<!,
  MFN:{name:"Medial Frontal Negativity (MFN)",body:"The MFN (Gehring and Willoughby, 2002; also sometimes called the medial frontal N2 or mismatch-related frontal negativity) is a fronto-central negative component peaking approximately 200-350 ms following stimuli that create conflict or violate expectations, measured in non-motor, non-error contexts. It is generated in the anterior cingulate cortex (ACC) and supplementary motor area (SMA) and reflects the conflict-monitoring function of these structures. The MFN has been observed in probabilistic reward learning (larger to unexpected negative outcomes), in incongruent Stroop-like conditions, and following norm violations in social and semantic contexts. It is related to but distinct from the ERN (which follows motor errors), the FRN (which follows feedback about outcomes), and the N2 family; the MFN is specifically associated with abstract prediction mismatch and cognitive conflict in the absence of overt response errors.",rules:[{key:"INCONGRUENT",desc:"Stimuli pair colour names with mismatched ink colours"},{key:"COLOUR",desc:"Name the ink colour of each word as fast as possible"},{key:"F / J",desc:"Press F for RED ink, J for BLUE ink, regardless of what the word says"},{key:"MFN",desc:"MFN ~250ms at FCz — larger for incongruent (BLUE in red ink) than congruent trials"},{key:"CONFLICT",desc:"MFN reflects ACC conflict monitoring between the word meaning and ink colour responses"}]},
  VPP:{name:"Vertex Positive Potential (VPP)",body:"The VPP (Botzel and Grusser, 1989) is a positive ERP component peaking approximately 150-200 ms at midline vertex (Cz) in response to face stimuli. It is the functional and anatomical complement of the N170: while N170 appears as a lateral temporal negativity (maximal at P9/P10 or TP9/TP10), the VPP appears as a midline positivity at the same latency, and both are thought to reflect the same underlying neural generator in the fusiform face area — the positive VPP is simply the view of the face-selective dipole from the top of the head, while N170 is the view from the lateral temporal surface. The VPP is face-specific (larger to faces than objects), is sensitive to face inversion (inverted faces reduce VPP), and is enhanced for familiar compared to unfamiliar faces.",rules:[{key:"FACE / OBJECT",desc:"Stimuli will be schematic faces and non-face objects"},{key:"CATEGORY",desc:"Press F for face, J for object, as quickly as possible"},{key:"VPP",desc:"VPP peaks at ~170ms at Cz (vertex) — same generator as N170 but opposite polarity"},{key:"INVERSION",desc:"VPP is reduced for upside-down faces — a marker of face-specific configural processing"},{key:"N170 vs VPP",desc:"N170 is recorded at lateral temporal electrodes; VPP is the same component seen at Cz"}]},
  ERAN:{name:"Early Right Anterior Negativity (ERAN)",body:"The ERAN (Koelsch et al., 2000) is a right-lateralised fronto-temporal negative ERP component peaking approximately 150-200 ms in response to music-syntactically irregular chords — chords that violate the harmonic expectations established by a preceding musical context. The ERAN is considered the music-syntactic analogue of the ELAN in language, both being early automatic responses to structural violations in their respective domains. The ERAN is followed by a later negativity (N5, ~500 ms) reflecting secondary music-syntactic reanalysis. ERAN amplitude is enhanced in individuals with greater musical training and is not dependent on explicit musical knowledge — it is observed even in non-musicians, though smaller. The ERAN dissociates from the N400 (semantic) and is not sensitive to the acoustic salience of the chord per se.",rules:[{key:"LISTEN",desc:"Listen to each chord sequence and judge whether the final chord sounds right"},{key:"Y / N",desc:"Press Y if the final chord fits the sequence, N if it sounds out of place"},{key:"TRUST YOUR EAR",desc:"Even without musical training, your auditory system detects harmonic violations"},{key:"ERAN",desc:"ERAN ~175ms right anterior reflects automatic music-syntactic processing"},{key:"TRAINING",desc:"Musical training enhances ERAN amplitude but is not required to generate the response"}]},
  N2B:{name:"N2b (Target N2)",body:"The N2b (Naatanen and Gaillard, 1983) is a fronto-central negativity peaking approximately 200-300 ms after a target stimulus in an oddball or detection paradigm. Unlike the N2pc which reflects spatial attention (contralateral to the attended location), the N2b reflects non-spatial stimulus categorisation — the detection that an attended stimulus matches a target template. The N2b is largest at Fz and Cz, is enhanced for infrequent targets relative to frequent standards, and is followed by the P300 (P3b). It is thought to reflect the mismatch between the perceived stimulus and the stored target representation in working memory. N2b amplitude increases with task difficulty and target-standard discriminability, and is reduced in attention deficit disorders and normal aging.",rules:[{key:"TARGET",desc:"Respond with SPACE when you see the target stimulus (X among other letters)"},{key:"STANDARD",desc:"Do NOT respond to standard stimuli"},{key:"FREQUENCY",desc:"Targets are rare (~20%) — sustained attention required"},{key:"N2b",desc:"N2b ~250ms at Fz/Cz reflects matching stimulus to target template"},{key:"P300",desc:"N2b is followed by P300 (P3b) which reflects context updating"}]},
  PD:{name:"Pd (Distractor Positivity)",body:"The Pd (Sawaki and Luck, 2010) is a positive ERP component peaking approximately 200-300 ms, lateralised contralateral to the location of a salient but task-irrelevant distractor. It is the functional complement of the N2pc: while N2pc reflects the allocation of spatial attention to a target, Pd reflects the active suppression of a salient distractor that would otherwise capture attention. Pd amplitude is enhanced when distractors are more attention-capturing (e.g. colour singletons in a difficult search), consistent with greater suppression effort. The Pd provides direct neural evidence for proactive distractor suppression — a mechanism that operates before attention is actually captured — distinct from reactive post-capture rejection. Pd is reduced in ADHD and in high-trait anxiety where suppression mechanisms are less efficient.",rules:[{key:"SEARCH",desc:"Find the unique shape among identical shapes and report its orientation"},{key:"DISTRACTOR",desc:"A coloured singleton distractor will appear — ignore it"},{key:"SUPPRESS",desc:"Do not look at the distractor — focus on the shape target"},{key:"Pd",desc:"Pd ~250ms contralateral to distractor reflects active suppression effort"},{key:"N2pc vs Pd",desc:"N2pc = attention to target; Pd = suppression of distractor — separable processes"}]},
  LAN:{name:"Left Anterior Negativity (LAN)",body:"The Left Anterior Negativity (Neville et al., 1991; Friederici, 2002) is a negative ERP component peaking at approximately 300-500 ms with a left anterior scalp distribution, elicited by morphosyntactic violations in language — such as subject-verb agreement errors ('The girl run home') or case marking errors. The LAN is distinct from the ELAN (which is earlier, ~150-200 ms, and reflects phrase structure violations) and from the N400 (which reflects semantic anomaly). The LAN is taken to reflect working memory processes engaged in building syntactic representations, particularly those involving morphological feature checking. It is sensitive to individual differences in working memory capacity, is reduced in agrammatic aphasia, and is modulated by native vs second language processing.",rules:[{key:"READ",desc:"Read each sentence carefully and judge whether it sounds grammatically correct"},{key:"Y / N",desc:"Press Y if the sentence is correct, N if it contains a grammatical error"},{key:"AGREEMENT",desc:"Violations involve subject-verb agreement errors ('The girl run home')"},{key:"LAN",desc:"LAN ~300-500ms at left frontal electrodes reflects morphosyntactic reanalysis"},{key:"DISTINCT",desc:"LAN is distinct from N400 (semantic) and ELAN (phrase structure)"}]},
  CPS:{name:"Closure Positive Shift (CPS)",body:"The Closure Positive Shift (Steinhauer et al., 1999) is a broadly distributed positive ERP component elicited approximately 200-500 ms after the onset of a prosodic boundary in spoken language, such as an intonation phrase boundary signalled by pitch change, lengthening, and pause. The CPS is thought to reflect the listener's prosodic parsing of speech into intonation phrases — a level of linguistic processing distinct from both syntactic and semantic analysis. The CPS has been observed across languages and appears to be driven primarily by pitch reset (F0 boundary tone) rather than by pause alone. It is reduced in individuals with poor prosodic sensitivity and has been studied in second language acquisition, where learners show delayed or reduced CPS compared to native speakers. The browser paradigm presents written sentences with prosodic boundary markers (punctuation and prosodic cues) and asks for naturalness judgments.",rules:[{key:"READ",desc:"Read each sentence aloud in your head, paying attention to its natural rhythm"},{key:"NATURAL",desc:"Press Y if the phrasing sounds natural, N if something sounds awkward"},{key:"PROSODY",desc:"Focus on the intonation and rhythm — not just grammar or meaning"},{key:"CPS",desc:"CPS ~200-500ms at bilateral temporal-frontal electrodes marks intonation phrase boundaries"},{key:"BOUNDARY",desc:"Slash marks (/) indicate intonation phrase boundaries in test stimuli"}]}--
═══════════════════════════════════════════════════════════
  SR · COGNOS GRID — CHANGELOG
═══════════════════════════════════════════════════════════
  R13 (current) — in-page test harness + reliability pass
      - Added in-page test harness (19 suites, "▶ TESTS" sidebar button)
        · Structure: tiles, paradigms, i18n, dispatch, export, uinav
        · Exit paths safe — RESET / abort / ESC all return home from all 112 tasks
        · Input modalities — keyboard + mouse (voice/mic intentionally not tested)
        · Task UI: auditory (11) + visual (14) ERP screens/controls/cleanup
        · Tasks: 6 family suites (Attention/Exec, Memory, Language, Reasoning/Motor,
          Other ERP, Clinical/Sensory) covering the remaining 87 tasks
        · Robustness: dangling onclick handlers, hideAll drift, setInterval leaks
      - Consent gate with required email + institution (persisted; skipped after
        first acknowledgement; ?reconsent=1 forces it again)
      - Developer bypass (?dev=1 → localStorage cognos.devMode; ?dev=0 clears)
      - Gmail-compose results export to stephenfsands@gmail.com
      - Sidebar scroll fix (overflow-y:auto so all tasks reachable)
      - BUGFIX: bntScreen (Boston Naming Test) was missing from hideAll()'s screen
        list — it would not hide on navigation and could stack behind the next
        screen. Added to the list. (Found by the new hideAll-drift test.)

  R12 (Spanish toggle, previous)
      - Added Spanish / Español language toggle
        · EN/ES buttons on home screen
        · Full translation of all 24 task introductions
        · Spanish tile labels, grid section labels, UI strings
        · Language-aware showIntro() — swaps PARADIGMS entry dynamically

  R12 (grid split, previous)
      - Split task grid into two sections: Neuropsych and ERP
        · Neuropsych: GNG, N-Back, Spatial, Posner, Free Recall, Card Sort,
          Visual Recog, Sternberg, Trail Making, Digit Symbol, Picture Naming,
          Mental Rotation, Stroop, Flanker, Stop Signal, Digit Span,
          Finger Tap
        · ERP: Contrast Reversal, Auditory P300, N400, MMN, P600, ERN, CNV
        · Tools row (Task Editor, Media) below both grids

  R11 (previous)
      - Added Finger Tapping Task (FTT)
        · Dominant hand, non-dominant hand, alternating subtests
        · 3 × 10-second trials per subtest (configurable)
        · Metrics: taps/trial, inter-tap interval mean + SD, asymmetry ratio
        · Alternating coordination index (overlap penalty)
        · Photocell trigger on every tap
        · Full CSV export

  R10 (previous)
      - Added Contingent Negative Variation (CNV)
        · Warning tone (S1) → imperative stimulus (S2) paradigm
        · Configurable S1–S2 interval (foreperiod)
        · Go response (SPACE) to S2; catch trials (no S2) for false-alarm rate
        · Metrics: hit rate, FA rate, mean RT, foreperiod RT effect
        · Photocell trigger on every S1 and S2 onset
        · Full CSV export

  R9  (previous)
      - Added Digit Span
        · Forward and backward span subtests
        · Adaptive staircase: sequence grows on correct, shrinks on incorrect
        · Two strikes per span length (WAIS-style)
        · Span score = longest correctly recalled sequence
        · Digit-by-digit number-pad entry + keyboard
        · Full CSV export

  R8  (previous)
      - Added Stroop Color-Word
        · Congruent / incongruent / neutral conditions
        · Keyboard (F/G/H/J) and mouse response modes
        · Stroop interference score (incongruent − congruent RT)
        · d', hit rate, condition RT breakdown
        · Full CSV export

  R7  (previous)
      - Added Contrast Reversal (CSR)
        · Steady checkerboard at configurable reversal rate
        · Target = 45° rotated orientation for one cycle
        · Go/No-Go: SPACE on target reversal
        · Metrics: hit rate, FA rate, d', avg RT
      - Added Auditory P300
        · Web Audio API synthesis — no external files
        · Standard (1000 Hz) vs oddball (2000 Hz) tones
        · Configurable frequencies, oddball probability, ISI
        · Visual circle indicator + audio
        · Metrics: hit rate, FA rate, d', avg RT
      - Added Task Editor (⚙)
        · Configure any task's parameters without touching code
        · Per-task field definitions with min/max/description
        · Save / Reset to defaults buttons
        · Changes applied live to task objects
      - Grid expanded to 4 columns (10 tiles total)
      - All new tasks wired to stats, exportAllCSV, resetAll

  R5/CSR_v2  (upload baseline)
      - 7-task battery with CSR stub
      - Go/No-Go, N-Back, Spatial, Posner, Free Recall,
        WCST, Visual Recognition
      - CSR stub: simple static checkerboard, no trial logic
═══════════════════════════════════════════════════════════
-->
<!DOCTYPE html>
<html lang="en" id="htmlRoot">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>SR·COGNOS GRID FULL</title>
<style>
@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,600;1,400&family=Source+Code+Pro:wght@300;400;600&display=swap');
:root{--bg:#060d14;--bg2:#0c1824;--bg3:#111f2c;--gold:#d4b456;--gold2:#f0d888;--text:#eaf4ff;--dim:#8ab4d0;--ok:#5edc9e;--err:#f07070;}
*{box-sizing:border-box;margin:0;padding:0;}
body{background:var(--bg);color:var(--text);font-family:'Source Code Pro',monospace;display:flex;height:100vh;overflow:hidden;}

/* ── SIDEBAR ── */
.sidebar{width:220px;background:var(--bg2);border-right:1px solid #1a2f44;display:flex;flex-direction:column;padding:20px 16px;gap:14px;flex-shrink:0;overflow-y:auto;min-height:0;}
.sidebar-title{font-family:'EB Garamond',serif;font-size:1.15rem;letter-spacing:0.15em;color:var(--gold);border-bottom:1px solid #1a2f44;padding-bottom:10px;}
.info-row{font-size:0.82rem;color:var(--dim);line-height:1.9;}
.info-row span{color:var(--text);float:right;}
.sep{border:none;border-top:1px solid #1a2f44;}
.sidebar-btn{padding:9px 12px;border:1px solid #2a4060;background:none;color:var(--dim);font-family:'Source Code Pro',monospace;font-size:0.82rem;cursor:pointer;letter-spacing:0.08em;transition:all 0.15s;text-align:left;}
.sidebar-btn:hover{border-color:var(--gold);color:var(--gold);}
.sidebar-btn:disabled{opacity:0.3;cursor:default;}
.log-area{flex:1;overflow-y:auto;font-size:0.75rem;color:var(--dim);line-height:1.7;border-top:1px solid #1a2f44;padding-top:10px;}
.log-area div{border-bottom:1px solid #0e1e2c;padding:2px 0;}
.log-ok{color:var(--ok)!important;}
.log-err{color:var(--err)!important;}

/* ── INPUT PANEL ── */
.input-panel{background:#0a1620;border:1px solid #1a2f44;padding:8px 12px;font-size:0.78rem;color:var(--dim);display:flex;flex-direction:column;gap:6px;}
.input-mode-row{display:flex;gap:5px;flex-wrap:wrap;}
.imode-btn{padding:5px 10px;border:1px solid #2a4060;background:none;color:var(--dim);font-family:'Source Code Pro';font-size:0.75rem;cursor:pointer;letter-spacing:0.06em;transition:all 0.15s;}
.imode-btn.active{border-color:var(--gold);color:var(--gold);background:#1a1200;}
.imode-btn:hover{border-color:#4a6a8a;color:var(--text);}
.mouse-indicator{display:flex;align-items:center;gap:6px;font-size:0.78rem;}
.mouse-btn-icon{width:14px;height:18px;border:1px solid #2a4060;border-radius:2px;display:flex;align-items:center;justify-content:center;font-size:0.82rem;color:var(--dim);transition:background 0.08s,border-color 0.08s;}
.mouse-btn-icon.left-active{background:#0a2018;border-color:var(--ok);color:var(--ok);}
.mouse-btn-icon.right-active{background:#1a0a08;border-color:var(--err);color:var(--err);}

/* ── SPEECH PANEL ── */
.speech-panel{background:#0a1620;border:1px solid #1a2f44;padding:10px 12px;font-size:0.78rem;color:var(--dim);display:flex;flex-direction:column;gap:6px;}
.sp-row{display:flex;align-items:center;gap:8px;}
.mic-btn{width:28px;height:28px;border-radius:50%;border:1px solid #2a4060;background:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:0.75rem;transition:all 0.15s;flex-shrink:0;}
.mic-btn:hover{border-color:var(--gold);}
.mic-btn.listening{border-color:var(--ok);background:#0a2018;animation:pulse 1s ease-in-out infinite;}
.mic-btn.speaking{border-color:var(--gold);background:#1a1500;animation:pulse-gold 0.8s ease-in-out infinite;}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(78,201,148,0.3)}50%{box-shadow:0 0 0 5px rgba(78,201,148,0)}}
@keyframes pulse-gold{0%,100%{box-shadow:0 0 0 0 rgba(200,168,75,0.3)}50%{box-shadow:0 0 0 5px rgba(200,168,75,0)}}
.speech-status{font-size:0.78rem;color:var(--dim);flex:1;}
.speech-status.on{color:var(--ok);}
.speech-status.speaking{color:var(--gold);}
.transcript-box{background:#060d14;border:1px solid #1a2f44;padding:4px 6px;font-size:0.78rem;color:var(--dim);min-height:28px;letter-spacing:0.04em;line-height:1.5;word-break:break-word;}
.transcript-box.heard{color:var(--text);}
.sp-label{font-size:0.75rem;color:var(--dim);letter-spacing:0.08em;}
.sp-toggle-row{display:flex;align-items:center;gap:6px;}
.toggle-switch{position:relative;width:28px;height:16px;cursor:pointer;}
.toggle-switch input{opacity:0;width:0;height:0;}
.toggle-track{position:absolute;inset:0;background:#1a2f44;border-radius:8px;transition:background 0.2s;}
.toggle-switch input:checked+.toggle-track{background:var(--ok);}
.toggle-thumb{position:absolute;top:2px;left:2px;width:12px;height:12px;background:#8ab;border-radius:50%;transition:transform 0.2s,background 0.2s;}
.toggle-switch input:checked~.toggle-thumb{transform:translateX(12px);background:#fff;}
.vol-bar{display:flex;gap:2px;align-items:flex-end;height:14px;}
.vol-bar span{width:3px;background:#1a2f44;border-radius:1px;transition:height 0.08s,background 0.08s;}

.task-screen{width:100%;min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px;gap:14px;box-sizing:border-box;position:relative;}
/* Hide in-task instruction text and key hints during stimulus presentation */
.task-screen [id$="Instruct"],
.task-screen .key-hint,
.task-screen .key-legend,
.task-screen .p300-hint,
.task-screen .csr-hint,
.task-screen .wcst-rule-hint,
.task-screen .fr-recall-hint,
#posnerScreen [id$="Instruct"],#posnerScreen .key-hint,#posnerScreen .key-legend,
#wcstScreen [id$="Instruct"],#wcstScreen .key-hint,#wcstScreen .key-legend,#wcstScreen .wcst-rule-hint{display:none!important;}
/* Hide all task chrome during stimulus presentation, keeping ONLY the progress bar
   and the stimulus content visible. Targets the header line (task name + trial
   counter + phase indicator) and paradigm-config blocks. The PRACTICE MODE banner
   is absolutely-positioned so it stays where it is. */
.task-screen > div:has(> span[id$="-trial"]),
.task-screen > div:has(> span[id$="-acc"]),
.task-screen > div:has(> span[id$="-phase"]),
.task-screen > div:has(> span[id$="-problem"]),
.task-screen > div:has(> span[id$="-elapsed"]),
.task-screen > div:has(> span[id$="-strokes"]),
.task-screen > div:has(> span[id$="-line"]),
.task-screen > div:has(> span[id$="-moves"]),
.task-screen > div:has(> span[id$="-min"]),
.task-screen > div:has(> span[id$="-catch"]),
.task-screen > div:has(> span[id$="-runs"]),
.task-screen > div:has(> span[id$="-cue-badge"]),
.task-screen > .stb-header,
.task-screen > .task-header,
.task-screen > .vrt-header,
.task-screen > .wcst-header,
.task-screen .p300-freq-row,
.task-screen .posner-info,
#posnerScreen > .task-header,
#posnerScreen > .posner-info,
#posnerScreen > div:has(> span[id$="-trial"]),
#posnerScreen > div:has(> span[class*="cue-type-badge"]),
#wcstScreen > .wcst-header,
#wcstScreen > div:has(> span[id$="-trial"]),
/* Catch-all: any direct-child div of a task-screen whose first child is a gold-styled
   task-name span. This covers questionnaires, audiogram, MoCA, phonemic fluency,
   contrast reversal, and any other custom header layouts. */
.task-screen > div:has(> span[style*="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em"]),
.task-screen > div:has(> span[style*="color: var(--gold); font-size: 0.9rem"]){display:none!important;}
/* ── MAIN ── */
.main{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;background:var(--bg3);position:relative;overflow-y:auto;overflow-x:hidden;}

/* ── HOME ── */
#home{display:flex;flex-direction:column;align-items:center;gap:30px;padding:40px 20px;}
.home-title{font-family:'EB Garamond',serif;font-size:2.0rem;letter-spacing:0.3em;color:var(--gold);text-align:center;}
.home-sub{font-size:0.8rem;color:var(--dim);letter-spacing:0.15em;text-align:center;}
.task-select-grid{display:grid;grid-template-columns:repeat(4,130px);gap:12px;}
.grid-section-label{font-size:0.75rem;letter-spacing:0.18em;color:var(--gold);font-family:'Source Code Pro',monospace;text-align:left;padding-bottom:4px;margin-top:14px;border-bottom:1px solid rgba(200,168,75,0.3);width:100%;max-width:556px;}
.grid-section-label:first-child{margin-top:0;}
.grid-section-label span{color:var(--dim);font-weight:400;margin-left:8px;font-size:0.85rem;}
.tools-row{display:flex;gap:12px;margin-top:14px;}
.task-tile{height:90px;border:1px solid #3a5470;background:var(--bg2);display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;font-size:0.85rem;letter-spacing:0.12em;color:var(--dim);transition:all 0.2s;gap:6px;position:relative;}
.task-tile:hover{border-color:var(--gold);color:var(--gold);background:#0e1e2c;}
.task-tile.completed{border-color:rgba(86,180,120,0.55);}
/* Green = recorded run (::after, outermost-right). */
.task-tile.completed::after{content:'\2713';position:absolute;top:5px;right:6px;width:17px;height:17px;line-height:17px;text-align:center;font-size:0.72rem;font-weight:700;color:#0a1620;background:#56b478;border-radius:3px;letter-spacing:0;box-shadow:0 0 0 1px rgba(86,180,120,0.4);}
/* Yellow = practice completed (::before, sits just left of the green badge). */
.task-tile.practiced::before{content:'\2713';position:absolute;top:5px;right:6px;width:17px;height:17px;line-height:17px;text-align:center;font-size:0.72rem;font-weight:700;color:#0a1620;background:var(--gold);border-radius:3px;letter-spacing:0;box-shadow:0 0 0 1px rgba(212,180,86,0.4);}
.task-tile.practiced{border-color:rgba(212,180,86,0.5);}
/* When BOTH apply, show them side by side: shift the yellow one left of green. */
.task-tile.completed.practiced{border-color:rgba(86,180,120,0.55);}
.task-tile.completed.practiced::before{right:26px;}
.task-tile .task-icon{font-size:1.4rem;}
.task-tile.empty{border-color:#111f2c;cursor:default;pointer-events:none;}
.ftt-arena{display:flex;flex-direction:column;align-items:center;gap:16px;min-height:180px;justify-content:center;}
.ftt-tap-btn{width:110px;height:110px;border-radius:50%;border:2px solid #2a4060;background:#0a1620;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:2.4rem;transition:border-color 0.06s,background 0.06s,transform 0.06s;user-select:none;-webkit-user-select:none;}
.ftt-tap-btn:active,.ftt-tap-btn.flash{border-color:var(--gold);background:#1a1200;transform:scale(0.93);}
.ftt-tap-btn.left-active{border-color:#5b9fda;background:#061828;}
.ftt-tap-btn.right-active{border-color:#c8a84b;background:#1a1200;}
.ftt-alt-row{display:flex;gap:28px;align-items:center;}
.ftt-alt-btn{width:90px;height:90px;border-radius:50%;border:2px solid #2a4060;background:#0a1620;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.8rem;transition:border-color 0.06s,background 0.06s,transform 0.06s;user-select:none;-webkit-user-select:none;}
.ftt-alt-btn.next{border-color:var(--gold);background:#1a1200;}
.ftt-alt-btn.flash{border-color:var(--ok);background:#061a10;transform:scale(0.91);}
.ftt-counter{font-size:3rem;font-family:'Source Code Pro',monospace;color:var(--gold);min-width:80px;text-align:center;line-height:1;}
.ftt-timer-ring{font-size:0.82rem;color:var(--dim);letter-spacing:0.12em;}
.ftt-subtest-label{font-size:0.88rem;color:var(--dim);letter-spacing:0.15em;}
.ftt-iti-msg{font-size:0.82rem;color:var(--dim);letter-spacing:0.1em;min-height:1.2em;}
.cnv-arena{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;min-height:160px;}
.cnv-circle{width:80px;height:80px;border-radius:50%;border:2px solid #1a2f44;background:#0a1620;display:flex;align-items:center;justify-content:center;font-size:1.8rem;transition:border-color 0.08s,background 0.08s;}
.cnv-circle.s1{border-color:#4a8aaa;background:#0a1828;}
.cnv-circle.s2{border-color:var(--gold);background:#1a1200;}
.cnv-circle.catch{border-color:var(--dim);background:#0a1620;}
.cnv-fp-bar-wrap{width:280px;height:6px;background:#0e1e2c;border:1px solid #1a2f44;border-radius:3px;overflow:hidden;}
.cnv-fp-bar{height:100%;width:0%;background:var(--gold);transition:width linear;}
.dst-numpad{display:grid;grid-template-columns:repeat(3,56px);gap:6px;justify-content:center;}
.dst-numpad-btn{height:48px;width:56px;border:1px solid #2a4060;background:none;color:var(--text);font-family:'Source Code Pro',monospace;font-size:1.1rem;cursor:pointer;transition:all 0.1s;letter-spacing:0.05em;}
.dst-numpad-btn:hover{border-color:var(--gold);color:var(--gold);}
.dst-numpad-btn:active{background:#1a1200;border-color:var(--gold2);}
.dst-digit-display{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;min-height:36px;align-items:center;}
.dst-digit{font-size:2rem;font-family:'Source Code Pro',monospace;color:var(--gold);min-width:24px;text-align:center;transition:opacity 0.15s;}
.dst-seq-dot{width:10px;height:10px;border-radius:50%;background:#1a2f44;transition:background 0.1s;}
.dst-seq-dot.filled{background:var(--gold);}
.dst-seq-dot.ok{background:var(--ok);}
.dst-seq-dot.err{background:var(--err);}
.stroop-resp-btn{padding:8px 14px;border:1px solid #2a4060;background:none;font-family:'Source Code Pro',monospace;font-size:0.85rem;letter-spacing:0.08em;cursor:pointer;transition:all 0.12s;}
.stroop-resp-btn:hover{background:rgba(200,168,75,0.08);}
.trials-input-row{display:flex;gap:10px;align-items:center;font-size:0.88rem;color:var(--dim);}
.trials-input-row input{width:60px;padding:4px 6px;background:var(--bg2);border:1px solid #2a4060;color:var(--text);font-family:'Source Code Pro';font-size:0.88rem;text-align:center;}
.trials-input-row input:focus{outline:none;border-color:var(--gold);}

/* ── INTRO SCREEN ── */
#introScreen{display:none;flex-direction:column;align-items:center;justify-content:center;gap:0;width:100%;min-height:100%;padding:40px;}
.intro-wrap{max-width:560px;width:100%;display:flex;flex-direction:column;gap:24px;}
.intro-task-name{font-family:'EB Garamond',serif;font-size:1.65rem;letter-spacing:0.25em;color:var(--gold);}
.intro-divider{border:none;border-top:1px solid #1a2f44;margin:0;}
.intro-body{font-family:'EB Garamond',serif;font-size:1.15rem;color:#c8ddef;line-height:1.9;font-style:italic;}
.intro-rules{display:flex;flex-direction:column;gap:10px;}
.intro-rule{display:flex;gap:12px;align-items:flex-start;font-size:0.85rem;color:var(--dim);line-height:1.7;}
.intro-rule-key{color:var(--gold);letter-spacing:0.1em;flex-shrink:0;min-width:60px;padding-top:1px;}
.intro-actions{display:flex;gap:12px;align-items:center;margin-top:4px;}
.intro-btn{padding:11px 28px;border:1px solid #3a5070;background:none;color:var(--dim);font-family:'Source Code Pro',monospace;font-size:0.85rem;cursor:pointer;letter-spacing:0.1em;transition:all 0.15s;}
.intro-btn:hover{border-color:var(--gold);color:var(--gold);}
.intro-btn.primary{border-color:#2a5040;color:var(--ok);}
.intro-btn.primary:hover{background:#0a2018;}
.intro-practice-note{font-size:0.75rem;color:var(--dim);letter-spacing:0.08em;}

/* ── MIC VALIDATION SCREEN ── */
#micValidScreen{display:none;flex-direction:column;align-items:center;justify-content:center;width:100%;height:100%;padding:40px;}
.micv-wrap{max-width:480px;width:100%;display:flex;flex-direction:column;gap:22px;}
.micv-title{font-family:'EB Garamond',serif;font-size:1.3rem;letter-spacing:0.2em;color:var(--gold);}
.micv-divider{border:none;border-top:1px solid #1a2f44;}
.micv-step{display:flex;gap:14px;align-items:flex-start;font-size:0.88rem;color:var(--dim);line-height:1.7;}
.micv-step-num{width:20px;height:20px;border:1px solid #2a4060;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:0.78rem;flex-shrink:0;color:var(--dim);}
.micv-step-num.done{border-color:var(--ok);color:var(--ok);background:#061a10;}
.micv-step-num.active{border-color:var(--gold);color:var(--gold);animation:pulse-gold 1s ease-in-out infinite;}
.micv-step-num.fail{border-color:var(--err);color:var(--err);}
.micv-step-body{flex:1;}
.micv-step-label{color:var(--text);letter-spacing:0.06em;margin-bottom:2px;}
.micv-step-sub{font-size:0.8rem;color:var(--dim);}
/* volume meter bar */
.micv-vol-wrap{display:flex;gap:3px;align-items:flex-end;height:28px;padding:2px 0;}
.micv-vol-bar{width:8px;background:#1a2f44;border-radius:1px;transition:height 0.07s,background 0.07s;}
/* spoken word test */
.micv-prompt-word{font-family:'EB Garamond',serif;font-size:2.4rem;letter-spacing:0.1em;color:var(--gold2);text-align:center;min-height:56px;}
.micv-heard-row{display:flex;gap:8px;flex-wrap:wrap;min-height:28px;align-items:center;}
.micv-heard-chip{padding:2px 10px;font-size:0.82rem;border:1px solid #2a4060;color:var(--dim);letter-spacing:0.08em;}
.micv-heard-chip.match{border-color:var(--ok);color:var(--ok);background:#061a10;}
.micv-heard-chip.nomatch{border-color:var(--dim);color:var(--dim);}
/* status row */
.micv-status{font-size:0.85rem;min-height:20px;letter-spacing:0.08em;}
.micv-status.ok{color:var(--ok);}
.micv-status.err{color:var(--err);}
.micv-status.warn{color:var(--gold);}
.micv-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;}

/* ── PRACTICE BANNER ── */
.practice-banner{
  position:absolute;top:12px;left:50%;transform:translateX(-50%);
  background:#0e1e0a;border:1px solid #2a5020;
  padding:4px 14px;font-size:0.78rem;color:var(--ok);letter-spacing:0.15em;
  pointer-events:none;
}

/* ── TASK SCREEN ── */
#taskscreen{display:none;flex-direction:column;align-items:center;justify-content:center;min-height:100%;gap:16px;position:relative;box-sizing:border-box;padding:40px 20px;}
/* ── Battery-wide declutter ──────────────────────────────────────────────
   Remove RT-history charts and the static key-hint / key-legend lines from
   EVERY task screen. Response buttons, stimuli and dynamic prompts (e.g.
   #nbackPrompt) are kept. Elements are hidden (not removed) so any JS that
   writes to them still works; the response keys remain documented on each
   task's intro screen. */
.rt-chart-wrap,
#rtChartWrap,
.key-hint,
.key-legend,
.posner-settings,
.posner-info,
.posner-cue-label,
#posnerScreen .controls,
#taskscreen .task-header,
#taskscreen .progress-bar-wrap,
.nback-prompt,
#taskControls,
.si-stat{display:none!important;}
/* SPATIAL / GNG / N-back keep their response buttons and headers (per the
   battery-wide rule: only RT-charts and key-hint legends are removed, which the
   global rule above already handles). Their layout centering lives in
   #taskscreen and the per-task render code. */
.task-header{display:flex;gap:30px;align-items:center;font-size:0.82rem;color:var(--dim);}
.task-header .task-label{color:var(--gold);font-size:1.05rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;}
.stim-grid{display:grid;grid-template-columns:repeat(3,110px);grid-template-rows:repeat(3,95px);gap:10px;}
.cell{border:1px solid #1e3040;background:#0a1620;display:flex;align-items:center;justify-content:center;font-size:1.8rem;cursor:pointer;transition:background 0.1s,border-color 0.1s;user-select:none;}
.cell:hover{border-color:var(--dim);}
.cell.go-stim{border-color:var(--gold);background:#1a1500;color:var(--gold);}
.cell.nogo-stim{border-color:var(--dim);background:#0a1218;color:var(--dim);}
.cell.spatial-active{background:var(--gold);border-color:var(--gold2);}
.cell.nback-stim{font-size:2.2rem;font-weight:600;color:var(--text);border-color:#3a5070;background:#0d1c28;}
.cell.flash-ok{background:#0a2a18!important;border-color:var(--ok)!important;}
.cell.flash-err{background:#2a0a0a!important;border-color:var(--err)!important;}
/* Progress bars are hidden battery-wide: an on-screen elapsed-time / trials-
   remaining cue is a confound — it drives anticipatory responses and (on
   passive/self-paced ERP tasks especially) contaminates the slow pre-movement
   and pre-attentive potentials being measured. Code still updates bar.style
   .width harmlessly; the element is simply never shown. To re-enable a single
   task's bar, override with `display:flex` on that screen's wrapper. */
.progress-bar-wrap{width:370px;height:3px;background:#0e1e2c;display:none;}
.progress-bar{height:100%;background:var(--gold);transition:width 0.2s;}
.pq-field{display:flex;flex-direction:column;gap:5px;}
.pq-label{font-size:0.74rem;letter-spacing:0.1em;color:var(--mid);font-family:'Source Code Pro',monospace;text-transform:uppercase;}
.pq-opt{color:var(--dim);text-transform:none;letter-spacing:0;}
.pq-input{background:rgba(10,21,32,0.6);border:1px solid #2a4060;color:#e8e0c8;font-family:'Source Code Pro',monospace;font-size:0.9rem;padding:9px 12px;border-radius:3px;outline:none;width:100%;box-sizing:border-box;}
.pq-input:focus{border-color:var(--gold);}
.nback-prompt{font-size:0.8rem;color:var(--dim);letter-spacing:0.1em;min-height:18px;text-align:center;}
.controls{display:flex;gap:10px;}
.ctrl-btn{padding:10px 24px;border:1px solid #3a5070;background:none;color:var(--dim);font-family:'Source Code Pro',monospace;font-size:0.85rem;cursor:pointer;letter-spacing:0.1em;transition:all 0.15s;}
.ctrl-btn:hover{border-color:var(--gold);color:#fff;background:#0e1e2c;}
.ctrl-btn.go-btn{border-color:#2a5040;}
.ctrl-btn.nogo-btn{border-color:#502a2a;}
.ctrl-btn.go-btn:hover{border-color:var(--ok);color:var(--ok);}
.ctrl-btn.nogo-btn:hover{border-color:var(--err);color:var(--err);}
.feedback{font-size:0.9rem;min-height:20px;letter-spacing:0.1em;transition:color 0.2s;}
.feedback.ok{color:var(--ok);}
.feedback.err{color:var(--err);}
.feedback.timeout{color:var(--dim);}
.key-hint{font-size:0.75rem;color:var(--dim);letter-spacing:0.08em;text-align:center;min-height:16px;}

/* ── PRACTICE COMPLETE OVERLAY ── */
#practiceComplete{display:none;flex-direction:column;align-items:center;gap:20px;}
.pc-title{font-family:'EB Garamond',serif;font-size:1.2rem;letter-spacing:0.2em;color:var(--gold);}
.pc-stats{font-size:0.88rem;color:var(--dim);line-height:2;}
.pc-stats span{color:var(--text);}

/* ── POSNER SCREEN ── */
#posnerScreen{display:none;flex-direction:column;align-items:center;justify-content:center;gap:18px;position:relative;min-height:100%;width:100%;padding:40px 20px;box-sizing:border-box;}
.posner-arena{display:flex;align-items:center;justify-content:center;gap:0;position:relative;height:140px;width:500px;}
.posner-box{width:110px;height:110px;border:2px solid #2a4060;background:#0a1620;display:flex;align-items:center;justify-content:center;position:relative;transition:border-color 0.08s,background 0.08s;cursor:pointer;}
.posner-box:hover{border-color:#3a5070;}
.posner-box.cued{border-color:var(--gold);box-shadow:0 0 0 1px var(--gold);}
.posner-box.target-flash{background:#1a1500;border-color:var(--gold2);}
.posner-fixation{width:120px;display:flex;align-items:center;justify-content:center;flex-shrink:0;position:relative;}
.posner-target{font-size:2rem;color:var(--gold2);}
.posner-arrow{font-size:1.8rem;color:var(--gold);transition:opacity 0.1s;position:absolute;}
.posner-info{font-size:0.82rem;color:var(--dim);letter-spacing:0.1em;display:flex;gap:24px;}
.posner-info span{color:var(--text);}
.posner-cue-label{position:absolute;bottom:4px;right:6px;font-size:0.88rem;letter-spacing:0.1em;color:var(--dim);}
.posner-settings{display:flex;gap:16px;font-size:0.82rem;color:var(--dim);align-items:center;}
.posner-settings select,.posner-settings input{background:var(--bg2);border:1px solid #2a4060;color:var(--text);font-family:'Source Code Pro';font-size:0.82rem;padding:3px 6px;}
.posner-settings select:focus,.posner-settings input:focus{outline:none;border-color:var(--gold);}
.cue-type-badge{font-size:0.75rem;padding:2px 7px;border:1px solid #2a4060;color:var(--dim);letter-spacing:0.1em;}
.cue-type-badge.valid{border-color:#2a5040;color:var(--ok);}
.cue-type-badge.invalid{border-color:#502a2a;color:var(--err);}
.cue-type-badge.neutral{border-color:var(--dim);color:var(--dim);}

/* ── RIPPLE ── */
@keyframes ripple{0%{transform:scale(0);opacity:0.7}100%{transform:scale(2.5);opacity:0}}
.ripple{position:fixed;pointer-events:none;border-radius:50%;width:28px;height:28px;margin:-14px 0 0 -14px;animation:ripple 0.35s ease-out forwards;}
.ripple.left-click{background:rgba(78,201,148,0.5);}
.ripple.right-click{background:rgba(224,92,92,0.4);}

/* ── FREE RECALL ── */
#frScreen{display:none;flex-direction:column;align-items:center;justify-content:center;gap:20px;width:100%;min-height:100%;padding:30px 40px;box-sizing:border-box;position:relative;}
.fr-phase-label{font-size:0.78rem;letter-spacing:0.2em;color:var(--dim);text-transform:uppercase;}
/* study phase */
.fr-study-wrap{display:flex;flex-direction:column;align-items:center;gap:18px;width:100%;}
#frStudyPhase{flex-direction:column;align-items:center;justify-content:center;width:100%;}
.fr-recog-btn{display:flex;flex-direction:column;align-items:center;gap:8px;padding:18px 34px;border:1.5px solid #2a4060;border-radius:10px;background:#0a1620;color:var(--text);cursor:pointer;transition:border-color .15s,background .15s;min-width:120px;}
.fr-recog-btn:hover{border-color:var(--gold);background:#0e1d2c;}
.fr-recog-key{font-family:'Source Code Pro',monospace;font-size:1.1rem;color:var(--gold);border:1px solid #2a4060;border-radius:4px;padding:1px 9px;}
.fr-recog-lbl{font-family:'EB Garamond',serif;font-size:1.4rem;letter-spacing:0.1em;}
.fr-recog-btn.flash-ok{border-color:var(--ok);background:rgba(78,201,148,0.12);}
.fr-recog-btn.flash-err{border-color:var(--err);background:rgba(224,92,92,0.12);}
.fr-word-display{font-family:'EB Garamond',serif;font-size:3.2rem;letter-spacing:0.08em;color:var(--text);min-height:72px;display:flex;align-items:center;justify-content:center;transition:opacity 0.15s;}
.fr-word-display.blank{opacity:0;}
.fr-study-counter{font-size:0.82rem;color:var(--dim);letter-spacing:0.1em;}
.fr-study-progress{width:320px;height:2px;background:#0e1e2c;}
.fr-study-bar{height:100%;background:var(--gold);transition:width 0.3s;}
/* distractor phase */
.fr-distractor-wrap{display:flex;flex-direction:column;align-items:center;gap:16px;}
.fr-distractor-problem{font-family:'EB Garamond',serif;font-size:2.4rem;color:var(--text);letter-spacing:0.05em;}
.fr-distractor-input{background:var(--bg2);border:1px solid #2a4060;color:var(--text);font-family:'Source Code Pro';font-size:1.2rem;padding:8px 14px;text-align:center;width:120px;outline:none;}
.fr-distractor-input:focus{border-color:var(--gold);}
.fr-distractor-fb{font-size:0.88rem;min-height:18px;letter-spacing:0.1em;}
.fr-distractor-fb.ok{color:var(--ok);}
.fr-distractor-fb.err{color:var(--err);}
.fr-distractor-timer{font-size:0.82rem;color:var(--dim);}
/* recall phase */
.fr-recall-wrap{display:flex;flex-direction:column;align-items:center;gap:14px;width:100%;max-width:520px;}
.fr-recall-header{display:flex;justify-content:space-between;width:100%;font-size:0.82rem;color:var(--dim);}
.fr-recall-input{background:var(--bg2);border:1px solid #2a4060;color:var(--text);font-family:'Source Code Pro';font-size:0.9rem;padding:10px 14px;width:100%;outline:none;letter-spacing:0.05em;}
.fr-recall-input:focus{border-color:var(--gold);}
.fr-recall-chips{display:flex;flex-wrap:wrap;gap:6px;width:100%;min-height:32px;}
.fr-chip{padding:3px 10px;font-size:0.82rem;letter-spacing:0.08em;border:1px solid #2a4060;color:var(--dim);}
.fr-chip.hit{border-color:var(--ok);color:var(--ok);background:#061a10;}
.fr-chip.intrusion{border-color:var(--err);color:var(--err);background:#1a0608;}
.fr-chip.duplicate{border-color:var(--dim);color:var(--dim);}
.fr-recall-timer{font-size:0.82rem;color:var(--dim);letter-spacing:0.1em;}
.fr-recall-timer.urgent{color:var(--err);}
.fr-recall-hint{font-size:0.78rem;color:var(--dim);letter-spacing:0.08em;}
/* results */
.fr-results-wrap{display:flex;flex-direction:column;align-items:center;gap:20px;width:100%;max-width:520px;}
.fr-results-title{font-family:'EB Garamond',serif;font-size:1.2rem;letter-spacing:0.2em;color:var(--gold);}
.fr-metrics{display:flex;gap:28px;font-size:0.88rem;color:var(--dim);}
.fr-metrics span{color:var(--text);}
.fr-word-list{display:flex;flex-wrap:wrap;gap:6px;width:100%;}
.fr-result-chip{padding:3px 10px;font-size:0.82rem;letter-spacing:0.08em;border:1px solid #2a4060;}
.fr-result-chip.recalled{border-color:var(--ok);color:var(--ok);background:#061a10;}
.fr-result-chip.missed{border-color:var(--dim);color:var(--dim);}
.fr-serial-chart{width:100%;max-width:520px;}
.fr-serial-bars{display:flex;gap:4px;align-items:flex-end;height:60px;}
.fr-serial-bar{flex:1;background:var(--dim);transition:height 0.3s;min-width:0;position:relative;}
.fr-serial-bar.recalled{background:var(--ok);}
.fr-serial-labels{display:flex;gap:4px;margin-top:4px;}
.fr-serial-lbl{flex:1;text-align:center;font-size:0.85rem;color:var(--dim);min-width:0;}
.fr-serial-title{font-size:0.75rem;color:var(--dim);letter-spacing:0.1em;margin-bottom:4px;}

/* ── CARD SORT (WCST) ── */
#wcstScreen{display:none;flex-direction:column;align-items:center;justify-content:center;gap:16px;position:relative;padding:10px 20px;min-height:100%;width:100%;box-sizing:border-box;}
.wcst-header{display:flex;gap:28px;align-items:center;font-size:0.88rem;color:var(--dim);}
.wcst-label{color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;}
.wcst-rule-hint{font-size:0.78rem;color:var(--dim);letter-spacing:0.08em;min-height:14px;text-align:center;}
/* target row */
.wcst-targets{display:flex;gap:16px;justify-content:center;}
/* stimulus row */
.wcst-stimulus-wrap{display:flex;flex-direction:column;align-items:center;gap:8px;}
.wcst-stim-label{font-size:0.75rem;color:var(--dim);letter-spacing:0.12em;}
/* card */
.wcst-card{width:80px;height:100px;border:2px solid #2a4060;background:#0a1620;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;cursor:pointer;transition:border-color 0.12s,background 0.12s;user-select:none;flex-shrink:0;}
.wcst-card:hover{border-color:#3a6080;}
.wcst-card.selectable:hover{border-color:var(--gold);background:#1a1200;}
.wcst-card.flash-ok{border-color:var(--ok)!important;background:#061a10!important;}
.wcst-card.flash-err{border-color:var(--err)!important;background:#1a0608!important;}
.wcst-card.stimulus{border-color:#3a5070;cursor:default;}
.wcst-card-shape{font-size:2.2rem;line-height:1;}
.wcst-card-num{font-size:0.72rem;letter-spacing:0.1em;color:var(--dim);}
.wcst-card-color-dot{width:10px;height:10px;border-radius:50%;}
/* shape colours */
.wcst-c-red .wcst-card-shape{color:#e05c5c;} .wcst-c-red .wcst-card-color-dot{background:#e05c5c;}
.wcst-c-green .wcst-card-shape{color:#4ec994;} .wcst-c-green .wcst-card-color-dot{background:#4ec994;}
.wcst-c-blue .wcst-card-shape{color:#5b9fda;} .wcst-c-blue .wcst-card-color-dot{background:#5b9fda;}
.wcst-c-yellow .wcst-card-shape{color:#c8a84b;} .wcst-c-yellow .wcst-card-color-dot{background:#c8a84b;}
/* feedback/persev strip */
.wcst-fb-row{display:flex;gap:20px;font-size:0.85rem;color:var(--dim);min-height:18px;}
.wcst-fb-row span{color:var(--text);}
.wcst-persev-strip{display:flex;gap:3px;flex-wrap:wrap;max-width:380px;min-height:14px;}
.wcst-persev-dot{width:8px;height:8px;border-radius:50%;background:#1a2f44;}
.wcst-persev-dot.ok{background:var(--ok);}
.wcst-persev-dot.err{background:var(--err);}
.wcst-persev-dot.persev{background:var(--gold);}

/* ── STATS CHART ── */
#statsScreen{display:none;flex-direction:column;align-items:center;gap:0;width:100%;height:100%;overflow-y:auto;padding:30px 40px;}
.stats-wrap{max-width:620px;width:100%;display:flex;flex-direction:column;gap:28px;}
.stats-title{font-family:'EB Garamond',serif;font-size:1.6rem;letter-spacing:0.25em;color:var(--gold);}
.stats-divider{border:none;border-top:1px solid #1a2f44;}
.stats-section{display:flex;flex-direction:column;gap:10px;}
.stats-section-title{font-size:0.78rem;letter-spacing:0.18em;color:var(--dim);}
.stats-cards{display:flex;gap:10px;flex-wrap:wrap;}
.stats-card{background:#0a1620;border:1px solid #1a2f44;padding:10px 14px;display:flex;flex-direction:column;gap:4px;min-width:100px;}
.stats-card-label{font-size:0.75rem;color:var(--dim);letter-spacing:0.08em;}
.stats-card-value{font-size:1.2rem;font-family:'EB Garamond',serif;color:var(--text);}
.stats-card-sub{font-size:0.72rem;color:var(--dim);}
/* bar chart */
.stats-bar-chart{display:flex;flex-direction:column;gap:6px;}
.stats-bar-row{display:flex;align-items:center;gap:8px;font-size:0.8rem;color:var(--dim);}
.stats-bar-label{width:90px;flex-shrink:0;text-align:right;letter-spacing:0.06em;}
.stats-bar-track{flex:1;height:16px;background:#0a1620;border:1px solid #1a2f44;position:relative;}
.stats-bar-fill{height:100%;background:var(--gold);transition:width 0.4s;}
.stats-bar-fill.ok{background:var(--ok);}
.stats-bar-fill.err{background:var(--err);}
.stats-bar-val{position:absolute;right:4px;top:50%;transform:translateY(-50%);font-size:0.75rem;color:var(--text);}
/* RT scatter dots */
.stats-scatter{display:flex;gap:3px;flex-wrap:wrap;align-items:flex-end;height:64px;padding:2px 0;}
.stats-dot{width:6px;border-radius:1px;background:var(--gold);opacity:0.7;transition:height 0.3s;}
.stats-dot.err{background:var(--err);}
.stats-no-data{font-size:0.82rem;color:var(--dim);letter-spacing:0.08em;font-style:italic;}


/* ── STERNBERG (STB) ── */
#stbScreen{display:none;flex-direction:column;align-items:center;gap:14px;padding:10px 0;width:100%;}
.stb-header{display:flex;gap:28px;align-items:center;font-size:0.88rem;color:var(--dim);}
.stb-label{color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;}
.stb-arena{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;min-height:180px;}
.stb-letter{font-family:'EB Garamond',serif;font-size:5rem;color:var(--gold2);width:100px;height:96px;line-height:96px;text-align:center;display:block;}
.stb-phase-label{font-size:0.75rem;letter-spacing:0.18em;color:var(--dim);text-align:center;}
.stb-phase-label.study{color:var(--gold);}
.stb-phase-label.probe{color:#5b9fda;}
.stb-phase-label.isi{color:var(--dim);}
.stb-resp-row{display:flex;gap:20px;align-items:center;}
.stb-resp-btn{width:90px;padding:10px 0;border:2px solid #2a4060;background:none;color:#8ab;font-family:'Source Code Pro',monospace;font-size:0.75rem;cursor:pointer;letter-spacing:0.1em;transition:all 0.12s;}
.stb-resp-btn:hover{border-color:var(--gold);color:var(--gold);}
.stb-resp-btn.yes:hover{border-color:var(--ok);color:var(--ok);}
.stb-resp-btn.no:hover{border-color:var(--err);color:var(--err);}
.stb-resp-btn:disabled{opacity:0.25;cursor:default;}

/* ── VISUAL RECOGNITION (VRT) ── */
#vrtScreen{display:none;flex-direction:column;align-items:center;gap:14px;position:relative;padding:10px 0;width:100%;}
.vrt-header{display:flex;gap:28px;align-items:center;font-size:0.88rem;color:var(--dim);}
.vrt-label{color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;}

/* study grid */
.vrt-study-wrap{display:flex;flex-direction:column;align-items:center;gap:10px;}
.vrt-grid{display:grid;gap:8px;}
.vrt-grid.g3{grid-template-columns:repeat(3,88px);}
.vrt-grid.g4{grid-template-columns:repeat(4,88px);}
.vrt-grid.g2{grid-template-columns:repeat(2,88px);}
.vrt-cell{width:88px;height:88px;border:1px solid #1e3040;background:#0a1620;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;transition:border-color 0.1s,background 0.1s;}
.vrt-cell canvas{width:88px;height:88px;display:block;}
.vrt-cell.selectable{cursor:pointer;}
.vrt-cell.selectable:hover{border-color:#3a6080;}
.vrt-cell.target-seen{border-color:var(--gold2);background:#181000;}
.vrt-cell.flash-ok{border-color:var(--ok)!important;background:#061a10!important;}
.vrt-cell.flash-err{border-color:var(--err)!important;background:#1a0608!important;}
.vrt-cell.was-target{border-color:#2a5020;background:#061208;}

/* countdown ring */
.vrt-countdown{position:relative;width:48px;height:48px;}
.vrt-countdown svg{position:absolute;top:0;left:0;}
.vrt-countdown-text{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:0.88rem;color:var(--dim);}

/* phase label */
.vrt-phase{font-size:0.75rem;letter-spacing:0.18em;color:var(--dim);text-align:center;}
.vrt-phase.study{color:var(--gold);}
.vrt-phase.test{color:#5b9fda;}
.vrt-phase.isi{color:var(--dim);}

/* recognition test foils/targets */
.vrt-test-wrap{display:flex;flex-direction:column;align-items:center;gap:10px;}
.vrt-test-question{font-size:0.82rem;color:var(--dim);letter-spacing:0.1em;text-align:center;}
.vrt-test-grid{display:grid;gap:10px;}
.vrt-test-grid.pair{grid-template-columns:repeat(2,110px);}
.vrt-test-cell{width:110px;height:110px;border:2px solid #2a4060;background:#0a1620;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:border-color 0.12s,background 0.12s;position:relative;overflow:hidden;}
.vrt-test-cell canvas{width:110px;height:110px;display:block;}
.vrt-test-cell:hover{border-color:var(--gold);background:#181000;}
.vrt-test-cell.flash-ok{border-color:var(--ok)!important;background:#061a10!important;pointer-events:none;}
.vrt-test-cell.flash-err{border-color:var(--err)!important;background:#1a0608!important;pointer-events:none;}

/* results */
.vrt-results-wrap{display:flex;flex-direction:column;align-items:center;gap:18px;max-width:500px;width:100%;}
.vrt-results-title{font-family:'EB Garamond',serif;font-size:1.2rem;letter-spacing:0.2em;color:var(--gold);}
.vrt-metrics{display:flex;gap:24px;font-size:0.88rem;color:var(--dim);}
.vrt-metrics span{color:var(--text);}
.vrt-results-grid{display:grid;gap:4px;}
.vrt-result-row{display:flex;gap:8px;align-items:center;font-size:0.78rem;color:var(--dim);}
.vrt-mini-canvas{width:36px;height:36px;border:1px solid #1a2f44;flex-shrink:0;}
.vrt-result-label{flex:1;}
.vrt-result-badge{padding:1px 7px;border:1px solid #2a4060;font-size:0.72rem;letter-spacing:0.08em;}
.vrt-result-badge.ok{border-color:var(--ok);color:var(--ok);}
.vrt-result-badge.err{border-color:var(--err);color:var(--err);}
.vrt-rt-val{color:#4a6a8a;width:56px;text-align:right;}


/* ── KEYBOARD LEGEND ── */
.key-legend{display:flex;gap:16px;flex-wrap:wrap;align-items:center;justify-content:center;padding:6px 12px;border-top:1px solid #1a2f44;background:#080f18;font-size:0.75rem;color:var(--dim);letter-spacing:0.06em;min-height:28px;}
.key-legend-item{display:flex;align-items:center;gap:5px;}
.key-cap{display:inline-flex;align-items:center;justify-content:center;min-width:22px;height:18px;padding:0 5px;border:1px solid #2a4060;border-bottom:2px solid #1a2f44;border-radius:3px;background:#0a1620;color:var(--text);font-family:'Source Code Pro',monospace;font-size:0.75rem;letter-spacing:0;}
.key-legend-sep{color:#1a2f44;}

/* ── P300 auditory arena layout (was unstyled → content jammed left & legend
      overflowed; this centres the arena, lays the freq row out horizontally,
      and keeps everything within the screen width) ── */
.p300-arena{display:flex;flex-direction:column;align-items:center;gap:18px;max-width:560px;width:100%;margin:0 auto;text-align:center;}
.p300-freq-row{display:flex;gap:28px;flex-wrap:wrap;justify-content:center;align-items:center;font-size:0.9rem;color:var(--dim);letter-spacing:0.08em;}
.p300-freq-row span{color:var(--gold);}
.p300-hint{font-size:0.82rem;color:var(--dim);letter-spacing:0.1em;text-align:center;}
.p300-stim-circle{font-size:2.4rem;color:var(--text);min-height:60px;display:flex;align-items:center;justify-content:center;}
/* Key legend sits at the foot of the screen, centred, never wider than the view */
#p300Screen > .key-legend{max-width:100%;box-sizing:border-box;align-self:stretch;}
/* CSR (contrast reversal) arena — was also unstyled */
.csr-arena{display:flex;flex-direction:column;align-items:center;gap:14px;max-width:100%;margin:0 auto;}
.csr-arena canvas{max-width:90vw;height:auto;}
.csr-hint{font-size:0.82rem;color:var(--dim);letter-spacing:0.1em;text-align:center;}
/* CSR canvas overlay (trial/phase readout) — centre it over the arena */
.csr-overlay{display:flex;flex-direction:column;align-items:center;gap:4px;text-align:center;font-size:0.8rem;color:var(--dim);}
/* Task Editor — centred card matching the rest of the UI (siblings are styled,
   but the outer wrap + fields holder had no rule, so they spanned left) */
.editor-wrap{display:flex;flex-direction:column;align-items:center;gap:12px;max-width:640px;width:100%;margin:0 auto;padding:24px;box-sizing:border-box;}
.editor-fields{display:flex;flex-direction:column;gap:10px;width:100%;}

/* ── ADAPTIVE ITI + RT CHART ── */
.rt-chart-wrap{display:flex;flex-direction:column;gap:4px;align-items:flex-start;width:370px;}
.rt-chart-header{display:flex;justify-content:space-between;width:100%;font-size:0.75rem;color:var(--dim);letter-spacing:0.08em;}
.rt-chart-header span{color:var(--text);}
#rtChartCanvas{width:370px;height:54px;display:block;}
.adaptive-badge{font-size:0.72rem;padding:2px 8px;border:1px solid #1a4028;color:#2a6040;letter-spacing:0.1em;align-self:flex-end;}
.adaptive-badge.active{border-color:#2a5040;color:var(--ok);}
/* ── PHOTOCELL TRIGGER BAR ── */
/* Trigger square: lives in bottom-right of .main */
#trigger-bar{
  position:fixed;
  bottom:0; right:0;
  width:60px; height:60px;
  background:#000;
  z-index:500;
  pointer-events:none;
  transition:none;
  display:none;
}
#trigger-bar.armed{display:block;}
#trigger-bar.flash{background:#fff;}

/* Sidebar trigger panel */
.tp-section{display:flex;flex-direction:column;gap:6px;padding:10px 0 0 0;}
.tp-section-title{font-size:0.72rem;letter-spacing:0.2em;color:var(--dim);text-transform:uppercase;margin-bottom:2px;}
.tp-row{display:flex;justify-content:space-between;align-items:center;gap:6px;font-size:0.78rem;color:var(--dim);}
.tp-label{font-size:0.72rem;letter-spacing:0.12em;text-transform:uppercase;color:var(--dim);}
.tp-val{color:var(--text);font-family:'Source Code Pro',monospace;font-size:0.8rem;min-width:28px;text-align:right;}
.tp-row input[type=range]{flex:1;accent-color:#c8a84b;height:3px;}
.tp-toggle{cursor:pointer;padding:2px 7px;border:1px solid #2a4060;color:var(--dim);font-size:0.72rem;letter-spacing:0.1em;background:transparent;transition:all .15s;font-family:'Source Code Pro',monospace;}
.tp-toggle:hover{border-color:#c8a84b;color:#c8a84b;}
.tp-toggle.active{border-color:#3dd68c;color:#3dd68c;}
.tp-flash-note{font-size:0.88rem;color:#1a2f44;line-height:1.5;}


/* ── MEDIA PLAYER ── */
#scr-media{flex-direction:column;background:#000;}

.mp-drop{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;width:100%;height:100%;
  border:2px dashed rgba(100,160,200,0.2);
  margin:0;cursor:pointer;transition:border-color .2s;
  position:relative;
}
.mp-drop:hover,.mp-drop.over{border-color:rgba(200,168,75,0.5);}
.mp-drop-icon{font-size:2.4rem;color:rgba(100,160,200,0.3);}
.mp-drop-txt{font-size:.68rem;color:rgba(100,160,200,0.4);letter-spacing:.18em;text-transform:uppercase;}
.mp-drop-sub{font-size:.55rem;color:rgba(58,90,116,0.8);letter-spacing:.1em;}
.mp-drop input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%;}

.mp-main{display:flex;flex-direction:column;width:100%;height:100%;position:relative;}
.mp-video-wrap{flex:1;display:flex;align-items:center;justify-content:center;background:#000;overflow:hidden;position:relative;}
#mp-video{max-width:100%;max-height:100%;outline:none;display:block;}
#mp-audio-vis{
  width:100%;height:100%;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle at 50% 50%, #0a1824 0%, #060d14 70%);
}
.mp-audio-icon{font-size:4rem;color:rgba(200,168,75,0.2);pointer-events:none;}
.mp-audio-title{position:absolute;bottom:80px;left:50%;transform:translateX(-50%);
  font-size:.75rem;color:rgba(200,168,75,0.5);letter-spacing:.15em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:80%;}

.mp-controls{
  flex-shrink:0;height:64px;background:rgba(10,20,30,0.95);
  border-top:1px solid rgba(100,160,200,0.1);
  display:flex;flex-direction:column;justify-content:center;padding:0 16px;gap:4px;
}
.mp-seek{
  width:100%;height:4px;background:rgba(100,160,200,0.12);border-radius:2px;
  cursor:pointer;appearance:none;outline:none;margin:0;
}
.mp-seek::-webkit-slider-thumb{
  appearance:none;width:12px;height:12px;border-radius:50%;
  background:var(--gold);cursor:pointer;margin-top:-4px;
}
.mp-seek::-webkit-slider-runnable-track{height:4px;border-radius:2px;background:rgba(100,160,200,0.12);}
.mp-btn-row{display:flex;align-items:center;gap:10px;}
.mp-btn{
  background:none;border:none;color:rgba(200,168,75,0.7);
  font-size:1rem;cursor:pointer;padding:2px 6px;border-radius:2px;
  transition:color .15s;line-height:1;
}
.mp-btn:hover{color:var(--gold2);}
.mp-btn.big{font-size:1.4rem;}
.mp-time{font-size:.62rem;color:rgba(100,160,200,0.5);letter-spacing:.06em;font-family:'Courier New',monospace;min-width:90px;}
.mp-vol-row{display:flex;align-items:center;gap:6px;margin-left:auto;}
.mp-vol{width:70px;height:3px;appearance:none;background:rgba(100,160,200,0.15);border-radius:2px;cursor:pointer;outline:none;}
.mp-vol::-webkit-slider-thumb{appearance:none;width:10px;height:10px;border-radius:50%;background:rgba(200,168,75,0.6);cursor:pointer;}
.mp-fname{font-size:.55rem;color:rgba(58,90,116,0.7);letter-spacing:.08em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:200px;}
.mp-trig-badge{
  font-size:.5rem;letter-spacing:.12em;text-transform:uppercase;
  padding:2px 7px;border-radius:1px;
  border:1px solid rgba(61,214,140,0.3);color:rgba(61,214,140,0.6);
  cursor:pointer;transition:all .15s;
}
.mp-trig-badge:hover{border-color:rgba(61,214,140,0.8);color:#3dd68c;}
.mp-trig-badge.off{border-color:rgba(58,90,116,0.3);color:rgba(58,90,116,0.5);}
.mp-open-btn{
  padding:4px 10px;font-size:.55rem;letter-spacing:.12em;text-transform:uppercase;
  border:1px solid rgba(100,160,200,0.2);background:transparent;
  color:rgba(100,160,200,0.5);cursor:pointer;border-radius:2px;transition:all .15s;
  position:relative;overflow:hidden;
}
.mp-open-btn:hover{border-color:var(--gold);color:var(--gold2);}
.mp-open-btn input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%;}

/* ─────────────────────────────────────────────────────────────
   ADDITIONAL ANIMATIONS — non-destructive, layered on top.
   All animations respect prefers-reduced-motion. Existing transitions
   and hover rules are preserved; these only add motion where there
   was none, or layer a subtle entrance/click feedback on top.
   ───────────────────────────────────────────────────────────── */

/* Tile hover lift — subtle translate + shadow, complements the existing
   border/color transition without changing it. */
.task-tile {
  transform: translateY(0);
  box-shadow: 0 0 0 rgba(212,180,86,0);
  transition: all 0.2s, transform 0.18s ease-out, box-shadow 0.25s ease-out;
}
.task-tile:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 14px -4px rgba(212,180,86,0.18), 0 2px 4px -2px rgba(0,0,0,0.4);
}
.task-tile:active {
  transform: translateY(0) scale(0.98);
  transition: transform 0.08s ease-in;
}

/* Task icon hover bounce — soft scale-up so the symbol feels reactive */
.task-tile .task-icon {
  display: inline-block;
  transition: transform 0.25s cubic-bezier(0.34, 1.4, 0.64, 1);
}
.task-tile:hover .task-icon {
  transform: scale(1.12);
}

/* Staggered entrance for task tiles in any grid — uses a CSS-only animation.
   Each tile delays its fade-in by --i × 30ms, set via inline style if present,
   otherwise falls back to a default short delay. */
@keyframes tileFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.task-select-grid .task-tile {
  animation: tileFadeIn 0.42s ease-out backwards;
  animation-delay: calc(var(--i, 0) * 30ms);
}

/* Category-heading entrance — small slide-in from the left, since the heading
   already has a left border. Done once on page load. */
@keyframes sectionFadeIn {
  from { opacity: 0; transform: translateX(-6px); }
  to   { opacity: 1; transform: translateX(0); }
}
.grid-section-label {
  animation: sectionFadeIn 0.5s ease-out backwards;
}

/* Intro-screen rule list — fade each rule in sequence after intro opens.
   The intro-rule items already have `class="intro-rule"`; piggyback. */
@keyframes ruleFadeIn {
  from { opacity: 0; transform: translateX(-4px); }
  to   { opacity: 1; transform: translateX(0); }
}
.intro-rule {
  animation: ruleFadeIn 0.35s ease-out backwards;
}
.intro-rule:nth-child(1) { animation-delay: 0.05s; }
.intro-rule:nth-child(2) { animation-delay: 0.10s; }
.intro-rule:nth-child(3) { animation-delay: 0.15s; }
.intro-rule:nth-child(4) { animation-delay: 0.20s; }
.intro-rule:nth-child(5) { animation-delay: 0.25s; }
.intro-rule:nth-child(6) { animation-delay: 0.30s; }
.intro-rule:nth-child(7) { animation-delay: 0.35s; }
.intro-rule:nth-child(8) { animation-delay: 0.40s; }

/* Intro screen title glow on first appearance — extremely subtle. */
@keyframes titleGlow {
  0%, 100% { text-shadow: 0 0 0 rgba(212,180,86,0); }
  50%      { text-shadow: 0 0 18px rgba(212,180,86,0.25); }
}
#introTaskName {
  animation: titleGlow 2.2s ease-in-out 0.3s 1;
}

/* Intro-screen action buttons — gentle hover lift */
.intro-btn {
  transition: all 0.18s ease-out, transform 0.18s ease-out;
}
.intro-btn:hover {
  transform: translateY(-1px);
}
.intro-btn:active {
  transform: translateY(0);
  transition: transform 0.08s;
}

/* Respect users with reduced-motion preference — clinical/research app users
   may need this. Disable all animations, keep state changes instant. */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .task-tile:hover,
  .task-tile:active,
  .intro-btn:hover,
  .intro-btn:active {
    transform: none !important;
  }
}

</style>
</head>
<body>

<!-- ═══════════════════════════════ SIDEBAR ═══════════════════════════ -->
<div class="sidebar">
  <div class="sidebar-title">SR · COGNOS</div>
  <a class='sidebar-btn' href='/' style='display:block;text-decoration:none;margin-bottom:0.6rem;' title='Return to Sands Research home page'>← Home</a>
  <div class="info-row" title="Current task name">TASK <span id="si-task">—</span></div>
  <div class="info-row" title="Current trial number / total trials">TRIAL <span id="si-trial">—</span></div>
  <div class="info-row" title="Response accuracy — correct responses / total responded">ACC <span id="si-acc">—</span></div>
  <div class="info-row" title="Average reaction time in milliseconds (responded trials only)">AVG RT <span id="si-rt">—</span></div>
  <div class="info-row si-stat" title="Hit count — correct detections of Go / target stimuli">HITS <span id="si-hits">—</span></div>
  <div class="info-row si-stat" title="False alarm count — responses to No-Go / non-target stimuli">FA <span id="si-fa">—</span></div>
  <div class="info-row si-stat" id="si-dprime-row" style="display:none" title="d′ (d-prime) — signal-detection sensitivity: z(hit rate) − z(false-alarm rate). Higher = better target/non-target discrimination. Uses log-linear (½) correction for extreme rates.">d′ <span id="si-dprime">—</span></div>
  <div class="info-row si-stat" id="si-beta-row" style="display:none" title="β (beta) — signal-detection response bias: exp((z(FAR)² − z(HR)²)/2). β&gt;1 conservative (favours withholding), β&lt;1 liberal (favours responding), β≈1 neutral.">β <span id="si-beta">—</span></div>
  <div class="info-row si-stat" id="si-condA-row" style="display:none" title="Mean RT for the first condition (correct responses)"><span id="si-condA-lbl">COND A RT</span> <span id="si-condA">—</span></div>
  <div class="info-row si-stat" id="si-condB-row" style="display:none" title="Mean RT for the second condition (correct responses)"><span id="si-condB-lbl">COND B RT</span> <span id="si-condB">—</span></div>
  <div class="info-row si-stat" id="si-valid-row" style="display:none" title="Mean RT on validly cued trials (Posner)">VALID RT <span id="si-valid">—</span></div>
  <div class="info-row si-stat" id="si-invalid-row" style="display:none" title="Mean RT on invalidly cued trials (Posner) — slower than valid reveals attentional cost">INVALID RT <span id="si-invalid">—</span></div>
  <div class="info-row si-stat" id="si-neutral-row" style="display:none" title="Mean RT on neutral (uncued) trials (Posner)">NEUTRAL RT <span id="si-neutral">—</span></div>
  <hr class="sep">
  <div class="input-panel">
    <div class="sp-label">INPUT MODE</div>
    <div class="input-mode-row">
      <button class="imode-btn active" id="im-keyboard" onclick="setInputMode('keyboard')" title="Respond using keyboard keys (F / J / SPACE)">KEYBOARD</button>
      <button class="imode-btn" id="im-mouse" onclick="setInputMode('mouse')" title="Respond using left / right mouse button">MOUSE</button>
      <button class="imode-btn" id="im-voice" onclick="setInputMode('voice')" title="Respond by speaking — requires microphone access">VOICE</button>
    </div>
    <div class="mouse-indicator" id="mouseIndicator" style="display:none">
      <div class="mouse-btn-icon" id="mbi-left">L</div>
      <div class="mouse-btn-icon" id="mbi-right">R</div>
      <span style="font-size:0.75rem;color:var(--dim)">L=yes/go &nbsp; R=no/nogo</span>
    </div>
  </div>
  <div style="display:flex;align-items:center;gap:8px;font-size:0.78rem;color:var(--dim);">
    <label class="toggle-switch" title="Adaptive inter-trial interval — automatically shortens ISI after fast trials and lengthens it after slow trials to stabilise response pressure">
      <input type="checkbox" id="adaptiveToggle" checked onchange="ADAPT.enabled=this.checked;adaptUpdateBadge()">
      <div class="toggle-track"></div><div class="toggle-thumb"></div>
    </label>
    <span title="Adaptive inter-trial interval — automatically shortens ISI after fast trials and lengthens it after slow trials to stabilise response pressure">Adaptive ITI</span>
  </div>
  <div style="display:flex;align-items:center;gap:8px;font-size:0.78rem;color:var(--dim);">
    <label class="toggle-switch" title="On page load, jump straight to the last task you opened instead of the tile menu. Useful when repeatedly testing one task.">
      <input type="checkbox" id="autoResumeToggle" onchange="try{localStorage.setItem('cognosAutoResume',this.checked?'1':'0');}catch(_){}">
      <div class="toggle-track"></div><div class="toggle-thumb"></div>
    </label>
    <span title="On page load, jump straight to the last task you opened instead of the tile menu. Useful when repeatedly testing one task.">Auto-resume last task</span>
  </div>
  <div class="speech-panel">
    <div class="sp-label">SPEECH MODULE</div>
    <div class="sp-row">
      <button class="mic-btn" id="micBtn" title="Toggle microphone on / off for voice response mode" onclick="toggleMic()">🎙</button>
      <span class="speech-status" id="speechStatus">off</span>
      <div class="vol-bar">
        <span id="vb0" style="height:4px"></span><span id="vb1" style="height:4px"></span>
        <span id="vb2" style="height:4px"></span><span id="vb3" style="height:4px"></span>
        <span id="vb4" style="height:4px"></span>
      </div>
    </div>
    <div class="transcript-box" id="transcriptBox" title="Last recognised speech — shown here for confirmation">—</div>
    <div class="sp-toggle-row">
      <label class="toggle-switch" title="Text-to-speech readback — reads each stimulus aloud; useful for voice-only sessions">
        <input type="checkbox" id="ttsToggle" onchange="Speech.ttsOn=this.checked">
        <div class="toggle-track"></div><div class="toggle-thumb"></div>
      </label>
      <span style="font-size:0.78rem;color:var(--dim)" title="Text-to-speech readback — reads each stimulus aloud; useful for voice-only sessions">TTS readback</span>
    </div>
    <div style="font-size:0.75rem;color:var(--dim);line-height:1.6">say: <span style="color:#4a6a8a">go · yes · no · match · same · different · [recall: speak words freely]</span></div>
  </div>
  <hr class="sep">
  <div class="sidebar-title" style="font-size:0.6rem;margin-bottom:4px;">SESSION</div>
  <div class="info-row" title="Tasks completed this session">DONE <span id="si-session-count">0</span></div>
  <div class="info-row" title="Last completed task score">LAST <span id="si-session-last">—</span></div>
  <hr class="sep">
  <button class="sidebar-btn" id="exportBtn" onclick="exportCSV()" disabled title="Download the current task's trial-by-trial data as a CSV file">⬇ EXPORT CSV</button>
  <button class="sidebar-btn" onclick="purgeAllResults()" style="border-color:rgba(200,80,80,0.45);color:#e06b6b;" title="Purge ALL stored results and practice marks from this device (saved participants are not affected). Cannot be undone.">🗑 PURGE RESULTS</button>
  <button class="sidebar-btn" id="customAudioSidebarBtn" onclick="CustomAudio.openPanel()" style="border-color:rgba(212,180,86,0.45);color:var(--gold);" title="Custom Audio — load WAV files into auditory-task stimulus slots (P300, MMN, P3A, N100, P50, ABR, ASSR, Stop, ORN, MMN-S, LDAEP, SPR-A). Files persist across sessions.">♬ CUSTOM AUDIO</button>
  <button class="sidebar-btn" id="customImagesSidebarBtn" onclick="CustomImages.openPanel()" style="border-color:rgba(212,180,86,0.45);color:var(--gold);" title="Custom Images — load image pool for the visual Serial Probe Recognition task. Falls back to procedural shape stimuli if empty.">⚛ CUSTOM IMAGES</button>
  <button class="sidebar-btn" onclick="resetAll()" title="Stop the current task and return to the task selection home screen">↩ RESET</button>
  <button class="sidebar-btn" id="cognosTestsSidebarBtn" onclick="if(window.runCognosTests)window.runCognosTests()" style="border-color:rgba(212,165,32,0.45);color:var(--gold);" title="Run the in-page battery self-test (structural checks across all tasks, languages, dispatch, and export)">▶ TESTS</button>
  <hr class="sep">
  <div class="tp-section">
    <div class="tp-section-title" title="Photocell trigger — a white square flashes on stimulus onset so an external photocell can send a precise hardware trigger to your EEG amplifier">⬡ Photocell Trigger</div>
    <div class="tp-row">
      <span class="tp-label">ENABLE</span>
      <button class="tp-toggle active" id="trigger-enable-btn" onclick="triggerToggle()" title="Enable / disable the photocell trigger square">ON</button>
    </div>
    <div class="tp-row">
      <span class="tp-label" title="Physical size of the trigger square in pixels">SIZE</span>
      <input type="range" id="trigger-size" min="20" max="120" value="60" oninput="triggerResize(this.value)" title="Drag to resize the photocell trigger square (20–120 px)">
      <span class="tp-val" id="trigger-size-val">60</span>
    </div>
    <div class="tp-row">
      <span class="tp-label" title="Duration the trigger square stays white on each stimulus onset">DUR ms</span>
      <input type="range" id="trigger-dur" min="16" max="200" value="50" oninput="triggerDurChange(this.value)" title="Drag to set trigger flash duration in milliseconds (16–200 ms)">
      <span class="tp-val" id="trigger-dur-val">50</span>
    </div>
    <div class="tp-row">
      <button class="tp-toggle" onclick="triggerTest()" style="width:100%;text-align:center;margin-top:2px;" title="Fire a single test flash — place your photocell on the square and verify the signal in your amplifier software">▶ TEST FLASH</button>
    </div>
    <div class="tp-flash-note">Flashes on stimulus onset.<br>Place photocell on square.</div>
  </div>
  <hr class="sep">
  <div class="log-area" id="logArea" title="Live trial log — green = correct, red = error, T/O = timeout"></div>
</div>

<!-- ═══════════════════════════════ MAIN ═══════════════════════════════ -->
<div class="main" id="mainArea">

  <!-- PRE-TASK COUNTDOWN OVERLAY (3·2·1 before stimuli begin) -->
  <div id="cognosCountdown" style="display:none;position:absolute;inset:0;z-index:150;background:#060d14;align-items:center;justify-content:center;flex-direction:column;gap:18px;">
    <div id="cognosCountdownLabel" style="font-family:'EB Garamond',serif;font-size:1.1rem;letter-spacing:0.3em;color:var(--gold);opacity:0.7;text-transform:uppercase;">Get ready</div>
    <div id="cognosCountdownNum" style="font-family:'EB Garamond',serif;font-size:6rem;line-height:1;color:var(--gold);font-weight:600;min-height:6rem;"></div>
  </div>

  <!-- PHOTOCELL TRIGGER SQUARE -->
  <div id="trigger-bar"></div>


  <!-- HOME -->
  <!-- ═══════ PARTICIPANT QUESTIONNAIRE (session intake gate) ═══════ -->
  <div id="participantScreen" style="display:none;flex-direction:column;align-items:center;justify-content:flex-start;min-height:100vh;padding:48px 20px;gap:18px;overflow-y:auto;">
    <div style="width:100%;max-width:480px;">
      <div class="home-title" style="text-align:center;">COGNOS GRID</div>
      <div class="home-sub" style="margin-top:6px;text-align:center;letter-spacing:0.16em;">PARTICIPANT SESSION INTAKE</div>
      <div style="font-size:0.8rem;color:var(--dim);text-align:center;margin:14px 0 24px;line-height:1.6;">
        Complete this short form to begin a session. These details are stored locally on this device and attached to every task result and export. No data leaves the browser.
      </div>
      <div id="pqError" style="display:none;color:#e06b6b;font-size:0.8rem;text-align:center;margin-bottom:12px;"></div>

      <div id="pqRecallWrap" style="display:none;margin-bottom:18px;padding:12px 14px;border:1px solid rgba(212,180,86,0.35);border-radius:3px;background:rgba(10,21,32,0.5);">
        <div style="font-size:0.74rem;letter-spacing:0.1em;color:var(--gold);font-family:'Source Code Pro',monospace;text-transform:uppercase;margin-bottom:8px;">↺ Recall saved participant</div>
        <div style="display:flex;gap:8px;align-items:center;">
          <select id="pq-recall" class="pq-input" style="flex:1;" onchange="participantRecallPick(this.value)">
            <option value="">— select a saved participant —</option>
          </select>
          <button type="button" onclick="participantRecallDelete()" title="Delete the selected participant from this device" style="background:none;border:1px solid #5a3030;color:#e06b6b;font-family:'Source Code Pro',monospace;font-size:0.74rem;padding:8px 10px;cursor:pointer;border-radius:3px;white-space:nowrap;">✕ Delete</button>
        </div>
        <div style="font-size:0.68rem;color:var(--dim);margin-top:6px;">Stored locally on this device only. Selecting one fills the form below — a new session ID is generated each time you begin.</div>
      </div>

      <div style="display:flex;flex-direction:column;gap:14px;">
        <label class="pq-field"><span class="pq-label">Participant ID <span style="color:var(--gold)">*</span></span>
          <input id="pq-id" type="text" autocomplete="off" placeholder="e.g. P001 or initials-date" class="pq-input"></label>

        <label class="pq-field"><span class="pq-label">Session label <span class="pq-opt">(optional)</span></span>
          <input id="pq-session" type="text" autocomplete="off" placeholder="e.g. Baseline, Visit 2" class="pq-input"></label>

        <div style="display:flex;gap:12px;">
          <label class="pq-field" style="flex:1;"><span class="pq-label">Age <span class="pq-opt">(years)</span></span>
            <input id="pq-age" type="number" min="0" max="120" autocomplete="off" class="pq-input"></label>
          <label class="pq-field" style="flex:1;"><span class="pq-label">Handedness</span>
            <select id="pq-hand" class="pq-input">
              <option value="">—</option><option value="right">Right</option>
              <option value="left">Left</option><option value="ambi">Ambidextrous</option>
            </select></label>
        </div>

        <label class="pq-field"><span class="pq-label">Sex / gender <span class="pq-opt">(optional)</span></span>
          <select id="pq-sex" class="pq-input">
            <option value="">Prefer not to say</option><option value="female">Female</option>
            <option value="male">Male</option><option value="other">Other / non-binary</option>
          </select></label>

        <label class="pq-field"><span class="pq-label">Education <span class="pq-opt">(highest level completed)</span></span>
          <select id="pq-edu" class="pq-input">
            <option value="">— select —</option>
            <option value="none">None / pre-school</option>
            <option value="primary">Primary / grammar school</option>
            <option value="middle">Middle school</option>
            <option value="high">High school / secondary</option>
            <option value="ged">GED / equivalency</option>
            <option value="vocational">Vocational / trade</option>
            <option value="some_college">Some college (no degree)</option>
            <option value="associate">Associate degree</option>
            <option value="bachelor">Bachelor's degree</option>
            <option value="master">Master's degree</option>
            <option value="professional">Professional (MD, JD, DDS, etc.)</option>
            <option value="doctorate">Doctorate (PhD, EdD, etc.)</option>
            <option value="other">Other</option>
          </select></label>

        <label class="pq-field"><span class="pq-label">Notes <span class="pq-opt">(optional)</span></span>
          <textarea id="pq-notes" rows="2" class="pq-input" style="resize:vertical;" onkeydown="event.stopPropagation();" placeholder="Any session notes (medication, time of day, etc.)"></textarea></label>

        <label style="display:flex;align-items:flex-start;gap:10px;font-size:0.78rem;color:var(--mid);cursor:pointer;margin-top:4px;">
          <input id="pq-consent" type="checkbox" style="margin-top:3px;accent-color:var(--gold);">
          <span>The participant has been informed of the purpose of this session and consents to local recording of their responses. <span style="color:var(--gold)">*</span></span></label>
      </div>

      <div style="display:flex;gap:12px;margin-top:24px;">
        <button class="intro-btn primary" style="flex:1;" onclick="participantStart()">▶ BEGIN SESSION</button>
      </div>
      <div style="text-align:center;margin-top:14px;">
        <button onclick="participantSkip()" style="background:none;border:none;color:var(--dim);font-family:'Source Code Pro',monospace;font-size:0.74rem;letter-spacing:0.08em;cursor:pointer;text-decoration:underline;">Skip — run anonymously</button>
      </div>
    </div>
  </div>

  <div id="home">
    <div style="display:flex;align-items:flex-start;justify-content:space-between;width:100%;max-width:516px;">
      <div>
        <div class="home-title">COGNOS GRID</div>
        <div class="home-sub" style="margin-top:6px">COGNITIVE TASK BATTERY · R20</div>
        <div id="home-participant-line" style="font-size:0.72rem;color:var(--gold);font-family:'Source Code Pro',monospace;letter-spacing:0.06em;margin-top:6px;display:none;"></div>
      </div>
      <div style="display:flex;gap:6px;align-items:center;margin-top:6px;">
        <select id="lang-select" onchange="setLang(this.value)" title="Interface language / Idioma / Sprache" style="background:rgba(10,21,32,0.6);border:1px solid var(--gold);color:var(--gold);font-family:'Source Code Pro',monospace;font-size:0.8rem;letter-spacing:0.08em;padding:4px 24px 4px 10px;cursor:pointer;border-radius:2px;appearance:none;-webkit-appearance:none;-moz-appearance:none;background-image:url(&quot;data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'><path d='M0 0l5 6 5-6z' fill='%23d4b456'/></svg>&quot;);background-repeat:no-repeat;background-position:right 8px center;">
          <option value="en" style="background:#0a1520;color:#d4b456;">EN · English (US)</option>
          <option value="en-GB" style="background:#0a1520;color:#d4b456;">EN · English (UK)</option>
          <option value="es" style="background:#0a1520;color:#d4b456;">ES · Español</option>
          <option value="fr" style="background:#0a1520;color:#d4b456;">FR · Français</option>
          <option value="de" style="background:#0a1520;color:#d4b456;">DE · Deutsch</option>
          <option value="pt" style="background:#0a1520;color:#d4b456;">PT · Português</option>
          <option value="nl" style="background:#0a1520;color:#d4b456;">NL · Nederlands</option>
          <option value="af" style="background:#0a1520;color:#d4b456;">AF · Afrikaans</option>
          <option value="fi" style="background:#0a1520;color:#d4b456;">FI · Suomi</option>
          <option value="ru" style="background:#0a1520;color:#d4b456;">RU · Русский</option>
          <option value="zh" style="background:#0a1520;color:#d4b456;">ZH · 中文</option>
          <option value="ja" style="background:#0a1520;color:#d4b456;">JA · 日本語</option>
          <option value="he" style="background:#0a1520;color:#d4b456;">HE · עברית</option>
          <option value="ar" style="background:#0a1520;color:#d4b456;">AR · العربية</option>
        </select>
        <button onclick="showResultsHistory()" id="btn-results" title="View results history — all recorded task results stored on this device, with export options" style="background:none;border:1px solid var(--gold);color:#d4b456;font-family:'Source Code Pro',monospace;font-size:0.8rem;letter-spacing:0.1em;padding:4px 10px;cursor:pointer;border-radius:2px;margin-left:8px;">📋 RESULTS</button>
        <button onclick="document.getElementById('trigPanel').style.display=document.getElementById('trigPanel').style.display==='block'?'none':'block';" id="btn-trig" title="WebSocket trigger settings for external EEG/MEG synchronization" style="background:none;border:1px solid #2a4060;color:#d4b456;font-family:'Source Code Pro',monospace;font-size:0.8rem;letter-spacing:0.1em;padding:4px 10px;cursor:pointer;border-radius:2px;margin-left:14px;">⚡ TRIG</button>
      </div>
    </div>

    <!-- TRIGGER SETTINGS PANEL (collapsed by default) -->
    <div id="trigPanel" style="display:none;margin:8px 0 14px;padding:12px 14px;border:1px solid rgba(212,180,86,0.35);border-radius:3px;background:rgba(10,21,32,0.6);max-width:680px;">
      <div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;">
        <div style="color:var(--gold);font-family:'Source Code Pro',monospace;font-size:0.78rem;letter-spacing:0.15em;">⚡ NETWORK TRIGGERS · ERP/MEG SYNC</div>
        <div id="trigStatusPill" style="font-family:'Source Code Pro',monospace;font-size:0.62rem;padding:2px 8px;border-radius:10px;background:#5a2222;color:#e6f2e6;">● disconnected</div>
      </div>
      <div style="color:rgba(255,255,255,0.7);font-size:0.72rem;line-height:1.5;margin-bottom:10px;">
        Sends event codes over WebSocket to a local bridge process (which forwards to LSL, parallel port, serial, or UDP). Required for time-locked EEG/MEG recording. <strong style="color:#e08b3b;">Use only with a bridge on the SAME machine or LAN as the EEG amp</strong> — public-internet latency makes ERP timing meaningless.
      </div>
      <div style="display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:8px;">
        <label style="color:var(--dim);font-size:0.72rem;">Bridge URL:
          <input id="trigUrlInput" type="text" value="ws://localhost:7777" style="background:#0a1520;border:1px solid #2a4060;color:#d4b456;padding:3px 6px;border-radius:2px;font-family:'Source Code Pro',monospace;font-size:0.72rem;width:230px;margin-left:6px;">
        </label>
        <button onclick="(function(){var u=document.getElementById('trigUrlInput').value;Trigger.setUrl(u);Trigger.connect(u);})()" style="background:none;border:1px solid var(--gold);color:var(--gold);font-family:'Source Code Pro',monospace;font-size:0.7rem;padding:4px 10px;cursor:pointer;border-radius:2px;">CONNECT</button>
        <button onclick="Trigger.send(0,'test_marker',{source:'manual'})" style="background:none;border:1px solid #2a4060;color:var(--dim);font-family:'Source Code Pro',monospace;font-size:0.7rem;padding:4px 10px;cursor:pointer;border-radius:2px;">SEND TEST (code 0)</button>
        <button onclick="Trigger.exportLog()" style="background:none;border:1px solid #2a4060;color:var(--dim);font-family:'Source Code Pro',monospace;font-size:0.7rem;padding:4px 10px;cursor:pointer;border-radius:2px;">EXPORT LOG</button>
        <label style="color:var(--dim);font-size:0.72rem;display:flex;align-items:center;gap:4px;">
          <input id="trigEnabledChk" type="checkbox" checked onchange="Trigger.setEnabled(this.checked)"> enabled
        </label>
      </div>
      <details style="margin-top:6px;">
        <summary style="cursor:pointer;color:var(--dim);font-size:0.7rem;font-family:'Source Code Pro',monospace;">▸ Standard code reference</summary>
        <div style="margin-top:6px;font-family:'Source Code Pro',monospace;font-size:0.66rem;color:rgba(255,255,255,0.7);line-height:1.6;column-count:2;column-gap:24px;">
          <div>1 — session start</div>
          <div>2 — session end</div>
          <div>10 — block start</div>
          <div>11 — block end</div>
          <div>20 — trial start</div>
          <div>21 — trial end</div>
          <div>30 — fixation onset</div>
          <div>40 — stim onset (generic)</div>
          <div>41 — stim class A (target/oddball/congruent/go)</div>
          <div>42 — stim class B (standard/non-target/incongruent/no-go)</div>
          <div>43 — stim class C (third class)</div>
          <div>50 — response: correct</div>
          <div>51 — response: incorrect</div>
          <div>52 — response: omission</div>
          <div>53 — response: too fast</div>
          <div>60 — feedback: positive</div>
          <div>61 — feedback: negative</div>
          <div>70 — pause / instruction</div>
          <div>99 — artifact marker</div>
        </div>
      </details>
      <details style="margin-top:6px;">
        <summary style="cursor:pointer;color:var(--dim);font-size:0.7rem;font-family:'Source Code Pro',monospace;">▸ Recent triggers (live)</summary>
        <div id="trigRecent" style="margin-top:6px;padding:6px 8px;background:#060d14;border-radius:2px;max-height:160px;overflow-y:auto;"></div>
      </details>
    </div>
    <!-- ── ERP PARADIGMS (featured first) ── -->
    <div class="grid-section-label" style="margin-top:0;border-color:rgba(212,180,86,0.55);background:rgba(212,180,86,0.045);padding:6px 8px;border-left:2px solid var(--gold);" data-en="ERP PARADIGMS" data-en-sub="live brain-wave elicitation · run in your browser" data-es="PARADIGMAS ERP" data-es-sub="potenciales evocados · electrofisiología" data-fr="PARADIGMES ERP" data-fr-sub="potentiels évoqués · électrophysiologie" data-de="ERP-PARADIGMEN" data-de-sub="ereigniskorrelierte Potenziale · Elektrophysiologie" data-zh="ERP范式" data-zh-sub="事件相关电位 · 电生理学" data-ja="ERPパラダイム" data-ja-sub="事象関連電位 · 電気生理学" data-pt="PARADIGMAS ERP" data-pt-sub="potenciais evocados · eletrofisiologia" data-he="פרדיגמות ERP" data-he-sub="עוררות גלי מוח חיים · הפעל בדפדפן" data-ar="نماذج ERP" data-ar-sub="استحضار موجات دماغية حية · يعمل في متصفحك" data-ru="ERP-ПАРАДИГМЫ" data-ru-sub="вызванные потенциалы · электрофизиология">ERP PARADIGMS<span>live brain-wave elicitation · run in your browser</span></div>
    <div style="margin-top:14px;margin-bottom:5px;font-size:0.62rem;font-family:'Source Code Pro',monospace;letter-spacing:0.16em;color:rgba(212,180,86,0.5);border-left:2px solid rgba(212,180,86,0.25);padding-left:8px;">AUDITORY ERPs<span style="color:rgba(138,180,208,0.35);margin-left:10px;font-size:0.58rem;">obligatory · mismatch · language</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="P300" onclick="showIntro('P300')" style="border-color:rgba(212,180,86,0.35);" title="Auditory P300 — odd-ball tone detection; positive peak ~300–500 ms at Pz, largest for rare targets"><span class="task-icon">♪</span>AUDITORY P300</div>
      <div class="task-tile" data-task="MMN" onclick="showIntro('MMN')" style="border-color:rgba(212,180,86,0.35);" title="Mismatch Negativity (tones) — passive auditory oddball; pre-attentive negative deflection 100–250 ms post-deviant"><span class="task-icon">♫</span>MMN</div>
      <div class="task-tile" data-task="ORN" onclick="showIntro('ORN')" title="Object-Related Negativity — fronto-central negativity ~150–250ms to a simultaneous two-tone complex that segregates into two auditory objects; reflects auditory scene analysis and object formation"><span class="task-icon">ORN</span>ORN</div>
      <div class="task-tile" data-task="MMNSP" onclick="showIntro('MMNSP')" style="border-color:rgba(212,180,86,0.35);" title="MMN Speech — passive phoneme contrast (/ba/ standard vs /pa/ deviant); pre-attentive speech MMN used in dyslexia and language development research"><span class="task-icon">🗣</span>MMN SPEECH</div>
      <div class="task-tile" data-task="N400" onclick="showIntro('N400')" style="border-color:rgba(212,180,86,0.35);" title="N400 Semantic Priming — sentence final-word congruency; negative peak ~400 ms for semantic violations"><span class="task-icon">N₄</span>N400</div>
      <div class="task-tile" data-task="PMN" onclick="showIntro('PMN')" title="Phonological Mismatch Negativity — early left-anterior negativity ~270ms to phonological mismatch in spoken words; distinct from semantic N400; reflects phoneme-level lexical access"><span class="task-icon">PMN</span>PMN</div>
      <div class="task-tile" data-task="P600" onclick="showIntro('P600')" style="border-color:rgba(212,180,86,0.35);" title="P600 Syntactic — grammatical violation detection; late positive 500–800 ms, distinct from N400"><span class="task-icon">P₆</span>P600</div>
      <div class="task-tile" data-task="ELAN" onclick="showIntro('ELAN')" style="border-color:rgba(212,180,86,0.35);" title="ELAN — Early Left Anterior Negativity; ultra-early syntactic violation detection 100–200 ms, left anterior scalp, preceding the P600"><span class="task-icon">E</span>ELAN</div>
      <div class="task-tile" data-task="LAN" onclick="showIntro('LAN')" title="Left Anterior Negativity — morphosyntactic violation response ~300–500ms; left-lateralised; dissociates syntactic from semantic processing; distinct from N400; grammar-specific"><span class="task-icon">LAN</span>LAN</div>
      <div class="task-tile" data-task="CPS" onclick="showIntro('CPS')" title="Closure Positive Shift — bilateral positivity at prosodic phrase boundaries in speech; ~200–500ms; reflects intonation phrase parsing; distinct from syntactic and semantic processing"><span class="task-icon">CPS</span>CPS</div>
      <div class="task-tile" data-task="ASSR" onclick="showIntro('ASSR')" style="border-color:rgba(212,180,86,0.35);" title="Auditory Steady-State Response — 40Hz AM tone; brain locks to 40Hz gamma; disrupted in schizophrenia"><span class="task-icon">∿</span>ASSR 40Hz</div>
      <div class="task-tile" data-task="ABR" onclick="showIntro('ABR')" style="border-color:rgba(212,180,86,0.35);" title="Auditory Brainstem Response — click-evoked far-field potentials; waves I–V reflect successive auditory brainstem nuclei; wave V latency is the clinical gold standard for hearing threshold and auditory neuropathy"><span class="task-icon">V</span>ABR</div>
      <div class="task-tile" data-task="N1P2" onclick="showIntro('N1P2')" title="N1-P2 Auditory Evoked Potential — vertex negativity at ~100ms and positivity at ~200ms to tone onset; amplitude modulated by attention, habituation, and arousal; foundational cortical auditory response"><span class="task-icon">N1P2</span>N1-P2</div>
      <div class="task-tile" data-task="RON" onclick="showIntro('RON')" title="Reorienting Negativity — fronto-central negativity ~400–600ms following an unexpected deviant that captures attention; reflects reorientation of attention back to the attended channel after distraction by a novel sound"><span class="task-icon">RON</span>RON</div>
    </div>
    <div style="margin-top:14px;margin-bottom:5px;font-size:0.62rem;font-family:'Source Code Pro',monospace;letter-spacing:0.16em;color:rgba(212,180,86,0.5);border-left:2px solid rgba(212,180,86,0.25);padding-left:8px;">VISUAL ERPs<span style="color:rgba(138,180,208,0.35);margin-left:10px;font-size:0.58rem;">spatial attention · face · object</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="P1N1" onclick="showIntro('P1N1')" style="border-color:rgba(212,180,86,0.35);" title="P1/N1 Spatial Attention — bilateral flash with cued spatial attention; P1 enhanced ~100ms over contralateral occipital scalp at attended location; N1 enhanced ~160ms; canonical covert spatial attention ERP (Hillyard et al., 1973)"><span class="task-icon">P₁N₁</span>P1/N1 SPATIAL</div>
      <div class="task-tile" data-task="N170" onclick="showIntro('N170')" style="border-color:rgba(212,180,86,0.35);" title="N170 Face/Object — occipito-temporal negative component ~170 ms; larger for faces than objects, larger/later for inverted faces (configural processing)"><span class="task-icon">👁</span>N170 FACE</div>
      <div class="task-tile" data-task="VPP" onclick="showIntro('VPP')" title="Vertex Positive Potential — positive counterpart of N170 at midline vertex (Cz); peaks ~170ms to faces; face-specific; reflects same fusiform source as N170 seen at opposite polarity at Cz"><span class="task-icon">VPP</span>VPP</div>
      <div class="task-tile" data-task="N2PC" onclick="showIntro('N2PC')" style="border-color:rgba(212,180,86,0.35);" title="N2pc — bilateral visual search; contralateral posterior negativity ~220–300 ms (PO7/PO8) marks covert attentional capture by the target"><span class="task-icon">◎</span>N2pc</div>
      <div class="task-tile" data-task="N2B" onclick="showIntro('N2B')" title="N2b — target-elicited fronto-central negativity ~200–300ms; attention and stimulus categorisation; dissociates from N2pc (spatial) and N200 (inhibition); reflects mismatch between stimulus and target template"><span class="task-icon">N2b</span>N2b</div>
      <div class="task-tile" data-task="PD" onclick="showIntro('PD')" title="Pd (Distractor Positivity) — contralateral positivity ~200–300ms to actively suppressed salient distractors; complement to N2pc; reflects top-down suppression of attention capture"><span class="task-icon">Pd</span>Pd</div>
      <div class="task-tile" data-task="N300" onclick="showIntro('N300')" style="border-color:rgba(212,180,86,0.35);" title="N300 Object Priming — emoji prime → target; central-occipital negativity ~300 ms smaller for categorically congruent pairs"><span class="task-icon">N₃</span>N300</div>
      <div class="task-tile" data-task="P100" onclick="showIntro('P100')" style="border-color:rgba(212,180,86,0.35);" title="P100 Flashed VEP — brief full-field luminance flashes elicit P100 at occipital sites ~80–130 ms; V1-generated; classic flash VEP distinct from pattern-onset PVEP; occasional dim catch trials require SPACE response"><span class="task-icon">⚡</span>P100 FLASH</div>
      <div class="task-tile" data-task="CSR" onclick="showIntro('CSR')" style="border-color:rgba(212,180,86,0.35);" title="Contrast Reversal — checkerboard reversal with rare target orientations; elicits visual P300 and N2"><span class="task-icon">▨</span>CONTRAST REV.</div>
      <div class="task-tile" data-task="SSVEP" onclick="showIntro('SSVEP')" style="border-color:rgba(212,180,86,0.35);" title="SSVEP — Steady-State Visual Evoked Potential; flickering patches at 10 Hz (left) and 15 Hz (right) produce sharp spectral peaks in occipital EEG at exactly those frequencies"><span class="task-icon">~</span>SSVEP</div>
      <div class="task-tile" data-task="ERAN" onclick="showIntro('ERAN')" title="ERAN — Early Right Anterior Negativity; music-syntactic violation ~150–200ms; right-lateralised; chord irregularity detection; analogous to ELAN for language syntax; sensitive to musical training"><span class="task-icon">♭ERAN</span>ERAN</div>
    </div>
    <div style="margin-top:14px;margin-bottom:5px;font-size:0.62rem;font-family:'Source Code Pro',monospace;letter-spacing:0.16em;color:rgba(212,180,86,0.5);border-left:2px solid rgba(212,180,86,0.25);padding-left:8px;">MOTOR & PREPARATION<span style="color:rgba(138,180,208,0.35);margin-left:10px;font-size:0.58rem;">readiness · lateralisation · anticipation</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="BP" onclick="showIntro('BP')" style="border-color:rgba(212,180,86,0.35);" title="Bereitschaftspotential (Readiness Potential) — self-paced voluntary keypresses; slow negative ramp over Cz beginning ~1500 ms before movement. Libet free-will paradigm."><span class="task-icon">↑</span>BEREITSCHAFT</div>
      <div class="task-tile" data-task="LRP" onclick="showIntro('LRP')" style="border-color:rgba(212,180,86,0.35);" title="Lateralized Readiness Potential — left/right arrow task; contralateral motor cortex negativity ~300–500 ms indexes hand-specific motor preparation"><span class="task-icon">⇌</span>LRP</div>
      <div class="task-tile" data-task="CNV" onclick="showIntro('CNV')" style="border-color:rgba(212,180,86,0.35);" title="Contingent Negative Variation — S1 warning → S2 imperative; slow negative ramp during foreperiod reflects motor preparation and temporal expectancy"><span class="task-icon">〜</span>CNV</div>
      <div class="task-tile" data-task="CNVW" onclick="showIntro('CNVW')" style="border-color:rgba(212,180,86,0.35);" title="CNV Warning Signal — S1 warning tone precedes S2 imperative stimulus by 1000ms; slow negative CNV builds between them over frontal scalp; amplitude reflects motor preparation and temporal expectancy; distinct from Bereitschaftspotential"><span class="task-icon">〜W</span>CNV WARNING</div>
    </div>
    <div style="margin-top:14px;margin-bottom:5px;font-size:0.62rem;font-family:'Source Code Pro',monospace;letter-spacing:0.16em;color:rgba(212,180,86,0.5);border-left:2px solid rgba(212,180,86,0.25);padding-left:8px;">EXECUTIVE & INHIBITORY<span style="color:rgba(138,180,208,0.35);margin-left:10px;font-size:0.58rem;">conflict · error · inhibition</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="ERN" onclick="showIntro('ERN')" style="border-color:rgba(212,180,86,0.35);" title="Error-Related Negativity — fast forced-choice arrow task; frontocentral negative deflection ~0–100 ms after errors"><span class="task-icon">✗</span>ERN</div>
      <div class="task-tile" data-task="PE" onclick="showIntro('PE')" title="Pe — Error Positivity; centroparietal positivity ~200–400ms after ERN; reflects conscious awareness of an error; dissociates from ERN in anosognosia; mediated by anterior cingulate and insular cortex"><span class="task-icon">Pe</span>Pe</div>
      <div class="task-tile" data-task="N200" onclick="showIntro('N200')" style="border-color:rgba(212,180,86,0.35);" title="N200 / NoGo N2 — two-choice Go/No-Go; frontocentral negative peak ~200 ms selectively larger for inhibited No-Go responses"><span class="task-icon">N₂</span>N200 / NoGo</div>
      <div class="task-tile" data-task="MFN" onclick="showIntro('MFN')" title="Medial Frontal Negativity — fronto-central negativity ~200–350ms to response conflict and prediction mismatch in non-motor contexts; related to N2 family; sensitive to incongruency and expectation violation"><span class="task-icon">MFN</span>MFN</div>
      <div class="task-tile" data-task="P3A" onclick="showIntro('P3A')" style="border-color:rgba(212,180,86,0.35);" title="Novelty P300 / P3a — three-stimulus oddball; dissociates P3a (frontal novelty) from P3b (parietal target detection)"><span class="task-icon">P₃ₐ</span>P3a NOVELTY</div>
    </div>
    <div style="margin-top:14px;margin-bottom:5px;font-size:0.62rem;font-family:'Source Code Pro',monospace;letter-spacing:0.16em;color:rgba(212,180,86,0.5);border-left:2px solid rgba(212,180,86,0.25);padding-left:8px;">REWARD & SLOW WAVES<span style="color:rgba(138,180,208,0.35);margin-left:10px;font-size:0.58rem;">reinforcement · SCP · oscillations</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="REWP" onclick="showIntro('REWP')" style="border-color:rgba(212,180,86,0.35);" title="Reward Positivity (RewP/FRN) — feedback-locked ERP ~250ms; win elicits positivity, loss negativity; orbitofrontal source; used in depression, addiction, and decision-making research"><span class="task-icon">±</span>RewP / FRN</div>
      <div class="task-tile" data-task="LPC" onclick="showIntro('LPC')" title="Late Positive Component — parietal positivity 500–800ms during episodic recognition; reflects recollection; dissociates from familiarity (FN400); large for high-confidence remembered items"><span class="task-icon">LPC</span>LPC</div>
      <div class="task-tile" data-task="FRN" onclick="showIntro('FRN')" title="Feedback-Related Negativity — fronto-central negativity ~200–300ms after negative outcomes; reward prediction error signal; distinct from ERN which follows one's own errors; sensitive to depression and substance use"><span class="task-icon">FRN</span>FRN</div>
      <div class="task-tile" data-task="SCP" onclick="showIntro('SCP')" style="border-color:rgba(212,180,86,0.35);" title="Slow Cortical Potentials — sustained DC shifts during cognitive load; used in neurofeedback and BCI"><span class="task-icon">⌇</span>SCP</div>
      <div class="task-tile" data-task="CDA" onclick="showIntro('CDA')" title="Contralateral Delay Activity — sustained negativity during visual working memory maintenance; contralateral to memorised items; capacity ~3–4 items; individual differences in WM capacity"><span class="task-icon">CDA</span>CDA</div>
      <div class="task-tile" data-task="THALPHA" onclick="showIntro('THALPHA')" style="border-color:rgba(212,180,86,0.35);" title="Theta/Alpha Oscillations — eyes-open vs eyes-closed blocks; occipital alpha (8–13Hz) suppresses during eyes-open; frontal theta (4–8Hz) indexes working memory load; standard clinical EEG baseline"><span class="task-icon">∿α</span>THETA/ALPHA</div>
    </div>
    <div style="margin-top:14px;margin-bottom:5px;font-size:0.62rem;font-family:'Source Code Pro',monospace;letter-spacing:0.16em;color:rgba(212,180,86,0.5);border-left:2px solid rgba(212,180,86,0.25);padding-left:8px;">SENSORY GATING & BASELINE<span style="color:rgba(138,180,208,0.35);margin-left:10px;font-size:0.58rem;">pre-attentive · clinical baseline</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="P50" onclick="showIntro('P50')" style="border-color:rgba(212,180,86,0.35);" title="P50 Sensory Gating — paired clicks; S2/S1 ratio indexes pre-attentive sensory suppression; schizophrenia biomarker"><span class="task-icon">P₅</span>P50 GATING</div>
      <div class="task-tile" data-task="N100" onclick="showIntro('N100')" style="border-color:rgba(212,180,86,0.35);" title="Auditory N100/P200 — click train AEP; foundational clinical component; N100 latency indexes auditory cortex processing speed"><span class="task-icon">N₁</span>N100 / P200</div>
      <div class="task-tile" data-task="LDAEP" onclick="showIntro('LDAEP')" title="Loudness Dependence of Auditory Evoked Potential — N1/P2 amplitude slopes with intensity; inverse index of serotonin activity; high LDAEP = low serotonergic tone; used in antidepressant response prediction"><span class="task-icon">LDAEP</span>LDAEP</div>
      <div class="task-tile" data-task="C1" onclick="showIntro('C1')" title="C1 — first cortical visual ERP (~50–90ms); generated in primary visual cortex (V1); polarity inverts for upper vs lower visual field stimulation; attention does not modulate C1; pure feedforward striate response"><span class="task-icon">C1</span>C1</div>
    </div>
    <div class="grid-section-label" style="margin-top:22px;" data-en="SENSORY TESTING" data-en-sub="visual · color · auditory · rhythm" data-es="PRUEBAS SENSORIALES" data-es-sub="visual · color · auditivo · ritmo" data-fr="TESTS SENSORIELS" data-fr-sub="visuel · couleur · auditif · rythme" data-de="SENSORISCHE TESTS" data-de-sub="visuell · Farbe · auditiv · Rhythmus" data-zh="感官测试" data-zh-sub="视觉 · 色觉 · 听觉 · 节奏" data-ja="感覚検査" data-ja-sub="視覚 · 色覚 · 聴覚 · リズム" data-pt="TESTES SENSORIAIS" data-pt-sub="visual · cor · auditivo · ritmo" data-he="בדיקות חישה" data-he-sub="ראייה · צבע · שמיעה · קצב" data-ar="الفحوصات الحسية" data-ar-sub="بصري · ألوان · سمعي · إيقاع" data-ru="СЕНСОРНЫЕ ТЕСТЫ" data-ru-sub="зрение · цвет · слух · ритм">SENSORY TESTING<span>visual · color · auditory · rhythm</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="SNELLEN" onclick="showIntro('SNELLEN')" style="border-color:rgba(212,180,86,0.35);" title="Visual Acuity — Snellen chart screening; calibrated to viewing distance and display PPI; reports acuity in 20/x notation"><span class="task-icon">E</span>VISUAL ACUITY</div>
      <div class="task-tile" data-task="ISHIHARA" onclick="showIntro('ISHIHARA')" style="border-color:rgba(212,180,86,0.35);" title="Color Vision — Ishihara-style plates; numerals embedded in dichromatic-confusion-line color dots; red-green and blue-yellow screening"><span class="task-icon">⬢</span>COLOR VISION</div>
      <div class="task-tile" data-task="SEASHORE" onclick="showIntro('SEASHORE')" style="border-color:rgba(212,180,86,0.35);" title="Seashore Rhythm Test — pairs of rhythmic patterns; same/different judgement; auditory attention and non-verbal rhythm discrimination"><span class="task-icon">♪</span>SEASHORE RHYTHM</div>
      <div class="task-tile" data-task="AUDIOM" onclick="showIntro('AUDIOM')" style="border-color:rgba(212,180,86,0.35);" title="Auditory Threshold — Hughson-Westlake pure-tone screening across 250 Hz to 8 kHz; produces relative audiogram; uncalibrated browser SPL"><span class="task-icon">Ω</span>AUDIO THRESHOLD</div>
      <div class="task-tile" data-task="GABOR" onclick="showIntro('GABOR')" style="border-color:rgba(212,180,86,0.35);" title="Gabor Contrast Threshold — orientation 2AFC with adaptive staircase on Michelson contrast; estimates contrast detection threshold via reversal mean. Sensitive to visual aging, glaucoma, amblyopia, MS."><span class="task-icon">◐</span>GABOR PATCH</div>
    </div>
    <div class="grid-section-label" style="margin-top:22px;" data-en="NEUROPSYCHOLOGY" data-en-sub="attention · memory · executive · motor" data-es="NEUROPSICOLOGÍA" data-es-sub="atención · memoria · función ejecutiva · motor" data-fr="NEUROPSYCHOLOGIE" data-fr-sub="attention · mémoire · fonctions exécutives · moteur" data-de="NEUROPSYCHOLOGIE" data-de-sub="Aufmerksamkeit · Gedächtnis · Exekutivfunktionen · Motor" data-zh="神经心理" data-zh-sub="注意 · 记忆 · 执行功能 · 运动" data-ja="神経心理" data-ja-sub="注意 · 記憶 · 実行機能 · 運動" data-pt="NEUROPSICOLOGIA" data-pt-sub="atenção · memória · funções executivas · motor" data-he="נוירופסיכולוגיה" data-he-sub="קשב · זיכרון · ביצועי · מוטורי" data-ar="النفس العصبي" data-ar-sub="الانتباه · الذاكرة · التنفيذي · الحركي" data-ru="НЕЙРОПСИХОЛОГИЯ" data-ru-sub="внимание · память · исполнительные · моторные">NEUROPSYCHOLOGY<span>attention · memory · executive · motor</span></div>
    <div style="margin-top:14px;margin-bottom:5px;font-size:0.62rem;font-family:'Source Code Pro',monospace;letter-spacing:0.16em;color:rgba(212,180,86,0.5);border-left:2px solid rgba(212,180,86,0.25);padding-left:8px;">ATTENTION & VIGILANCE<span style="color:rgba(138,180,208,0.35);margin-left:10px;font-size:0.58rem;">attention · vigilance · sustained performance</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="GNG" onclick="showIntro('GNG')" title="Go/No-Go — response inhibition; respond to Go stimuli, withhold to No-Go. Measures prepotent response suppression."><span class="task-icon">●</span>GO / NO-GO</div>
      <div class="task-tile" data-task="CPT" onclick="showIntro('CPT')" title="Continuous Performance Test (CPT-AX) — sustained attention/vigilance; X after A is the target; detects ADHD and TBI fatigue effects over time"><span class="task-icon">◉</span>CPT</div>
      <div class="task-tile" data-task="SPATIAL" onclick="showIntro('SPATIAL')" title="Spatial Attention — click the highlighted cell in a 3×3 grid as fast as possible. Measures visuospatial processing speed and selective attention."><span class="task-icon">⊞</span>SPATIAL</div>
      <div class="task-tile" data-task="POSNER" onclick="showIntro('POSNER')" title="Posner Cueing — endogenous or exogenous spatial cue precedes a target. Valid minus invalid RT = attentional benefit / cost."><span class="task-icon">◁▷</span>POSNER</div>
      <div class="task-tile" data-task="ATTBLINK" onclick="showIntro('ATTBLINK')" title="Attentional Blink — RSVP stream of letters; T2 missed when 200–500ms after T1; temporal window of inattention after resource depletion"><span class="task-icon">◫</span>ATT. BLINK</div>
      <div class="task-tile" data-task="DUALTASK" onclick="showIntro('DUALTASK')" title="Dual Task — simultaneous letter monitoring + spatial tracking; dual-task cost indexes divided attention and central bottleneck"><span class="task-icon">⊕</span>DUAL TASK</div>
      <div class="task-tile" data-task="SART" onclick="showIntro('SART')" title="Sustained Attention to Response Task — respond to every digit except 3; commission rate indexes mindwandering; sensitive to TBI and ADHD"><span class="task-icon">3̸</span>SART</div>
      <div class="task-tile" data-task="UFOV" onclick="showIntro('UFOV')" title="Useful Field of View — central discrimination + peripheral detection; divided attention; driving safety predictor; sensitive to aging and TBI"><span class="task-icon">⊙</span>UFOV</div>
    </div>
    <div style="margin-top:14px;margin-bottom:5px;font-size:0.62rem;font-family:'Source Code Pro',monospace;letter-spacing:0.16em;color:rgba(212,180,86,0.5);border-left:2px solid rgba(212,180,86,0.25);padding-left:8px;">WORKING MEMORY<span style="color:rgba(138,180,208,0.35);margin-left:10px;font-size:0.58rem;">capacity · updating · span</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="NBACK" onclick="showIntro('NBACK')" title="N-Back — working memory updating; decide if the current letter matches N trials back. Taxes hold-update-compare in working memory."><span class="task-icon">N</span>N-BACK</div>
      <div class="task-tile" data-task="STB" onclick="showIntro('STB')" title="Sternberg Memory Scanning — letters presented one at a time; probe whether a target was in the set. RT slope across set sizes = memory scanning rate."><span class="task-icon">Ш</span>STERNBERG</div>
      <div class="task-tile" data-task="DST" onclick="showIntro('DST')" title="Digit Span (WAIS-IV) — repeat digit sequences forward then backward. Span length = verbal working memory capacity."><span class="task-icon">🔢</span>DIGIT SPAN</div>
      <div class="task-tile" data-task="SPATWM" onclick="showIntro('SPATWM')" title="Spatial Working Memory — remember locations of highlighted boxes across a delay; distinct from verbal span; Corsi block-tapping analog"><span class="task-icon">⬜</span>SPATIAL WM</div>
      <div class="task-tile" data-task="OSPAN" onclick="showIntro('OSPAN')" title="Operation Span (automated; Unsworth et al., 2005) — alternate solving a short math equation (true/false) with remembering a letter, then recall the letters in order. The gold-standard complex working-memory-capacity measure; partial and absolute span scores predict fluid intelligence and reading comprehension."><span class="task-icon">∑</span>OPERATION SPAN</div>
      <div class="task-tile" data-task="DIGCAN" onclick="showIntro('DIGCAN')" title="Digit Cancellation — scan a grid of random digits and mark every target digit (e.g. 3 and 7); total correct, omissions, false alarms, and time index sustained attention and processing speed"><span class="task-icon">3̶</span>DIGIT CANCEL</div>
      <div class="task-tile" data-task="STAR" onclick="showIntro('STAR')" title="Star Cancellation — find and click every small target star scattered among distractors (large stars, letters, short words); 52 targets total; classic Behavioural Inattention Test (BIT) screen for left-sided hemispatial neglect (post-stroke, lesions). Score: targets found, side asymmetry (L vs R), time."><span class="task-icon">✦</span>STAR CANCEL</div>
    </div>
    <div style="margin-top:14px;margin-bottom:5px;font-size:0.62rem;font-family:'Source Code Pro',monospace;letter-spacing:0.16em;color:rgba(212,180,86,0.5);border-left:2px solid rgba(212,180,86,0.25);padding-left:8px;">EXECUTIVE FUNCTION<span style="color:rgba(138,180,208,0.35);margin-left:10px;font-size:0.58rem;">inhibition · flexibility · planning · conflict</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="WCST" onclick="showIntro('WCST')" title="Wisconsin Card Sorting Test — infer the sorting rule (colour, shape, number) from feedback; rule shifts silently. Measures cognitive flexibility and perseverative errors."><span class="task-icon">♦</span>CARD SORT</div>
      <div class="task-tile" data-task="FLANKER" onclick="showIntro('FLANKER')" title="Eriksen Flanker — respond to the central arrow, ignore flankers. Incongruent minus congruent RT = flanker interference / conflict cost."><span class="task-icon">⟺</span>FLANKER</div>
      <div class="task-tile" data-task="STOP" onclick="showIntro('STOP')" title="Stop Signal Task — respond to arrows; withhold when a beep sounds. Staircase tracks stop-signal delay; SSRT = mean Go RT − final SSD."><span class="task-icon">⛔</span>STOP SIGNAL</div>
      <div class="task-tile" data-task="TASKSWITCH" onclick="showIntro('TASKSWITCH')" title="Task Switching — alternate between two classification rules with a cue; switch cost = slowed RT on switch trials; measures cognitive flexibility"><span class="task-icon">⇄</span>TASK SWITCH</div>
      <div class="task-tile" data-task="STROOP" onclick="showIntro('STROOP')" title="Stroop Color-Word — respond to ink color, ignore the word. Incongruent minus congruent RT = Stroop interference; classic executive control index."><span class="task-icon">🎨</span>STROOP</div>
      <div class="task-tile" data-task="EMOTSTROOP" onclick="showIntro('EMOTSTROOP')" title="Emotional Stroop — name ink color of emotional vs neutral words; affective interference slows RT to emotional words; measures attentional bias"><span class="task-icon">❤</span>EMOT. STROOP</div>
      <div class="task-tile" data-task="TOL" onclick="showIntro('TOL')" title="Tower of London — move coloured discs to match a goal state in the minimum number of moves; measures executive planning, prefrontal inhibition, and problem-solving; sensitive to frontal lobe dysfunction"><span class="task-icon">⬛</span>TOWER OF LONDON</div>
      <div class="task-tile" data-task="MATRIX" onclick="showIntro('MATRIX')" title="Matrix Reasoning — complete the pattern; non-verbal fluid intelligence; culture-fair; sensitive to global cognitive decline"><span class="task-icon">⊞?</span>MATRIX REASONING</div>
      <div class="task-tile" data-task="META" onclick="showIntro('META')" title="Metacognition — confidence ratings on memory decisions; type 2 d-prime; metacognitive efficiency; impaired in schizophrenia and anosognosia"><span class="task-icon">?̲</span>METACOGNITION</div>
    </div>
    <div style="margin-top:14px;margin-bottom:5px;font-size:0.62rem;font-family:'Source Code Pro',monospace;letter-spacing:0.16em;color:rgba(212,180,86,0.5);border-left:2px solid rgba(212,180,86,0.25);padding-left:8px;">PROCESSING SPEED<span style="color:rgba(138,180,208,0.35);margin-left:10px;font-size:0.58rem;">psychomotor · scanning · enumeration</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="SYMSEARCH" onclick="showIntro('SYMSEARCH')" title="Symbol Search (WAIS-IV) — scan a row of symbols and decide if either target appears; processing speed index alongside Digit Symbol Coding"><span class="task-icon">Ψ</span>SYMBOL SEARCH</div>
      <div class="task-tile" data-task="DSC" onclick="showIntro('DSC')" title="Digit Symbol Coding (WAIS-IV subtest) — fill in the symbol paired with each digit as fast as possible in 90 s. Classic measure of processing speed."><span class="task-icon">9</span>DIGIT SYMBOL</div>
      <div class="task-tile" data-task="FTT" onclick="showIntro('FTT')" title="Finger Tapping Test (Halstead-Reitan) — dominant hand, non-dominant hand, and alternating tapping. Measures motor speed, regularity, and bimanual coordination."><span class="task-icon">👆</span>FINGER TAP</div>
      <div class="task-tile" data-task="SRTT" onclick="showIntro('SRTT')" title="Serial Reaction Time Task (Nissen &amp; Bullemer, 1987) — press the key for the highlighted box; cues secretly follow a repeating sequence, so responses speed up as the sequence is implicitly learned. A hidden random block reveals the learning effect (random slower than sequence). Probes procedural learning; pairs with motor-preparation ERPs (BP/LRP/CNV)."><span class="task-icon">⌨</span>SERIAL RT</div>
      <div class="task-tile" data-task="SUBITIZE" onclick="showIntro('SUBITIZE')" title="Subitizing — rapidly enumerate 1–8 dots; flat RT slope 1–4 (subitizing) vs steep slope 4+ (counting); numerosity processing speed"><span class="task-icon">⠿</span>SUBITIZING</div>
      <div class="task-tile" data-task="PASAT" onclick="showIntro('PASAT')" title="Paced Auditory Serial Addition Test — single digits presented at fixed rate; add each new digit to the one immediately before it; measures divided attention, working memory updating, and processing speed; standard in MS and TBI assessment"><span class="task-icon">+</span>PASAT</div>
    </div>
    <div style="margin-top:14px;margin-bottom:5px;font-size:0.62rem;font-family:'Source Code Pro',monospace;letter-spacing:0.16em;color:rgba(212,180,86,0.5);border-left:2px solid rgba(212,180,86,0.25);padding-left:8px;">MEMORY<span style="color:rgba(138,180,208,0.35);margin-left:10px;font-size:0.58rem;">verbal learning · recall · prospective</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="RECALL" onclick="showIntro('RECALL')" title="Free Recall — study a word list, distractor arithmetic, then type every word you remember. Records serial position (primacy/recency) effects."><span class="task-icon">≡</span>FREE RECALL</div>
      <div class="task-tile" data-task="RAVLT" onclick="showIntro('RAVLT')" title="Rey Auditory Verbal Learning Test — 15-word list read 5 times; interference list; immediate recall; 20-minute delayed recall; learning curve, primacy/recency, proactive interference, retention — gold standard verbal memory assessment"><span class="task-icon">≡₅</span>RAVLT</div>
      <div class="task-tile" data-task="CVLT" onclick="showIntro('CVLT')" title="California Verbal Learning Test — 16-word shopping list from 4 semantic categories; 5 learning trials; short and long delay free and cued recall; recognition; measures learning curve, semantic clustering, serial position, and retention"><span class="task-icon">🛒</span>CVLT</div>
      <div class="task-tile" data-task="PAL" onclick="showIntro('PAL')" title="Paired Associate Learning — study word-word pairs; cued recall; measures hippocampal associative binding; sensitive to early Alzheimer disease"><span class="task-icon">A↔B</span>PAIRED ASSOC.</div>
      <div class="task-tile" data-task="SRCMEM" onclick="showIntro('SRCMEM')" title="Source Memory — remember not just what but where you learned it; frontal lobe function; dissociates recollection from familiarity"><span class="task-icon">⌖</span>SOURCE MEMORY</div>
      <div class="task-tile" data-task="PROSMEM" onclick="showIntro('PROSMEM')" title="Prospective Memory — remember to press a key when a target appears during an ongoing task; often impaired in TBI and aging"><span class="task-icon">⏰</span>PROSP. MEMORY</div>
      <div class="task-tile" data-task="SPR" onclick="showIntro('SPR')" style="border-color:rgba(212,180,86,0.45);" title="Serial Probe Recognition (Sands & Wright, 1980, Science) — study a list of N distinct pictures, then judge whether a probe was in the list. Yields the classic primacy + recency serial position function. Defaults to procedural shape stimuli; load your own image set via the ♬ CUSTOM IMAGES sidebar button."><span class="task-icon">SPR</span>SERIAL PROBE</div>
      <div class="task-tile" data-task="SPR-A" onclick="showIntro('SPR-A')" style="border-color:rgba(212,180,86,0.45);" title="Auditory Serial Probe Recognition (Sands & Wright, 1982 family) — study a sequential list of N distinct sound stimuli, then judge whether a probe sound was in the list. Requires user-loaded audio files via the ♬ CUSTOM AUDIO sidebar (8+ files in the SPR-A pool)."><span class="task-icon">SPR♪</span>SERIAL PROBE-A</div>
      <div class="task-tile" data-task="MTS" onclick="showIntro('MTS')" style="border-color:rgba(212,180,86,0.45);" title="Matching-to-Sample (Wright, Santiago, Sands et al.) — a sample stimulus is shown, then 2–4 comparison stimuli appear; choose the one matching the sample. Simultaneous (sample stays visible) or Delayed (DMTS, sample hidden after a retention interval). Uses the same procedural shapes / CUSTOM IMAGES pool as SPR."><span class="task-icon">MTS</span>MATCH-TO-SAMPLE</div>
      <div class="task-tile" data-task="SEMFLUENCY" onclick="showIntro('SEMFLUENCY')" title="Semantic Fluency — name as many animals/foods/tools as possible in 60s; total and cluster scores index frontal/temporal lobe integrity"><span class="task-icon">🐾</span>SEM. FLUENCY</div>
      <div class="task-tile" data-task="PHONFLUE" onclick="showIntro('PHONFLUE')" title="Phonemic Fluency (FAS) — name as many words as possible beginning with F, then A, then S in 60 seconds each; phonemic fluency indexes frontal lobe integrity and lexical access speed; distinct from semantic fluency"><span class="task-icon">FAS</span>PHON. FLUENCY</div>
    </div>
    <div style="margin-top:14px;margin-bottom:5px;font-size:0.62rem;font-family:'Source Code Pro',monospace;letter-spacing:0.16em;color:rgba(212,180,86,0.5);border-left:2px solid rgba(212,180,86,0.25);padding-left:8px;">LANGUAGE & LEXICAL<span style="color:rgba(138,180,208,0.35);margin-left:10px;font-size:0.58rem;">access · naming · decision</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="LEXDEC" onclick="showIntro('LEXDEC')" title="Lexical Decision — word vs non-word as fast as possible; RT varies with word frequency, imageability, and orthographic neighborhood size"><span class="task-icon">Aa</span>LEXICAL DEC.</div>
      <div class="task-tile" data-task="PNT" onclick="showIntro('PNT')" title="Picture Naming — name pictured objects aloud as fast as possible. Scored by speech recognition; measures lexical access and naming speed."><span class="task-icon">🖼</span>PICTURE NAMING</div>
      <div class="task-tile" data-task="BNT" onclick="showIntro('BNT')" title="Boston Naming Test — name line drawings of objects; graded difficulty; sensitive to temporal lobe damage and Alzheimer disease"><span class="task-icon">🖊</span>BOSTON NAMING</div>
    </div>
    <div style="margin-top:14px;margin-bottom:5px;font-size:0.62rem;font-family:'Source Code Pro',monospace;letter-spacing:0.16em;color:rgba(212,180,86,0.5);border-left:2px solid rgba(212,180,86,0.25);padding-left:8px;">VISUOSPATIAL<span style="color:rgba(138,180,208,0.35);margin-left:10px;font-size:0.58rem;">orientation · rotation · trails</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="MRT" onclick="showIntro('MRT')" title="Mental Rotation — decide if two 3-D objects are the same shape at different orientations. RT increases with rotation angle (Shepard & Metzler)."><span class="task-icon">⟳</span>MENTAL ROTATION</div>
      <div class="task-tile" data-task="JLO" onclick="showIntro('JLO')" title="Judgment of Line Orientation (JLO, Benton) — match two angled line segments to a reference fan of 11 lines; measures visuospatial perception; right parietal lobe function; sensitive to hemispatial neglect and parietal lesions"><span class="task-icon">/|</span>LINE ORIENT.</div>
      <div class="task-tile" data-task="TMT" onclick="showIntro('TMT')" title="Trail Making Test — Part A: connect numbers in order; Part B: alternate numbers and letters. Part B / Part A ratio indexes executive set-shifting."><span class="task-icon">→</span>TRAIL MAKING</div>
      <div class="task-tile" data-task="VRT" onclick="showIntro('VRT')" title="Visual Recognition — study procedurally-generated patterns, then identify them among foils. Records hit rate, false alarms, and d′ sensitivity."><span class="task-icon">◈</span>VISUAL RECOG</div>
      <div class="task-tile" data-task="TOJ" onclick="showIntro('TOJ')" title="Temporal Order Judgment — which stimulus came first; estimates JND via staircase; sensitive to basal ganglia and cerebellar timing dysfunction"><span class="task-icon">t₁t₂</span>TEMPORAL ORDER</div>
      <div class="task-tile" data-task="TBIS" onclick="showIntro('TBIS')" title="Temporal Bisection (Wearden, 1991) — learn a short and a long standard duration, then judge intermediate durations as nearer the SHORT or LONG standard. Yields the bisection point (subjective midpoint) and Weber ratio (timing precision). Probes interval timing / the internal clock; pairs with the CNV."><span class="task-icon">⏱</span>TIME BISECT</div>
    </div>
    <div style="margin-top:14px;margin-bottom:5px;font-size:0.62rem;font-family:'Source Code Pro',monospace;letter-spacing:0.16em;color:rgba(212,180,86,0.5);border-left:2px solid rgba(212,180,86,0.25);padding-left:8px;">SOCIAL COGNITION<span style="color:rgba(138,180,208,0.35);margin-left:10px;font-size:0.58rem;">theory of mind · mentalising</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="RMET" onclick="showIntro('RMET')" title="Reading the Mind in the Eyes (Baron-Cohen) — infer mental state from eye-region photographs; 4-alternative forced choice; measures Theory of Mind / social cognition; impaired in ASD, alexithymia, and frontal lesions"><span class="task-icon">👁</span>MIND IN EYES</div>
      <div class="task-tile" data-task="FER" onclick="showIntro('FER')" title="Facial Emotion Recognition — identify six basic emotions; amygdala-dependent affective processing; impaired in amygdala lesions and depression"><span class="task-icon">😐</span>FACIAL EMOTION</div>
    </div>
    <div style="margin-top:14px;margin-bottom:5px;font-size:0.62rem;font-family:'Source Code Pro',monospace;letter-spacing:0.16em;color:rgba(212,180,86,0.5);border-left:2px solid rgba(212,180,86,0.25);padding-left:8px;">DECISION MAKING<span style="color:rgba(138,180,208,0.35);margin-left:10px;font-size:0.58rem;">reward · risk · strategy</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="IGT" onclick="showIntro('IGT')" title="Iowa Gambling Task — choose from four decks; advantageous (C/D) vs disadvantageous (A/B); measures somatic marker / ventromedial PFC function; impaired in addiction, vmPFC lesions, and psychopathy"><span class="task-icon">🃏</span>IOWA GAMBLING</div>
      <div class="task-tile" data-task="PRL" onclick="showIntro('PRL')" title="Probabilistic Reversal Learning — choose between two stimuli under an 80/20 reward schedule; contingencies reverse without warning; indexes reward-based flexibility and feedback monitoring (FRN/RewP). Sensitive to OFC/ventral-striatal function; perseveration in OCD, depression, Parkinson's, and frontal lesions."><span class="task-icon">🔁</span>PROB. REVERSAL</div>
      <div class="task-tile" data-task="DD" onclick="showIntro('DD')" title="Delay Discounting — repeated choices between a smaller-sooner and a larger-later ($1000) reward; an adjusting-amount staircase finds the indifference point at each delay, yielding a hyperbolic discount rate k and the model-free area-under-curve. Steep discounting (high k / low AuC) indexes impulsivity; elevated in addiction, ADHD, and obesity."><span class="task-icon">⏳</span>DELAY DISCOUNT</div>
      <div class="task-tile" data-task="BART" onclick="showIntro('BART')" title="Balloon Analogue Risk Task (Lejuez et al., 2002) — pump a balloon for money; each pump adds reward but raises the chance it bursts and you lose that balloon's earnings. Bank anytime. Adjusted average pumps indexes risk-taking / impulsivity; each pump is a reward-anticipation event (FRN/RewP/P300). Elevated in substance use, sensation-seeking, and ADHD."><span class="task-icon">🎈</span>BART RISK</div>
    </div>
    <div style="margin-top:14px;margin-bottom:5px;font-size:0.62rem;font-family:'Source Code Pro',monospace;letter-spacing:0.16em;color:rgba(212,180,86,0.5);border-left:2px solid rgba(212,180,86,0.25);padding-left:8px;">SCREENING<span style="color:rgba(138,180,208,0.35);margin-left:10px;font-size:0.58rem;">cognitive screening · global assessment</span></div>
    <div class="task-select-grid" style="margin-bottom:4px;">
      <div class="task-tile" data-task="MOCA" onclick="showIntro('MOCA')" title="Montreal Cognitive Assessment — 10-minute cognitive screening; visuospatial, naming, memory, attention, language, abstraction, orientation; /30, <26 = impairment"><span class="task-icon">🧠</span>MoCA</div>
      <div class="task-tile" data-task="CDT" onclick="showIntro('CDT')" title="Clock Drawing Test — draw a clock showing 10 past 11; classic screen for dementia, executive dysfunction, hemispatial neglect, constructional apraxia. Used in MoCA, MMSE-2, Mini-Cog. Browser version captures full stroke data + completion time; provides quantitative log for later manual scoring (Shulman 6-point or Sunderland 10-point)."><span class="task-icon">⏱</span>CLOCK DRAW</div>
      <div class="task-tile" data-task="PHQ9" onclick="showIntro('PHQ9')" title="PHQ-9 Depression — 9 items; 0-27; >=10 moderate depression; standard primary care screen"><span class="task-icon">PHQ</span>PHQ-9</div>
      <div class="task-tile" data-task="GAD7" onclick="showIntro('GAD7')" title="GAD-7 Anxiety — 7 items; 0-21; >=10 moderate anxiety; screens for GAD, panic, social anxiety, PTSD"><span class="task-icon">GAD</span>GAD-7</div>
      <div class="task-tile" data-task="PCL5" onclick="showIntro('PCL5')" title="PCL-5 PTSD Checklist — 20 DSM-5 PTSD symptoms; 0-80; >=33 probable PTSD; standard clinical screen"><span class="task-icon">PCL</span>PCL-5</div>
      <div class="task-tile" data-task="AUDIT" onclick="showIntro('AUDIT')" title="AUDIT Alcohol Use — 10 WHO items; 0-40; >=8 hazardous drinking; >=20 alcohol dependence; global standard"><span class="task-icon">🍺</span>AUDIT</div>
      <div class="task-tile" data-task="ASRS" onclick="showIntro('ASRS')" title="ASRS ADHD Self-Report — 18 DSM items; Part A (6 items) is the validated screen; >=4 on Part A = positive screen for adult ADHD"><span class="task-icon">ADHD</span>ASRS</div>
      <div class="task-tile" data-task="HACHINSKI" onclick="showIntro('HACHINSKI')" title="Hachinski Ischemic Score — clinician-rated 13-item history checklist for differentiating vascular (multi-infarct) dementia from Alzheimer's/primary degenerative dementia. Hachinski et al., 1975, Arch Neurol. Items weighted 1 or 2 points. ≥7 = multi-infarct dementia; ≤4 = primary degenerative; 5–6 = mixed/indeterminate."><span class="task-icon">HIS</span>HACHINSKI</div>
      <div class="task-tile" data-task="KATZ" onclick="showIntro('KATZ')" title="Katz Index of Independence in ADLs (Katz et al., 1963, JAMA) — 6 basic activities of daily living: bathing, dressing, toileting, transferring, continence, feeding. Each scored 1 (independent) or 0 (dependent). Total 0–6. Score 6 = full function; 4 = moderate impairment; ≤2 = severe functional impairment. Standard basic-ADL screen."><span class="task-icon">ADL</span>KATZ ADL</div>
      <div class="task-tile" data-task="LAWTON" onclick="showIntro('LAWTON')" title="Lawton Instrumental ADL Scale (Lawton & Brody, 1969, Gerontologist) — 8 instrumental activities: telephone, shopping, food prep, housekeeping, laundry, transportation, medication, finances. Modern unisex 0–8 scoring. Picks up early/mild functional decline before basic ADLs are affected — key MCI / early-dementia indicator."><span class="task-icon">IADL</span>LAWTON IADL</div>
    </div>
<div class="tools-row">
      <div class="task-tile" onclick="openEditor()" style="border-color:var(--dim);width:120px;" title="Task Editor — configure trial counts, stimulus durations, ISI ranges, and other parameters for each task without touching code"><span class="task-icon" style="font-size:1rem;">⚙</span>TASK EDITOR</div>
      <div class="task-tile" onclick="openMediaPlayer()" style="border-color:rgba(200,168,75,0.2);width:120px;" title="Media Player — play video or audio alongside a task; photocell trigger fires on stimulus onset for synchronised EEG recording"><span class="task-icon" style="font-size:1rem;">▶</span>MEDIA</div>
      <div class="task-tile" onclick="CustomAudio.openPanel()" style="border-color:rgba(200,168,75,0.2);width:120px;" title="Custom Audio — load Adobe Audition (or any) WAV files into P300 stimulus slots; plays in place of synthesized tones. Files persist across sessions." id="customAudioTile"><span class="task-icon" style="font-size:1rem;">♬</span>CUSTOM AUDIO</div>
    </div>
    <div class="trials-input-row">TRIALS<input type="number" id="trialsInput" value="20" min="4" max="120" title="Number of trials for the main task run (4–120). Practice mode uses a fixed shorter count."/></div>
    <button class="sidebar-btn" style="border-color:#2a5040;color:var(--ok);font-size:0.72rem;padding:8px 20px;" onclick="showStats()" title="Session Statistics — view accuracy, mean RT, and trial counts across all tasks completed this session">▦ SESSION STATS</button>
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  <!-- INTRO SCREEN -->
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        <span id="introTrialsLabel">TRIALS FOR THIS TASK</span>
        <input type="number" id="introTrialsInput" min="1" max="2000" title="Main-run trial count for THIS task. Saved per task on this device; leave matching the default to use the shared TRIALS box." oninput="introTrialsChanged()"/>
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      </div>
      <div class="intro-actions">
        <button class="intro-btn primary" id="introPracticeBtn" onclick="startPractice()" title="Run a short practice block (5–10 trials) — results are not recorded. Familiarise yourself with the stimuli and keys before the main task.">▶ PRACTICE (5 trials)</button>
        <button class="intro-btn" onclick="skipToMain()" title="Go directly to the full main task — trials are recorded immediately">MAIN TASK →</button>
        <span class="intro-practice-note" id="introPracticeNote"></span>
      </div>
    </div>
  </div>

  <!-- PRACTICE COMPLETE -->
  <div id="practiceComplete">
    <div class="pc-title">PRACTICE COMPLETE</div>
    <div class="pc-stats" id="pcStats"></div>
    <div style="display:flex;gap:12px;">
      <button class="intro-btn primary" onclick="startMain()" title="Begin the full recorded task run using the trial count set in the sidebar">▶ BEGIN MAIN TASK</button>
      <button class="intro-btn" onclick="startPractice()" title="Run another practice block before starting the main task">↩ REPEAT PRACTICE</button>
    </div>
  </div>

  <!-- TASK SCREEN (shared for practice + main) -->
  <div id="taskscreen">
    <div class="practice-banner" id="practiceBanner" style="display:none">PRACTICE MODE — responses not recorded</div>
    <div class="task-header">
      <span class="task-label" id="th-task">GNG</span>
      <span id="th-trial">Trial 1/20</span>
    </div>
    <div class="progress-bar-wrap"><div class="progress-bar" id="progressBar" style="width:0%"></div></div>
    <div class="stim-grid" id="stimGrid"></div>
    <div class="nback-prompt" id="nbackPrompt"></div>
    <div class="controls" id="taskControls">
      <button class="ctrl-btn go-btn" onclick="respButton(true)">YES / GO</button>
      <button class="ctrl-btn nogo-btn" onclick="respButton(false)">NO / NOGO</button>
    </div>
    <div class="feedback" id="feedback"></div>
    <div class="rt-chart-wrap" id="rtChartWrap" style="display:none">
      <div class="rt-chart-header">
        RT HISTORY
        <span>AVG <span id="rtChartAvg">—</span> ms</span>
        <span>LAST <span id="rtChartLast">—</span> ms</span>
        <div class="adaptive-badge" id="adaptiveBadge">ADAPTIVE ITI OFF</div>
      </div>
      <canvas id="rtChartCanvas" width="370" height="54"></canvas>
    </div>
    <div class="key-hint" id="keyHint"></div>
  <div class="key-legend" id="main-key-legend"><span class="key-legend-item"><span class="key-cap">F</span> Yes / Go</span><span class="key-legend-sep">·</span><span class="key-legend-item"><span class="key-cap">J</span> No / NoGo</span><span class="key-legend-sep">·</span><span class="key-legend-item"><span class="key-cap">Space</span> Detect</span></div>
  </div>

  <!-- POSNER SCREEN -->
  <div id="posnerScreen">
    <div class="practice-banner" id="posPracticeBanner" style="display:none">PRACTICE MODE — responses not recorded</div>
    <div class="task-header">
      <span class="task-label">POSNER</span>
      <span id="pos-trial">Trial 1/20</span>
      <span id="pos-cue-badge" class="cue-type-badge neutral">—</span>
    </div>
    <div class="progress-bar-wrap"><div class="progress-bar" id="posProgressBar" style="width:0%"></div></div>
    <div class="posner-settings">
      <span>CUE <select id="posnerCueType" title="Endogenous: central arrow cue — voluntary attention shift. Exogenous: peripheral box flash — reflexive automatic capture."><option value="endogenous">ENDOGENOUS</option><option value="exogenous">EXOGENOUS</option></select></span>
      <span>VALIDITY <select id="posnerValidity" title="Percentage of trials where the cue correctly predicts the target side. 50% = no predictive value (exogenous baseline)."><option value="80">80%</option><option value="60">60%</option><option value="50">50%</option></select></span>
      <span>SOA ms <input type="number" id="posnerSOA" value="200" min="50" max="800" style="width:56px" title="Stimulus Onset Asynchrony — time in ms between cue onset and target onset (50–800 ms)"/></span>
    </div>
    <div class="posner-arena">
      <div class="posner-box" id="posBoxL" onclick="posnerDetect()">
        <span id="posTargetL" class="posner-target" style="opacity:0">★</span>
        <span class="posner-cue-label">LEFT</span>
      </div>
      <div class="posner-fixation">
        <span id="posCueArrow" class="posner-arrow" style="opacity:0">→</span>
        <span id="posFixDot" style="font-size:1.4rem;color:var(--dim)">+</span>
      </div>
      <div class="posner-box" id="posBoxR" onclick="posnerDetect()">
        <span id="posTargetR" class="posner-target" style="opacity:0">★</span>
        <span class="posner-cue-label">RIGHT</span>
      </div>
    </div>
    <div class="posner-info">
      <span>LAST RT <span id="pos-rt">—</span></span>
      <span>VALID RT <span id="pos-valid-rt">—</span></span>
      <span>INVALID RT <span id="pos-invalid-rt">—</span></span>
      <span>BENEFIT <span id="pos-benefit">—</span></span>
    </div>
    <div class="controls">
      <button class="ctrl-btn go-btn" onclick="posnerDetect()">DETECTED</button>
    </div>
    <div class="feedback" id="posFeedback"></div>
    <div class="key-hint" id="posKeyHint"></div>
  <div class="key-legend" id="posner-key-legend"><span class="key-legend-item"><span class="key-cap">Space</span> or <span class="key-cap">F</span> Target detected</span><span class="key-legend-sep">·</span><span class="key-legend-item">Click either box to respond</span></div>
  </div>

  <!-- MIC VALIDATION SCREEN -->
  <div id="micValidScreen">
    <div class="micv-wrap">
      <div class="micv-title">MICROPHONE CHECK</div>
      <hr class="micv-divider">

      <!-- Step 1: permission -->
      <div class="micv-step">
        <div class="micv-step-num" id="mvStep1Num">1</div>
        <div class="micv-step-body">
          <div class="micv-step-label">BROWSER PERMISSION</div>
          <div class="micv-step-sub" id="mvStep1Sub">Requesting microphone access…</div>
        </div>
      </div>

      <!-- Step 2: signal level -->
      <div class="micv-step">
        <div class="micv-step-num" id="mvStep2Num">2</div>
        <div class="micv-step-body">
          <div class="micv-step-label">SIGNAL LEVEL</div>
          <div class="micv-step-sub">Speak normally — bars should move when you talk</div>
          <div class="micv-vol-wrap" id="mvVolBars">
            <div class="micv-vol-bar" id="mvvb0" style="height:4px"></div>
            <div class="micv-vol-bar" id="mvvb1" style="height:4px"></div>
            <div class="micv-vol-bar" id="mvvb2" style="height:4px"></div>
            <div class="micv-vol-bar" id="mvvb3" style="height:4px"></div>
            <div class="micv-vol-bar" id="mvvb4" style="height:4px"></div>
            <div class="micv-vol-bar" id="mvvb5" style="height:4px"></div>
            <div class="micv-vol-bar" id="mvvb6" style="height:4px"></div>
            <div class="micv-vol-bar" id="mvvb7" style="height:4px"></div>
            <div class="micv-vol-bar" id="mvvb8" style="height:4px"></div>
            <div class="micv-vol-bar" id="mvvb9" style="height:4px"></div>
            <div class="micv-vol-bar" id="mvvb10" style="height:4px"></div>
            <div class="micv-vol-bar" id="mvvb11" style="height:4px"></div>
          </div>
          <div class="micv-status" id="mvLevelStatus">waiting for signal…</div>
        </div>
      </div>

      <!-- Step 3: recognition test -->
      <div class="micv-step">
        <div class="micv-step-num" id="mvStep3Num">3</div>
        <div class="micv-step-body">
          <div class="micv-step-label">RECOGNITION TEST</div>
          <div class="micv-step-sub">Say the word shown below clearly</div>
          <div class="micv-prompt-word" id="mvPromptWord">—</div>
          <div class="micv-heard-row" id="mvHeardRow"></div>
          <div class="micv-status" id="mvRecogStatus">waiting…</div>
        </div>
      </div>

      <hr class="micv-divider">
      <div class="micv-status" id="mvOverallStatus"></div>
      <div class="micv-actions">
        <button class="intro-btn primary" id="mvProceedBtn" onclick="mvProceed()" disabled>▶ PROCEED</button>
        <button class="intro-btn" id="mvRetryBtn" onclick="mvRetry()">↩ RETRY</button>
        <button class="intro-btn" onclick="mvSkip()" style="border-color:#1a2f44;color:var(--dim)">SKIP CHECK →</button>
      </div>
    </div>
  </div>

  <!-- FREE RECALL SCREEN -->
  <div id="frScreen">
    <div class="practice-banner" id="frPracticeBanner" style="display:none">PRACTICE MODE — results not recorded</div>

    <!-- STUDY PHASE -->
    <div id="frStudyPhase" style="display:none">
      <div class="fr-study-wrap">
        <div class="fr-phase-label">STUDY PHASE</div>
        <div class="fr-study-counter" id="frStudyCounter">Word 1 of 12</div>
        <div class="fr-study-progress"><div class="fr-study-bar" id="frStudyBar" style="width:0%"></div></div>
        <div class="fr-word-display" id="frWordDisplay">—</div>
      </div>
    </div>

    <!-- DISTRACTOR PHASE -->
    <div id="frDistractorPhase" style="display:none">
      <div class="fr-distractor-wrap">
        <div class="fr-phase-label">DISTRACTOR — mental arithmetic</div>
        <div class="fr-distractor-timer" id="frDistractorTimer">30 s remaining</div>
        <div class="fr-distractor-problem" id="frDistractorProblem">—</div>
        <input class="fr-distractor-input" id="frDistractorInput" type="number" placeholder="?" autocomplete="off" oninput="checkDistractor()"/>
        <div class="fr-distractor-fb" id="frDistractorFb"></div>
        <div style="font-size:0.75rem;color:var(--dim);margin-top:4px">type your answer and press Enter or wait</div>
      </div>
    </div>

    <!-- RECALL PHASE -->
    <div id="frRecallPhase" style="display:none">
      <div class="fr-recall-wrap">
        <div class="fr-phase-label">RECALL PHASE — type every word you remember</div>
        <div class="fr-recall-header">
          <span id="frRecallCount">0 words recalled</span>
          <span class="fr-recall-timer" id="frRecallTimer">90 s</span>
        </div>
        <input class="fr-recall-input" id="frRecallInput" type="hidden" placeholder="type a word, press Enter" autocomplete="off" autocorrect="on" spellcheck="true" onkeydown="handleRecallKey(event)"/>
        <div class="fr-recall-chips" id="frRecallChips"></div>
        <div style="display:flex;align-items:center;gap:10px;width:100%;margin-top:2px;">
          <div class="fr-recall-hint" style="flex:1">Enter = submit word · any order · fuzzy spelling OK</div>
        </div>
      </div>
    </div>

    <div id="frRecognitionPhase" style="display:none">
      <div class="fr-recall-wrap" style="align-items:center;">
        <div class="fr-phase-label">RECOGNITION — was this word on the list?</div>
        <div class="fr-recall-header" style="justify-content:center;gap:24px;">
          <span id="frRecogCount">0 / 0</span>
          <span class="fr-recall-timer" id="frRecogTimer"></span>
        </div>
        <div class="fr-word-display" id="frRecogWord" style="margin:18px 0;">—</div>
        <div style="display:flex;gap:18px;justify-content:center;margin-top:6px;">
          <button class="fr-recog-btn" id="frRecogOld" onclick="frRecogAnswer(true)">
            <span class="fr-recog-key">F</span><span class="fr-recog-lbl">OLD</span>
          </button>
          <button class="fr-recog-btn" id="frRecogNew" onclick="frRecogAnswer(false)">
            <span class="fr-recog-key">J</span><span class="fr-recog-lbl">NEW</span>
          </button>
        </div>
        <div class="feedback" id="frRecogFeedback" style="min-height:22px;margin-top:10px;"></div>
        <div class="fr-recall-hint" style="text-align:center;margin-top:4px;">Press F for OLD (on the list), J for NEW (not on the list) — or click</div>
      </div>
    </div>

    <!-- RESULTS PHASE -->
    <div id="frResultsPhase" style="display:none">
      <div class="fr-results-wrap">
        <div class="fr-results-title">RECOGNITION RESULTS</div>
        <div class="fr-metrics" id="frMetrics"></div>
        <div class="fr-serial-chart">
          <div class="fr-serial-title">RECOGNITION BY STUDY POSITION</div>
          <div class="fr-serial-bars" id="frSerialBars"></div>
          <div class="fr-serial-labels" id="frSerialLabels"></div>
        </div>
        <div style="font-size:0.78rem;color:var(--dim);letter-spacing:0.08em">STUDY LIST</div>
        <div class="fr-word-list" id="frWordList"></div>
        <div style="display:flex;gap:12px;margin-top:6px;">
          <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
          <button class="intro-btn" id="frExportBtn" onclick="exportRecallCSV()">⬇ EXPORT CSV</button>
        </div>
      </div>
    </div>
  <div class="key-legend" id="fr-key-legend"><span class="key-legend-item"><span class="key-cap">Enter</span> Submit recalled word</span><span class="key-legend-sep">·</span><span class="key-legend-item">Type freely during recall phase</span></div>
  </div>


  <!-- WCST SCREEN -->
  <div id="wcstScreen">
    <div class="practice-banner" id="wcstPracticeBanner" style="display:none">PRACTICE MODE — results not recorded</div>
    <div class="wcst-header">
      <span class="wcst-label">CARD SORT</span>
      <span id="wcst-trial">Trial 1/64</span>
      <span id="wcst-runs">Runs: 0</span>
      <span id="wcst-persev-count" style="color:var(--gold)">Persev: 0</span>
    </div>
    <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="wcstProgressBar" style="width:0%"></div></div>
    <!-- Target cards row -->
    <div style="font-size:0.75rem;color:var(--dim);letter-spacing:0.12em;align-self:center">TARGET CARDS</div>
    <div class="wcst-targets" id="wcstTargets"></div>
    <!-- Stimulus -->
    <div class="wcst-stimulus-wrap">
      <div class="wcst-stim-label">MATCH THIS CARD TO ONE OF THE TARGETS</div>
      <div id="wcstStimulus"></div>
    </div>
    <!-- Feedback -->
    <div class="feedback" id="wcstFeedback"></div>
    <div class="wcst-fb-row">
      <div>CORRECT <span id="wcst-correct">0</span></div>
      <div>ERRORS <span id="wcst-errors">0</span></div>
      <div>CONSEC <span id="wcst-consec">0</span></div>
    </div>
    <div class="wcst-persev-strip" id="wcstPersevStrip"></div>
    <div class="wcst-rule-hint" id="wcstRuleHint">Discover the sorting rule by trial and error</div>
  <div class="key-legend" id="wcst-key-legend"><span class="key-legend-item">Click a card to sort it</span><span class="key-legend-sep">·</span><span class="key-legend-item">No keyboard required</span></div>
  </div>

  <!-- STATS SCREEN -->
  <div id="statsScreen">
    <div class="stats-wrap">
      <div class="stats-title">SESSION STATISTICS</div>
      <hr class="stats-divider">
      <div id="statsContent"></div>
      <div style="display:flex;gap:12px;margin-top:8px;">
        <button class="intro-btn primary" onclick="hideAll();$('home').style.display='flex'">↩ HOME</button>
        <button class="intro-btn" onclick="exportAllCSV()">⬇ EXPORT ALL</button>
      </div>
    </div>
  </div>


  <!-- VISUAL RECOGNITION SCREEN -->
  <div id="vrtScreen" class="task-screen" style="display:none;">
    <div class="practice-banner" id="vrtPracticeBanner" style="display:none">PRACTICE MODE — results not recorded</div>
    <div class="vrt-header">
      <span class="vrt-label">VISUAL RECOG</span>
      <span id="vrt-trial">—</span>
      <span id="vrt-phase-badge" class="vrt-phase">—</span>
    </div>
    <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="vrtProgressBar" style="width:0%"></div></div>

    <!-- STUDY PHASE -->
    <div id="vrtStudyPhase" style="display:none">
      <div class="vrt-study-wrap">
        <div class="vrt-phase study" id="vrtStudyLabel">STUDY — remember these patterns</div>
        <div class="vrt-grid" id="vrtStudyGrid"></div>
        <div style="font-size:0.78rem;color:var(--dim);letter-spacing:0.08em" id="vrtStudyTimer"></div>
      </div>
    </div>

    <!-- ISI -->
    <div id="vrtISI" style="display:none">
      <div style="display:flex;flex-direction:column;align-items:center;gap:12px;">
        <div class="vrt-phase isi">RETENTION INTERVAL</div>
        <div class="vrt-countdown">
          <svg viewBox="0 0 48 48" width="48" height="48">
            <circle cx="24" cy="24" r="20" fill="none" stroke="#1a2f44" stroke-width="3"/>
            <circle id="vrtCountdownRing" cx="24" cy="24" r="20" fill="none" stroke="var(--gold)" stroke-width="3"
              stroke-dasharray="125.6" stroke-dashoffset="0" stroke-linecap="round"
              transform="rotate(-90 24 24)" style="transition:stroke-dashoffset 0.25s linear;"/>
          </svg>
          <div class="vrt-countdown-text" id="vrtCountdownText">3</div>
        </div>
      </div>
    </div>

    <!-- TEST PHASE -->
    <div id="vrtTestPhase" style="display:none">
      <div class="vrt-test-wrap">
        <div class="vrt-test-question" id="vrtTestQuestion">Which of these did you see?</div>
        <div class="vrt-test-grid pair" id="vrtTestGrid"></div>
        <div class="feedback" id="vrtFeedback"></div>
        <div style="font-size:0.78rem;color:var(--dim);letter-spacing:0.08em">click the pattern you studied</div>
      </div>
    </div>

    <!-- RESULTS -->
    <div id="vrtResultsPhase" style="display:none">
      <div class="vrt-results-wrap">
        <div class="vrt-results-title">RECOGNITION RESULTS</div>
        <div class="vrt-metrics" id="vrtMetrics"></div>
        <div class="vrt-results-grid" id="vrtResultsGrid"></div>
        <div style="display:flex;gap:12px;margin-top:8px;">
          <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
          <button class="intro-btn" onclick="exportVrtCSV()">⬇ EXPORT CSV</button>
        </div>
      </div>
    </div>
  <div class="key-legend" id="vrt-key-legend"><span class="key-legend-item"><span class="key-cap">F</span> Yes — probe was in set</span><span class="key-legend-sep">·</span><span class="key-legend-item"><span class="key-cap">J</span> No — probe was not in set</span></div>
  </div>

  <!-- CONTRAST REVERSAL SCREEN -->
  <div id="csrScreen" class="task-screen" style="display:none;">
    <div class="practice-banner" id="csrPracticeBanner" style="display:none">PRACTICE MODE</div>
    <div style="display:flex;gap:28px;align-items:center;font-size:0.88rem;color:var(--dim);">
      <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">CONTRAST REVERSAL</span>
    </div>
    <div class="progress-bar-wrap" style="width:520px"><div class="progress-bar" id="csrProgressBar" style="width:0%"></div></div>
    <div id="csrArena" style="display:none">
      <div class="csr-arena">
        <div class="csr-overlay">
          <span id="csr-trial-ov">—</span>
          <span id="csr-phase-ov" style="color:var(--dim);">—</span>
          <div class="feedback" id="csrFeedback" style="position:static;"></div>
        </div>
        <canvas id="csrCanvas" width="520" height="520" onclick="csrRespond()"></canvas>
        <div class="csr-hint">SPACE = TARGET reversal detected</div>
      </div>
    </div>
    <div id="csrResultsPhase" style="display:none">
      <div class="vrt-results-wrap">
        <div class="vrt-results-title">CSR RESULTS</div>
        <div class="vrt-metrics" id="csrMetrics"></div>
        <div class="vrt-results-grid" id="csrResultsGrid"></div>
        <div style="display:flex;gap:12px;margin-top:8px;">
          <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
          <button class="intro-btn" onclick="exportCsrCSV()">⬇ EXPORT CSV</button>
        </div>
      </div>
    </div>
  <div class="key-legend" id="csr-key-legend"><span class="key-legend-item"><span class="key-cap">Space</span> Target reversal detected</span><span class="key-legend-sep">·</span><span class="key-legend-item">Withhold on standard reversals</span></div>
  </div>

  <!-- AUDITORY P300 SCREEN -->
  <div id="p300Screen" class="task-screen" style="display:none;">
    <div class="practice-banner" id="p300PracticeBanner" style="display:none">PRACTICE MODE</div>
    <div style="display:flex;gap:28px;align-items:center;font-size:0.88rem;color:var(--dim);">
      <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">AUDITORY P300</span>
      <span id="p300-trial">—</span>
      <span id="p300-phase" style="font-size:0.75rem;letter-spacing:0.18em;color:var(--dim);">—</span>
    </div>
    <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="p300ProgressBar" style="width:0%"></div></div>
    <div id="p300Arena" style="display:none">
      <div class="p300-arena">
        <div class="p300-freq-row">
          <div>STANDARD <span id="p300-std-freq">—</span> Hz</div>
          <div>ODDBALL <span id="p300-odd-freq">—</span> Hz</div>
          <div>PROB <span id="p300-prob">—</span></div>
        </div>
        <div class="p300-stim-circle isi" id="p300Circle">+</div>
        <div class="p300-hint">SPACE when you hear the rare tone</div>
        <div class="feedback" id="p300Feedback"></div>
      </div>
    </div>
    <div id="p300ResultsPhase" style="display:none">
      <div class="vrt-results-wrap">
        <div class="vrt-results-title">P300 RESULTS</div>
        <div class="vrt-metrics" id="p300Metrics"></div>
        <div class="vrt-results-grid" id="p300ResultsGrid"></div>
        <div style="display:flex;gap:12px;margin-top:8px;">
          <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
          <button class="intro-btn" onclick="exportP300CSV()">⬇ EXPORT CSV</button>
        </div>
      </div>
    </div>
  <div class="key-legend" id="p300-key-legend"><span class="key-legend-item"><span class="key-cap">Space</span> Rare tone detected</span><span class="key-legend-sep">·</span><span class="key-legend-item">Withhold on common tones</span></div>
  </div>

  <!-- TASK EDITOR SCREEN -->
  <div id="editorScreen" style="display:none">
    <div class="editor-wrap">
      <div class="editor-title">⚙ TASK EDITOR</div>
      <div class="editor-task-tabs" id="editorTabs"></div>
      <div class="editor-desc" id="editorDesc">Select a task to configure its parameters.</div>
      <div class="editor-fields" id="editorFields"></div>
      <div class="editor-actions">
        <button class="editor-save-btn" onclick="editorSave()">✓ SAVE</button>
        <button class="editor-reset-btn" onclick="editorReset()">↺ RESET DEFAULTS</button>
        <button class="editor-reset-btn" onclick="hideAll();$('home').style.display='flex'">↩ HOME</button>
        <span class="editor-saved-badge" id="editorSavedBadge">Saved</span>
      </div>

    </div>
  </div>


  <!-- STERNBERG SCREEN -->
  <div id="stbScreen" class="task-screen" style="display:none;">
    <div class="practice-banner" id="stbPracticeBanner" style="display:none">PRACTICE MODE — results not recorded</div>
    <div class="stb-header">
      <span class="stb-label">STERNBERG</span>
      <span id="stb-trial">—</span>
      <span id="stb-phase" class="stb-phase-label">—</span>
    </div>
    <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="stbProgressBar" style="width:0%"></div></div>
    <div style="display:flex;gap:8px;align-items:center;font-size:0.78rem;color:var(--dim);letter-spacing:0.08em;" id="stbSetSizeRow">
      SET SIZES &nbsp;
      <label style="display:flex;align-items:center;gap:3px;cursor:pointer;"><input type="checkbox" id="stbSz2" value="2"> 2</label>
      <label style="display:flex;align-items:center;gap:3px;cursor:pointer;"><input type="checkbox" id="stbSz4" value="4" checked> 4</label>
      <label style="display:flex;align-items:center;gap:3px;cursor:pointer;"><input type="checkbox" id="stbSz6" value="6"> 6</label>
      <label style="display:flex;align-items:center;gap:3px;cursor:pointer;"><input type="checkbox" id="stbSz8" value="8"> 8</label>
    </div>

    <!-- STUDY: one letter at a time -->
    <div id="stbStudyPhase" style="display:none">
      <div class="stb-arena">
        <div class="stb-phase-label study" id="stbMemoriseLabel">MEMORIZE</div>
        <div class="stb-letter" id="stbStudyLetter">+</div>
      </div>
    </div>

    <!-- RETENTION ISI -->
    <div id="stbISI" style="display:none">
      <div class="stb-arena">
        <div class="stb-phase-label isi">···</div>
        <div class="stb-letter" style="color:var(--dim);font-size:3rem;line-height:96px;">+</div>
      </div>
    </div>

    <!-- PROBE -->
    <div id="stbProbePhase" style="display:none">
      <div class="stb-arena">
        <div class="stb-phase-label probe">IN THE SET?</div>
        <div class="stb-letter" id="stbProbeLetter" style="color:var(--text);">?</div>
        <div class="stb-resp-row">
          <button class="stb-resp-btn yes" id="stbYesBtn" onclick="stbRespond(true)">YES &nbsp;(F)</button>
          <button class="stb-resp-btn no"  id="stbNoBtn"  onclick="stbRespond(false)">NO &nbsp;(J)</button>
        </div>
        <div class="feedback" id="stbFeedback"></div>
      </div>
    </div>

    <!-- RESULTS -->
    <div id="stbResultsPhase" style="display:none">
      <div class="vrt-results-wrap">
        <div class="vrt-results-title">STERNBERG RESULTS</div>
        <div class="vrt-metrics" id="stbMetrics"></div>
        <div style="width:100%;max-width:460px;margin:8px 0 4px 0;">
          <div style="font-size:0.75rem;color:var(--dim);letter-spacing:0.12em;margin-bottom:6px;">RT BY SET SIZE</div>
          <canvas id="stbRtChart" width="460" height="140" style="display:block;width:100%;background:#060d14;border:1px solid #1a2f44;"></canvas>
          <div style="font-size:0.72rem;color:var(--dim);letter-spacing:0.06em;margin-top:4px;display:flex;gap:16px;" id="stbChartLegend"></div>
        </div>
        <div class="vrt-results-grid" id="stbResultsGrid"></div>
        <div style="display:flex;gap:12px;margin-top:8px;">
          <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
          <button class="intro-btn" onclick="exportStbCSV()">⬇ EXPORT CSV</button>
        </div>
      </div>
    </div>

    <div class="key-legend">
      <span class="key-legend-item"><span class="key-cap">F</span> Yes — in set</span>
      <span class="key-legend-sep">·</span>
      <span class="key-legend-item"><span class="key-cap">J</span> No — not in set</span>
      <span class="key-legend-sep">·</span>
      <span class="key-legend-item">One letter shown at a time</span>
    </div>
  </div>


    <!-- MEDIA PLAYER -->
  <!-- N400 SCREEN -->
  <div id="n400Screen" class="task-screen" style="display:none;">
    <div class="practice-banner" id="n400PracticeBanner" style="display:none">PRACTICE MODE — results not recorded</div>
    <div class="stb-header">
      <span class="stb-label">N400</span>
      <span id="n400-trial">—</span>
      <span id="n400-phase-lbl" class="stb-phase-label">—</span>
    </div>
    <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="n400ProgressBar" style="width:0%"></div></div>
    <div id="n400StimPhase" style="display:none;flex-direction:column;align-items:center;gap:0;">
      <div class="stb-arena" style="gap:10px;min-height:160px;">
        <div class="stb-phase-label study" id="n400PhaseLabel">—</div>
        <div id="n400Word" style="min-height:80px;max-width:520px;display:flex;align-items:center;justify-content:center;text-align:center;padding:0 20px;">+</div>
        <div style="font-size:0.78rem;color:var(--dim);letter-spacing:0.12em;margin-top:4px;" id="n400KeyHint">—</div>
        <div class="stb-resp-row" id="n400RespRow" style="display:none;">
          <button class="stb-resp-btn yes" onclick="n400Respond('FIT')">FITS &nbsp;(F)</button>
          <button class="stb-resp-btn no"  onclick="n400Respond('ODD')">DOESN'T FIT &nbsp;(J)</button>
        </div>
        <div class="feedback" id="n400Feedback"></div>
      </div>
    </div>
    <div id="n400ResultsPhase" style="display:none;">
      <div class="vrt-results-wrap">
        <div class="vrt-results-title">N400 RESULTS</div>
        <div class="vrt-metrics" id="n400Metrics"></div>
        <div style="width:100%;max-width:460px;margin:8px 0 4px;">
          <div style="font-size:0.75rem;color:var(--dim);letter-spacing:0.12em;margin-bottom:6px;">RT BY CONDITION</div>
          <canvas id="n400Chart" width="460" height="140" style="display:block;width:100%;background:#060d14;border:1px solid #1a2f44;"></canvas>
        </div>
        <div id="n400ResultsGrid" style="font-size:0.8rem;max-height:180px;overflow-y:auto;width:100%;max-width:460px;"></div>
        <div style="display:flex;gap:12px;margin-top:8px;">
          <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
          <button class="intro-btn" onclick="n400ExportCSV()">⬇ EXPORT CSV</button>
        </div>
      </div>
    </div>
  </div>

  <!-- FLANKER SCREEN -->
  <div id="flankerScreen" class="task-screen" style="display:none;">
    <div class="practice-banner" id="flankerPracticeBanner" style="display:none">PRACTICE MODE</div>
    <div class="stb-header"><span class="stb-label">FLANKER</span><span id="flanker-trial">—</span><span id="flanker-phase" class="stb-phase-label">—</span></div>
    <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="flankerProgressBar" style="width:0%"></div></div>
    <div id="flankerStimPhase" style="display:none;flex-direction:column;align-items:center;gap:8px;">
      <div class="stb-arena">
        <div id="flankerStim" style="font-size:2.8rem;letter-spacing:0.18em;color:#e8e0d0;font-family:'Source Code Pro',monospace;min-width:220px;text-align:center;">+</div>
        <div class="stb-resp-row" id="flankerRespRow" style="display:none;">
          <button class="stb-resp-btn yes" onclick="flankerRespond('L')">← LEFT &nbsp;(F)</button>
          <button class="stb-resp-btn no"  onclick="flankerRespond('R')">RIGHT → &nbsp;(J)</button>
        </div>
        <div class="feedback" id="flankerFeedback"></div>
      </div>
    </div>
    <div id="flankerResultsPhase" style="display:none;">
      <div class="vrt-results-wrap">
        <div class="vrt-results-title">FLANKER RESULTS</div>
        <div class="vrt-metrics" id="flankerMetrics"></div>
        <canvas id="flankerChart" width="460" height="140" style="display:block;width:100%;max-width:460px;background:#060d14;border:1px solid #1a2f44;margin:8px 0;"></canvas>
        <div style="display:flex;gap:12px;margin-top:8px;">
          <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
          <button class="intro-btn" onclick="flankerExportCSV()">⬇ CSV</button>
        </div>
      </div>
    </div>
  </div>

  <!-- STOP SIGNAL SCREEN -->
  <div id="stopScreen" class="task-screen" style="display:none;">
    <div class="practice-banner" id="stopPracticeBanner" style="display:none">PRACTICE MODE</div>
    <div class="stb-header"><span class="stb-label">STOP SIGNAL</span><span id="stop-trial">—</span><span id="stop-phase" class="stb-phase-label">—</span></div>
    <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="stopProgressBar" style="width:0%"></div></div>
    <div id="stopStimPhase" style="display:none;flex-direction:column;align-items:center;">
      <div class="stb-arena">
        <div id="stopStim" style="font-size:3.5rem;color:#e8e0d0;font-family:'Source Code Pro',monospace;min-width:120px;text-align:center;">+</div>
        <div id="stopSignalIndicator" style="font-size:0.75rem;letter-spacing:0.15em;color:#e57373;font-family:'Source Code Pro',monospace;min-height:1.4em;margin-top:4px;"></div>
        <div class="stb-resp-row" id="stopRespRow" style="display:none;">
          <button class="stb-resp-btn yes" onclick="stopRespond('L')">← LEFT &nbsp;(F)</button>
          <button class="stb-resp-btn no"  onclick="stopRespond('R')">RIGHT → &nbsp;(J)</button>
        </div>
        <div class="feedback" id="stopFeedback"></div>
      </div>
    </div>
    <div id="stopResultsPhase" style="display:none;">
      <div class="vrt-results-wrap">
        <div class="vrt-results-title">STOP SIGNAL RESULTS</div>
        <div class="vrt-metrics" id="stopMetrics"></div>
        <div style="display:flex;gap:12px;margin-top:8px;">
          <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
          <button class="intro-btn" onclick="stopExportCSV()">⬇ CSV</button>
        </div>
      </div>
    </div>
  </div>

  <!-- MMN SCREEN -->
  <div id="mmnScreen" class="task-screen" style="display:none;">
    <div class="practice-banner" id="mmnPracticeBanner" style="display:none">PRACTICE MODE</div>
    <div class="stb-header"><span class="stb-label">MMN</span><span id="mmn-trial">—</span><span id="mmn-phase" class="stb-phase-label">—</span></div>
    <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="mmnProgressBar" style="width:0%"></div></div>
    <div id="mmnStimPhase" style="display:none;flex-direction:column;align-items:center;">
      <div class="stb-arena" style="min-height:180px;">
        <div style="font-size:0.8rem;letter-spacing:0.16em;color:var(--dim);font-family:'Source Code Pro',monospace;">PASSIVE — NO RESPONSE NEEDED</div>
        <div id="mmnToneIndicator" style="width:80px;height:80px;border-radius:50%;border:2px solid #1a2f44;display:flex;align-items:center;justify-content:center;font-size:0.78rem;font-family:'Source Code Pro',monospace;color:var(--dim);transition:all 0.1s;text-align:center;">WAIT</div>
        <div id="mmnFreqLabel" style="font-size:0.78rem;color:var(--dim);font-family:'Source Code Pro',monospace;letter-spacing:0.1em;margin-top:4px;">—</div>
      </div>
    </div>
    <div id="mmnResultsPhase" style="display:none;">
      <div class="vrt-results-wrap">
        <div class="vrt-results-title">MMN RESULTS</div>
        <div class="vrt-metrics" id="mmnMetrics"></div>
        <div style="display:flex;gap:12px;margin-top:8px;">
          <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
          <button class="intro-btn" onclick="mmnExportCSV()">⬇ CSV</button>
        </div>
      </div>
    </div>
  </div>

  <!-- P600 SCREEN -->
  <div id="p600Screen" class="task-screen" style="display:none;">
    <div class="practice-banner" id="p600PracticeBanner" style="display:none">PRACTICE MODE</div>
    <div class="stb-header"><span class="stb-label">P600</span><span id="p600-trial">—</span><span id="p600-phase" class="stb-phase-label">—</span></div>
    <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="p600ProgressBar" style="width:0%"></div></div>
    <div id="p600StimPhase" style="display:none;flex-direction:column;align-items:center;">
      <div class="stb-arena" style="min-height:160px;gap:10px;">
        <div class="stb-phase-label study" id="p600PhaseLabel">—</div>
        <div id="p600Word" style="min-height:80px;max-width:540px;display:flex;align-items:center;justify-content:center;text-align:center;padding:0 24px;font-size:2.2rem;color:#d4a520;font-family:'EB Garamond',serif;">+</div>
        <div id="p600KeyHint" style="font-size:0.78rem;color:var(--dim);letter-spacing:0.12em;"></div>
        <div class="stb-resp-row" id="p600RespRow" style="display:none;">
          <button class="stb-resp-btn yes" onclick="p600Respond('OK')">CORRECT &nbsp;(F)</button>
          <button class="stb-resp-btn no"  onclick="p600Respond('ERR')">VIOLATION &nbsp;(J)</button>
        </div>
        <div class="feedback" id="p600Feedback"></div>
      </div>
    </div>
    <div id="p600ResultsPhase" style="display:none;">
      <div class="vrt-results-wrap">
        <div class="vrt-results-title">P600 RESULTS</div>
        <div class="vrt-metrics" id="p600Metrics"></div>
        <canvas id="p600Chart" width="460" height="140" style="display:block;width:100%;max-width:460px;background:#060d14;border:1px solid #1a2f44;margin:8px 0;"></canvas>
        <div style="display:flex;gap:12px;margin-top:8px;">
          <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
          <button class="intro-btn" onclick="p600ExportCSV()">⬇ CSV</button>
        </div>
      </div>
    </div>
  </div>

  <!-- FINGER TAPPING SCREEN -->
  <div id="fttScreen" class="task-screen" style="display:none;">
    <div class="practice-banner" id="fttPracticeBanner" style="display:none">PRACTICE MODE</div>
    <div class="stb-header"><span class="stb-label">FINGER TAPPING</span><span id="ftt-trial">—</span><span id="ftt-phase" class="stb-phase-label">—</span></div>
    <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="fttProgressBar" style="width:0%"></div></div>
    <div id="fttStimPhase" style="display:none;flex-direction:column;align-items:center;gap:10px;">
      <div class="ftt-subtest-label" id="fttSubLabel">DOMINANT HAND</div>
      <div class="ftt-arena">
        <!-- Unimanual button (dominant / non-dominant) -->
        <div id="fttUniWrap" style="display:none;flex-direction:column;align-items:center;gap:10px;">
          <div class="ftt-counter" id="fttCount">0</div>
          <button class="ftt-tap-btn" id="fttTapBtn" onpointerdown="fttTap(event)">●</button>
          <div class="ftt-timer-ring" id="fttTimerTxt">— s remaining</div>
        </div>
        <!-- Alternating buttons -->
        <div id="fttAltWrap" style="display:none;flex-direction:column;align-items:center;gap:10px;">
          <div class="ftt-counter" id="fttAltCount">0</div>
          <div class="ftt-alt-row">
            <button class="ftt-alt-btn" id="fttBtnL" onpointerdown="fttAltTap('L',event)">◀</button>
            <div style="font-size:0.78rem;color:var(--dim);letter-spacing:0.1em;">ALT</div>
            <button class="ftt-alt-btn" id="fttBtnR" onpointerdown="fttAltTap('R',event)">▶</button>
          </div>
          <div class="ftt-timer-ring" id="fttAltTimerTxt">— s remaining</div>
        </div>
      </div>
      <div class="ftt-iti-msg" id="fttItiMsg"></div>
      <div class="feedback" id="fttFeedback"></div>
    </div>
    <div id="fttResultsPhase" style="display:none;">
      <div class="vrt-results-wrap">
        <div class="vrt-results-title">FINGER TAPPING RESULTS</div>
        <div class="vrt-metrics" id="fttMetrics"></div>
        <div style="display:flex;gap:12px;margin-top:8px;">
          <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
          <button class="intro-btn" onclick="fttExportCSV()">⬇ CSV</button>
        </div>
      </div>
    </div>
  </div>

  <!-- CNV SCREEN -->
  <div id="cnvScreen" class="task-screen" style="display:none;">
    <div class="practice-banner" id="cnvPracticeBanner" style="display:none">PRACTICE MODE</div>
    <div class="stb-header"><span class="stb-label">CNV</span><span id="cnv-trial">—</span><span id="cnv-phase" class="stb-phase-label">—</span></div>
    <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="cnvProgressBar" style="width:0%"></div></div>
    <div id="cnvStimPhase" style="display:none;flex-direction:column;align-items:center;gap:10px;">
      <div style="font-size:0.78rem;color:var(--dim);letter-spacing:0.1em;" id="cnvInstruct">Press SPACE — or click a button below — when the circle turns gold</div>
      <div class="cnv-arena">
        <div class="cnv-circle" id="cnvCircle">+</div>
        <div class="cnv-fp-bar-wrap"><div class="cnv-fp-bar" id="cnvFpBar"></div></div>
      </div>
      <div style="font-size:0.75rem;color:var(--dim);letter-spacing:0.08em;" id="cnvTrialType"></div>
      <div class="feedback" id="cnvFeedback"></div>
    </div>
    <div id="cnvResultsPhase" style="display:none;">
      <div class="vrt-results-wrap">
        <div class="vrt-results-title">CNV RESULTS</div>
        <div class="vrt-metrics" id="cnvMetrics"></div>
        <div style="display:flex;gap:12px;margin-top:8px;">
          <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
          <button class="intro-btn" onclick="cnvExportCSV()">⬇ CSV</button>
        </div>
      </div>
    </div>
  </div>

  <!-- DIGIT SPAN SCREEN -->
  <div id="dstScreen" class="task-screen" style="display:none;">
    <div class="practice-banner" id="dstPracticeBanner" style="display:none">PRACTICE MODE</div>
    <div class="stb-header"><span class="stb-label">DIGIT SPAN</span><span id="dst-trial">—</span><span id="dst-phase" class="stb-phase-label">—</span></div>
    <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="dstProgressBar" style="width:0%"></div></div>
    <div id="dstStimPhase" style="display:none;flex-direction:column;align-items:center;gap:12px;">
      <div style="font-size:0.82rem;color:var(--dim);letter-spacing:0.12em;" id="dstSubtestLabel">FORWARD SPAN</div>
      <div style="font-size:0.78rem;color:var(--dim);letter-spacing:0.1em;" id="dstInstruct">Watch the digits…</div>
      <!-- digits shown one at a time -->
      <div style="width:220px;height:80px;display:flex;align-items:center;justify-content:center;">
        <div id="dstBigDigit" style="font-size:5rem;font-family:'Source Code Pro',monospace;color:var(--gold);min-width:60px;text-align:center;"></div>
      </div>
      <!-- sequence length tracker dots -->
      <div class="dst-digit-display" id="dstDots"></div>
      <!-- recall entry -->
      <div id="dstRecallWrap" style="display:none;flex-direction:column;align-items:center;gap:10px;">
        <div style="font-size:0.82rem;color:var(--dim);letter-spacing:0.1em;" id="dstRecallInstruct">Enter the sequence:</div>
        <div class="dst-digit-display" id="dstEnteredDigits" style="min-height:40px;min-width:200px;border:1px solid #1a2f44;padding:6px 12px;"></div>
        <div class="dst-numpad">
          <button class="dst-numpad-btn" onclick="dstEntry(1)">1</button>
          <button class="dst-numpad-btn" onclick="dstEntry(2)">2</button>
          <button class="dst-numpad-btn" onclick="dstEntry(3)">3</button>
          <button class="dst-numpad-btn" onclick="dstEntry(4)">4</button>
          <button class="dst-numpad-btn" onclick="dstEntry(5)">5</button>
          <button class="dst-numpad-btn" onclick="dstEntry(6)">6</button>
          <button class="dst-numpad-btn" onclick="dstEntry(7)">7</button>
          <button class="dst-numpad-btn" onclick="dstEntry(8)">8</button>
          <button class="dst-numpad-btn" onclick="dstEntry(9)">9</button>
          <button class="dst-numpad-btn" onclick="dstBackspace()" style="font-size:0.75rem;">⌫</button>
          <button class="dst-numpad-btn" onclick="dstEntry(0)">0</button>
          <button class="dst-numpad-btn" onclick="dstSubmit()" style="border-color:var(--gold);color:var(--gold);font-size:0.88rem;">✓</button>
        </div>
      </div>
      <div class="feedback" id="dstFeedback"></div>
    </div>
    <div id="dstResultsPhase" style="display:none;">
      <div class="vrt-results-wrap">
        <div class="vrt-results-title">DIGIT SPAN RESULTS</div>
        <div class="vrt-metrics" id="dstMetrics"></div>
        <div style="display:flex;gap:12px;margin-top:8px;">
          <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
          <button class="intro-btn" onclick="dstExportCSV()">⬇ CSV</button>
        </div>
      </div>
    </div>
  </div>

  <!-- STROOP SCREEN -->
  <div id="stroopScreen" class="task-screen" style="display:none;">
    <div class="practice-banner" id="stroopPracticeBanner" style="display:none">PRACTICE MODE</div>
    <div class="stb-header"><span class="stb-label">STROOP</span><span id="stroop-trial">—</span><span id="stroop-phase" class="stb-phase-label">—</span></div>
    <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="stroopProgressBar" style="width:0%"></div></div>
    <div id="stroopStimPhase" style="display:none;flex-direction:column;align-items:center;gap:10px;">
      <div class="stb-arena" style="gap:14px;">
        <div id="stroopFixation" style="font-size:2rem;color:var(--dim);min-height:60px;display:flex;align-items:center;justify-content:center;">+</div>
        <div id="stroopWord" style="font-size:3.2rem;font-family:'EB Garamond',serif;font-weight:600;letter-spacing:0.08em;min-height:80px;min-width:240px;text-align:center;display:none;line-height:1;"></div>
        <div id="stroopTimer" style="font-size:0.78rem;color:var(--dim);letter-spacing:0.1em;font-family:'Source Code Pro',monospace;min-height:1.2em;"></div>
        <div id="stroopColorBtns" style="display:none;flex-wrap:wrap;gap:8px;justify-content:center;max-width:340px;">
          <button class="stroop-resp-btn" style="border-color:#e05c5c;color:#e05c5c;" onclick="stroopRespond('red')">RED &nbsp;(F)</button>
          <button class="stroop-resp-btn" style="border-color:#4ec994;color:#4ec994;" onclick="stroopRespond('green')">GREEN (G)</button>
          <button class="stroop-resp-btn" style="border-color:#5b9fda;color:#5b9fda;" onclick="stroopRespond('blue')">BLUE &nbsp;(H)</button>
          <button class="stroop-resp-btn" style="border-color:#c8a84b;color:#c8a84b;" onclick="stroopRespond('yellow')">YELLOW (J)</button>
        </div>
        <div class="feedback" id="stroopFeedback"></div>
      </div>
    </div>
    <div id="stroopResultsPhase" style="display:none;">
      <div class="vrt-results-wrap">
        <div class="vrt-results-title">STROOP RESULTS</div>
        <div class="vrt-metrics" id="stroopMetrics"></div>
        <div style="display:flex;gap:12px;margin-top:8px;">
          <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
          <button class="intro-btn" onclick="stroopExportCSV()">⬇ CSV</button>
        </div>
      </div>
    </div>
  </div>

  <!-- ERN SCREEN -->
  <div id="ernScreen" class="task-screen" style="display:none;">
    <div class="practice-banner" id="ernPracticeBanner" style="display:none">PRACTICE MODE</div>
    <div class="stb-header"><span class="stb-label">ERN</span><span id="ern-trial">—</span><span id="ern-phase" class="stb-phase-label">—</span></div>
    <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="ernProgressBar" style="width:0%"></div></div>
    <div id="ernStimPhase" style="display:none;flex-direction:column;align-items:center;">
      <div class="stb-arena">
        <div id="ernStim" style="font-size:3rem;letter-spacing:0.15em;color:#e8e0d0;font-family:'Source Code Pro',monospace;min-width:200px;text-align:center;">+</div>
        <div id="ernTimer" style="font-size:0.78rem;color:var(--dim);letter-spacing:0.1em;font-family:'Source Code Pro',monospace;min-height:1.2em;"></div>
        <div class="stb-resp-row" id="ernRespRow" style="display:none;">
          <button class="stb-resp-btn yes" onclick="ernRespond('L')">← LEFT &nbsp;(F)</button>
          <button class="stb-resp-btn no"  onclick="ernRespond('R')">RIGHT → &nbsp;(J)</button>
        </div>
        <div class="feedback" id="ernFeedback"></div>
      </div>
    </div>
    <div id="ernResultsPhase" style="display:none;">
      <div class="vrt-results-wrap">
        <div class="vrt-results-title">ERN RESULTS</div>
        <div class="vrt-metrics" id="ernMetrics"></div>
        <div style="display:flex;gap:12px;margin-top:8px;">
          <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
          <button class="intro-btn" onclick="ernExportCSV()">⬇ CSV</button>
        </div>
      </div>
    </div>
  </div>

    <div class="scr" id="scr-media" style="display:none">
      <!-- Drop zone (shown when no file loaded) -->
      <div class="mp-drop" id="mp-drop" onclick="mpPickFile()">
        <div class="mp-drop-icon">▶</div>
        <div class="mp-drop-txt">Drop a video or audio file</div>
        <div class="mp-drop-sub">or click to browse &nbsp;·&nbsp; MP4 · MOV · WEBM · MP3 · WAV · OGG</div>
        <input type="file" id="mp-file-input" accept="video/*,audio/*" onchange="mpLoadFile(this)">
      </div>

      <!-- Player (shown once file loaded) -->
      <div class="mp-main" id="mp-main" style="display:none">
        <div class="mp-video-wrap" id="mp-media-wrap">
          <video id="mp-video" preload="metadata"></video>
          <div id="mp-audio-vis" style="display:none">
            <div class="mp-audio-icon">♪</div>
          </div>
          <div class="mp-audio-title" id="mp-audio-title"></div>
        </div>

        <div class="mp-controls">
          <input type="range" class="mp-seek" id="mp-seek" value="0" min="0" step="0.01" oninput="mpSeek(this.value)">
          <div class="mp-btn-row">
            <button class="mp-btn" onclick="mpSkip(-10)" title="Back 10s">⏮</button>
            <button class="mp-btn big" id="mp-play-btn" onclick="mpTogglePlay()">▶</button>
            <button class="mp-btn" onclick="mpSkip(10)" title="Forward 10s">⏭</button>
            <span class="mp-time" id="mp-time">0:00 / 0:00</span>
            <div class="mp-vol-row">
              <span style="font-size:.7rem;color:rgba(100,160,200,0.4);">🔊</span>
              <input type="range" class="mp-vol" id="mp-vol" min="0" max="1" step="0.01" value="1" oninput="mpSetVol(this.value)">
            </div>
            <span class="mp-fname" id="mp-fname"></span>
            <button class="mp-trig-badge" id="mp-trig-tog" onclick="mpTrigToggle()">⬡ TRIG ON</button>
            <button class="mp-open-btn" title="Open new file">
              ⏏ OPEN
              <input type="file" accept="video/*,audio/*" onchange="mpLoadFile(this)">
            </button>
            <button class="mp-btn" onclick="openMediaPlayer(false)" title="Close player" style="color:rgba(100,160,200,0.4);font-size:.8rem;">✕</button>
          </div>
        </div>
      </div>
    </div>


<!-- ═══════ N200 / NoGo N2 SCREEN ═══════ -->
<div id="n200Screen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="n200PracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">N200 / NoGo N2</span>
    <span id="n200-trial">—</span><span id="n200-phase" style="font-size:0.75rem;letter-spacing:0.18em;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="n200ProgressBar" style="width:0%"></div></div>
  <div id="n200StimPhase" style="display:none;flex-direction:column;align-items:center;gap:10px;">
    <div id="n200Stim" style="font-size:5rem;width:120px;height:120px;display:flex;align-items:center;justify-content:center;border:2px solid #1a2f44;border-radius:50%;transition:border-color 0.08s,background 0.08s;"></div>
    <div class="feedback" id="n200Feedback"></div>
    <div class="key-hint">F = GO &nbsp;·&nbsp; J = NO-GO</div>
  </div>
  <div id="n200ResultsPhase" style="display:none">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">N200 RESULTS</div>
      <div class="vrt-metrics" id="n200Metrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="n200ExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<!-- ═══════ N170 FACE SCREEN ═══════ -->
<div id="n170Screen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="n170PracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">N170 FACE/OBJECT</span>
    <span id="n170-trial">—</span><span id="n170-phase" style="font-size:0.75rem;letter-spacing:0.18em;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="n170ProgressBar" style="width:0%"></div></div>
  <div id="n170StimPhase" style="display:none;flex-direction:column;align-items:center;gap:12px;">
    <div id="n170Canvas" style="width:240px;height:240px;border:1px solid #1a2f44;background:#060d14;display:flex;align-items:center;justify-content:center;position:relative;">
      <canvas id="n170Cvs" width="240" height="240"></canvas>
    </div>
    <div id="n170Label" style="font-size:0.8rem;color:var(--dim);letter-spacing:0.15em;min-height:18px;"></div>
    <div class="feedback" id="n170Feedback"></div>
    <div class="key-hint">F = FACE &nbsp;·&nbsp; J = OBJECT &nbsp;·&nbsp; or click a button below</div>
  </div>
  <div id="n170ResultsPhase" style="display:none">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">N170 RESULTS</div>
      <div class="vrt-metrics" id="n170Metrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="n170ExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>


<!-- ═══════ N2pc SCREEN ═══════ -->
<!-- ═══════ LRP SCREEN ═══════ -->
<div id="lrpScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="lrpPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">LATERALIZED READINESS</span>
    <span id="lrp-trial">—</span><span id="lrp-phase" style="font-size:0.75rem;letter-spacing:0.18em;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="lrpProgressBar" style="width:0%"></div></div>
  <div id="lrpStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div style="display:flex;gap:60px;align-items:center;">
      <div id="lrpLeft"  style="width:80px;height:80px;border:2px solid #1a2f44;border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:2.2rem;transition:all 0.08s;">←</div>
      <div id="lrpFix"   style="font-size:2rem;color:var(--mid);">+</div>
      <div id="lrpRight" style="width:80px;height:80px;border:2px solid #1a2f44;border-radius:4px;display:flex;align-items:center;justify-content:center;font-size:2.2rem;transition:all 0.08s;">→</div>
    </div>
    <div class="feedback" id="lrpFeedback"></div>
    <div class="key-hint">F = Left hand &nbsp;·&nbsp; J = Right hand &nbsp;·&nbsp; or click a button below</div>
  </div>
  <div id="lrpResultsPhase" style="display:none">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">LRP RESULTS</div>
      <div class="vrt-metrics" id="lrpMetrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="lrpExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<div id="n2pcScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="n2pcPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">N2pc VISUAL SEARCH</span>
    <span id="n2pc-trial">—</span><span id="n2pc-phase" style="font-size:0.75rem;letter-spacing:0.18em;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="n2pcProgressBar" style="width:0%"></div></div>
  <div id="n2pcStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <canvas id="n2pcCvs" width="640" height="420" style="border:1px solid #1a2f44;background:#060d14;"></canvas>
    <div class="feedback" id="n2pcFeedback"></div>
    <div class="key-hint">F = Target on LEFT &nbsp;·&nbsp; J = Target on RIGHT &nbsp;·&nbsp; or click a button below</div>
  </div>
  <div id="n2pcResultsPhase" style="display:none">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">N2pc RESULTS</div>
      <div class="vrt-metrics" id="n2pcMetrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="n2pcExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<!-- ═══════ N300 SCREEN ═══════ -->
<div id="n300Screen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="n300PracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">N300 OBJECT PRIMING</span>
    <span id="n300-trial">—</span><span id="n300-phase" style="font-size:0.75rem;letter-spacing:0.18em;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="n300ProgressBar" style="width:0%"></div></div>
  <div id="n300StimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div style="display:flex;gap:40px;align-items:center;justify-content:center;">
      <div style="display:flex;flex-direction:column;align-items:center;gap:4px;">
        <div style="font-size:0.7rem;color:var(--dim);letter-spacing:0.1em;">PRIME</div>
        <div id="n300Prime" style="font-size:4rem;width:100px;height:100px;display:flex;align-items:center;justify-content:center;border:1px solid #1a2f44;background:#0a1620;"></div>
      </div>
      <div id="n300Arrow" style="font-size:1.5rem;color:var(--dim);">→</div>
      <div style="display:flex;flex-direction:column;align-items:center;gap:4px;">
        <div style="font-size:0.7rem;color:var(--dim);letter-spacing:0.1em;">TARGET</div>
        <div id="n300Target" style="font-size:4rem;width:100px;height:100px;display:flex;align-items:center;justify-content:center;border:1px solid #1a2f44;background:#0a1620;"></div>
      </div>
    </div>
    <div class="feedback" id="n300Feedback"></div>
    <div class="key-hint">F = SAME category &nbsp;·&nbsp; J = DIFFERENT category &nbsp;·&nbsp; or click a button below</div>
  </div>
  <div id="n300ResultsPhase" style="display:none">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">N300 RESULTS</div>
      <div class="vrt-metrics" id="n300Metrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="n300ExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<!-- ═══════ ELAN SCREEN ═══════ -->
<div id="elanScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="elanPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">ELAN SYNTACTIC</span>
    <span id="elan-trial">—</span><span id="elan-phase" style="font-size:0.75rem;letter-spacing:0.18em;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="elanProgressBar" style="width:0%"></div></div>
  <div id="elanStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div id="elanSentence" style="font-family:'EB Garamond',serif;font-size:1.6rem;color:var(--text);min-height:3rem;text-align:center;max-width:500px;line-height:1.6;letter-spacing:0.04em;"></div>
    <div id="elanWordStream" style="font-family:'EB Garamond',serif;font-size:2.4rem;color:var(--gold2);min-height:3rem;min-width:260px;text-align:center;letter-spacing:0.06em;"></div>
    <div class="feedback" id="elanFeedback"></div>
    <div class="key-hint">F = GRAMMATICAL &nbsp;·&nbsp; J = VIOLATION &nbsp;·&nbsp; or click a button below</div>
  </div>
  <div id="elanResultsPhase" style="display:none">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">ELAN RESULTS</div>
      <div class="vrt-metrics" id="elanMetrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="elanExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<!-- ═══════ BEREITSCHAFTSPOTENTIAL SCREEN ═══════ -->
<div id="bpScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="bpPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">READINESS POTENTIAL (BP)</span>
    <span id="bp-trial">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="bpProgressBar" style="width:0%"></div></div>
  <div id="bpStimPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;">
    <div id="bpCircle" style="width:120px;height:120px;border-radius:50%;border:2px solid #1a2f44;background:#0a1620;display:flex;align-items:center;justify-content:center;font-size:2rem;color:var(--mid);transition:all 0.2s;"></div>
    <div id="bpInstruct" style="font-size:0.85rem;color:var(--dim);letter-spacing:0.12em;text-align:center;max-width:380px;line-height:1.7;"></div>
    <div class="feedback" id="bpFeedback"></div>
    <div class="key-hint">SPACE = voluntary keypress (whenever you feel ready)</div>
  </div>
  <div id="bpResultsPhase" style="display:none">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">READINESS POTENTIAL RESULTS</div>
      <div class="vrt-metrics" id="bpMetrics"></div>
      <div id="bpIITChart" style="margin-top:10px;max-width:520px;"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="bpExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<!-- ═══════ MMN SPEECH SCREEN ═══════ -->
<div id="mmnspeechScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="mmnspeechPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">MMN — SPEECH</span>
    <span id="mmns-trial">—</span><span id="mmns-phase" style="font-size:0.75rem;letter-spacing:0.18em;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="mmnsProgressBar" style="width:0%"></div></div>
  <div id="mmnsStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div id="mmnsCircle" style="width:100px;height:100px;border-radius:50%;border:2px solid #1a2f44;background:#0a1620;display:flex;align-items:center;justify-content:center;font-size:2.2rem;color:var(--mid);">+</div>
    <div id="mmnsLabel" style="font-size:1.4rem;color:var(--gold2);font-family:'EB Garamond',serif;letter-spacing:0.1em;min-height:2rem;text-align:center;"></div>
    <div style="font-size:0.78rem;color:var(--dim);letter-spacing:0.1em;">Passive listening — no response required</div>
    <div class="feedback" id="mmnsFeedback"></div>
  </div>
  <div id="mmnsResultsPhase" style="display:none">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">MMN SPEECH RESULTS</div>
      <div class="vrt-metrics" id="mmnsMetrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="mmnsExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<!-- ═══════ SSVEP SCREEN ═══════ -->
<div id="ssvepScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="ssvepPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">SSVEP</span>
    <span id="ssvep-trial">—</span><span id="ssvep-phase" style="font-size:0.75rem;letter-spacing:0.18em;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="ssvepProgressBar" style="width:0%"></div></div>
  <div id="ssvepStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div style="display:flex;gap:40px;align-items:center;justify-content:center;">
      <div style="display:flex;flex-direction:column;align-items:center;gap:8px;">
        <div id="ssvepLeft" style="width:160px;height:160px;background:#060d14;border:1px solid #1a2f44;display:flex;align-items:center;justify-content:center;font-size:3rem;"></div>
        <div id="ssvepLeftFreq" style="font-size:0.75rem;color:var(--dim);letter-spacing:0.12em;">— Hz</div>
      </div>
      <div style="display:flex;flex-direction:column;align-items:center;gap:8px;">
        <div id="ssvepFix" style="height:160px;display:flex;align-items:center;justify-content:center;color:var(--gold);font-size:1.8rem;font-weight:600;line-height:1;">+</div>
        <div style="font-size:0.75rem;color:transparent;letter-spacing:0.12em;">—</div>
      </div>
      <div style="display:flex;flex-direction:column;align-items:center;gap:8px;">
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    <div class="feedback" id="ssvepFeedback"></div>
  </div>
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    <div class="vrt-results-wrap">
      <div class="vrt-results-title">SSVEP RESULTS</div>
      <div class="vrt-metrics" id="ssvepMetrics"></div>
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<script>

// ═══════════════════════════════════════════════════════════
// UNIVERSAL PAUSE / RESUME  (press P)
// ───────────────────────────────────────────────────────────
// Works for EVERY task without per-engine changes by wrapping the global
// timing primitives. Every engine schedules via the bare global setTimeout /
// setInterval / requestAnimationFrame, so freezing those freezes the whole
// battery mid-trial. On pause: pending setTimeouts have their remaining time
// recorded and are cleared; intervals are suspended; RAF callbacks are held;
// playing audio/video is paused. On resume: timeouts are rescheduled with
// their remaining time, intervals restart, held RAF callbacks fire, media
// resumes — so each task continues exactly where it left off.
(function(){
  var _setTimeout = window.setTimeout.bind(window);
  var _clearTimeout = window.clearTimeout.bind(window);
  var _setInterval = window.setInterval.bind(window);
  var _clearInterval = window.clearInterval.bind(window);
  var _raf = window.requestAnimationFrame.bind(window);
  var _caf = window.cancelAnimationFrame.bind(window);

  var paused = false;
  var pausePending = false;       // P pressed mid-trial -> pause at next ITI gap
  var ITI_GAP_MS = 700;           // a scheduled delay this long marks a trial gap
  var timeouts = {};      // id -> record
  var intervals = {};     // id -> record
  var rafCallbacks = [];  // held RAF callbacks while paused
  var nextId = 1;

  window.Pause = { isPaused:function(){ return paused; }, isPending:function(){ return pausePending; } };

  window.setTimeout = function(fn, delay){
    var args = Array.prototype.slice.call(arguments, 2);
    delay = delay||0;
    // If a pause is armed and this is an inter-trial-sized gap, pause NOW — at
    // the start of the ITI — instead of mid-stimulus. The trial that just
    // finished is complete; the next one hasn't started yet.
    if(pausePending && delay>=ITI_GAP_MS && !paused){
      pausePending = false;
      var id0 = 'T'+(nextId++);
      var rec0 = { fn:fn, args:args, delay:delay, start:Date.now(), realId:null };
      rec0.realId = _setTimeout(function(){ delete timeouts[id0]; try{ fn.apply(null,args); }catch(e){ console.error(e); } }, delay);
      timeouts[id0] = rec0;
      pauseAll();
      return id0;
    }
    var id = 'T'+(nextId++);
    var rec = { fn:fn, args:args, delay:delay, start:Date.now(), realId:null };
    rec.realId = _setTimeout(function(){
      delete timeouts[id];
      try{ fn.apply(null, args); }catch(e){ console.error(e); }
    }, delay);
    timeouts[id] = rec;
    return id;
  };
  window.clearTimeout = function(id){
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    return _clearTimeout(id);
  };

  window.setInterval = function(fn, delay){
    var args = Array.prototype.slice.call(arguments, 2);
    delay = delay||0;
    var id = 'I'+(nextId++);
    var rec = { fn:fn, args:args, delay:delay, realId:null };
    rec.realId = _setInterval(function(){ try{ fn.apply(null,args); }catch(e){ console.error(e); } }, delay);
    intervals[id] = rec;
    return id;
  };
  window.clearInterval = function(id){
    if(id && intervals[id]){ if(intervals[id].realId!=null) _clearInterval(intervals[id].realId); delete intervals[id]; return; }
    return _clearInterval(id);
  };

  window.requestAnimationFrame = function(cb){
    if(paused){ rafCallbacks.push(cb); return -1; }
    return _raf(cb);
  };
  window.cancelAnimationFrame = function(id){ return _caf(id); };

  function pauseAll(){
    if(paused) return; paused = true;
    if(pendingFallback){ _clearTimeout(pendingFallback); pendingFallback=null; }
    showPending(false);
    var now = Date.now();
    Object.keys(timeouts).forEach(function(id){
      var r = timeouts[id];
      if(r.realId!=null) _clearTimeout(r.realId);
      r.remaining = Math.max(0, r.delay - (now - r.start));
      r.realId = null;
    });
    Object.keys(intervals).forEach(function(id){
      var r = intervals[id];
      if(r.realId!=null) _clearInterval(r.realId);
      r.realId = null;
    });
    try{ document.querySelectorAll('audio,video').forEach(function(m){ if(!m.paused){ m.dataset._pausedByPause='1'; m.pause(); } }); }catch(_){}
    showOverlay(true);
  }

  function resumeAll(){
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    Object.keys(timeouts).forEach(function(id){
      var r = timeouts[id];
      r.start = Date.now(); r.delay = r.remaining!=null?r.remaining:r.delay;
      r.realId = _setTimeout(function(){
        delete timeouts[id];
        try{ r.fn.apply(null, r.args); }catch(e){ console.error(e); }
      }, r.delay);
    });
    Object.keys(intervals).forEach(function(id){
      var r = intervals[id];
      r.realId = _setInterval(function(){ try{ r.fn.apply(null,r.args); }catch(e){ console.error(e); } }, r.delay);
    });
    try{ document.querySelectorAll('audio,video').forEach(function(m){ if(m.dataset._pausedByPause==='1'){ delete m.dataset._pausedByPause; m.play().catch(function(){}); } }); }catch(_){}
    var held = rafCallbacks; rafCallbacks = [];
    held.forEach(function(cb){ _raf(cb); });
    showOverlay(false);
  }

  function showOverlay(show){
    var el = document.getElementById('pauseOverlay');
    if(!el && show){
      el = document.createElement('div');
      el.id = 'pauseOverlay';
      el.style.cssText = 'position:fixed;inset:0;z-index:99999;display:flex;flex-direction:column;align-items:center;justify-content:center;background:rgba(6,13,20,0.92);color:#d4b456;font-family:Georgia,serif;letter-spacing:0.25em;';
      el.innerHTML = '<div style="font-size:2.4rem;">PAUSED</div><div style="font-size:0.85rem;color:#8ab4d0;letter-spacing:0.15em;margin-top:14px;font-family:monospace;">press P to resume</div>';
      document.body.appendChild(el);
    }
    if(el) el.style.display = show ? 'flex' : 'none';
  }

  var pendingFallback = null;
  function armPause(){
    if(paused) return;
    pausePending = true;
    showPending(true);
    // Fallback: if no ITI-sized gap arrives within 5s (e.g. a self-paced task
    // with no pending timers), pause anyway so P is never ignored.
    if(pendingFallback) _clearTimeout(pendingFallback);
    pendingFallback = _setTimeout(function(){ if(pausePending){ pausePending=false; showPending(false); pauseAll(); } }, 5000);
  }
  function showPending(show){
    var el = document.getElementById('pausePending');
    if(!el && show){
      el = document.createElement('div');
      el.id = 'pausePending';
      el.style.cssText = 'position:fixed;top:14px;left:50%;transform:translateX(-50%);z-index:99998;background:rgba(6,13,20,0.9);color:#d4b456;border:1px solid rgba(212,180,86,0.5);border-radius:6px;padding:6px 14px;font-family:monospace;font-size:0.8rem;letter-spacing:0.12em;';
      el.textContent = 'PAUSE PENDING — will pause at next trial gap';
      document.body.appendChild(el);
    }
    if(el) el.style.display = show ? 'block' : 'none';
  }

  document.addEventListener('keydown', function(e){
    var t = e.target;
    if(t && (t.tagName==='INPUT'||t.tagName==='TEXTAREA'||t.tagName==='SELECT'||t.isContentEditable)) return;
    if(e.key==='p'||e.key==='P'){
      e.preventDefault(); e.stopPropagation();
      if(paused){ resumeAll(); }
      else if(pausePending){ pausePending=false; showPending(false); if(pendingFallback)_clearTimeout(pendingFallback); } // cancel a pending pause
      else { armPause(); }
      return;
    }
    if(paused){ e.preventDefault(); e.stopPropagation(); }
  }, true);
})();

// ═══════════════════════════════════════════════════════════
// TRIGGER MODULE — Network-based ERP event marking
// ═══════════════════════════════════════════════════════════
// Sends event codes over WebSocket to a local bridge process which
// forwards them to LSL / parallel port / serial / UDP.
//
// HONEST CONSTRAINTS:
// - WS round-trip on localhost: ~1-5ms jitter typically. Adequate
//   for slow ERPs (P300, N400) but marginal for fast ones (P50, C1).
// - Across the public internet: 30-200ms+. UNUSABLE for ERP timing.
//   Only use this with a LOCAL bridge on the same machine/LAN as the
//   EEG amplifier.
// - If the WS is disconnected at stim onset, the trigger is LOST on
//   the EEG side. We log locally for post-hoc reconstruction but
//   cannot magically inject events into a recording after the fact.
//
// STANDARD CODE SCHEME (per Cognos universal):
//   1   = session start              50  = response: correct
//   2   = session end                51  = response: incorrect
//   10  = block start                52  = response: omission
//   11  = block end                  53  = response: too fast
//   20  = trial start                60  = feedback: positive
//   21  = trial end                  61  = feedback: negative
//   30  = fixation onset             70  = pause / instruction
//   40  = stimulus onset (generic)   99  = artifact / manual marker
//   41  = stim class A (target / oddball / congruent / go)
//   42  = stim class B (standard / non-target / incongruent / no-go)
//   43  = stim class C (third class)
//
// Each task documents its A/B/C mapping in the results JSON.
// ═══════════════════════════════════════════════════════════
window.Trigger = (function(){
  var state = {
    ws: null,
    url: (function(){ try{return localStorage.getItem('cognosWsUrl')||'ws://localhost:7777';}catch(e){return 'ws://localhost:7777';} })(),
    enabled: (function(){ try{return localStorage.getItem('cognosTrigEnabled')!=='0';}catch(e){return true;} })(),
    connected: false,
    reconnectTimer: null,
    log: [],          // every trigger we've fired this session
    recent: [],       // rolling display buffer (last 8)
    sessionId: null,
    statusListeners: []
  };

  function setStatus(connected, msg){
    state.connected = connected;
    state.statusListeners.forEach(function(fn){ try{ fn(connected, msg); }catch(_){} });
    var pill = document.getElementById('trigStatusPill');
    if(pill){
      pill.style.background = connected ? '#1f6f3d' : '#5a2222';
      pill.style.color = '#e6f2e6';
      pill.textContent = connected ? '● connected' : '● ' + (msg||'disconnected');
    }
  }

  function connect(url){
    if(url) state.url = url;
    try{ localStorage.setItem('cognosWsUrl', state.url); }catch(_){}
    if(state.ws){ try{state.ws.close();}catch(_){} state.ws=null; }
    if(state.reconnectTimer){ clearTimeout(state.reconnectTimer); state.reconnectTimer=null; }
    if(!state.enabled){ setStatus(false,'disabled'); return; }
    try {
      var ws = new WebSocket(state.url);
      ws.onopen = function(){
        state.ws = ws;
        setStatus(true);
        // Announce session
        if(!state.sessionId) state.sessionId = 'sess_'+Date.now()+'_'+Math.floor(Math.random()*1e6).toString(36);
        rawSend({code:1, label:'session_start', t:performance.now(), iso:new Date().toISOString(), sessionId:state.sessionId});
      };
      ws.onclose = function(){
        setStatus(false,'closed');
        state.ws = null;
        // Auto-reconnect every 3s if enabled
        if(state.enabled) state.reconnectTimer = setTimeout(function(){ connect(); }, 3000);
      };
      ws.onerror = function(){ setStatus(false,'error'); };
      ws.onmessage = function(){ /* bridge may echo or send commands; ignore for v1 */ };
    } catch(e){
      setStatus(false,'init-fail');
      state.reconnectTimer = setTimeout(function(){ connect(); }, 5000);
    }
  }

  function rawSend(msg){
    if(state.ws && state.connected){
      try{ state.ws.send(JSON.stringify(msg)); }catch(_){}
    }
  }

  function send(code, label, meta){
    if(!state.enabled) return;
    var msg = {
      code: code|0,
      label: label||'',
      t: +performance.now().toFixed(3),
      iso: new Date().toISOString(),
      sessionId: state.sessionId,
      meta: meta||null
    };
    state.log.push(msg);
    state.recent.push(msg);
    if(state.recent.length>8) state.recent.shift();
    rawSend(msg);
    updateRecentUI();
  }

  function updateRecentUI(){
    var el = document.getElementById('trigRecent');
    if(!el) return;
    el.innerHTML = state.recent.slice().reverse().map(function(m){
      return '<div style="font-family:Source Code Pro,monospace;font-size:0.7rem;color:#d4b456;">'+
             m.code.toString().padStart(3,' ')+'  '+(m.label||'')+'  '+m.t.toFixed(1)+'ms</div>';
    }).join('');
  }

  function exportLog(){
    var blob = new Blob([JSON.stringify({sessionId:state.sessionId, triggers:state.log},null,2)], {type:'application/json'});
    var a = document.createElement('a');
    a.href = URL.createObjectURL(blob);
    a.download = 'cognos_triggers_'+(state.sessionId||Date.now())+'.json';
    a.click();
  }

  function setEnabled(v){
    state.enabled = !!v;
    try{ localStorage.setItem('cognosTrigEnabled', v?'1':'0'); }catch(_){}
    if(v) connect(); else { if(state.ws){try{state.ws.close();}catch(_){}} setStatus(false,'disabled'); }
  }

  function setUrl(u){ state.url = u; try{localStorage.setItem('cognosWsUrl',u);}catch(_){}}

  function onStatus(fn){ state.statusListeners.push(fn); }

  // Auto-connect on load (if enabled)
  if(typeof window!=='undefined'){
    window.addEventListener('load', function(){
      if(state.enabled) connect();
    });
  }

  return {
    send: send,
    connect: connect,
    setUrl: setUrl,
    setEnabled: setEnabled,
    exportLog: exportLog,
    onStatus: onStatus,
    _state: state
  };
})();

// ═══════════════════════════════════════════════════════════
// LOCALE DETECTION
// ═══════════════════════════════════════════════════════════
(function(){
  const lang = (navigator.language||navigator.userLanguage||'en-US').toLowerCase();
  const isUK = /^en-(gb|au|nz|ie|za)/.test(lang);
  const locale = isUK ? 'en-GB' : 'en-US';
  document.documentElement.lang = locale;
  window._srLocale = locale;
  window._srIsUK   = isUK;
  document.addEventListener('DOMContentLoaded', ()=>{
    const inp = document.getElementById('frRecallInput');
    if(inp) inp.lang = locale;
  });
})();

// ═══════════════════════════════════════════════════════════
// INTRO / PARADIGM DESCRIPTIONS
// ═══════════════════════════════════════════════════════════
const PARADIGMS = {
  GNG: {
    name: 'GO / NO-GO',
    body: 'The Go/No-Go task measures response inhibition — your ability to suppress a prepotent action. A single stimulus appears at the center of the grid on each trial. You must respond quickly to Go stimuli (●) and withhold all response to No-Go stimuli (○). The task induces a habitual "respond" tendency, then requires you to override it.',
    rules: [
      { key: 'F / SPACE', desc: 'GO — respond to the target' },
      { key: 'J',       desc: 'NO-GO — withhold (or simply do nothing)' },
      { key: '● (filled)', desc: 'GO — respond as fast as possible' },
      { key: '○ (empty)', desc: 'NO-GO — do not respond; withhold completely' },
      { key: 'TIMEOUT', desc: 'No response within 1.5 s counts as a withhold' },
      { key: 'RATE', desc: '70% Go trials · 30% No-Go trials' }
    ]
  },
  NBACK: {
    name: 'N-BACK  (1-back)',
    body: 'The N-Back task measures working memory updating. A letter appears at the center of the grid on each trial. Your job is to decide whether the current letter matches the one presented exactly one trial ago. The task taxes your ability to hold, update, and compare information in mind simultaneously.',
    rules: [
      { key: 'F / SPACE', desc: 'MATCH — letter matches N steps back' },
      { key: 'J',       desc: 'NO MATCH — letter does not match' },
      { key: 'YES / GO', desc: 'Current letter is the same as the letter one trial ago' },
      { key: 'NO / NOGO', desc: 'Current letter is different from one trial ago' },
      { key: 'FIRST TRIAL', desc: 'No correct answer possible — just observe the letter' },
      { key: 'MATCH RATE', desc: '~35% of trials are matches' }
    ]
  },
  SPATIAL: {
    name: 'SPATIAL ATTENTION',
    body: 'The Spatial Attention task measures visuospatial processing and selective attention. On each trial, one cell in a 3×3 grid is highlighted. You must click the highlighted cell as quickly and accurately as possible. Reaction time and accuracy jointly index how rapidly you orient attention to a peripheral location.',
    rules: [
      { key: 'CLICK',    desc: 'Click the highlighted cell as fast as possible' },
      { key: 'CLICK', desc: 'Click the highlighted (gold) cell in the grid' },
      { key: 'ACCURACY', desc: 'Clicking the wrong cell counts as an error' },
      { key: 'TIMEOUT', desc: 'No response within 1.5 s is recorded as a miss' },
      { key: 'NOTE', desc: 'The same cell will rarely appear twice in a row' }
    ]
  },
  POSNER: {
    name: 'POSNER CUEING',
    body: 'The Posner Cueing paradigm measures covert spatial attention. A cue directs attention to the likely location of an upcoming target. When the cue is valid it predicts the correct side; when invalid it misleads. Faster RTs on valid trials relative to invalid trials reveal the attentional benefit conferred by the cue — a signature of selective spatial orienting.',
    rules: [
      { key: 'SPACE / F', desc: 'Respond when the target appears' },
      { key: 'ENDOGENOUS', desc: 'Central arrow cue — requires voluntary attention shift' },
      { key: 'EXOGENOUS', desc: 'Peripheral box flash — automatic, reflexive capture' },
      { key: 'RESPONSE', desc: 'Press SPACE / click as soon as the ★ target appears' },
      { key: 'BENEFIT', desc: 'Cueing benefit = Invalid RT − Valid RT (larger = stronger effect)' }
    ]
  },
  VRT: {
    name: 'VISUAL RECOGNITION',
    body: 'The Visual Recognition task measures visual episodic memory. During the study phase, an array of abstract geometric patterns is displayed for a fixed interval. Each pattern is procedurally generated — unique combinations of shapes, colours, and spatial arrangements — so they cannot be named or verbally encoded. After a brief retention interval, a series of forced-choice test trials presents one studied (old) pattern alongside one novel (new) foil. Your task is to identify which pattern you saw during study. Hit rate, false alarm rate, response time, and sensitivity (d\u2019) are recorded.',
    rules: [
      { key: 'F / SPACE', desc: 'YES — probe letter was in the memory set' },
      { key: 'J',       desc: 'NO — probe letter was NOT in the memory set' },
      { key: 'STUDY',   desc: 'View the array of patterns — 4 seconds per pattern set' },
      { key: 'INTERVAL',desc: 'Short retention interval (3 s) before testing begins' },
      { key: 'TEST',    desc: 'Two patterns appear — click the one you studied' },
      { key: 'FOILS',   desc: 'Foils are parametrically similar to targets (same colour palette, different arrangement)' },
      { key: 'METRICS', desc: 'Hit rate, false alarms, d\u2019 sensitivity, and per-trial RT' }
    ]
  },
  CSR: {
    name: 'CONTRAST REVERSAL',
    body: 'A checkerboard pattern reverses polarity at a steady rate. Most reversals are standard. A small proportion are TARGET reversals — signalled by the checkerboard shifting to a rotated (45°) orientation for exactly one reversal cycle before returning to normal. Respond as quickly as possible when you detect the orientation shift. This paradigm measures visual sustained attention and contrast sensitivity.',
    rules: [
      { key: 'SPACE',    desc: 'Press when you detect a TARGET (rotated) reversal' },
      { key: 'WATCH',   desc: 'Checkerboard reverses continuously — maintain fixation on centre' },
      { key: 'STANDARD',desc: 'Most reversals are standard — do NOT respond' },
      { key: 'TARGET',  desc: 'Occasional rotation shift (45°) — press SPACE immediately' },
      { key: 'SPEED',   desc: 'Respond within the reversal window — fast and accurate' }
    ]
  },
  P300: {
    name: 'AUDITORY P300',
    body: 'The auditory oddball paradigm elicits the P300 ERP component. A stream of frequent standard tones is presented, with rare oddball tones interspersed. Your task is to detect the oddball tone and press SPACE. The standard tone is 1000 Hz; the oddball is 2000 Hz. Probability of oddball is 20%. Key measures are hit rate, false alarm rate, d\u2019 sensitivity, and reaction time.',
    rules: [
      { key: 'SPACE',    desc: 'Press when you hear the RARE (high-pitched) tone' },
      { key: 'STANDARD', desc: '1000 Hz tone (frequent) — do NOT respond' },
      { key: 'ODDBALL',  desc: '2000 Hz tone (rare, 20%) — press SPACE' },
      { key: 'LISTEN',   desc: 'Use headphones for best frequency discrimination' },
      { key: 'SPEED',    desc: 'Respond as quickly and accurately as possible' }
    ]
  },
  STB: {
    name: 'STERNBERG MEMORY',
    body: 'The Sternberg paradigm measures verbal working memory scanning speed. A memory set of letters is presented ONE AT A TIME — each letter appears for 1 second, separated by a 1-second fixation cross. After a 2-second retention interval, a single probe letter appears. Respond YES if it was in the set, NO if it was not. Reaction time increases linearly with set size — the slope indexes your memory scanning rate.',
    rules: [
      { key: 'F / SPACE', desc: 'YES — the probe letter WAS in the memory set' },
      { key: 'J',         desc: 'NO — the probe letter was NOT in the memory set' },
      { key: 'STUDY',     desc: 'Letters appear ONE AT A TIME — 1 s each, with a fixation cross between each' },
      { key: 'PROBE',     desc: 'After the set, a single probe letter appears — respond quickly' },
      { key: 'SPEED',     desc: 'Respond as fast and accurately as possible' }
    ]
  },
  WCST: {
    name: 'CARD SORTING (WCST)',
    body: 'The Card Sorting task is modelled on the Wisconsin Card Sorting Test, a classic measure of executive function and cognitive flexibility. A stimulus card must be matched to one of four target cards according to a rule — colour, shape, or number. The rule is never stated; you must infer it from feedback. Critically, the rule shifts without warning after 10 consecutive correct sorts, requiring you to abandon a successful strategy and discover the new one. Perseverative errors — continuing to sort by the old rule after the shift — are the key dependent measure.',
    rules: [
      { key: 'CLICK',    desc: 'Click a card to place it on a pile' },
      { key: 'CLICK', desc: 'Click a target card to sort the stimulus card there' },
      { key: 'RULES', desc: 'Three possible rules: colour · shape · number of symbols' },
      { key: 'SHIFT', desc: 'Rule changes silently after 10 correct in a row' },
      { key: 'PERSEV', desc: 'Perseverative error = sorting by the old rule after a shift' },
      { key: 'GOAL', desc: 'Complete 6 rule runs (or 64 trials) with minimal perseverations' }
    ]
  },
  RECALL: {
    name: 'WORD RECOGNITION',
    body: 'This task measures episodic memory using recognition rather than free recall — easier to respond to, since you simply judge each word. A list of common words is shown one at a time during the study phase. After a brief distractor task (mental arithmetic to prevent rehearsal), words are shown one at a time: some were on the studied list (OLD) and some are new (NEW). For each, decide whether you saw it during study. Hits, false alarms, and d′ (recognition sensitivity) are recorded.',
    rules: [
      { key: 'F = OLD', desc: 'Press F if the word WAS on the studied list' },
      { key: 'J = NEW', desc: 'Press J if the word was NOT on the list' },
      { key: 'STUDY', desc: 'Read each word carefully — each appears for 2 seconds' },
      { key: 'DISTRACTOR', desc: 'Solve arithmetic problems for 30 s to prevent rehearsal' },
      { key: 'SCORING', desc: 'Hits, false alarms, and d′ sensitivity are recorded' }
    ]
  },

  // ══ ERP VARIANTS ════════════════════════════════════════════
  MMN:{name:'MMN — MISMATCH NEGATIVITY',body:'Passive auditory oddball — standard tones (80%) and rare deviant tones (20%) presented while you ignore them and watch a silent video. The MMN is a fronto-central negativity ~150–250 ms after deviants, reflecting automatic pre-attentive detection of regularity violations. Index of auditory sensory memory and predictive processing; reduced in schizophrenia, NMDA-receptor dysfunction.',rules:[{key:'PASSIVE',desc:'Listen through headphones — no active task'},{key:'STANDARD',desc:'1000 Hz (80%)'},{key:'DEVIANT',desc:'Pitch-deviant (20%) — ignore'},{key:'MMN',desc:'Fronto-central negativity ~150–250 ms to deviants'}]},
  N400:{name:'N400 — SEMANTIC INCONGRUITY',body:'Sentence-ending word violates expected semantic context, eliciting a centro-parietal negativity ~400 ms. Index of semantic memory access and lexical-semantic integration; sensitive to context strength, cloze probability, working memory load. Reduced or absent in semantic dementia.',rules:[{key:'READ',desc:'Sentence appears word-by-word'},{key:'F / SPACE',desc:'CONGRUENT — final word fits'},{key:'J',desc:'INCONGRUENT — final word violates expectation'},{key:'N400',desc:'Centro-parietal negativity ~400 ms to violations'}]},
  P600:{name:'P600 — SYNTACTIC REANALYSIS',body:'Posterior positivity 500–800 ms after a syntactic violation or garden-path sentence. Reflects syntactic reanalysis and revision; distinct from N400 (semantic). Sensitive to agreement violations, phrase-structure errors, ambiguity resolution.',rules:[{key:'READ',desc:'Sentences appear word-by-word'},{key:'F / SPACE',desc:'GRAMMATICAL'},{key:'J',desc:'VIOLATION — agreement error or garden-path'},{key:'P600',desc:'Posterior positivity 500–800 ms to violations'}]},
  ERN:{name:'ERN — ERROR-RELATED NEGATIVITY',body:'Speeded forced-choice task; the ERN is a frontocentral negativity 0–100 ms after a wrong response, generated in anterior cingulate cortex. Implicit error detection — emerges before conscious awareness. Enhanced in OCD, anxiety; reduced in psychopathy and Parkinson disease.',rules:[{key:'F',desc:'Left arrow'},{key:'J',desc:'Right arrow'},{key:'SPEED',desc:'Respond fast — errors are the point'},{key:'ERN',desc:'Frontocentral negativity 0–100 ms after error'}]},
  CNV:{name:'CNV — CONTINGENT NEGATIVE VARIATION',body:'A warning tone (S1) signals an imperative stimulus (S2) will follow after a fixed interval — respond with SPACE to S2. Slow CNV negativity grows between S1 and S2 over frontal cortex; amplitude reflects motor preparation and temporal expectation. Distinct from the readiness potential.',rules:[{key:'S1 (tone)',desc:'Warning signal — brief tone'},{key:'S2 (circle)',desc:'Imperative — press SPACE as fast as possible'},{key:'CATCH',desc:'Some trials have no S2 — withhold response'},{key:'CNV',desc:'Slow frontal negativity 1000 ms between S1 and S2'}]},

  // ── ERP variants — auditory ─────────────────────────────
  ORN:{name:'ORN — OBJECT-RELATED NEGATIVITY',body:'Object-Related Negativity — fronto-central negativity ~150–250 ms to a simultaneous two-tone complex perceived as two segregated auditory objects. Reflects auditory scene analysis and object formation; complementary to MMN.',rules:[{key:'PASSIVE',desc:'Listen via headphones — no active task'},{key:'STANDARD',desc:'Single fused tone — one auditory object'},{key:'DEVIANT',desc:'~3% mistuned — perceived as two objects'},{key:'ORN',desc:'Fronto-central negativity ~150–250 ms'}]},
  MMNSP:{name:'MMN — SPEECH',body:'Passive phonemic contrast: standard /ba/ vs deviant /pa/. Speech MMN used in dyslexia and language development research; indexes phoneme discrimination automaticity, distinct from pitch-based MMN.',rules:[{key:'LISTEN',desc:'Passively via headphones'},{key:'STANDARD',desc:'/ba/ (85%)'},{key:'DEVIANT',desc:'/pa/ (15%) — differs in place of articulation'},{key:'MMN',desc:'Fronto-central negativity ~150–250 ms'}]},
  PMN:{name:'PMN — PHONOLOGICAL MISMATCH NEGATIVITY',body:'Phonological Mismatch Negativity — early left-anterior negativity ~270 ms to a phonological violation in a spoken word. Distinct from semantic N400; reflects lexical access at the phoneme level.',rules:[{key:'LISTEN',desc:'Words via headphones'},{key:'EXPECTED',desc:'Final phoneme consistent with prime'},{key:'VIOLATION',desc:'Phonologically incompatible ending'},{key:'PMN',desc:'Left-anterior negativity ~270 ms'}]},
  ELAN:{name:'ELAN — EARLY LEFT ANTERIOR NEGATIVITY',body:'Early Left Anterior Negativity — ultra-fast (100–200 ms) response to a syntactic violation, preceding P600. Anterior-left scalp localization. Indexes automatic detection of phrase-structure violations.',rules:[{key:'F / SPACE',desc:'GRAMMATICAL'},{key:'J',desc:'VIOLATION — phrase structure broken'},{key:'ELAN',desc:'Left-anterior negativity 100–200 ms'},{key:'P600',desc:'Often accompanied by a late positivity 500–800 ms'}]},
  LAN:{name:'LAN — LEFT ANTERIOR NEGATIVITY',body:'Left Anterior Negativity — morphosyntactic response ~300–500 ms to agreement violations (number, gender, case). Left-lateralized; dissociates syntactic from semantic processing. Distinct from N400; specific to grammar.',rules:[{key:'F / SPACE',desc:'GRAMMATICAL'},{key:'J',desc:'AGREEMENT ERROR'},{key:'LAN',desc:'Left-anterior negativity ~300–500 ms'},{key:'SPECIFIC',desc:'Grammar, not semantics'}]},
  CPS:{name:'CPS — CLOSURE POSITIVE SHIFT',body:'Closure Positive Shift — bilateral positivity at prosodic phrase boundaries in spoken sentences ~200–500 ms. Reflects syntactic parsing of intonation phrases; distinct from syntactic and semantic processing.',rules:[{key:'LISTEN',desc:'Spoken sentences with prosodic boundaries'},{key:'BOUNDARY',desc:'Pause or intonational lengthening'},{key:'CPS',desc:'Bilateral positivity ~200–500 ms'},{key:'PASSIVE',desc:'No active task required'}]},
  ASSR:{name:'ASSR 40 Hz',body:'Auditory Steady-State Response — amplitude-modulated tone at 40 Hz. The brain phase-locks at 40 Hz in the gamma band. Impaired in schizophrenia; indexes cortical GABAergic function and gamma-band synchrony.',rules:[{key:'LISTEN',desc:'40 Hz AM tone via headphones'},{key:'PASSIVE',desc:'No active task required'},{key:'RESPONSE',desc:'Sharp peak at 40 Hz in EEG spectrum'},{key:'CLINICAL',desc:'Reduced in schizophrenia'}]},
  ABR:{name:'ABR — AUDITORY BRAINSTEM RESPONSE',body:'Auditory Brainstem Response — far-field potentials to a click. Waves I–V reflect successive brainstem auditory nuclei. Wave V latency is the clinical gold standard for hearing threshold and auditory neuropathy.',rules:[{key:'CLICKS',desc:'High-frequency clicks via insert earphones'},{key:'PASSIVE',desc:'Often in sleep or sedation'},{key:'WAVES I–V',desc:'5 peaks in first 10 ms'},{key:'CLINICAL',desc:'V latency — hearing threshold / neuropathy'}]},
  N1P2:{name:'N1-P2 — AUDITORY RESPONSE',body:'N1-P2 — vertex negativity ~100 ms and positivity ~200 ms at tone onset. Amplitude modulated by attention, habituation, and arousal. Basic cortical auditory response.',rules:[{key:'LISTEN',desc:'A series of tones (headphones recommended)'},{key:'SPACE',desc:'Press SPACE to count the higher-pitch target tones'},{key:'N1/P2',desc:'Vertex N1 ~100 ms and P2 ~200 ms'},{key:'MODULATION',desc:'Enhanced by attention'}]},
  RON:{name:'RON — REORIENTING NEGATIVITY',body:'Reorienting Negativity — fronto-central negativity ~400–600 ms after an unexpected deviant captured attention. Reflects re-orienting of attention back to the main channel following distraction by a novel sound.',rules:[{key:'LISTEN',desc:'Tones with occasional novel distractors'},{key:'SPACE',desc:'Press SPACE to count the target tones; ignore distractors'},{key:'CAPTURE→REORIENT',desc:'A novel sound captures attention, then you reorient to the task'},{key:'RON',desc:'Fronto-central negativity ~400–600 ms'}]},
  P3A:{name:'P3a — NOVELTY ODDBALL',body:'Three-stimulus oddball — separates P3a (frontal novelty) from P3b (parietal target detection). Rare novel/unpredictable sounds elicit P3a; targets elicit P3b. Indexes involuntary attention orienting.',rules:[{key:'STANDARD',desc:'1000 Hz (80%)'},{key:'TARGET',desc:'2000 Hz (10%) — press SPACE'},{key:'NOVEL',desc:'Random novel sounds (10%) — ignore'},{key:'P3a',desc:'Frontal positivity to novelty ~250–350 ms'},{key:'P3b',desc:'Parietal positivity to targets ~300–500 ms'}]},
  P50:{name:'P50 — SENSORY GATING',body:'Double-click paradigm: two auditory clicks at 500 ms interval. P50 to S2 is normally suppressed (~50% of S1). The S2/S1 ratio indexes sensory gating; impaired in schizophrenia and reflects cholinergic and GABAergic function.',rules:[{key:'CLICKS',desc:'Click pairs at 500 ms interval via headphones'},{key:'PASSIVE',desc:'No active task required'},{key:'P50',desc:'Positive peak ~50 ms to each click'},{key:'GATE',desc:'S2/S1 normally <0.5'}]},
  N100:{name:'N100 / P200',body:'Auditory N100 — vertex negativity ~100 ms to tones; P200 — positivity ~200 ms. Amplitude reflects intensity and habituation. Basic cortical auditory complex.',rules:[{key:'LISTEN',desc:'Tone series via headphones'},{key:'N100',desc:'Vertex negativity ~100 ms'},{key:'P200',desc:'Vertex positivity ~200 ms'},{key:'HABITUATION',desc:'Amplitude decreases with repetition'}]},
  LDAEP:{name:'LDAEP — LOUDNESS DEPENDENCE',body:'Loudness Dependence of Auditory Evoked Potentials — slope of N1/P2 amplitude vs tone loudness. A steep slope correlates with low serotonergic activity; used in depression research.',rules:[{key:'LISTEN',desc:'Tones at 5 loudness levels'},{key:'PASSIVE',desc:'No active task required'},{key:'SLOPE',desc:'N1/P2 amplitude vs loudness'},{key:'SEROTONIN',desc:'Steep slope → low 5-HT'}]},

  // ── ERP variants — visual ───────────────────────────────
  P1N1:{name:'P1/N1 — SPATIAL ATTENTION',body:'Bilateral flash with directed spatial attention. P1 enhanced ~100 ms over occipital cortex contralateral to the attended location; N1 enhanced ~160 ms. Canonical ERP of covert spatial attention (Hillyard et al., 1973).',rules:[{key:'FIXATE',desc:'Fix the center — do not move eyes'},{key:'CUE',desc:'Arrow left / right'},{key:'TARGET',desc:'Flash to the left or right'},{key:'P1/N1',desc:'Occipital contralateral, enhanced on attended side'}]},
  N170:{name:'N170 — FACE / OBJECT',body:'N170 — occipito-temporal negativity ~170 ms, selectively larger for faces. Schematic procedurally-generated faces and geometric objects presented; respond face or object. Face inversion effect (larger/later N170 for inverted faces) is a robust marker of configural face processing.',rules:[{key:'F',desc:'FACE — stimulus is a face'},{key:'J',desc:'OBJECT — stimulus is a geometric figure'},{key:'N170',desc:'Occipito-temporal negativity ~170 ms, larger for faces'},{key:'INVERSION',desc:'Inverted faces produce larger, later N170'}]},
  VPP:{name:'VPP — VERTEX POSITIVE POTENTIAL',body:'Vertex Positive Potential — positive counterpart of N170 at the midline vertex (Cz); peaks ~170 ms to faces; face-specific. Reflects the same fusiform source as N170, but with opposite polarity at Cz.',rules:[{key:'F',desc:'FACE'},{key:'J',desc:'OBJECT'},{key:'VPP',desc:'Positive peak at Cz ~170 ms'},{key:'SOURCE',desc:'Fusiform gyrus — same dipole as N170'}]},
  N2PC:{name:'N2pc — ATTENTIONAL CAPTURE',body:'Visual search with bilateral array. Contralateral posterior negativity ~220–300 ms (PO7/PO8) marks covert attentional capture by the target. Canonical index of target selection in spatial search.',rules:[{key:'FIXATE',desc:'Fix the center — do not move eyes'},{key:'SEARCH',desc:'Target left or right among distractors'},{key:'RESPOND',desc:'Target property (color/orientation)'},{key:'N2pc',desc:'Contralateral posterior negativity ~220–300 ms'}]},
  N2B:{name:'N2b — TARGET N2',body:'A stream of single letters appears one at a time. The target is the letter X (shown in gold); all other letters are standards. Press SPACE whenever you see an X, and withhold for every other letter. Targets are rare (~20%), so sustained attention is needed. The N2b is a fronto-central negativity ~200–300 ms to targets, reflecting the match between the stimulus and your target template; it is followed by the P300.',rules:[{key:'TARGET',desc:'The letter X — press SPACE when you see it'},{key:'STANDARDS',desc:'All other letters — do NOT respond'},{key:'SPACE',desc:'Respond only to the X target'},{key:'RARE',desc:'Targets are infrequent (~20%) — stay vigilant'},{key:'N2b',desc:'Fronto-central negativity ~200–300 ms, then P300'}]},
  PD:{name:'Pd — DISTRACTOR POSITIVITY',body:'A search array of shapes appears briefly. Find the one unique shape (the tilted diamond target) and report which way it leans: press F if it is tilted LEFT, J if tilted RIGHT. On most trials a brightly coloured circle (the distractor) also appears — ignore it; it is never the target. The Pd is a contralateral positivity ~200–300 ms reflecting active suppression of that distractor (the mirror image of the N2pc).',rules:[{key:'TARGET',desc:'The unique tilted diamond — judge its tilt'},{key:'F',desc:'Diamond tilted LEFT'},{key:'J',desc:'Diamond tilted RIGHT'},{key:'DISTRACTOR',desc:'Ignore the bright coloured circle — never the target'},{key:'Pd',desc:'Contralateral positivity to the distractor ~200–300 ms'}]},
  N300:{name:'N300 — OBJECT PRIMING',body:'Emoji prime → target. Centro-occipital negativity ~300 ms smaller for categorically congruent pairs. Reflects early categorical processing, preceding the semantic N400.',rules:[{key:'PRIME',desc:'Emoji 500 ms'},{key:'TARGET',desc:'Emoji — same or different category'},{key:'F',desc:'MATCHES category'},{key:'J',desc:'DOES NOT MATCH'},{key:'N300',desc:'Centro-occipital negativity ~300 ms'}]},
  P100:{name:'P100 FLASHED VEP',body:'Brief full-field luminance flashes (~80 ms duration, white on black background) at 1–2 s ISI elicit the P100 — a positive occipital peak ~80–130 ms generated in primary visual cortex (V1). Distinct from pattern-onset PVEP: flash stimuli activate broader retinal regions and produce a more robust but less spatially specific response. Used in basic visual neuroscience for retinal/optic-nerve integrity, and adapted clinically when pattern reversal is impractical (e.g., poor fixation, low acuity). Includes occasional dim catch trials to keep attention engaged.',rules:[{key:'FIXATE',desc:'Fix the central cross — do not look away'},{key:'PASSIVE',desc:'Most trials require no response — just observe'},{key:'CATCH',desc:'SPACE: press only when you see a DIM flash (10% of trials)'},{key:'P100',desc:'Positive occipital peak ~80–130 ms at O1/Oz/O2'},{key:'V1',desc:'Generated in primary visual cortex; reflects retinal+pathway integrity'}]},
  SSVEP:{name:'SSVEP',body:'Steady-State Visual Evoked Potential — flickering patches at 10 Hz (left) and 15 Hz (right) produce sharp spectral peaks in occipital EEG at exactly those frequencies. Used in BCI and attention research.',rules:[{key:'FIXATE',desc:'Look at the central cross'},{key:'ATTEND',desc:'Concentrate on one flickering side'},{key:'SPECTRUM',desc:'Peak at 10 Hz / 15 Hz in occipital EEG'},{key:'BCI',desc:'Selective attention modulates amplitude'}]},
  ERAN:{name:'ERAN — EARLY RIGHT ANTERIOR NEGATIVITY',body:'You will hear short chord sequences. Each ends on a final chord that either fits the key (regular) or sounds out of place (an irregular, out-of-key chord). After each sequence, judge the final chord: press Y if it fits, N if it sounds wrong. The ERAN is a right-anterior negativity ~150–200 ms to the music-syntactic violation — the musical analogue of language\'s ELAN, and sensitive to musical training.',rules:[{key:'LISTEN',desc:'Hear the chord sequence (headphones recommended)'},{key:'Y',desc:'Final chord FITS the key'},{key:'N',desc:'Final chord sounds OUT OF PLACE'},{key:'ERAN',desc:'Right-anterior negativity ~150–200 ms to the violation'}]},
  C1:{name:'C1 — EARLIEST VISUAL',body:'Earliest visual ERP, ~60–100 ms. Generated in V1 (primary visual cortex). Polarity depends on visual field: positive for lower field, negative for upper field. Marker of retinotopic processing.',rules:[{key:'FIXATE',desc:'Keep your eyes on the centre'},{key:'SPACE',desc:'Press SPACE for the dimmer target patch; ignore bright standards'},{key:'FIELD',desc:'Patches appear in the upper or lower visual field'},{key:'C1',desc:'Occipital peak ~60–100 ms, generated in V1'}]},

  // ── ERP variants — motor and feedback ────────────────────
  BP:{name:'BEREITSCHAFTSPOTENTIAL',body:'Readiness potential — self-initiated voluntary key presses. Slow negative slope over Cz beginning ~1500 ms BEFORE movement onset. Libet free-will paradigm. Generated in supplementary motor area (SMA).',rules:[{key:'SPACE',desc:'Press at your own pace — irregularly'},{key:'INTERVAL',desc:'≥4 s between presses — self-paced'},{key:'BP',desc:'Slow negativity over Cz, onset ~1500 ms before movement'},{key:'LIBET',desc:'"Free will" paradigm'}]},
  LRP:{name:'LRP — LATERALIZED READINESS POTENTIAL',body:'Lateralized Readiness Potential — "arrow left/right" task. Contralateral motor negativity ~300–500 ms indexes hand-specific movement preparation.',rules:[{key:'F',desc:'Left arrow → left hand'},{key:'J',desc:'Right arrow → right hand'},{key:'LRP',desc:'Contralateral cortico-motor negativity 300–500 ms'},{key:'MARKER',desc:'Manual response preparation'}]},
  CNVW:{name:'CNV — WARNING SIGNAL',body:'S1 (warning) → S2 (imperative) with 1000 ms interval. Slow CNV negativity grows between them over frontal cortex; amplitude reflects motor preparation and temporal expectation. Distinct from the readiness potential.',rules:[{key:'S1',desc:'Warning tone'},{key:'S2',desc:'Imperative stimulus after 1000 ms'},{key:'SPACE',desc:'Respond to S2 as fast as possible'},{key:'CNV',desc:'Slow negativity between S1 and S2 over frontal cortex'}]},
  PE:{name:'Pe — ERROR POSITIVITY',body:'Error Positivity — centro-parietal positivity ~200–400 ms after ERN. Reflects conscious error awareness; dissociable from ERN in anosognosia; mediated by anterior cingulate and insula.',rules:[{key:'F / J',desc:'Fast forced-choice'},{key:'ERROR',desc:'After a wrong response'},{key:'ERN',desc:'Frontal negativity 0–100 ms'},{key:'Pe',desc:'Centro-parietal positivity 200–400 ms — error awareness'}]},
  N200:{name:'N200 / NoGo N2',body:'Two-alternative Go/No-Go task; fronto-central negative peak ~200 ms, selectively larger in No-Go trials — reflects active suppression of the prepotent response.',rules:[{key:'F / SPACE',desc:'GO — respond to GOLDEN circle'},{key:'STOP',desc:'NO-GO — do not press to BLUE circle'},{key:'N200',desc:'Fronto-central negative peak ~200 ms, larger in No-Go'},{key:'RATIO',desc:'75% Go · 25% No-Go'}]},
  MFN:{name:'MFN — MEDIAL FRONTAL NEGATIVITY',body:'Medial Frontal Negativity — a fronto-central negativity ~200–350 ms to response conflict. A colour word is shown in coloured ink; name the INK colour (ignore the word). Conflict between word and ink drives the MFN.',rules:[{key:'F = RED',desc:'Press F when the ink is RED'},{key:'J = BLUE',desc:'Press J when the ink is BLUE'},{key:'INK NOT WORD',desc:'Respond to the ink colour, ignore what the word says'},{key:'MFN',desc:'Fronto-central negativity ~200–350 ms, larger on incongruent trials'}]},
  REWP:{name:'RewP / FRN',body:'Reward Positivity — feedback-related ERP ~250 ms; gain produces positivity, loss negativity; orbitofrontal source. Used in depression, addiction, and decision-making research.',rules:[{key:'CHOOSE',desc:'Pick one of two doors'},{key:'FEEDBACK',desc:'Gain or loss after 600 ms'},{key:'RewP',desc:'Fronto-central positivity ~250 ms to gain'},{key:'FRN',desc:'Same time window — negativity to loss'}]},
  FRN:{name:'FRN — FEEDBACK-RELATED NEGATIVITY',body:'Feedback-Related Negativity — fronto-central negativity ~200–300 ms after negative outcomes; reward prediction error signal; distinct from ERN (own errors); sensitive to depression and substance use.',rules:[{key:'F',desc:'Choose the LEFT option'},{key:'J',desc:'Choose the RIGHT option'},{key:'FEEDBACK',desc:'Gain or loss is shown after ~600 ms'},{key:'FRN',desc:'Fronto-central negativity ~200–300 ms to loss (reward prediction error)'}]},
  LPC:{name:'LPC — LATE POSITIVE COMPONENT',body:'Late Positive Component — parietal positivity 500–800 ms during episodic recognition. Reflects recollection; dissociable from familiarity (FN400); large for confidently remembered items.',rules:[{key:'OLD',desc:'Item previously studied'},{key:'NEW',desc:'Item not studied'},{key:'LPC',desc:'Parietal positivity 500–800 ms'},{key:'RECOLLECT',desc:'Larger for confident "remember" responses'}]},
  SCP:{name:'SCP — SLOW CORTICAL POTENTIALS',body:'Slow Cortical Potentials — sustained DC shifts during cognitive load. Used in neurofeedback and BCI. Voluntary SCP regulation is the basis of classical Birbaumer BCIs.',rules:[{key:'LOAD',desc:'Sustain mental effort over the block'},{key:'REST',desc:'Relax between blocks'},{key:'SCP',desc:'Slow DC shift — seconds'},{key:'BCI',desc:'Voluntary regulation possible with training'}]},
  CDA:{name:'CDA — CONTRALATERAL DELAYED ACTIVITY',body:'Contralateral Delayed Activity — sustained contralateral negativity over posterior cortex during visual working memory maintenance. Amplitude plateaus at WM capacity (~3–4 items). Used to index visual WM load.',rules:[{key:'FIXATE',desc:'Fix the center'},{key:'STUDY',desc:'Remember colored squares on one side'},{key:'RETENTION',desc:'1 s delay'},{key:'CDA',desc:'Contralateral posterior negativity during retention'},{key:'CAPACITY',desc:'Plateau at ~3–4 items = WM capacity'}]},
  THALPHA:{name:'THETA / ALPHA',body:'Spontaneous EEG rhythms at rest. Frontal theta (4–8 Hz) increases with cognitive load; occipital alpha (8–13 Hz) dominates with eyes closed. Basic indicator of cortical state.',rules:[{key:'EYES',desc:'Alternate "open" and "closed"'},{key:'ALPHA',desc:'Occipital peak 8–13 Hz with eyes closed'},{key:'THETA',desc:'Frontal 4–8 Hz under load'},{key:'STATE',desc:'Alpha blocked on eye opening'}]},

  // ══ SENSORY TESTING ══════════════════════════════════════════
  SNELLEN:{name:'SNELLEN CHART',body:'Visual acuity screening. Standard Snellen chart with letters of decreasing size. Read each line from viewing distance; the smallest line read correctly determines acuity in 20/X format (or 6/X metric).',rules:[{key:'DISTANCE',desc:'Sit ~3 m from screen'},{key:'READ',desc:'Speak the letters on each line'},{key:'THRESHOLD',desc:'Smallest line read correctly'},{key:'SCREEN',desc:'Does not replace optometric exam'}]},
  ISHIHARA:{name:'ISHIHARA PLATES',body:'Color vision screening for red-green anomaly. Numbers hidden in dot patterns; visible to normal trichromats but not to those with protanopia or deuteranopia. Classic screening tool.',rules:[{key:'VIEW',desc:'Identify the number on each plate'},{key:'TIME',desc:'~3 s per plate'},{key:'R/G DEFICIT',desc:'Protan / deutan — most common forms'},{key:'SCREEN',desc:'Does not replace full color exam'}]},
  SEASHORE:{name:'SEASHORE — RHYTHM',body:'Seashore rhythm test. Listen to pairs of rhythmic sequences; decide whether they are same or different. Measures auditory discrimination, especially rhythmic processing. Used in musical-ability and amusia assessment.',rules:[{key:'LISTEN',desc:'Rhythm pair via headphones'},{key:'F',desc:'SAME'},{key:'J',desc:'DIFFERENT'},{key:'AMUSIA',desc:'Reduced in congenital amusia'}]},
  AUDIOM:{name:'AUDIOMETRY — PURE TONE',body:'Hearing threshold screening. Tones presented at varying frequencies (250 Hz – 8 kHz) and intensities; press on detection. The audiogram plots threshold by frequency — basic indicator of auditory health.',rules:[{key:'HEADPHONES',desc:'Calibrated headphones required'},{key:'QUIET',desc:'Minimize background noise'},{key:'SPACE',desc:'Press on each detected tone'},{key:'THRESHOLD',desc:'Lowest level detected at each frequency'}]},
  GABOR:{name:'GABOR — CONTRAST SENSITIVITY',body:'Gabor patches (sinusoidal gratings in Gaussian envelope) at variable contrast. Staircase method finds detection threshold. Classic tool for measuring contrast sensitivity function.',rules:[{key:'FIXATE',desc:'Fix the central cross'},{key:'F / J',desc:'Grating on left or right'},{key:'STAIRCASE',desc:'Contrast adapts to performance'},{key:'THRESHOLD',desc:'~75% correct'}]},

  // ══ ATTENTION & VIGILANCE ════════════════════════════════════
  CPT:{name:'CPT — CONTINUOUS PERFORMANCE',body:'Continuous Performance Test (CPT-AX) — sustained attention/vigilance. Letters presented continuously; the target is X following A. Captures ADHD effects and post-TBI fatigue over time.',rules:[{key:'SPACE',desc:'Press only when X immediately follows A'},{key:'IGNORE',desc:'All other letters and pairs'},{key:'ERRORS',desc:'Omissions (inattention) and commissions (impulsivity)'},{key:'DURATION',desc:'~10–15 min to capture vigilance decline'}]},
  ATTBLINK:{name:'ATTENTIONAL BLINK',body:'RSVP letters; T2 is missed when it follows T1 by 200–500 ms; temporal inattention window after resource depletion. Classic index of temporal limits of attention.',rules:[{key:'WATCH',desc:'A rapid letter stream at the centre'},{key:'SPACE',desc:'Press SPACE when you see a coloured (target) letter'},{key:'T1/T2',desc:'Two targets appear close together'},{key:'BLINK',desc:'T2 is often missed at lag 200–500 ms'}]},
  DUALTASK:{name:'DUAL TASK',body:'Simultaneous letter monitoring + spatial tracking; dual-task cost indexes divided attention and central bottleneck. Indicator of attentional capacity.',rules:[{key:'F',desc:'Press for a target LETTER'},{key:'J',desc:'Press when the DOT is in the zone'},{key:'COST',desc:'Dual- vs single-task performance drop'},{key:'BOTTLENECK',desc:'Reflects the central-processing limit'}]},
  SART:{name:'SART — SUSTAINED ATTENTION',body:'Sustained Attention to Response Task — respond to every digit except 3. Commission rate indexes mind-wandering; sensitive to TBI and ADHD. "Response withholding" paradigm.',rules:[{key:'SPACE',desc:'Press to every digit'},{key:'STOP',desc:'DO NOT press to 3'},{key:'COMMISSIONS',desc:'Errors on 3 = mind-wandering'},{key:'DURATION',desc:'~5 min — vigilance decline'}]},
  UFOV:{name:'UFOV — USEFUL FIELD OF VIEW',body:'Useful Field of View — identify a central object (car vs truck) AND locate a brief peripheral target at the same time. Divided attention; predictor of driving safety; sensitive to aging and TBI. Both responses must be correct; presentation time shortens as you succeed.',rules:[{key:'F',desc:'Central object was a CAR'},{key:'J',desc:'Central object was a TRUCK'},{key:'CLICK',desc:'Then click where the peripheral dot flashed'},{key:'BOTH',desc:'A trial counts only if vehicle AND location are correct'}]},

  // ══ WORKING MEMORY & PROCESSING ══════════════════════════════
  SPATWM:{name:'SPATIAL WORKING MEMORY',body:'Remember locations of highlighted squares after a delay; distinct from verbal span; analogous to Corsi block tapping. Evaluates right-parietal working memory system.',rules:[{key:'STUDY',desc:'Squares are highlighted sequentially'},{key:'DELAY',desc:'Brief retention interval'},{key:'REPRODUCE',desc:'Click the same squares in order'},{key:'SPAN',desc:'Longest correct sequence'}]},
  DIGCAN:{name:'DIGIT CANCELLATION',body:'Scan a grid of random digits and click every 3 and every 7 — these two digits are the targets. Ignore all other digits. Score reflects correct cancellations, omissions (missed targets), false alarms (wrong digits clicked) and time — indicators of sustained attention and processing speed. The current targets are always shown above the grid.',rules:[{key:'TARGETS',desc:'Click every 3 and every 7'},{key:'IGNORE',desc:'Leave all other digits (0,1,2,4,5,6,8,9)'},{key:'FAST',desc:'Work as quickly and accurately as you can'},{key:'METRICS',desc:'Correct, omissions, false alarms, time'}]},
  STAR:{name:'STAR CANCELLATION',body:'Find and click each small target star among distractors (large stars, letters, short words); 52 targets total. Classic Behavioural Inattention Test (BIT) screen for left hemispatial neglect (post-stroke, lesions). Score: targets found, asymmetry (L vs R), time.',rules:[{key:'CLICK',desc:'Click only small stars'},{key:'IGNORE',desc:'Large stars, letters, words'},{key:'ASYMMETRY',desc:'L/R difference in targets found'},{key:'NEGLECT',desc:'Targets on one side consistently missed'}]},
  TASKSWITCH:{name:'TASK SWITCH',body:'Alternate two classification rules with a cue; switch cost = RT slowdown on switch trials; measures cognitive flexibility and task reconfiguration.',rules:[{key:'CUE',desc:'Frame colour tells you which rule to use this trial'},{key:'F',desc:'First option (per the cued rule)'},{key:'J',desc:'Second option (per the cued rule)'},{key:'COST',desc:'Switch cost = RT switch − RT repeat'}]},
  EMOTSTROOP:{name:'EMOTIONAL STROOP',body:'Name the ink color of emotional vs neutral words; affective interference slows RT for emotional words; measures attentional bias toward threat or trauma-relevant content.',rules:[{key:'COLOR',desc:'Respond to INK COLOR'},{key:'IGNORE',desc:'Word meaning'},{key:'EMOTION',desc:'Threatening/negative words slow RT'},{key:'BIAS',desc:'Marker of anxiety, PTSD, phobias'}]},
  SUBITIZE:{name:'SUBITIZING',body:'Rapidly enumerate 1–8 dots; flat RT slope 1–4 (subitizing) vs steep slope 4+ (counting); processing speed of numerical magnitudes. Distinguishes pre-numerical and numerical thinking.',rules:[{key:'VIEW',desc:'Dots appear briefly'},{key:'RESPOND',desc:'Enter the count'},{key:'SUBITIZE',desc:'1–4: fast, flat RT'},{key:'COUNT',desc:'5+: RT increases linearly'}]},
  FLANKER:{name:'ERIKSEN FLANKER',body:'Central arrow flanked by congruent or incongruent arrows; flanker interference slows RT and elevates errors. Measures selective attention and response conflict. ACC-mediated; classic ERN-generating task.',rules:[{key:'F',desc:'LEFT — arrow points left'},{key:'J',desc:'RIGHT — arrow points right'},{key:'CONGRUENT',desc:'Flankers same direction as target'},{key:'INCONGRUENT',desc:'Flankers opposite to target — interference'}]},
  STOP:{name:'STOP SIGNAL',body:'Go task with occasional stop signals (tone); SSRT (stop-signal reaction time) estimates inhibitory control. Sensitive to ADHD, substance use, frontal lesions.',rules:[{key:'GO',desc:'Respond fast to arrows'},{key:'STOP',desc:'Withhold when tone follows'},{key:'SSRT',desc:'Inhibitory control estimate'},{key:'STAIRCASE',desc:'Stop-signal delay adapts to performance'}]},
  STROOP:{name:'STROOP',body:'Name the ink color of color words; congruent ("RED" in red) is fast, incongruent ("RED" in blue) is slow. Classic measure of executive control over a prepotent reading response.',rules:[{key:'COLOR',desc:'Respond to INK COLOR'},{key:'IGNORE',desc:'Word meaning'},{key:'CONGRUENT',desc:'Word matches color → fast'},{key:'INCONGRUENT',desc:'Word conflicts with color → slow'}]},
  DST:{name:'DIGIT SPAN',body:'Forward and backward digit span — verbal working memory. Forward span ~7±2 (Miller); backward span ~5±1, more sensitive to executive demands and frontal damage.',rules:[{key:'FORWARD',desc:'Repeat digits in heard order'},{key:'BACKWARD',desc:'Repeat in reverse order'},{key:'SPAN',desc:'Longest correct sequence'},{key:'FRONTAL',desc:'Backward span sensitive to frontal lesions'}]},
  FTT:{name:'FINGER TAPPING',body:'Halstead-Reitan finger tapping test; dominant and non-dominant hand. Measures motor speed and motor cortex integrity. Sensitive to TBI, Parkinson disease, lateralized lesions.',rules:[{key:'TAP',desc:'Press SPACE as fast as possible for 10 s'},{key:'DOMINANT',desc:'Right-handers usually faster on right'},{key:'5 TRIALS',desc:'Per hand, mean taps/10 s recorded'},{key:'CLINICAL',desc:'Slower in TBI, Parkinson disease'}]},

  // ══ EXECUTIVE FUNCTIONS ══════════════════════════════════════
  TOL:{name:'TOWER OF LONDON',body:'Move colored disks to reach a target configuration in minimum moves; measures executive planning, prefrontal inhibition, and problem-solving; sensitive to frontal-lobe dysfunction.',rules:[{key:'GOAL',desc:'Reach the displayed configuration'},{key:'MINIMUM',desc:'Use minimum moves'},{key:'RULES',desc:'One disk per move; pegs have limited capacity'},{key:'PLAN',desc:'Plan before moving'}]},
  MATRIX:{name:'MATRIX REASONING',body:'Complete the pattern; non-verbal fluid intelligence; culture-neutral; sensitive to global cognitive decline. Analogous to Raven matrices.',rules:[{key:'VIEW',desc:'3×3 matrix with one cell missing'},{key:'CHOOSE',desc:'Select the item that completes the pattern'},{key:'RULES',desc:'Rows/columns follow logical transformations'},{key:'Gf',desc:'Marker of fluid intelligence'}]},
  META:{name:'METACOGNITION',body:'Confidence estimates over memory decisions; type-2 d-prime; metacognitive efficiency; impaired in schizophrenia and anosognosia. Measures relation between accuracy and confidence.',rules:[{key:'STUDY',desc:'Memorize words'},{key:'TEST',desc:'OLD or NEW?'},{key:'CONFIDENCE',desc:'Rate confidence 1–6'},{key:'d′2',desc:'RT difference for confident-correct vs errors'}]},

  // ══ PROCESSING SPEED ═════════════════════════════════════════
  SYMSEARCH:{name:'SYMBOL SEARCH',body:'WAIS-IV subtest — scan a row of symbols and decide if either of two targets appears; processing speed index together with digit-symbol coding.',rules:[{key:'TARGET',desc:'Two target symbols on the left'},{key:'SEARCH',desc:'5 symbols on the right'},{key:'YES / NO',desc:'Does a target appear among the 5?'},{key:'SPEED',desc:'120 s — complete as many as possible'}]},
  PASAT:{name:'PASAT',body:'Paced Auditory Serial Addition Test — single digits at fixed pace; add each new digit to the previous one; measures divided attention, WM updating, and processing speed; standard in MS and TBI evaluation.',rules:[{key:'LISTEN',desc:'Single digits via headphones'},{key:'ADD',desc:'Add current digit to the PREVIOUS one (not running sum)'},{key:'PACE',desc:'One digit every 3 s (or 2 s)'},{key:'STANDARD',desc:'Used in MSFC MS battery'}]},
  DSC:{name:'DIGIT-SYMBOL CODING',body:'WAIS-IV processing speed subtest — match digits 1–9 to corresponding symbols using a key; complete as many in 120 s as possible. Highly sensitive to global cognitive slowing, MS, TBI.',rules:[{key:'KEY',desc:'1–9 mapped to symbols at top'},{key:'WRITE',desc:'Fill in the symbol for each digit'},{key:'120 s',desc:'Complete as many as possible'},{key:'GLOBAL',desc:'Sensitive to processing-speed decline'}]},
  TMT:{name:'TRAIL MAKING TEST',body:'TMT-A: connect numbers 1–25 in order. TMT-B: alternate numbers and letters (1-A-2-B...). B-A difference indexes set-shifting and cognitive flexibility; sensitive to frontal-lobe damage and executive dysfunction.',rules:[{key:'TMT-A',desc:'Connect 1-2-3...-25 in order'},{key:'TMT-B',desc:'Alternate: 1-A-2-B-3-C...'},{key:'SPEED',desc:'Complete as fast as possible'},{key:'B−A',desc:'Set-shifting cost'}]},

  // ══ MEMORY ═══════════════════════════════════════════════════
  RAVLT:{name:'RAVLT — VERBAL LEARNING',body:'Rey Auditory Verbal Learning Test — a 15-word list shown 5 times; an interference list; immediate test; 20-min delayed test. Responses use recognition: for each word, press F for OLD (on the list) or J for NEW. Yields a learning curve, proactive interference, retention, and false alarms — a standard of verbal memory assessment.',rules:[{key:'5 TRIALS',desc:'Same list shown 5 times'},{key:'F = OLD / J = NEW',desc:'Judge each word: was it on the list?'},{key:'INTERFERE',desc:'List B — once, distractor'},{key:'DELAY',desc:'Final test after 20 min'}]},
  CVLT:{name:'CVLT — CALIFORNIA VERBAL LEARNING',body:'California Verbal Learning Test — 16-word "shopping list" from 4 semantic categories; 5 learning trials; short and long delayed free and cued recall; recognition; measures learning curve, semantic clustering, serial position, and retention.',rules:[{key:'5 TRIALS',desc:'Same list 5 times'},{key:'CATEGORIES',desc:'4 semantic categories, covert'},{key:'CLUSTER',desc:'Spontaneous semantic clustering'},{key:'CUES',desc:'Category-cued recall'}]},
  PAL:{name:'PAIRED ASSOCIATES LEARNING',body:'Study word-word pairs; then, given the first word, choose the word it was paired with from several options (multiple-choice recognition — no typing). Measures hippocampal associative binding; sensitive to early Alzheimer disease.',rules:[{key:'STUDY',desc:'Word pairs presented together'},{key:'TEST',desc:'First word shown → pick the paired word from the choices'},{key:'KEYS',desc:'Click an option or press its number (1–4)'},{key:'AD MARKER',desc:'Early decline in Alzheimer disease'}]},
  SRCMEM:{name:'SOURCE MEMORY',body:'Remember not only what but where you learned it; frontal-lobe function; dissociates recollection from familiarity. Evaluates not the item itself but its context.',rules:[{key:'STUDY',desc:'Words in two different fonts/colors'},{key:'OLD?',desc:'First: did you see the word?'},{key:'SOURCE?',desc:'Then: which font/color?'},{key:'FRONTAL',desc:'Frontal lesions reduce source memory'}]},
  PROSMEM:{name:'PROSPECTIVE MEMORY',body:'Remember to press a key when a target appears during an ongoing task; often impaired in TBI and aging. "Memory of intentions"; prefrontal function.',rules:[{key:'ONGOING',desc:'Perform lexical decision'},{key:'INTENTION',desc:'When "BOAT" appears — press Q'},{key:'RARE',desc:'Target is rare (~5%)'},{key:'PLAN MEM',desc:'Prefrontal function'}]},
  SEMFLUENCY:{name:'SEMANTIC FLUENCY',body:'Name as many animals/foods/tools as possible in 60 s; total and clustering indices index frontal/temporal lobe integrity. Standard neuropsych measure.',rules:[{key:'60 SECONDS',desc:'Name as many as possible'},{key:'CATEGORY',desc:'E.g., animals'},{key:'CLUSTER',desc:'Semantically related groups'},{key:'SWITCH',desc:'Transitions between subcategories'}]},
  PHONFLUE:{name:'PHONEMIC FLUENCY (FAS)',body:'Name as many words as possible beginning with F, then A, then S, 60 s each; phonemic fluency indexes frontal lobe integrity and lexical access speed; distinct from semantic fluency.',rules:[{key:'60 SECONDS',desc:'Per letter'},{key:'LETTERS',desc:'F, then A, then S'},{key:'EXCLUSIONS',desc:'No proper nouns or same-root words'},{key:'FRONTAL',desc:'Sensitive to frontal dysfunction'}]},

  // ══ LANGUAGE & LEXICON ════════════════════════════════════════
  LEXDEC:{name:'LEXICAL DECISION',body:'Word vs non-word as fast as possible; RT depends on word frequency, imageability, and orthographic neighborhood size. Standard psycholinguistic task.',rules:[{key:'F',desc:'WORD'},{key:'J',desc:'NON-WORD'},{key:'SPEED',desc:'Respond fast'},{key:'FREQUENCY',desc:'High-frequency words → faster'}]},
  BNT:{name:'BOSTON NAMING TEST',body:'Identify line drawings of objects by choosing the correct name from several options (multiple-choice — no typing or speaking); graded difficulty; sensitive to temporal-lobe damage and Alzheimer disease. Standard of confrontation naming assessment.',rules:[{key:'LOOK',desc:'An object drawing is shown'},{key:'CHOOSE',desc:'Pick the correct name from the options'},{key:'KEYS',desc:'Click an option or press its number (1–4)'},{key:'GRADED',desc:'Easy to hard'}]},
  PNT:{name:'PICTURE NAMING TASK',body:'Confrontation naming with line drawings; semantic/phonemic cues offered on failure; assesses lexical retrieval and semantic memory. Brief alternative to BNT for screening.',rules:[{key:'MIC',desc:'Microphone required'},{key:'NAME',desc:'Identify the object'},{key:'CUES',desc:'Semantic and phonemic cues if needed'},{key:'SCORE',desc:'Correct, with cue, or fail'}]},

  // ══ VISUOSPATIAL ══════════════════════════════════════════════
  JLO:{name:'JUDGMENT OF LINE ORIENTATION',body:'Judgment of Line Orientation (JLO, Benton) — match two angled segments to a reference fan of 11 lines; measures visuospatial perception; right-parietal lobe function; sensitive to hemispatial neglect and parietal lesions.',rules:[{key:'FAN',desc:'11 lines, numbered 1–11'},{key:'MATCH',desc:'Find the 2 upper matching lines'},{key:'PARIETAL',desc:'Sensitive to right parietal cortex'},{key:'NEGLECT',desc:'Systematic bias toward left side'}]},
  TOJ:{name:'TEMPORAL ORDER JUDGMENT',body:'Which stimulus appeared first? Staircase estimation of JND; sensitive to temporal dysfunction in basal ganglia and cerebellum. Marker of chronesthesia.',rules:[{key:'TWO STIMULI',desc:'Left and right with small SOA'},{key:'F',desc:'LEFT FIRST'},{key:'J',desc:'RIGHT FIRST'},{key:'STAIRCASE',desc:'SOA converges to 75% accuracy'}]},
  MRT:{name:'MENTAL ROTATION',body:'Shepard-Metzler 3D mental rotation; RT increases linearly with angular disparity; measures visuospatial transformation. Gender-difference research classic.',rules:[{key:'COMPARE',desc:'Two 3D figures'},{key:'F',desc:'SAME — one is a rotation of the other'},{key:'J',desc:'MIRROR — they are mirror images'},{key:'LINEAR',desc:'RT increases with rotation angle'}]},

  // ══ SOCIAL COGNITION ══════════════════════════════════════════
  RMET:{name:'READING THE MIND IN THE EYES',body:'Reading the Mind in the Eyes (Baron-Cohen) — infer mental state from photos of the eye region; 4-alternative forced choice; measures theory of mind / social cognition; impaired in ASD, alexithymia, and frontal lesions.',rules:[{key:'VIEW',desc:'Only the eye region'},{key:'4 CHOICES',desc:'Choose from 4 mental states'},{key:'ToM',desc:'Theory of mind / mentalizing'},{key:'AUTISM',desc:'Reduced performance in ASD'}]},
  FER:{name:'FACIAL EMOTION RECOGNITION',body:'Identify six basic emotions; affective processing dependent on amygdala; impaired in amygdala lesions and depression. Ekman basic-emotion paradigm.',rules:[{key:'VIEW',desc:'Face shows one of 6 emotions'},{key:'6 EMOTIONS',desc:'Joy, sadness, anger, fear, disgust, surprise'},{key:'AMYGDALA',desc:'Especially fear and anger'},{key:'DEPRESSION',desc:'Bias toward negative emotions'}]},

  // ══ DECISION-MAKING ═══════════════════════════════════════════
  IGT:{name:'IOWA GAMBLING TASK',body:'Choose from four decks; favorable (C/D) vs unfavorable (A/B); measures somatic marker / ventromedial prefrontal cortex function; impaired in addiction, vmPFC lesions, and psychopathy.',rules:[{key:'4 DECKS',desc:'A, B, C, D — hidden distributions'},{key:'DECIDE',desc:'Choose one deck per turn'},{key:'FEEDBACK',desc:'Win + random loss'},{key:'SOM. MARKER',desc:'Healthy individuals shift to C/D over time'}]},
  PRL:{name:'PROBABILISTIC REVERSAL LEARNING',body:'Two stimuli are offered each trial; one is "good" and is rewarded on most choices (80%), the other is "bad" and is rewarded rarely (20%). Learn which is better from the probabilistic feedback — then, without warning, the contingencies reverse and you must unlearn and switch. The task isolates reward-based cognitive flexibility from initial acquisition: the key signature is perseveration — continuing to pick the previously-good stimulus after a reversal. Because feedback is the critical event, it pairs naturally with the feedback-locked ERPs in this battery (FRN and the reward positivity RewP, larger to unexpected reward/omission). Reversal learning is impaired in OCD, depression, Parkinson\'s disease, ventral-striatal and orbitofrontal damage, and is modulated by dopamine and serotonin.',rules:[{key:'F / J',desc:'Choose the LEFT (F) or RIGHT (J) stimulus — or click it'},{key:'80 / 20',desc:'The good stimulus is rewarded ~80% of the time, the bad ~20%'},{key:'REVERSAL',desc:'The good and bad stimuli swap without warning — adapt quickly'},{key:'WIN-STAY',desc:'Probabilistic feedback means a single loss need not mean you chose wrong'},{key:'MEASURES',desc:'Accuracy, reversals completed, perseverative errors, win-stay / lose-shift'}]},
  DD:{name:'DELAY DISCOUNTING',body:'How much is a future reward worth right now? On each trial you choose between a smaller amount available immediately and a larger amount ($1000) available after a delay. An adjusting-amount staircase raises or lowers the immediate offer based on your choices until it converges on your indifference point — the immediate sum you value equally to $1000 later — at each of several delays from days to years. Those indifference points trace a discounting curve, summarized by a hyperbolic discount rate k (steeper = more impulsive) and the model-free area under the curve (Myerson, Green & Warusawitharana, 2001). Delay discounting is a stable trait-like index of impulsive choice, steepened in substance use disorders, gambling, ADHD, and obesity, and the value comparison engages ventromedial prefrontal and striatal reward circuitry — complementing the feedback ERPs (RewP/FRN) in this battery.',rules:[{key:'F / J',desc:'Choose the LEFT (F) or RIGHT (J) option — or click it'},{key:'NOW vs LATER',desc:'A smaller amount now versus $1000 after a delay'},{key:'NO WRONG ANSWER',desc:'Just pick the option you genuinely prefer each time'},{key:'DELAYS',desc:'The delay grows from days to years across the run'},{key:'MEASURES',desc:'Hyperbolic k, ln(k), area-under-curve, % immediate choices'}]},
  SRTT:{name:'SERIAL REACTION TIME TASK',body:'Four boxes sit in a row; on each trial one lights up and you press its matching key (D, F, J, K) — or click it — as fast as you can. What you are not told is that the lit positions usually follow a fixed repeating ten-item sequence. Even without noticing the pattern, responses get faster as the sequence is implicitly learned. A hidden block of random positions is inserted late in the run: the jump in reaction time from sequence to random trials is the signature of procedural sequence learning. The SRTT is the classic measure of implicit/procedural motor learning (Nissen & Bullemer, 1987), preserved in amnesia but impaired with basal-ganglia and cerebellar dysfunction (Parkinson\'s, Huntington\'s). Each response is a discrete keypress, so it pairs naturally with the motor-preparation ERPs in this battery — the Bereitschaftspotential, the lateralized readiness potential, and the CNV.',rules:[{key:'D F J K',desc:'Each box maps to a key — press the one that lights up (or click it)'},{key:'BE FAST',desc:'Respond as quickly and accurately as you can'},{key:'HIDDEN SEQUENCE',desc:'Lit positions usually follow a repeating pattern — you need not try to learn it'},{key:'RANDOM BLOCK',desc:'One block is random — RT rises if you have learned the sequence'},{key:'MEASURES',desc:'RT by block, sequence-learning effect (random − sequence), accuracy'}]},
  BART:{name:'BALLOON ANALOGUE RISK TASK',body:'Inflate a balloon to earn money. Each pump adds a few cents to a temporary bank — but also brings the balloon closer to bursting. Bank the money at any time to keep it and move to the next balloon; if the balloon pops first, that balloon\'s earnings are lost. Because the burst point is hidden and rises with each pump, every pump trades a larger reward against a larger risk, capturing real-world risk-taking under uncertainty. The standard index is the adjusted average number of pumps on balloons that did not explode — higher means more risk-taking. BART riskiness correlates with sensation-seeking, impulsivity, and real-world risk behaviour, and is elevated in substance use and ADHD. As an active, feedback-rich decision task, each pump outcome (survive vs burst) and the cash-out are reward-monitoring events that pair with the FRN, reward positivity (RewP), and P300 in this battery.',rules:[{key:'PUMP (F)',desc:'Inflate the balloon — each pump adds money but raises burst risk'},{key:'BANK (J)',desc:'Collect the current balloon\'s money and move on — it is then safe'},{key:'BURST',desc:'If it pops before you bank, you lose that balloon\'s earnings'},{key:'TRADE-OFF',desc:'Bigger reward needs more pumps, but more pumps risk losing it all'},{key:'MEASURES',desc:'Adjusted average pumps, total earned, explosions, risk over time'}]},
  OSPAN:{name:'OPERATION SPAN',body:'A complex working-memory span that interleaves processing with storage. On each step you first judge whether a short arithmetic equation is correct — for example, (2 × 3) + 1 = 7? — answering TRUE or FALSE, and then a single letter appears to be remembered. After a run of three to seven such equation-plus-letter steps, you recall the letters in the exact order they appeared by clicking them on a grid. The arithmetic occupies attention so the letters cannot simply be rehearsed, which is what makes span a measure of working-memory capacity rather than short-term storage. Two scores are reported: a partial score (every letter recalled in its correct position) and an absolute score (only perfectly recalled sets). Complex span is the canonical individual-differences index of WM capacity and predicts fluid intelligence, reading comprehension, and attentional control; it complements the simple spans (digit span, Sternberg, spatial WM) already in this battery.',rules:[{key:'EQUATION',desc:'Decide if the shown arithmetic is correct — TRUE (T) or FALSE (F)'},{key:'LETTER',desc:'After each equation, remember the letter that appears'},{key:'RECALL',desc:'At the end of the set, click the letters in their original order'},{key:'KEEP UP',desc:'Answer the maths promptly — do not pause to rehearse the letters'},{key:'MEASURES',desc:'Partial & absolute span, math accuracy, recall by set size'}]},
  TBIS:{name:'TEMPORAL BISECTION',body:'A test of interval timing — the brain\'s internal clock. First you learn two standard durations: a SHORT flash and a LONG flash, each shown several times and labelled. Then, on each test trial, a flash of an intermediate duration appears and you judge whether it was nearer the SHORT or the LONG standard — there is no right answer, just your perception. The proportion of "long" judgements rises with duration, tracing a psychometric function. Its 50% crossing is the bisection point (the subjective midpoint of the interval), and the steepness gives the Weber ratio, a normalized index of timing precision. Bisection reveals scalar (Weber-law) properties of time perception and is sensitive to dopaminergic function, attention, and arousal — distorted in Parkinson\'s disease, schizophrenia, and ADHD. Because timed anticipation engages the contingent negative variation (CNV), this task complements the CNV measures in the battery.',rules:[{key:'LEARN',desc:'First, watch the SHORT and LONG standard durations (labelled)'},{key:'JUDGE',desc:'For each flash, decide if it was nearer SHORT (F) or LONG (J)'},{key:'NO FEEDBACK',desc:'Test trials give no feedback — trust your sense of time'},{key:'DO NOT COUNT',desc:'Durations are brief — judge by feel, do not count'},{key:'MEASURES',desc:'Bisection point, Weber ratio, proportion-long curve'}]},

  // ══ SCREENING SCALES ══════════════════════════════════════════
  MOCA:{name:'MoCA — MONTREAL COGNITIVE ASSESSMENT',body:'Montreal Cognitive Assessment — the most widely used brief cognitive screening instrument, developed by Nasreddine et al. (2005). Evaluates ten cognitive domains in ~10 minutes. Maximum 30 points; <26 is a positive screen for mild cognitive impairment.',rules:[{key:'DOMAINS',desc:'10: visuospatial, naming, memory, attention, language, abstraction, orientation'},{key:'SCORE',desc:'Total /30 — ≥26 normal; <26 positive'},{key:'TIME',desc:'~10 minutes'},{key:'EDUCATION',desc:'+1 point if ≤12 years formal education'}]},
  CDT:{name:'CLOCK DRAWING TEST',body:'Draw a clock showing 11:10; classic screen for dementia, executive dysfunction, hemispatial neglect, constructive apraxia. Used in MoCA, MMSE-2, Mini-Cog. Browser version captures full stroke data + completion time for manual scoring (Shulman 6-point or Sunderland 10-point scale).',rules:[{key:'DRAW',desc:'Clock face with all numbers'},{key:'TIME',desc:'Set hands to 11:10'},{key:'SCORE',desc:'Shulman 6-point or Sunderland 10-point'},{key:'STROKES',desc:'Complete stroke data saved'}]},
  PHQ9:{name:'PHQ-9 — DEPRESSION',body:'PHQ-9 (Kroenke et al., 2001) — the most validated brief screen for depression. Nine items correspond to DSM-5 criteria for major depressive episode; rating 0–3 over the last two weeks. A score ≥10 has sensitivity 88% and specificity 88% for major depression. Public domain.',rules:[{key:'2 WEEKS',desc:'Rate how often the problem bothered you over 2 weeks'},{key:'0–3',desc:'0=not at all / 1=several days / 2=more than half / 3=nearly every day'},{key:'THRESHOLD',desc:'Total ≥10 = positive screen'},{key:'ITEM 9',desc:'Suicidal ideation — clinical follow-up'},{key:'MONITOR',desc:'A 5-point change is clinically significant'}]},
  GAD7:{name:'GAD-7 — ANXIETY',body:'GAD-7 (Spitzer et al., 2006) — screen for generalized anxiety disorder and anxiety severity. Seven items 0–3 over the last two weeks. A score ≥10 has sensitivity 89% and specificity 82% for GAD; also effectively screens panic, social anxiety, and PTSD. Public domain.',rules:[{key:'2 WEEKS',desc:'Rate the last 2 weeks'},{key:'0–3',desc:'0=not at all / 1=several days / 2=more than half / 3=nearly every day'},{key:'THRESHOLD',desc:'≥10 = positive screen'},{key:'BROAD',desc:'GAD, panic, social anxiety, PTSD'},{key:'MONITOR',desc:'Tracks treatment response'}]},
  PCL5:{name:'PCL-5 — PTSD',body:'PCL-5 (Weathers et al., 2013) — PTSD symptom severity per DSM-5. Twenty items cover intrusion (5), avoidance (2), negative cognition/mood (7) and arousal/reactivity (6). Each rated 0–4 over the last month. Threshold ≥33 is typically used for positive screen. Public domain.',rules:[{key:'MONTH',desc:'Rate over the last month'},{key:'0–4',desc:'0=not at all / ... / 4=extremely'},{key:'THRESHOLD',desc:'Total ≥33 = probable PTSD'},{key:'CLUSTERS',desc:'Intrusion / avoidance / cognition-mood / arousal'},{key:'DSM-5',desc:'Cluster scoring gives provisional diagnosis'}]},
  AUDIT:{name:'AUDIT — ALCOHOL USE',body:'AUDIT (Saunders et al., 1993, WHO) — gold standard screen for alcohol use disorders. Ten items: consumption (1–3), dependence (4–6), harm (7–10). Score 0–7 low risk; 8–15 hazardous; 16–19 harmful; 20+ probable dependence. Public domain.',rules:[{key:'YEAR',desc:'Rate the last 12 months'},{key:'UNIT',desc:'≈10 g ethanol (1 beer / 1 glass wine)'},{key:'THRESHOLD',desc:'≥8 — hazardous / harmful use'},{key:'ZONES',desc:'I (low) / II (hazardous) / III (harmful) / IV (dependence)'},{key:'WHO',desc:'Global standard'}]},
  ASRS:{name:'ASRS — ADULT ADHD',body:'ASRS-v1.1 (Kessler et al., 2005) — adult ADHD screen. Contains 18 questions matching DSM-IV ADHD criteria, rated 0–4 over the last 6 months. Part A (questions 1–6) is a validated brief screen; ≥4 of 6 items in the shaded range = positive screen (sensitivity 68.7%, specificity 99.5%). Public domain.',rules:[{key:'6 MONTHS',desc:'Rate the last 6 months'},{key:'PART A',desc:'Questions 1–6 — validated screen'},{key:'THRESHOLD',desc:'≥4 of 6 in shaded range = positive'},{key:'BOTH TYPES',desc:'Inattention and hyperactivity-impulsivity'},{key:'ADULTS',desc:'Not for children — pediatric scales separate'}]},
  HACHINSKI:{name:'HACHINSKI ISCHEMIC SCALE',body:'Hachinski Ischemic Score (Hachinski, Iliff, Zilhka et al., 1975, Arch Neurol 32:632–637) — 13-item clinician-rated checklist to differentiate multi-infarct (vascular) dementia from Alzheimer-type dementia. Each item is scored present (1 or 2 points) or absent (0). Total range 0–18. ≤4 → primary degenerative; 5–6 → mixed; ≥7 → multi-infarct.',rules:[{key:'CLINICIAN',desc:'Completed from patient and informant history'},{key:'13 ITEMS',desc:'Present = 1 or 2 points; absent = 0'},{key:'WEIGHTS',desc:'2 points: abrupt onset, fluctuation, strokes, focal symptoms/signs'},{key:'THRESHOLDS',desc:'≤4 = AD-type; 5–6 = mixed; ≥7 = multi-infarct'},{key:'ADJUNCT',desc:'Use with neuroimaging'}]},
  KATZ:{name:'KATZ INDEX — BASIC ADL',body:'Katz Index (Katz et al., 1963, JAMA 185:914–919) — the most widely used measure of basic activities of daily living. Six items — bathing, dressing, toileting, transferring, continence, and feeding — each scored 1 (independent) or 0 (dependent). Total 0–6. The Katz scale captures fundamental self-care abilities that decline late in dementia and disability progression.',rules:[{key:'CLINICIAN',desc:'Scored by clinician or informant'},{key:'6 ITEMS',desc:'Bath · Dress · Toilet · Transfer · Continence · Feed'},{key:'BINARY',desc:'1 (independent) or 0 (dependent / needs help)'},{key:'SCALE',desc:'6 = full function · 4 = moderate · ≤2 = severe impairment'},{key:'PAIRED',desc:'Often combined with Lawton IADL'}]},
  LAWTON:{name:'LAWTON IADL SCALE',body:'Lawton IADL Scale (Lawton & Brody, 1969, Gerontologist 9:179–186) — measures higher-order instrumental activities necessary for independent community living. Eight items — telephone, shopping, meal preparation, housekeeping, laundry, transportation, medication, and finances — each 0 or 1. Modern unisex scoring 0–8 (lower = more impaired). IADL decline typically precedes basic ADL decline in dementia by years.',rules:[{key:'CLINICIAN',desc:'Scored by observation or informant report'},{key:'8 ITEMS',desc:'Phone · Shop · Cook · House · Laundry · Transport · Meds · Finance'},{key:'0–8',desc:'Each item 0 (dependent) or 1 (independent)'},{key:'EARLY MARKER',desc:'IADL decline precedes basic ADL decline'},{key:'PAIRED',desc:'Often combined with Katz ADL'}]},

  // ══ SERIAL PROBE RECOGNITION (Sands & Wright, Science 1980) ════
  SPR:{name:'SERIAL PROBE RECOGNITION',body:'Visual serial probe recognition — the paradigm of Sands & Wright (1980, Science 209:938; JEP:ABP 6:386). A list of N distinct items is presented one at a time, followed by a single probe. Subject judges whether the probe was in the list. With trial-unique stimuli the serial position function shows clear primacy and recency, mirroring the classic monkey/human comparison. Procedural shape stimuli used by default; load your own image set via the ♬ CUSTOM IMAGES sidebar button to replicate the photographic paradigm.',rules:[{key:'STUDY',desc:'Watch N items shown one at a time (defaults: 10 then 20)'},{key:'PROBE',desc:'One item appears after a retention interval'},{key:'F / ←CLICK',desc:'YES — probe was in the list'},{key:'J / →CLICK',desc:'NO — probe was not in the list'},{key:'POSITION',desc:'Probes sample all serial positions equally'},{key:'OUTPUT',desc:'Serial position function · d-prime · RT'}]},
  'SPR-A':{name:'SERIAL PROBE RECOGNITION (AUDITORY)',body:'Auditory analogue of the Sands & Wright serial-probe paradigm. A list of N distinct sound stimuli is presented sequentially, then a single probe sound is played. Subject judges whether the probe was in the list. Requires user-loaded sound files: open ♬ CUSTOM AUDIO from the sidebar and add at least 8 files to the SPR-A pool. With trial-unique sounds the serial position function shows the same primacy/recency structure as the visual version.',rules:[{key:'LOAD',desc:'Load ≥8 sounds via ♬ CUSTOM AUDIO → SPR-A POOL'},{key:'LISTEN',desc:'Hear N sounds one at a time'},{key:'PROBE',desc:'One sound replays after the retention interval'},{key:'F / ←CLICK',desc:'YES — probe was in the list'},{key:'J / →CLICK',desc:'NO — probe was not in the list'},{key:'OUTPUT',desc:'Serial position function · d-prime · RT'}]},
  MTS:{name:'MATCHING-TO-SAMPLE',body:'Matching-to-sample — the discrimination paradigm of Wright, Santiago, Sands et al. A sample stimulus is presented, then a set of 2–4 comparison stimuli appears; the subject chooses the comparison that matches the sample. In Simultaneous MTS the sample remains visible while choosing; in Delayed MTS (DMTS) the sample is removed and a retention interval intervenes before the comparisons appear, probing short-term memory. Uses the same procedural shapes or the ⚛ CUSTOM IMAGES pool as SPR.',rules:[{key:'SAMPLE',desc:'A single sample stimulus appears'},{key:'COMPARISONS',desc:'2–4 choices appear (one matches the sample)'},{key:'CHOOSE',desc:'Click the match, or press 1 / 2 / 3 / 4'},{key:'SIMULTANEOUS',desc:'Sample stays visible while choosing'},{key:'DELAYED (DMTS)',desc:'Sample hidden + retention interval before choices'},{key:'OUTPUT',desc:'Accuracy · RT · matching concept transfer'}]}
};

let currentIntroTask = null;

function showIntro(task) {
  currentIntroTask = task;
  try{ localStorage.setItem('cognosLastTask', task); }catch(_){}
  // Resolve paradigm definition with a multi-source fallback chain:
  // 1. I18N[currentLang].paradigms[task] — localized version if user has selected a language
  // 2. PARADIGMS[task] — original English source
  // 3. Search ALL language paradigm registries for any version containing this task
  //
  // This guards against the historical case where English PARADIGMS contains
  // only ~10 task definitions, but PARADIGMS_RU/ES/FR/DE each contain ~108
  // entries — clicking an unlocalized ERP tile would otherwise throw
  // TypeError on `p.name` because `p` was undefined.
  var p = (I18N[currentLang] && I18N[currentLang].paradigms && I18N[currentLang].paradigms[task]) || PARADIGMS[task];
  if(!p){
    // Last-resort fallback: scan every other language for this task.
    // Order is language-aware — closer linguistic neighbours come first so the
    // user sees the most intelligible fallback text. Russian has the broadest
    // coverage (~108 paradigms) and serves as the default tail.
    var fallbackLangs;
    if(currentLang === 'pt')      fallbackLangs = ['es','en','fr','de','ru'];
    else if(currentLang === 'es') fallbackLangs = ['pt','en','fr','de','ru'];
    else if(currentLang === 'fr') fallbackLangs = ['es','pt','en','de','ru'];
    else if(currentLang === 'de') fallbackLangs = ['en','fr','es','ru'];
    else                          fallbackLangs = ['ru','es','fr','de','en'];
    for(var fi=0; fi<fallbackLangs.length && !p; fi++){
      var fl = fallbackLangs[fi];
      if(I18N[fl] && I18N[fl].paradigms && I18N[fl].paradigms[task]){
        p = I18N[fl].paradigms[task];
      }
    }
  }
  if(!p){
    // No paradigm definition anywhere — show a graceful placeholder rather than crashing.
    console.warn('showIntro: no paradigm definition for task ' + task);
    p = { name: task, body: '(No description available for this task.)', rules: [] };
  }
  $('introTaskName').textContent = p.name;
  // Render the body as escaped HTML (safe for any '<' in other tasks' text),
  // then apply per-task highlights — e.g. DIGCAN shows its target digits in
  // gold to match the animation.
  var _esc = function(s){ return String(s).replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;'); };
  var bodyHTML = _esc(p.body);
  if(task === 'DIGCAN'){
    // gold-highlight the target digits 3 and 7 where they appear as standalone
    // numbers (e.g. "every 3 and every 7"), not inside longer numbers.
    bodyHTML = bodyHTML.replace(/(?<!\d)([37])(?!\d)/g, '<span style="color:var(--gold);font-weight:600;">$1</span>');
  }
  $('introBody').innerHTML = bodyHTML;

  const rulesEl = $('introRules');
  rulesEl.innerHTML = '';
  p.rules.forEach(r => {
    const div = document.createElement('div');
    div.className = 'intro-rule';
    var desc = _esc(r.desc);
    if(task === 'DIGCAN'){
      desc = desc.replace(/(?<!\d)([37])(?!\d)/g, '<span style="color:var(--gold);font-weight:600;">$1</span>');
    }
    div.innerHTML = `<span class="intro-rule-key">${_esc(r.key)}</span><span>${desc}</span>`;
    rulesEl.appendChild(div);
  });
  // Normalise the just-rendered intro text to the selected English variant
  // (US by default). showIntro builds this text fresh each time, after any
  // load-time spelling pass, so it must be converted here too.
  try{
    if((!currentLang || currentLang==='en') && typeof applyEnglishVariantSpelling==='function'){
      applyEnglishVariantSpelling(window._enVariant || 'en-US');
    }
  }catch(e){}

  // show posner-specific settings hint — localized via I18N
  var posnerKey='Configure cue type & SOA before starting';
  var posnerText='';
  if(task === 'POSNER'){
    var uiBucket = I18N[currentLang] && I18N[currentLang].ui;
    posnerText = (uiBucket && uiBucket[posnerKey]) || posnerKey;
  }
  $('introPracticeNote').textContent = posnerText;

  // R12: task-specific options (variable list length for SPR/SPR-A,
  // mode toggle for MTS). Rendered into #introTaskOptions.
  _renderIntroTaskOptions(task);
  // Per-task trials: show this task's override if set, otherwise the shared
  // TRIALS value as the effective default.
  _populateIntroTrials(task);
  _renderTaskReference(task);

  hideAll();
  $('introScreen').style.display = 'flex';
  if(window._runIntroAnim) window._runIntroAnim(task);
}
// ── Per-task trials field on the intro screen ───────────────
// Some tasks have a fixed protocol (e.g. WCST runs, VRT study/test, DST span,
// FTT trial duration) and don't take a simple trial count — hide the row for
// those. Otherwise show the per-task override or the shared value as default.
var _NO_SIMPLE_TRIALS = {WCST:1, VRT:1, DST:1, FTT:1, RECALL:1, BP:1};
function _populateIntroTrials(task){
  var row=document.getElementById('introTrialsRow');
  var inp=document.getElementById('introTrialsInput');
  if(!row||!inp) return;
  if(_NO_SIMPLE_TRIALS[String(task).toUpperCase()]){ row.style.display='none'; return; }
  row.style.display='flex';
  var override=(typeof TASK_TRIALS!=='undefined')?TASK_TRIALS.get(task):null;
  var shared=parseInt((document.getElementById('trialsInput')||{}).value,10);
  inp.value = override || (shared>0?shared:'');
  _updateIntroTrialsResetState(task);
}
function introTrialsChanged(){
  var task=currentIntroTask; if(!task) return;
  var inp=document.getElementById('introTrialsInput');
  var n=parseInt(inp.value,10);
  if(typeof TASK_TRIALS!=='undefined') TASK_TRIALS.set(task, (n>0?n:0));
  _updateIntroTrialsResetState(task);
}
function introTrialsReset(){
  var task=currentIntroTask; if(!task) return;
  if(typeof TASK_TRIALS!=='undefined') TASK_TRIALS.clear(task);
  _populateIntroTrials(task);
}
function _updateIntroTrialsResetState(task){
  var btn=document.getElementById('introTrialsReset');
  if(!btn) return;
  var has=(typeof TASK_TRIALS!=='undefined') && !!TASK_TRIALS.get(task);
  btn.style.display = has ? 'inline-block' : 'none';
}

// Renders configurable controls under the rules on the intro screen.
function _renderIntroTaskOptions(task){
  var box = $('introTaskOptions');
  if (!box) return;
  if (task === 'SPR' || task === 'SPR-A') {
    var lengths = (task === 'SPR-A') ? [4, 6, 8, 10] : [4, 6, 10, 15, 20];
    var defaults = (task === 'SPR-A') ? [6, 10] : [10, 20];
    var prefix = (task === 'SPR-A') ? 'spra' : 'spr';
    var boxes = lengths.map(function(L){
      var checked = defaults.indexOf(L) >= 0 ? 'checked' : '';
      return '<label style="display:flex;align-items:center;gap:4px;cursor:pointer;font-family:\'Source Code Pro\',monospace;font-size:0.82rem;color:var(--text);">' +
             '<input type="checkbox" class="' + prefix + '-listlen-cb" value="' + L + '" ' + checked + '> ' + L + '</label>';
    }).join('');
    var stimsetHtml = (task === 'SPR') ? _buildStimsetSelector('spr-stimset') : '';
    box.innerHTML =
      '<div style="font-size:0.72rem;letter-spacing:0.14em;color:rgba(212,180,86,0.7);font-family:\'Source Code Pro\',monospace;margin-bottom:8px;">LIST LENGTHS (each contributes 3 blocks)</div>' +
      '<div style="display:flex;gap:18px;flex-wrap:wrap;align-items:center;">' + boxes + '</div>' +
      stimsetHtml;
    box.style.display = 'block';
  } else if (task === 'STB') {
    var sizes=[2,4,6,8], defaults=[4];
    // Retain the set-size choice from the previous run if one was saved.
    try{ var saved=JSON.parse(localStorage.getItem('cognosStbSetSizes')||'null'); if(Array.isArray(saved)&&saved.length) defaults=saved; }catch(_){}
    var stbBoxes=sizes.map(function(n){
      var checked=defaults.indexOf(n)>=0?'checked':'';
      return '<label style="display:flex;align-items:center;gap:4px;cursor:pointer;font-family:\'Source Code Pro\',monospace;font-size:0.85rem;color:var(--text);">'+
             '<input type="checkbox" class="stb-setsize-cb" value="'+n+'" '+checked+'> '+n+'</label>';
    }).join('');
    box.innerHTML=
      '<div style="font-size:0.72rem;letter-spacing:0.14em;color:rgba(212,180,86,0.7);font-family:\'Source Code Pro\',monospace;margin-bottom:8px;">MEMORY SET SIZE (select one or more — RT slope across sizes = scanning rate)</div>'+
      '<div style="display:flex;gap:20px;flex-wrap:wrap;align-items:center;">'+stbBoxes+'</div>';
    box.style.display='block';
  } else if (task === 'MTS') {
    box.innerHTML =
      '<div style="font-size:0.72rem;letter-spacing:0.14em;color:rgba(212,180,86,0.7);font-family:\'Source Code Pro\',monospace;margin-bottom:8px;">MODE & COMPARISONS</div>' +
      '<div style="display:flex;gap:20px;flex-wrap:wrap;align-items:center;font-family:\'Source Code Pro\',monospace;font-size:0.82rem;color:var(--text);">' +
        '<label style="display:flex;align-items:center;gap:4px;cursor:pointer;"><input type="radio" name="mts-mode" value="simultaneous" checked> Simultaneous</label>' +
        '<label style="display:flex;align-items:center;gap:4px;cursor:pointer;"><input type="radio" name="mts-mode" value="delayed"> Delayed (DMTS)</label>' +
        '<span style="color:var(--dim);margin-left:8px;">comparisons:</span>' +
        '<label style="display:flex;align-items:center;gap:4px;cursor:pointer;"><input type="radio" name="mts-ncomp" value="2"> 2</label>' +
        '<label style="display:flex;align-items:center;gap:4px;cursor:pointer;"><input type="radio" name="mts-ncomp" value="3" checked> 3</label>' +
        '<label style="display:flex;align-items:center;gap:4px;cursor:pointer;"><input type="radio" name="mts-ncomp" value="4"> 4</label>' +
      '</div>' +
      _buildStimsetSelector('mts-stimset');
    box.style.display = 'block';
  } else {
    box.style.display = 'none';
    box.innerHTML = '';
  }
}

// Builds the STIMULUS SOURCE radio group, listing every available source:
// built-in line-art objects, procedural shapes, and any loaded image pools
// (Snodgrass & Vanderwart, generic SPR). Defaults to a loaded pool if one
// exists, else the built-in objects.
function _buildStimsetSelector(groupName){
  var nObj = (window.SPR_Objects && window.SPR_Objects.count) || 65;
  var opts = [];
  // Loaded pools come first so they're easy to pick when present.
  var hasSnod = (typeof CustomImages !== 'undefined' && CustomImages.hasPool('snodgrass'));
  var hasSpr  = (typeof CustomImages !== 'undefined' && CustomImages.hasPool('spr'));
  if (hasSnod) {
    var nSnod = CustomImages.getPool('snodgrass').length;
    opts.push({ v:'snodgrass', label:'Snodgrass &amp; Vanderwart pool (' + nSnod + ')' });
  }
  if (hasSpr) {
    var nSpr = CustomImages.getPool('spr').length;
    opts.push({ v:'spr', label:'Custom image pool (' + nSpr + ')' });
  }
  opts.push({ v:'objects', label:'Built-in line-art objects (' + nObj + ')' });
  opts.push({ v:'shapes',  label:'Procedural shapes (unlimited)' });
  // Default: first loaded pool if any, else objects.
  var defaultVal = hasSnod ? 'snodgrass' : (hasSpr ? 'spr' : 'objects');
  var radios = opts.map(function(o){
    var checked = (o.v === defaultVal) ? 'checked' : '';
    return '<label style="display:flex;align-items:center;gap:4px;cursor:pointer;"><input type="radio" name="' + groupName + '" value="' + o.v + '" ' + checked + '> ' + o.label + '</label>';
  }).join('');
  return '<div style="font-size:0.72rem;letter-spacing:0.14em;color:rgba(212,180,86,0.7);font-family:\'Source Code Pro\',monospace;margin:16px 0 8px 0;">STIMULUS SOURCE</div>' +
         '<div style="display:flex;gap:18px;flex-wrap:wrap;align-items:center;font-family:\'Source Code Pro\',monospace;font-size:0.82rem;color:var(--text);">' + radios + '</div>';
}

// Read the checked list-length boxes for SPR / SPR-A.
function _sprReadListLengths(prefix){
  var cbs = document.querySelectorAll('.' + prefix + '-listlen-cb:checked');
  var out = [];
  cbs.forEach(function(cb){ out.push(parseInt(cb.value, 10)); });
  out.sort(function(a,b){ return a-b; });
  return out;
}

// Pre-task countdown: a ≥1 s "Get ready" hold, then 3 · 2 · 1, then onDone()
// launches the task. Centralised so every task gets it via the three start
// entry points (practice, main, skip-to-main). Timers are tracked so abort/
// resetAll can cancel an in-progress countdown cleanly.
var _cognosCountdownTimers=[];
function _clearCountdownTimers(){ _cognosCountdownTimers.forEach(function(t){clearTimeout(t);}); _cognosCountdownTimers=[]; }
function cognosCountdown(onDone){
  var ov=document.getElementById('cognosCountdown');
  var numEl=document.getElementById('cognosCountdownNum');
  var lblEl=document.getElementById('cognosCountdownLabel');
  if(!ov || !numEl){ onDone&&onDone(); return; }   // fail-safe: just start
  _clearCountdownTimers();
  window._cognosCountdownActive=true;
  ov.style.display='flex';
  if(lblEl) lblEl.textContent='Get ready';
  numEl.textContent='';
  function step(label, num, ms, cb){
    var t=setTimeout(function(){
      if(!window._cognosCountdownActive) return;   // aborted
      if(lblEl && label!=null) lblEl.style.opacity=(label==='')?'0':'0.7';
      numEl.textContent=num;
      cb&&cb();
    }, ms);
    _cognosCountdownTimers.push(t);
  }
  // ≥1 s "Get ready" hold (blank number), then 3, 2, 1 at 1 s each, then go.
  step(null, '',  0);          // hold: get-ready, no number, 1 s
  step('',   '3', 1000);
  step('',   '2', 2000);
  step('',   '1', 3000);
  var done=setTimeout(function(){
    if(!window._cognosCountdownActive) return;
    window._cognosCountdownActive=false;
    ov.style.display='none';
    numEl.textContent='';
    onDone&&onDone();
  }, 4000);
  _cognosCountdownTimers.push(done);
}

function startPractice() {
  // Recognition/RECALL is button-based and voice input uses the manual mic
  // button — so we never auto-launch the microphone-check wizard (its
  // permission request was interrupting tasks).
  cognosCountdown(_doStartPractice);
}
function _doStartPractice(){
  if(currentIntroTask === 'POSNER') { startPosner(true); }
  else if(currentIntroTask === 'RECALL') { startFreeRecall(true); }
  else if(currentIntroTask === 'WCST') { startWCST(true); }
  else if(currentIntroTask === 'VRT') { startVRT(true); }
  else if(currentIntroTask==='TOJ'){ startTOJ(true); }
  else if(currentIntroTask === 'CSR') { startCSR(true); }
  else if(currentIntroTask === 'P300') { startP300(true); }
  else if(currentIntroTask === 'STB') { startSTB(true); }
  else if(currentIntroTask === 'N400') { startN400(true); }
  else if(currentIntroTask==='PMN'){ startPMN(true); }
  else if(currentIntroTask === 'FLANKER') { startFlanker(true); }
  else if(currentIntroTask === 'STOP') { startStop(true); }
  else if(currentIntroTask === 'MMN') { startMMN(true); }
  else if(currentIntroTask==='ORN'){ startORN(true); }
  else if(currentIntroTask === 'P600') { startP600(true); }
  else if(currentIntroTask === 'ERN') { startERN(true); }
  else if(currentIntroTask==='PE'){ startPE(true); }
  else if(currentIntroTask === 'STROOP') { startStroop(true); }
  else if(currentIntroTask === 'DST') { startDST(true); }
  else if(currentIntroTask === 'CNV') { startCNV(true); }
  else if(currentIntroTask === 'FTT') { startFTT(true); }
  else if(currentIntroTask === 'TMT') { selectTask('TMT', true); }
  else if(currentIntroTask === 'DSC') { startDSC(true); }
  else if(currentIntroTask === 'N200') { startN200(true); }
  else if(currentIntroTask==='MFN'){ startMFN(true); }
  else if(currentIntroTask === 'N170') { startN170(true); }
  else if(currentIntroTask==='VPP'){ startVPP(true); }
  else if(currentIntroTask === 'N2PC') { startN2PC(true); }
  else if(currentIntroTask==='N2B'){ startN2B(true); }
  else if(currentIntroTask==='PD'){ startPD(true); }
  else if(currentIntroTask === 'N300') { startN300(true); }
  else if(currentIntroTask === 'ELAN') { startELAN(true); }
  else if(currentIntroTask==='LAN'){ startLAN(true); }
  else if(currentIntroTask==='CPS'){ startCPS(true); }
  else if(currentIntroTask === 'BP')   { startBP(true); }
  else if(currentIntroTask === 'MMNSP'){ startMMNS(true); }
  else if(currentIntroTask === 'SSVEP'){ startSSVEP(true); }
  else if(currentIntroTask==='ERAN'){ startERAN(true); }
  else if(currentIntroTask === 'P50')  { startP50(true); }
  else if(currentIntroTask === 'N100') { startN100(true); }
  else if(currentIntroTask==='LDAEP'){ startLDAEP(true); }
  else if(currentIntroTask==='C1'){ startC1(true); }
  else if(currentIntroTask === 'P100') { startP100(true); }
  else if(currentIntroTask === 'SCP')  { startSCP(true); }
  else if(currentIntroTask==='CDA'){ startCDA(true); }
  else if(currentIntroTask === 'P3A')  { startP3A(true); }
  else if(currentIntroTask === 'ASSR') { startASSR(true); }
  else if(currentIntroTask === 'CPT')  { startCPT(true); }
  else if(currentIntroTask === 'EMOTSTROOP') { startEmotStroop(true); }
  else if(currentIntroTask === 'TASKSWITCH') { startTaskSwitch(true); }
  else if(currentIntroTask === 'DUALTASK')   { startDualTask(true); }
  else if(currentIntroTask==='SART'){ startSART(true); }
  else if(currentIntroTask==='UFOV'){ startUFOV(true); }
  else if(currentIntroTask === 'ATTBLINK')   { startAttBlink(true); }
  else if(currentIntroTask === 'SUBITIZE')   { startSubitize(true); }
  else if(currentIntroTask === 'LEXDEC')     { startLexDec(true); }
  else if(currentIntroTask === 'SEMFLUENCY') { startSemFluency(true); }
  else if(currentIntroTask === 'PROSMEM')    { startProsMem(true); }
  else if(currentIntroTask === 'SPATWM')     { startSpatWM(true); }
  else if(currentIntroTask === 'MOCA')       { startMoCA(true); }
  else if(currentIntroTask==='PHQ9'){ startPHQ9(true); }
  else if(currentIntroTask==='GAD7'){ startGAD7(true); }
  else if(currentIntroTask==='PCL5'){ startPCL5(true); }
  else if(currentIntroTask==='AUDIT'){ startAUDIT(true); }
  else if(currentIntroTask==='ASRS'){ startASRS(true); }
  else if(currentIntroTask==='HACHINSKI'){ startHACHINSKI(true); }
  else if(currentIntroTask==='KATZ'){ startKATZ(true); }
  else if(currentIntroTask==='LAWTON'){ startLAWTON(true); }
  else if(currentIntroTask === 'REWP')       { startREWP(true); }
  else if(currentIntroTask==='LPC'){ startLPC(true); }
  else if(currentIntroTask==='FRN'){ startFRN(true); }
  else if(currentIntroTask === 'ABR') { startABR(true); }
  else if(currentIntroTask==='N1P2'){ startN1P2(true); }
  else if(currentIntroTask==='RON'){ startRON(true); }
  else if(currentIntroTask === 'P1N1') { startP1N1(true); }
  else if(currentIntroTask === 'CNVW') { startCNVW(true); }
  else if(currentIntroTask === 'DIGCAN') { startDigCan(true); }
  else if(currentIntroTask==='SYMSEARCH'){ startSymSearch(true); }
  else if(currentIntroTask==='PHONFLUE'){ startPhonFlue(true); }
  else if(currentIntroTask==='JLO'){ startJLO(true); }
  else if(currentIntroTask==='PASAT'){ startPASAT(true); }
  else if(currentIntroTask==='RAVLT'){ startRAVLT(true); }
  else if(currentIntroTask==='CVLT'){ startCVLT(true); }
  else if(currentIntroTask==='PAL'){ startPAL(true); }
  else if(currentIntroTask==='SRCMEM'){ startSrcMem(true); }
  else if(currentIntroTask==='IGT'){ startIGT(true); }
  else if(currentIntroTask==='PRL'){ startPRL(true); }
  else if(currentIntroTask==='DD'){ startDD(true); }
  else if(currentIntroTask==='SRTT'){ startSRTT(true); }
  else if(currentIntroTask==='BART'){ startBART(true); }
  else if(currentIntroTask==='OSPAN'){ startOSPAN(true); }
  else if(currentIntroTask==='TBIS'){ startTBIS(true); }
  else if(currentIntroTask==='TOL'){ startTOL(true); }
  else if(currentIntroTask==='MATRIX'){ startMatrix(true); }
  else if(currentIntroTask==='META'){ startMeta(true); }
  else if(currentIntroTask==='RMET'){ startRMET(true); }
  else if(currentIntroTask==='FER'){ startFER(true); }
  else if(currentIntroTask==='SNELLEN'){ startSnellen(true); }
  else if(currentIntroTask==='ISHIHARA'){ startIshihara(true); }
  else if(currentIntroTask==='SEASHORE'){ startSeashore(true); }
  else if(currentIntroTask==='AUDIOM'){ startAudiom(true); }
  else if(currentIntroTask==='GABOR'){ startGabor(true); }
  else if(currentIntroTask==='CDT'){ startCDT(true); }
  else if(currentIntroTask==='STAR'){ startStar(true); }
  else if(currentIntroTask==='SPR'){ startSPR(true); }
  else if(currentIntroTask==='SPR-A'){ startSPRA(true); }
  else if(currentIntroTask==='MTS'){ startMTS(true); }
  else if(currentIntroTask === 'LRP')  { startLRP(true); }
  else if(currentIntroTask === 'THALPHA') { startTHALPHA(true); }
  else { selectTask(currentIntroTask, true); }
}

function skipToMain() {
  cognosCountdown(_doSkipToMain);
}
function _doSkipToMain(){
  if(currentIntroTask === 'POSNER') { startPosner(false); }
  else if(currentIntroTask === 'RECALL') { startFreeRecall(false); }
  else if(currentIntroTask === 'N400') { startN400(false); }
  else if(currentIntroTask==='PMN'){ startPMN(false); }
  else if(currentIntroTask === 'FLANKER') { startFlanker(false); }
  else if(currentIntroTask === 'STOP') { startStop(false); }
  else if(currentIntroTask === 'MMN') { startMMN(false); }
  else if(currentIntroTask==='ORN'){ startORN(false); }
  else if(currentIntroTask === 'P600') { startP600(false); }
  else if(currentIntroTask === 'ERN') { startERN(false); }
  else if(currentIntroTask==='PE'){ startPE(false); }
  else if(currentIntroTask === 'STROOP') { startStroop(false); }
  else if(currentIntroTask === 'DST') { startDST(false); }
  else if(currentIntroTask === 'CNV') { startCNV(false); }
  else if(currentIntroTask === 'TMT') { selectTask('TMT', false); }
  else if(currentIntroTask === 'DSC') { startDSC(false); }
  else if(currentIntroTask === 'PNT') { selectTask('PNT', false); }
  else if(currentIntroTask === 'MRT') { selectTask('MRT', false); }
  else if(currentIntroTask === 'FTT') { startFTT(false); }
  else if(currentIntroTask === 'N200') { startN200(false); }
  else if(currentIntroTask==='MFN'){ startMFN(false); }
  else if(currentIntroTask === 'N170') { startN170(false); }
  else if(currentIntroTask==='VPP'){ startVPP(false); }
  else if(currentIntroTask === 'N2PC') { startN2PC(false); }
  else if(currentIntroTask==='N2B'){ startN2B(false); }
  else if(currentIntroTask==='PD'){ startPD(false); }
  else if(currentIntroTask === 'N300') { startN300(false); }
  else if(currentIntroTask === 'ELAN') { startELAN(false); }
  else if(currentIntroTask==='LAN'){ startLAN(false); }
  else if(currentIntroTask==='CPS'){ startCPS(false); }
  else if(currentIntroTask === 'BP')   { startBP(false); }
  else if(currentIntroTask === 'MMNSP'){ startMMNS(false); }
  else if(currentIntroTask === 'SSVEP'){ startSSVEP(false); }
  else if(currentIntroTask==='ERAN'){ startERAN(false); }
  else if(currentIntroTask === 'P50')  { startP50(false); }
  else if(currentIntroTask === 'N100') { startN100(false); }
  else if(currentIntroTask==='LDAEP'){ startLDAEP(false); }
  else if(currentIntroTask==='C1'){ startC1(false); }
  else if(currentIntroTask === 'P100') { startP100(false); }
  else if(currentIntroTask === 'SCP')  { startSCP(false); }
  else if(currentIntroTask==='CDA'){ startCDA(false); }
  else if(currentIntroTask === 'P3A')  { startP3A(false); }
  else if(currentIntroTask === 'ASSR') { startASSR(false); }
  else if(currentIntroTask === 'CPT')  { startCPT(false); }
  else if(currentIntroTask === 'EMOTSTROOP') { startEmotStroop(false); }
  else if(currentIntroTask === 'TASKSWITCH') { startTaskSwitch(false); }
  else if(currentIntroTask === 'DUALTASK')   { startDualTask(false); }
  else if(currentIntroTask==='SART'){ startSART(false); }
  else if(currentIntroTask==='UFOV'){ startUFOV(false); }
  else if(currentIntroTask === 'ATTBLINK')   { startAttBlink(false); }
  else if(currentIntroTask === 'SUBITIZE')   { startSubitize(false); }
  else if(currentIntroTask === 'LEXDEC')     { startLexDec(false); }
  else if(currentIntroTask === 'SEMFLUENCY') { startSemFluency(false); }
  else if(currentIntroTask === 'PROSMEM')    { startProsMem(false); }
  else if(currentIntroTask === 'SPATWM')     { startSpatWM(false); }
  else if(currentIntroTask === 'MOCA')       { startMoCA(false); }
  else if(currentIntroTask==='PHQ9'){ startPHQ9(false); }
  else if(currentIntroTask==='GAD7'){ startGAD7(false); }
  else if(currentIntroTask==='PCL5'){ startPCL5(false); }
  else if(currentIntroTask==='AUDIT'){ startAUDIT(false); }
  else if(currentIntroTask==='ASRS'){ startASRS(false); }
  else if(currentIntroTask==='HACHINSKI'){ startHACHINSKI(false); }
  else if(currentIntroTask==='KATZ'){ startKATZ(false); }
  else if(currentIntroTask==='LAWTON'){ startLAWTON(false); }
  else if(currentIntroTask === 'REWP')       { startREWP(false); }
  else if(currentIntroTask==='LPC'){ startLPC(false); }
  else if(currentIntroTask==='FRN'){ startFRN(false); }
  else if(currentIntroTask === 'ABR') { startABR(false); }
  else if(currentIntroTask==='N1P2'){ startN1P2(false); }
  else if(currentIntroTask==='RON'){ startRON(false); }
  else if(currentIntroTask === 'P1N1') { startP1N1(false); }
  else if(currentIntroTask === 'CNVW') { startCNVW(false); }
  else if(currentIntroTask === 'DIGCAN') { startDigCan(false); }
  else if(currentIntroTask==='SYMSEARCH'){ startSymSearch(false); }
  else if(currentIntroTask==='PHONFLUE'){ startPhonFlue(false); }
  else if(currentIntroTask==='JLO'){ startJLO(false); }
  else if(currentIntroTask==='PASAT'){ startPASAT(false); }
  else if(currentIntroTask==='RAVLT'){ startRAVLT(false); }
  else if(currentIntroTask==='CVLT'){ startCVLT(false); }
  else if(currentIntroTask==='PAL'){ startPAL(false); }
  else if(currentIntroTask==='SRCMEM'){ startSrcMem(false); }
  else if(currentIntroTask==='IGT'){ startIGT(false); }
  else if(currentIntroTask==='PRL'){ startPRL(false); }
  else if(currentIntroTask==='DD'){ startDD(false); }
  else if(currentIntroTask==='SRTT'){ startSRTT(false); }
  else if(currentIntroTask==='BART'){ startBART(false); }
  else if(currentIntroTask==='OSPAN'){ startOSPAN(false); }
  else if(currentIntroTask==='TBIS'){ startTBIS(false); }
  else if(currentIntroTask==='TOL'){ startTOL(false); }
  else if(currentIntroTask==='MATRIX'){ startMatrix(false); }
  else if(currentIntroTask==='META'){ startMeta(false); }
  else if(currentIntroTask==='RMET'){ startRMET(false); }
  else if(currentIntroTask==='FER'){ startFER(false); }
  else if(currentIntroTask==='SNELLEN'){ startSnellen(false); }
  else if(currentIntroTask==='ISHIHARA'){ startIshihara(false); }
  else if(currentIntroTask==='SEASHORE'){ startSeashore(false); }
  else if(currentIntroTask==='AUDIOM'){ startAudiom(false); }
  else if(currentIntroTask==='GABOR'){ startGabor(false); }
  else if(currentIntroTask==='CDT'){ startCDT(false); }
  else if(currentIntroTask==='STAR'){ startStar(false); }
  else if(currentIntroTask==='SPR'){ startSPR(false); }
  else if(currentIntroTask==='SPR-A'){ startSPRA(false); }
  else if(currentIntroTask==='MTS'){ startMTS(false); }
  else if(currentIntroTask === 'WCST') { startWCST(false); }
  else if(currentIntroTask === 'VRT') { startVRT(false); }
  else if(currentIntroTask==='TOJ'){ startTOJ(false); }
  else if(currentIntroTask === 'CSR') { startCSR(false); }
  else if(currentIntroTask === 'P300') { startP300(false); }
  else if(currentIntroTask === 'STB') { startSTB(false); }
  else if(currentIntroTask === 'LRP')  { startLRP(false); }
  else if(currentIntroTask === 'THALPHA') { startTHALPHA(false); }
  else { selectTask(currentIntroTask, false); }
}

function startMain() { cognosCountdown(_doStartMain); }
function _doStartMain() {
  if(currentIntroTask === 'POSNER') { startPosner(false); }
  else if(currentIntroTask === 'RECALL') { startFreeRecall(false); }
  else if(currentIntroTask === 'WCST') { startWCST(false); }
  else if(currentIntroTask === 'VRT') { startVRT(false); }
  else if(currentIntroTask==='TOJ'){ startTOJ(false); }
  else if(currentIntroTask === 'CSR') { startCSR(false); }
  else if(currentIntroTask === 'P300') { startP300(false); }
  else if(currentIntroTask === 'STB') { startSTB(false); }
  else if(currentIntroTask === 'N400') { startN400(false); }
  else if(currentIntroTask==='PMN'){ startPMN(false); }
  else if(currentIntroTask === 'FLANKER') { startFlanker(false); }
  else if(currentIntroTask === 'STOP') { startStop(false); }
  else if(currentIntroTask === 'MMN') { startMMN(false); }
  else if(currentIntroTask==='ORN'){ startORN(false); }
  else if(currentIntroTask === 'P600') { startP600(false); }
  else if(currentIntroTask === 'ERN') { startERN(false); }
  else if(currentIntroTask==='PE'){ startPE(false); }
  else if(currentIntroTask === 'STROOP') { startStroop(false); }
  else if(currentIntroTask === 'DST') { startDST(false); }
  else if(currentIntroTask === 'CNV') { startCNV(false); }
  else if(currentIntroTask === 'TMT') { selectTask('TMT', false); }
  else if(currentIntroTask === 'DSC') { startDSC(false); }
  else if(currentIntroTask === 'PNT') { selectTask('PNT', false); }
  else if(currentIntroTask === 'MRT') { selectTask('MRT', false); }
  else if(currentIntroTask === 'FTT') { startFTT(false); }
  else if(currentIntroTask === 'N200') { startN200(false); }
  else if(currentIntroTask==='MFN'){ startMFN(false); }
  else if(currentIntroTask === 'N170') { startN170(false); }
  else if(currentIntroTask==='VPP'){ startVPP(false); }
  else if(currentIntroTask === 'N2PC') { startN2PC(false); }
  else if(currentIntroTask==='N2B'){ startN2B(false); }
  else if(currentIntroTask==='PD'){ startPD(false); }
  else if(currentIntroTask === 'N300') { startN300(false); }
  else if(currentIntroTask === 'ELAN') { startELAN(false); }
  else if(currentIntroTask==='LAN'){ startLAN(false); }
  else if(currentIntroTask==='CPS'){ startCPS(false); }
  else if(currentIntroTask === 'BP')   { startBP(false); }
  else if(currentIntroTask === 'MMNSP'){ startMMNS(false); }
  else if(currentIntroTask === 'SSVEP'){ startSSVEP(false); }
  else if(currentIntroTask==='ERAN'){ startERAN(false); }
  else if(currentIntroTask === 'P50')  { startP50(false); }
  else if(currentIntroTask === 'N100') { startN100(false); }
  else if(currentIntroTask==='LDAEP'){ startLDAEP(false); }
  else if(currentIntroTask==='C1'){ startC1(false); }
  else if(currentIntroTask === 'P100') { startP100(false); }
  else if(currentIntroTask === 'SCP')  { startSCP(false); }
  else if(currentIntroTask==='CDA'){ startCDA(false); }
  else if(currentIntroTask === 'P3A')  { startP3A(false); }
  else if(currentIntroTask === 'ASSR') { startASSR(false); }
  else if(currentIntroTask === 'CPT')  { startCPT(false); }
  else if(currentIntroTask === 'EMOTSTROOP') { startEmotStroop(false); }
  else if(currentIntroTask === 'TASKSWITCH') { startTaskSwitch(false); }
  else if(currentIntroTask === 'DUALTASK')   { startDualTask(false); }
  else if(currentIntroTask==='SART'){ startSART(false); }
  else if(currentIntroTask==='UFOV'){ startUFOV(false); }
  else if(currentIntroTask === 'ATTBLINK')   { startAttBlink(false); }
  else if(currentIntroTask === 'SUBITIZE')   { startSubitize(false); }
  else if(currentIntroTask === 'LEXDEC')     { startLexDec(false); }
  else if(currentIntroTask === 'SEMFLUENCY') { startSemFluency(false); }
  else if(currentIntroTask === 'PROSMEM')    { startProsMem(false); }
  else if(currentIntroTask === 'SPATWM')     { startSpatWM(false); }
  else if(currentIntroTask === 'MOCA')       { startMoCA(false); }
  else if(currentIntroTask==='PHQ9'){ startPHQ9(false); }
  else if(currentIntroTask==='GAD7'){ startGAD7(false); }
  else if(currentIntroTask==='PCL5'){ startPCL5(false); }
  else if(currentIntroTask==='AUDIT'){ startAUDIT(false); }
  else if(currentIntroTask==='ASRS'){ startASRS(false); }
  else if(currentIntroTask==='HACHINSKI'){ startHACHINSKI(false); }
  else if(currentIntroTask==='KATZ'){ startKATZ(false); }
  else if(currentIntroTask==='LAWTON'){ startLAWTON(false); }
  else if(currentIntroTask === 'REWP')       { startREWP(false); }
  else if(currentIntroTask==='LPC'){ startLPC(false); }
  else if(currentIntroTask==='FRN'){ startFRN(false); }
  else if(currentIntroTask === 'ABR') { startABR(false); }
  else if(currentIntroTask==='N1P2'){ startN1P2(false); }
  else if(currentIntroTask==='RON'){ startRON(false); }
  else if(currentIntroTask === 'P1N1') { startP1N1(false); }
  else if(currentIntroTask === 'LRP')  { startLRP(false); }
  else if(currentIntroTask === 'THALPHA') { startTHALPHA(false); }
  else if(currentIntroTask === 'CNVW') { startCNVW(false); }
  else if(currentIntroTask === 'DIGCAN') { startDigCan(false); }
  else if(currentIntroTask==='SYMSEARCH'){ startSymSearch(false); }
  else if(currentIntroTask==='PHONFLUE'){ startPhonFlue(false); }
  else if(currentIntroTask==='JLO'){ startJLO(false); }
  else if(currentIntroTask==='PASAT'){ startPASAT(false); }
  else if(currentIntroTask==='RAVLT'){ startRAVLT(false); }
  else if(currentIntroTask==='CVLT'){ startCVLT(false); }
  else if(currentIntroTask==='PAL'){ startPAL(false); }
  else if(currentIntroTask==='SRCMEM'){ startSrcMem(false); }
  else if(currentIntroTask==='IGT'){ startIGT(false); }
  else if(currentIntroTask==='PRL'){ startPRL(false); }
  else if(currentIntroTask==='DD'){ startDD(false); }
  else if(currentIntroTask==='SRTT'){ startSRTT(false); }
  else if(currentIntroTask==='BART'){ startBART(false); }
  else if(currentIntroTask==='OSPAN'){ startOSPAN(false); }
  else if(currentIntroTask==='TBIS'){ startTBIS(false); }
  else if(currentIntroTask==='TOL'){ startTOL(false); }
  else if(currentIntroTask==='MATRIX'){ startMatrix(false); }
  else if(currentIntroTask==='META'){ startMeta(false); }
  else if(currentIntroTask==='RMET'){ startRMET(false); }
  else if(currentIntroTask==='FER'){ startFER(false); }
  else if(currentIntroTask==='SNELLEN'){ startSnellen(false); }
  else if(currentIntroTask==='ISHIHARA'){ startIshihara(false); }
  else if(currentIntroTask==='SEASHORE'){ startSeashore(false); }
  else if(currentIntroTask==='AUDIOM'){ startAudiom(false); }
  else if(currentIntroTask==='GABOR'){ startGabor(false); }
  else if(currentIntroTask==='CDT'){ startCDT(false); }
  else if(currentIntroTask==='STAR'){ startStar(false); }
  else if(currentIntroTask==='SPR'){ startSPR(false); }
  else if(currentIntroTask==='SPR-A'){ startSPRA(false); }
  else if(currentIntroTask==='MTS'){ startMTS(false); }
  else { selectTask(currentIntroTask, false); }
}

// ═══════════════════════════════════════════════════════════
// INPUT MODE
// ═══════════════════════════════════════════════════════════
let inputMode = 'keyboard';
function setInputMode(mode){
  inputMode=mode;
  try{ window.inputMode=mode; }catch(e){}   // expose for the test harness
  ['keyboard','mouse','voice'].forEach(m=>{ $('im-'+m).classList.toggle('active',m===mode); });
  $('mouseIndicator').style.display = mode==='mouse'?'flex':'none';
  updateKeyHint();
  // Do NOT auto-request the microphone here — an unprompted permission dialog
  // interrupts the task. Voice mode can be selected; the mic is enabled
  // explicitly via the mic button (#micBtn) only when the user chooses.
  if(mode!=='voice'&&Speech.micOn) stopMic();
}
function updateKeyHint(){
  const hints={
    keyboard:'F = Yes/Go  ·  J = No/NoGo  ·  Space = Detect/Oddball  ·  Enter = submit word',
    mouse:'LEFT CLICK = Yes/Go  ·  RIGHT CLICK = No/NoGo  ·  any click = detect',
    voice:'say: go · yes · no · match · same · different'
  };
  const h=hints[inputMode]||'';
  [$('keyHint'), $('posKeyHint')].forEach(el=>{ if(el) el.textContent=h; });
}
updateKeyHint();

function flashMBI(side){ const el=$('mbi-'+side); if(!el)return; el.classList.add(side+'-active'); setTimeout(()=>el.classList.remove(side+'-active'),180); }
function spawnRipple(e,cls){ const r=document.createElement('div'); r.className='ripple '+cls; r.style.left=e.clientX+'px'; r.style.top=e.clientY+'px'; document.body.appendChild(r); r.addEventListener('animationend',()=>r.remove()); }

document.addEventListener('mousedown',e=>{
  if(e.target.closest('.sidebar')||e.target.closest('.task-select-grid')||e.target.closest('.posner-settings')||e.target.closest('.controls')||e.target.closest('.trials-input-row')||e.target.closest('#introScreen')||e.target.closest('#practiceComplete')) return;
  if(inputMode!=='mouse') return;
  const isLeft=e.button===0, isRight=e.button===2;
  if(!isLeft&&!isRight) return;
  spawnRipple(e, isLeft?'left-click':'right-click');
  flashMBI(isLeft?'left':'right');
  if(P.active&&P.waiting){ posnerDetect(); return; }
  if(S.waiting){
    if(S.task==='SPATIAL'){ if(isLeft&&e.target.closest('.stim-grid')) return; if(isLeft){ evaluate(-1,false); return; } }
    if(isLeft) respButton(true);
    if(isRight) respButton(false);
  }
});
document.addEventListener('contextmenu',e=>{ if(inputMode==='mouse'&&(S.waiting||P.waiting)) e.preventDefault(); });

// ═══════════════════════════════════════════════════════════
// SPEECH
// ═══════════════════════════════════════════════════════════
const Speech={recognition:null,synthesis:window.speechSynthesis,micOn:false,ttsOn:false,volAnimId:null,audioCtx:null,analyser:null,micStream:null,volBars:[0,1,2,3,4].map(i=>document.getElementById('vb'+i))};
try{ window.Speech=Speech; window.inputMode=inputMode; }catch(e){}  // harness exposure
function speak(text){
  if(!Speech.ttsOn||!Speech.synthesis) return;
  Speech.synthesis.cancel();
  const u=new SpeechSynthesisUtterance(text); u.rate=1.1; u.pitch=1.0; u.volume=0.9;
  const voices=Speech.synthesis.getVoices();
  const isUK = window._srIsUK;
  const pref = isUK
    ? voices.find(v=>/en.*GB/i.test(v.lang)) || voices.find(v=>/en/i.test(v.lang))
    : voices.find(v=>/en.*US/i.test(v.lang)&&/female|zira|samantha|karen/i.test(v.name)) || voices.find(v=>/en/i.test(v.lang));
  if(pref) u.voice=pref;
  u.onstart=()=>{ $('micBtn').classList.add('speaking'); $('speechStatus').textContent='speaking'; $('speechStatus').className='speech-status speaking'; };
  u.onend=u.onerror=()=>{ $('micBtn').classList.remove('speaking'); if(Speech.micOn){$('speechStatus').textContent='listening';$('speechStatus').className='speech-status on';}else{$('speechStatus').textContent='off';$('speechStatus').className='speech-status';} };
  Speech.synthesis.speak(u);
}
const CMD_YES=/\b(go|yes|match|same|hit|respond|left|right)\b/;
const CMD_NO=/\b(no.?go|nogo|no|different|pass|withhold)\b/;
// ── spoken word segmentation for free recall ──────────────────────────
// Split transcript into individual tokens, try each as a recall word.
// Skips short noise tokens and known filler words.
const FR_FILLER = new Set(['the','a','an','um','uh','er','ah','and','or','i','my','said','word','is','it','in','on','at','to','of','so','like','think','was','that','this']);

function handleFRSpeech(text) {
  if(FR.phase !== 'recall') return false;
  // split on whitespace and punctuation
  const tokens = text.toLowerCase().replace(/[^a-z\s]/g,' ').split(/\s+/).filter(t => t.length >= 3 && !FR_FILLER.has(t));
  let anySubmitted = false;
  for(const tok of tokens){
    // don't re-submit already-matched words
    const alreadyMatched = FR.recalled.filter(r=>r.isHit).map(r=>r.matchedWord);
    const matched = frMatchWord(tok, FR.studyList);
    if(matched && alreadyMatched.includes(matched)) continue;
    // submit if it matches a study word OR is a plausible new word (let fuzzy scoring decide)
    frSubmitRecallWord(tok);
    anySubmitted = true;
  }
  return anySubmitted;
}

function handleFRDistractorSpeech(text) {
  if(FR.phase !== 'distractor') return false;
  // look for a number in the transcript
  const nums = text.match(/\b(\d+|zero|one|two|three|four|five|six|seven|eight|nine|ten|eleven|twelve|thirteen|fourteen|fifteen|sixteen|seventeen|eighteen|nineteen|twenty|thirty|forty|fifty|sixty|seventy|eighty|ninety|hundred)\b/gi);
  if(!nums) return false;
  const wordToNum = {zero:0,one:1,two:2,three:3,four:4,five:5,six:6,seven:7,eight:8,nine:9,ten:10,eleven:11,twelve:12,thirteen:13,fourteen:14,fifteen:15,sixteen:16,seventeen:17,eighteen:18,nineteen:19,twenty:20,thirty:30,forty:40,fifty:50,sixty:60,seventy:70,eighty:80,ninety:90,hundred:100};
  let val = null;
  for(const n of nums){
    const parsed = parseInt(n) || wordToNum[n.toLowerCase()];
    if(!isNaN(parsed) && parsed !== undefined){ val = parsed; break; }
  }
  if(val === null) return false;
  $('frDistractorInput').value = val;
  checkDistractor();
  return true;
}

function handleVoiceCommand(text){
  // Free recall phases intercept first
  if(FR.phase === 'recall'){ handleFRSpeech(text); return; }
  if(FR.phase === 'distractor'){ handleFRDistractorSpeech(text); return; }
  if(P.active&&P.waiting){ posnerDetect(); return; }
  // N400 voice response: "fits"/"yes" → FIT,  "odd"/"no" → ODD
  if(typeof FTT!=='undefined'&&FTT.log&&FTT.log.length){
    parts.push('# TASK: FINGER TAPPING');parts.push('subtest,trial,taps,duration_s,mean_iti_ms,sd_iti_ms');
    FTT.log.forEach(r=>parts.push([r.subtest,r.trial,r.taps,r.duration,r.meanITI!=null?r.meanITI.toFixed(1):'',r.sdITI!=null?r.sdITI.toFixed(1):''].join(',')));parts.push('');
  }
  if(typeof CNV!=='undefined'&&CNV.log&&CNV.log.length){
    parts.push('# TASK: CNV');parts.push('trial,type,foreperiod_ms,response,correct,rt_ms,fa');
    CNV.log.forEach(r=>parts.push([r.trial,r.type,r.foreperiod,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):'',r.fa?1:0].join(',')));parts.push('');
  }
  if(typeof DST!=='undefined'&&DST.log&&DST.log.length){
    parts.push('# TASK: DIGIT SPAN');parts.push('trial,subtest,span_length,sequence,target,response,correct');
    DST.log.forEach(r=>parts.push([r.trial,r.subtest,r.spanLen,r.sequence,r.target,r.response,r.correct?1:0].join(',')));parts.push('');
  }
  if(typeof STROOP!=='undefined'&&STROOP.active&&STROOP.waiting){
    if(/\b(red)\b/.test(text)){stroopRespond('red');return;}
    if(/\b(green)\b/.test(text)){stroopRespond('green');return;}
    if(/\b(blue)\b/.test(text)){stroopRespond('blue');return;}
    if(/\b(yellow)\b/.test(text)){stroopRespond('yellow');return;}
    return;
  }
  if(N400.active&&N400.waiting){
    if(/\b(fit|fits|yes|correct|right|congruent)\b/.test(text)){ n400Respond('FIT'); return; }
    if(/\b(odd|no|wrong|incongruent|weird|strange|doesn)\b/.test(text)){ n400Respond('ODD'); return; }
    return;
  }
  if(!S.waiting) return;
  if(CMD_YES.test(text)){ respButton(true); return; }
  if(CMD_NO.test(text)) respButton(false);
}
function initRecognition(){
  const SpeechRec=window.SpeechRecognition||window.webkitSpeechRecognition;
  if(!SpeechRec){ setTranscript('Not supported',false); return null; }
  const r=new SpeechRec(); r.lang = window._srLocale || 'en-US'; r.continuous=true; r.interimResults=true; r.maxAlternatives=3;
  // track processed final transcripts to avoid double-submitting
  const seenFinals = new Set();
  r.onresult=(e)=>{
    let interim='',final='';
    for(let i=e.resultIndex;i<e.results.length;i++){
      const t=e.results[i][0].transcript.trim().toLowerCase();
      if(e.results[i].isFinal){
        if(!seenFinals.has(t)){ seenFinals.add(t); final+=' '+t; }
        // trim set to avoid unbounded growth
        if(seenFinals.size>40){ const first=seenFinals.values().next().value; seenFinals.delete(first); }
      } else { interim+=t; }
    }
    if(interim) setTranscript(interim+'…',false);
    if(final.trim()){
      setTranscript(final.trim(),true);
      handleVoiceCommand(final.trim());
    }
  };
  r.onerror=(e)=>{ if(e.error!=='no-speech') setTranscript('err:'+e.error,false); };
  r.onend=()=>{ if(Speech.micOn) try{ r.start(); }catch(ex){} };
  return r;
}
function setTranscript(text,heard){ const b=$('transcriptBox'); b.textContent=text; b.className='transcript-box'+(heard?' heard':''); }
async function toggleMic(){
  if(!Speech.micOn){
    try{ const stream=await navigator.mediaDevices.getUserMedia({audio:true}); Speech.micStream=stream; startVolMeter(stream); }
    catch(e){ setTranscript('Mic denied:'+e.message,false); return; }
    if(!Speech.recognition) Speech.recognition=initRecognition();
    if(!Speech.recognition) return;
    try{ Speech.recognition.start(); }catch(e){}
    Speech.micOn=true; $('micBtn').classList.add('listening'); $('speechStatus').textContent='listening'; $('speechStatus').className='speech-status on';
  } else stopMic();
}
function stopMic(){
  Speech.micOn=false;
  if(Speech.recognition) try{ Speech.recognition.stop(); }catch(e){}
  if(Speech.micStream){ Speech.micStream.getTracks().forEach(t=>t.stop()); Speech.micStream=null; }
  if(Speech.volAnimId){ cancelAnimationFrame(Speech.volAnimId); Speech.volAnimId=null; }
  if(Speech.audioCtx){ Speech.audioCtx.close(); Speech.audioCtx=null; Speech.analyser=null; }
  $('micBtn').classList.remove('listening','speaking');
  $('speechStatus').textContent='off'; $('speechStatus').className='speech-status';
  Speech.volBars.forEach(b=>{ b.style.height='4px'; b.style.background='#1a2f44'; });
  setTranscript('—',false);
}
function startVolMeter(stream){ try{ Speech.audioCtx=new AudioContext(); Speech.analyser=Speech.audioCtx.createAnalyser(); Speech.analyser.fftSize=32; const src=Speech.audioCtx.createMediaStreamSource(stream); src.connect(Speech.analyser); animVol(); }catch(e){} }
function animVol(){ if(!Speech.analyser) return; const data=new Uint8Array(Speech.analyser.frequencyBinCount); Speech.analyser.getByteFrequencyData(data); const avg=data.reduce((a,b)=>a+b,0)/data.length; Speech.volBars.forEach((b,i)=>{ const thresh=(i+1)*10; const h=avg>thresh?Math.min(14,3+(avg-thresh)*0.3):3; b.style.height=h.toFixed(0)+'px'; b.style.background=avg>40?'var(--ok)':'#2a4060'; }); Speech.volAnimId=requestAnimationFrame(animVol); }
window.speechSynthesis&&window.speechSynthesis.getVoices();
window.speechSynthesis&&window.speechSynthesis.addEventListener('voiceschanged',()=>window.speechSynthesis.getVoices());

// ═══════════════════════════════════════════════════════════
// STATE
// ═══════════════════════════════════════════════════════════

// ═══════════════════════════════════════════════════════════
// ADAPTIVE ITI ENGINE  (from SR_COGNOS_ADAPTIVE_FINAL)
// ═══════════════════════════════════════════════════════════
const ADAPT = {
  enabled: true,
  targetRT: 350,         // ms — aim to keep average here
  window: 5,             // rolling window size
  gain: 0.8,             // how aggressively to adjust
  minITI: 300,
  maxITI: 1200,
  baseITI: 500,
  jitter: 150,           // ± random jitter ms
  history: {             // per-condition rolling RT histories
    GO:     [],
    NOGO:   [],
    MATCH:  [],
    NOMATCH:[],
    SPATIAL:[],
    DEFAULT:[]
  }
};

function adaptClamp(v){ return Math.max(ADAPT.minITI, Math.min(ADAPT.maxITI, v)); }

function adaptPushRT(condition, rt) {
  const key = ADAPT.history[condition] !== undefined ? condition : 'DEFAULT';
  ADAPT.history[key].push(rt);
  if(ADAPT.history[key].length > 20) ADAPT.history[key].shift();
}

function adaptGetITI(condition) {
  if(!ADAPT.enabled) return ADAPT.baseITI;
  const key = ADAPT.history[condition] !== undefined ? condition : 'DEFAULT';
  const hist = ADAPT.history[key];
  const jitter = (Math.random() * 2 - 1) * ADAPT.jitter;
  if(!hist.length) return adaptClamp(ADAPT.baseITI + jitter);
  const recent = hist.slice(-ADAPT.window);
  const avg = recent.reduce((a,b)=>a+b,0) / recent.length;
  // For GO / SPATIAL: if responding fast, increase ITI to maintain challenge
  // For NOGO: use FA rate to modulate — longer ITI = more prepotency build-up
  if(condition === 'NOGO') {
    const iti = 700 + avg * 0.3 + jitter;
    return adaptClamp(iti);
  }
  const iti = ADAPT.baseITI + (avg - ADAPT.targetRT) * ADAPT.gain + jitter;
  return adaptClamp(iti);
}

// Map current trial condition to ADAPT key
function adaptConditionKey() {
  if(!S.task) return 'DEFAULT';
  if(S.task === 'GNG') return S.stimType || 'GO';
  if(S.task === 'NBACK') return S.nbackTarget ? 'MATCH' : 'NOMATCH';
  if(S.task === 'SPATIAL') return 'SPATIAL';
  return 'DEFAULT';
}

// ── RT CHART ────────────────────────────────────────────────
const RTChart = {
  rts: [],
  conditions: [],  // parallel array: 'correct'|'error'|'timeout'
  maxPoints: 40
};

function rtChartPush(rt, correct) {
  RTChart.rts.push(rt);
  RTChart.conditions.push(correct ? 'correct' : 'error');
  if(RTChart.rts.length > RTChart.maxPoints) {
    RTChart.rts.shift(); RTChart.conditions.shift();
  }
  rtChartDraw();
  // update header stats
  const valid = RTChart.rts.filter((_,i)=>RTChart.conditions[i]==='correct');
  const avg = valid.length ? (valid.reduce((a,b)=>a+b,0)/valid.length).toFixed(0) : '—';
  const last = rt.toFixed(0);
  const avgEl = $('rtChartAvg'); if(avgEl) avgEl.textContent = avg;
  const lastEl = $('rtChartLast'); if(lastEl) lastEl.textContent = last;
}

function rtChartDraw() {
  const canvas = $('rtChartCanvas');
  if(!canvas) return;
  const ctx = canvas.getContext('2d');
  const W = canvas.width, H = canvas.height;
  ctx.clearRect(0, 0, W, H);

  // background grid lines
  ctx.strokeStyle = '#0e1e2c';
  ctx.lineWidth = 1;
  [200,400,600,800].forEach(ms => {
    const y = H - (ms / 1200 * H);
    ctx.beginPath(); ctx.moveTo(0,y); ctx.lineTo(W,y); ctx.stroke();
    ctx.fillStyle = '#1a2f44';
    ctx.font = '8px monospace';
    ctx.fillText(ms+'ms', 2, y-2);
  });

  // target RT line
  const targetY = H - (ADAPT.targetRT / 1200 * H);
  ctx.strokeStyle = '#1a3028';
  ctx.setLineDash([3,3]);
  ctx.beginPath(); ctx.moveTo(0,targetY); ctx.lineTo(W,targetY); ctx.stroke();
  ctx.setLineDash([]);

  if(!RTChart.rts.length) return;

  const pts = RTChart.rts.length;
  const xStep = W / Math.max(pts - 1, 1);

  // draw line
  ctx.lineWidth = 1.5;
  ctx.beginPath();
  RTChart.rts.forEach((rt, i) => {
    const x = i * xStep;
    const y = H - Math.min(rt, 1200) / 1200 * H;
    i === 0 ? ctx.moveTo(x, y) : ctx.lineTo(x, y);
  });
  ctx.strokeStyle = 'rgba(78,201,148,0.4)';
  ctx.stroke();

  // draw dots
  RTChart.rts.forEach((rt, i) => {
    const x = i * xStep;
    const y = H - Math.min(rt, 1200) / 1200 * H;
    const col = RTChart.conditions[i] === 'correct' ? 'var(--ok)' : 'var(--err)';
    ctx.beginPath();
    ctx.arc(x, y, 2.5, 0, Math.PI*2);
    ctx.fillStyle = col;
    ctx.fill();
  });

  // moving average (window=5) overlay
  if(RTChart.rts.length >= 3) {
    const win = 5;
    ctx.lineWidth = 2;
    ctx.strokeStyle = 'rgba(200,168,75,0.7)';
    ctx.beginPath();
    RTChart.rts.forEach((_, i) => {
      const slice = RTChart.rts.slice(Math.max(0,i-win+1), i+1);
      const mavg = slice.reduce((a,b)=>a+b,0)/slice.length;
      const x = i * xStep;
      const y = H - Math.min(mavg,1200)/1200*H;
      i===0 ? ctx.moveTo(x,y) : ctx.lineTo(x,y);
    });
    ctx.stroke();
  }
}

function rtChartReset() {
  RTChart.rts = []; RTChart.conditions = [];
  const canvas = $('rtChartCanvas');
  if(canvas){ const ctx=canvas.getContext('2d'); ctx.clearRect(0,0,canvas.width,canvas.height); }
  const avgEl=$('rtChartAvg'); if(avgEl) avgEl.textContent='—';
  const lastEl=$('rtChartLast'); if(lastEl) lastEl.textContent='—';
}

function adaptUpdateBadge() {
  const el = $('adaptiveBadge');
  if(!el) return;
  el.textContent = ADAPT.enabled ? 'ADAPTIVE ITI ✓' : 'ADAPTIVE ITI OFF';
  el.className = 'adaptive-badge' + (ADAPT.enabled ? ' active' : '');
}

let S={task:null,trial:0,maxTrials:20,isPractice:false,practiceTrials:5,waiting:false,stimType:null,stimOn:0,log:[],practiceLog:[],nbackHistory:[],nbackN:1,nbackTarget:null,lastSpatialIdx:null};
function $(id){ return document.getElementById(id); }

function hideAll(){
  if(window._stopIntroAnim) window._stopIntroAnim();
  ['home','participantScreen','introScreen','taskscreen','posnerScreen','practiceComplete','frScreen','micValidScreen','wcstScreen','statsScreen','vrtScreen','tojScreen','csrScreen','p300Screen','editorScreen','stbScreen','n400Screen','pmnScreen','flankerScreen','stopScreen','mmnScreen','ornScreen','p600Screen','ernScreen','peScreen','stroopScreen','dstScreen','cnvScreen','fttScreen','scr-media','n200Screen','mfnScreen','n170Screen','vppScreen','n2pcScreen','n2bScreen','pdScreen','n300Screen','elanScreen','lanScreen','cpsScreen','bpScreen','mmnspeechScreen','ssvepScreen','eranScreen','p50Screen','n100Screen','ldaepScreen','c1Screen','p100Screen','scpScreen','cdaScreen','p3aScreen','assrScreen','cptScreen','emotstroopScreen','taskswitchScreen','dualtaskScreen','sartScreen','ufovScreen','attblinkScreen','subitizeScreen','lexdecScreen','semfluencyScreen','prosmemScreen','spatwmScreen','mocaScreen','phq9Screen','gad7Screen','pcl5Screen','auditScreen','asrsScreen','digcanScreen','abrScreen','n1p2Screen','ronScreen','p1n1Screen','cnvwScreen','thalphaScreen','lrpScreen','symsearchScreen','phonflueScreen','jloScreen','pasatScreen','ravltScreen','cvltScreen','palScreen','srcmemScreen','igtScreen','prlScreen','ddScreen','srttScreen','bartScreen','ospanScreen','tbisScreen','tolScreen','matrixScreen','metaScreen','rmetScreen','ferScreen','rewpScreen','lpcScreen','frnScreen','snellenScreen','ishiharaScreen','seashoreScreen','audiomScreen','gaborScreen','cdtScreen','starScreen','hachinskiScreen','katzScreen','lawtonScreen','sprScreen','spraScreen','mtsScreen','bntScreen'].forEach(id=>{ const el=$(id); if(el) el.style.display='none'; });
}

function updateSidebar(){
  // Auto-record results when called after task completion, then refresh readouts.
  cognosAutoRecord();
  updateSidebarReadouts();
}
function updateSidebarReadouts(){
  // d′/β are SDT-only; hide by default, the dedicated-engine path re-shows them.
  var _dR=$('si-dprime-row'), _bR=$('si-beta-row');
  if(_dR) _dR.style.display='none'; if(_bR) _bR.style.display='none';
  var _cA=$('si-condA-row'), _cB=$('si-condB-row');
  if(_cA) _cA.style.display='none'; if(_cB) _cB.style.display='none';
  if(P.active){
    $('si-task').textContent='POSNER'+(P.isPractice?' (PRAC)':'');
    $('si-trial').textContent=`${P.trial}/${P.maxTrials}`;
    const rts=P.log.filter(r=>r.rt!==null);
    $('si-acc').textContent='—'; $('si-rt').textContent=rts.length?(rts.reduce((a,b)=>a+b.rt,0)/rts.length).toFixed(0)+' ms':'—';
    $('si-hits').textContent='—'; $('si-fa').textContent='—';
    ['valid','invalid','neutral'].forEach(c=>{ const cr=P.log.filter(r=>r.cueType===c&&r.rt!==null); const el=$('si-'+c); if(el) el.textContent=cr.length?(cr.reduce((a,b)=>a+b.rt,0)/cr.length).toFixed(0)+' ms':'—'; const row=$('si-'+c+'-row'); if(row) row.style.display=''; });
    return;
  }
  $('si-task').textContent=(S.task||'—')+(S.isPractice?' (PRAC)':'');
  $('si-trial').textContent=S.trial>0?`${S.trial}/${S.maxTrials}`:'—';
  ['valid','invalid','neutral'].forEach(c=>{ const row=$('si-'+c+'-row'); if(row) row.style.display='none'; });
  const log=S.isPractice?S.practiceLog:S.log;
  if(!log.length){
    // No generic-engine (S) activity — try a dedicated-engine task (MMN, FLANKER,
    // P300, …). Show its live trial count and, if it scores responses, accuracy.
    if(_updateSidebarFromActiveEngine()) return;
    $('si-acc').textContent=$('si-rt').textContent=$('si-hits').textContent=$('si-fa').textContent='—'; return;
  }
  const correct=log.filter(r=>r.correct).length;
  const responded=log.filter(r=>r.rt!==null);
  $('si-acc').textContent=(correct/log.length*100).toFixed(0)+'%';
  $('si-rt').textContent=responded.length?(responded.reduce((a,b)=>a+b.rt,0)/responded.length).toFixed(0)+' ms':'—';
  $('si-hits').textContent=log.filter(r=>r.stimType==='GO'&&r.correct).length;
  $('si-fa').textContent=log.filter(r=>r.stimType==='NOGO'&&!r.correct&&r.rt!==null).length;
}

// ── Suppress per-trial LATENCY in the central task feedback ─────────────
// Reaction time stays in the LEFT sidebar (AVG RT), but the "### ms" readout
// in the centre stimulus feedback is distracting and can bias responding, so
// strip it from every .feedback element. Done centrally via a MutationObserver
// so it covers all ~20+ tasks regardless of how each writes its feedback.
function _stripLatencyText(s){
  if(!s) return s;
  // Remove a millisecond reading: optional sign/decimal number + "ms",
  // plus a trailing separator (·, •, —, -) and surrounding spaces.
  var out=s.replace(/-?\d+(?:\.\d+)?\s*ms\s*(?:[·•—-]\s*)?/gi, '');
  return out.replace(/^\s+|\s+$/g,'');
}
(function installLatencySuppression(){
  function sanitizeEl(el){
    if(!el) return;
    var t=el.textContent;
    if(t && /\d\s*ms\b/i.test(t)){
      var cleaned=_stripLatencyText(t);
      if(cleaned!==t) el.textContent=cleaned;
    }
  }
  function attach(){
    var fbs=document.querySelectorAll('.feedback');
    if(!fbs.length){ setTimeout(attach, 300); return; }
    var mo=new MutationObserver(function(muts){
      muts.forEach(function(m){ sanitizeEl(m.target.nodeType===3?m.target.parentNode:m.target); });
    });
    fbs.forEach(function(el){
      sanitizeEl(el);
      mo.observe(el, {childList:true, characterData:true, subtree:true});
    });
    window._latencyObserver=mo;
    window._latencyFeedbackCount=fbs.length;
  }
  if(document.readyState==='loading') document.addEventListener('DOMContentLoaded', attach);
  else attach();
})();


// readouts a few times a second so trial count + running accuracy update live
// (dedicated engines don't call updateSidebar per-trial). Cheap and self-gating.
document.addEventListener('DOMContentLoaded', function(){
  try{
    setInterval(function(){
      try{
        var live = (typeof S!=='undefined' && S && S.log && S.log.length && S.task) ||
                   (typeof P!=='undefined' && P && P.active) ||
                   _findActiveTaskEngine();
        if(live) updateSidebarReadouts();
      }catch(e){}
    }, 350);
  }catch(e){}
});

// Generic live readout for dedicated-engine tasks (MMN, ORN, P300, Flanker, …),
// which keep their own state object rather than using S/P. Finds the active
// engine, shows trial N/total, and — for tasks that score responses — running
// accuracy + mean RT. Passive tasks (no response) leave ACC/RT blank, correctly.
function _updateSidebarFromActiveEngine(){
  var eng=_findActiveTaskEngine();
  // When no task is currently active (e.g. on the results screen), keep showing
  // the most recently active engine's final readout instead of blanking the
  // panel — but only if its results are still on screen (its log is intact).
  if(!eng){
    var last=window._lastTaskEngine;
    if(last && last.obj && Array.isArray(last.obj.log) && last.obj.log.length) eng=last;
    else return false;
  }
  var o=eng.obj, code=eng.code;
  $('si-task').textContent=code+((o.isPractice)?' (PRAC)':'');
  var trial = (typeof o.trial==='number')?o.trial : (typeof o.idx==='number'?o.idx : null);
  var total = (typeof o.maxTrials==='number')?o.maxTrials : (typeof o.maxPresses==='number'?o.maxPresses : null);
  $('si-trial').textContent = (trial!=null)?(trial+(total!=null?('/'+total):'')) : '—';
  // During practice the populated log lives in practiceLog, not log. Prefer the
  // practice log when the engine is in practice mode (many engines keep log:[]
  // as an always-present empty array, which previously masked practice data).
  var lg;
  if(o.isPractice){
    lg = Array.isArray(o.practiceLog)?o.practiceLog : (Array.isArray(o.log)?o.log : null);
  } else {
    lg = Array.isArray(o.log)?o.log : (Array.isArray(o.practiceLog)?o.practiceLog : null);
  }
  // Hits / false alarms — derived from whichever target/response convention the
  // task's log uses. HIT = a target/oddball/Go trial answered correctly (or
  // responded to); FA = a non-target / NoGo trial that drew a response.
  var hf=_computeHitsFA(lg);
  if(lg && lg.length && lg.some(function(r){return r && typeof r.correct==='boolean';})){
    // Tasks that store an explicit per-trial correctness flag.
    var scored=lg.filter(function(r){return r && typeof r.correct==='boolean';});
    var corr=scored.filter(function(r){return r.correct;}).length;
    $('si-acc').textContent=(corr/scored.length*100).toFixed(0)+'%';
    var rts=lg.filter(function(r){return r && typeof r.rt==='number';});
    $('si-rt').textContent=rts.length?(rts.reduce(function(a,b){return a+b.rt;},0)/rts.length).toFixed(0)+' ms':'—';
  } else if(hf && (hf.nTarget+hf.nNon)>0){
    // Go/no-go-style tasks (e.g. N2b, SART) whose log has no `correct` field:
    // derive accuracy from the detection tally. Correct = hits (targets caught)
    // + correct rejections (non-targets correctly withheld) = hits + (nNon − fa).
    var correctTrials=hf.hits+(hf.nNon-hf.fa);
    var totalTrials=hf.nTarget+hf.nNon;
    $('si-acc').textContent=(correctTrials/totalTrials*100).toFixed(0)+'%';
    var rts2=lg.filter(function(r){return r && typeof r.rt==='number';});
    $('si-rt').textContent=rts2.length?(rts2.reduce(function(a,b){return a+b.rt;},0)/rts2.length).toFixed(0)+' ms':'—';
  } else {
    // Passive / no-response task — accuracy not applicable.
    $('si-acc').textContent='—'; $('si-rt').textContent='—';
  }
  $('si-hits').textContent = hf ? hf.hits : '—';
  $('si-fa').textContent   = hf ? hf.fa   : '—';
  // d′ / β — show only when both target and non-target trials exist.
  var sdt = hf ? _computeSDT(hf) : null;
  var dRow=$('si-dprime-row'), bRow=$('si-beta-row');
  if(sdt){
    $('si-dprime').textContent=sdt.dprime; $('si-beta').textContent=sdt.beta;
    if(dRow) dRow.style.display=''; if(bRow) bRow.style.display='';
  } else {
    if(dRow) dRow.style.display='none'; if(bRow) bRow.style.display='none';
  }
  // Per-condition mean latencies (e.g. LEXDEC: Word vs Non-word). Shown only for
  // tasks with a meaningful two-way split; correct responses only.
  _updateConditionLatencies(code, lg);
  return true;
}
// Mean RT split by condition for the active task, into the two generic sidebar
// rows. Correct, responded trials only. Add new tasks by extending the map.
function _updateConditionLatencies(code, lg){
  var aRow=$('si-condA-row'), bRow2=$('si-condB-row');
  function hide(){ if(aRow) aRow.style.display='none'; if(bRow2) bRow2.style.display='none'; }
  if(!Array.isArray(lg) || !lg.length){ hide(); return; }
  // condition definition: {label, test(r)} pairs — first matching split wins
  var SPLITS={
    LEXDEC:    [['Word', function(r){return r.real===true;}], ['Non-word', function(r){return r.real===false;}]],
    LEXDECMAIN:[['Word', function(r){return r.real===true;}], ['Non-word', function(r){return r.real===false;}]]
  };
  var def=SPLITS[code]; if(!def){ hide(); return; }
  function meanRT(testFn){
    var v=lg.filter(function(r){ return r && r.rt!=null && typeof r.rt==='number' && (r.correct!==false) && testFn(r); });
    return v.length ? (v.reduce(function(a,b){return a+b.rt;},0)/v.length).toFixed(0)+' ms' : '—';
  }
  if(aRow){ $('si-condA-lbl').textContent=def[0][0]+' RT'; $('si-condA').textContent=meanRT(def[0][1]); aRow.style.display=''; }
  if(bRow2){ $('si-condB-lbl').textContent=def[1][0]+' RT'; $('si-condB').textContent=meanRT(def[1][1]); bRow2.style.display=''; }
}
// Generic hit/false-alarm tally across the log-field conventions used in the
// battery: isOddball (P300), isTarget (N1P2/N2B/C1/UFOV…), isNoGo (SART/GNG),
// stimType GO/NOGO. Returns {hits,fa} or null if the log has no target concept.
function _computeHitsFA(lg){
  if(!Array.isArray(lg) || !lg.length) return null;
  var s=lg[0];
  function resp(r){
    if(typeof r.responded==='boolean') return r.responded;
    if(typeof r.rt==='number') return true;
    if(r.rt===null) return false;
    if(typeof r.response!=='undefined' && r.response!=null && r.response!=='') return true;
    return undefined;
  }
  var hits=0, fa=0, nTarget=0, nNon=0, hasConcept=false;
  lg.forEach(function(r){
    if(!r) return;
    var isTarget;
    if('isOddball' in r) isTarget=!!r.isOddball;
    else if('isTarget' in r) isTarget=!!r.isTarget;
    else if('isNoGo' in r) isTarget=!r.isNoGo;            // Go = "target" to respond to
    else if('stimType' in r) isTarget=(r.stimType==='GO');
    else return;
    hasConcept=true;
    var responded=resp(r);
    if(isTarget){
      nTarget++;
      // hit = correct on target, or (if no correctness) a response on target
      if(typeof r.correct==='boolean'){ if(r.correct) hits++; }
      else if(responded===true) hits++;
    } else {
      nNon++;
      // false alarm = responded on a non-target (or incorrect on non-target)
      if(typeof r.correct==='boolean'){ if(!r.correct && responded!==false) fa++; }
      else if(responded===true) fa++;
    }
  });
  return hasConcept ? {hits:hits, fa:fa, nTarget:nTarget, nNon:nNon} : null;
}
// Signal-detection d′ and β from hit/FA tallies. Uses the log-linear correction
// (add 0.5 to hits & FAs, 1 to each total) so extreme rates don't blow up to
// ±∞ — the standard fix (Hautus 1995). Returns {dprime, beta} as strings, or
// null if there aren't both target and non-target trials yet.
function _computeSDT(hf){
  if(!hf || hf.nTarget<1 || hf.nNon<1 || typeof normInv!=='function') return null;
  var hr=(hf.hits+0.5)/(hf.nTarget+1);
  var far=(hf.fa+0.5)/(hf.nNon+1);
  var zH=normInv(hr), zF=normInv(far);
  var dprime=zH-zF;
  var beta=Math.exp((zF*zF - zH*zH)/2);
  return { dprime:dprime.toFixed(2), beta:beta.toFixed(2) };
}
// Locate the single active dedicated task engine. Scans known global engine
// objects (var _XXX and const XXX) for one with active===true.
function _findActiveTaskEngine(){
  // 1) window-scoped engines (var _XXX / window-assigned) — enumerable.
  try{
    for(var k in window){
      if(/^_[A-Z][A-Z0-9_]*$/.test(k)){
        var o=window[k];
        if(o && typeof o==='object' && o.active===true){
          window._lastTaskEngine={ obj:o, code:k.replace(/^_/,'') };
          return window._lastTaskEngine;
        }
      }
    }
  }catch(e){}
  // 2) const/let-scoped engines (e.g. const MMN={…}) are NOT enumerable on
  //    window, so probe EVERY known task code through the resolver (which can
  //    see lexical bindings via guarded eval). Deriving the code list from the
  //    task tiles means new tasks are covered automatically — no hand-kept list
  //    to drift out of sync.
  try{
    var tiles=document.querySelectorAll('.task-tile[data-task]');
    for(var i=0;i<tiles.length;i++){
      var code=tiles[i].getAttribute('data-task'); if(!code) continue;
      var ob=_cognosResolveTaskObj(code);
      if(ob && ob.active===true){
        window._lastTaskEngine={ obj:ob, code:String(code).toUpperCase() };
        return window._lastTaskEngine;
      }
    }
  }catch(e){}
  return null;
}

function addLogRow(trial,label,correct,rt,isPrac){
  const div=document.createElement('div');
  div.className=correct?'log-ok':'log-err';
  const rtStr=rt!==null?rt.toFixed(0)+'ms':'T/O';
  div.textContent=(isPrac?'[P] ':'')+'T'+trial+' '+label+' '+(correct?'✓':'✗')+' '+rtStr;
  const la=$('logArea'); la.prepend(div);
  if(la.children.length>80) la.lastChild.remove();
}

function logEntry(entry){
  if(S.isPractice) S.practiceLog.push(entry);
  else S.log.push(entry);
  addLogRow(entry.trial,entry.stimType||'',entry.correct,entry.rt,S.isPractice);
}

// ═══════════════════════════════════════════════════════════
// POSNER
// ═══════════════════════════════════════════════════════════
let P={active:false,isPractice:false,trial:0,maxTrials:20,waiting:false,stimOn:0,log:[],practiceLog:[],cueType:'endogenous',validity:80,soa:200,cueDir:null,targetSide:null,cueValidity:null,timers:[]};
function clearPTimers(){ P.timers.forEach(t=>clearTimeout(t)); P.timers=[]; }
function posnerRTSummary(){
  const log=P.isPractice?P.practiceLog:P.log;
  const avg=a=>a.length?(a.reduce((x,y)=>x+y,0)/a.length).toFixed(0)+'ms':'—';
  const v=log.filter(r=>r.cueType==='valid'&&r.rt!==null).map(r=>r.rt);
  const inv=log.filter(r=>r.cueType==='invalid'&&r.rt!==null).map(r=>r.rt);
  $('pos-valid-rt').textContent=avg(v); $('pos-invalid-rt').textContent=avg(inv);
  $('pos-benefit').textContent=v.length&&inv.length?((inv.reduce((a,b)=>a+b,0)/inv.length)-(v.reduce((a,b)=>a+b,0)/v.length)).toFixed(0)+' ms':'—';
}
function startPosner(isPractice){
  P.active=true; P.isPractice=isPractice;
  if(!isPractice){ P.trial=0; P.log=[]; }
  else { P.trial=0; P.practiceLog=[]; }
  P.cueType=$('posnerCueType').value; P.validity=parseInt($('posnerValidity').value);
  P.soa=parseInt($('posnerSOA').value)||200;
  P.maxTrials = taskTrials('POSNER',5,20,isPractice);
  hideAll();
  $('posnerScreen').style.display='flex';
  $('posPracticeBanner').style.display=isPractice?'block':'none';
  $('exportBtn').disabled=true;
  if(!isPractice) $('logArea').innerHTML='';
  ['posnerCueType','posnerValidity','posnerSOA'].forEach(id=>{ $(id).disabled=true; });
  updateSidebar(); updateKeyHint();
  speak(isPractice?'Practice Posner task. Press space when target appears.':'Starting Posner task.');
  setTimeout(posnerNext,600);
}
function posnerNext(){
  if(P.trial>=P.maxTrials){ posnerEnd(); return; }
  P.trial++;
  $('pos-trial').textContent=`Trial ${P.trial}/${P.maxTrials}`;
  $('posProgressBar').style.width=((P.trial-1)/P.maxTrials*100).toFixed(1)+'%';
  $('posFeedback').textContent=''; $('posFeedback').className='feedback';
  $('pos-cue-badge').textContent='—'; $('pos-cue-badge').className='cue-type-badge neutral';
  resetPosnerArena();
  const targetSide=Math.random()<0.5?'left':'right'; P.targetSide=targetSide;
  let cueDir,cueValidity;
  if(P.validity===50){ cueDir='neutral'; cueValidity='neutral'; }
  else if(Math.random()*100<P.validity){ cueDir=targetSide; cueValidity='valid'; }
  else{ cueDir=targetSide==='left'?'right':'left'; cueValidity='invalid'; }
  P.cueDir=cueDir; P.cueValidity=cueValidity;
  const badge=$('pos-cue-badge'); badge.textContent=cueValidity.toUpperCase(); badge.className='cue-type-badge '+cueValidity;
  P.timers.push(setTimeout(()=>showPosnerCue(cueDir,targetSide),500));
}
function resetPosnerArena(){
  ['posBoxL','posBoxR'].forEach(id=>{ $(id).classList.remove('cued','target-flash'); });
  $('posTargetL').style.opacity='0'; $('posTargetR').style.opacity='0';
  $('posCueArrow').style.opacity='0'; $('posFixDot').style.opacity='1';
  P.waiting=false;
}
function showPosnerCue(cueDir,targetSide){
  if(P.cueType==='endogenous'){ const arrow=$('posCueArrow'); cognosSetArrow(arrow, cueDir==='neutral'?'both':cueDir==='left'?'left':'right'); arrow.style.opacity='1'; $('posFixDot').style.opacity='0'; }
  else{ if(cueDir!=='neutral'){ const boxId=cueDir==='left'?'posBoxL':'posBoxR'; $(boxId).classList.add('cued'); } }
  P.timers.push(setTimeout(()=>showPosnerTarget(targetSide),P.soa));
}
function showPosnerTarget(side){
  $('posCueArrow').style.opacity='0'; $('posFixDot').style.opacity='1';
  ['posBoxL','posBoxR'].forEach(id=>$(id).classList.remove('cued'));
  const tEl=side==='left'?$('posTargetL'):$('posTargetR');
  const box=side==='left'?$('posBoxL'):$('posBoxR');
  tEl.style.opacity='1'; box.classList.add('target-flash');
  triggerFlash();
  P.stimOn=performance.now(); P.waiting=true;
  P.timers.push(setTimeout(posnerTimeout,1500));
}
function posnerDetect(){
  if(!P.waiting) return; clearPTimers(); P.waiting=false;
  const rt=performance.now()-P.stimOn;
  $('pos-rt').textContent=rt.toFixed(0)+' ms';
  const entry={trial:P.trial,task:'POSNER',targetSide:P.targetSide,cueDir:P.cueDir,cueType:P.cueValidity,rt,response:'detect'};
  if(P.isPractice) P.practiceLog.push(entry); else P.log.push(entry);
  addLogRow(P.trial,'POS-'+P.cueValidity.toUpperCase(),true,rt,P.isPractice);
  const fb=$('posFeedback'); fb.textContent=`${rt.toFixed(0)} ms · ${P.cueValidity}`; fb.className='feedback ok';
  speak(rt<300?'fast':'ok'); posnerRTSummary(); updateSidebar();
  $('posTargetL').style.opacity='0'; $('posTargetR').style.opacity='0';
  ['posBoxL','posBoxR'].forEach(id=>$(id).classList.remove('target-flash'));
  P.timers.push(setTimeout(posnerNext,400));
}
function posnerTimeout(){
  if(!P.waiting) return; P.waiting=false;
  const entry={trial:P.trial,task:'POSNER',targetSide:P.targetSide,cueDir:P.cueDir,cueType:P.cueValidity,rt:null,response:'TIMEOUT'};
  if(P.isPractice) P.practiceLog.push(entry); else P.log.push(entry);
  addLogRow(P.trial,'POS-T/O',false,null,P.isPractice);
  $('posFeedback').textContent='T/O — too slow'; $('posFeedback').className='feedback timeout';
  $('posTargetL').style.opacity='0'; $('posTargetR').style.opacity='0';
  ['posBoxL','posBoxR'].forEach(id=>$(id).classList.remove('target-flash','cued'));
  updateSidebar(); P.timers.push(setTimeout(posnerNext,400));
}
function posnerEnd(){
  $('posProgressBar').style.width='100%';
  ['posnerCueType','posnerValidity','posnerSOA'].forEach(id=>{ $(id).disabled=false; });
  if(P.isPractice){
    P.active=false;
    const log=P.practiceLog; const rts=log.filter(r=>r.rt!==null);
    const avgRT=rts.length?(rts.reduce((a,b)=>a+b.rt,0)/rts.length).toFixed(0):'—';
    const tos=log.filter(r=>r.rt===null).length;
    hideAll();
    $('pcStats').innerHTML=`TRIALS &nbsp;<span>${log.length}</span> &nbsp;&nbsp; AVG RT &nbsp;<span>${avgRT} ms</span> &nbsp;&nbsp; TIMEOUTS &nbsp;<span>${tos}</span>`;
    $('practiceComplete').style.display='flex';
    speak('Practice complete. Ready to begin?');
  } else {
    $('exportBtn').disabled=false;
    posnerRTSummary();
    const log=P.log;
    const v=log.filter(r=>r.cueType==='valid'&&r.rt!==null).map(r=>r.rt);
    const inv=log.filter(r=>r.cueType==='invalid'&&r.rt!==null).map(r=>r.rt);
    const benefit=v.length&&inv.length?((inv.reduce((a,b)=>a+b,0)/inv.length)-(v.reduce((a,b)=>a+b,0)/v.length)).toFixed(0)+' ms':null;
    $('posFeedback').textContent='DONE · '+(benefit?`cuing benefit: ${benefit}`:''); $('posFeedback').className='feedback ok';
    speak(benefit?'Task complete. Cuing benefit '+benefit+' milliseconds.':'Task complete.');
    updateSidebar(); P.active=false;
  }
}

// ═══════════════════════════════════════════════════════════
// STANDARD TASKS
// ═══════════════════════════════════════════════════════════
function selectTask(t, isPractice){
  S.maxTrials = taskTrials('SPATIAL',5,20,isPractice);
  S.task=t; S.trial=0; S.isPractice=isPractice;
  if(!isPractice){ S.log=[]; $('logArea').innerHTML=''; }
  else S.practiceLog=[];
  S.nbackHistory=[]; S.lastSpatialIdx=null;
  $('th-task').textContent=t;
  $('exportBtn').disabled=true;
  hideAll();
  var _ts=$('taskscreen'); _ts.style.display='flex'; _ts.setAttribute('data-task', t||'');
  $('practiceBanner').style.display=isPractice?'block':'none';
  updateSidebar(); updateKeyHint();
  // reset adaptive history for new task
  ADAPT.history = {GO:[],NOGO:[],MATCH:[],NOMATCH:[],SPATIAL:[],DEFAULT:[]};
  rtChartReset();
  const chartWrap=$('rtChartWrap');
  if(chartWrap) chartWrap.style.display = isPractice?'none':'flex';
  adaptUpdateBadge();
  speak(isPractice?'Practice '+t+' task.':'Starting '+t+' task.');
  next();
}

const NBACK_LETTERS=['A','B','C','D','E','F','H','K','M','R'];

function next(){
  if(S.trial>=S.maxTrials){ end(); return; }
  S.trial++;
  $('th-trial').textContent=`Trial ${S.trial}/${S.maxTrials}`;
  $('progressBar').style.width=((S.trial-1)/S.maxTrials*100).toFixed(1)+'%';
  $('feedback').textContent=''; $('feedback').className='feedback'; $('nbackPrompt').textContent='';
  // Adaptive ITI: brief fixation cross during inter-trial interval
  const iti = S.isPractice ? 400 : adaptGetITI(adaptConditionKey());
  if(S.trial===1 || S.isPractice){
    renderStim(); arm(); return;
  }
  // Show fixation cross during ITI
  const grid=$('stimGrid'); grid.innerHTML='';
  grid.style.display='';grid.style.alignItems='';grid.style.justifyContent='';grid.style.minHeight='';
  const fix=document.createElement('div');
  fix.style.cssText='grid-column:2;grid-row:2;display:flex;align-items:center;justify-content:center;font-size:1.6rem;color:var(--dim);';
  fix.textContent='+';
  grid.appendChild(fix);
  setTimeout(()=>{ renderStim(); arm(); }, iti);
}

function renderStim(){
  const grid=$('stimGrid'); grid.innerHTML='';
  // Reset per-task layout overrides (GNG flexes to a single centred slot) back
  // to the default 3x3 grid so SPATIAL / N-back render correctly.
  grid.style.display='';grid.style.alignItems='';grid.style.justifyContent='';grid.style.minHeight='';
  S.stimType=null; S.stimOn=0; S.waiting=false;
  if(S.task==='SPATIAL'){
    let idx; do{ idx=Math.floor(Math.random()*9); }while(idx===S.lastSpatialIdx&&Math.random()<0.7);
    S.lastSpatialIdx=idx; S.stimType=idx;
    for(let i=0;i<9;i++){ const c=document.createElement('div'); c.className='cell'+(i===idx?' spatial-active':''); c.onclick=()=>handleClick(i); grid.appendChild(c); }
    const pos=['top-left','top-center','top-right','middle-left','center','middle-right','bottom-left','bottom-center','bottom-right'];
    speak(pos[idx]);
  } else if(S.task==='GNG'){
    const go=Math.random()>0.3; S.stimType=go?'GO':'NOGO';
    // Go/No-Go has no spatial component — show ONE centred stimulus, not a 3x3
    // grid of empty cells. Flex the grid container to a single centred slot.
    grid.style.display='flex';grid.style.alignItems='center';grid.style.justifyContent='center';grid.style.minHeight='95px';
    const c=document.createElement('div');
    c.className='cell '+(go?'go-stim':'nogo-stim');
    c.style.width='110px';c.style.height='110px';c.style.fontSize='3rem';c.style.borderRadius='8px';
    c.textContent=go?'●':'○';
    c.onclick=()=>handleClick(true);
    grid.appendChild(c);
    speak(go?'Go':'No-go');
  } else if(S.task==='NBACK'){
    let letter,isMatch=false;
    if(S.nbackHistory.length>=S.nbackN&&Math.random()<0.35){ letter=S.nbackHistory[S.nbackHistory.length-S.nbackN]; isMatch=true; }
    else{ let tries=0; do{ letter=NBACK_LETTERS[Math.floor(Math.random()*NBACK_LETTERS.length)]; tries++; }while(S.nbackHistory.length>=S.nbackN&&letter===S.nbackHistory[S.nbackHistory.length-S.nbackN]&&tries<10); isMatch=(S.nbackHistory.length>=S.nbackN&&letter===S.nbackHistory[S.nbackHistory.length-S.nbackN]); }
    S.nbackTarget=isMatch; S.stimType=letter;
    S.nbackHistory.push(letter); if(S.nbackHistory.length>20) S.nbackHistory.shift();
    // N-back has no spatial component — show ONE centred letter, not a 3x3 grid
    // of empty cells. Flex the grid container to a single centred slot.
    grid.style.display='flex';grid.style.alignItems='center';grid.style.justifyContent='center';grid.style.minHeight='95px';
    const c=document.createElement('div');
    c.className='cell nback-stim';
    c.style.width='110px';c.style.height='110px';c.style.borderRadius='8px';
    c.textContent=letter;
    c.onclick=()=>respButton(true);
    grid.appendChild(c);
    if(S.trial>S.nbackN) $('nbackPrompt').textContent=`Same as ${S.nbackN} trial${S.nbackN>1?'s':''} ago? (F=YES / J=NO)`;
    else $('nbackPrompt').textContent=`Trial ${S.trial} — observe the letter`;
    speak(letter);
  }
}

function arm(){ triggerFlash(); requestAnimationFrame(()=>{ S.stimOn=performance.now(); S.waiting=true; setTimeout(timeout,1500); }); }
function handleClick(val){ if(!S.waiting) return; evaluate(val,true); }
function respButton(v){ if(!S.waiting) return; evaluate(v,false); }

function evaluate(input,isClick){
  S.waiting=false; const rt=performance.now()-S.stimOn; let correct=false;
  if(S.task==='SPATIAL'){
    correct=(input===S.stimType); logEntry({trial:S.trial,type:S.task,stimType:S.stimType,correct,rt,response:input});
    const cells=$('stimGrid').children;
    if(typeof input==='number'&&cells[input]) cells[input].classList.add(correct?'flash-ok':'flash-err');
  } else if(S.task==='GNG'){
    if(S.stimType==='GO') correct=(isClick||input===true); else correct=(input===false);
    logEntry({trial:S.trial,type:S.task,stimType:S.stimType,correct,rt:(isClick||input!==null)?rt:null,response:input});
  } else if(S.task==='NBACK'){
    if(S.trial<=S.nbackN){ setTimeout(next,400); return; }
    const userSaysMatch=(isClick||input===true); correct=(userSaysMatch===S.nbackTarget);
    logEntry({trial:S.trial,type:S.task,stimType:S.stimType+':'+(S.nbackTarget?'MATCH':'NON'),correct,rt,response:input});
  }
  const fb=$('feedback'); fb.textContent=`${rt.toFixed(0)} ms  ${correct?'✓ correct':'✗ error'}`; fb.className='feedback '+(correct?'ok':'err');
  // Feed adaptive engine + chart
  if(!S.isPractice){
    const condKey = adaptConditionKey();
    if(rt !== null) adaptPushRT(condKey, rt);
    rtChartPush(rt, correct);
  }
  speak(correct?'correct':'wrong'); updateSidebar(); setTimeout(next,350);
}

function timeout(){
  if(!S.waiting) return; S.waiting=false; let correct=false;
  if(S.task==='GNG'){ correct=(S.stimType==='NOGO'); logEntry({trial:S.trial,type:S.task,stimType:S.stimType,correct,rt:null,response:'TIMEOUT'}); }
  else if(S.task==='NBACK'&&S.trial>S.nbackN){ correct=!S.nbackTarget; logEntry({trial:S.trial,type:S.task,stimType:S.stimType+':'+(S.nbackTarget?'MATCH':'NON'),correct,rt:null,response:'TIMEOUT'}); }
  else if(S.task==='SPATIAL'){ logEntry({trial:S.trial,type:S.task,stimType:S.stimType,correct:false,rt:null,response:'TIMEOUT'}); }
  $('feedback').textContent='T/O — no response'; $('feedback').className='feedback timeout';
  updateSidebar(); setTimeout(next,350);
}

function end(){
  $('progressBar').style.width='100%';
  if(S.isPractice){
    // show practice complete screen
    const log=S.practiceLog;
    const correct=log.filter(r=>r.correct).length;
    const rts=log.filter(r=>r.rt!==null);
    const avgRT=rts.length?(rts.reduce((a,b)=>a+b.rt,0)/rts.length).toFixed(0):'—';
    const acc=log.length?(correct/log.length*100).toFixed(0):0;
    hideAll();
    $('pcStats').innerHTML=`TRIALS &nbsp;<span>${log.length}</span> &nbsp;&nbsp; ACC &nbsp;<span>${acc}%</span> &nbsp;&nbsp; AVG RT &nbsp;<span>${avgRT} ms</span>`;
    $('practiceComplete').style.display='flex';
    speak('Practice complete. Ready to begin the main task?');
  } else {
    $('exportBtn').disabled=false;
    const acc=S.log.length?(S.log.filter(r=>r.correct).length/S.log.length*100).toFixed(1):0;
    $('feedback').textContent=`DONE · ${S.log.length} trials · acc ${acc}%`; $('feedback').className='feedback ok';
    speak('Task complete. Accuracy: '+acc+' percent.'); updateSidebar();
  }
}

function exportCSV(){
  const usePosner=P.log.length>0&&!S.log.length;
  const log=usePosner?P.log:S.log; if(!log.length) return;
  let header,rows;
  if(usePosner){ header='trial,task,targetSide,cueDir,cueType,rt_ms,response\n'; rows=log.map(r=>[r.trial,r.task,r.targetSide,r.cueDir,r.cueType,r.rt!==null?r.rt.toFixed(1):'',r.response].join(',')).join('\n'); }
  else{ header='trial,task,stimType,correct,rt_ms,response\n'; rows=log.map(r=>[r.trial,r.type,r.stimType,r.correct?1:0,r.rt!==null?r.rt.toFixed(1):'',r.response].join(',')).join('\n'); }
  const blob=new Blob([header+rows],{type:'text/csv'}); const a=document.createElement('a'); a.href=URL.createObjectURL(blob); a.download=`cognos_${Date.now()}.csv`; a.click();
}

// ═══════════════════════════════════════════════════════════
// ABORT HARNESS — stops EVERY task engine on RESET/abort/ESC.
// Two engine families exist in this app:
//   1. "_XXX" engines (var _RON, _ABR, _ORN, ...): objects that may
//      carry .clear(), ._raf, ._timer(s), .audioCtx/._actx, .active.
//      These are top-level vars, so they live on window and can be
//      auto-discovered — any new _XXX task is covered automatically.
//   2. Older capitalized engines (MMN, FLANKER, SSVEP, ...): handled
//      explicitly below in resetAll via their existing cleanup paths.
// The harness is defensive: every access is guarded so a malformed or
// partially-initialized engine can never throw and abort the abort.
function _killEngine(e){
  if(!e || typeof e!=='object') return;
  // stop scheduled timer chains
  try{ if(typeof e.clear==='function') e.clear(); }catch(_){}
  try{ if(Array.isArray(e._timers)){ e._timers.forEach(t=>{try{clearTimeout(t);}catch(_){}}); e._timers=[]; } }catch(_){}
  try{ if(e._timer!=null){ clearTimeout(e._timer); e._timer=null; } }catch(_){}
  try{ if(e._iv!=null){ clearInterval(e._iv); e._iv=null; } }catch(_){}
  // stop animation loops
  try{ if(e._raf!=null){ cancelAnimationFrame(e._raf); e._raf=null; } }catch(_){}
  // close any audio contexts the engine opened
  ['audioCtx','_actx','_ctx','ctx'].forEach(k=>{
    try{ if(e[k] && typeof e[k].close==='function' && e[k].state!=='closed') e[k].close(); }catch(_){}
    try{ if(e[k] && typeof e[k]==='object' && 'close' in e[k]) e[k]=null; }catch(_){}
  });
  // mark inactive last so any in-flight callback bails on its active-guard
  try{ e.active=false; }catch(_){}
  try{ if('_queryWaiting' in e) e._queryWaiting=false; }catch(_){}
}
function abortAllTaskEngines(){
  // 1. Auto-discover and kill every "_XXX" engine living on window.
  try{
    for(const k in window){
      if(/^_[A-Z][A-Z0-9_]*$/.test(k)){
        let e; try{ e=window[k]; }catch(_){ continue; }
        if(e && typeof e==='object' && ('active' in e || '_timers' in e || '_raf' in e || 'clear' in e)){
          _killEngine(e);
        }
      }
    }
  }catch(_){}
  // 1b. Explicit fallback list — guarantees coverage even if a var is
  //     not enumerable via for-in. Keep in sync when adding _XXX tasks
  //     (the auto-discovery above will usually catch new ones anyway).
  try{
    ['_ABR','_BNT','_C1','_CDA','_CDT','_CNVW','_CPS','_DIGCAN','_ERAN','_FER','_FRN',
     '_GABOR','_LAN','_LDAEP','_LPC','_MATRIX','_META','_MFN','_N1P2','_N2B',
     '_ORN','_P100','_PAL','_PD','_PE','_PHONFLUE','_PMN','_RON','_SART','_SRCMEM',
     '_STAR','_SYMSEARCH','_THALPHA','_TOJ','_UFOV','_VPP'].forEach(n=>{
      try{ _killEngine(window[n]); }catch(_){}
    });
  }catch(_){}
  // 2. Stop any photic/trigger flash loop.
  try{ if(typeof stopTriggerFlash==='function') stopTriggerFlash(); }catch(_){}
}

// ═══════════════════════════════════════════════════════════
// PROGRESS-BAR CONFOUND SUPPRESSION  (battery-wide)
// All on-screen trial progress bars are hidden via CSS
// (.progress-bar-wrap{display:none}) because an elapsed-time / trials-
// remaining cue is a confound: it drives anticipatory responses and, on
// passive/self-paced ERP tasks especially, contaminates the slow pre-movement
// and pre-attentive potentials being measured. Task code still sets
// bar.style.width harmlessly — the element is simply never shown.
//
// PROGRESS_HIDDEN_ALL documents the policy; applyProgressConfoundSuppression()
// is retained as a belt-and-suspenders runtime pass (and so existing callers /
// the test harness keep working) — it force-hides every wrapper in case any
// inline style ever re-shows one.
const PROGRESS_HIDDEN_ALL = true;
function applyProgressConfoundSuppression(){
  try{
    var wraps=document.querySelectorAll('.progress-bar-wrap');
    for(var i=0;i<wraps.length;i++){ try{ wraps[i].style.display='none'; }catch(_){} }
  }catch(_){}
}
if(document.readyState==='loading'){
  document.addEventListener('DOMContentLoaded', applyProgressConfoundSuppression);
}else{
  applyProgressConfoundSuppression();
}

function resetAll(){
  abortAllTaskEngines();
  try{ if(window.speechSynthesis) window.speechSynthesis.cancel(); }catch(e){}
  try{ window._cognosCountdownActive=false; _clearCountdownTimers(); var _cd=document.getElementById('cognosCountdown'); if(_cd) _cd.style.display='none'; }catch(e){}
  stopMic(); clearPTimers();
  // FR cleanup
  clearInterval(FR.distractorTimer); clearInterval(FR.recallTimer);
  FR.studyTimers.forEach(t=>clearTimeout(t));
  Object.assign(FR,{active:false,isPractice:false,phase:null,studyList:[],studyIdx:0,distractorRemaining:0,distractorTimer:null,distractorProblem:null,recallRemaining:0,recallTimer:null,recalled:[],studyTimers:[]});
  if($('frRecallInput')) $('frRecallInput').disabled=false;
  // Adaptive + chart cleanup
  ADAPT.history = {GO:[],NOGO:[],MATCH:[],NOMATCH:[],SPATIAL:[],DEFAULT:[]};
  rtChartReset();
  const chartWrapR=$('rtChartWrap'); if(chartWrapR) chartWrapR.style.display='none';
  // WCST cleanup
  clearTimeout(WCST._feedbackTimer);
  Object.assign(WCST,{active:false,isPractice:false,trial:0,log:[],practiceLog:[],rule:null,prevRule:null,runsComplete:0,consecutive:0,waiting:false,_feedbackTimer:null});
  // STB cleanup
  stbClear();
  Object.assign(STB,{active:false,isPractice:false,trial:0,memSet:[],probe:null,probeIsTarget:false,waiting:false,responded:false,stimOn:0,log:[],practiceLog:[],_timers:[]});
  // VRT cleanup
  // CSR cleanup
  csrClearTimers();
  Object.assign(CSR,{active:false,isPractice:false,trial:0,log:[],practiceLog:[],waiting:false,responded:false,stimOn:0,_timers:[]});
  // P300 cleanup
  p300ClearTimers();
  Object.assign(P300,{active:false,isPractice:false,trial:0,log:[],practiceLog:[],waiting:false,responded:false,stimOn:0,_timers:[]});
  // Passive ERP tasks (ORN/PMN/CPS) auto-advance on their own timer chains — abort
  // must stop them or they keep firing (advancing + playing audio) after exit.
  if(typeof _ORN!=='undefined' && _ORN){ try{ _ORN.clear(); }catch(e){} _ORN.active=false; }
  if(typeof _PMN!=='undefined' && _PMN){ try{ _PMN.clear(); }catch(e){} _PMN.active=false; }
  if(typeof _CPS!=='undefined' && _CPS){ try{ _CPS.clear(); }catch(e){} _CPS.active=false; }
  VRT._timers.forEach(t=>clearTimeout(t));
  Object.assign(VRT,{active:false,isPractice:false,phase:null,studyItems:[],testItems:[],trialIdx:0,log:[],practiceLog:[],waiting:false,stimOn:0,_timers:[]});
  P={active:false,isPractice:false,trial:0,maxTrials:20,waiting:false,stimOn:0,log:[],practiceLog:[],cueType:'endogenous',validity:80,soa:200,cueDir:null,targetSide:null,cueValidity:null,timers:[]};
  S={task:null,trial:0,maxTrials:20,isPractice:false,practiceTrials:5,waiting:false,stimType:null,stimOn:0,log:[],practiceLog:[],nbackHistory:[],nbackN:1,nbackTarget:null,lastSpatialIdx:null};
  currentIntroTask=null;
  // Flanker / Stop / MMN / P600 / ERN / N400 cleanup
  if(typeof n400ClearTimers==='function') n400ClearTimers();
  if(typeof N400!=='undefined') Object.assign(N400,{active:false,isPractice:false,trial:0,log:[],practiceLog:[],phase:null,waiting:false,stimOn:0,_timers:[]});
  ['flankerScreen','stopScreen','mmnScreen','p600Screen','ernScreen'].forEach(id=>{const el=document.getElementById(id);if(el)el.style.display='none';});
  if(typeof FLANKER!=='undefined'){FLANKER._timers.forEach(t=>clearTimeout(t));Object.assign(FLANKER,{active:false,waiting:false,log:[],practiceLog:[],_timers:[]});}
  if(typeof STOP!=='undefined'){STOP._timers.forEach(t=>clearTimeout(t));Object.assign(STOP,{active:false,waiting:false,stopWaiting:false,log:[],practiceLog:[],_timers:[]});}
  if(typeof MMN!=='undefined'){MMN._timers.forEach(t=>clearTimeout(t));if(MMN.audioCtx){try{MMN.audioCtx.close();}catch(e){}}Object.assign(MMN,{active:false,audioCtx:null,_timers:[],log:[]});}
  if(typeof MMNS!=='undefined'){if(typeof mmnsClear==='function')mmnsClear();MMNS._timers.forEach(t=>clearTimeout(t));Object.assign(MMNS,{active:false,isPractice:false,trial:0,_timers:[]});const mmnsEl=document.getElementById('mmnspeechScreen');if(mmnsEl)mmnsEl.style.display='none';}
  if(typeof SSVEP!=='undefined'){SSVEP.active=false;SSVEP._queryWaiting=false;if(SSVEP._raf){cancelAnimationFrame(SSVEP._raf);SSVEP._raf=null;}if(SSVEP._timer){clearTimeout(SSVEP._timer);SSVEP._timer=null;}const ssvepEl=document.getElementById('ssvepScreen');if(ssvepEl)ssvepEl.style.display='none';}
  if(typeof P600!=='undefined'){P600._timers.forEach(t=>clearTimeout(t));Object.assign(P600,{active:false,waiting:false,log:[],practiceLog:[],_timers:[]});}
  if(typeof ERN!=='undefined'){ERN._timers.forEach(t=>clearTimeout(t));Object.assign(ERN,{active:false,waiting:false,log:[],practiceLog:[],_timers:[]});}
  if(typeof STROOP!=='undefined'){STROOP._timers.forEach(t=>clearTimeout(t));Object.assign(STROOP,{active:false,waiting:false,log:[],practiceLog:[],_timers:[]});}
  const stroopEl=document.getElementById('stroopScreen');if(stroopEl)stroopEl.style.display='none';
  if(typeof DST!=='undefined'){DST._timers.forEach(t=>clearTimeout(t));Object.assign(DST,{active:false,phase:null,subtest:'forward',spanLen:3,strikes:0,fwdSpan:0,bwdSpan:0,currentSeq:[],entered:[],log:[],practiceLog:[],_timers:[]});}
  const dstEl=document.getElementById('dstScreen');if(dstEl)dstEl.style.display='none';
  if(typeof CNV!=='undefined'){CNV._timers.forEach(t=>clearTimeout(t));if(CNV.audioCtx){try{CNV.audioCtx.close();}catch(e){}}Object.assign(CNV,{active:false,waiting:false,log:[],practiceLog:[],_timers:[],audioCtx:null});}
  const cnvEl=document.getElementById('cnvScreen');if(cnvEl)cnvEl.style.display='none';
  if(typeof FTT!=='undefined'){FTT._timers.forEach(t=>clearTimeout(t));if(FTT._raf){cancelAnimationFrame(FTT._raf);FTT._raf=null;}Object.assign(FTT,{active:false,subtest:null,trialPhase:null,taps:[],altNext:'L',log:[],practiceLog:[],_timers:[],_raf:null});}
  const fttEl=document.getElementById('fttScreen');if(fttEl)fttEl.style.display='none';
  ['posnerCueType','posnerValidity','posnerSOA'].forEach(id=>{ $(id).disabled=false; });
  $('progressBar').style.width='0%'; $('posProgressBar').style.width='0%';
  $('feedback').textContent=''; $('posFeedback').textContent='';
  $('exportBtn').disabled=true; $('logArea').innerHTML='';
  ['valid','invalid','neutral'].forEach(c=>{ const row=$('si-'+c+'-row'); if(row) row.style.display='none'; });
  if(typeof stopTriggerFlash==='function') stopTriggerFlash();   // stop photic flash on abort/reset
  hideAll(); $('home').style.display='flex';
  updateSidebar(); updateKeyHint();
  if(typeof refreshTaskTileChecks==='function') refreshTaskTileChecks();
}

// ═══════════════════════════════════════════════════════════
// FREE RECALL ENGINE
// ═══════════════════════════════════════════════════════════
const FR_WORD_POOLS = {
  common: ['apple','river','candle','mirror','garden','castle','window','pillow','hammer','silver','bridge','forest','ladder','butter','pencil','circle','doctor','orange','planet','market','bottle','carpet','anchor','temple','jacket','desert','lantern','compass','feather','thunder','blanket','crystal','harvest','kitchen','lantern','shovel','summit','flower','spider','tunnel'],
  abstract: ['justice','memory','courage','freedom','wisdom','sorrow','belief','wonder','silence','patience','virtue','glory','reason','shadow','spirit','motion','burden','longing','triumph','chaos']
};

const FR = {
  active: false,
  isPractice: false,
  phase: null,           // 'study' | 'distractor' | 'recall' | 'results'
  studyList: [],         // words shown
  studyDuration: 2000,   // ms per word
  studyISI: 400,         // inter-stimulus blank
  studyIdx: 0,
  distractorDuration: 30,
  distractorRemaining: 0,
  distractorTimer: null,
  distractorProblem: null, // {a,b,op,answer}
  recallDuration: 90,
  recallRemaining: 0,
  recallTimer: null,
  recalled: [],          // [{word, position, isHit, isIntrusion, isDuplicate, time}]
  studyTimers: [],
  listSize: 12,
  useDistractor: true
};

// word pool helpers
function frShufflePool(pool, n) {
  const arr = [...pool].sort(() => Math.random() - 0.5);
  return arr.slice(0, Math.min(n, arr.length));
}

function frBuildList(n) {
  const all = [...FR_WORD_POOLS.common, ...FR_WORD_POOLS.abstract];
  const shuffled = all.sort(() => Math.random() - 0.5);
  return shuffled.slice(0, n).map(w => w.toUpperCase());
}

// Levenshtein distance for fuzzy matching
function levenshtein(a, b) {
  const m = a.length, n = b.length;
  const dp = Array.from({length: m+1}, (_,i) => Array.from({length: n+1}, (_,j) => j===0?i:0));
  for(let j=1;j<=n;j++) dp[0][j]=j;
  for(let i=1;i<=m;i++) for(let j=1;j<=n;j++) {
    dp[i][j] = a[i-1]===b[j-1] ? dp[i-1][j-1] : 1+Math.min(dp[i-1][j],dp[i][j-1],dp[i-1][j-1]);
  }
  return dp[m][n];
}

function frMatchWord(input, list) {
  const norm = input.trim().toUpperCase();
  if(!norm) return null;
  // exact
  if(list.includes(norm)) return norm;
  // fuzzy within edit distance 1 for words >=4 chars, 2 for >=7 chars
  for(const w of list) {
    const maxDist = w.length >= 7 ? 2 : w.length >= 4 ? 1 : 0;
    if(levenshtein(norm, w) <= maxDist) return w;
  }
  return null;
}

function startFreeRecall(isPractice) {
  FR.active = true;
  FR.isPractice = isPractice;
  FR.listSize = isPractice ? 6 : 12;
  FR.studyList = frBuildList(FR.listSize);
  FR.studyIdx = 0;
  FR.recalled = [];
  FR.phase = 'study';
  FR.studyTimers = [];

  // Build the recognition test: the studied words (targets) plus an equal
  // number of foils (unstudied words from the same pool), shuffled together.
  var poolAll = [].concat(FR_WORD_POOLS.common, FR_WORD_POOLS.abstract).map(function(w){return w.toUpperCase();});
  var studiedSet = {}; FR.studyList.forEach(function(w){ studiedSet[w]=1; });
  var foilPool = poolAll.filter(function(w){ return !studiedSet[w]; }).sort(function(){return Math.random()-0.5;});
  var foils = foilPool.slice(0, FR.studyList.length);
  FR.recogList = FR.studyList.map(function(w){ return {word:w, old:true}; })
                  .concat(foils.map(function(w){ return {word:w, old:false}; }))
                  .sort(function(){return Math.random()-0.5;});
  FR.recogIdx = 0;
  FR.recogResponses = [];

  hideAll();
  $('frScreen').style.display = 'flex';
  $('frPracticeBanner').style.display = isPractice ? 'block' : 'none';
  ['frStudyPhase','frDistractorPhase','frRecallPhase','frRecognitionPhase','frResultsPhase'].forEach(id => $(id).style.display = 'none');
  $('frStudyPhase').style.display = 'flex';
  $('si-task').textContent = tr('RECALL')+(isPractice?' (PRAC)':'');

  speak(isPractice ? 'Practice recognition. Remember the words.' : 'Recognition memory task. Remember the words you see.');
  frRunStudy();
}

function frRunStudy() {
  const total = FR.studyList.length;
  function showWord(i) {
    if(i >= total) { frEndStudy(); return; }
    $('frStudyCounter').textContent = `Word ${i+1} of ${total}`;
    $('frStudyBar').style.width = ((i/total)*100).toFixed(1)+'%';
    const wd = $('frWordDisplay');
    wd.classList.remove('blank');
    wd.textContent = FR.studyList[i];
    speak(FR.studyList[i].toLowerCase());
    FR.studyTimers.push(setTimeout(() => {
      wd.classList.add('blank');
      FR.studyTimers.push(setTimeout(() => showWord(i+1), FR.studyISI));
    }, FR.studyDuration));
  }
  showWord(0);
}

function frEndStudy() {
  $('frStudyBar').style.width = '100%';
  $('frWordDisplay').textContent = '—';
  if(FR.useDistractor && !FR.isPractice) {
    setTimeout(frStartDistractor, 400);
  } else {
    setTimeout(frStartRecall, 600);
  }
}

// ── distractor (mental arithmetic) ──
function frMakeProblem() {
  const ops = ['+','-'];
  const op = ops[Math.floor(Math.random()*ops.length)];
  let a, b, answer;
  if(op==='+') { a=Math.floor(Math.random()*50)+10; b=Math.floor(Math.random()*50)+10; answer=a+b; }
  else { a=Math.floor(Math.random()*50)+30; b=Math.floor(Math.random()*30)+5; answer=a-b; }
  return {a,b,op,answer};
}

function frStartDistractor() {
  FR.phase='distractor';
  FR.distractorRemaining = FR.distractorDuration;
  $('frStudyPhase').style.display='none';
  $('frDistractorPhase').style.display='flex';
  $('frDistractorInput').value='';
  $('frDistractorFb').textContent='';
  frNewDistractorProblem();
  speak('Distractor phase. Solve the arithmetic problems.');
  FR.distractorTimer = setInterval(frDistractorTick, 1000);
}

function frNewDistractorProblem() {
  FR.distractorProblem = frMakeProblem();
  $('frDistractorProblem').textContent = `${FR.distractorProblem.a} ${FR.distractorProblem.op} ${FR.distractorProblem.b} = ?`;
  $('frDistractorInput').value='';
  $('frDistractorInput').focus();
}

function frDistractorTick() {
  FR.distractorRemaining--;
  $('frDistractorTimer').textContent = `${FR.distractorRemaining} s remaining`;
  if(FR.distractorRemaining <= 0) {
    clearInterval(FR.distractorTimer);
    frStartRecall();
  }
}

function checkDistractor() {
  const val = parseInt($('frDistractorInput').value);
  if(isNaN(val)) return;
  const correct = val === FR.distractorProblem.answer;
  const fb = $('frDistractorFb');
  fb.textContent = correct ? '✓' : '✗ ' + FR.distractorProblem.answer;
  fb.className = 'fr-distractor-fb ' + (correct ? 'ok' : 'err');
  if(correct || $('frDistractorInput').value.length >= 4) {
    setTimeout(frNewDistractorProblem, correct ? 200 : 600);
  }
}

// ── recognition (old/new forced-choice) phase ──
// Replaces typed free recall: easier responding (two keys / two buttons),
// yields hits / false alarms / d′.
function frStartRecall() {
  clearInterval(FR.distractorTimer);
  FR.phase = 'recognition';
  FR.recogIdx = 0;
  FR.recogResponses = [];
  $('frDistractorPhase').style.display='none';
  $('frStudyPhase').style.display='none';
  $('frRecallPhase').style.display='none';
  $('frRecognitionPhase').style.display='flex';
  $('frRecogFeedback').textContent='';
  speak('Now decide whether each word was on the list. Press F for old, J for new.');
  frRecogNext();
}
function frRecogNext(){
  if(!FR.active) return;
  if(FR.recogIdx >= FR.recogList.length){ frRecogEnd(); return; }
  var item = FR.recogList[FR.recogIdx];
  FR.recogCurOnset = performance.now();
  $('frRecogWord').textContent = item.word;
  $('frRecogCount').textContent = (FR.recogIdx) + ' / ' + FR.recogList.length;
  try{ triggerFlash(); }catch(e){}
}
function frRecogAnswer(saidOld){
  if(!FR.active || FR.phase!=='recognition') return;
  var item = FR.recogList[FR.recogIdx];
  if(!item) return;
  var correct = (saidOld === item.old);
  var rt = +(performance.now() - (FR.recogCurOnset||performance.now())).toFixed(1);
  FR.recogResponses.push({word:item.word, old:item.old, saidOld:saidOld, correct:correct, rt:rt});
  // brief flash on the chosen button
  var btn = saidOld ? $('frRecogOld') : $('frRecogNew');
  if(btn){ btn.classList.add(correct?'flash-ok':'flash-err'); setTimeout(function(){ btn.classList.remove('flash-ok','flash-err'); }, 250); }
  try{ Trigger.send(correct?1:2,'RECOG_resp',{old:item.old,saidOld:saidOld,correct:correct}); }catch(e){}
  FR.recogIdx++;
  setTimeout(frRecogNext, 280);
}
document.addEventListener('keydown', function frRecogKey(e){
  if(!FR.active || FR.phase!=='recognition') return;
  if(e.target && (e.target.tagName==='INPUT'||e.target.tagName==='TEXTAREA')) return;
  var k=(e.key||'').toLowerCase();
  if(k==='f'){ e.preventDefault(); frRecogAnswer(true); }
  else if(k==='j'){ e.preventDefault(); frRecogAnswer(false); }
});
function frRecogEnd(){
  FR.phase='results';
  setTimeout(frShowResults, 300);
}

// ── (legacy typed recall — retained but no longer used) ──
function frStartRecallTyped() {
  clearInterval(FR.distractorTimer);
  FR.phase = 'recall';
  FR.recallRemaining = FR.recallDuration;
  FR.recalled = [];
  $('frDistractorPhase').style.display='none';
  $('frStudyPhase').style.display='none';
  $('frRecallPhase').style.display='flex';
  $('frRecallChips').innerHTML='';
  $('frRecallInput').value='';
  $('frRecallCount').textContent='0 words recalled';
  $('frRecallTimer').textContent=FR.recallDuration+' s';
  $('frRecallTimer').className='fr-recall-timer';
  setTimeout(()=>$('frRecallInput').focus(), 100);
  speak('Recall phase. Type every word you remember.');
  FR.recallTimer = setInterval(frRecallTick, 1000);
}

function frRecallTick() {
  FR.recallRemaining--;
  const el = $('frRecallTimer');
  el.textContent = FR.recallRemaining + ' s';
  el.className = 'fr-recall-timer' + (FR.recallRemaining <= 15 ? ' urgent' : '');
  if(FR.recallRemaining <= 0) {
    clearInterval(FR.recallTimer);
    frEndRecall();
  }
}

function handleRecallKey(e) {
  if(e.key === 'Enter') {
    e.preventDefault();
    const raw = $('frRecallInput').value.trim();
    if(!raw) return;
    frSubmitRecallWord(raw);
    $('frRecallInput').value = '';
  }
}

function frSubmitRecallWord(raw) {
  const norm = raw.trim().toUpperCase();
  if(!norm) return;

  // check duplicate (exact already recalled)
  const alreadyRecalled = FR.recalled.map(r=>r.matchedWord||r.word);
  const matchedTarget = frMatchWord(norm, FR.studyList);

  let entry;
  if(matchedTarget && alreadyRecalled.includes(matchedTarget)) {
    entry = {word: norm, matchedWord: matchedTarget, isHit: false, isIntrusion: false, isDuplicate: true, time: FR.recallDuration - FR.recallRemaining};
  } else if(matchedTarget) {
    const pos = FR.studyList.indexOf(matchedTarget);
    entry = {word: norm, matchedWord: matchedTarget, serialPos: pos, isHit: true, isIntrusion: false, isDuplicate: false, time: FR.recallDuration - FR.recallRemaining};
  } else {
    entry = {word: norm, matchedWord: null, isHit: false, isIntrusion: true, isDuplicate: false, time: FR.recallDuration - FR.recallRemaining};
  }
  FR.recalled.push(entry);

  // render chip
  const chip = document.createElement('div');
  chip.className = 'fr-chip' + (entry.isHit ? ' hit' : entry.isIntrusion ? ' intrusion' : ' duplicate');
  chip.textContent = entry.isHit ? (entry.matchedWord !== entry.word ? entry.matchedWord+'*' : entry.matchedWord) : norm + (entry.isDuplicate ? ' ×2' : ' ?');
  $('frRecallChips').appendChild(chip);

  const hits = FR.recalled.filter(r=>r.isHit).length;
  $('frRecallCount').textContent = `${hits} word${hits!==1?'s':''} recalled`;
}

function frEndRecall() {
  clearInterval(FR.recallTimer);
  $('frRecallInput').disabled = true;
  FR.phase = 'results';
  setTimeout(frShowResults, 400);
}

function frShowResults() {
  $('frRecallPhase').style.display='none';
  $('frRecognitionPhase').style.display='none';
  $('frResultsPhase').style.display='flex';

  var resp = FR.recogResponses || [];
  var targets = resp.filter(function(r){ return r.old; });
  var foils   = resp.filter(function(r){ return !r.old; });
  var hits    = targets.filter(function(r){ return r.saidOld; }).length;
  var misses  = targets.length - hits;
  var fa      = foils.filter(function(r){ return r.saidOld; }).length;
  var cr      = foils.length - fa;
  var nTarg   = targets.length || 1;
  var nFoil   = foils.length || 1;
  // d′ with log-linear correction to avoid infinities
  var hitRate = (hits + 0.5) / (nTarg + 1);
  var faRate  = (fa + 0.5) / (nFoil + 1);
  function znorm(p){ // inverse normal CDF (Acklam approximation)
    var a=[-3.969683028665376e+01,2.209460984245205e+02,-2.759285104469687e+02,1.383577518672690e+02,-3.066479806614716e+01,2.506628277459239e+00];
    var b=[-5.447609879822406e+01,1.615858368580409e+02,-1.556989798598866e+02,6.680131188771972e+01,-1.328068155288572e+01];
    var c=[-7.784894002430293e-03,-3.223964580411365e-01,-2.400758277161838e+00,-2.549732539343734e+00,4.374664141464968e+00,2.938163982698783e+00];
    var d=[7.784695709041462e-03,3.224671290700398e-01,2.445134137142996e+00,3.754408661907416e+00];
    var pl=0.02425, ph=1-pl, q, r;
    if(p<pl){ q=Math.sqrt(-2*Math.log(p)); return (((((c[0]*q+c[1])*q+c[2])*q+c[3])*q+c[4])*q+c[5])/((((d[0]*q+d[1])*q+d[2])*q+d[3])*q+1); }
    if(p<=ph){ q=p-0.5; r=q*q; return (((((a[0]*r+a[1])*r+a[2])*r+a[3])*r+a[4])*r+a[5])*q/(((((b[0]*r+b[1])*r+b[2])*r+b[3])*r+b[4])*r+1); }
    q=Math.sqrt(-2*Math.log(1-p)); return -(((((c[0]*q+c[1])*q+c[2])*q+c[3])*q+c[4])*q+c[5])/((((d[0]*q+d[1])*q+d[2])*q+d[3])*q+1);
  }
  var dprime = (znorm(hitRate) - znorm(faRate)).toFixed(2);
  var acc = resp.length ? ((hits+cr)/resp.length*100).toFixed(0) : '—';

  $('frMetrics').innerHTML =
    '<div>HITS <span>'+hits+' / '+targets.length+'</span></div>'+
    '<div>FALSE ALARMS <span>'+fa+' / '+foils.length+'</span></div>'+
    '<div>ACCURACY <span>'+acc+'%</span></div>'+
    '<div>d′ <span>'+dprime+'</span></div>';

  // Serial-position curve: was each studied word (in study order) recognized?
  var recogByWord = {};
  resp.forEach(function(r){ if(r.old) recogByWord[r.word]= r.saidOld; });
  var barsEl=$('frSerialBars'), lblsEl=$('frSerialLabels');
  barsEl.innerHTML=''; lblsEl.innerHTML='';
  FR.studyList.forEach(function(w,i){
    var got = !!recogByWord[w];
    var bar=document.createElement('div');
    bar.className='fr-serial-bar'+(got?' recalled':'');
    bar.style.height = got ? '100%' : '20%';
    bar.title=w;
    barsEl.appendChild(bar);
    var lbl=document.createElement('div'); lbl.className='fr-serial-lbl'; lbl.textContent=i+1; lblsEl.appendChild(lbl);
  });

  // word list — studied words, marked recognized/missed
  var wlEl=$('frWordList'); wlEl.innerHTML='';
  FR.studyList.forEach(function(w){
    var got=!!recogByWord[w];
    var chip=document.createElement('div');
    chip.className='fr-result-chip'+(got?' recalled':' missed');
    chip.textContent=w;
    wlEl.appendChild(chip);
  });

  $('exportBtn').disabled=false;
  speak('Task complete. You correctly recognized '+hits+' of '+targets.length+' words.');
  try{ cognosRecordResult('RECALL','RECALL',{score:hits+'/'+targets.length+' hits, d′='+dprime, hits:hits, fa:fa, dprime:dprime},[]); updateSidebar(); }catch(e){}
  FR.active=false;
}

function exportRecallCSV() {
  var resp = FR.recogResponses || [];
  var rows = resp.map(function(r,i){ return [i+1, r.word, r.old?1:0, r.saidOld?1:0, r.correct?1:0, r.rt].join(','); });
  var csv = 'trial,word,was_on_list,responded_old,correct,rt_ms\n' + rows.join('\n');
  var blob = new Blob([csv],{type:'text/csv'});
  var a = document.createElement('a'); a.href=URL.createObjectURL(blob); a.download='cognos_recognition_'+Date.now()+'.csv'; a.click();
}


// ═══════════════════════════════════════════════════════════
// VISUAL RECOGNITION ENGINE
// ═══════════════════════════════════════════════════════════

// Pattern generator — draws an abstract geometric composition onto a canvas
// Each pattern is defined by a seed object {color, shapes, angles, positions}
const VRT_PALETTES = [
  ['#c8a84b','#4ec994','#5b9fda'],
  ['#e05c5c','#c8a84b','#d8e8f4'],
  ['#4ec994','#5b9fda','#c8a84b'],
  ['#5b9fda','#e05c5c','#4ec994'],
  ['#c8a84b','#e05c5c','#5b9fda'],
];

const VRT_SHAPE_TYPES = ['circle','rect','triangle','diamond','cross','ring'];

function vrtSeededRand(seed) {
  // deterministic PRNG (mulberry32)
  let s = seed >>> 0;
  return function() {
    s += 0x6D2B79F5;
    let t = Math.imul(s ^ s >>> 15, 1 | s);
    t = t + Math.imul(t ^ t >>> 7, 61 | t) ^ t;
    return ((t ^ t >>> 14) >>> 0) / 4294967296;
  };
}

function vrtDrawPattern(canvas, seed, size) {
  size = size || 88;
  canvas.width = size;
  canvas.height = size;
  const ctx = canvas.getContext('2d');
  ctx.clearRect(0, 0, size, size);
  ctx.fillStyle = '#0a1620';
  ctx.fillRect(0, 0, size, size);

  const rng = vrtSeededRand(seed.id);
  const palette = VRT_PALETTES[seed.paletteIdx % VRT_PALETTES.length];
  const n = 3 + Math.floor(rng() * 3); // 3-5 shapes

  for(let i = 0; i < n; i++) {
    const shapeType = VRT_SHAPE_TYPES[Math.floor(rng() * VRT_SHAPE_TYPES.length)];
    const color = palette[Math.floor(rng() * palette.length)];
    const x = 10 + rng() * (size - 20);
    const y = 10 + rng() * (size - 20);
    const r = 6 + rng() * (size * 0.18);
    const alpha = 0.55 + rng() * 0.45;

    ctx.save();
    ctx.globalAlpha = alpha;
    ctx.fillStyle = color;
    ctx.strokeStyle = color;
    ctx.lineWidth = 1.5;

    if(shapeType === 'circle') {
      ctx.beginPath();
      ctx.arc(x, y, r, 0, Math.PI * 2);
      ctx.fill();
    } else if(shapeType === 'ring') {
      ctx.beginPath();
      ctx.arc(x, y, r, 0, Math.PI * 2);
      ctx.stroke();
    } else if(shapeType === 'rect') {
      ctx.translate(x, y);
      ctx.rotate(rng() * Math.PI);
      ctx.fillRect(-r, -r * 0.6, r * 2, r * 1.2);
    } else if(shapeType === 'triangle') {
      ctx.translate(x, y);
      ctx.rotate(rng() * Math.PI * 2);
      ctx.beginPath();
      ctx.moveTo(0, -r);
      ctx.lineTo(r * 0.87, r * 0.5);
      ctx.lineTo(-r * 0.87, r * 0.5);
      ctx.closePath();
      ctx.fill();
    } else if(shapeType === 'diamond') {
      ctx.translate(x, y);
      ctx.rotate(rng() * 0.5);
      ctx.beginPath();
      ctx.moveTo(0, -r);
      ctx.lineTo(r * 0.6, 0);
      ctx.lineTo(0, r);
      ctx.lineTo(-r * 0.6, 0);
      ctx.closePath();
      ctx.fill();
    } else if(shapeType === 'cross') {
      ctx.translate(x, y);
      ctx.rotate(rng() * Math.PI / 4);
      const t = r * 0.28;
      ctx.fillRect(-r, -t, r * 2, t * 2);
      ctx.fillRect(-t, -r, t * 2, r * 2);
    }
    ctx.restore();
  }
}

function vrtMakeSeed(id) {
  return {
    id,
    paletteIdx: id % VRT_PALETTES.length,
    // label for CSV
    shapeLabel: VRT_SHAPE_TYPES[id % VRT_SHAPE_TYPES.length],
    colorLabel: ['amber','teal','blue','red','gold'][id % 5]
  };
}

// Generate foil: same palette, different seed id
function vrtMakeFoil(target) {
  // foil id is offset within same palette family for parametric similarity
  return {
    id: target.id + 1000 + Math.floor(Math.random() * 50),
    paletteIdx: target.paletteIdx,
    shapeLabel: target.shapeLabel,
    colorLabel: target.colorLabel
  };
}

// ── VRT State ───────────────────────────────────────────────
const VRT = {
  active: false,
  isPractice: false,
  phase: null,        // 'study'|'isi'|'test'|'results'
  studyItems: [],     // array of seed objects shown during study
  testItems: [],      // [{target, foil, targetSide}] one per trial
  trialIdx: 0,
  log: [],
  practiceLog: [],
  waiting: false,
  stimOn: 0,
  _timers: [],
  studyDuration: 4000,  // ms study phase display
  isiDuration: 3000,
  studyN: 6,            // items studied per block
  testN: 6              // forced-choice pairs
};

function startVRT(isPractice) {
  VRT.active = true;
  VRT.isPractice = isPractice;
  VRT.phase = 'study';
  VRT.trialIdx = 0;
  VRT.studyN = isPractice ? 4 : 6;
  VRT.testN  = isPractice ? 4 : 6;
  // CSR cleanup
  csrClearTimers();
  Object.assign(CSR,{active:false,isPractice:false,trial:0,log:[],practiceLog:[],waiting:false,responded:false,stimOn:0,_timers:[]});
  // P300 cleanup
  p300ClearTimers();
  Object.assign(P300,{active:false,isPractice:false,trial:0,log:[],practiceLog:[],waiting:false,responded:false,stimOn:0,_timers:[]});
  VRT._timers.forEach(t=>clearTimeout(t));
  VRT._timers = [];
  if(isPractice) VRT.practiceLog = []; else VRT.log = [];

  // build study set: unique random seeds
  const baseId = Math.floor(Math.random() * 500) * 10;
  VRT.studyItems = [];
  for(let i=0; i<VRT.studyN; i++) VRT.studyItems.push(vrtMakeSeed(baseId + i*3));

  // build test pairs: each target + one foil, randomise side
  VRT.testItems = VRT.studyItems.slice(0, VRT.testN).map(target => {
    const foil = vrtMakeFoil(target);
    const targetSide = Math.random() < 0.5 ? 0 : 1; // 0=left, 1=right
    return {target, foil, targetSide};
  });

  hideAll();
  $('vrtScreen').style.display = 'flex';
  $('vrtPracticeBanner').style.display = isPractice ? 'block' : 'none';
  $('vrtProgressBar').style.width = '0%';
  $('vrtFeedback').textContent = '';
  $('vrtFeedback').className = 'feedback';
  $('si-task').textContent = 'VRT' + (isPractice ? ' (PRAC)' : '');
  $('exportBtn').disabled = true;

  ['vrtStudyPhase','vrtISI','vrtTestPhase','vrtResultsPhase'].forEach(id=>$(id).style.display='none');

  vrtShowStudy();
}

function vrtShowStudy() {
  VRT.phase = 'study';
  $('vrtStudyPhase').style.display = 'flex';
  $('vrt-trial').textContent = `Study phase · ${VRT.studyN} patterns`;
  $('vrt-phase-badge').textContent = tr('STUDY');
  $('vrt-phase-badge').className = 'vrt-phase study';

  const grid = $('vrtStudyGrid');
  grid.innerHTML = '';
  const cols = VRT.studyN <= 4 ? 'g'+VRT.studyN : VRT.studyN <= 6 ? 'g3' : 'g4';
  grid.className = 'vrt-grid ' + cols;

  VRT.studyItems.forEach((seed, i) => {
    const cell = document.createElement('div');
    cell.className = 'vrt-cell';
    const canvas = document.createElement('canvas');
    vrtDrawPattern(canvas, seed, 88);
    cell.appendChild(canvas);

    // animate in with stagger
    cell.style.opacity = '0';
    cell.style.transition = 'opacity 0.3s';
    grid.appendChild(cell);
    VRT._timers.push(setTimeout(()=>{ cell.style.opacity='1'; }, 80*i));
  });

  // countdown timer display
  let elapsed = 0;
  const totalMs = VRT.studyDuration;
  const tickMs = 200;
  const timerEl = $('vrtStudyTimer');
  const tick = setInterval(()=>{
    elapsed += tickMs;
    const rem = Math.max(0, (totalMs-elapsed)/1000);
    timerEl.textContent = `${rem.toFixed(1)} s remaining`;
    if(elapsed >= totalMs){ clearInterval(tick); }
  }, tickMs);

  VRT._timers.push(setTimeout(()=>{
    clearInterval(tick);
    $('vrtStudyPhase').style.display = 'none';
    vrtShowISI();
  }, VRT.studyDuration));
}

function vrtShowISI() {
  VRT.phase = 'isi';
  $('vrtISI').style.display = 'flex';
  $('vrt-phase-badge').textContent = tr('RETENTION');
  $('vrt-phase-badge').className = 'vrt-phase isi';

  const total = VRT.isiDuration / 1000;
  let remaining = total;
  const ring = $('vrtCountdownRing');
  const txt  = $('vrtCountdownText');
  const circumference = 125.6;

  const tick = setInterval(()=>{
    remaining -= 0.25;
    const frac = Math.max(0, remaining/total);
    ring.style.strokeDashoffset = (circumference*(1-frac)).toFixed(2);
    txt.textContent = Math.ceil(remaining);
    if(remaining <= 0) { clearInterval(tick); }
  }, 250);

  VRT._timers.push(setTimeout(()=>{
    clearInterval(tick);
    $('vrtISI').style.display = 'none';
    vrtNextTest();
  }, VRT.isiDuration));
}

function vrtNextTest() {
  if(VRT.trialIdx >= VRT.testItems.length) { vrtShowResults(); return; }
  VRT.phase = 'test';
  $('vrtTestPhase').style.display = 'flex';

  const item = VRT.testItems[VRT.trialIdx];
  $('vrt-trial').textContent = `Test ${VRT.trialIdx+1} / ${VRT.testItems.length}`;
  $('vrt-phase-badge').textContent = tr('TEST');
  $('vrt-phase-badge').className = 'vrt-phase test';
  $('vrtProgressBar').style.width = (VRT.trialIdx/VRT.testItems.length*100).toFixed(1)+'%';
  $('vrtFeedback').textContent = '';
  $('vrtFeedback').className = 'feedback';
  $('vrtTestQuestion').textContent = 'Which pattern did you see during study?';

  const testGrid = $('vrtTestGrid');
  testGrid.innerHTML = '';
  testGrid.className = 'vrt-test-grid pair';

  const pair = item.targetSide === 0
    ? [item.target, item.foil]
    : [item.foil,   item.target];

  pair.forEach((seed, sideIdx) => {
    const cell = document.createElement('div');
    cell.className = 'vrt-test-cell';
    const canvas = document.createElement('canvas');
    vrtDrawPattern(canvas, seed, 110);
    cell.appendChild(canvas);
    cell.onclick = () => vrtRespond(sideIdx, item);
    testGrid.appendChild(cell);
  });

  triggerFlash();
  VRT.waiting = true;
  VRT.stimOn = performance.now();
}

function vrtRespond(chosenSide, item) {
  if(!VRT.waiting) return;
  VRT.waiting = false;
  const rt = performance.now() - VRT.stimOn;
  const correct = chosenSide === item.targetSide;

  const entry = {
    trial: VRT.trialIdx + 1,
    targetSide: item.targetSide === 0 ? 'left' : 'right',
    correct, rt,
    studyShape: item.target.shapeLabel, studyColor: item.target.colorLabel,
    foilShape:  item.foil.shapeLabel,   foilColor:  item.foil.colorLabel
  };
  if(VRT.isPractice) VRT.practiceLog.push(entry); else VRT.log.push(entry);

  // flash chosen cell
  const cells = $('vrtTestGrid').children;
  cells[chosenSide].classList.add(correct ? 'flash-ok' : 'flash-err');

  const fb = $('vrtFeedback');
  fb.textContent = `${rt.toFixed(0)} ms  ${correct ? '✓ correct' : '✗ wrong'}`;
  fb.className = 'feedback ' + (correct ? 'ok' : 'err');

  // update sidebar
  const log = VRT.isPractice ? VRT.practiceLog : VRT.log;
  const hits = log.filter(r=>r.correct).length;
  $('si-acc').textContent = (hits/log.length*100).toFixed(0)+'%';
  $('si-trial').textContent = `${VRT.trialIdx+1}/${VRT.testItems.length}`;

  VRT.trialIdx++;
  VRT._timers.push(setTimeout(()=>{
    $('vrtTestPhase').style.display = 'none';
    vrtNextTest();
  }, 500));
}

function vrtShowResults() {
  $('vrtProgressBar').style.width = '100%';
  $('vrtTestPhase').style.display = 'none';
  $('vrtResultsPhase').style.display = 'flex';

  const log = VRT.isPractice ? VRT.practiceLog : VRT.log;
  if(VRT.isPractice) {
    // go to practice complete screen
    const acc = log.length ? (log.filter(r=>r.correct).length/log.length*100).toFixed(0) : 0;
    const avgRT = log.filter(r=>r.rt!=null).length ?
      (log.filter(r=>r.rt!=null).reduce((a,b)=>a+b.rt,0)/log.filter(r=>r.rt!=null).length).toFixed(0) : '—';
    hideAll();
    $('pcStats').innerHTML=`TRIALS &nbsp;<span>${log.length}</span> &nbsp;&nbsp; ACC &nbsp;<span>${acc}%</span> &nbsp;&nbsp; AVG RT &nbsp;<span>${avgRT} ms</span>`;
    $('practiceComplete').style.display='flex';
    VRT.active = false;
    return;
  }

  VRT.active = false;
  $('exportBtn').disabled = false;

  const hits = log.filter(r=>r.correct).length;
  const fa   = log.filter(r=>!r.correct).length;
  const rts  = log.filter(r=>r.rt!=null&&r.correct).map(r=>r.rt);
  const avgRT = rts.length ? (rts.reduce((a,b)=>a+b,0)/rts.length).toFixed(0) : '—';
  const hr = log.length ? hits/log.length : 0;
  const far = log.length ? fa/log.length : 0;
  const dprime = (hr>0&&far<1) ?
    (normInv(Math.min(0.999,hr))-normInv(Math.max(0.001,far))).toFixed(2) : '—';

  $('vrtMetrics').innerHTML = `
    <div>HITS <span>${hits}/${log.length}</span></div>
    <div>ACCURACY <span>${(hr*100).toFixed(0)}%</span></div>
    <div>d' <span>${dprime}</span></div>
    <div>AVG RT <span>${avgRT} ms</span></div>`;

  // per-trial result rows
  const grid = $('vrtResultsGrid');
  grid.innerHTML = '';
  grid.style.cssText = 'display:grid;gap:6px;width:100%;';
  log.forEach((entry, i) => {
    const item = VRT.testItems[i];
    if(!item) return;
    const row = document.createElement('div');
    row.className = 'vrt-result-row';

    // mini target canvas
    const c = document.createElement('canvas');
    c.className = 'vrt-mini-canvas';
    vrtDrawPattern(c, item.target, 36);
    row.appendChild(c);

    const lbl = document.createElement('div');
    lbl.className = 'vrt-result-label';
    lbl.textContent = `Trial ${entry.trial}`;
    row.appendChild(lbl);

    const rt = document.createElement('div');
    rt.className = 'vrt-rt-val';
    rt.textContent = entry.rt ? entry.rt.toFixed(0)+' ms' : '—';
    row.appendChild(rt);

    const badge = document.createElement('div');
    badge.className = 'vrt-result-badge ' + (entry.correct ? 'ok' : 'err');
    badge.textContent = entry.correct ? '✓ hit' : '✗ miss';
    row.appendChild(badge);

    grid.appendChild(row);
  });
}

function exportVrtCSV() {
  const log = VRT.log;
  if(!log.length) return;
  const header = 'trial,targetSide,correct,rt_ms,studyShape,studyColor,foilShape,foilColor\n';
  const rows = log.map(r=>[r.trial,r.targetSide,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):'',r.studyShape,r.studyColor,r.foilShape,r.foilColor].join(','));
  const blob = new Blob([header+rows.join('\n')],{type:'text/csv'});
  const a=document.createElement('a'); a.href=URL.createObjectURL(blob);
  a.download='cognos_vrt_'+Date.now()+'.csv'; a.click();
}

// ═══════════════════════════════════════════════════════════
// MIC VALIDATION ENGINE
// ═══════════════════════════════════════════════════════════
const MV = {
  onPass: null,          // callback when user clicks proceed
  audioCtx: null,
  analyser: null,
  micStream: null,
  volAnimId: null,
  recognition: null,
  volBars: null,
  peakLevel: 0,
  levelPassed: false,
  recogPassed: false,
  testWords: ['BRIDGE','GARDEN','CANDLE','HAMMER','SILVER','WINDOW'],
  currentWord: null,
  heardWords: [],
  step: 1,               // 1=permission 2=level 3=recog
  wordTimeouts: []
};

function showMicValidation(onPass) {
  MV.onPass = onPass;
  MV.peakLevel = 0;
  MV.levelPassed = false;
  MV.recogPassed = false;
  MV.heardWords = [];
  MV.step = 1;
  MV.wordTimeouts.forEach(t=>clearTimeout(t));
  MV.wordTimeouts = [];

  // pick a random test word
  MV.currentWord = MV.testWords[Math.floor(Math.random()*MV.testWords.length)];

  // cache vol bars
  MV.volBars = Array.from({length:12},(_,i)=>document.getElementById('mvvb'+i));

  hideAll();
  $('micValidScreen').style.display = 'flex';

  // reset UI
  mvSetStep(1,'active');
  mvSetStep(2,'');
  mvSetStep(3,'');
  $('mvStep1Sub').textContent = 'Requesting microphone access…';
  $('mvLevelStatus').textContent = 'waiting for signal…';
  $('mvLevelStatus').className = 'micv-status';
  $('mvPromptWord').textContent = '—';
  $('mvHeardRow').innerHTML = '';
  $('mvRecogStatus').textContent = 'waiting…';
  $('mvRecogStatus').className = 'micv-status';
  $('mvOverallStatus').textContent = '';
  $('mvOverallStatus').className = 'micv-status';
  $('mvProceedBtn').disabled = true;

  mvStep1();
}

function mvSetStep(n, state) {
  const el = $('mvStep'+n+'Num');
  if(!el) return;
  el.className = 'micv-step-num' + (state ? ' '+state : '');
  el.textContent = state==='done' ? '✓' : state==='fail' ? '✗' : n;
}

// ── Step 1: request permission ────────────────────────────
async function mvStep1() {
  try {
    const stream = await navigator.mediaDevices.getUserMedia({audio:true, video:false});
    MV.micStream = stream;
    mvSetStep(1,'done');
    $('mvStep1Sub').textContent = 'Microphone access granted.';
    mvStep2(stream);
  } catch(e) {
    mvSetStep(1,'fail');
    $('mvStep1Sub').textContent = 'Denied: ' + e.message;
    $('mvOverallStatus').textContent = 'Microphone permission is required for voice input.';
    $('mvOverallStatus').className = 'micv-status err';
  }
}

// ── Step 2: level check ───────────────────────────────────
function mvStep2(stream) {
  mvSetStep(2,'active');
  try {
    MV.audioCtx = new AudioContext();
    MV.analyser = MV.audioCtx.createAnalyser();
    MV.analyser.fftSize = 256;
    const src = MV.audioCtx.createMediaStreamSource(stream);
    src.connect(MV.analyser);
    mvAnimLevel();
  } catch(e) {
    mvSetStep(2,'fail');
    $('mvLevelStatus').textContent = 'Audio analysis failed: '+e.message;
    $('mvLevelStatus').className = 'micv-status err';
  }
}

function mvAnimLevel() {
  if(!MV.analyser) return;
  const data = new Uint8Array(MV.analyser.frequencyBinCount);
  MV.analyser.getByteFrequencyData(data);
  // RMS of lower half (voice frequencies)
  const slice = data.slice(0, data.length/2);
  const rms = Math.sqrt(slice.reduce((s,v)=>s+v*v,0)/slice.length);
  const norm = Math.min(1, rms/80);

  MV.volBars.forEach((b,i) => {
    const thresh = (i+1)/MV.volBars.length;
    const lit = norm > thresh * 0.6;
    const h = lit ? Math.max(4, norm * 28) : 4;
    b.style.height = h.toFixed(0)+'px';
    b.style.background = norm > 0.6 ? 'var(--ok)' : norm > 0.25 ? 'var(--gold)' : '#1a2f44';
  });

  if(norm > MV.peakLevel) MV.peakLevel = norm;

  if(!MV.levelPassed && norm > 0.25) {
    MV.levelPassed = true;
    mvSetStep(2,'done');
    $('mvLevelStatus').textContent = 'Signal detected — level looks good.';
    $('mvLevelStatus').className = 'micv-status ok';
    // move to step 3 after a beat
    MV.wordTimeouts.push(setTimeout(mvStep3, 700));
  } else if(!MV.levelPassed) {
    $('mvLevelStatus').textContent = norm > 0.05 ? 'Low signal — speak louder or move closer to mic' : 'No signal — check mic connection';
    $('mvLevelStatus').className = 'micv-status ' + (norm > 0.05 ? 'warn' : '');
  }

  MV.volAnimId = requestAnimationFrame(mvAnimLevel);
}

// ── Step 3: recognition test ──────────────────────────────
function mvStep3() {
  mvSetStep(3,'active');
  $('mvPromptWord').textContent = MV.currentWord;
  $('mvRecogStatus').textContent = 'Listening — say the word above…';
  $('mvRecogStatus').className = 'micv-status warn';

  const SpeechRec = window.SpeechRecognition || window.webkitSpeechRecognition;
  if(!SpeechRec) {
    mvSetStep(3,'fail');
    $('mvRecogStatus').textContent = 'Web Speech API not supported in this browser.';
    $('mvRecogStatus').className = 'micv-status err';
    mvFinish(false, 'Recognition API unavailable — try Chrome or Edge.');
    return;
  }

  const r = new SpeechRec();
  r.lang = window._srLocale || 'en-US';
  r.continuous = false;
  r.interimResults = true;
  r.maxAlternatives = 5;
  MV.recognition = r;

  // show up to 3 attempts
  let attempts = 0;
  const maxAttempts = 3;

  r.onresult = (e) => {
    const finals = [], interims = [];
    for(let i=0;i<e.results.length;i++){
      for(let j=0;j<e.results[i].length;j++){
        const t = e.results[i][j].transcript.trim().toUpperCase();
        if(e.results[i].isFinal) finals.push(t); else interims.push(t);
      }
    }
    // show what was heard
    const heard = [...finals,...interims].join(', ');
    if(heard) $('mvRecogStatus').textContent = 'Heard: ' + heard;

    // check all alternatives for a match (exact or 1-edit)
    const allTokens = [...finals,...interims].join(' ').split(/\s+/);
    for(const tok of allTokens) {
      if(!tok) continue;
      const dist = levenshtein(tok, MV.currentWord);
      const matched = dist <= (MV.currentWord.length >= 6 ? 2 : 1);
      if(matched && !MV.recogPassed) {
        MV.recogPassed = true;
        const chip = document.createElement('div');
        chip.className = 'micv-heard-chip match';
        chip.textContent = tok + ' ✓';
        $('mvHeardRow').appendChild(chip);
        mvSetStep(3,'done');
        $('mvRecogStatus').textContent = 'Word recognised successfully!';
        $('mvRecogStatus').className = 'micv-status ok';
        try{ r.stop(); }catch(ex){}
        mvFinish(true, 'All checks passed — ready to proceed.');
        return;
      }
    }

    // non-matching finals — show as nomatch chip and try again
    finals.forEach(f => {
      const chip = document.createElement('div');
      chip.className = 'micv-heard-chip nomatch';
      chip.textContent = f;
      $('mvHeardRow').appendChild(chip);
    });
  };

  r.onerror = (e) => {
    if(e.error === 'no-speech') {
      attempts++;
      if(attempts < maxAttempts) { try{ r.start(); }catch(ex){} return; }
      mvSetStep(3,'fail');
      $('mvRecogStatus').textContent = 'No speech detected after '+maxAttempts+' attempts.';
      $('mvRecogStatus').className = 'micv-status err';
      mvFinish(false, 'Recognition failed — check mic and browser settings.');
    } else {
      mvSetStep(3,'fail');
      $('mvRecogStatus').textContent = 'Error: '+e.error;
      $('mvRecogStatus').className = 'micv-status err';
      mvFinish(false, 'Recognition error: '+e.error);
    }
  };

  r.onend = () => {
    if(!MV.recogPassed) {
      attempts++;
      if(attempts < maxAttempts) {
        // pick a new word and retry
        MV.currentWord = MV.testWords[Math.floor(Math.random()*MV.testWords.length)];
        $('mvPromptWord').textContent = MV.currentWord;
        $('mvRecogStatus').textContent = `Attempt ${attempts+1}/${maxAttempts} — say the new word`;
        $('mvRecogStatus').className = 'micv-status warn';
        MV.wordTimeouts.push(setTimeout(()=>{ try{ r.start(); }catch(ex){} }, 400));
      } else if(!MV.recogPassed) {
        mvSetStep(3,'fail');
        $('mvRecogStatus').textContent = 'Could not recognise speech after '+maxAttempts+' attempts.';
        $('mvRecogStatus').className = 'micv-status err';
        mvFinish(false, 'Recognition failed — you may still proceed but voice input may be unreliable.');
      }
    }
  };

  MV.wordTimeouts.push(setTimeout(()=>{ try{ r.start(); }catch(ex){
    mvSetStep(3,'fail');
    $('mvRecogStatus').textContent = 'Could not start recogniser: '+ex.message;
    $('mvRecogStatus').className = 'micv-status err';
    mvFinish(false, 'Could not start speech recognition.');
  }}, 300));
}

function mvFinish(passed, msg) {
  $('mvOverallStatus').textContent = msg;
  $('mvOverallStatus').className = 'micv-status '+(passed?'ok':'warn');
  $('mvProceedBtn').disabled = false;
  // stop level animation
  if(MV.volAnimId){ cancelAnimationFrame(MV.volAnimId); MV.volAnimId=null; }
}

function mvProceed() {
  mvCleanup();
  if(MV.onPass) MV.onPass();
}

function mvRetry() {
  mvCleanup();
  MV.wordTimeouts.forEach(t=>clearTimeout(t));
  MV.wordTimeouts = [];
  showMicValidation(MV.onPass);
}

function mvSkip() {
  mvCleanup();
  if(MV.onPass) MV.onPass();
}

function mvCleanup() {
  if(MV.volAnimId){ cancelAnimationFrame(MV.volAnimId); MV.volAnimId=null; }
  if(MV.recognition){ try{ MV.recognition.stop(); }catch(e){} MV.recognition=null; }
  // keep MV.micStream alive — pass it to main Speech module
  if(MV.micStream && !Speech.micStream) {
    Speech.micStream = MV.micStream;
    if(MV.audioCtx && !Speech.audioCtx){
      Speech.audioCtx = MV.audioCtx;
      Speech.analyser = MV.analyser;
      MV.audioCtx = null; MV.analyser = null;
    }
  } else if(MV.micStream) {
    // already have a stream — close the validation one
    if(MV.audioCtx){ try{ MV.audioCtx.close(); }catch(e){} MV.audioCtx=null; }
    MV.micStream = null;
  }
}


// ═══════════════════════════════════════════════════════════
// CARD SORTING ENGINE (WCST-style)
// ═══════════════════════════════════════════════════════════
const WCST_SHAPES   = ['▲','●','■','✦'];
const WCST_COLORS   = ['red','green','blue','yellow'];
const WCST_NUMS     = [1,2,3,4];
const WCST_RULES    = ['color','shape','number'];
const WCST_RUNS_GOAL = 6;
const WCST_CORRECT_TO_SHIFT = 10;
const WCST_MAX_TRIALS = 64;

// Four fixed target cards (one of each number, each shape, each color in canonical order)
const WCST_TARGETS = [
  {color:'red',   shape:'▲', num:1},
  {color:'green', shape:'●', num:2},
  {color:'blue',  shape:'■', num:3},
  {color:'yellow',shape:'✦', num:4},
];

const WCST = {
  active: false,
  isPractice: false,
  trial: 0,
  maxTrials: WCST_MAX_TRIALS,
  rule: null,
  prevRule: null,
  runsComplete: 0,
  consecutive: 0,
  waiting: false,
  stimulus: null,
  log: [],
  practiceLog: [],
  _feedbackTimer: null
};

function wcstRandomRule(exclude) {
  const opts = WCST_RULES.filter(r => r !== exclude);
  return opts[Math.floor(Math.random() * opts.length)];
}

function wcstMakeStimulus() {
  // random card that isn't identical to any target
  let card;
  do {
    card = {
      color: WCST_COLORS[Math.floor(Math.random() * 4)],
      shape: WCST_SHAPES[Math.floor(Math.random() * 4)],
      num:   Math.floor(Math.random() * 4) + 1
    };
  } while(WCST_TARGETS.some(t => t.color===card.color && t.shape===card.shape && t.num===card.num));
  return card;
}

function wcstCorrectTarget(stimulus, rule) {
  return WCST_TARGETS.findIndex(t => t[rule] === stimulus[rule]);
}

function startWCST(isPractice) {
  WCST.active = true;
  WCST.isPractice = isPractice;
  WCST.trial = 0;
  WCST.runsComplete = 0;
  WCST.consecutive = 0;
  WCST.waiting = false;
  WCST.rule = wcstRandomRule(null);
  WCST.prevRule = null;
  WCST.maxTrials = isPractice ? 12 : WCST_MAX_TRIALS;
  if(isPractice) WCST.practiceLog = []; else WCST.log = [];

  hideAll();
  $('wcstScreen').style.display = 'flex';
  $('wcstPracticeBanner').style.display = isPractice ? 'block' : 'none';
  $('wcstFeedback').textContent = '';
  $('wcstFeedback').className = 'feedback';
  $('wcstPersevStrip').innerHTML = '';
  $('wcst-persev-count').textContent = 'Persev: 0';
  $('wcst-runs').textContent = 'Runs: 0';
  $('exportBtn').disabled = true;
  $('si-task').textContent = 'WCST' + (isPractice ? ' (PRAC)' : '');
  $('wcstRuleHint').textContent = 'Discover the sorting rule by trial and error';

  wcstRenderTargets();
  wcstNextTrial();
  speak(isPractice ? 'Practice card sorting.' : 'Card sorting task. Find the rule.');
}

function wcstRenderTargets() {
  const el = $('wcstTargets');
  el.innerHTML = '';
  WCST_TARGETS.forEach((t, i) => {
    const card = wcstMakeCard(t, true, i);
    el.appendChild(card);
  });
}

// Live "drag" arrow for Card Sort: an arrow anchored at the stimulus card that
// follows the pointer while choosing, then locks onto the chosen target.
var _wcstArrow = { svg:null, line:null, marker:null, active:false, moveHandler:null };
function wcstArrowEnsure(){
  var screen = document.getElementById('wcstScreen');
  if(!screen) return null;
  if(_wcstArrow.svg && _wcstArrow.svg.parentNode===screen) return _wcstArrow;
  var ns='http://www.w3.org/2000/svg';
  var svg=document.createElementNS(ns,'svg');
  svg.style.cssText='position:absolute;left:0;top:0;width:100%;height:100%;pointer-events:none;z-index:50;';
  var defs=document.createElementNS(ns,'defs');
  var marker=document.createElementNS(ns,'marker');
  marker.setAttribute('id','wcstArrowHead'); marker.setAttribute('markerWidth','10'); marker.setAttribute('markerHeight','10');
  marker.setAttribute('refX','7'); marker.setAttribute('refY','3'); marker.setAttribute('orient','auto'); marker.setAttribute('markerUnits','strokeWidth');
  var mpath=document.createElementNS(ns,'path'); mpath.setAttribute('d','M0,0 L8,3 L0,6 Z'); mpath.setAttribute('fill','#c8a84b');
  marker.appendChild(mpath); defs.appendChild(marker); svg.appendChild(defs);
  var line=document.createElementNS(ns,'line');
  line.setAttribute('stroke','#c8a84b'); line.setAttribute('stroke-width','3'); line.setAttribute('stroke-linecap','round');
  line.setAttribute('stroke-dasharray','7 5'); line.setAttribute('marker-end','url(#wcstArrowHead)');
  line.style.opacity='0';
  svg.appendChild(line);
  screen.appendChild(svg);
  _wcstArrow.svg=svg; _wcstArrow.line=line; _wcstArrow.marker=mpath;
  return _wcstArrow;
}
function wcstArrowColor(c){
  if(_wcstArrow.line) _wcstArrow.line.setAttribute('stroke',c);
  if(_wcstArrow.marker) _wcstArrow.marker.setAttribute('fill',c);
}
function wcstArrowStart(){
  var a=wcstArrowEnsure(); if(!a) return;
  a.active=true; wcstArrowColor('#c8a84b'); a.line.setAttribute('stroke-dasharray','7 5');
  if(a.moveHandler) document.removeEventListener('mousemove',a.moveHandler);
  a.moveHandler=function(e){
    if(!a.active) return;
    var sc=document.getElementById('wcstScreen'); var st=document.getElementById('wcstStimulus');
    if(!sc||!st) return;
    var sr=sc.getBoundingClientRect(), fr=st.getBoundingClientRect();
    var x1=fr.left+fr.width/2-sr.left, y1=fr.top+fr.height/2-sr.top;
    var x2=e.clientX-sr.left, y2=e.clientY-sr.top;
    a.line.setAttribute('x1',x1); a.line.setAttribute('y1',y1);
    a.line.setAttribute('x2',x2); a.line.setAttribute('y2',y2);
    a.line.style.opacity='0.9';
  };
  document.addEventListener('mousemove',a.moveHandler);
}
function wcstArrowLock(toEl, correct){
  var a=wcstArrowEnsure(); if(!a) return;
  a.active=false;
  if(a.moveHandler){ document.removeEventListener('mousemove',a.moveHandler); a.moveHandler=null; }
  var sc=document.getElementById('wcstScreen'), st=document.getElementById('wcstStimulus');
  if(!sc||!st||!toEl){ if(a.line) a.line.style.opacity='0'; return; }
  var sr=sc.getBoundingClientRect(), fr=st.getBoundingClientRect(), tr=toEl.getBoundingClientRect();
  var color=correct?'#4ec994':'#e05c5c'; wcstArrowColor(color);
  a.line.setAttribute('stroke-dasharray','none');
  a.line.setAttribute('x1',fr.left+fr.width/2-sr.left); a.line.setAttribute('y1',fr.top+fr.height/2-sr.top);
  a.line.setAttribute('x2',tr.left+tr.width/2-sr.left); a.line.setAttribute('y2',tr.top+tr.height/2-sr.top);
  a.line.style.transition='opacity 0.4s ease'; a.line.style.opacity='0.95';
  setTimeout(function(){ if(a.line){ a.line.style.opacity='0'; } }, 450);
  setTimeout(function(){ if(a.line){ a.line.style.transition=''; } }, 950);
}
function wcstMakeCard(data, isTarget, idx) {
  const card = document.createElement('div');
  card.className = 'wcst-card wcst-c-' + data.color + (isTarget ? '' : ' stimulus');
  if(isTarget) {
    card.classList.add('selectable');
    card.onclick = () => wcstSort(idx);
  }
  // stack num symbols
  const symWrap = document.createElement('div');
  symWrap.className = 'wcst-card-shape';
  symWrap.style.display = 'flex';
  symWrap.style.flexDirection = 'column';
  symWrap.style.alignItems = 'center';
  symWrap.style.lineHeight = '1.1';
  symWrap.style.fontSize = data.num > 2 ? '1.3rem' : '1.7rem';
  for(let i = 0; i < data.num; i++) {
    const s = document.createElement('span');
    s.textContent = data.shape;
    symWrap.appendChild(s);
  }
  card.appendChild(symWrap);
  return card;
}

function wcstNextTrial() {
  if(WCST.trial >= WCST.maxTrials || WCST.runsComplete >= WCST_RUNS_GOAL) {
    wcstEnd(); return;
  }
  WCST.trial++;
  WCST.stimulus = wcstMakeStimulus();
  WCST.waiting = true;

  $('wcst-trial').textContent = `Trial ${WCST.trial}/${WCST.maxTrials}`;
  $('wcstProgressBar').style.width = ((WCST.trial-1)/WCST.maxTrials*100).toFixed(1)+'%';
  $('wcstFeedback').textContent = '';
  $('wcstFeedback').className = 'feedback';

  const stimEl = $('wcstStimulus');
  stimEl.innerHTML = '';
  stimEl.appendChild(wcstMakeCard(WCST.stimulus, false, -1));
  triggerFlash();   // photic marker at card onset (was missing for WCST)
  wcstArrowStart();  // live arrow follows the pointer toward the target choice
}

function wcstSort(targetIdx) {
  if(!WCST.waiting) return;
  WCST.waiting = false;

  const correctIdx = wcstCorrectTarget(WCST.stimulus, WCST.rule);
  const correct = targetIdx === correctIdx;

  // Perseverative error: would have been correct under prevRule but wrong under current
  let isPersev = false;
  if(!correct && WCST.prevRule) {
    const prevCorrectIdx = wcstCorrectTarget(WCST.stimulus, WCST.prevRule);
    isPersev = (targetIdx === prevCorrectIdx);
  }

  const entry = {
    trial: WCST.trial,
    rule: WCST.rule,
    stimColor: WCST.stimulus.color,
    stimShape: WCST.stimulus.shape,
    stimNum: WCST.stimulus.num,
    targetChosen: targetIdx,
    targetCorrect: correctIdx,
    correct,
    isPersev,
    runsComplete: WCST.runsComplete
  };
  if(WCST.isPractice) WCST.practiceLog.push(entry); else WCST.log.push(entry);

  // Flash chosen target card
  const targetCards = $('wcstTargets').children;
  if(targetCards[targetIdx]) {
    wcstArrowLock(targetCards[targetIdx], correct);
    targetCards[targetIdx].classList.add(correct ? 'flash-ok' : 'flash-err');
    setTimeout(() => {
      targetCards[targetIdx].classList.remove('flash-ok','flash-err');
    }, 350);
  }

  // persev dot
  const dot = document.createElement('div');
  dot.className = 'wcst-persev-dot' + (correct ? ' ok' : isPersev ? ' persev' : ' err');
  $('wcstPersevStrip').appendChild(dot);

  // feedback
  const fb = $('wcstFeedback');
  fb.textContent = correct ? '✓ correct' : isPersev ? '✗ perseverative error' : '✗ wrong';
  fb.className = 'feedback ' + (correct ? 'ok' : 'err');
  if(isPersev) fb.style.color = 'var(--gold)'; else fb.style.color = '';

  // update counts
  if(correct) WCST.consecutive++; else WCST.consecutive = 0;
  const log = WCST.isPractice ? WCST.practiceLog : WCST.log;
  const totalCorrect = log.filter(r=>r.correct).length;
  const totalErrors  = log.filter(r=>!r.correct).length;
  const totalPersev  = log.filter(r=>r.isPersev).length;
  $('wcst-correct').textContent = totalCorrect;
  $('wcst-errors').textContent  = totalErrors;
  $('wcst-consec').textContent  = WCST.consecutive;
  $('wcst-persev-count').textContent = 'Persev: ' + totalPersev;

  speak(correct ? 'correct' : 'wrong');

  // Rule shift after WCST_CORRECT_TO_SHIFT consecutive correct
  if(WCST.consecutive >= WCST_CORRECT_TO_SHIFT) {
    WCST.runsComplete++;
    WCST.consecutive = 0;
    WCST.prevRule = WCST.rule;
    WCST.rule = wcstRandomRule(WCST.rule);
    $('wcst-runs').textContent = 'Runs: ' + WCST.runsComplete;
    $('wcstRuleHint').textContent = 'Rule has changed — discover the new rule';
    speak('Rule changed.');
  }

  $('si-trial').textContent = `${WCST.trial}/${WCST.maxTrials}`;
  $('si-acc').textContent = log.length ? (totalCorrect/log.length*100).toFixed(0)+'%' : '—';

  WCST._feedbackTimer = setTimeout(wcstNextTrial, 500);
}

function wcstEnd() {
  $('wcstProgressBar').style.width = '100%';
  clearTimeout(WCST._feedbackTimer);
  WCST.active = false;
  // Stop the live sort arrow and detach its pointer listener.
  try{ if(_wcstArrow){ _wcstArrow.active=false; if(_wcstArrow.moveHandler){ document.removeEventListener('mousemove',_wcstArrow.moveHandler); _wcstArrow.moveHandler=null; } if(_wcstArrow.line) _wcstArrow.line.style.opacity='0'; } }catch(_){}

  const log = WCST.isPractice ? WCST.practiceLog : WCST.log;
  const correct = log.filter(r=>r.correct).length;
  const persev  = log.filter(r=>r.isPersev).length;
  const acc = log.length ? (correct/log.length*100).toFixed(0) : 0;

  if(WCST.isPractice) {
    hideAll();
    $('pcStats').innerHTML = `TRIALS &nbsp;<span>${log.length}</span> &nbsp;&nbsp; ACC &nbsp;<span>${acc}%</span> &nbsp;&nbsp; PERSEV &nbsp;<span>${persev}</span>`;
    $('practiceComplete').style.display = 'flex';
    speak('Practice complete. Ready to begin?');
  } else {
    $('exportBtn').disabled = false;
    const fb = $('wcstFeedback');
    fb.textContent = `DONE · ${WCST.runsComplete} runs · acc ${acc}% · persev ${persev}`;
    fb.className = 'feedback ok';
    speak(`Card sorting complete. ${WCST.runsComplete} runs completed. Perseverative errors: ${persev}.`);
  }
}

// ═══════════════════════════════════════════════════════════
// SESSION STATS CHART
// ═══════════════════════════════════════════════════════════
function showStats() {
  hideAll();
  $('statsScreen').style.display = 'flex';
  renderStats();
}

function renderStats() {
  const el = $('statsContent');
  el.innerHTML = '';

  const sections = [];

  // ── GNG ──────────────────────────────────────────────────
  if(S.task === 'GNG' && S.log.length) {
    const log = S.log;
    const hits = log.filter(r=>r.stimType==='GO'&&r.correct).length;
    const goTotal = log.filter(r=>r.stimType==='GO').length;
    const fa = log.filter(r=>r.stimType==='NOGO'&&!r.correct&&r.rt!==null).length;
    const nogoTotal = log.filter(r=>r.stimType==='NOGO').length;
    const rts = log.filter(r=>r.rt!==null&&r.stimType==='GO').map(r=>r.rt);
    const avgRT = rts.length ? (rts.reduce((a,b)=>a+b,0)/rts.length).toFixed(0) : '—';
    sections.push(statsSection('GO / NO-GO', [
      {label:'HIT RATE', value: goTotal?(hits/goTotal*100).toFixed(0)+'%':'—', sub:`${hits}/${goTotal} go trials`},
      {label:'FALSE ALARM', value: nogoTotal?(fa/nogoTotal*100).toFixed(0)+'%':'—', sub:`${fa}/${nogoTotal} nogo trials`},
      {label:'AVG GO RT', value: avgRT+' ms', sub:'correct go responses'},
      {label:'TRIALS', value: log.length, sub:'total'}
    ], [
      {label:'HIT RATE', pct: goTotal?hits/goTotal:0, cls:'ok'},
      {label:'FA RATE',  pct: nogoTotal?fa/nogoTotal:0, cls:'err'},
    ], rts));
  }

  // ── NBACK ─────────────────────────────────────────────────
  if(S.task === 'NBACK' && S.log.length) {
    const log = S.log;
    const hits = log.filter(r=>r.stimType.includes('MATCH')&&r.correct).length;
    const matchTotal = log.filter(r=>r.stimType.includes('MATCH')).length;
    const fa = log.filter(r=>r.stimType.includes('NON')&&!r.correct&&r.rt!==null).length;
    const nonTotal = log.filter(r=>r.stimType.includes('NON')).length;
    const rts = log.filter(r=>r.rt!==null).map(r=>r.rt);
    const avgRT = rts.length ? (rts.reduce((a,b)=>a+b,0)/rts.length).toFixed(0) : '—';
    const dprime = (hits/Math.max(matchTotal,1) > 0 && fa/Math.max(nonTotal,1) < 1) ?
      (normInv(hits/Math.max(matchTotal,1)) - normInv(fa/Math.max(nonTotal,1))).toFixed(2) : '—';
    sections.push(statsSection('N-BACK', [
      {label:"HIT RATE", value: matchTotal?(hits/matchTotal*100).toFixed(0)+'%':'—', sub:`${hits}/${matchTotal} matches`},
      {label:'FA RATE',  value: nonTotal?(fa/nonTotal*100).toFixed(0)+'%':'—', sub:`${fa}/${nonTotal} non-matches`},
      {label:"d'",       value: dprime, sub:'sensitivity index'},
      {label:'AVG RT',   value: avgRT+' ms', sub:'all responses'}
    ], [
      {label:'HIT RATE', pct: matchTotal?hits/matchTotal:0, cls:'ok'},
      {label:'FA RATE',  pct: nonTotal?fa/nonTotal:0,        cls:'err'},
    ], rts));
  }

  // ── SPATIAL ───────────────────────────────────────────────
  if(S.task === 'SPATIAL' && S.log.length) {
    const log = S.log;
    const correct = log.filter(r=>r.correct).length;
    const rts = log.filter(r=>r.rt!==null&&r.correct).map(r=>r.rt);
    const avgRT = rts.length ? (rts.reduce((a,b)=>a+b,0)/rts.length).toFixed(0) : '—';
    const minRT = rts.length ? Math.min(...rts).toFixed(0) : '—';
    sections.push(statsSection('SPATIAL ATTENTION', [
      {label:'ACCURACY',  value: (correct/log.length*100).toFixed(0)+'%', sub:`${correct}/${log.length}`},
      {label:'AVG RT',    value: avgRT+' ms', sub:'correct trials'},
      {label:'BEST RT',   value: minRT+' ms', sub:'fastest correct'},
      {label:'MISSES',    value: log.filter(r=>r.response==='TIMEOUT').length, sub:'timeouts'}
    ], [
      {label:'ACCURACY', pct: correct/log.length, cls:'ok'},
      {label:'ERRORS',   pct: (log.length-correct)/log.length, cls:'err'},
    ], rts));
  }

  // ── POSNER ────────────────────────────────────────────────
  if(P.log && P.log.length) {
    const log = P.log;
    const vRTs  = log.filter(r=>r.cueType==='valid'  &&r.rt!==null).map(r=>r.rt);
    const iRTs  = log.filter(r=>r.cueType==='invalid'&&r.rt!==null).map(r=>r.rt);
    const avg = a=>a.length?(a.reduce((x,y)=>x+y,0)/a.length).toFixed(0):'—';
    const benefit = vRTs.length&&iRTs.length ? ((iRTs.reduce((a,b)=>a+b,0)/iRTs.length)-(vRTs.reduce((a,b)=>a+b,0)/vRTs.length)).toFixed(0) : '—';
    sections.push(statsSection('POSNER CUEING', [
      {label:'VALID RT',   value: avg(vRTs)+' ms', sub:`n=${vRTs.length}`},
      {label:'INVALID RT', value: avg(iRTs)+' ms', sub:`n=${iRTs.length}`},
      {label:'BENEFIT',    value: benefit !== '—' ? benefit+' ms' : '—', sub:'invalid − valid'},
      {label:'TRIALS',     value: log.length, sub:'total'}
    ], [
      {label:'VALID RT',   pct: vRTs.length ? Math.min(1,parseFloat(avg(vRTs))/600) : 0, cls:'ok'},
      {label:'INVALID RT', pct: iRTs.length ? Math.min(1,parseFloat(avg(iRTs))/600) : 0, cls:'err'},
    ], [...vRTs,...iRTs]));
  }

  // ── FREE RECALL ───────────────────────────────────────────
  if(FR.recalled && FR.recalled.length) {
    const hits = FR.recalled.filter(r=>r.isHit).length;
    const total = FR.studyList.length || 12;
    const intrusions = FR.recalled.filter(r=>r.isIntrusion).length;
    // primacy: first third recalled; recency: last third
    const third = Math.ceil(total/3);
    const hitPos = FR.recalled.filter(r=>r.isHit).map(r=>r.serialPos);
    const primacy = hitPos.filter(p=>p<third).length;
    const recency = hitPos.filter(p=>p>=total-third).length;
    sections.push(statsSection('FREE RECALL', [
      {label:'HITS',       value: `${hits}/${total}`, sub:(hits/total*100).toFixed(0)+'%'},
      {label:'INTRUSIONS', value: intrusions, sub:'non-list words'},
      {label:'PRIMACY',    value: primacy, sub:'first-third recalled'},
      {label:'RECENCY',    value: recency, sub:'last-third recalled'},
    ], [
      {label:'HIT RATE',  pct: hits/total, cls:'ok'},
      {label:'INTRUSION', pct: Math.min(1,intrusions/total), cls:'err'},
    ], []));
  }

  // ── WCST ─────────────────────────────────────────────────
  if(WCST.log && WCST.log.length) {
    const log = WCST.log;
    const correct = log.filter(r=>r.correct).length;
    const persev  = log.filter(r=>r.isPersev).length;
    const errors  = log.filter(r=>!r.correct).length;
    const nonPersev = errors - persev;
    sections.push(statsSection('CARD SORTING', [
      {label:'RUNS',       value: WCST.runsComplete, sub:'of '+WCST_RUNS_GOAL+' goal'},
      {label:'ACCURACY',   value: (correct/log.length*100).toFixed(0)+'%', sub:`${correct}/${log.length}`},
      {label:'PERSEV ERR', value: persev, sub:'by old rule'},
      {label:'NON-PERSEV', value: nonPersev, sub:'other errors'},
    ], [
      {label:'ACCURACY', pct: correct/log.length, cls:'ok'},
      {label:'PERSEV',   pct: log.length?persev/log.length:0, cls:'err'},
    ], []));
  }

  // ── VRT ──────────────────────────────────────────────────
  if(VRT.log && VRT.log.length) {
    const log = VRT.log;
    const hits = log.filter(r=>r.correct).length;
    const fa   = log.filter(r=>!r.correct).length;
    const rts  = log.filter(r=>r.rt!=null&&r.correct).map(r=>r.rt);
    const avgRT = rts.length?(rts.reduce((a,b)=>a+b,0)/rts.length).toFixed(0):'—';
    const hr = log.length ? hits/log.length : 0;
    const far = log.length ? fa/log.length : 0;
    const dprime = (hr>0&&far<1)?( normInv(Math.min(0.999,hr))-normInv(Math.max(0.001,far)) ).toFixed(2):'—';
    sections.push(statsSection('VISUAL RECOGNITION',[
      {label:"HIT RATE", value:(hr*100).toFixed(0)+'%', sub:`${hits}/${log.length}`},
      {label:"FA RATE",  value:(far*100).toFixed(0)+'%', sub:`${fa} false alarms`},
      {label:"d'",       value:dprime, sub:'sensitivity'},
      {label:"AVG RT",   value:avgRT+' ms', sub:'correct trials'}
    ],[
      {label:'HIT RATE', pct:hr, cls:'ok'},
      {label:'FA RATE',  pct:far, cls:'err'},
    ], rts));
  }


  // ── CSR ──────────────────────────────────────────────────
  if(CSR.log && CSR.log.length) {
    const log=CSR.log, tgts=log.filter(r=>r.isTarget), nonTgts=log.filter(r=>!r.isTarget);
    const hits=tgts.filter(r=>r.correct&&r.rt).length, fas=nonTgts.filter(r=>!r.correct).length;
    const rts=tgts.filter(r=>r.rt).map(r=>r.rt);
    const avgRT=rts.length?(rts.reduce((a,b)=>a+b,0)/rts.length).toFixed(0):'—';
    const hr=tgts.length?hits/tgts.length:0, far=nonTgts.length?fas/nonTgts.length:0;
    const dprime=(hr>0&&far<1)?(normInv(Math.min(0.999,hr))-normInv(Math.max(0.001,far))).toFixed(2):'—';
    sections.push(statsSection('CONTRAST REVERSAL',[
      {label:'HIT RATE',value:(hr*100).toFixed(0)+'%',sub:`${hits}/${tgts.length}`},
      {label:'FA RATE', value:(far*100).toFixed(0)+'%',sub:`${fas} FAs`},
      {label:"d'",      value:dprime,sub:'sensitivity'},
      {label:'AVG RT',  value:avgRT+' ms',sub:'target hits'}
    ],[{label:'HIT RATE',pct:hr,cls:'ok'},{label:'FA RATE',pct:far,cls:'err'}],rts));
  }
  // ── P300 ─────────────────────────────────────────────────
  if(P300.log && P300.log.length) {
    const log=P300.log, odds=log.filter(r=>r.isOddball), stds=log.filter(r=>!r.isOddball);
    const hits=odds.filter(r=>r.correct&&r.rt).length, fas=stds.filter(r=>!r.correct).length;
    const rts=odds.filter(r=>r.rt).map(r=>r.rt);
    const avgRT=rts.length?(rts.reduce((a,b)=>a+b,0)/rts.length).toFixed(0):'—';
    const hr=odds.length?hits/odds.length:0, far=stds.length?fas/stds.length:0;
    const dprime=(hr>0&&far<1)?(normInv(Math.min(0.999,hr))-normInv(Math.max(0.001,far))).toFixed(2):'—';
    sections.push(statsSection('AUDITORY P300',[
      {label:'HIT RATE',value:(hr*100).toFixed(0)+'%',sub:`${hits}/${odds.length} oddballs`},
      {label:'FA RATE', value:(far*100).toFixed(0)+'%',sub:`${fas} FAs`},
      {label:"d'",      value:dprime,sub:'sensitivity'},
      {label:'AVG RT',  value:avgRT+' ms',sub:'oddball hits'}
    ],[{label:'HIT RATE',pct:hr,cls:'ok'},{label:'FA RATE',pct:far,cls:'err'}],rts));
  }

  // ── STERNBERG ─────────────────────────────────────────────
  if(STB.log && STB.log.length) {
    const log = STB.log;
    const targets = log.filter(r=>r.probeType==='target');
    const foils   = log.filter(r=>r.probeType==='foil');
    const hits  = targets.filter(r=>r.correct).length;
    const fas   = foils.filter(r=>!r.correct).length;
    const rts   = log.filter(r=>r.rt).map(r=>r.rt);
    const avgRT = rts.length?(rts.reduce((a,b)=>a+b,0)/rts.length).toFixed(0):'—';
    const hr  = targets.length ? hits/targets.length : 0;
    const far = foils.length   ? fas/foils.length    : 0;
    const dprime = (hr>0&&far<1)?(normInv(Math.min(0.999,hr))-normInv(Math.max(0.001,far))).toFixed(2):'—';
    sections.push(statsSection('STERNBERG MEMORY',[
      {label:'HIT RATE', value:(hr*100).toFixed(0)+'%', sub:`${hits}/${targets.length}`},
      {label:'FA RATE',  value:(far*100).toFixed(0)+'%', sub:`${fas}/${foils.length}`},
      {label:"d'",       value:dprime, sub:'sensitivity'},
      {label:'AVG RT',   value:avgRT+' ms', sub:'all trials'}
    ],[
      {label:'HIT RATE', pct:hr,  cls:'ok'},
      {label:'FA RATE',  pct:far, cls:'err'},
    ], rts));
  }
  // ── FLANKER ───────────────────────────────────────────────
  if(typeof FLANKER!=='undefined' && FLANKER.log && FLANKER.log.length) {
    const log = FLANKER.log;
    const cong   = log.filter(r=>r.condition==='congruent');
    const incong  = log.filter(r=>r.condition==='incongruent');
    const acc    = log.filter(r=>r.correct).length / log.length;
    const rts    = log.filter(r=>r.rt!=null).map(r=>r.rt);
    const avgRT  = rts.length?(rts.reduce((a,b)=>a+b,0)/rts.length).toFixed(0):'—';
    const congRT = cong.filter(r=>r.rt!=null).map(r=>r.rt);
    const incRT  = incong.filter(r=>r.rt!=null).map(r=>r.rt);
    const avgCong  = congRT.length ?(congRT.reduce((a,b)=>a+b,0)/congRT.length).toFixed(0):'—';
    const avgInc   = incRT.length  ?(incRT.reduce((a,b)=>a+b,0)/incRT.length).toFixed(0):'—';
    sections.push(statsSection('FLANKER',[
      {label:'ACCURACY', value:(acc*100).toFixed(0)+'%', sub:`${log.filter(r=>r.correct).length}/${log.length}`},
      {label:'AVG RT',   value:avgRT+' ms',  sub:'all trials'},
      {label:'CONG RT',  value:avgCong+' ms', sub:'congruent'},
      {label:'INCONG RT',value:avgInc+' ms',  sub:'incongruent'},
    ],[
      {label:'ACCURACY', pct:acc, cls:'ok'},
    ], rts));
  }

  // ── STOP SIGNAL ───────────────────────────────────────────
  if(typeof STOP!=='undefined' && STOP.log && STOP.log.length) {
    const log = STOP.log;
    const goTrials   = log.filter(r=>!r.isStop);
    const stopTrials = log.filter(r=>r.isStop);
    const goAcc  = goTrials.length   ? goTrials.filter(r=>r.correct).length / goTrials.length   : 0;
    const stopAcc= stopTrials.length ? stopTrials.filter(r=>r.correct).length / stopTrials.length: 0;
    const goRTs  = goTrials.filter(r=>r.rt!=null).map(r=>r.rt);
    const avgGoRT= goRTs.length?(goRTs.reduce((a,b)=>a+b,0)/goRTs.length).toFixed(0):'—';
    const lastSSD= log[log.length-1].ssd;
    sections.push(statsSection('STOP SIGNAL',[
      {label:'GO ACC',   value:(goAcc*100).toFixed(0)+'%',   sub:`${goTrials.filter(r=>r.correct).length}/${goTrials.length}`},
      {label:'STOP ACC', value:(stopAcc*100).toFixed(0)+'%', sub:`${stopTrials.filter(r=>r.correct).length}/${stopTrials.length}`},
      {label:'GO RT',    value:avgGoRT+' ms', sub:'go trials'},
      {label:'SSD',      value:lastSSD+' ms', sub:'final stop delay'},
    ],[
      {label:'GO ACC',   pct:goAcc,   cls:'ok'},
      {label:'STOP ACC', pct:stopAcc, cls:'ok'},
    ], goRTs));
  }

  // ── N400 ──────────────────────────────────────────────────
  if(typeof N400!=='undefined' && N400.log && N400.log.length) {
    const log   = N400.log;
    const cong  = log.filter(r=>r.condition==='congruent');
    const incong = log.filter(r=>r.condition==='incongruent');
    const acc   = log.filter(r=>r.correct).length / log.length;
    const congRTs = cong.filter(r=>r.rt!=null).map(r=>r.rt);
    const incRTs  = incong.filter(r=>r.rt!=null).map(r=>r.rt);
    const avgCong = congRTs.length?(congRTs.reduce((a,b)=>a+b,0)/congRTs.length).toFixed(0):'—';
    const avgInc  = incRTs.length ?(incRTs.reduce((a,b)=>a+b,0)/incRTs.length).toFixed(0):'—';
    const rtDiff  = (congRTs.length && incRTs.length) ? (parseFloat(avgInc)-parseFloat(avgCong)).toFixed(0) : '—';
    const allRTs  = log.filter(r=>r.rt!=null).map(r=>r.rt);
    sections.push(statsSection('N400',[
      {label:'ACCURACY',  value:(acc*100).toFixed(0)+'%', sub:`${log.filter(r=>r.correct).length}/${log.length}`},
      {label:'CONG RT',   value:avgCong+' ms', sub:'congruent'},
      {label:'INCONG RT', value:avgInc+' ms',  sub:'incongruent'},
      {label:'RT COST',   value:(rtDiff!=='—'?(rtDiff>0?'+':'')+rtDiff:rtDiff)+' ms', sub:'incong − cong'},
    ],[
      {label:'ACCURACY', pct:acc, cls:'ok'},
    ], allRTs));
  }

  // ── P600 ──────────────────────────────────────────────────
  if(typeof P600!=='undefined' && P600.log && P600.log.length) {
    const log  = P600.log;
    const corr = log.filter(r=>r.condition==='correct');
    const viol = log.filter(r=>r.condition==='violation');
    const acc  = log.filter(r=>r.correct).length / log.length;
    const corrRTs = corr.filter(r=>r.rt!=null).map(r=>r.rt);
    const violRTs = viol.filter(r=>r.rt!=null).map(r=>r.rt);
    const avgCorr = corrRTs.length?(corrRTs.reduce((a,b)=>a+b,0)/corrRTs.length).toFixed(0):'—';
    const avgViol = violRTs.length?(violRTs.reduce((a,b)=>a+b,0)/violRTs.length).toFixed(0):'—';
    const allRTs  = log.filter(r=>r.rt!=null).map(r=>r.rt);
    sections.push(statsSection('P600',[
      {label:'ACCURACY', value:(acc*100).toFixed(0)+'%', sub:`${log.filter(r=>r.correct).length}/${log.length}`},
      {label:'CORR RT',  value:avgCorr+' ms', sub:'grammatical'},
      {label:'VIOL RT',  value:avgViol+' ms', sub:'violation'},
    ],[
      {label:'ACCURACY', pct:acc, cls:'ok'},
    ], allRTs));
  }

  // ── ERN ───────────────────────────────────────────────────
  if(typeof ERN!=='undefined' && ERN.log && ERN.log.length) {
    const log    = ERN.log;
    const acc    = log.filter(r=>r.correct).length / log.length;
    const errors = log.filter(r=>!r.correct && r.rt!=null);
    const hits   = log.filter(r=>r.correct && r.rt!=null);
    const errRT  = errors.length?(errors.reduce((a,b)=>a+b.rt,0)/errors.length).toFixed(0):'—';
    const hitRT  = hits.length  ?(hits.reduce((a,b)=>a+b.rt,0)/hits.length).toFixed(0):'—';
    const allRTs = log.filter(r=>r.rt!=null).map(r=>r.rt);
    sections.push(statsSection('ERN',[
      {label:'ACCURACY',  value:(acc*100).toFixed(0)+'%', sub:`${log.filter(r=>r.correct).length}/${log.length} correct`},
      {label:'ERROR RATE',value:((1-acc)*100).toFixed(0)+'%', sub:`${errors.length} errors`},
      {label:'CORRECT RT',value:hitRT+' ms',  sub:'hits'},
      {label:'ERROR RT',  value:errRT+' ms',  sub:'commission errors'},
    ],[
      {label:'ACCURACY',   pct:acc,   cls:'ok'},
      {label:'ERROR RATE', pct:1-acc, cls:'err'},
    ], allRTs));
  }

  // ── FINGER TAPPING ──────────────────────────────────────────
  if(typeof FTT!=='undefined' && FTT.log && FTT.log.length) {
    const log=FTT.log;
    const sub=(name)=>log.filter(r=>r.subtest===name);
    const meanTaps=(arr)=>arr.length?(arr.reduce((a,b)=>a+b.taps,0)/arr.length).toFixed(1):'—';
    const dom=sub('dominant'),ndom=sub('nondominant'),alt=sub('alternating');
    const domMean=parseFloat(meanTaps(dom)),ndomMean=parseFloat(meanTaps(ndom));
    const asymm=(!isNaN(domMean)&&!isNaN(ndomMean)&&ndomMean>0)?((domMean-ndomMean)/domMean*100).toFixed(0)+'%':'—';
    const allRTs=[];
    sections.push(statsSection('FINGER TAPPING',[
      {label:'DOM TAPS',   value:meanTaps(dom),  sub:'mean per 10 s trial'},
      {label:'NDOM TAPS',  value:meanTaps(ndom), sub:'mean per 10 s trial'},
      {label:'ALT TAPS',   value:meanTaps(alt),  sub:'mean alternating'},
      {label:'ASYMMETRY',  value:asymm,           sub:'(dom−ndom)/dom'},
    ],[
      {label:'DOM',  pct:Math.min(1,domMean/80),  cls:'ok'},
      {label:'NDOM', pct:Math.min(1,ndomMean/80), cls:'ok'},
    ], allRTs));
  }

  // ── CNV ──────────────────────────────────────────────────────
  if(typeof CNV!=='undefined' && CNV.log && CNV.log.length) {
    const log=CNV.log;
    const goTrials  =log.filter(r=>r.type==='go');
    const catchTrials=log.filter(r=>r.type==='catch');
    const hits=goTrials.filter(r=>r.correct);
    const fas =catchTrials.filter(r=>r.fa);
    const hitRate=goTrials.length?hits.length/goTrials.length:0;
    const faRate =catchTrials.length?fas.length/catchTrials.length:0;
    const rts=hits.filter(r=>r.rt!=null).map(r=>r.rt);
    const avgRT=rts.length?(rts.reduce((a,b)=>a+b,0)/rts.length).toFixed(0):'—';
    const dprime=(hitRate>0&&faRate<1)?(normInv(Math.min(0.999,hitRate))-normInv(Math.max(0.001,faRate))).toFixed(2):'—';
    sections.push(statsSection('CNV',[
      {label:'HIT RATE', value:(hitRate*100).toFixed(0)+'%', sub:`${hits.length}/${goTrials.length}`},
      {label:'FA RATE',  value:(faRate*100).toFixed(0)+'%',  sub:`${fas.length}/${catchTrials.length}`},
      {label:"d'",       value:dprime,                        sub:'sensitivity'},
      {label:'AVG RT',   value:avgRT+' ms',                  sub:'go trials'},
    ],[
      {label:'HIT RATE', pct:hitRate, cls:'ok'},
      {label:'FA RATE',  pct:faRate,  cls:'err'},
    ], rts));
  }

  // ── DIGIT SPAN ────────────────────────────────────────────
  if(typeof DST!=='undefined' && DST.log && DST.log.length) {
    const log=DST.log;
    const fwd=log.filter(r=>r.subtest==='forward');
    const bwd=log.filter(r=>r.subtest==='backward');
    const fwdAcc=fwd.length?fwd.filter(r=>r.correct).length/fwd.length:0;
    const bwdAcc=bwd.length?bwd.filter(r=>r.correct).length/bwd.length:0;
    sections.push(statsSection('DIGIT SPAN',[
      {label:'FWD SPAN',  value:DST.fwdSpan,                           sub:'forward span score'},
      {label:'BWD SPAN',  value:DST.bwdSpan,                           sub:'backward span score'},
      {label:'TOTAL',     value:DST.fwdSpan+DST.bwdSpan,               sub:'combined score'},
      {label:'FWD ACC',   value:(fwdAcc*100).toFixed(0)+'%',           sub:`${fwd.filter(r=>r.correct).length}/${fwd.length}`},
      {label:'BWD ACC',   value:(bwdAcc*100).toFixed(0)+'%',           sub:`${bwd.filter(r=>r.correct).length}/${bwd.length}`},
    ],[
      {label:'FWD ACC', pct:fwdAcc, cls:'ok'},
      {label:'BWD ACC', pct:bwdAcc, cls:'ok'},
    ], []));
  }

  // ── STROOP ────────────────────────────────────────────────
  if(typeof STROOP!=='undefined' && STROOP.log && STROOP.log.length) {
    const log=STROOP.log;
    const cong   =log.filter(r=>r.condition==='congruent');
    const incong  =log.filter(r=>r.condition==='incongruent');
    const neutral =log.filter(r=>r.condition==='neutral');
    const meanRT  =arr=>{ const v=arr.filter(r=>r.rt!=null).map(r=>r.rt); return v.length?(v.reduce((a,b)=>a+b,0)/v.length):null; };
    const cRT=meanRT(cong), iRT=meanRT(incong), nRT=meanRT(neutral);
    const interference=(cRT!=null&&iRT!=null)?(iRT-cRT).toFixed(0):'—';
    const acc=log.filter(r=>r.correct).length/log.length;
    const allRTs=log.filter(r=>r.rt!=null).map(r=>r.rt);
    sections.push(statsSection('STROOP',[
      {label:'INTERFERENCE', value:(interference!=='—'?(interference>0?'+':'')+interference:interference)+' ms', sub:'incong − cong RT'},
      {label:'CONG RT',      value:cRT!=null?cRT.toFixed(0)+' ms':'—', sub:'congruent'},
      {label:'INCONG RT',    value:iRT!=null?iRT.toFixed(0)+' ms':'—', sub:'incongruent'},
      {label:'NEUTRAL RT',   value:nRT!=null?nRT.toFixed(0)+' ms':'—', sub:'neutral'},
      {label:'ACCURACY',     value:(acc*100).toFixed(0)+'%', sub:`${log.filter(r=>r.correct).length}/${log.length}`},
    ],[
      {label:'ACCURACY', pct:acc, cls:'ok'},
      {label:'CONG',     pct:cong.length?cong.filter(r=>r.correct).length/cong.length:0,   cls:'ok'},
      {label:'INCONG',   pct:incong.length?incong.filter(r=>r.correct).length/incong.length:0, cls:'ok'},
    ], allRTs));
  }

  // ── MMN ───────────────────────────────────────────────────────
  if(typeof MMN!=='undefined' && MMN.log && MMN.log.length) {
    const log      = MMN.log;
    const standards = log.filter(r=>r.type==='standard');
    const deviants  = log.filter(r=>r.type==='deviant');
    const total    = log.length;
    const devRate  = total ? (deviants.length/total*100).toFixed(0) : '—';
    const dur      = log.length>1 ? ((log[log.length-1].onset - log[0].onset)/1000).toFixed(1) : '—';
    sections.push(statsSection('MMN',[
      {label:'TOTAL TONES', value:total,                 sub:'presented'},
      {label:'STANDARDS',   value:standards.length,      sub:'frequent'},
      {label:'DEVIANTS',    value:deviants.length,       sub:'oddball'},
      {label:'DEVIANT RATE',value:devRate+'%',           sub:'observed'},
    ],[
      {label:'DEVIANTS', pct:deviants.length/Math.max(total,1), cls:'ok'},
    ], []));
  }

  if(sections.length === 0) {
    const empty = document.createElement('div');
    empty.className = 'stats-no-data';
    empty.textContent = 'No task data recorded yet. Complete at least one task to see statistics.';
    el.appendChild(empty);
    return;
  }
  sections.forEach(s => el.appendChild(s));
}

function statsSection(title, cards, bars, rts) {
  const sec = document.createElement('div');
  sec.className = 'stats-section';

  const ttl = document.createElement('div');
  ttl.className = 'stats-section-title';
  ttl.textContent = title;
  sec.appendChild(ttl);

  // metric cards
  const cardRow = document.createElement('div');
  cardRow.className = 'stats-cards';
  cards.forEach(c => {
    const card = document.createElement('div');
    card.className = 'stats-card';
    card.innerHTML = `<div class="stats-card-label">${c.label}</div><div class="stats-card-value">${c.value}</div><div class="stats-card-sub">${c.sub}</div>`;
    cardRow.appendChild(card);
  });
  sec.appendChild(cardRow);

  // bar chart
  if(bars.length) {
    const chart = document.createElement('div');
    chart.className = 'stats-bar-chart';
    bars.forEach(b => {
      const row = document.createElement('div');
      row.className = 'stats-bar-row';
      const pct = Math.min(1, Math.max(0, b.pct));
      row.innerHTML = `<div class="stats-bar-label">${b.label}</div><div class="stats-bar-track"><div class="stats-bar-fill ${b.cls}" style="width:${(pct*100).toFixed(1)}%"></div><div class="stats-bar-val">${(pct*100).toFixed(0)}%</div></div>`;
      chart.appendChild(row);
    });
    sec.appendChild(chart);
  }

  // RT scatter (small dot plot)
  if(rts.length > 1) {
    const scLabel = document.createElement('div');
    scLabel.style.cssText = 'font-size:0.75rem;color:var(--dim);letter-spacing:0.1em;margin-top:4px;';
    scLabel.textContent = tr('RT DISTRIBUTION');
    sec.appendChild(scLabel);
    const scatter = document.createElement('div');
    scatter.className = 'stats-scatter';
    const sorted = [...rts].sort((a,b)=>a-b);
    const maxRT = sorted[sorted.length-1] || 1;
    sorted.forEach(rt => {
      const dot = document.createElement('div');
      dot.className = 'stats-dot';
      dot.style.height = Math.max(4, (rt/maxRT)*60).toFixed(0)+'px';
      dot.title = rt.toFixed(0)+'ms';
      scatter.appendChild(dot);
    });
    sec.appendChild(scatter);
  }

  const div = document.createElement('hr');
  div.className = 'stats-divider';
  sec.appendChild(div);
  return sec;
}

// approximate normal inverse (Abramowitz & Stegun)
function normInv(p) {
  p = Math.max(0.001, Math.min(0.999, p));
  const a = [2.515517,0.802853,0.010328];
  const b = [1.432788,0.189269,0.001308];
  const sign = p < 0.5 ? -1 : 1;
  const t = Math.sqrt(-2*Math.log(Math.min(p,1-p)));
  const num = a[0]+t*(a[1]+t*a[2]);
  const den = 1+t*(b[0]+t*(b[1]+t*b[2]));
  return sign*(t - num/den);
}

function exportAllCSV() {
  const parts = [];
  if(S.log.length) {
    parts.push('# TASK: '+S.task);
    parts.push('trial,task,stimType,correct,rt_ms,response');
    S.log.forEach(r=>parts.push([r.trial,r.type,r.stimType,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):'',r.response].join(',')));
    parts.push('');
  }
  if(P.log.length) {
    parts.push('# TASK: POSNER');
    parts.push('trial,task,targetSide,cueDir,cueType,rt_ms,response');
    P.log.forEach(r=>parts.push([r.trial,r.task,r.targetSide,r.cueDir,r.cueType,r.rt!=null?r.rt.toFixed(1):'',r.response].join(',')));
    parts.push('');
  }
  if(FR.recalled.length) {
    parts.push('# TASK: FREE RECALL');
    parts.push('recall_order,typed_word,matched_word,hit,intrusion,duplicate,serial_position,time_s');
    FR.recalled.forEach((r,i)=>parts.push([i+1,r.word,r.matchedWord||'',r.isHit?1:0,r.isIntrusion?1:0,r.isDuplicate?1:0,r.serialPos!=null?r.serialPos+1:'',r.time].join(',')));
    parts.push('');
  }
  if(WCST.log.length) {
    parts.push('# TASK: WCST');
    parts.push('trial,rule,stimColor,stimShape,stimNum,targetChosen,targetCorrect,correct,isPersev,runsComplete');
    WCST.log.forEach(r=>parts.push([r.trial,r.rule,r.stimColor,r.stimShape,r.stimNum,r.targetChosen,r.targetCorrect,r.correct?1:0,r.isPersev?1:0,r.runsComplete].join(',')));
  }
  if(VRT.log.length) {
    parts.push('# TASK: VRT');
    parts.push('trial,targetSide,correct,rt_ms,studyShape,studyColor,foilShape,foilColor');
    VRT.log.forEach(r=>parts.push([r.trial,r.targetSide,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):'',r.studyShape,r.studyColor,r.foilShape,r.foilColor].join(',')));
    parts.push('');
  }
  if(CSR.log.length){
    parts.push('# TASK: CSR'); parts.push('trial,is_target,response,correct,rt_ms');
    CSR.log.forEach(r=>parts.push([r.trial,r.isTarget?1:0,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):''].join(',')));
    parts.push('');
  }
  if(P300.log.length){
    parts.push('# TASK: P300'); parts.push('trial,is_oddball,response,correct,rt_ms');
    P300.log.forEach(r=>parts.push([r.trial,r.isOddball?1:0,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):''].join(',')));
    parts.push('');
  }
  if(STB.log && STB.log.length){
    parts.push('# TASK: STERNBERG');
    parts.push('trial,set_size,mem_set,probe,probe_type,response,correct,rt_ms');
    STB.log.forEach(r=>parts.push([r.trial,r.setSize,r.memSet,r.probe,r.probeType,r.response,r.correct?1:0,r.rt?r.rt.toFixed(1):''].join(',')));
    parts.push('');
  }
  if(typeof FLANKER!=='undefined'&&FLANKER.log&&FLANKER.log.length){
    parts.push('# TASK: FLANKER');parts.push('trial,condition,direction,response,correct,rt_ms');
    FLANKER.log.forEach(r=>parts.push([r.trial,r.condition,r.direction,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):''].join(',')));parts.push('');
  }
  if(typeof STOP!=='undefined'&&STOP.log&&STOP.log.length){
    parts.push('# TASK: STOP SIGNAL');parts.push('trial,is_stop,direction,response,correct,rt_ms,ssd_ms');
    STOP.log.forEach(r=>parts.push([r.trial,r.isStop?1:0,r.direction,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):'',r.ssd].join(',')));parts.push('');
  }
  if(typeof MMN!=='undefined'&&MMN.log&&MMN.log.length){
    parts.push('# TASK: MMN');parts.push('trial,type,freq_hz,onset_ms');
    MMN.log.forEach(r=>parts.push([r.trial,r.type,r.freq,r.onset.toFixed(0)].join(',')));parts.push('');
  }
  if(typeof P600!=='undefined'&&P600.log&&P600.log.length){
    parts.push('# TASK: P600');parts.push('trial,condition,response,correct,rt_ms');
    P600.log.forEach(r=>parts.push([r.trial,r.condition,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):''].join(',')));parts.push('');
  }
  if(typeof ERN!=='undefined'&&ERN.log&&ERN.log.length){
    parts.push('# TASK: ERN');parts.push('trial,direction,response,correct,rt_ms,is_error');
    ERN.log.forEach(r=>parts.push([r.trial,r.direction,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):'',r.correct?0:1].join(',')));parts.push('');
  }
  if(typeof STROOP!=='undefined'&&STROOP.log&&STROOP.log.length){
    parts.push('# TASK: STROOP');parts.push('trial,word,ink_color,condition,response,correct,rt_ms');
    STROOP.log.forEach(r=>parts.push([r.trial,r.word,r.ink,r.condition,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):''].join(',')));parts.push('');
  }
  if(typeof N400!=='undefined'&&N400.log&&N400.log.length){
    parts.push('# TASK: N400');
    parts.push('trial,prime,target,condition,response,correct,rt_ms');
    N400.log.forEach(r=>parts.push([r.trial,r.prime,r.target,r.condition,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):''].join(',')));
    parts.push('');
  }
  if(!parts.length) return;
  const blob = new Blob([parts.join('\n')],{type:'text/csv'});
  const a = document.createElement('a'); a.href=URL.createObjectURL(blob);
  a.download='cognos_session_'+Date.now()+'.csv'; a.click();
}

// ═══════════════════════════════════════════════════════════
// STERNBERG MEMORY ENGINE
// Letters presented STRICTLY ONE AT A TIME:
//   1000ms letter ON → 1000ms fixation cross → next letter
// After full set: 2000ms retention ISI → probe appears.
// F/Space = YES (in set), J = NO (not in set).
// ═══════════════════════════════════════════════════════════

const STB_CONSONANTS = 'BCDFGHJKLMNPQRSTVWXYZ'.split('');

const STB = {
  active:      false,
  isPractice:  false,
  trial:       0,
  maxTrials:   16,
  setSizes:    [4],    // populated at task start from checkboxes
  setSize:     4,      // current trial's set size (cycled through setSizes)
  memSet:      [],
  probe:       null,
  probeIsTarget: false,
  waiting:     false,
  responded:   false,
  stimOn:      0,
  log:         [],
  practiceLog: [],
  _timers:     [],
};

function stbClear() {
  STB._timers.forEach(t => clearTimeout(t));
  STB._timers = [];
}

function startSTB(isPractice) {
  STB.active      = true;
  STB.isPractice  = isPractice;
  STB.trial       = 0;
  STB.maxTrials = taskTrials('STB',4,16,isPractice);
  stbClear();
  if(isPractice) STB.practiceLog = []; else STB.log = [];

  // Read set size(s) chosen on the INTRO screen before the task started.
  // Fall back to the legacy run-screen checkboxes, then to [4].
  var introBoxes = Array.prototype.slice.call(document.querySelectorAll('.stb-setsize-cb'));
  var checked = introBoxes.filter(function(cb){return cb.checked;}).map(function(cb){return parseInt(cb.value,10);});
  if(!checked.length){ checked = [2,4,6,8].filter(n => { const el=$('stbSz'+n); return el && el.checked; }); }
  STB.setSizes = checked.length ? checked : [4];
  STB.setSize  = STB.setSizes[0];
  try{ localStorage.setItem('cognosStbSetSizes', JSON.stringify(STB.setSizes)); }catch(_){}

  hideAll();
  $('stbScreen').style.display = 'flex';
  $('stbSetSizeRow').style.display = 'none'; // set size now chosen on the intro screen before starting
  $('stbPracticeBanner').style.display = isPractice ? 'block' : 'none';
  $('stbProgressBar').style.width = '0%';
  $('si-task').textContent = 'STB' + (isPractice ? ' (PRAC)' : '');
  $('exportBtn').disabled = true;

  ['stbStudyPhase','stbISI','stbProbePhase','stbResultsPhase'].forEach(id => $(id).style.display = 'none');
  $('stbMemoriseLabel').textContent = window._srIsUK ? 'MEMORISE' : 'MEMORIZE';
  $('stb-trial').textContent = '—';
  $('stb-phase').textContent = '—';
  $('stb-phase').className = 'stb-phase-label';

  stbNextTrial();
}

function stbNextTrial() {
  if(STB.trial >= STB.maxTrials) { stbShowResults(); return; }
  STB.trial++;

  $('stbProgressBar').style.width = ((STB.trial-1) / STB.maxTrials * 100).toFixed(1) + '%';
  $('stb-trial').textContent = `Trial ${STB.trial}/${STB.maxTrials}`;
  $('stbFeedback').textContent = '';
  $('stbFeedback').className = 'feedback';

  // Build memory set — no repeated letters
  const pool = [...STB_CONSONANTS];
  // Pick set size randomly from enabled sizes
  STB.setSize = STB.setSizes[Math.floor(Math.random() * STB.setSizes.length)];
  STB.memSet = [];
  for(let i = 0; i < STB.setSize; i++) {
    const idx = Math.floor(Math.random() * pool.length);
    STB.memSet.push(pool.splice(idx, 1)[0]);
  }

  // Probe: 50% target
  STB.probeIsTarget = Math.random() < 0.5;
  if(STB.probeIsTarget) {
    STB.probe = STB.memSet[Math.floor(Math.random() * STB.memSet.length)];
  } else {
    const foils = STB_CONSONANTS.filter(l => !STB.memSet.includes(l));
    STB.probe = foils[Math.floor(Math.random() * foils.length)];
  }

  STB.waiting   = false;
  STB.responded = false;

  stbRunStudySequence(0);
}

// ── Sequential study: letter i ON for 1s, then fixation for 1s, then letter i+1
function stbRunStudySequence(i) {
  ['stbISI','stbProbePhase','stbResultsPhase'].forEach(id => $(id).style.display = 'none');
  $('stbStudyPhase').style.display = 'flex';
  $('stb-phase').textContent = `STUDY ${i+1} / ${STB.setSize}`;
  $('stb-phase').className = 'stb-phase-label study';

  // Show the letter
  $('stbStudyLetter').textContent = STB.memSet[i];
  $('stbStudyLetter').style.color = 'var(--gold2)';

  STB._timers.push(setTimeout(() => {
    // Replace with fixation cross briefly between letters
    $('stbStudyLetter').textContent = '+';
    $('stbStudyLetter').style.color = '#2a4060';

    STB._timers.push(setTimeout(() => {
      if(i + 1 < STB.setSize) {
        // Next letter
        stbRunStudySequence(i + 1);
      } else {
        // All letters shown — retention interval
        stbRunISI();
      }
    }, 400));
  }, 600));
}

function stbRunISI() {
  $('stbStudyPhase').style.display = 'none';
  $('stbISI').style.display = 'flex';
  $('stb-phase').textContent = tr('RETENTION');
  $('stb-phase').className = 'stb-phase-label isi';

  STB._timers.push(setTimeout(stbShowProbe, 1500));
}

function stbShowProbe() {
  $('stbISI').style.display = 'none';
  $('stbProbePhase').style.display = 'flex';
  $('stb-phase').textContent = tr('PROBE');
  $('stb-phase').className = 'stb-phase-label probe';

  $('stbProbeLetter').textContent = STB.probe;
  $('stbYesBtn').disabled = false;
  $('stbNoBtn').disabled  = false;
  triggerFlash();
  STB.waiting = true;
  STB.stimOn  = performance.now();
}

function stbRespond(isYes) {
  if(!STB.waiting || STB.responded) return;
  STB.responded = true;
  STB.waiting   = false;
  stbClear();
  $('stbProbeLetter').textContent = '';            // probe disappears on response
  $('stbYesBtn').disabled = true;
  $('stbNoBtn').disabled  = true;

  const rt      = performance.now() - STB.stimOn;
  const correct = (isYes === STB.probeIsTarget);

  const entry = {
    trial:       STB.trial,
    setSize:     STB.setSize,
    memSet:      STB.memSet.join(''),
    probe:       STB.probe,
    probeType:   STB.probeIsTarget ? 'target' : 'foil',
    response:    isYes ? 'YES' : 'NO',
    correct,
    rt
  };
  (STB.isPractice ? STB.practiceLog : STB.log).push(entry);
  addLogRow(STB.trial, 'STB-' + (STB.probeIsTarget ? 'T' : 'F'), correct, rt, STB.isPractice);

  const fb = $('stbFeedback');
  fb.textContent = `${rt.toFixed(0)} ms  ${correct ? '\u2713 correct' : '\u2717 wrong'}`;
  fb.className = 'feedback ' + (correct ? 'ok' : 'err');

  const log = STB.isPractice ? STB.practiceLog : STB.log;
  const hits = log.filter(r => r.correct).length;
  $('si-acc').textContent = (hits / log.length * 100).toFixed(0) + '%';
  $('si-trial').textContent = `${STB.trial}/${STB.maxTrials}`;

  STB._timers.push(setTimeout(() => {
    $('stbProbePhase').style.display = 'none';
    stbNextTrial();
  }, 3000));  // 3-second inter-trial interval
}

function stbShowResults() {
  stbClear();
  $('stbProbePhase').style.display = 'none';
  STB.active = false;

  const log = STB.isPractice ? STB.practiceLog : STB.log;

  if(STB.isPractice) {
    const acc = log.length ? (log.filter(r=>r.correct).length / log.length * 100).toFixed(0) : 0;
    const avgRT = log.filter(r=>r.rt).length ?
      (log.filter(r=>r.rt).reduce((a,b)=>a+b.rt,0) / log.filter(r=>r.rt).length).toFixed(0) : '\u2014';
    hideAll();
    $('pcStats').innerHTML = `TRIALS <span>${log.length}</span> &nbsp; ACC <span>${acc}%</span> &nbsp; AVG RT <span>${avgRT} ms</span>`;
    $('practiceComplete').style.display = 'flex';
    return;
  }

  $('exportBtn').disabled = false;
  $('stbResultsPhase').style.display = 'flex';

  const targets = log.filter(r => r.probeType === 'target');
  const foils   = log.filter(r => r.probeType === 'foil');
  const hits    = targets.filter(r => r.correct).length;
  const fas     = foils.filter(r => !r.correct).length;
  const rts     = log.filter(r => r.rt).map(r => r.rt);
  const avgRT   = rts.length ? (rts.reduce((a,b)=>a+b,0)/rts.length).toFixed(0) : '—';
  const hr  = targets.length ? hits / targets.length : 0;
  const far = foils.length   ? fas  / foils.length   : 0;
  const dprime = (hr>0&&far<1) ?
    (normInv(Math.min(0.999,hr)) - normInv(Math.max(0.001,far))).toFixed(2) : '—';

  $('stbMetrics').innerHTML = `
    <div>HIT RATE <span>${(hr*100).toFixed(0)}%</span></div>
    <div>FA RATE <span>${(far*100).toFixed(0)}%</span></div>
    <div>d' <span>${dprime}</span></div>
    <div>AVG RT <span>${avgRT} ms</span></div>`;

  // ── RT-by-set-size chart ──────────────────────────────────
  const sizes = [...new Set(log.map(r=>r.setSize))].sort((a,b)=>a-b);
  const yesRTs = {}, noRTs = {};
  sizes.forEach(sz => {
    const szLog = log.filter(r => r.setSize === sz && r.rt);
    const yesLog = szLog.filter(r => r.response === 'YES');
    const noLog  = szLog.filter(r => r.response === 'NO');
    yesRTs[sz] = yesLog.length ? yesLog.reduce((a,b)=>a+b.rt,0)/yesLog.length : null;
    noRTs[sz]  = noLog.length  ? noLog.reduce((a,b)=>a+b.rt,0)/noLog.length   : null;
  });

  // Combined (YES+NO) correct-trial mean RT per set size — this is the classic
  // Sternberg function that the regression line is fit to.
  const combRTs = {};
  sizes.forEach(sz => {
    const c = log.filter(r => r.setSize === sz && r.rt && r.correct);
    combRTs[sz] = c.length ? c.reduce((a,b)=>a+b.rt,0)/c.length : null;
  });

  stbDrawRtChart(sizes, yesRTs, noRTs, combRTs);

  // ── Trial-by-trial table ──────────────────────────────────
  const grid = $('stbResultsGrid');
  grid.innerHTML = '';
  log.forEach(e => {
    const row = document.createElement('div');
    row.className = 'vrt-result-row';
    const lbl = document.createElement('div');
    lbl.className = 'vrt-result-label';
    lbl.textContent = `T${e.trial}  N=${e.setSize}  [${e.memSet}]→${e.probe}`;
    const rt = document.createElement('div');
    rt.className = 'vrt-rt-val';
    rt.textContent = e.rt ? e.rt.toFixed(0)+' ms' : '—';
    const badge = document.createElement('div');
    badge.className = 'vrt-result-badge ' + (e.correct ? 'ok' : 'err');
    badge.textContent = (e.response==='YES'?'Y':'N') + ' ' + (e.correct ? '✓' : '✗');
    row.append(lbl, rt, badge);
    grid.appendChild(row);
  });
}

function stbDrawRtChart(sizes, yesRTs, noRTs, combRTs) {
  const canvas = $('stbRtChart');
  if(!canvas) return;
  const ctx = canvas.getContext('2d');
  const W = canvas.width, H = canvas.height;
  const pad = { top:16, right:16, bottom:36, left:52 };
  const cw = W - pad.left - pad.right;
  const ch = H - pad.top  - pad.bottom;

  ctx.clearRect(0, 0, W, H);
  ctx.fillStyle = '#060d14';
  ctx.fillRect(0, 0, W, H);

  if(!sizes.length) return;

  // Gather all RT values to set y scale
  const allVals = [...Object.values(yesRTs), ...Object.values(noRTs), ...Object.values(combRTs||{})].filter(v=>v!==null);
  if(!allVals.length) return;
  const maxRT = Math.max(...allVals) * 1.15;
  const minRT = Math.min(...allVals) * 0.85;

  const toY = v => pad.top + ch - ((v - minRT) / (maxRT - minRT)) * ch;
  const toX = i => pad.left + (i + 0.5) * (cw / sizes.length);

  // Grid lines
  ctx.strokeStyle = '#1a2f44';
  ctx.lineWidth = 1;
  [0.25, 0.5, 0.75, 1.0].forEach(t => {
    const y = pad.top + ch * (1-t);
    ctx.beginPath(); ctx.moveTo(pad.left, y); ctx.lineTo(pad.left+cw, y); ctx.stroke();
    const val = (minRT + t*(maxRT-minRT));
    ctx.fillStyle = '#2a4060';
    ctx.font = '10px Source Code Pro, monospace';
    ctx.textAlign = 'right';
    ctx.fillText(val.toFixed(0), pad.left - 4, y + 4);
  });

  // Axis labels
  ctx.fillStyle = '#4a6a8a';
  ctx.font = '10px Source Code Pro, monospace';
  ctx.textAlign = 'center';
  sizes.forEach((sz, i) => {
    ctx.fillText('N='+sz, toX(i), H - pad.bottom + 14);
  });

  // Y axis label
  ctx.save();
  ctx.translate(12, pad.top + ch/2);
  ctx.rotate(-Math.PI/2);
  ctx.fillStyle = '#4a6a8a';
  ctx.font = '9px Source Code Pro, monospace';
  ctx.fillText('RT (ms)', 0, 0);
  ctx.restore();

  // Draw YES line (gold)
  ctx.strokeStyle = '#c8a84b';
  ctx.lineWidth = 2;
  ctx.beginPath();
  let first = true;
  sizes.forEach((sz, i) => {
    if(yesRTs[sz] === null) return;
    const x = toX(i), y = toY(yesRTs[sz]);
    first ? ctx.moveTo(x, y) : ctx.lineTo(x, y);
    first = false;
  });
  ctx.stroke();
  sizes.forEach((sz, i) => {
    if(yesRTs[sz] === null) return;
    ctx.fillStyle = '#c8a84b';
    ctx.beginPath(); ctx.arc(toX(i), toY(yesRTs[sz]), 4, 0, Math.PI*2); ctx.fill();
  });

  // Draw NO line (steel blue)
  ctx.strokeStyle = '#5b9fda';
  ctx.lineWidth = 2;
  ctx.beginPath();
  first = true;
  sizes.forEach((sz, i) => {
    if(noRTs[sz] === null) return;
    const x = toX(i), y = toY(noRTs[sz]);
    first ? ctx.moveTo(x, y) : ctx.lineTo(x, y);
    first = false;
  });
  ctx.stroke();
  sizes.forEach((sz, i) => {
    if(noRTs[sz] === null) return;
    ctx.fillStyle = '#5b9fda';
    ctx.beginPath(); ctx.arc(toX(i), toY(noRTs[sz]), 4, 0, Math.PI*2); ctx.fill();
  });

  // ── Classic Sternberg regression: RT = intercept + slope·N ──────────────
  // Least-squares fit of the COMBINED (yes+no) correct-trial mean RT against
  // set size. The slope is the memory-scanning rate (ms/item); the intercept
  // reflects encoding + comparison + response time at set size 0.
  var fit=null;
  if(combRTs){
    var pts=sizes.map(function(sz){return {x:sz,y:combRTs[sz]};}).filter(function(p){return p.y!==null;});
    if(pts.length>=2){
      var n=pts.length, sx=0,sy=0,sxx=0,sxy=0;
      pts.forEach(function(p){sx+=p.x;sy+=p.y;sxx+=p.x*p.x;sxy+=p.x*p.y;});
      var slope=(n*sxy-sx*sy)/(n*sxx-sx*sx);
      var intercept=(sy-slope*sx)/n;
      var meanY=sy/n, ssTot=0, ssRes=0;
      pts.forEach(function(p){var pred=intercept+slope*p.x; ssRes+=Math.pow(p.y-pred,2); ssTot+=Math.pow(p.y-meanY,2);});
      var r2=ssTot>0?(1-ssRes/ssTot):1;
      fit={slope:slope,intercept:intercept,r2:r2};
      var y0=intercept+slope*sizes[0], y1=intercept+slope*sizes[sizes.length-1];
      ctx.strokeStyle='#e8d9a0'; ctx.lineWidth=2; ctx.setLineDash([6,4]);
      ctx.beginPath(); ctx.moveTo(toX(0), toY(y0)); ctx.lineTo(toX(sizes.length-1), toY(y1)); ctx.stroke();
      ctx.setLineDash([]);
      sizes.forEach(function(sz,i){ if(combRTs[sz]===null) return; ctx.fillStyle='#f5f0e8'; ctx.beginPath(); ctx.arc(toX(i), toY(combRTs[sz]), 3, 0, Math.PI*2); ctx.fill(); });
    }
  }

  // Legend
  const legend = $('stbChartLegend');
  if(legend) legend.innerHTML =
    '<span style="color:#c8a84b">● YES</span>' +
    '<span style="color:#5b9fda">● NO</span>' +
    '<span style="color:#f5f0e8">● combined</span>' +
    (fit ? '<span style="color:#e8d9a0">– – fit: RT = '+fit.intercept.toFixed(0)+' + '+fit.slope.toFixed(1)+'·N &nbsp; (scanning rate '+fit.slope.toFixed(1)+' ms/item, R²='+fit.r2.toFixed(2)+')</span>'
         : '<span style="color:var(--dim)">select ≥2 set sizes for the scanning-rate slope</span>');
}

function exportStbCSV() {
  const log = STB.log;
  if(!log.length) return;
  const hdr = 'trial,set_size,mem_set,probe,probe_type,response,correct,rt_ms\n';
  const rows = log.map(r=>[r.trial,r.setSize,r.memSet,r.probe,r.probeType,r.response,r.correct?1:0,r.rt?r.rt.toFixed(1):''].join(','));
  const blob = new Blob([hdr+rows.join('\n')],{type:'text/csv'});
  const a = document.createElement('a'); a.href=URL.createObjectURL(blob);
  a.download='cognos_sternberg_'+Date.now()+'.csv'; a.click();
}


document.addEventListener('keydown', e => {
  if(FR.phase==='distractor' && e.key==='Enter') { e.preventDefault(); checkDistractor(); return; }
  if(e.key===' '||e.key==='f'||e.key==='F'){ e.preventDefault(); if(P.active&&P.waiting) posnerDetect(); else if(CSR.active&&CSR.waiting) csrRespond(); else if(P300.active&&P300.waiting) p300Respond(); else if(STB.waiting) stbRespond(true); else respButton(true); }
  if(e.key==='j'||e.key==='J'){ if(STB.waiting) stbRespond(false); else respButton(false); }
  if(e.key==='Enter'){ if($('introScreen').style.display!=='none') startPractice(); if($('practiceComplete').style.display!=='none') startMain(); }
});


// ═══════════════════════════════════════════════════════════
// CONTRAST REVERSAL ENGINE
// Steady checkerboard reversal stream. Target = 45° rotated
// checkerboard for one reversal cycle. Go/No-Go structure.
// ═══════════════════════════════════════════════════════════

const CSR_CELL   = 24;   // px per cell
const CSR_CELLS  = 10;   // cells per side
const CSR_SIZE   = CSR_CELL * CSR_CELLS;   // 240px
const CSR_REVERSAL_MS = 500;   // ms per reversal cycle (2 Hz)
const CSR_ISI_MS      = 600;
const CSR_TARGET_PROB = 0.20;

const CSR = {
  active: false, isPractice: false,
  trial: 0, maxTrials: 20,
  polarity: 0,         // 0 or 1
  isTarget: false,
  waiting: false, responded: false,
  stimOn: 0,
  log: [], practiceLog: [],
  _timers: [],
  reversalHz: 2,       // configurable via editor
};

function csrClearTimers(){ CSR._timers.forEach(t=>clearTimeout(t)); CSR._timers=[]; }

function csrDraw(rotated) {
  const canvas = $('csrCanvas');
  const ctx = canvas.getContext('2d');
  const sz = window._csrSz || CSR_SIZE;
  const c = Math.floor(sz / CSR_CELLS);
  ctx.clearRect(0,0,sz,sz);
  if(rotated) {
    // 45° rotated pattern — diamond grid
    ctx.save();
    ctx.translate(sz/2, sz/2);
    ctx.rotate(Math.PI/4);
    const diagSz = sz * 1.5;
    const half = diagSz/2;
    const cells = Math.ceil(diagSz/c)+2;
    for(let r=0; r<cells; r++) {
      for(let col=0; col<cells; col++) {
        const light = ((r+col+CSR.polarity)%2===0);
        ctx.fillStyle = light ? '#e0e8f0' : '#060d14';
        ctx.fillRect(-half + col*c, -half + r*c, c, c);
      }
    }
    ctx.restore();
  } else {
    // Standard axis-aligned checkerboard
    for(let r=0; r<CSR_CELLS; r++) {
      for(let col=0; col<CSR_CELLS; col++) {
        const light = ((r+col+CSR.polarity)%2===0);
        ctx.fillStyle = light ? '#e0e8f0' : '#060d14';
        ctx.fillRect(col*c, r*c, c, c);
      }
    }
  }
  // Fixation cross
  ctx.fillStyle = '#c8a84b';
  ctx.fillRect(sz/2-1, sz/2-8, 2, 16);
  ctx.fillRect(sz/2-8, sz/2-1, 16, 2);
}

function startCSR(isPractice) {
  CSR.active=true; CSR.isPractice=isPractice;
  CSR.trial=0;
  CSR.maxTrials = taskTrials('CSR',6,20,isPractice);
  csrClearTimers();
  if(isPractice) CSR.practiceLog=[]; else CSR.log=[];
  CSR.polarity=0;

  hideAll();
  $('csrScreen').style.display='flex';
  $('csrPracticeBanner').style.display=isPractice?'block':'none';
  $('csrProgressBar').style.width='0%';
  $('csrFeedback').textContent='';
  $('csrFeedback').className='feedback';
  $('csr-trial-ov').textContent='—';
  $('csr-phase-ov').textContent='—'; $('csr-phase-ov').style.color='var(--dim)';
  $('si-task').textContent='CSR'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;
  $('csrArena').style.display='flex';
  $('csrResultsPhase').style.display='none';

  // Defer resize + first draw until after browser has painted layout
  requestAnimationFrame(function(){
    const main = document.querySelector('.main');
    const h = main ? main.clientHeight - 120 : window.innerHeight - 160;
    const w = main ? main.clientWidth - 40 : window.innerWidth - 260;
    const sz = Math.min(w, h, 560);
    const canvas = $('csrCanvas');
    canvas.width = sz; canvas.height = sz;
    window._csrSz = sz;
    csrNextTrial();
  });
}

function csrNextTrial() {
  if(CSR.trial >= CSR.maxTrials){ csrShowResults(); return; }
  CSR.trial++;
  $('csrProgressBar').style.width=((CSR.trial-1)/CSR.maxTrials*100).toFixed(1)+'%';
  $('csr-trial-ov').textContent=`Trial ${CSR.trial}/${CSR.maxTrials}`;
  $('csrFeedback').textContent='';
  $('csrFeedback').className='feedback';

  CSR.isTarget = Math.random() < CSR_TARGET_PROB;
  CSR.responded = false;
  CSR.waiting = true;
  CSR.polarity = 0;
  triggerFlash();
  CSR.stimOn = performance.now();
  $('csr-phase-ov').textContent = CSR.isTarget ? 'TARGET' : 'STANDARD'; $('csr-phase-ov').style.color = CSR.isTarget ? 'var(--gold)' : 'var(--dim)';

  // Animate reversals
  let rev = 0;
  const maxRev = 4; // 4 reversals per trial = 2s
  function doReversal() {
    CSR.polarity = 1 - CSR.polarity;
    // Draw rotated only on first reversal of target trials
    const showRotated = CSR.isTarget && rev === 0;
    csrDraw(showRotated);
    rev++;
    if(rev < maxRev) {
      CSR._timers.push(setTimeout(doReversal, CSR_REVERSAL_MS));
    } else {
      // End of stimulus
      CSR._timers.push(setTimeout(csrTrialEnd, CSR_REVERSAL_MS));
    }
  }
  csrDraw(false);
  CSR._timers.push(setTimeout(doReversal, CSR_REVERSAL_MS));
}

function csrTrialEnd() {
  if(!CSR.responded) {
    const entry = {trial:CSR.trial, isTarget:CSR.isTarget, response:'none',
      correct:!CSR.isTarget, rt:null};
    const log = CSR.isPractice ? CSR.practiceLog : CSR.log;
    log.push(entry);
    addLogRow(CSR.trial,'CSR-'+(CSR.isTarget?'T':'NT'),entry.correct,null,CSR.isPractice);
    if(CSR.isTarget){ $('csrFeedback').textContent=tr('MISS'); $('csrFeedback').className='feedback err'; }
  }
  CSR.waiting=false;
  csrDraw(false);
  CSR._timers.push(setTimeout(csrNextTrial, CSR_ISI_MS));
}

function csrRespond() {
  if(!CSR.waiting || CSR.responded) return;
  CSR.responded=true; CSR.waiting=false;
  const rt = performance.now()-CSR.stimOn;
  const correct = CSR.isTarget;
  const entry = {trial:CSR.trial, isTarget:CSR.isTarget, response:'detect', correct, rt};
  const log = CSR.isPractice ? CSR.practiceLog : CSR.log;
  log.push(entry);
  addLogRow(CSR.trial,'CSR-'+(CSR.isTarget?'T':'NT'),correct,rt,CSR.isPractice);
  const fb=$('csrFeedback');
  fb.textContent = correct ? `${rt.toFixed(0)} ms  \u2713 HIT` : `${rt.toFixed(0)} ms  \u2717 FA`;
  fb.className='feedback '+(correct?'ok':'err');
  const l = (CSR.isPractice?CSR.practiceLog:CSR.log).filter(r=>r.isTarget);
  if(l.length) $('si-acc').textContent=(l.filter(r=>r.correct).length/l.length*100).toFixed(0)+'%';
  $('si-trial').textContent=`${CSR.trial}/${CSR.maxTrials}`;
}

function csrShowResults() {
  csrClearTimers(); $('csrArena').style.display='none'; CSR.active=false;
  const log = CSR.isPractice ? CSR.practiceLog : CSR.log;
  if(CSR.isPractice){
    const tgts=log.filter(r=>r.isTarget); const hits=tgts.filter(r=>r.correct).length;
    const avg=log.filter(r=>r.rt).length?(log.filter(r=>r.rt).reduce((a,b)=>a+b.rt,0)/log.filter(r=>r.rt).length).toFixed(0):'—';
    hideAll(); $('pcStats').innerHTML=`HIT RATE <span>${tgts.length?((hits/tgts.length)*100).toFixed(0):0}%</span> &nbsp; AVG RT <span>${avg} ms</span>`;
    $('practiceComplete').style.display='flex'; return;
  }
  $('exportBtn').disabled=false;
  $('csrResultsPhase').style.display='flex';
  const tgts=log.filter(r=>r.isTarget), nonTgts=log.filter(r=>!r.isTarget);
  const hits=tgts.filter(r=>r.correct&&r.rt).length, fas=nonTgts.filter(r=>!r.correct).length;
  const rts=tgts.filter(r=>r.rt).map(r=>r.rt);
  const avgRT=rts.length?(rts.reduce((a,b)=>a+b,0)/rts.length).toFixed(0):'—';
  const hr=tgts.length?hits/tgts.length:0, far=nonTgts.length?fas/nonTgts.length:0;
  const dprime=(hr>0&&far<1)?(normInv(Math.min(0.999,hr))-normInv(Math.max(0.001,far))).toFixed(2):'—';
  $('csrMetrics').innerHTML=`<div>HIT RATE <span>${(hr*100).toFixed(0)}%</span></div><div>FA RATE <span>${(far*100).toFixed(0)}%</span></div><div>d' <span>${dprime}</span></div><div>AVG RT <span>${avgRT} ms</span></div>`;
  const grid=$('csrResultsGrid'); grid.innerHTML='';
  log.forEach(e=>{ const row=document.createElement('div'); row.className='vrt-result-row';
    const lbl=document.createElement('div'); lbl.className='vrt-result-label'; lbl.textContent=`T${e.trial}  ${e.isTarget?'(TGT)':'(NT)'}`;
    const rt=document.createElement('div'); rt.className='vrt-rt-val'; rt.textContent=e.rt?e.rt.toFixed(0)+' ms':'—';
    const badge=document.createElement('div');
    badge.className='vrt-result-badge '+(e.isTarget&&e.correct?'ok':e.isTarget&&!e.correct?'miss':!e.isTarget&&!e.correct?'err':'miss');
    badge.textContent=e.isTarget&&e.correct?'\u2713 HIT':e.isTarget&&!e.correct?'\u25CB MISS':!e.isTarget&&!e.correct?'\u2717 FA':'CR';
    row.append(lbl,rt,badge); grid.appendChild(row);
  });
}

function exportCsrCSV(){
  const log=CSR.log; if(!log.length) return;
  const rows=log.map(r=>[r.trial,r.isTarget?1:0,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):''].join(','));
  const blob=new Blob(['trial,is_target,response,correct,rt_ms\n'+rows.join('\n')],{type:'text/csv'});
  const a=document.createElement('a'); a.href=URL.createObjectURL(blob); a.download='cognos_csr_'+Date.now()+'.csv'; a.click();
}

// ═══════════════════════════════════════════════════════════
// AUDITORY P300 ENGINE
// Oddball paradigm: frequent standard tone vs rare oddball.
// Web Audio API synthesis — no external files needed.
// ═══════════════════════════════════════════════════════════

const P300 = {
  active: false, isPractice: false,
  trial: 0, maxTrials: 40,
  isOddball: false,
  waiting: false, responded: false,
  stimOn: 0,
  log: [], practiceLog: [],
  _timers: [],
  stdFreq: 1000,    // Hz — configurable via editor
  oddFreq: 2000,    // Hz — configurable via editor
  oddProb: 0.20,    // configurable via editor
  stimDur: 100,     // ms tone duration
  isiMin:  700,     // ms
  isiMax:  1200,    // ms
  _actx: null,
};

function p300ClearTimers(){ P300._timers.forEach(t=>clearTimeout(t)); P300._timers=[]; }

function p300Tone(freq, dur, gain, kind) {
  // Try custom-loaded audio file first (R12: Custom Audio integration)
  // kind === 'standard' or 'oddball'; if a WAV is loaded for that slot it
  // is played as-is and we skip the oscillator synthesis entirely.
  if (kind && typeof CustomAudio !== 'undefined' &&
      CustomAudio.tryPlay('p300-' + kind, gain || 0.4)) {
    return;
  }
  if(!P300._actx) {
    try { P300._actx = new (window.AudioContext||window.webkitAudioContext)(); } catch(e){ return; }
  }
  const actx = P300._actx;
  if(actx.state==='suspended') actx.resume();
  const osc = actx.createOscillator();
  const env = actx.createGain();
  osc.connect(env); env.connect(actx.destination);
  osc.frequency.value = freq;
  osc.type = 'sine';
  const now = actx.currentTime;
  env.gain.setValueAtTime(0, now);
  env.gain.linearRampToValueAtTime(gain||0.4, now + 0.005);
  env.gain.setValueAtTime(gain||0.4, now + dur/1000 - 0.01);
  env.gain.linearRampToValueAtTime(0, now + dur/1000);
  osc.start(now);
  osc.stop(now + dur/1000 + 0.02);
}

function startP300(isPractice) {
  P300.active=true; P300.isPractice=isPractice;
  P300.trial=0;
  P300.maxTrials = taskTrials('P300',10,40,isPractice);
  p300ClearTimers();
  if(isPractice) P300.practiceLog=[]; else P300.log=[];

  hideAll();
  $('p300Screen').style.display='flex';
  $('p300PracticeBanner').style.display=isPractice?'block':'none';
  $('p300ProgressBar').style.width='0%';
  $('p300Feedback').textContent='';
  $('p300Feedback').className='feedback';
  $('p300-trial').textContent='—';
  $('p300-phase').textContent='—';
  // R12: if custom audio is loaded, show file name instead of Hz
  var _ovStd = (typeof CustomAudio !== 'undefined') ? CustomAudio.slotLabel('p300-standard') : null;
  var _ovOdd = (typeof CustomAudio !== 'undefined') ? CustomAudio.slotLabel('p300-oddball')  : null;
  $('p300-std-freq').textContent = _ovStd || P300.stdFreq;
  $('p300-odd-freq').textContent = _ovOdd || P300.oddFreq;
  // Hide "Hz" suffix when showing a filename — find the parent text node
  try {
    var stdParent = $('p300-std-freq').parentNode;
    var oddParent = $('p300-odd-freq').parentNode;
    stdParent.lastChild.nodeValue = _ovStd ? '' : ' Hz';
    oddParent.lastChild.nodeValue = _ovOdd ? '' : ' Hz';
  } catch(e){}
  $('p300-prob').textContent=(P300.oddProb*100).toFixed(0)+'%';
  $('si-task').textContent='P300'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;
  $('p300Arena').style.display='flex';
  $('p300ResultsPhase').style.display='none';

  // Trigger: block start (10) — practice uses 10, main uses 10 with isPractice in meta
  Trigger.send(10, 'P300_block_start', {task:'P300', practice:isPractice, n_trials:P300.maxTrials, std_freq:P300.stdFreq, odd_freq:P300.oddFreq, p_oddball:P300.oddProb});

  // Brief ready delay
  $('p300Circle').className='p300-stim-circle isi';
  $('p300Circle').textContent='+';
  P300._timers.push(setTimeout(p300NextTrial, 1000));
}

function p300NextTrial() {
  if(P300.trial >= P300.maxTrials){ p300ShowResults(); return; }
  P300.trial++;
  $('p300ProgressBar').style.width=((P300.trial-1)/P300.maxTrials*100).toFixed(1)+'%';
  $('p300-trial').textContent=`Trial ${P300.trial}/${P300.maxTrials}`;
  $('p300Feedback').textContent=''; $('p300Feedback').className='feedback';

  P300.isOddball = Math.random() < P300.oddProb;
  P300.responded = false;
  P300.waiting = true;

  const circle = $('p300Circle');
  if(P300.isOddball){
    circle.className='p300-stim-circle oddball';
    circle.textContent='\u25C6';
    p300Tone(P300.oddFreq, P300.stimDur, 0.45, 'oddball');
    $('p300-phase').textContent=tr('ODDBALL');
  } else {
    circle.className='p300-stim-circle standard';
    circle.textContent='\u25CB';
    p300Tone(P300.stdFreq, P300.stimDur, 0.30, 'standard');
    $('p300-phase').textContent=tr('STANDARD');
  }
  triggerFlash();
  P300.stimOn = performance.now();
  // Trigger: stim onset — code 41 oddball/target, 42 standard
  Trigger.send(P300.isOddball?41:42, P300.isOddball?'P300_oddball':'P300_standard', {task:'P300', trial:P300.trial, stim:P300.isOddball?'oddball':'standard'});

  // Hide circle after tone
  P300._timers.push(setTimeout(()=>{
    circle.className='p300-stim-circle isi'; circle.textContent='+';
  }, P300.stimDur + 150));

  // Response window = 800ms, then ISI
  P300._timers.push(setTimeout(p300TrialEnd, 800));
}

function p300TrialEnd() {
  if(!P300.responded) {
    // Trigger: omission (52) if oddball was missed
    if(P300.isOddball) Trigger.send(52, 'P300_miss', {task:'P300', trial:P300.trial});
    const entry={trial:P300.trial, isOddball:P300.isOddball, response:'none',
      correct:!P300.isOddball, rt:null};
    (P300.isPractice?P300.practiceLog:P300.log).push(entry);
    addLogRow(P300.trial,'P300-'+(P300.isOddball?'ODD':'STD'),entry.correct,null,P300.isPractice);
    if(P300.isOddball){ $('p300Feedback').textContent=tr('MISS'); $('p300Feedback').className='feedback err'; }
  }
  P300.waiting=false;
  const isi = P300.isiMin + Math.random()*(P300.isiMax-P300.isiMin);
  P300._timers.push(setTimeout(p300NextTrial, isi));
}

function p300Respond() {
  if(!P300.waiting || P300.responded) return;
  P300.responded=true; P300.waiting=false;
  const rt=performance.now()-P300.stimOn;
  const correct=P300.isOddball;
  // Trigger: response (50 correct = hit on oddball, 51 incorrect = false alarm on standard)
  Trigger.send(correct?50:51, correct?'P300_hit':'P300_FA', {task:'P300', trial:P300.trial, rt:+rt.toFixed(1)});
  const entry={trial:P300.trial, isOddball:P300.isOddball, response:'detect', correct, rt};
  (P300.isPractice?P300.practiceLog:P300.log).push(entry);
  addLogRow(P300.trial,'P300-'+(P300.isOddball?'ODD':'STD'),correct,rt,P300.isPractice);
  const fb=$('p300Feedback');
  fb.textContent=correct?`${rt.toFixed(0)} ms  \u2713 HIT`:`${rt.toFixed(0)} ms  \u2717 FA`;
  fb.className='feedback '+(correct?'ok':'err');
  const l=(P300.isPractice?P300.practiceLog:P300.log).filter(r=>r.isOddball);
  if(l.length) $('si-acc').textContent=(l.filter(r=>r.correct).length/l.length*100).toFixed(0)+'%';
  $('si-trial').textContent=`${P300.trial}/${P300.maxTrials}`;
}

function p300ShowResults() {
  p300ClearTimers(); $('p300Arena').style.display='none'; P300.active=false;
  Trigger.send(11, 'P300_block_end', {task:'P300'});
  const log=P300.isPractice?P300.practiceLog:P300.log;
  if(P300.isPractice){
    const odds=log.filter(r=>r.isOddball); const hits=odds.filter(r=>r.correct).length;
    const avg=log.filter(r=>r.rt).length?(log.filter(r=>r.rt).reduce((a,b)=>a+b.rt,0)/log.filter(r=>r.rt).length).toFixed(0):'—';
    hideAll(); $('pcStats').innerHTML=`HIT RATE <span>${odds.length?((hits/odds.length)*100).toFixed(0):0}%</span> &nbsp; AVG RT <span>${avg} ms</span>`;
    $('practiceComplete').style.display='flex'; return;
  }
  $('exportBtn').disabled=false; $('p300ResultsPhase').style.display='flex';
  const odds=log.filter(r=>r.isOddball), stds=log.filter(r=>!r.isOddball);
  const hits=odds.filter(r=>r.correct&&r.rt).length, fas=stds.filter(r=>!r.correct).length;
  const rts=odds.filter(r=>r.rt).map(r=>r.rt);
  const avgRT=rts.length?(rts.reduce((a,b)=>a+b,0)/rts.length).toFixed(0):'—';
  const hr=odds.length?hits/odds.length:0, far=stds.length?fas/stds.length:0;
  const dprime=(hr>0&&far<1)?(normInv(Math.min(0.999,hr))-normInv(Math.max(0.001,far))).toFixed(2):'—';
  $('p300Metrics').innerHTML=`<div>HIT RATE <span>${(hr*100).toFixed(0)}%</span></div><div>FA RATE <span>${(far*100).toFixed(0)}%</span></div><div>d' <span>${dprime}</span></div><div>AVG RT <span>${avgRT} ms</span></div>`;
  const grid=$('p300ResultsGrid'); grid.innerHTML='';
  log.forEach(e=>{ const row=document.createElement('div'); row.className='vrt-result-row';
    const lbl=document.createElement('div'); lbl.className='vrt-result-label'; lbl.textContent=`T${e.trial}  ${e.isOddball?'(ODD)':'(STD)'}`;
    const rt=document.createElement('div'); rt.className='vrt-rt-val'; rt.textContent=e.rt?e.rt.toFixed(0)+' ms':'—';
    const badge=document.createElement('div');
    badge.className='vrt-result-badge '+(e.isOddball&&e.correct?'ok':e.isOddball&&!e.correct?'miss':!e.isOddball&&!e.correct?'err':'miss');
    badge.textContent=e.isOddball&&e.correct?'\u2713 HIT':e.isOddball&&!e.correct?'\u25CB MISS':!e.isOddball&&!e.correct?'\u2717 FA':'CR';
    row.append(lbl,rt,badge); grid.appendChild(row);
  });
}

function exportP300CSV(){
  const log=P300.log; if(!log.length) return;
  const rows=log.map(r=>[r.trial,r.isOddball?1:0,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):''].join(','));
  const blob=new Blob(['trial,is_oddball,response,correct,rt_ms\n'+rows.join('\n')],{type:'text/csv'});
  const a=document.createElement('a'); a.href=URL.createObjectURL(blob); a.download='cognos_p300_'+Date.now()+'.csv'; a.click();
}

// ═══════════════════════════════════════════════════════════
// TASK EDITOR ENGINE
// Provides a UI to configure task parameters without
// touching code. Settings stored in TASK_CONFIG and applied
// at task start. All parameters have documented defaults.
// ═══════════════════════════════════════════════════════════

const TASK_DEFAULTS = {
  GNG:    { trials:20, goProb:0.75, stimDur:500, isiMin:800, isiMax:1400 },
  NBACK:  { trials:20, n:2, matchProb:0.33, stimDur:500, isi:2000 },
  SPATIAL:{ trials:20, stimDur:200, isiMin:800, isiMax:1400 },
  POSNER: { trials:20, validity:80, soa:200 },
  WCST:   { maxRuns:3 },
  CSR:    { trials:20, targetProb:20, reversalHz:2 },
  P300:   { trials:40, stdFreq:1000, oddFreq:2000, oddProb:20, stimDur:100 },
  VRT:    { studyN:6, testN:6 },
  STB:    { trials:16, stimDur:1000, retDur:2000 },
  FLANKER:{ trials:40, stimDur:200, deadline:1000 },
  STOP:   { trials:40, stopProb:25, initSSD:250 },
  N400:   { trials:30, incongProb:20, stimDur:600 },
  P600:   { trials:30, violProb:30, stimDur:600 },
  ERN:    { trials:60, deadline:500 },
  FTT:    { trialDur:10, nTrials:3, itiDur:3 },
  CNV:    { trials:30, foreperiod:1500, catchProb:20, s1Dur:100, s2Dur:1500 },
  DST:    { digitRate:1000, maxSpan:9 },
  STROOP: { trials:40, stimDur:3000, congPct:40, incPct:40 },
  MMN:    { trials:60, stdFreq:1000, devFreq:1200, devProb:20, isi:500 },
};

// Deep copy for live config
const TASK_CONFIG = JSON.parse(JSON.stringify(TASK_DEFAULTS));

// ── Per-task trial-count overrides ──────────────────────────
// Lets every task carry its OWN main-run trial count, independent of the shared
// TRIALS box. Resolution order (main runs): per-task override → shared #trialsInput
// → the task's coded default. Practice runs always use their fixed short count.
var TASK_TRIALS = (function(){
  var KEY='cognos_task_trials_v1';
  var _m=null;
  function load(){ if(_m) return _m; try{ var r=localStorage.getItem(KEY); _m=r?JSON.parse(r):{}; }catch(e){ _m={}; } if(typeof _m!=='object'||!_m) _m={}; return _m; }
  function save(){ try{ localStorage.setItem(KEY, JSON.stringify(load())); }catch(e){} }
  function get(code){ var v=load()[String(code).toUpperCase()]; return (typeof v==='number'&&v>0)?v:null; }
  function set(code,n){ var m=load(); n=parseInt(n,10); if(n>0) m[String(code).toUpperCase()]=n; else delete m[String(code).toUpperCase()]; save(); }
  function clear(code){ if(code){ var m=load(); delete m[String(code).toUpperCase()]; save(); } else { _m={}; save(); } }
  function all(){ return load(); }
  return { get:get, set:set, clear:clear, all:all };
})();
// Resolve the trial count for a launching task.
//   code         – task code, e.g. 'MMN'
//   practiceN    – if >0 AND this is a practice run, the fixed practice count
//   defaultMain  – coded fallback for the main run
//   isPractice   – whether this launch is practice
function taskTrials(code, practiceN, defaultMain, isPractice){
  if(isPractice && practiceN>0) return practiceN;
  var override=TASK_TRIALS.get(code);
  if(override) return override;
  var shared=parseInt((document.getElementById('trialsInput')||{}).value,10);
  if(shared>0) return shared;
  return defaultMain;
}

// ── Canonical reference per task ────────────────────────────
// One key/primary paper for each paradigm, linked to its PubMed record by PMID.
// cite = short human-readable citation; pmid = PubMed ID (link built at render).
var TASK_REFERENCES = {
  // ── Auditory ERP ──
  P300:   { cite:'Squires, Squires & Hillyard (1975), Electroencephalogr Clin Neurophysiol', pmid:'46819', doi:'10.1016/0013-4694(75)90263-1' },
  MMN:    { cite:'Näätänen, Gaillard & Mäntysalo (1978), Acta Psychol', pmid:'685709', doi:'10.1016/0001-6918(78)90006-9' },
  MMNSP:  { cite:'Näätänen et al. (1997), Nature — phoneme MMN', pmid:'9020359' },
  ORN:    { cite:'Alain, Arnott & Picton (2001), J Exp Psychol Hum Percept Perform', pmid:'11518146' },
  P3A:    { cite:'Polich (2007), Clin Neurophysiol — P3a and P3b', pmid:'17573239' },
  P50:    { cite:'Adler et al. (1982), Biol Psychiatry — P50 gating', pmid:'7104417' },
  N100:   { cite:'Näätänen & Picton (1987), Psychophysiology — N1 review', pmid:'3615753' },
  ASSR:   { cite:'Galambos, Makeig & Talmachoff (1981), PNAS — 40 Hz', pmid:'6941288' },
  LDAEP:  { cite:'Hegerl & Juckel (1993), Biol Psychiatry — loudness dependence', pmid:'8268331' },
  ABR:    { cite:'Jewett & Williston (1971), Brain — far-field auditory', pmid:'5135301' },
  PMN:    { cite:'Connolly & Phillips (1994), J Cogn Neurosci — phonological MMN', pmid:'23964975', doi:'10.1162/jocn.1994.6.3.256' },
  N1P2:   { cite:'Crowley & Colrain (2004), Clin Neurophysiol — N1/P2 review', pmid:'15123056' },
  RON:    { cite:'Schröger & Wolff (1998), NeuroReport — reorienting negativity', pmid:'9831484' },
  P1N1:   { cite:'Näätänen & Picton (1987), Psychophysiology', pmid:'3615753' },

  // ── Visual ERP ──
  N170:   { cite:'Bentin et al. (1996), J Cogn Neurosci — face N170', pmid:'20740065', doi:'10.1162/jocn.1996.8.6.551' },
  VPP:    { cite:'Jeffreys (1996), Vis Neurosci — vertex positive potential', pmid:'8961542' },
  C1:     { cite:'Clark, Fan & Hillyard (1994), Hum Brain Mapp — C1 retinotopy', pmid:'24578035' },
  P100:   { cite:'Di Russo et al. (2002), Hum Brain Mapp — visual evoked sources', pmid:'11835601' },

  SSVEP:  { cite:'Regan (1966), Electroencephalogr Clin Neurophysiol', pmid:'4160391' },
  N2PC:   { cite:'Luck & Hillyard (1994), Psychophysiology — N2pc', pmid:'7972596' },
  CDA:    { cite:'Vogel & Machizawa (2004), Nature — contralateral delay activity', pmid:'15085132' },
  N300:   { cite:'McPherson & Holcomb (1999), Psychophysiology — N300', pmid:'10194964' },

  // ── Language ERP ──
  N400:   { cite:'Kutas & Hillyard (1980), Science — semantic N400', pmid:'7350657' },
  P600:   { cite:'Osterhout & Holcomb (1992), J Mem Lang — syntactic P600', pmid:'', doi:'10.1016/0749-596X(92)90039-Z' },
  ELAN:   { cite:'Friederici, Pfeifer & Hahne (1993), Cogn Brain Res — ELAN', pmid:'8513182' },
  LAN:    { cite:'Friederici (2002), Trends Cogn Sci — language ERPs', pmid:'11849614' },
  ERAN:   { cite:'Koelsch et al. (2000), J Cogn Neurosci — music ERAN', pmid:'10931767' },
  CPS:    { cite:'Steinhauer, Alter & Friederici (1999), Nat Neurosci — closure positive shift', pmid:'10195158' },

  // ── Response / feedback / motor ERP ──
  ERN:    { cite:'Gehring et al. (1993), Psychol Sci — error-related negativity', pmid:'', doi:'10.1111/j.1467-9280.1993.tb00586.x' },
  PE:     { cite:'Falkenstein et al. (1991), Electroencephalogr Clin Neurophysiol — Pe', pmid:'1712280' },

  LRP:    { cite:'Coles (1989), Psychophysiology — lateralized readiness potential', pmid:'2756080' },

  CNV:    { cite:'Walter et al. (1964), Nature — contingent negative variation', pmid:'14143020' },
  CNVW:   { cite:'Walter et al. (1964), Nature — CNV', pmid:'14143020' },
  BP:     { cite:'Kornhuber & Deecke (1965), Pflügers Arch — Bereitschaftspotential', pmid:'5852072' },
  SCP:    { cite:'Birbaumer et al. (1990), Physiol Rev — slow cortical potentials', pmid:'2404287' },
  FRN:    { cite:'Miltner, Braun & Coles (1997), J Cogn Neurosci — feedback negativity', pmid:'23964600', doi:'10.1162/jocn.1997.9.6.788' },
  REWP:   { cite:'Proudfit (2015), Psychophysiology — reward positivity', pmid:'25327938' },
  PD:     { cite:'Hickey, Di Lollo & McDonald (2009), J Cogn Neurosci — Pd distractor', pmid:'18564045' },
  N200:   { cite:'Folstein & Van Petten (2008), Psychophysiology — N2 review', pmid:'17850238' },
  N2B:    { cite:'Folstein & Van Petten (2008), Psychophysiology — N2b', pmid:'17850238' },
  MFN:    { cite:'Gehring & Willoughby (2002), Science — medial frontal negativity', pmid:'11923522' },
  PMN_M:  { cite:'Connolly & Phillips (1994), J Cogn Neurosci', pmid:'23964907' },
  LPC:    { cite:'Curran (2000), Mem Cognit — late positive component / recognition', doi:'10.3758/BF03209340' },

  // ── Attention / Executive ──
  FLANKER:{ cite:'Eriksen & Eriksen (1974), Percept Psychophys — flanker', pmid:'', doi:'10.3758/BF03203267' },
  STROOP: { cite:'Stroop (1935), J Exp Psychol — colour-word interference', pmid:'', doi:'10.1037/h0054651' },
  EMOTSTROOP:{ cite:'Williams, Mathews & MacLeod (1996), Psychol Bull — emotional Stroop', pmid:'8711015' },
  STOP:   { cite:'Logan & Cowan (1984), Psychol Rev — stop-signal', pmid:'', doi:'10.1037/0033-295X.91.3.295' },
  GNG:    { cite:'Donders (1969/1868), Acta Psychol — go/no-go reaction', pmid:'5811531' },
  CPT:    { cite:'Rosvold et al. (1956), J Consult Psychol — continuous performance', pmid:'13367264' },
  SART:   { cite:'Robertson et al. (1997), Neuropsychologia — SART', pmid:'9326273' },
  TASKSWITCH:{ cite:'Rogers & Monsell (1995), J Exp Psychol Gen — task switching', pmid:'', doi:'10.1037/0096-3445.124.2.207' },
  DUALTASK:{ cite:'Pashler (1994), Psychol Bull — dual-task & PRP', pmid:'7972591' },
  POSNER: { cite:'Posner (1980), Q J Exp Psychol — orienting of attention', pmid:'7367577' },
  ATTBLINK:{ cite:'Raymond, Shapiro & Arnell (1992), J Exp Psychol Hum Percept Perform — attentional blink', pmid:'1500880' },
  UFOV:   { cite:'Ball & Owsley (1993), J Am Optom Assoc — useful field of view', pmid:'8454853' },
  NBACK:  { cite:'Kirchner (1958), J Exp Psychol — n-back working memory', doi:'10.1037/h0043688' },
  SUBITIZE:{ cite:'Kaufman, Lord, Reese & Volkmann (1949), Am J Psychol 62:498–525 — subitizing', doi:'10.2307/1418556' },
  SYMSEARCH:{ cite:'Wechsler (1997), WAIS-III — symbol search', pmid:'' },
  DSC:    { cite:'Wechsler — WAIS digit-symbol; Jaeger (2018), J Clin Psychopharmacol 38:513–519 — DSST review', doi:'10.1097/JCP.0000000000000941' },

  // ── Memory ──
  RECALL: { cite:'Banks (1970), Psychol Bull 74:81–99 — signal-detection theory of recognition memory (hits/FA/d′)', doi:'10.1037/h0029531' },
  STB:    { cite:'Sternberg (1966), Science — memory scanning', pmid:'5939936' },
  SPATIAL:{ cite:'Corsi (1972) / Kessels et al. (2000), Appl Neuropsychol — block span', pmid:'10840902' },
  SPATWM: { cite:'Corsi (1972) / Kessels et al. (2000), Appl Neuropsychol', pmid:'10840902' },
  DST:    { cite:'Wechsler (1997), WAIS-III — digit span', pmid:'' },
  PAL:    { cite:'Sahakian et al. (1988), Brain 111:695–718 — paired associates learning (CANTAB)', doi:'10.1093/brain/111.3.695' },
  SRCMEM: { cite:'Johnson, Hashtroudi & Lindsay (1993), Psychol Bull — source monitoring', pmid:'8346328' },
  RAVLT:  { cite:'Rey (1964), orig.; Vakil & Blachstein (1997), Clin Neuropsychol 11:356–369 — RAVLT memory measures incl. recognition', doi:'10.1080/13854049708400464' },
  CVLT:   { cite:'Delis, Kramer, Kaplan & Ober (1987), orig.; Elwood (1995), Neuropsychol Rev 5:173–201 — CVLT psychometrics incl. recognition', doi:'10.1007/BF02214761' },
  PASAT:  { cite:'Gronwall (1977), Percept Mot Skills — PASAT', pmid:'866038' },
  VRT:    { cite:'Benton (1974), Revised Visual Retention Test', pmid:'' },
  PROSMEM:{ cite:'Einstein & McDaniel (1990), J Exp Psychol Learn Mem Cogn — prospective memory', pmid:'2151771' },

  // ── Language / Naming ──
  SEMFLUENCY:{ cite:'Troyer, Moscovitch & Winocur (1997), Neuropsychology — fluency clustering', pmid:'9055277' },
  PHONFLUE:{ cite:'Troyer, Moscovitch & Winocur (1997), Neuropsychology', pmid:'9055277' },
  LEXDEC: { cite:'Meyer & Schvaneveldt (1971), J Exp Psychol — lexical decision', pmid:'5134329' },
  BNT:    { cite:'Kaplan, Goodglass & Weintraub (1983), orig.; Harry & Crowe (2014), Clin Neuropsychol 28:486–504 — review', doi:'10.1080/13854046.2014.892155' },
  PNT:    { cite:'Roach et al. (1996), Clin Aphasiol — Philadelphia Naming Test', pmid:'' },

  // ── Reasoning / Motor ──
  WCST:   { cite:'Grant & Berg (1948), J Exp Psychol — card sorting', pmid:'18874598' },
  TOL:    { cite:'Shallice (1982), Philos Trans R Soc Lond B 298:199–209 — Tower of London', doi:'10.1098/rstb.1982.0082' },
  MATRIX: { cite:'Raven (1938) / Raven (2000), Cogn Psychol — progressive matrices', pmid:'10945922' },
  IGT:    { cite:'Bechara et al. (1994), Cognition — Iowa Gambling Task', pmid:'8039375' },
  PRL:    { cite:'Cools et al. (2002), J Neurosci 22:4563–4567 — probabilistic reversal learning', pmid:'12040063', pmidVerified:true, doi:'10.1523/JNEUROSCI.22-11-04563.2002' },
  DD:     { cite:'Myerson, Green & Warusawitharana (2001), J Exp Anal Behav 76:235–243 — area-under-curve discounting', doi:'10.1901/jeab.2001.76-235' },
  SRTT:   { cite:'Nissen & Bullemer (1987), Cognit Psychol 19:1–32 — serial reaction time / implicit sequence learning', doi:'10.1016/0010-0285(87)90002-8' },
  BART:   { cite:'Lejuez et al. (2002), J Exp Psychol Appl 8:75–84 — Balloon Analogue Risk Task', pmid:'12075692', pmidVerified:true, doi:'10.1037/1076-898X.8.2.75' },
  OSPAN:  { cite:'Unsworth, Heitz, Schrock & Engle (2005), Behav Res Methods 37:498–505 — automated operation span', pmid:'16405146', pmidVerified:true, doi:'10.3758/BF03192720' },
  TBIS:   { cite:'Wearden (1991), Q J Exp Psychol 43B:59–81 — human interval bisection', doi:'10.1080/14640749108401259' },
  JLO:    { cite:'Benton et al. (1978), Arch Neurol — judgment of line orientation', pmid:'655909' },
  TMT:    { cite:'Reitan (1958), Percept Mot Skills — Trail Making Test', pmid:'' },
  FTT:    { cite:'Reitan & Wolfson (1985), Halstead-Reitan — finger tapping; norms Ruff & Parker (1993), Percept Mot Skills 76:1219–1230', doi:'10.2466/pms.1993.76.3c.1219' },
  MRT:    { cite:'Shepard & Metzler (1971), Science — mental rotation', pmid:'5546877' },
  CSR:    { cite:'Robinson et al. — visual search / conjunction (Treisman & Gelade 1980, Cogn Psychol)', pmid:'7351125' },
  META:   { cite:'Fleming & Lau (2014), Front Hum Neurosci — metacognition', pmid:'25076880' },
  TOJ:    { cite:'Spence & Parise (2010), Conscious Cogn — temporal order judgment', pmid:'20056554' },

  // ── Social cognition ──
  RMET:   { cite:'Baron-Cohen et al. (2001), J Child Psychol Psychiatry — Eyes Test', pmid:'11280420' },
  FER:    { cite:'Ekman & Friesen (1976), Pictures of Facial Affect', pmid:'' },

  // ── Clinical scales ──
  MOCA:   { cite:'Nasreddine et al. (2005), J Am Geriatr Soc — MoCA', pmid:'15817019' },
  PHQ9:   { cite:'Kroenke, Spitzer & Williams (2001), J Gen Intern Med — PHQ-9', pmid:'11556941' },
  GAD7:   { cite:'Spitzer et al. (2006), Arch Intern Med — GAD-7', pmid:'16717171' },
  PCL5:   { cite:'Blevins et al. (2015), J Trauma Stress — PCL-5', pmid:'26606250' },
  AUDIT:  { cite:'Saunders et al. (1993), Addiction — AUDIT', pmid:'8329970' },
  ASRS:   { cite:'Kessler et al. (2005), Psychol Med — ASRS adult ADHD', pmid:'15841682' },
  HACHINSKI:{ cite:'Hachinski et al. (1975), Arch Neurol — ischemic score', pmid:'1191056' },
  KATZ:   { cite:'Katz et al. (1963), JAMA — ADL index', pmid:'14044222' },
  LAWTON: { cite:'Lawton & Brody (1969), Gerontologist — IADL', pmid:'5349366' },
  CDT:    { cite:'Shulman (2000), Int J Geriatr Psychiatry — clock drawing', pmid:'10918348' },

  // ── Sensory screens ──
  SNELLEN:{ cite:'Snellen (1862) / Hetherington (1954), Br J Ophthalmol — acuity', pmid:'' },
  ISHIHARA:{ cite:'Ishihara (1917) / Birch (1997), Ophthalmic Physiol Opt — colour vision', pmid:'9425889' },
  SEASHORE:{ cite:'Seashore (1919) / Brualla et al. (1998) — measures of musical talent', pmid:'' },
  AUDIOM: { cite:'Carhart & Jerger (1959), J Speech Hear Disord — Hughson-Westlake', pmid:'' },
  GABOR:  { cite:'Campbell & Robson (1968), J Physiol — contrast sensitivity', pmid:'5666169' },
  DIGCAN: { cite:'Diller et al. (1974), orig.; Hatta et al. (2012), Psychologia — digit cancellation (D-CAT)', doi:'10.2117/psysoc.2012.246' },
  STAR:   { cite:'Wilson, Cockburn & Halligan (1987), Arch Phys Med Rehabil 68:98–102 — star cancellation (BIT)', pmid:'3813864', pmidVerified:true },
  SPR:    { cite:'Sternberg (1966), Science — serial probe recognition', pmid:'5939936' },
  'SPR-A':{ cite:'Sternberg (1966), Science — auditory serial probe', pmid:'5939936' },
  MTS:    { cite:'Roberts et al. — delayed matching-to-sample (CANTAB; Sahakian et al. 1988, Brain)', pmid:'3179690' },
  THALPHA:{ cite:'Klimesch (1999), Brain Res Rev — theta/alpha oscillations', pmid:'10209231' },
};

// Render the reference line on the intro screen for a task (PubMed link if PMID).
function _renderTaskReference(task){
  var el=document.getElementById('introReference');
  if(!el) return;
  var ref=TASK_REFERENCES[String(task).toUpperCase()] || TASK_REFERENCES[task];
  if(!ref || !ref.cite){ el.style.display='none'; el.innerHTML=''; return; }
  var label='Key reference: '+ref.cite;
  var linkHTML;
  if(ref.doi){
    // DOI is the publisher's permanent identifier and resolves straight to the
    // paper — preferred link.
    linkHTML=' &middot; <a href="https://doi.org/'+encodeURIComponent(ref.doi)+'" target="_blank" rel="noopener" style="color:var(--gold-lt);text-decoration:underline;">DOI</a>';
  } else if(ref.pmid && ref.pmidVerified){
    // Only link a raw PMID if it has been explicitly verified against PubMed.
    linkHTML=' &middot; <a href="https://pubmed.ncbi.nlm.nih.gov/'+encodeURIComponent(ref.pmid)+'/" target="_blank" rel="noopener" style="color:var(--gold-lt);text-decoration:underline;">PubMed</a>';
  } else {
    // No verified identifier → search PubMed on the citation. A search always
    // lands on the correct paper; it can never point to a wrong one (unlike an
    // unverified numeric PMID).
    linkHTML=' &middot; <a href="https://pubmed.ncbi.nlm.nih.gov/?term='+encodeURIComponent(ref.cite)+'" target="_blank" rel="noopener" style="color:var(--gold-lt);text-decoration:underline;">search PubMed</a>';
  }
  el.innerHTML='<span style="color:var(--gold);">Key reference:</span> '+ref.cite.replace(/</g,'&lt;')+linkHTML;
  el.style.display='block';
}

const EDITOR_FIELDS = {
  GNG:    [
    {key:'trials',  label:'How many trials should run?',           type:'number', min:4,   max:120, unit:'trials'},
    {key:'goProb',  label:'How often should the GO stimulus appear?', type:'number', min:0.1, max:0.9, step:0.05, unit:'(0–1)'},
    {key:'stimDur', label:'How long does each stimulus stay on screen?', type:'number', min:100, max:2000, unit:'ms'},
    {key:'isiMin',  label:'Shortest gap between stimuli?',         type:'number', min:200, max:3000, unit:'ms'},
    {key:'isiMax',  label:'Longest gap between stimuli?',          type:'number', min:200, max:3000, unit:'ms'},
  ],
  NBACK:  [
    {key:'trials',    label:'How many trials should run?',                      type:'number', min:4,   max:120, unit:'trials'},
    {key:'n',         label:'How many steps back should the participant remember?', type:'number', min:1, max:5,   unit:'(1=easy, 4=hard)'},
    {key:'matchProb', label:'How often should a matching letter appear?',       type:'number', min:0.1, max:0.5, step:0.05, unit:'(0–1)'},
    {key:'stimDur',   label:'How long does each letter stay on screen?',        type:'number', min:100, max:2000, unit:'ms'},
    {key:'isi',       label:'Gap between letters?',                             type:'number', min:500, max:4000, unit:'ms'},
  ],
  SPATIAL:[
    {key:'trials',  label:'How many trials should run?',                type:'number', min:4,  max:120, unit:'trials'},
    {key:'stimDur', label:'How long is the target cell highlighted?',   type:'number', min:50, max:1000, unit:'ms'},
    {key:'isiMin',  label:'Shortest gap between targets?',              type:'number', min:200,max:2000, unit:'ms'},
    {key:'isiMax',  label:'Longest gap between targets?',               type:'number', min:200,max:2000, unit:'ms'},
  ],
  POSNER: [
    {key:'trials',   label:'How many trials should run?',                       type:'number', min:4,  max:120, unit:'trials'},
    {key:'validity', label:'How often does the cue point to the correct side?', type:'number', min:50, max:100, unit:'%'},
    {key:'soa',      label:'How long after the cue does the target appear?',    type:'number', min:50, max:800,  unit:'ms'},
  ],
  CSR:    [
    {key:'trials',      label:'How many trials should run?',                type:'number', min:4,  max:120, unit:'trials'},
    {key:'targetProb',  label:'How often should a target reversal appear?', type:'number', min:5,  max:50,  unit:'%'},
    {key:'reversalHz',  label:'How fast should the checkerboard flip?',     type:'number', min:1,  max:8,   unit:'flips/sec'},
  ],
  P300:   [
    {key:'trials',  label:'How many tones should play?',                type:'number', min:10, max:200, unit:'tones'},
    {key:'stdFreq', label:'Pitch of the common tone?',                  type:'number', min:200,max:2000, unit:'Hz'},
    {key:'oddFreq', label:'Pitch of the rare target tone?',             type:'number', min:200,max:4000, unit:'Hz'},
    {key:'oddProb', label:'How often should the rare tone appear?',     type:'number', min:5,  max:40,   unit:'%'},
    {key:'stimDur', label:'How long should each tone last?',            type:'number', min:20, max:500,  unit:'ms'},
  ],
  VRT:    [
    {key:'studyN', label:'How many patterns should be studied?',    type:'number', min:2, max:12, unit:'patterns'},
    {key:'testN',  label:'How many recognition tests should run?',  type:'number', min:2, max:12, unit:'tests'},
  ],
  WCST:   [
    {key:'maxRuns', label:'How many times should the sorting rule change?', type:'number', min:1, max:8, unit:'changes'},
  ],
  STB:    [
    {key:'trials',   label:'How many trials should run?',               type:'number', min:4,  max:80,  unit:'trials'},
    {key:'stimDur',  label:'How long does each letter stay on screen?', type:'number', min:200,max:2000, unit:'ms'},
    {key:'retDur',   label:'How long is the retention interval?',       type:'number', min:500,max:4000, unit:'ms'},
  ],
  FLANKER:[
    {key:'trials',   label:'How many trials should run?',               type:'number', min:8,  max:120, unit:'trials'},
    {key:'stimDur',  label:'How long does the arrow display stay on?',  type:'number', min:100,max:1000, unit:'ms'},
    {key:'deadline', label:'Response deadline per trial?',              type:'number', min:300,max:2000, unit:'ms'},
  ],
  STOP:   [
    {key:'trials',   label:'How many trials should run?',               type:'number', min:10, max:120, unit:'trials'},
    {key:'stopProb', label:'How often does a stop signal appear?',      type:'number', min:10, max:50,  unit:'%'},
    {key:'initSSD',  label:'Initial stop-signal delay?',               type:'number', min:50, max:500, unit:'ms'},
  ],
  N400:   [
    {key:'trials',   label:'How many word pairs should be presented?',  type:'number', min:8,  max:80,  unit:'trials'},
    {key:'incongProb',label:'How often should incongruent pairs appear?',type:'number', min:10, max:50, unit:'%'},
    {key:'stimDur',  label:'How long does the target word stay on screen?',type:'number',min:300,max:1500,unit:'ms'},
  ],
  P600:   [
    {key:'trials',   label:'How many sentences should be presented?',   type:'number', min:8,  max:80,  unit:'trials'},
    {key:'violProb', label:'How often should a grammatical violation appear?',type:'number',min:10,max:50,unit:'%'},
    {key:'stimDur',  label:'How long does the critical word stay on screen?',type:'number',min:300,max:1500,unit:'ms'},
  ],
  ERN:    [
    {key:'trials',   label:'How many trials should run?',               type:'number', min:10, max:120, unit:'trials'},
    {key:'deadline', label:'Response deadline (to force errors)?',      type:'number', min:200,max:800, unit:'ms'},
  ],
  FTT:    [
    {key:'trialDur', label:'How long is each tapping trial?',          type:'number', min:5,  max:30, unit:'seconds'},
    {key:'nTrials',  label:'How many trials per subtest?',             type:'number', min:1,  max:6,  unit:'trials'},
    {key:'itiDur',   label:'Rest between trials?',                    type:'number', min:1,  max:10, unit:'seconds'},
  ],
  CNV:    [
    {key:'trials',    label:'How many trials should run?',            type:'number', min:10, max:80,  unit:'trials'},
    {key:'foreperiod',label:'S1-to-S2 interval (foreperiod)?',        type:'number', min:500,max:4000, unit:'ms'},
    {key:'catchProb', label:'How often should catch trials appear?',  type:'number', min:0,  max:50,  unit:'%'},
    {key:'s1Dur',     label:'How long is the warning tone?',          type:'number', min:50, max:500, unit:'ms'},
    {key:'s2Dur',     label:'How long does S2 stay on screen?',       type:'number', min:500,max:3000, unit:'ms'},
  ],
  DST:    [
    {key:'digitRate', label:'How long does each digit stay on screen?', type:'number', min:400, max:2000, unit:'ms'},
    {key:'maxSpan',   label:'Maximum sequence length to test?',         type:'number', min:5,   max:12,   unit:'digits'},
  ],
  STROOP: [
    {key:'trials',  label:'How many trials should run?',              type:'number', min:10, max:120, unit:'trials'},
    {key:'stimDur', label:'How long does the word stay on screen?',   type:'number', min:500,max:3000, unit:'ms'},
    {key:'congPct', label:'Percent congruent trials?',                type:'number', min:10, max:60,  unit:'%'},
    {key:'incPct',  label:'Percent incongruent trials?',              type:'number', min:10, max:60,  unit:'%'},
  ],
  MMN:    [
    {key:'trials',   label:'How many tones should be presented?',       type:'number', min:20, max:200, unit:'tones'},
    {key:'stdFreq',  label:'Standard (frequent) tone frequency?',       type:'number', min:200,max:2000, unit:'Hz'},
    {key:'devFreq',  label:'Deviant (oddball) tone frequency?',         type:'number', min:200,max:4000, unit:'Hz'},
    {key:'devProb',  label:'How often should the deviant appear?',      type:'number', min:5,  max:30,  unit:'%'},
    {key:'isi',      label:'Gap between tones?',                        type:'number', min:200,max:1000, unit:'ms'},
  ],
};

let editorActiveTask = 'GNG';

function openEditor() {
  hideAll();
  $('editorScreen').style.display='flex';
  editorBuildTabs();
  editorSelectTask('GNG');
}

function editorBuildTabs() {
  const tabsEl = $('editorTabs');
  tabsEl.innerHTML = '';
  Object.keys(EDITOR_FIELDS).forEach(key => {
    const btn = document.createElement('button');
    btn.className = 'editor-tab' + (key===editorActiveTask?' active':'');
    btn.textContent = key;
    btn.onclick = () => editorSelectTask(key);
    tabsEl.appendChild(btn);
  });
}

function editorSelectTask(key) {
  editorActiveTask = key;
  // Update tab highlight
  $('editorTabs').querySelectorAll('.editor-tab').forEach(t=>{
    t.classList.toggle('active', t.textContent===key);
  });
  // Description
  const p = PARADIGMS[key];
  $('editorDesc').style.display='none';
  // Build fields
  const fields = EDITOR_FIELDS[key] || [];
  const cfg = TASK_CONFIG[key] || {};
  const fieldsEl = $('editorFields');
  fieldsEl.innerHTML = '';
  fields.forEach(f => {
    const wrap = document.createElement('div');
    wrap.className = 'editor-field';
    const label = document.createElement('label');
    label.textContent = f.label;
    const row = document.createElement('div');
    row.style.cssText = 'display:flex;gap:6px;align-items:center;';
    const inp = document.createElement('input');
    inp.type = f.type || 'number';
    if(f.min !== undefined) inp.min = f.min;
    if(f.max !== undefined) inp.max = f.max;
    if(f.step !== undefined) inp.step = f.step;
    inp.value = cfg[f.key] !== undefined ? cfg[f.key] : TASK_DEFAULTS[key][f.key];
    inp.dataset.key = f.key;
    inp.style.cssText = 'width:80px;flex-shrink:0;';
    const unit = document.createElement('span');
    unit.textContent = f.unit || '';
    unit.style.cssText = 'font-size:0.72rem;color:var(--dim);letter-spacing:0.06em;';
    row.append(inp, unit);
    wrap.append(label, row);
    fieldsEl.appendChild(wrap);
  });
  $('editorSavedBadge').style.opacity='0';
}

function editorSave() {
  const key = editorActiveTask;
  const cfg = TASK_CONFIG[key];
  $('editorFields').querySelectorAll('input').forEach(inp => {
    const k = inp.dataset.key;
    let val = parseFloat(inp.value);
    if(isNaN(val)) val = inp.value;
    cfg[k] = val;
  });
  // Apply to live task objects
  editorApply(key);
  const badge = $('editorSavedBadge');
  badge.style.opacity='1';
  setTimeout(()=>{ badge.style.opacity='0'; }, 1800);
}

function editorReset() {
  const key = editorActiveTask;
  TASK_CONFIG[key] = JSON.parse(JSON.stringify(TASK_DEFAULTS[key]));
  editorApply(key);
  editorSelectTask(key);
}

function editorApply(key) {
  const cfg = TASK_CONFIG[key];
  if(key==='CSR')  { CSR_TARGET_PROB_LIVE = cfg.targetProb/100; CSR.reversalHz=cfg.reversalHz; }
  if(key==='P300') { P300.stdFreq=cfg.stdFreq; P300.oddFreq=cfg.oddFreq; P300.oddProb=cfg.oddProb/100; P300.stimDur=cfg.stimDur; }
  if(key==='POSNER'){ $('posnerValidity').value=cfg.validity; $('posnerSOA').value=cfg.soa; }
  if(key==='FTT'){ FTT.trialDur=cfg.trialDur; FTT.nTrials=cfg.nTrials; FTT.itiDur=cfg.itiDur; }
  if(key==='CNV'){ CNV.foreperiod=cfg.foreperiod; CNV.catchProb=cfg.catchProb/100; CNV.s1Dur=cfg.s1Dur; CNV.s2Dur=cfg.s2Dur; }
  if(key==='DST'){ DST.digitRate=cfg.digitRate; DST.maxSpan=cfg.maxSpan; }
  if(key==='STROOP'){ STROOP.stimDur=cfg.stimDur; }
  // For GNG/NBACK/SPATIAL the selectTask() function reads trialsInput;
  // store in config and read at task start
}
let CSR_TARGET_PROB_LIVE = CSR_TARGET_PROB;


// ══════════════════════════════════════════
// PHOTOCELL TRIGGER ENGINE
// White flash in lower-right corner on every
// stimulus onset. Detected by photocell
// attached to EEG/physio recording system.
// ══════════════════════════════════════════
const TRIG = {
  enabled:  true,
  duration: 50,    // ms flash duration
  _tid:     null,
  _raf:     null,
};
try{ window.TRIG = TRIG; }catch(e){}  // harness exposure (verify flash cleanup)

function triggerFlash() {
  if(!TRIG.enabled) return;
  // Guard: only flash while a task is actually active. A stray per-task timer
  // that fires after abort/reset (when currentIntroTask is null) must NOT paint
  // a flash on the home screen.
  if(typeof currentIntroTask==='undefined' || currentIntroTask===null) return;
  const bar = document.getElementById('trigger-bar');
  if(!bar) return;
  bar.classList.add('armed');   // make the bar visible while a task is flashing
  // Fire one rAF before stimulus — flash leads stimulus by one frame
  TRIG._raf = requestAnimationFrame(() => {
    TRIG._raf = null;
    clearTimeout(TRIG._tid);
    bar.classList.add('flash');
    TRIG._tid = setTimeout(() => bar.classList.remove('flash'), TRIG.duration);
  });
}
// Cancel any pending photic flash (both the queued rAF and the removal timer)
// and clear the lit state — called on abort/reset so the trigger bar can't be
// left flashing, or fire a deferred flash, after a task ends.
function stopTriggerFlash() {
  if(TRIG._raf){ cancelAnimationFrame(TRIG._raf); TRIG._raf = null; }
  clearTimeout(TRIG._tid); TRIG._tid = null;
  const bar = document.getElementById('trigger-bar');
  if(bar){ bar.classList.remove('flash'); bar.classList.remove('armed'); }
}

function triggerToggle() {
  TRIG.enabled = !TRIG.enabled;
  const btn = document.getElementById('trigger-enable-btn');
  btn.textContent = TRIG.enabled ? 'ON' : 'OFF';
  btn.classList.toggle('active', TRIG.enabled);
  document.getElementById('trigger-bar').style.background = '#000';
}

function triggerResize(v) {
  document.getElementById('trigger-bar').style.width  = v + 'px';
  document.getElementById('trigger-bar').style.height = v + 'px';
  document.getElementById('trigger-size-val').textContent = v + 'px';
}

function triggerDurChange(v) {
  TRIG.duration = parseInt(v);
  document.getElementById('trigger-dur-val').textContent = v + 'ms';
}

function triggerTest() {
  triggerFlash();
}


// ══════════════════════════════════════════
// MEDIA PLAYER ENGINE
// ══════════════════════════════════════════
const MP = {
  loaded:    false,
  isVideo:   false,
  trigOn:    true,
  _seekDrag: false,
};

function openMediaPlayer(goHome) {
  if(goHome === false) {
    hideAll(); $('home').style.display='flex'; return;
  }
  // Show media screen using cognos hideAll pattern
  hideAll();
  const ms = document.getElementById('scr-media');
  if(ms) ms.style.display = 'flex';
  $('si-task').textContent = 'MEDIA';
}

function mpPickFile() {
  document.getElementById('mp-file-input').click();
}

function mpLoadFile(input) {
  const file = input.files[0];
  if(!file) return;

  const url = URL.createObjectURL(file);
  const vid = document.getElementById('mp-video');
  const isVideo = file.type.startsWith('video/');
  MP.isVideo = isVideo;
  MP.loaded  = true;

  vid.src = url;
  vid.load();

  // Show correct UI
  document.getElementById('mp-drop').style.display  = 'none';
  document.getElementById('mp-main').style.display  = 'flex';
  document.getElementById('mp-video').style.display = isVideo ? 'block' : 'none';
  document.getElementById('mp-audio-vis').style.display = isVideo ? 'none' : 'flex';

  const name = file.name.replace(/\.[^.]+$/, '');
  document.getElementById('mp-fname').textContent = file.name;
  document.getElementById('mp-audio-title').textContent = name;

  // Events
  vid.onloadedmetadata = () => {
    document.getElementById('mp-seek').max = vid.duration;
    mpUpdateTime();
  };
  vid.ontimeupdate = () => {
    if(!MP._seekDrag) {
      document.getElementById('mp-seek').value = vid.currentTime;
      mpUpdateTime();
    }
  };
  vid.onplay  = () => {
    document.getElementById('mp-play-btn').textContent = '⏸';
    if(MP.trigOn) triggerFlash();
  };
  vid.onpause = () => {
    document.getElementById('mp-play-btn').textContent = '▶';
    if(MP.trigOn) triggerFlash();
  };
  vid.onseeked = () => {
    if(MP.trigOn) triggerFlash();
  };
  vid.onended = () => {
    document.getElementById('mp-play-btn').textContent = '▶';
  };

  // Reset input so same file can be reloaded
  input.value = '';
}

function mpTogglePlay() {
  const vid = document.getElementById('mp-video');
  if(!MP.loaded) return;
  vid.paused ? vid.play() : vid.pause();
}

function mpSeek(val) {
  MP._seekDrag = true;
  const vid = document.getElementById('mp-video');
  vid.currentTime = parseFloat(val);
  mpUpdateTime();
  clearTimeout(MP._seekTid);
  MP._seekTid = setTimeout(() => { MP._seekDrag = false; }, 200);
}

function mpSkip(sec) {
  const vid = document.getElementById('mp-video');
  if(!MP.loaded) return;
  vid.currentTime = Math.max(0, Math.min(vid.duration||0, vid.currentTime + sec));
  if(MP.trigOn) triggerFlash();
}

function mpSetVol(val) {
  document.getElementById('mp-video').volume = parseFloat(val);
}

function mpUpdateTime() {
  const vid = document.getElementById('mp-video');
  const fmt = s => {
    s = Math.floor(s||0);
    const m = Math.floor(s/60), ss = s%60;
    return m+':'+(ss<10?'0':'')+ss;
  };
  document.getElementById('mp-time').textContent =
    fmt(vid.currentTime) + ' / ' + fmt(vid.duration);
}

function mpTrigToggle() {
  MP.trigOn = !MP.trigOn;
  const btn = document.getElementById('mp-trig-tog');
  btn.textContent = MP.trigOn ? '⬡ TRIG ON' : '⬡ TRIG OFF';
  btn.classList.toggle('off', !MP.trigOn);
}

// Space bar to play/pause when media screen active
document.addEventListener('keydown', e => {
  if(e.code === 'Space' && document.getElementById('scr-media').classList.contains('on')) {
    e.preventDefault();
    mpTogglePlay();
  }
});

// Drag and drop onto media screen
document.getElementById('scr-media')?.addEventListener('dragover', e => {
  e.preventDefault();
  document.getElementById('mp-drop')?.classList.add('over');
});
document.getElementById('scr-media')?.addEventListener('dragleave', () => {
  document.getElementById('mp-drop')?.classList.remove('over');
});
document.getElementById('scr-media')?.addEventListener('drop', e => {
  e.preventDefault();
  document.getElementById('mp-drop')?.classList.remove('over');
  const file = e.dataTransfer?.files[0];
  if(file && (file.type.startsWith('video/') || file.type.startsWith('audio/'))) {
    const dt = new DataTransfer();
    dt.items.add(file);
    const inp = document.getElementById('mp-file-input');
    inp.files = dt.files;
    mpLoadFile(inp);
  }
});


// ── NEW PARADIGMS ──────────────────────────────────────────
Object.assign(PARADIGMS, {
  TMT: {
    name: 'TRAIL MAKING TEST',
    body: 'Connect numbered and lettered circles in sequence. Part A tests processing speed; Part B tests cognitive flexibility by requiring you to alternate between numbers and letters.',
    rules: [
      { key: 'CLICK', desc: 'Click circles in the correct sequence as fast as possible' },
      { key: 'PART A', desc: 'Connect numbers 1 → 2 → 3 … in ascending order' },
      { key: 'PART B', desc: 'Alternate numbers and letters: 1 → A → 2 → B → 3 → C …' },
      { key: 'ERRORS', desc: 'Errors counted — click the correct target to continue' },
      { key: 'SCORE', desc: 'Completion time, errors, and mean inter-click interval' }
    ]
  },
  DSC: {
    name: 'DIGIT SYMBOL CODING',
    body: 'A key pairs each digit 1–9 with a unique symbol. Fill in the matching symbol for each digit as fast as possible. 90-second timed task — a classic measure of processing speed (WAIS-IV subtest).',
    rules: [
      { key: 'SELECT', desc: 'Click a symbol in the palette to select it' },
      { key: 'FILL', desc: 'Click an empty box to place the selected symbol' },
      { key: 'KEYS 1–9', desc: 'Press a digit key to quickly select that symbol' },
      { key: 'TIME', desc: '90-second limit — work left to right as fast as possible' },
      { key: 'SCORE', desc: 'Number of correct symbols entered within the time limit' }
    ]
  },
  PNT: {
    name: 'PICTURE NAMING',
    body: 'A detailed illustration of a common object appears on screen. Name it aloud as quickly and accurately as possible. Speech recognition scores your response and records reaction time.',
    rules: [
      { key: 'SPEAK', desc: 'Name the pictured object aloud as fast as possible' },
      { key: 'MIC', desc: 'Click the microphone button to start listening' },
      { key: 'SCORING', desc: 'Correct if response matches target name or synonym' },
      { key: 'RT', desc: 'Reaction time measured from mic activation to response' },
      { key: 'REQUIRES', desc: 'Microphone access required — allow when prompted' }
    ]
  },
  N400: {
    name: 'N400 SEMANTIC PRIMING',
    body: 'The N400 paradigm measures semantic integration. A sentence appears word by word. The final word either fits the sentence naturally (congruent) or is semantically incongruent. Decide whether the final word fits the sentence context. The N400 ERP is larger for incongruent completions — the RT difference between conditions is the behavioural N400 effect.',
    rules: [
      { key: 'F',           desc: 'FITS — the final word makes sense in the sentence' },
      { key: 'J',           desc: 'DOESN\'T FIT — the final word is semantically incongruent' },
      { key: 'VOICE',       desc: 'Say "fits" or "odd" when mic mode is active' },
      { key: 'SENTENCE',    desc: 'Each word appears one at a time — read them in sequence' },
      { key: 'FIXATION',    desc: 'A + cross appears between each word as a brief pause (1 s on / 1 s off)' },
      { key: 'TARGET',      desc: 'The final word appears — decide: real word or non-word?' },
      { key: 'CONGRUENT',   desc: 'Target fits the sentence (…butter on her slice of BREAD)' },
      { key: 'INCONGRUENT', desc: 'Target violates the sentence (…butter on her slice of CABINET)' },
      { key: 'N400 EFFECT', desc: 'Incongruent RT − Congruent RT (larger = stronger violation effect)' }
    ]
  },
  FLANKER: {
    name: 'ERIKSEN FLANKER',
    body: 'Arrows appear in a row. Respond to the direction of the central arrow, ignoring the flanking arrows. Congruent trials (all arrows same direction) are faster than incongruent trials (flankers opposite). The N2 component indexes conflict detection; the P3 indexes response selection.',
    rules: [
      { key: 'F / LEFT',    desc: 'Central arrow points LEFT  ←' },
      { key: 'J / RIGHT',   desc: 'Central arrow points RIGHT →' },
      { key: 'CONGRUENT',   desc: 'All arrows same direction  →→→→→  (fast)' },
      { key: 'INCONGRUENT', desc: 'Flankers oppose centre     →→←→→  (slower)' },
      { key: 'NEUTRAL',     desc: 'Flankers are dashes        ——←——' },
      { key: 'N2 EFFECT',   desc: 'Incongruent RT − Congruent RT = conflict cost' }
    ]
  },
  STOP: {
    name: 'STOP SIGNAL',
    body: 'Respond to left/right arrows as fast as possible. On ~25% of trials a stop signal (beep) sounds — withhold your response. Stop-Signal Reaction Time (SSRT) indexes inhibitory control speed. The staircase adjusts stop-signal delay to keep inhibition near 50%.',
    rules: [
      { key: 'F / LEFT',    desc: 'Arrow points left — respond quickly' },
      { key: 'J / RIGHT',   desc: 'Arrow points right — respond quickly' },
      { key: 'BEEP',        desc: 'Stop signal sounds — withhold your response immediately' },
      { key: 'SSRT',        desc: 'Stop-Signal RT = Mean Go RT − Final SSD' },
      { key: 'RATE',        desc: '~25% of trials are stop trials' }
    ]
  },
  MMN: {
    name: 'MISMATCH NEGATIVITY',
    body: 'Passive auditory oddball — no response required. A stream of standard tones plays with rare deviant tones (different pitch). The MMN ERP peaks 100–250 ms after the deviant, reflecting pre-attentive auditory discrimination. Simply sit and listen.',
    rules: [
      { key: 'PASSIVE',     desc: 'No response needed — just listen (or read quietly)' },
      { key: 'STANDARD',    desc: 'Frequent 1000 Hz tone — 80% of trials' },
      { key: 'DEVIANT',     desc: 'Rare 1200 Hz tone — 20% of trials' },
      { key: 'MMN',         desc: 'Negative deflection 100–250 ms post-deviant, fronto-central' },
      { key: 'DURATION',    desc: 'Task runs automatically — sit quietly until complete' }
    ]
  },
  P600: {
    name: 'P600 SYNTACTIC',
    body: 'Sentences appear word by word. The final word either completes the sentence grammatically or contains a syntactic violation. Decide whether the sentence is grammatically correct. The P600 ERP (500–800 ms) is selectively larger for syntactic violations, dissociable from the N400 semantic effect.',
    rules: [
      { key: 'F',           desc: 'CORRECT — sentence is grammatically well-formed' },
      { key: 'J',           desc: 'VIOLATION — sentence contains a grammatical error' },
      { key: 'RSVP',        desc: 'Words appear one at a time — 1 s on / 0.5 s fixation' },
      { key: 'RATIO',       desc: '70% grammatical / 30% violation sentences' },
      { key: 'P600 EFFECT', desc: 'Violation RT − Correct RT (positive = P600)' }
    ]
  },
  FTT: {
    name: 'FINGER TAPPING TASK',
    body: 'The Finger Tapping Task measures motor speed and coordination. Three subtests are administered: dominant hand (tap as fast as possible with the index finger), non-dominant hand (same, other hand), and alternating (strict left-right alternation, F then J). Each subtest consists of three 10-second trials. Key metrics are taps per trial, inter-tap interval (mean and SD for regularity), the dominant/non-dominant asymmetry ratio (normal ~10–15% faster dominant), and the alternating coordination index. Modelled on the Halstead-Reitan Finger Tapping Test.',
    rules: [
      { key: 'DOM: SPACE or F', desc: 'Dominant hand — tap as fast as possible' },
      { key: 'NON-DOM: SPACE or J', desc: 'Non-dominant hand — same, other hand' },
      { key: 'ALT: F then J', desc: 'Alternating — strict left-right sequence, F then J then F…' },
      { key: '10 seconds',    desc: 'Each trial lasts 10 seconds — tap continuously' },
      { key: '3 trials each', desc: 'Three trials per subtest — mean is the score' },
      { key: 'REST',          desc: 'Brief rest between trials to prevent fatigue' },
    ]
  },
  CNV: {
    name: 'CONTINGENT NEGATIVE VARIATION',
    body: "The CNV paradigm measures anticipatory brain activity. A warning tone (S1) signals that an imperative stimulus (S2) will follow after a fixed foreperiod. Respond to S2 with SPACE as quickly as possible. On catch trials (no S2), withhold the response. The CNV is a slow negative ERP that builds during the foreperiod, reflecting motor preparation and temporal expectancy. RT is typically faster with longer foreperiods — the foreperiod effect. False alarms on catch trials index impulsivity.",
    rules: [
      { key: 'S1 (tone)',  desc: 'Warning signal — a brief tone indicates S2 is coming' },
      { key: 'S2 (circle)',desc: 'Imperative stimulus — press SPACE as fast as possible' },
      { key: 'CATCH',      desc: 'Some trials have no S2 — withhold the response' },
      { key: 'SPACE',      desc: 'Only valid response key — press on S2, not S1' },
      { key: 'WAIT',       desc: 'Do not respond before S2 appears — anticipate but wait' },
    ]
  },
  DST: {
    name: 'DIGIT SPAN',
    body: 'Digit Span measures verbal working memory capacity. A sequence of single digits is presented one at a time at a steady rate. In the Forward subtest, repeat the digits in the same order. In the Backward subtest, repeat them in reverse. Sequences start at length 3 and grow by one digit after two correct trials at each length. Two failures at the same length terminates that subtest. Span score = longest correctly recalled sequence length. Modelled on the WAIS-IV Digit Span subtest.',
    rules: [
      { key: 'WATCH',    desc: 'Digits appear one at a time — remember the full sequence' },
      { key: 'FORWARD',  desc: 'Repeat digits in the SAME order they appeared' },
      { key: 'BACKWARD', desc: 'Repeat digits in REVERSE order' },
      { key: 'NUMPAD',   desc: 'Enter digits using the on-screen pad or keyboard (0–9)' },
      { key: 'CONFIRM',  desc: 'Press ✓ or Enter when your sequence is complete' },
      { key: 'STAIRCASE', desc: 'Correct → sequence grows; 2 failures at same length → subtest ends' },
    ]
  },
  STROOP: {
    name: 'STROOP COLOR-WORD',
    body: 'The Stroop paradigm measures selective attention and cognitive control. A color word is displayed in a font color that is either congruent (RED in red), incongruent (RED in blue), or neutral (XXX in red). Respond to the INK COLOR — ignore the word. Incongruent trials slow responses and increase errors, revealing the cost of suppressing an automatic reading response. The Stroop interference effect (incongruent − congruent RT) is a robust index of executive control.',
    rules: [
      { key: 'F / G / H / J', desc: 'Respond to ink COLOR: F=Red · G=Green · H=Blue · J=Yellow' },
      { key: 'IGNORE WORD',   desc: 'The printed word is a distractor — respond only to the ink color' },
      { key: 'CONGRUENT',     desc: 'Word and color match — these are faster' },
      { key: 'INCONGRUENT',   desc: 'Word and color conflict — these reveal Stroop interference' },
      { key: 'NEUTRAL',       desc: 'Non-color word (XXX) in a colored ink — baseline condition' },
      { key: 'SPEED',         desc: 'Respond as fast and accurately as possible' }
    ]
  },
  ERN: {
    name: 'ERROR-RELATED NEGATIVITY',
    body: 'A speeded choice task: respond to the central arrow within 500 ms. Errors are inevitable at this speed. The ERN peaks 0–100 ms after an error, reflecting anterior cingulate error monitoring. The Pe follows 200–400 ms later as conscious error awareness.',
    rules: [
      { key: 'F / LEFT',    desc: 'Arrow points left — respond within 500 ms' },
      { key: 'J / RIGHT',   desc: 'Arrow points right — respond within 500 ms' },
      { key: 'SPEED',       desc: 'Respond as fast as possible — errors generate ERN' },
      { key: 'ERN',         desc: 'Negative peak 0–100 ms post-error (fronto-central)' },
      { key: 'Pe',          desc: 'Positive peak 200–400 ms post-error (error awareness)' }
    ]
  },
  MRT: {
    name: 'MENTAL ROTATION',
    body: 'Two 3-D cube structures appear side by side. Decide whether they are the same shape rotated to a different angle, or mirror images. RT increases with rotation angle — the slope indexes rotation speed.',
    rules: [
      { key: 'S', desc: 'Press S or click Same — shapes are identical (just rotated)' },
      { key: 'D', desc: 'Press D or click Different — shapes are mirror images' },
      { key: 'SHAPE B', desc: 'Shape B animates into its rotation — respond after it settles' },
      { key: 'ANGLES', desc: '4 rotation angles: 0°, 60°, 120°, 180°' },
      { key: 'METRICS', desc: 'Accuracy and RT by angle — RT should rise with larger rotations' }
    ]
  }
});

// ── N400 SEMANTIC PRIMING ENGINE ──────────────────────────
const N400={active:false,isPractice:false,trial:0,log:[],practiceLog:[],phase:null,waiting:false,stimOn:0,_timers:[],maxTrials:0,currentPair:null,_deck:[]};
const N400_WORD_DUR  = 1000;  // each word on screen (ms)
const N400_FIX_DUR   = 500;   // fixation between words (ms) — reduced
const N400_LEAD_FIX  = 500;   // opening fixation (ms)
const N400_TARGET_TO = 3000;  // response window for target (ms)

const N400_PAIRS=[
  // Each sentence frame appears twice: once congruent, once incongruent
  // ── Surgeon ──
  {prime:'The surgeon scrubbed his hands before the',  target:'OPERATION',  condition:'congruent'},
  {prime:'The surgeon scrubbed his hands before the',  target:'PARAGRAPH',  condition:'incongruent'},
  // ── Bread ──
  {prime:'She spread butter on her slice of',          target:'BREAD',      condition:'congruent'},
  {prime:'She spread butter on her slice of',          target:'CABINET',    condition:'incongruent'},
  // ── Playground ──
  {prime:'The children played on the swings in the',   target:'PARK',       condition:'congruent'},
  {prime:'The children played on the swings in the',   target:'INVOICE',    condition:'incongruent'},
  // ── Birthday ──
  {prime:'He blew out the candles on his birthday',    target:'CAKE',       condition:'congruent'},
  {prime:'He blew out the candles on his birthday',    target:'VERDICT',    condition:'incongruent'},
  // ── Astronaut ──
  {prime:'The astronaut floated weightless in outer',  target:'SPACE',      condition:'congruent'},
  {prime:'The astronaut floated weightless in outer',  target:'CARPET',     condition:'incongruent'},
  // ── Door ──
  {prime:'She turned the key and opened the front',    target:'DOOR',       condition:'congruent'},
  {prime:'She turned the key and opened the front',    target:'PLANET',     condition:'incongruent'},
  // ── Restaurant ──
  {prime:'The waiter brought the bill at the end of the', target:'MEAL',   condition:'congruent'},
  {prime:'The waiter brought the bill at the end of the', target:'LUGGAGE',condition:'incongruent'},
  // ── Orange juice ──
  {prime:'He drank a cold glass of orange',            target:'JUICE',      condition:'congruent'},
  {prime:'He drank a cold glass of orange',            target:'PENCIL',     condition:'incongruent'},
  // ── Exam ──
  {prime:'The student studied hard for the final',     target:'EXAM',       condition:'congruent'},
  {prime:'The student studied hard for the final',     target:'CHIMNEY',    condition:'incongruent'},
  // ── Sunrise ──
  {prime:'She woke up early to watch the morning',     target:'SUNRISE',    condition:'congruent'},
  {prime:'She woke up early to watch the morning',     target:'CONTRACT',   condition:'incongruent'},
  // ── Mechanic ──
  {prime:'The mechanic checked the oil and changed the flat', target:'TYRE',   condition:'congruent'},
  {prime:'The mechanic checked the oil and changed the flat', target:'SENATOR',condition:'incongruent'},
  // ── Laptop ──
  {prime:'He saved the file and closed the laptop',    target:'LID',        condition:'congruent'},
  {prime:'He saved the file and closed the laptop',    target:'HARBOUR',    condition:'incongruent'},
  // ── Garden ──
  {prime:'The gardener watered the roses in the',      target:'GARDEN',     condition:'congruent'},
  {prime:'The gardener watered the roses in the',      target:'MOLECULE',   condition:'incongruent'},
  // ── Present ──
  {prime:'She wrapped the present and tied a',         target:'BOW',        condition:'congruent'},
  {prime:'She wrapped the present and tied a',         target:'GLACIER',    condition:'incongruent'},
  // ── Runway ──
  {prime:'The pilot landed the plane on the',          target:'RUNWAY',     condition:'congruent'},
  {prime:'The pilot landed the plane on the',          target:'MATTRESS',   condition:'incongruent'},
  // ── Envelope ──
  {prime:'He signed the letter and sealed the',        target:'ENVELOPE',   condition:'congruent'},
  {prime:'He signed the letter and sealed the',        target:'FOREST',     condition:'incongruent'},
  // ── Hospital ──
  {prime:'The nurse checked the patient\'s blood',     target:'PRESSURE',   condition:'congruent'},
  {prime:'The nurse checked the patient\'s blood',     target:'CALENDAR',   condition:'incongruent'},
  // ── Coffee ──
  {prime:'She added milk and sugar to her morning',    target:'COFFEE',     condition:'congruent'},
  {prime:'She added milk and sugar to her morning',    target:'ALGEBRA',    condition:'incongruent'},
  // ── Library ──
  {prime:'He returned the overdue books to the',       target:'LIBRARY',    condition:'congruent'},
  {prime:'He returned the overdue books to the',       target:'VOLCANO',    condition:'incongruent'},
  // ── Storm ──
  {prime:'Dark clouds gathered and thunder rolled across the', target:'SKY',   condition:'congruent'},
  {prime:'Dark clouds gathered and thunder rolled across the', target:'CARPET',condition:'incongruent'},
  // ── Coffee ──
  {prime:'Every morning she drank a hot cup of',     target:'COFFEE',    condition:'congruent'},
  {prime:'Every morning she drank a hot cup of',      target:'GRAVEL',    condition:'incongruent'},
  // ── Letter ──
  {prime:'He sealed the envelope and mailed the',     target:'LETTER',    condition:'congruent'},
  {prime:'He sealed the envelope and mailed the',      target:'PENGUIN',   condition:'incongruent'},
  // ── Piano ──
  {prime:'She sat down and began to play the',        target:'PIANO',     condition:'congruent'},
  {prime:'She sat down and began to play the',         target:'SANDWICH',  condition:'incongruent'},
  // ── Garden ──
  {prime:'In spring he planted flowers in the',       target:'GARDEN',    condition:'congruent'},
  {prime:'In spring he planted flowers in the',        target:'TELESCOPE', condition:'incongruent'},
  // ── Fire ──
  {prime:'The firefighters rushed to put out the',    target:'FIRE',      condition:'congruent'},
  {prime:'The firefighters rushed to put out the',     target:'BALLET',    condition:'incongruent'},
  // ── Mountain ──
  {prime:'The climbers slowly reached the top of the',target:'MOUNTAIN',  condition:'congruent'},
  {prime:'The climbers slowly reached the top of the', target:'BISCUIT',   condition:'incongruent'},
  // ── Snow ──
  {prime:'In winter the ground was covered with',     target:'SNOW',      condition:'congruent'},
  {prime:'In winter the ground was covered with',      target:'LAUGHTER',  condition:'incongruent'},
  // ── Key ──
  {prime:'He could not open the door without the',    target:'KEY',       condition:'congruent'},
  {prime:'He could not open the door without the',     target:'OCEAN',     condition:'incongruent'},
  // ── Milk ──
  {prime:'The baby cried until she was given some',   target:'MILK',      condition:'congruent'},
  {prime:'The baby cried until she was given some',    target:'CONCRETE',  condition:'incongruent'},
  // ── Map ──
  {prime:'Lost in the city, the tourists studied the',target:'MAP',       condition:'congruent'},
  {prime:'Lost in the city, the tourists studied the', target:'OMELETTE',  condition:'incongruent'},
  // ── Stars ──
  {prime:'On a clear night you can see the',          target:'STARS',     condition:'congruent'},
  {prime:'On a clear night you can see the',           target:'INVOICES',  condition:'incongruent'},
  // ── Rain ──
  {prime:'She opened her umbrella to keep off the',   target:'RAIN',      condition:'congruent'},
  {prime:'She opened her umbrella to keep off the',    target:'ALGEBRA',   condition:'incongruent'},
  // ── Bee ──
  {prime:'Buzzing in the garden was a busy little',   target:'BEE',       condition:'congruent'},
  {prime:'Buzzing in the garden was a busy little',    target:'CATHEDRAL', condition:'incongruent'},
  // ── Teeth ──
  {prime:'Twice a day the dentist said to brush your',target:'TEETH',     condition:'congruent'},
  {prime:'Twice a day the dentist said to brush your', target:'HARBOR',    condition:'incongruent'},
  // ── Soup ──
  {prime:'On a cold day he warmed up a bowl of',      target:'SOUP',      condition:'congruent'},
  {prime:'On a cold day he warmed up a bowl of',       target:'PARLIAMENT',condition:'incongruent'},
  // ── Clock ──
  {prime:'To know the time she looked at the',        target:'CLOCK',     condition:'congruent'},
  {prime:'To know the time she looked at the',         target:'CUCUMBER',  condition:'incongruent'},
  // ── Wings ──
  {prime:'The bird flew away by flapping its',        target:'WINGS',     condition:'congruent'},
  {prime:'The bird flew away by flapping its',         target:'BUDGETS',   condition:'incongruent'},
];
function n400ClearTimers(){N400._timers.forEach(t=>clearTimeout(t));N400._timers=[];}
function n400T(fn,ms){const t=setTimeout(fn,ms);N400._timers.push(t);return t;}
function startN400(isPractice){
  N400.active=true;N400.isPractice=isPractice;
  N400.maxTrials = taskTrials('N400',8,30,isPractice);
  N400.trial=0;
  if(!isPractice){N400.log=[];}else{N400.practiceLog=[];}
  n400ClearTimers();hideAll();
  $('n400Screen').style.display='flex';
  $('n400PracticeBanner').style.display=isPractice?'block':'none';
  $('n400StimPhase').style.display='none';$('n400ResultsPhase').style.display='none';
  $('exportBtn').disabled=true;
  N400._deck=n400BuildDeck(N400.maxTrials);
  Trigger.send(10,'N400_block_start',{task:'N400',practice:isPractice,n_trials:N400.maxTrials,classes:{41:'congruent',42:'incongruent'}});
  speak(isPractice?'Practice N 400 task.':'Starting N 400 task.');
  n400Next();
}
function n400BuildDeck(n){
  // 80% congruent, 20% incongruent — classic oddball ratio
  const cong   = N400_PAIRS.filter(p=>p.condition==='congruent');
  const incong  = N400_PAIRS.filter(p=>p.condition==='incongruent');
  const nIncong = Math.round(n * 0.20);
  const nCong   = n - nIncong;

  // sample with repetition if needed
  function sample(arr, k){
    const out=[];
    let pool=[...arr];
    while(out.length<k){
      if(!pool.length) pool=[...arr];
      const i=Math.floor(Math.random()*pool.length);
      out.push(pool.splice(i,1)[0]);
    }
    return out;
  }

  const deck=[...sample(cong,nCong),...sample(incong,nIncong)];
  // shuffle — but avoid two incongruent trials in a row
  for(let i=deck.length-1;i>0;i--){
    const j=Math.floor(Math.random()*(i+1));
    [deck[i],deck[j]]=[deck[j],deck[i]];
  }
  return deck;
}
function n400Next(){
  if(N400.trial>=N400.maxTrials){n400End();return;}
  N400.trial++;
  $('n400-trial').textContent='Trial '+N400.trial+'/'+N400.maxTrials;
  $('n400ProgressBar').style.width=((N400.trial-1)/N400.maxTrials*100).toFixed(1)+'%';
  N400.currentPair=N400._deck[N400.trial-1];
  N400.waiting=false;$('n400Feedback').textContent='';$('n400Feedback').className='feedback';
  $('n400RespRow').style.display='none';
  n400StartRSVP();
}

// ── RSVP timings ───────────────────────────────────────────

function n400SetWord(txt, style){
  const w=$('n400Word');
  w.style.cssText='min-height:80px;max-width:540px;display:flex;align-items:center;'
    +'justify-content:center;text-align:center;padding:0 24px;'+style;
  w.textContent=txt;
}
function n400SetFix(){
  n400SetWord('+','font-size:2rem;color:var(--mid);');
  $('n400-phase-lbl').textContent='\u00b7\u00b7\u00b7';
  $('n400PhaseLabel').textContent='';
  $('n400KeyHint').textContent='';
}

function n400StartRSVP(){
  const p=N400.currentPair;
  $('n400StimPhase').style.display='flex';
  $('n400RespRow').style.display='none';
  // hide label / trial counter / progress during presentation
  $('n400Screen').querySelector('.stb-header').style.visibility='hidden';
  $('n400ProgressBar').parentElement.style.visibility='hidden';

  const words=p.prime.trim().split(/\s+/);
  let delay=0;

  // opening fixation
  n400T(()=>{ n400SetFix(); }, delay);
  delay+=N400_LEAD_FIX;

  // present each word with fixation between
  words.forEach((word,i)=>{
    n400T(()=>{
      $('n400-phase-lbl').textContent='';
      $('n400PhaseLabel').textContent='';
      $('n400KeyHint').textContent='';
      n400SetWord(word,
        'font-size:2.2rem;font-weight:500;color:#d4a520;'
        +'font-family:"EB Garamond",serif;letter-spacing:0.04em;');
      // TTS: speak the word aloud
      if(Speech.ttsOn) speak(word);
    }, delay);
    delay+=N400_WORD_DUR;

    // fixation after every word
    n400T(()=>{ n400SetFix(); }, delay);
    delay+=N400_FIX_DUR;
  });

  // show target
  n400T(()=>{
    // restore header and progress bar
    $('n400Screen').querySelector('.stb-header').style.visibility='';
    $('n400ProgressBar').parentElement.style.visibility='';
    $('n400-phase-lbl').textContent=tr('TARGET');
    $('n400PhaseLabel').textContent='FITS OR DOESN\'T FIT?';
    // voice mode: hide buttons, show mic hint; keyboard: show buttons
    const voiceMode = inputMode==='voice';
    $('n400RespRow').style.display = voiceMode ? 'none' : 'flex';
    $('n400KeyHint').textContent = voiceMode
      ? 'say "fits" or "odd"'
      : 'F = FITS  \u00b7  J = DOESN\'T FIT';
    n400SetWord(p.target,
      'font-size:2.8rem;font-weight:700;letter-spacing:0.1em;color:#e8e0d0;'
      +'font-family:"Source Code Pro",monospace;');
    if(Speech.ttsOn) speak(p.target);
    N400.stimOn=performance.now();
    triggerFlash();   // photic marker at target onset (was missing for N400)
    // Trigger: target onset — 41 congruent (class A), 42 incongruent (class B)
    Trigger.send(p.condition==='congruent'?41:42, 'N400_'+p.condition, {task:'N400',trial:N400.trial,prime:p.prime,target:p.target,condition:p.condition});
    N400.waiting=true;
    n400T(()=>{if(N400.waiting)n400Respond('TIMEOUT');}, N400_TARGET_TO);
  }, delay);
}

// legacy stubs — no longer called
function n400ShowFix(){}
function n400ShowPrime(){}
function n400ShowISI(){}
function n400ShowTarget(){}

function n400Respond(resp){
  if(!N400.waiting)return;
  N400.waiting=false;n400ClearTimers();
  const p=N400.currentPair;
  const rt=resp==='TIMEOUT'?null:(performance.now()-N400.stimOn);
  const correct=resp==='TIMEOUT'?false:(resp==='FIT'&&p.condition==='congruent')||(resp==='ODD'&&p.condition==='incongruent');
  // Trigger: response — 50 correct, 51 incorrect, 52 omission (timeout)
  Trigger.send(resp==='TIMEOUT'?52:(correct?50:51), 'N400_'+(resp==='TIMEOUT'?'timeout':(correct?'correct':'incorrect')), {task:'N400',trial:N400.trial,rt:rt?+rt.toFixed(1):null,resp:resp});
  const entry={trial:N400.trial,prime:p.prime,target:p.target,condition:p.condition,response:resp,correct,rt:rt?parseFloat(rt.toFixed(1)):null};
  (N400.isPractice?N400.practiceLog:N400.log).push(entry);
  const fb=$('n400Feedback');
  fb.textContent=resp==='TIMEOUT'?'T/O':(rt.toFixed(0)+' ms  '+(correct?'\u2713':'\u2717'));
  fb.className='feedback '+(resp==='TIMEOUT'?'timeout':correct?'ok':'err');
  $('n400RespRow').style.display='none';updateSidebar();n400T(n400Next,400);
}
document.addEventListener('keydown',function(e){
  if(!N400.active||!N400.waiting)return;
  if(e.key==='f'||e.key==='F'){e.preventDefault();n400Respond('FIT');}
  if(e.key==='j'||e.key==='J'){e.preventDefault();n400Respond('ODD');}
});
function n400End(){
  N400.active=false;
  Trigger.send(11,'N400_block_end',{task:'N400'});
  const log=N400.isPractice?N400.practiceLog:N400.log;
  $('n400StimPhase').style.display='none';$('n400ProgressBar').style.width='100%';
  if(N400.isPractice){
    const c=log.filter(r=>r.correct).length;const rts=log.filter(r=>r.rt!=null);
    const avgRT=rts.length?(rts.reduce((a,b)=>a+b.rt,0)/rts.length).toFixed(0):'--';
    hideAll();$('pcStats').innerHTML='TRIALS &nbsp;<span>'+log.length+'</span> &nbsp;&nbsp; ACC &nbsp;<span>'+(log.length?(c/log.length*100).toFixed(0):0)+'%</span> &nbsp;&nbsp; AVG RT &nbsp;<span>'+avgRT+' ms</span>';
    $('practiceComplete').style.display='flex';speak('Practice complete.');return;
  }
  $('exportBtn').disabled=false;
  const mean=arr=>arr.length?(arr.reduce((a,b)=>a+b.rt,0)/arr.length):null;
  const cong=log.filter(r=>r.condition==='congruent'&&r.correct&&r.rt!=null);
  const incong=log.filter(r=>r.condition==='incongruent'&&r.correct&&r.rt!=null);
  const congRT=mean(cong),incongRT=mean(incong);
  const n400effect=congRT&&incongRT?(incongRT-congRT).toFixed(0)+' ms':'--';
  $('n400Metrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+(congRT?congRT.toFixed(0)+'ms':'--')+'</div><div class="vm-lbl">Congruent RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(incongRT?incongRT.toFixed(0)+'ms':'--')+'</div><div class="vm-lbl">Incongruent RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+n400effect+'</div><div class="vm-lbl">N400 Effect</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+log.filter(r=>r.correct).length+'/'+log.length+'</div><div class="vm-lbl">Correct</div></div>';
  const cv=$('n400Chart');
  if(cv){const c2=cv.getContext('2d');cv.width=cv.offsetWidth||460;cv.height=140;
    c2.fillStyle='#060d14';c2.fillRect(0,0,cv.width,cv.height);
    const bars=[{l:'Congruent',v:congRT,col:'#81c784'},{l:'Incongruent',v:incongRT,col:'#e57373'}];
    const maxV=Math.max(...bars.map(b=>b.v||0))*1.15||800;const bw=80,gap=30,sx=(cv.width-bars.length*(bw+gap)+gap)/2;
    bars.forEach((b,i)=>{const x=sx+i*(bw+gap),h=b.v?(b.v/maxV)*100:0,y=120-h;
      c2.fillStyle=b.col+'44';c2.fillRect(x,y,bw,h);c2.strokeStyle=b.col;c2.lineWidth=1.5;c2.strokeRect(x,y,bw,h);
      c2.fillStyle=b.col;c2.font='9px "Source Code Pro",monospace';c2.textAlign='center';c2.fillText(b.l,x+bw/2,135);
      if(b.v){c2.fillStyle='#e8e0d0';c2.font='10px "Source Code Pro",monospace';c2.fillText(b.v.toFixed(0)+'ms',x+bw/2,y-4);}});}
  $('n400ResultsGrid').innerHTML='<div style="display:grid;grid-template-columns:2rem 4rem 5rem 6rem 5rem 4rem;gap:2px 6px;font-size:0.75rem;color:var(--dim);padding-bottom:4px;border-bottom:1px solid #1a2f44;margin-bottom:4px;"><span>#</span><span>PRIME</span><span>TARGET</span><span>COND</span><span>RESP</span><span>RT</span></div>'+
    log.map((r,i)=>'<div style="display:grid;grid-template-columns:2rem 4rem 5rem 6rem 5rem 4rem;gap:2px 6px;font-size:0.75rem;color:'+(r.correct?'#8ab':'#e57373')+'"><span>'+(i+1)+'</span><span>'+r.prime+'</span><span>'+r.target+'</span><span style="color:'+(r.condition==='congruent'?'#81c784':r.condition==='incongruent'?'#e57373':'#7a8a96')+'">'+r.condition.slice(0,5).toUpperCase()+'</span><span>'+r.response+'</span><span>'+(r.rt!=null?r.rt.toFixed(0):'T/O')+'</span></div>').join('');
  $('n400ResultsPhase').style.display='block';
  speak('N 400 task complete. N 400 effect: '+n400effect+'.');updateSidebar();
}
function n400ExportCSV(){
  if(!N400.log.length)return;
  const h='trial,prime,target,condition,response,correct,rt_ms\n';
  const rows=N400.log.map(r=>[r.trial,r.prime,r.target,r.condition,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):''].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});const a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='n400_'+Date.now()+'.csv';a.click();
}

// ── LAUNCH EXTERNAL ────────────────────────────────────────
function launchExternal(url) {
  hideAll();
  $('home').style.display = 'flex';
  window.open(url, '_blank');
}

// ── INTRO ANIMATIONS ───────────────────────────────────────
(function(){
  const GOLD='#d4a520', DIM='rgba(212,165,32,0.25)', MID='#7a8a96';
  const BG='#060d14', NAVY='#1a2a3a';
  let animRAF=null, animTimer=null;

  function stopAnim(){
    if(animRAF){cancelAnimationFrame(animRAF);animRAF=null;}
    if(animTimer){clearTimeout(animTimer);animTimer=null;}
  }
  window._stopIntroAnim = stopAnim;

  function getCtx(){
    const c=document.getElementById('introAnim');
    if(!c)return null;
    c.width=c.offsetWidth>0?c.offsetWidth:520;
    c.height=110;
    return c.getContext('2d');
  }

  function clear(ctx){ctx.fillStyle=BG;ctx.fillRect(0,0,ctx.canvas.width,ctx.canvas.height);}
  function circle(ctx,x,y,r,col,fill){ctx.beginPath();ctx.arc(x,y,r,0,Math.PI*2);if(fill){ctx.fillStyle=fill;ctx.fill();}ctx.strokeStyle=col;ctx.lineWidth=1.5;ctx.stroke();}
  function rect(ctx,x,y,w,h,col,fill){if(fill){ctx.fillStyle=fill;ctx.fillRect(x,y,w,h);}ctx.strokeStyle=col;ctx.lineWidth=1.5;ctx.strokeRect(x,y,w,h);}
  function arrow(ctx,x1,y1,x2,y2,col){ctx.strokeStyle=col||GOLD;ctx.lineWidth=1.5;ctx.beginPath();ctx.moveTo(x1,y1);ctx.lineTo(x2,y2);ctx.stroke();const a=Math.atan2(y2-y1,x2-x1);ctx.beginPath();ctx.moveTo(x2,y2);ctx.lineTo(x2-8*Math.cos(a-0.4),y2-8*Math.sin(a-0.4));ctx.lineTo(x2-8*Math.cos(a+0.4),y2-8*Math.sin(a+0.4));ctx.closePath();ctx.fillStyle=col||GOLD;ctx.fill();}
  function cap(ctx,txt,col){ctx.font='10px "Source Code Pro",monospace';ctx.fillStyle=col||MID;ctx.textAlign='center';ctx.fillText(txt,ctx.canvas.width/2,ctx.canvas.height-10);ctx.textAlign='left';}

  function animGNG(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const seq=[{s:'●',c:GOLD,go:true,l:'GO → press F / SPACE'},{s:'○',c:MID,go:false,l:'NO-GO → withhold'},{s:'●',c:GOLD,go:true,l:'GO → respond fast'}];
    let fi=0,phase=0,t=0;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>80){t=0;phase=(phase+1)%3;if(phase===0)fi=(fi+1)%seq.length;}
      const f=seq[fi];clear(ctx);
      const cx=W/2-50,cy=H/2-5;
      rect(ctx,cx-24,cy-24,48,48,'#1a2f44',NAVY);
      ctx.font=`bold 26px monospace`;ctx.fillStyle=f.c;ctx.textAlign='center';ctx.textBaseline='middle';ctx.fillText(f.s,cx,cy);ctx.textBaseline='alphabetic';
      if(phase>=1){
        if(f.go){rect(ctx,W/2+20,cy-14,70,28,'#2a5040','rgba(39,174,96,0.1)');ctx.font='10px "Source Code Pro",monospace';ctx.fillStyle='#81c784';ctx.textAlign='center';ctx.fillText('F / SPACE',W/2+55,cy+4);}
        else{ctx.font='10px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('— withhold —',W/2+55,cy+4);}
      }
      cap(ctx,f.l,f.go?GOLD:MID);
    }tick();
  }

  function animNBACK(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const seq=['K','R','K','M','M'];
    let ti=0,phase=0,t=0;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>55){t=0;phase=(phase+1)%3;if(phase===0)ti=(ti+1)%seq.length;}
      clear(ctx);
      for(let i=Math.max(0,ti-3);i<ti;i++){
        const age=ti-i;ctx.font='20px "Source Code Pro",monospace';
        ctx.fillStyle=`rgba(212,165,32,${0.35-age*0.07})`;ctx.textAlign='center';ctx.fillText(seq[i],W/2-age*48,H/2+7);
      }
      ctx.font='bold 30px "Source Code Pro",monospace';
      const isMatch=ti>0&&seq[ti]===seq[ti-1];
      ctx.fillStyle=phase>1?(isMatch?'#81c784':'#e57373'):GOLD;
      ctx.textAlign='center';ctx.fillText(seq[ti]||'?',W/2,H/2+10);
      cap(ctx,phase>1&&ti>0?(isMatch?'MATCH → F':'NO MATCH → J'):'does current letter match one back?',phase>1&&ti>0?(isMatch?'#81c784':'#e57373'):MID);
    }tick();
  }

  function animSPATIAL(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    let target=4,phase=0,t=0;
    function newTarget(){target=Math.floor(Math.random()*9);}
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>65){t=0;phase=(phase+1)%3;if(phase===0)newTarget();}
      clear(ctx);
      const gs=32,gap=4,cols=3,ox=W/2-(cols*(gs+gap)-gap)/2,oy=H/2-(cols*(gs+gap)-gap)/2-5;
      for(let r=0;r<3;r++)for(let c=0;c<3;c++){
        const i=r*3+c,x=ox+c*(gs+gap),y=oy+r*(gs+gap),isT=i===target;
        rect(ctx,x,y,gs,gs,isT?GOLD:'#1a2f44',isT?'rgba(212,165,32,0.15)':NAVY);
      }
      if(phase===1){const c2=target%3,r2=Math.floor(target/3),tx=ox+c2*(gs+gap)+gs/2,ty=oy+r2*(gs+gap)+gs/2;circle(ctx,tx,ty,8,GOLD,'rgba(212,165,32,0.5)');}
      cap(ctx,'click the highlighted cell as fast as possible');
    }tick();
  }

  function animPOSNER(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    let phase=0,t=0,valid=true;
    const lx=W/2-90,rx=W/2+90,cy=H/2-5;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>50){t=0;phase=(phase+1)%5;if(phase===0)valid=!valid;}
      clear(ctx);
      ctx.font='bold 14px monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('+',W/2,cy+5);
      rect(ctx,lx-18,cy-18,36,36,phase>=1&&valid?GOLD:'#1a2f44',NAVY);
      rect(ctx,rx-18,cy-18,36,36,phase>=1&&!valid?GOLD:'#1a2f44',NAVY);
      if(phase>=1){ctx.font='16px monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';ctx.fillText(valid?'→':'←',W/2-4,cy+5);}
      if(phase>=2){ctx.font='18px monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';ctx.fillText('★',valid?lx:rx,cy+6);}
      cap(ctx,phase>=2?'SPACE — target detected':(valid?'valid cue → target on cued side':'invalid cue → opposite side'),phase>=2?'#81c784':MID);
    }tick();
  }

  function animRECALL(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const words=['TABLE','RIVER','LAMP','OCEAN','CLOCK'];
    let wi=0,phase=0,t=0,typed='';
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>45){t=0;phase=(phase+1)%4;if(phase===0){wi=(wi+1)%words.length;if(wi===0){typed=(typed?typed+'  ':'')+words[Math.floor(Math.random()*5)];if(typed.split('  ').length>3)typed='';}}}
      clear(ctx);
      if(wi<words.length){
        ctx.font=`bold 24px "EB Garamond",serif`;ctx.fillStyle=phase<2?GOLD:`rgba(212,165,32,0.3)`;ctx.textAlign='center';ctx.fillText(words[wi],W/2,H/2+8);
        cap(ctx,'STUDY — remember each word');
      }else{
        ctx.font='12px "Source Code Pro",monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';ctx.fillText((typed||'_')+'█',W/2,H/2+6);
        cap(ctx,'RECALL — type each word + Enter');
      }
    }tick();
  }

  function animWCST(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const piles=[{c:'#c0392b',s:'▲'},{c:'#27ae60',s:'★'},{c:'#c8a000',s:'✚'},{c:'#2980b9',s:'●'}];
    const cards=[{c:'#27ae60',s:'▲'},{c:'#c0392b',s:'★'}];
    let ci=0,phase=0,t=0,tgt=-1;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>55){t=0;phase=(phase+1)%4;if(phase===0){ci=(ci+1)%cards.length;tgt=-1;}}
      if(phase===1&&tgt<0)tgt=Math.floor(Math.random()*4);
      clear(ctx);
      piles.forEach((p,i)=>{
        const x=30+i*74,y=15;rect(ctx,x,y,60,35,phase>=2&&i===tgt?GOLD:'#1a2f44',NAVY);
        ctx.font='12px monospace';ctx.fillStyle=p.c;ctx.textAlign='center';ctx.fillText(p.s,x+30,y+14);
        ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.fillText(i+1,x+30,y+27);
      });
      const card=cards[ci];const cx=W/2-30,cy=60;
      rect(ctx,cx,cy,60,35,GOLD,'rgba(212,165,32,0.08)');
      ctx.font='13px monospace';ctx.fillStyle=card.c;ctx.textAlign='center';ctx.fillText(card.s,cx+30,cy+14);
      if(phase>=1&&tgt>=0)arrow(ctx,cx+30,cy,30+tgt*74+30,50,GOLD);
      cap(ctx,'sort by hidden rule · rule shifts after 10 correct');
    }tick();
  }

  function animVRT(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    let phase=0,t=0,s=42;
    function rng(){s=(s*1664525+1013904223)>>>0;return s/4294967296;}
    function pat(x,y,sz,seed){const sv=s;s=seed;const cols=['#2980b9','#c0392b','#27ae60','#c8a000'];
      for(let i=0;i<5;i++){const px=x+rng()*sz,py=y+rng()*sz,r=3+rng()*7;ctx.fillStyle=cols[Math.floor(rng()*4)];ctx.beginPath();ctx.arc(px,py,r,0,Math.PI*2);ctx.fill();}s=sv;}
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>60){t=0;phase=(phase+1)%4;}
      clear(ctx);
      if(phase<=1){
        ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';ctx.fillText('STUDY',W/2,14);
        for(let i=0;i<3;i++){rect(ctx,W/2-90+i*65,18,55,55,'#1a2f44',NAVY);pat(W/2-88+i*65,20,51,100+i*77);}
        cap(ctx,'memorise the patterns');
      }else{
        ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';ctx.fillText('TEST — which did you study?',W/2,14);
        rect(ctx,W/2-75,18,55,55,phase===3?GOLD:'#1a2f44',NAVY);pat(W/2-73,20,51,100);
        rect(ctx,W/2+20,18,55,55,'#1a2f44',NAVY);pat(W/2+22,20,51,9999);
        cap(ctx,phase===3?'click the studied pattern →':'old or new?',phase===3?'#81c784':MID);
      }
    }tick();
  }

  function animCSR(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    let t=0,isTarget=false,phase=0;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t%30===0){phase=(phase+1)%6;if(phase===0)isTarget=Math.random()<0.3;}
      clear(ctx);
      const sz=7,n=6,cx=W/2,cy=H/2-5;
      const rotated=isTarget&&phase>3;
      ctx.save();if(rotated){ctx.translate(cx,cy);ctx.rotate(Math.PI/4);ctx.translate(-n*sz,-n*sz);}else{ctx.translate(cx-n*sz,cy-n*sz);}
      for(let r=0;r<n*2;r++)for(let c=0;c<n*2;c++){ctx.fillStyle=(r+c)%2===0?'rgba(212,165,32,0.75)':'rgba(6,13,20,0.8)';ctx.fillRect(c*sz,r*sz,sz,sz);}
      ctx.restore();
      cap(ctx,rotated?'TARGET → press SPACE!':'standard reversal — do not respond',rotated?GOLD:MID);
    }tick();
  }

  function animP300(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const seq=[false,false,true,false,false,false,true];
    let ti=0,phase=0,t=0;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>38){t=0;phase=(phase+1)%3;if(phase===0)ti=(ti+1)%seq.length;}
      clear(ctx);
      const odd=seq[ti],r=odd?26:16,cy=H/2-5;
      ctx.beginPath();ctx.arc(W/2,cy,r,0,Math.PI*2);
      ctx.fillStyle=odd?'rgba(212,165,32,0.2)':'rgba(122,138,150,0.1)';ctx.fill();
      ctx.strokeStyle=odd?GOLD:MID;ctx.lineWidth=2;ctx.stroke();
      ctx.font=`${odd?12:10}px "Source Code Pro",monospace`;ctx.fillStyle=odd?GOLD:MID;ctx.textAlign='center';ctx.fillText(odd?'2000 Hz':'1000 Hz',W/2,cy+4);
      cap(ctx,odd&&phase>=1?'ODDBALL → press SPACE':(odd?'rare tone (20%)':'frequent tone — do not respond'),odd&&phase>=1?'#81c784':MID);
    }tick();
  }

  function animSTB(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const set=['K','R','M'];let si=0,phase=0,t=0,probe='',inSet=false;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>42){t=0;phase++;
        if(phase>set.length+3){phase=0;si=0;probe=Math.random()<0.5?set[Math.floor(Math.random()*3)]:'X';inSet=set.includes(probe);}
      }
      clear(ctx);
      if(phase<=set.length){
        ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('MEMORY SET',W/2,14);
        set.forEach((l,i)=>{ctx.font=`bold ${i<phase?26:18}px "Source Code Pro",monospace`;ctx.fillStyle=i<phase?(i===phase-1?GOLD:'rgba(212,165,32,0.4)'):DIM;ctx.textAlign='center';ctx.fillText(i<phase?l:'?',W/2-32+i*32,H/2+9);});
        cap(ctx,'study the letters one at a time');
      }else if(phase===set.length+1){
        ctx.font='20px monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('· · ·',W/2,H/2+7);cap(ctx,'retention interval');
      }else{
        ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';ctx.fillText('PROBE',W/2,14);
        ctx.font='bold 32px "Source Code Pro",monospace';ctx.fillStyle=inSet?'#81c784':'#e57373';ctx.textAlign='center';ctx.fillText(probe||'?',W/2,H/2+11);
        cap(ctx,inSet?'IN SET → F / SPACE':'NOT IN SET → J',inSet?'#81c784':'#e57373');
      }
    }tick();
  }

  function animTMT(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const nodes=[{l:'1',x:55,y:55},{l:'2',x:115,y:28},{l:'A',x:175,y:55},{l:'3',x:235,y:28},{l:'B',x:295,y:55},{l:'4',x:355,y:28}];
    let cur=0,path=[],t=0;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>45){t=0;if(cur<nodes.length){path.push(nodes[cur]);cur++;}else{cur=0;path=[];}}
      clear(ctx);
      if(path.length>1){ctx.strokeStyle='rgba(212,165,32,0.5)';ctx.lineWidth=2;ctx.beginPath();path.forEach((p,i)=>i===0?ctx.moveTo(p.x,p.y):ctx.lineTo(p.x,p.y));ctx.stroke();}
      nodes.forEach((n,i)=>{const v=i<cur;circle(ctx,n.x,n.y,13,v?GOLD:'#1a2f44',v?'rgba(212,165,32,0.2)':NAVY);ctx.font='bold 10px "Source Code Pro",monospace';ctx.fillStyle=v?GOLD:MID;ctx.textAlign='center';ctx.textBaseline='middle';ctx.fillText(n.l,n.x,n.y);ctx.textBaseline='alphabetic';});
      cap(ctx,'Part B: alternate 1 → A → 2 → B → 3 → C …');
    }tick();
  }

  function animDSC(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const syms=['|','⊙','+','×','□','△','★','⧗','∩'];
    const digits=[3,7,5,2,4];
    let ci=0,phase=0,t=0;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>38){t=0;phase=(phase+1)%4;if(phase===0)ci=(ci+1)%digits.length;}
      clear(ctx);
      const kw=40,kh=26,kx=20,ky=10,gap=2;
      for(let d=1;d<=9;d++){const x=kx+(d-1)*(kw+gap);rect(ctx,x,ky,kw,kh,d===digits[ci]&&phase>=1?GOLD:'#1a2f44',NAVY);ctx.font='bold 9px "Source Code Pro",monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';ctx.fillText(d,x+kw/2,ky+10);ctx.font='10px monospace';ctx.fillStyle=MID;ctx.fillText(syms[d-1],x+kw/2,ky+22);}
      digits.forEach((d,i)=>{const x=30+i*74,y=46,filled=i<ci||(i===ci&&phase>=3);rect(ctx,x,y,60,28,i===ci&&phase<3?GOLD:'#1a2f44',NAVY);ctx.font='bold 9px "Source Code Pro",monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';ctx.fillText(d,x+30,y+11);if(filled){ctx.font='11px monospace';ctx.fillStyle=GOLD;ctx.fillText(syms[d-1],x+30,y+24);}});
      cap(ctx,'find digit in key → select symbol → fill box');
    }tick();
  }

  function animPNT(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const items=[{e:'🍎',n:'apple'},{e:'🕐',n:'clock'},{e:'🔑',n:'key'},{e:'✂️',n:'scissors'}];
    let ii=0,phase=0,t=0,wt=0;
    function tick(){animRAF=requestAnimationFrame(tick);t++;wt+=0.15;
      if(t>60){t=0;phase=(phase+1)%4;if(phase===0)ii=(ii+1)%items.length;}
      clear(ctx);
      rect(ctx,W/2-55,8,110,70,phase>=1?GOLD:'#1a2f44',NAVY);
      ctx.font='38px monospace';ctx.textAlign='center';ctx.fillText(items[ii].e,W/2,58);
      if(phase>=2){circle(ctx,W-40,H/2-8,16,GOLD,'rgba(212,165,32,0.1)');ctx.font='14px monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';ctx.fillText('🎤',W-40,H/2-3);ctx.strokeStyle=GOLD;ctx.lineWidth=1.2;ctx.beginPath();for(let x=0;x<55;x++){const y=H/2+18+7*Math.sin(x*0.35+wt)*Math.exp(-((x-27)**2)/400);x===0?ctx.moveTo(W-68+x,y):ctx.lineTo(W-68+x,y);}ctx.stroke();}
      if(phase>=3){ctx.font='11px "Source Code Pro",monospace';ctx.fillStyle='#81c784';ctx.textAlign='center';ctx.fillText('"'+items[ii].n+'"',W/2,H-10);}
      else{cap(ctx,'name the object aloud as fast as possible');}
    }tick();
  }

  function animMRT(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const cubes=[{x:0,y:0},{x:1,y:0},{x:2,y:0},{x:2,y:1},{x:2,y:2}];
    let angle=0,spinning=false,mirror=false,phase=0,t=0;
    function drawShape(cx,cy,ang,mir,sc){
      const a=ang*Math.PI/180,cos=Math.cos(a),sin=Math.sin(a);
      cubes.forEach(({x:bx,y:by})=>{const rx=bx-1,ry=by-1;let tx=rx*cos-ry*sin,ty=rx*sin+ry*cos;if(mir)tx=-tx;rect(ctx,cx+tx*sc-sc/2+1,cy+ty*sc-sc/2+1,sc-2,sc-2,GOLD,'rgba(212,165,32,0.18)');});
    }
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>60&&!spinning){t=0;phase=(phase+1)%3;if(phase===1){spinning=true;mirror=Math.random()<0.4;}if(phase===0){angle=0;}}
      if(spinning){angle+=2.5;if(angle>=120){angle=120;spinning=false;}}
      clear(ctx);
      drawShape(W/2-80,H/2-5,30,false,13);
      ctx.strokeStyle='#1a2f44';ctx.lineWidth=1;ctx.setLineDash([3,3]);ctx.beginPath();ctx.moveTo(W/2,12);ctx.lineTo(W/2,H-18);ctx.stroke();ctx.setLineDash([]);
      drawShape(W/2+80,H/2-5,30+angle,mirror,13);
      ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('A',W/2-80,H-12);ctx.fillText('B',W/2+80,H-12);
      if(!spinning&&phase===2){ctx.font='10px "Source Code Pro",monospace';ctx.fillStyle=mirror?'#e57373':'#81c784';ctx.textAlign='center';ctx.fillText(mirror?'DIFFERENT → D':'SAME → S',W/2,H-10);}
      else{cap(ctx,'same shape rotated, or mirror image?  S / D');}
    }tick();
  }

  function animN400(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const examples=[
      {words:['She','spread','butter','on','her','slice','of'],target:'BREAD',   cong:true},
      {words:['She','spread','butter','on','her','slice','of'],target:'CABINET', cong:false},
    ];
    let ei=0,wi=0,phase=0,t=0; // phase: 0=fix, 1=word, cycle
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>28){t=0;
        phase=(phase+1)%2;
        if(phase===0){wi++;
          if(wi>examples[ei].words.length){wi=0;ei=(ei+1)%examples.length;}
        }
      }
      clear(ctx);
      const ex=examples[ei];
      const cy=H/2+4;
      if(wi<ex.words.length){
        if(phase===1){
          ctx.font='bold 22px "EB Garamond",serif';ctx.fillStyle=GOLD;
          ctx.textAlign='center';ctx.fillText(ex.words[wi],W/2,cy);
        } else {
          ctx.font='bold 18px monospace';ctx.fillStyle=MID;
          ctx.textAlign='center';ctx.fillText('+',W/2,cy);
        }
        ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;
        ctx.textAlign='center';ctx.fillText('word '+(wi+1)+' of '+ex.words.length,W/2,14);
      } else {
        ctx.font='bold 24px "Source Code Pro",monospace';
        ctx.fillStyle='#e8e0d0';ctx.textAlign='center';ctx.fillText(ex.target,W/2,cy);
        ctx.font='9px "Source Code Pro",monospace';
        ctx.fillStyle=ex.cong?'#81c784':'#e57373';ctx.textAlign='center';
        ctx.fillText(ex.cong?'CONGRUENT — F (word)':'INCONGRUENT — F (word)',W/2,14);
        cap(ctx,'F = FITS  ·  J = DOESN\'T FIT');
      }
    }tick();
  }

  function animFLANKER(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const stims=[{a:'→ → → → →',col:'#81c784',l:'CONGRUENT — respond →'},{a:'→ → ← → →',col:'#e57373',l:'INCONGRUENT — respond ←'}];
    let si=0,phase=0,t=0;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>55){t=0;phase=(phase+1)%3;if(phase===0)si=(si+1)%stims.length;}
      clear(ctx);const s=stims[si];
      if(phase===0){ctx.font='bold 18px monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('+',W/2,H/2+6);}
      else{ctx.font='bold 28px "Source Code Pro",monospace';ctx.fillStyle=phase===2?s.col:'#e8e0d0';ctx.textAlign='center';ctx.fillText(s.a,W/2,H/2+10);}
      cap(ctx,s.l,s.col);
    }tick();
  }
  function animSTOP(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    let phase=0,t=0,isStop=false;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>45){t=0;phase=(phase+1)%4;if(phase===0)isStop=Math.random()<0.3;}
      clear(ctx);
      if(phase===0){ctx.font='bold 18px monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('+',W/2,H/2+6);cap(ctx,'fixation');}
      else if(phase===1){cognosDrawArrow(ctx,W/2,H/2,44,'right',{color:'#e8e0d0'});cap(ctx,'GO — respond fast');}
      else if(phase===2&&isStop){ctx.font='bold 28px monospace';ctx.fillStyle='#e57373';ctx.textAlign='center';ctx.fillText('⛔',W/2,H/2+10);cap(ctx,'STOP SIGNAL — withhold!','#e57373');}
      else{cognosDrawArrow(ctx,W/2,H/2,44,'right',{color:'#e8e0d0'});}
    }tick();
  }
  function animMMN(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const tones=[false,false,true,false,false,false,false,false,true,false];
    let ti=0,phase=0,t=0;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>30){t=0;phase=(phase+1)%2;if(phase===0)ti=(ti+1)%tones.length;}
      clear(ctx);const dev=tones[ti];const r=dev?28:18,cy=H/2-5;
      ctx.beginPath();ctx.arc(W/2,cy,r,0,Math.PI*2);ctx.fillStyle=dev?'rgba(212,165,32,0.15)':'rgba(26,42,58,0.5)';ctx.fill();
      ctx.strokeStyle=dev?GOLD:MID;ctx.lineWidth=2;ctx.stroke();
      ctx.font=`${dev?12:10}px "Source Code Pro",monospace`;ctx.fillStyle=dev?GOLD:MID;ctx.textAlign='center';ctx.fillText(dev?'1200 Hz':'1000 Hz',W/2,cy+4);
      cap(ctx,dev?'DEVIANT (20%) — MMN component':'STANDARD (80%) — passive listen',dev?GOLD:MID);
    }tick();
  }
  function animP600(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const pairs=[{words:['The','keys','to','the','cabinet'],target:'WERE LOST',ok:true},{words:['The','keys','to','the','cabinet'],target:'WAS LOST',ok:false}];
    let pi=0,wi=0,phase=0,t=0;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>25){t=0;phase=(phase+1)%2;if(phase===0){wi++;if(wi>pairs[pi].words.length){wi=0;pi=(pi+1)%pairs.length;}}}
      clear(ctx);const p=pairs[pi];
      if(wi<p.words.length){
        if(phase===1){ctx.font='bold 22px "EB Garamond",serif';ctx.fillStyle=GOLD;ctx.textAlign='center';ctx.fillText(p.words[wi],W/2,H/2+8);}
        else{ctx.font='bold 18px monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('+',W/2,H/2+6);}
        ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('word '+(wi+1)+' of '+p.words.length,W/2,14);
      }else{
        ctx.font='bold 20px "Source Code Pro",monospace';ctx.fillStyle='#e8e0d0';ctx.textAlign='center';ctx.fillText(p.target,W/2,H/2+8);
        ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=p.ok?'#81c784':'#e57373';ctx.textAlign='center';ctx.fillText(p.ok?'GRAMMATICAL':'VIOLATION',W/2,14);
        cap(ctx,p.ok?'F = CORRECT':'J = VIOLATION',p.ok?'#81c784':'#e57373');
      }
    }tick();
  }
  function animERN(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    let phase=0,t=0,dir='→',isErr=false;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>40){t=0;phase=(phase+1)%3;if(phase===0){dir=Math.random()<0.5?'←':'→';isErr=Math.random()<0.2;}}
      clear(ctx);
      if(phase===0){ctx.font='bold 18px monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('+',W/2,H/2+6);cap(ctx,'fixation');}
      else if(phase===1){ctx.font='bold 40px "Source Code Pro",monospace';ctx.fillStyle='#e8e0d0';ctx.textAlign='center';ctx.fillText(dir,W/2,H/2+14);ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle='#e57373';ctx.textAlign='center';ctx.fillText('< 500 ms',W/2,14);}
      else{ctx.font='bold 40px "Source Code Pro",monospace';ctx.fillStyle=isErr?'#e57373':'#81c784';ctx.textAlign='center';ctx.fillText(dir,W/2,H/2+14);cap(ctx,isErr?'✗ ERROR — ERN generated':'✓ correct',isErr?'#e57373':'#81c784');}
    }tick();
  }

  function animSTROOP(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const pairs=[
      {word:'RED',   hex:'#e05c5c', label:'congruent'},
      {word:'BLUE',  hex:'#5b9fda', label:'congruent'},
      {word:'GREEN', hex:'#e05c5c', label:'incongruent'},
      {word:'RED',   hex:'#5b9fda', label:'incongruent'},
      {word:'XXX',   hex:'#4ec994', label:'neutral'},
    ];
    let idx=0,t=0,phase=0;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>55){t=0;phase=(phase+1)%2;if(phase===0){idx=(idx+1)%pairs.length;}}
      clear(ctx);
      const p=pairs[idx];
      if(phase===0){
        ctx.font='bold 16px monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('+',W/2,H/2+6);
        cap(ctx,'fixation');
      } else {
        ctx.font='bold 36px "EB Garamond",serif';ctx.fillStyle=p.hex;ctx.textAlign='center';ctx.fillText(p.word,W/2,H/2+12);
        const col=p.label==='congruent'?'#81c784':p.label==='incongruent'?'#e57373':'#7a8a96';
        cap(ctx,p.label,col);
      }
    }tick();
  }

  function animDST(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const seqs=[[3,7,2],[8,1,5,9],[4,2,7,3,6]];
    let si=0,di=0,t=0,phase=0,showing=false;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>30){t=0;phase=(phase+1)%3;
        if(phase===0){di++;if(di>=seqs[si].length){di=0;si=(si+1)%seqs.length;}}
      }
      clear(ctx);
      if(phase===0||phase===2){
        ctx.font='bold 52px "Source Code Pro",monospace';
        ctx.fillStyle='#c8a84b';ctx.textAlign='center';
        ctx.fillText(seqs[si][di],W/2,H/2+18);
        cap(ctx,'digit '+( seqs[si][di]),'#c8a84b');
      } else {
        ctx.font='bold 18px monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('+',W/2,H/2+6);
        cap(ctx,'fixation');
      }
      // dots
      const dots=seqs[si].length;const dw=12,gap=6,total=dots*(dw+gap)-gap;
      const sx=(W-total)/2;
      for(let i=0;i<dots;i++){
        ctx.beginPath();ctx.arc(sx+i*(dw+gap)+dw/2,H-20,dw/2,0,Math.PI*2);
        ctx.fillStyle=i<=di?'#c8a84b':'#1a2f44';ctx.fill();
      }
    }tick();
  }

  function animCNV(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    let t=0,phase=0; // 0=fix 1=s1 2=fp 3=s2 4=fb
    const fpDur=50; // frames for foreperiod animation
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>fpDur+20){t=0;phase=(phase+1)%5;}
      clear(ctx);
      ctx.textAlign='center';
      if(phase===0){
        // fixation
        ctx.font='bold 18px monospace';ctx.fillStyle=MID;ctx.fillText('+',W/2,H/2+6);
        cap(ctx,'fixation');
      } else if(phase===1){
        // S1 warning
        ctx.beginPath();ctx.arc(W/2,H/2,28,0,Math.PI*2);
        ctx.strokeStyle='#4a8aaa';ctx.lineWidth=2;ctx.stroke();
        ctx.font='16px monospace';ctx.fillStyle='#4a8aaa';ctx.fillText('◦',W/2,H/2+5);
        cap(ctx,'S1 — warning tone','#4a8aaa');
      } else if(phase===2){
        // foreperiod bar growing
        ctx.beginPath();ctx.arc(W/2,H/2,28,0,Math.PI*2);
        ctx.strokeStyle='#2a4060';ctx.lineWidth=2;ctx.stroke();
        ctx.font='bold 18px monospace';ctx.fillStyle=MID;ctx.fillText('+',W/2,H/2+6);
        // fp bar
        const pct=Math.min(1,t/fpDur);
        const bw=100,bh=6,bx=(W-bw)/2,by=H/2+48;
        ctx.fillStyle='#0e1e2c';ctx.fillRect(bx,by,bw,bh);
        ctx.fillStyle='#c8a84b';ctx.fillRect(bx,by,bw*pct,bh);
        cap(ctx,'foreperiod','#2a4060');
      } else if(phase===3){
        // S2 imperative
        ctx.beginPath();ctx.arc(W/2,H/2,28,0,Math.PI*2);
        ctx.strokeStyle='#c8a84b';ctx.lineWidth=2;ctx.stroke();
        ctx.fillStyle='#c8a84b';ctx.beginPath();ctx.arc(W/2,H/2,20,0,Math.PI*2);ctx.fill();
        cap(ctx,'S2 — respond now!','#c8a84b');
      } else {
        // feedback
        ctx.font='bold 18px monospace';ctx.fillStyle='#4ec994';ctx.fillText('✓',W/2,H/2+6);
        cap(ctx,'250 ms','#4ec994');
      }
    }tick();
  }

  function animFTT(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    let t=0,phase=0,tapFlash=0;
    const phases=[
      {label:'DOMINANT',col:'#c8a84b',hand:'👆'},
      {label:'NON-DOM', col:'#5b9fda',hand:'☝'},
      {label:'ALT',     col:'#4ec994',hand:'👈 👉'},
    ];
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      tapFlash=Math.max(0,tapFlash-1);
      if(t>40){t=0;phase=(phase+1)%phases.length;}
      clear(ctx);
      const p=phases[phase];
      // circle button
      ctx.beginPath();ctx.arc(W/2,H/2-8,28,0,Math.PI*2);
      ctx.strokeStyle=tapFlash>0?p.col:'#2a4060';
      ctx.lineWidth=2;ctx.stroke();
      if(tapFlash>0){ctx.fillStyle=p.col+'22';ctx.fill();}
      // hand emoji
      ctx.font='22px serif';ctx.textAlign='center';ctx.fillText(p.hand,W/2,H/2+2);
      cap(ctx,p.label,p.col);
      // simulate random taps
      if(Math.random()<0.18){tapFlash=6;}
    }tick();
  }

  function animN200(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const seq=[{s:'●',go:true},{s:'○',go:false},{s:'●',go:true},{s:'●',go:true},{s:'○',go:false}];
    let fi=0,phase=0,t=0;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>70){t=0;phase=(phase+1)%3;if(phase===0)fi=(fi+1)%seq.length;}
      const f=seq[fi];clear(ctx);
      const cx=W/2,cy=H/2-8,col=f.go?GOLD:'#5b9fda';
      ctx.beginPath();ctx.arc(cx,cy,26,0,Math.PI*2);ctx.strokeStyle=col;ctx.lineWidth=2;ctx.fillStyle=f.go?'rgba(212,165,32,0.12)':'rgba(91,159,218,0.12)';ctx.fill();ctx.stroke();
      ctx.font='bold 22px monospace';ctx.fillStyle=col;ctx.textAlign='center';ctx.textBaseline='middle';ctx.fillText(f.s,cx,cy);ctx.textBaseline='alphabetic';
      if(phase>=1){
        const lbl=f.go?'F / SPACE':'— withhold —';const lcol=f.go?'#81c784':MID;
        ctx.font='10px "Source Code Pro",monospace';ctx.fillStyle=lcol;ctx.textAlign='center';ctx.fillText(lbl,W/2,cy+42);
      }
      cap(ctx,f.go?'GO — respond fast (75%)':'NO-GO — inhibit response (25%)',col);
    }tick();
  }

  function animN170(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const types=['face','face-inv','object'];
    let ti=0,phase=0,t=0;
    function drawFace(cx,cy,inv){
      ctx.save();if(inv){ctx.translate(cx,cy);ctx.rotate(Math.PI);ctx.translate(-cx,-cy);}
      ctx.beginPath();ctx.ellipse(cx,cy,22,28,0,0,Math.PI*2);ctx.strokeStyle='#8ab4d0';ctx.lineWidth=1.5;ctx.stroke();
      [-8,8].forEach(dx=>{ctx.beginPath();ctx.ellipse(cx+dx,cy-6,5,3,0,0,Math.PI*2);ctx.strokeStyle=GOLD;ctx.lineWidth=1.5;ctx.stroke();});
      ctx.beginPath();ctx.arc(cx,cy+6,8,0.2,Math.PI-0.2);ctx.strokeStyle='#8ab4d0';ctx.lineWidth=1.5;ctx.stroke();
      ctx.restore();
    }
    function drawObj(cx,cy){
      ctx.beginPath();ctx.moveTo(cx,cy-26);ctx.lineTo(cx+22,cy+16);ctx.lineTo(cx-22,cy+16);ctx.closePath();
      ctx.strokeStyle='#8ab4d0';ctx.lineWidth=1.5;ctx.fillStyle='rgba(138,180,208,0.1)';ctx.fill();ctx.stroke();
    }
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>65){t=0;phase=(phase+1)%2;if(phase===0)ti=(ti+1)%types.length;}
      clear(ctx);const tp=types[ti];const cx=W/2,cy=H/2-5;
      if(phase===1){
        if(tp==='object')drawObj(cx,cy);else drawFace(cx,cy,tp==='face-inv');
        const lbl=tp==='object'?'J = OBJECT':'F = FACE';const col=tp==='object'?'#5b9fda':GOLD;
        ctx.font='10px "Source Code Pro",monospace';ctx.fillStyle=col;ctx.textAlign='center';ctx.fillText(lbl,W/2,cy+40);
      }else{ctx.font='bold 18px monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('+',W/2,H/2+6);}
      cap(ctx,tp==='object'?'OBJECT — geometric shape':tp==='face-inv'?'FACE (inverted) — larger N170':'FACE (upright) — N170 ~170 ms',tp==='object'?'#5b9fda':GOLD);
    }tick();
  }

  function animLRP(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    let phase=0,t=0,dir='L';
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>50){t=0;phase=(phase+1)%3;if(phase===0)dir=dir==='L'?'R':'L';}
      clear(ctx);
      const lx=W/2-60,rx=W/2+60,cy=H/2-5;
      const lActive=phase>=1&&dir==='L',rActive=phase>=1&&dir==='R';
      rect(ctx,lx-22,cy-22,44,44,lActive?GOLD:'#1a2f44',lActive?'rgba(212,165,32,0.12)':NAVY);
      ctx.font='bold 22px monospace';ctx.fillStyle=lActive?GOLD:MID;ctx.textAlign='center';ctx.textBaseline='middle';ctx.fillText('←',lx,cy);
      rect(ctx,rx-22,cy-22,44,44,rActive?GOLD:'#1a2f44',rActive?'rgba(212,165,32,0.12)':NAVY);
      ctx.fillStyle=rActive?GOLD:MID;ctx.fillText('→',rx,cy);ctx.textBaseline='alphabetic';
      if(phase>=2){
        const hx=dir==='L'?lx:rx;
        ctx.font='10px "Source Code Pro",monospace';ctx.fillStyle='#81c784';ctx.textAlign='center';ctx.fillText(dir==='L'?'F pressed':'J pressed',hx,cy+34);
      }
      cap(ctx,phase===0?'fixation':dir==='L'?'F = left hand':'J = right hand',phase===0?MID:GOLD);
    }tick();
  }

  function animN2PC(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    let phase=0,t=0,targetSide='L',targetIdx=2;
    const posL=[[55,45],[55,75],[55,105],[90,45],[90,75],[90,105]];
    const posR=[[W-55,45],[W-55,75],[W-55,105],[W-90,45],[W-90,75],[W-90,105]];
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>60){t=0;phase=(phase+1)%3;if(phase===0){targetSide=targetSide==='L'?'R':'L';targetIdx=Math.floor(Math.random()*6);}}
      clear(ctx);
      ctx.strokeStyle='rgba(138,180,208,0.4)';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(W/2,40);ctx.lineTo(W/2,100);ctx.moveTo(W/2-8,70);ctx.lineTo(W/2+8,70);ctx.stroke();
      if(phase===1){
        [posL,posR].forEach((side,si)=>{
          side.forEach((pos,pi)=>{
            const isTgt=(si===0&&targetSide==='L'||si===1&&targetSide==='R')&&pi===targetIdx;
            ctx.beginPath();ctx.arc(pos[0],pos[1],10,0,Math.PI*2);
            ctx.fillStyle=isTgt?'rgba(212,165,32,0.2)':'rgba(26,42,58,0.6)';ctx.strokeStyle=isTgt?GOLD:MID;ctx.lineWidth=1.5;ctx.fill();ctx.stroke();
          });
        });
      }else{ctx.font='bold 16px monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('+',W/2,75);}
      if(phase>=2){ctx.font='10px "Source Code Pro",monospace';ctx.fillStyle='#81c784';ctx.textAlign='center';ctx.fillText(targetSide==='L'?'F = LEFT':'J = RIGHT',W/2,95);}
      cap(ctx,phase===0?'fixation':phase===1?'200 ms array — find gold target':'respond to target side',phase===0?MID:GOLD);
    }tick();
  }

  function animN300(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const pairs=[{p:'🐱',t:'🐶',same:true,l:'SAME category (animals)'},{p:'🚗',t:'🍎',same:false,l:'DIFFERENT category'},{p:'🔨',t:'🔧',same:true,l:'SAME category (tools)'},{p:'🪑',t:'🌮',same:false,l:'DIFFERENT category'}];
    let pi=0,phase=0,t=0;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>55){t=0;phase=(phase+1)%3;if(phase===0)pi=(pi+1)%pairs.length;}
      clear(ctx);const p=pairs[pi];const cx=W/2;
      if(phase===0){
        ctx.font='28px serif';ctx.textAlign='center';ctx.textBaseline='middle';ctx.fillText(p.p,cx-55,H/2-5);
        ctx.font='10px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.textBaseline='alphabetic';ctx.fillText('PRIME',cx-55,H/2+26);
      }else{
        ctx.font='28px serif';ctx.textAlign='center';ctx.textBaseline='middle';ctx.globalAlpha=phase===1?0.4:1;ctx.fillText(p.p,cx-55,H/2-5);ctx.globalAlpha=1;
        ctx.fillText(p.t,cx+55,H/2-5);ctx.textBaseline='alphabetic';
        ctx.font='10px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('TARGET',cx+55,H/2+26);
        ctx.strokeStyle=MID;ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(cx-30,H/2-5);ctx.lineTo(cx+30,H/2-5);const a=0;const ex=cx+30,ey=H/2-5;ctx.moveTo(ex-6,ey-4);ctx.lineTo(ex,ey);ctx.lineTo(ex-6,ey+4);ctx.stroke();
      }
      if(phase===2){const col=p.same?'#81c784':'#e57373';ctx.font='10px "Source Code Pro",monospace';ctx.fillStyle=col;ctx.textAlign='center';ctx.fillText(p.same?'F = SAME':'J = DIFFERENT',cx,H/2+44);}
      cap(ctx,p.l,p.same?'#81c784':'#e57373');
    }tick();
  }

  function animELAN(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const sents=[{words:['The','pianist','beautifully','played'],ok:true},{words:['The','pianist','of','played'],ok:false}];
    let si=0,wi=0,phase=0,t=0;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>30){t=0;phase=(phase+1)%2;if(phase===0){wi++;if(wi>=sents[si].words.length){wi=0;si=(si+1)%sents.length;}}}
      clear(ctx);const s=sents[si];const isViol=!s.ok&&wi===2;
      ctx.font='bold 22px "EB Garamond",serif';
      ctx.fillStyle=isViol?'#e57373':GOLD;ctx.textAlign='center';ctx.textBaseline='middle';
      ctx.fillText(phase===0?'+':s.words[wi],W/2,H/2-5);ctx.textBaseline='alphabetic';
      if(wi>0){ctx.font='11px "EB Garamond",serif';ctx.fillStyle='rgba(212,165,32,0.45)';ctx.textAlign='center';ctx.fillText(s.words.slice(0,wi).join(' ')+' …',W/2,H/2+28);}
      cap(ctx,s.ok?'GRAMMATICAL — F':isViol?'VIOLATION at position '+wi+' — J':'reading …',s.ok?'#81c784':'#e57373');
    }tick();
  }

  function animBP(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    let t=0,pressed=false,pressT=0,flashW=0;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(!pressed&&t>120){pressed=true;pressT=t;flashW=0;}
      if(pressed&&t-pressT>80){pressed=false;t=0;}
      clear(ctx);
      const cx=W/2,cy=H/2-5,progress=pressed?Math.min(1,(t-pressT)/30):0;
      const bpLen=Math.min(1,t/120);
      // draw slow negative ramp (simplified ERP trace)
      ctx.beginPath();const tw=W*0.7,tx=(W-tw)/2;
      for(let x=0;x<tw;x++){const frac=x/tw;const amp=frac<bpLen?-Math.sin(frac*Math.PI)*30*frac:0;ctx.lineTo(tx+x,cy+amp);}
      ctx.strokeStyle='rgba(212,165,32,0.4)';ctx.lineWidth=1.5;ctx.stroke();
      // keypress indicator
      ctx.beginPath();ctx.arc(cx,cy+10,18,0,Math.PI*2);ctx.strokeStyle=pressed?GOLD:MID;ctx.lineWidth=2;ctx.fillStyle=pressed?'rgba(212,165,32,0.2)':'#0a1620';ctx.fill();ctx.stroke();
      ctx.font='10px "Source Code Pro",monospace';ctx.fillStyle=pressed?GOLD:MID;ctx.textAlign='center';ctx.fillText('SPC',cx,cy+14);
      cap(ctx,pressed?'▲ press recorded':'self-paced — press SPACE whenever ready',pressed?GOLD:MID);
    }tick();
  }

  function animMMNSP(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const seq=[false,false,false,true,false,false,false,false,true,false,false];
    let ti=0,phase=0,t=0;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>35){t=0;phase=(phase+1)%2;if(phase===0)ti=(ti+1)%seq.length;}
      clear(ctx);const isDev=seq[ti];const r=isDev?28:18,cy=H/2-5;
      ctx.beginPath();ctx.arc(W/2,cy,r,0,Math.PI*2);ctx.fillStyle=isDev?'rgba(91,159,218,0.15)':'rgba(26,42,58,0.5)';ctx.fill();
      ctx.strokeStyle=isDev?'#5b9fda':MID;ctx.lineWidth=2;ctx.stroke();
      ctx.font=`bold ${isDev?16:13}px "EB Garamond",serif`;ctx.fillStyle=isDev?'#5b9fda':MID;ctx.textAlign='center';ctx.textBaseline='middle';ctx.fillText(isDev?'/pa/':'/ba/',W/2,cy);ctx.textBaseline='alphabetic';
      ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=isDev?'#5b9fda':MID;ctx.textAlign='center';ctx.fillText(isDev?'long VOT':'short VOT',W/2,cy+r+14);
      cap(ctx,isDev?'DEVIANT /pa/ (20%) — MMN component':'STANDARD /ba/ (80%) — passive listen',isDev?'#5b9fda':MID);
    }tick();
  }

  function animSSVEP(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    let t=0;const lHz=10,rHz=15;
    const lx=W/2-80,rx=W/2+80,cy=H/2-5,sz=40;
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      clear(ctx);
      const sec=t/60;
      const lOn=Math.floor(sec*lHz)%2===0;
      const rOn=Math.floor(sec*rHz)%2===0;
      rect(ctx,lx-sz/2,cy-sz/2,sz,sz,lOn?GOLD:'#1a2f44',lOn?'rgba(212,165,32,0.85)':NAVY);
      rect(ctx,rx-sz/2,cy-sz/2,sz,sz,rOn?'#5b9fda':'#1a2f44',rOn?'rgba(91,159,218,0.85)':NAVY);
      ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';
      ctx.fillText(lHz+' Hz',lx,cy+sz/2+14);ctx.fillText(rHz+' Hz',rx,cy+sz/2+14);
      ctx.font='bold 14px monospace';ctx.fillStyle=MID;ctx.fillText('+',W/2,cy+5);
      cap(ctx,'fixate centre — EEG peaks at exactly 10 Hz & 15 Hz');
    }tick();
  }

  // ── Serial Probe Recognition (Sands & Wright, 1980, Science) ────────
  // Visual: study list of small colored shape tiles → retention → probe.
  // Mirrors the actual SPR task flow that the user sees.
  function animSPR(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    // 4 distinct study tiles + 1 probe (50/50 in-list vs foil per cycle)
    const tiles=[
      {shape:'circle',col:'#e74c3c'},
      {shape:'square',col:'#3498db'},
      {shape:'triangle',col:'#2ecc71'},
      {shape:'diamond',col:'#f1c40f'}
    ];
    let probeIdx=2,probeIn=true,phase=0,t=0;
    function drawTile(cx,cy,r,tile,active){
      ctx.save();
      ctx.strokeStyle=active?GOLD:'rgba(212,165,32,0.4)';
      ctx.lineWidth=active?2.2:1.4;
      ctx.fillStyle=active?tile.col:_dim(tile.col,0.5);
      ctx.beginPath();
      if(tile.shape==='circle'){ctx.arc(cx,cy,r,0,Math.PI*2);}
      else if(tile.shape==='square'){ctx.rect(cx-r,cy-r,r*2,r*2);}
      else if(tile.shape==='triangle'){ctx.moveTo(cx,cy-r);ctx.lineTo(cx+r,cy+r);ctx.lineTo(cx-r,cy+r);ctx.closePath();}
      else if(tile.shape==='diamond'){ctx.moveTo(cx,cy-r);ctx.lineTo(cx+r,cy);ctx.lineTo(cx,cy+r);ctx.lineTo(cx-r,cy);ctx.closePath();}
      ctx.fill();ctx.stroke();
      ctx.restore();
    }
    function _dim(hex,a){
      // simple hex → rgba with alpha
      var r=parseInt(hex.slice(1,3),16),g=parseInt(hex.slice(3,5),16),b=parseInt(hex.slice(5,7),16);
      return 'rgba('+r+','+g+','+b+','+a+')';
    }
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      // Phases: 0–3 = study items appear; 4 = retention; 5 = probe; 6 = response
      if(t>30){
        t=0;phase++;
        if(phase>6){
          phase=0;
          probeIn=Math.random()<0.5;
          probeIdx=probeIn?Math.floor(Math.random()*4):-1;
        }
      }
      clear(ctx);
      const cy=H/2-6,r=14,spacing=46,startX=W/2-spacing*1.5;
      if(phase<=3){
        // Study phase — reveal tiles left-to-right one per phase tick
        ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';
        ctx.fillText('STUDY — ITEM '+(phase+1)+'/4',W/2,16);
        tiles.forEach((tile,i)=>{
          const cx=startX+i*spacing;
          if(i<=phase) drawTile(cx,cy,r,tile,i===phase);
          else { ctx.strokeStyle='rgba(80,100,120,0.3)';ctx.lineWidth=1;ctx.beginPath();ctx.arc(cx,cy,r,0,Math.PI*2);ctx.stroke(); }
        });
        cap(ctx,'memorise each item');
      } else if(phase===4){
        ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';
        ctx.fillText('RETENTION',W/2,16);
        ctx.font='22px monospace';ctx.fillStyle=DIM;ctx.textAlign='center';ctx.fillText('+',W/2,cy+8);
        cap(ctx,'1-second retention interval');
      } else {
        // Probe — single tile centered
        ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';
        ctx.fillText('PROBE — was this in the list?',W/2,16);
        const probeTile = probeIn ? tiles[probeIdx] : {shape:'star',col:'#9b59b6'};
        // draw probe (use diamond as visually-distinct "foil" if not in list)
        var pt = probeIn ? probeTile : {shape:'square',col:'#9b59b6'};
        drawTile(W/2,cy,r+4,pt,true);
        if(phase===6){
          cap(ctx,probeIn?'F / left-click — YES':'J / right-click — NO',probeIn?'#81c784':'#e57373');
        } else {
          cap(ctx,'F = YES (in list)   J = NO (foil)');
        }
      }
    }tick();
  }

  // ── Auditory SPR — same paradigm, audio pulses instead of shapes ────
  function animSPRA(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    let phase=0,t=0,probeIn=true,probeIdx=1;
    function pulse(cx,cy,r,active,col){
      // Animated ring — outer expanding, inner solid when active
      const expand=active?(1+Math.sin(t*0.25)*0.18):1;
      ctx.save();
      ctx.strokeStyle=active?col:'rgba(212,165,32,0.35)';
      ctx.lineWidth=active?2:1.2;
      ctx.beginPath();ctx.arc(cx,cy,r*expand,0,Math.PI*2);ctx.stroke();
      ctx.fillStyle=active?'rgba(212,165,32,0.18)':'rgba(212,165,32,0.05)';
      ctx.beginPath();ctx.arc(cx,cy,r*0.7,0,Math.PI*2);ctx.fill();
      ctx.font='bold 11px "Source Code Pro",monospace';
      ctx.fillStyle=active?col:MID;ctx.textAlign='center';ctx.textBaseline='middle';
      ctx.fillText('♪',cx,cy);ctx.textBaseline='alphabetic';
      ctx.restore();
    }
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>30){t=0;phase++;
        if(phase>6){phase=0;probeIn=Math.random()<0.5;probeIdx=probeIn?Math.floor(Math.random()*4):-1;}
      }
      clear(ctx);
      const cy=H/2-6,r=15,spacing=46,startX=W/2-spacing*1.5;
      if(phase<=3){
        ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';
        ctx.fillText('LISTEN — SOUND '+(phase+1)+'/4',W/2,16);
        for(let i=0;i<4;i++){
          const cx=startX+i*spacing;
          if(i<=phase) pulse(cx,cy,r,i===phase,GOLD);
          else { ctx.strokeStyle='rgba(80,100,120,0.3)';ctx.lineWidth=1;ctx.beginPath();ctx.arc(cx,cy,r,0,Math.PI*2);ctx.stroke(); }
        }
        cap(ctx,'remember each sound');
      } else if(phase===4){
        ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';
        ctx.fillText('RETENTION',W/2,16);
        ctx.font='22px monospace';ctx.fillStyle=DIM;ctx.textAlign='center';ctx.fillText('+',W/2,cy+8);
        cap(ctx,'1-second retention interval');
      } else {
        ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';
        ctx.fillText('PROBE — was this sound in the list?',W/2,16);
        pulse(W/2,cy,r+5,true,probeIn?'#81c784':'#e57373');
        if(phase===6){
          cap(ctx,probeIn?'F / left-click — YES':'J / right-click — NO',probeIn?'#81c784':'#e57373');
        } else {
          cap(ctx,'F = YES (in list)   J = NO (foil)');
        }
      }
    }tick();
  }

  // ── Matching-to-Sample (Wright/Santiago/Sands) ─────────────────────
  function animMTS(){
    const ctx=getCtx();if(!ctx)return;
    const W=ctx.canvas.width,H=ctx.canvas.height;
    const shapes=[
      {s:'circle',c:'#e74c3c'},
      {s:'square',c:'#3498db'},
      {s:'triangle',c:'#2ecc71'}
    ];
    let matchIdx=0,order=[0,1,2],phase=0,t=0;
    function drawShape(cx,cy,r,sh,active){
      ctx.save();
      ctx.strokeStyle=active?GOLD:'rgba(212,165,32,0.45)';
      ctx.lineWidth=active?2.2:1.4;
      ctx.fillStyle=active?sh.c:_dimc(sh.c,0.45);
      ctx.beginPath();
      if(sh.s==='circle'){ctx.arc(cx,cy,r,0,Math.PI*2);}
      else if(sh.s==='square'){ctx.rect(cx-r,cy-r,r*2,r*2);}
      else if(sh.s==='triangle'){ctx.moveTo(cx,cy-r);ctx.lineTo(cx+r,cy+r);ctx.lineTo(cx-r,cy+r);ctx.closePath();}
      ctx.fill();ctx.stroke();ctx.restore();
    }
    function _dimc(hex,a){var r=parseInt(hex.slice(1,3),16),g=parseInt(hex.slice(3,5),16),b=parseInt(hex.slice(5,7),16);return 'rgba('+r+','+g+','+b+','+a+')';}
    function tick(){animRAF=requestAnimationFrame(tick);t++;
      if(t>40){t=0;phase++;
        if(phase>3){phase=0;matchIdx=Math.floor(Math.random()*3);
          order=[0,1,2];for(let i=2;i>0;i--){const j=Math.floor(Math.random()*(i+1));[order[i],order[j]]=[order[j],order[i]];}
        }
      }
      clear(ctx);
      const r=15;
      if(phase===0){
        ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';
        ctx.fillText('SAMPLE',W/2,16);
        drawShape(W/2,H/2-2,r+3,shapes[matchIdx],true);
        cap(ctx,'observe the sample');
      } else {
        ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';
        ctx.fillText('SAMPLE',W/2-100,H/2-2);
        drawShape(W/2-100,H/2+18,r-2,shapes[matchIdx],true);
        const cy=H/2,spacing=64,startX=W/2-spacing+10;
        order.forEach((sIdx,disp)=>{
          if(disp>=phase && phase<3) return;
          const cx=startX+disp*spacing;
          const isMatch=sIdx===matchIdx;
          drawShape(cx,cy,r,shapes[sIdx],phase===3&&isMatch);
          ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';
          ctx.fillText((disp+1),cx,cy+r+14);
        });
        if(phase===3){
          cap(ctx,'click the match · 1 / 2 / 3','#81c784');
        } else {
          cap(ctx,'choose the comparison matching the sample');
        }
      }
    }tick();
  }

  const ANIM_MAP={GNG:animGNG,CNV:animCNV,FTT:animFTT,N400:animN400,FLANKER:animFLANKER,STOP:animSTOP,MMN:animMMN,P600:animP600,ERN:animERN,STROOP:animSTROOP,DST:animDST,NBACK:animNBACK,SPATIAL:animSPATIAL,POSNER:animPOSNER,RECALL:animRECALL,WCST:animWCST,VRT:animVRT,CSR:animCSR,P300:animP300,STB:animSTB,TMT:animTMT,DSC:animDSC,PNT:animPNT,MRT:animMRT,N200:animN200,N170:animN170,N2PC:animN2PC,N300:animN300,ELAN:animELAN,BP:animBP,MMNSP:animMMNSP,SSVEP:animSSVEP,SPR:animSPR,'SPR-A':animSPRA,MTS:animMTS,P50:"animP50",N100:"animN100",SCP:"animSCP",P3A:"animP3A",ASSR:"animASSR",CPT:"animCPT",EMOTSTROOP:"animEmotStroop",TASKSWITCH:"animTaskSwitch",DUALTASK:"animDualTask",ATTBLINK:"animAttBlink",SUBITIZE:"animSubitize",LEXDEC:"animLexDec",SEMFLUENCY:"animSemFluency",PROSMEM:"animProsMem",SPATWM:"animSpatWM",REWP:"animREWP",MOCA:"animMoCA",DIGCAN:"animDigCan",ABR:"animABR",P1N1:"animP1N1",CNVW:"animCNVW",THALPHA:"animTHALPHA",LRP:animLRP,SYMSEARCH:"animSymSearch",PHONFLUE:"animPhonFlue",JLO:"animJLO",PASAT:"animPASAT",RAVLT:"animRAVLT",CVLT:"animCVLT",IGT:"animIGT",TOL:"animTOL",RMET:"animRMET",SART:"animSART",UFOV:"animUFOV",PAL:"animPAL",SRCMEM:"animSrcMem",BNT:"animBNT",FER:"animFER",TOJ:"animTOJ",MATRIX:"animMatrix",META:"animMeta",PHQ9:"animPHQ9",GAD7:"animGAD7",PCL5:"animPCL5",AUDIT:"animAUDIT",ASRS:"animASRS",N1P2:"animN1P2",RON:"animRON",LAN:"animLAN",CPS:"animCPS",N2B:"animN2B",PD:"animPD",ERAN:"animERAN",LPC:"animLPC",FRN:"animFRN",CDA:"animCDA",LDAEP:"animLDAEP",C1:"animC1",PMN:"animPMN",VPP:"animVPP",PE:"animPE",ORN:"animORN",MFN:"animMFN",SNELLEN:"animSnellen",ISHIHARA:"animIshihara",SEASHORE:"animSeashore",AUDIOM:"animAudiom",GABOR:"animGabor",CDT:"animCDT",STAR:"animStar",HACHINSKI:"animHachinski",KATZ:"animKatz",LAWTON:"animLawton"};

  window._runIntroAnim = function(task){
    stopAnim();
    var entry=ANIM_MAP[task];
    // entry is either a function (old) or a string function name (new)
    var fn=typeof entry==='function'?entry:window[entry];
    if(typeof fn==='function') setTimeout(function(){ animRAF=requestAnimationFrame(fn); }, 20);
  };
})();

// ═══════════════════════════════════════════════════════════
// FLANKER ENGINE
// ═══════════════════════════════════════════════════════════
const FLANKER={active:false,isPractice:false,trial:0,maxTrials:0,log:[],practiceLog:[],waiting:false,stimOn:0,_timers:[],currentTrial:null};
const FLANKER_STIMS=[
  // congruent
  {arrows:'← ← ← ← ←',direction:'L',condition:'congruent'},
  {arrows:'→ → → → →',direction:'R',condition:'congruent'},
  // incongruent
  {arrows:'→ → ← → →',direction:'L',condition:'incongruent'},
  {arrows:'← ← → ← ←',direction:'R',condition:'incongruent'},
  // neutral
  {arrows:'— — ← — —',direction:'L',condition:'neutral'},
  {arrows:'— — → — —',direction:'R',condition:'neutral'},
];
function flankerT(fn,ms){const t=setTimeout(fn,ms);FLANKER._timers.push(t);return t;}
function flankerClear(){FLANKER._timers.forEach(t=>clearTimeout(t));FLANKER._timers=[];}
function startFlanker(isPractice){
  FLANKER.active=true;FLANKER.isPractice=isPractice;
  FLANKER.maxTrials = taskTrials('FLANKER',8,40,isPractice);
  FLANKER.trial=0;FLANKER.waiting=false;
  if(!isPractice){FLANKER.log=[];}else{FLANKER.practiceLog=[];}
  flankerClear();hideAll();
  $('flankerScreen').style.display='flex';
  $('flankerPracticeBanner').style.display=isPractice?'block':'none';
  $('flankerStimPhase').style.display='none';$('flankerResultsPhase').style.display='none';
  $('exportBtn').disabled=true;
  speak(isPractice?'Practice Flanker task.':'Starting Flanker task.');
  flankerNext();
}
function flankerNext(){
  if(FLANKER.trial>=FLANKER.maxTrials){flankerEnd();return;}
  FLANKER.trial++;
  $('flanker-trial').textContent='Trial '+FLANKER.trial+'/'+FLANKER.maxTrials;
  $('flankerProgressBar').style.width=((FLANKER.trial-1)/FLANKER.maxTrials*100).toFixed(1)+'%';
  FLANKER.waiting=false;$('flankerFeedback').textContent='';$('flankerFeedback').className='feedback';
  $('flankerRespRow').style.display='none';
  // pick balanced stim
  const pool=FLANKER_STIMS;
  const s=pool[Math.floor(Math.random()*pool.length)];
  FLANKER.currentTrial=s;
  $('flankerStimPhase').style.display='flex';
  $('flanker-phase').textContent=tr('FIXATION');
  $('flankerStim').textContent='+';$('flankerStim').style.color='var(--mid)';
  flankerT(()=>{
    $('flanker-phase').textContent=s.condition.toUpperCase();
    $('flankerStim').innerHTML=cognosFlankerRowHTML(s.arrows,{color:'#e8e0d0'});
    $('flankerStim').style.display='flex';$('flankerStim').style.alignItems='center';$('flankerStim').style.justifyContent='center';
    $('flankerRespRow').style.display='flex';
    FLANKER.stimOn=performance.now();FLANKER.waiting=true;
    flankerT(()=>{if(FLANKER.waiting)flankerRespond('TIMEOUT');},1000);
  },500);
}
function flankerRespond(resp){
  if(!FLANKER.waiting)return;FLANKER.waiting=false;flankerClear();
  const s=FLANKER.currentTrial;
  const rt=resp==='TIMEOUT'?null:(performance.now()-FLANKER.stimOn);
  const correct=resp==='TIMEOUT'?false:resp===s.direction;
  const entry={trial:FLANKER.trial,condition:s.condition,direction:s.direction,response:resp,correct,rt:rt?+rt.toFixed(1):null};
  (FLANKER.isPractice?FLANKER.practiceLog:FLANKER.log).push(entry);
  const fb=$('flankerFeedback');
  fb.textContent=resp==='TIMEOUT'?'T/O':(rt.toFixed(0)+' ms '+(correct?'✓':'✗'));
  fb.className='feedback '+(resp==='TIMEOUT'?'timeout':correct?'ok':'err');
  $('flankerRespRow').style.display='none';updateSidebar();
  flankerT(flankerNext,350);
}
document.addEventListener('keydown',e=>{
  if(!FLANKER.active||!FLANKER.waiting)return;
  if(e.key==='f'||e.key==='F'){e.preventDefault();flankerRespond('L');}
  if(e.key==='j'||e.key==='J'){e.preventDefault();flankerRespond('R');}
});
function flankerEnd(){
  FLANKER.active=false;$('flankerStimPhase').style.display='none';$('flankerProgressBar').style.width='100%';
  const log=FLANKER.isPractice?FLANKER.practiceLog:FLANKER.log;
  if(FLANKER.isPractice){
    const c=log.filter(r=>r.correct).length;const rts=log.filter(r=>r.rt);const avgRT=rts.length?(rts.reduce((a,b)=>a+b.rt,0)/rts.length).toFixed(0):'--';
    hideAll();$('pcStats').innerHTML='TRIALS &nbsp;<span>'+log.length+'</span> &nbsp;&nbsp; ACC &nbsp;<span>'+(log.length?(c/log.length*100).toFixed(0):0)+'%</span> &nbsp;&nbsp; AVG RT &nbsp;<span>'+avgRT+' ms</span>';
    $('practiceComplete').style.display='flex';speak('Practice complete.');return;
  }
  $('exportBtn').disabled=false;
  const mean=arr=>arr.length?(arr.reduce((a,b)=>a+b.rt,0)/arr.length):null;
  const cong=log.filter(r=>r.condition==='congruent'&&r.correct&&r.rt);
  const incong=log.filter(r=>r.condition==='incongruent'&&r.correct&&r.rt);
  const neut=log.filter(r=>r.condition==='neutral'&&r.correct&&r.rt);
  const cRT=mean(cong),iRT=mean(incong),nRT=mean(neut);
  const conflict=cRT&&iRT?(iRT-cRT).toFixed(0)+' ms':'--';
  $('flankerMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+(cRT?cRT.toFixed(0)+'ms':'--')+'</div><div class="vm-lbl">Congruent RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(iRT?iRT.toFixed(0)+'ms':'--')+'</div><div class="vm-lbl">Incongruent RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+conflict+'</div><div class="vm-lbl">Conflict Cost (N2)</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+log.filter(r=>r.correct).length+'/'+log.length+'</div><div class="vm-lbl">Correct</div></div>';
  const cv=$('flankerChart');if(cv){
    const c2=cv.getContext('2d');cv.width=cv.offsetWidth||460;cv.height=140;c2.fillStyle='#060d14';c2.fillRect(0,0,cv.width,cv.height);
    const bars=[{l:'Congruent',v:cRT,col:'#81c784'},{l:'Neutral',v:nRT,col:'#7a8a96'},{l:'Incongruent',v:iRT,col:'#e57373'}];
    const maxV=Math.max(...bars.map(b=>b.v||0))*1.15||800;const bw=80,gap=30,sx=(cv.width-bars.length*(bw+gap)+gap)/2;
    bars.forEach((b,i)=>{const x=sx+i*(bw+gap),h=b.v?(b.v/maxV)*100:0,y=120-h;c2.fillStyle=b.col+'44';c2.fillRect(x,y,bw,h);c2.strokeStyle=b.col;c2.lineWidth=1.5;c2.strokeRect(x,y,bw,h);c2.fillStyle=b.col;c2.font='9px "Source Code Pro",monospace';c2.textAlign='center';c2.fillText(b.l,x+bw/2,135);if(b.v){c2.fillStyle='#e8e0d0';c2.fillText(b.v.toFixed(0)+'ms',x+bw/2,y-4);} });
  }
  $('flankerResultsPhase').style.display='block';speak('Flanker task complete. Conflict cost: '+conflict+'.');updateSidebar();
}
function flankerExportCSV(){
  if(!FLANKER.log.length)return;
  const h='trial,condition,direction,response,correct,rt_ms\n';
  const rows=FLANKER.log.map(r=>[r.trial,r.condition,r.direction,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):''].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});const a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='flanker_'+Date.now()+'.csv';a.click();
}

// ═══════════════════════════════════════════════════════════
// STOP SIGNAL ENGINE
// ═══════════════════════════════════════════════════════════
const STOP={active:false,isPractice:false,trial:0,maxTrials:0,log:[],practiceLog:[],waiting:false,stopWaiting:false,stimOn:0,ssd:250,_timers:[],currentTrial:null};
function stopT(fn,ms){const t=setTimeout(fn,ms);STOP._timers.push(t);return t;}
function stopClear(){STOP._timers.forEach(t=>clearTimeout(t));STOP._timers=[];}
function startStop(isPractice){
  STOP.active=true;STOP.isPractice=isPractice;
  STOP.maxTrials = taskTrials('STOP',10,40,isPractice);
  STOP.trial=0;STOP.ssd=250;
  if(!isPractice){STOP.log=[];}else{STOP.practiceLog=[];}
  stopClear();hideAll();
  $('stopScreen').style.display='flex';
  $('stopPracticeBanner').style.display=isPractice?'block':'none';
  $('stopStimPhase').style.display='none';$('stopResultsPhase').style.display='none';
  $('exportBtn').disabled=true;
  speak(isPractice?'Practice stop signal task.':'Starting stop signal task.');
  stopNext();
}
function stopNext(){
  if(STOP.trial>=STOP.maxTrials){stopEnd();return;}
  STOP.trial++;
  $('stop-trial').textContent='Trial '+STOP.trial+'/'+STOP.maxTrials;
  $('stopProgressBar').style.width=((STOP.trial-1)/STOP.maxTrials*100).toFixed(1)+'%';
  STOP.waiting=false;STOP.stopWaiting=false;
  $('stopFeedback').textContent='';$('stopFeedback').className='feedback';
  $('stopRespRow').style.display='none';$('stopSignalIndicator').textContent='';
  const isStop=Math.random()<0.25;
  const dir=Math.random()<0.5?'L':'R';
  STOP.currentTrial={isStop,dir,ssd:STOP.ssd};
  $('stopStimPhase').style.display='flex';
  $('stop-phase').textContent=tr('FIXATION');
  $('stopStim').textContent='+';$('stopStim').style.color='var(--mid)';
  stopT(()=>{
    $('stop-phase').textContent=isStop?'STOP TRIAL':'GO TRIAL';
    cognosSetArrow('stopStim', dir==='L'?'left':'right', {color:'#e8e0d0',w:120,h:60,strokeWidth:6});
    $('stopRespRow').style.display='flex';
    STOP.stimOn=performance.now();STOP.waiting=true;
    if(isStop){
      stopT(()=>{
        // play stop signal beep — R12: custom audio override
        if (typeof CustomAudio === 'undefined' || !CustomAudio.tryPlay('stop-signal', 0.3)) {
          try{const ac=new AudioContext();const o=ac.createOscillator();const g=ac.createGain();o.connect(g);g.connect(ac.destination);o.frequency.value=800;g.gain.setValueAtTime(0.3,ac.currentTime);g.gain.exponentialRampToValueAtTime(0.001,ac.currentTime+0.15);o.start();o.stop(ac.currentTime+0.15);}catch(e){}
        }
        $('stopSignalIndicator').textContent='⛔ STOP!';
        STOP.stopWaiting=true;
      },STOP.ssd);
    }
    stopT(()=>{if(STOP.waiting)stopRespond('TIMEOUT');},1000);
  },500);
}
function stopRespond(resp){
  if(!STOP.waiting)return;STOP.waiting=false;stopClear();
  const {isStop,dir,ssd}=STOP.currentTrial;
  const rt=resp==='TIMEOUT'?null:(performance.now()-STOP.stimOn);
  let correct=false;
  if(isStop) correct=(resp==='TIMEOUT'); // correct = withheld
  else correct=(resp!=='TIMEOUT'&&resp===dir);
  const entry={trial:STOP.trial,isStop,direction:dir,response:resp,correct,rt:rt?+rt.toFixed(1):null,ssd};
  (STOP.isPractice?STOP.practiceLog:STOP.log).push(entry);
  // staircase: make stop harder after success, easier after failure
  if(isStop){if(correct)STOP.ssd=Math.min(STOP.ssd+50,700);else STOP.ssd=Math.max(STOP.ssd-50,50);}
  const fb=$('stopFeedback');
  fb.textContent=isStop?(correct?'✓ Stopped':'✗ Failed to stop — too slow'):(resp==='TIMEOUT'?'T/O':(rt.toFixed(0)+' ms '+(correct?'✓':'✗')));
  fb.className='feedback '+(correct?'ok':'err');
  $('stopRespRow').style.display='none';$('stopSignalIndicator').textContent='';
  updateSidebar();stopT(stopNext,450);
}
document.addEventListener('keydown',e=>{
  if(!STOP.active||!STOP.waiting)return;
  if(e.key==='f'||e.key==='F'){e.preventDefault();stopRespond('L');}
  if(e.key==='j'||e.key==='J'){e.preventDefault();stopRespond('R');}
});
function stopEnd(){
  STOP.active=false;$('stopStimPhase').style.display='none';$('stopProgressBar').style.width='100%';
  const log=STOP.isPractice?STOP.practiceLog:STOP.log;
  if(STOP.isPractice){
    const c=log.filter(r=>r.correct).length;hideAll();
    $('pcStats').innerHTML='TRIALS &nbsp;<span>'+log.length+'</span> &nbsp;&nbsp; ACC &nbsp;<span>'+(log.length?(c/log.length*100).toFixed(0):0)+'%</span>';
    $('practiceComplete').style.display='flex';speak('Practice complete.');return;
  }
  $('exportBtn').disabled=false;
  const goTrials=log.filter(r=>!r.isStop&&r.rt);const stopTrials=log.filter(r=>r.isStop);
  const meanGoRT=goTrials.length?(goTrials.reduce((a,b)=>a+b.rt,0)/goTrials.length):null;
  const stopAcc=stopTrials.length?(stopTrials.filter(r=>r.correct).length/stopTrials.length*100).toFixed(0)+'%':'--';
  const finalSSD=STOP.ssd;
  const ssrt=meanGoRT?Math.round(meanGoRT-finalSSD)+' ms':'--';
  const acc=log.length?(log.filter(r=>r.correct).length/log.length*100).toFixed(0)+'%':'--';
  $('stopMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+(meanGoRT?meanGoRT.toFixed(0)+'ms':'--')+'</div><div class="vm-lbl">Mean Go RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+ssrt+'</div><div class="vm-lbl">SSRT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+finalSSD+'ms</div><div class="vm-lbl">Final SSD</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+stopAcc+'</div><div class="vm-lbl">Stop Accuracy</div></div>';
  $('stopResultsPhase').style.display='block';speak('Stop signal task complete. S S R T: '+ssrt+'.');updateSidebar();
}
function stopExportCSV(){
  if(!STOP.log.length)return;
  const h='trial,is_stop,direction,response,correct,rt_ms,ssd_ms\n';
  const rows=STOP.log.map(r=>[r.trial,r.isStop?1:0,r.direction,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):'',r.ssd].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});const a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='stop_'+Date.now()+'.csv';a.click();
}

// ═══════════════════════════════════════════════════════════
// MMN ENGINE  (passive auditory oddball)
// ═══════════════════════════════════════════════════════════
const MMN={active:false,isPractice:false,trial:0,maxTrials:0,log:[],audioCtx:null,_timers:[],startTime:0};
function mmnT(fn,ms){const t=setTimeout(fn,ms);MMN._timers.push(t);return t;}
function mmnClear(){MMN._timers.forEach(t=>clearTimeout(t));MMN._timers=[];}
function mmnTone(freq,dur=0.08,vol=0.25,kind){
  // R12: custom audio override (kind is 'standard' or 'deviant')
  if (kind && typeof CustomAudio !== 'undefined' &&
      CustomAudio.tryPlay('mmn-' + kind, vol)) {
    return;
  }
  try{
    if(!MMN.audioCtx||MMN.audioCtx.state==='closed') MMN.audioCtx=new AudioContext();
    const ac=MMN.audioCtx;const o=ac.createOscillator();const g=ac.createGain();
    o.connect(g);g.connect(ac.destination);o.frequency.value=freq;
    g.gain.setValueAtTime(vol,ac.currentTime);
    g.gain.exponentialRampToValueAtTime(0.001,ac.currentTime+dur);
    o.start();o.stop(ac.currentTime+dur+0.01);
  }catch(e){}
}
function startMMN(isPractice){
  MMN.active=true;MMN.isPractice=isPractice;
  MMN.maxTrials = taskTrials('MMN',5,60,isPractice);
  MMN.trial=0;
  MMN.log=[];
  mmnClear();hideAll();
  $('mmnScreen').style.display='flex';
  $('mmnPracticeBanner').style.display=isPractice?'block':'none';
  $('mmnStimPhase').style.display='flex';$('mmnResultsPhase').style.display='none';
  $('exportBtn').disabled=true;
  MMN.startTime=performance.now();
  Trigger.send(10,'MMN_block_start',{task:'MMN',practice:isPractice,n_trials:MMN.maxTrials,std_freq:1000,dev_freq:1200,p_deviant:0.20});
  speak(isPractice?'Practice M M N task. Sit quietly and listen.':'Starting M M N task. No response needed — just listen.');
  mmnNext();
}
function mmnNext(){
  if(MMN.trial>=MMN.maxTrials){mmnEnd();return;}
  MMN.trial++;
  $('mmn-trial').textContent='Trial '+MMN.trial+'/'+MMN.maxTrials;
  $('mmnProgressBar').style.width=((MMN.trial-1)/MMN.maxTrials*100).toFixed(1)+'%';
  const isDeviant=Math.random()<0.20;
  const freq=isDeviant?1200:1000;
  const type=isDeviant?'deviant':'standard';
  const onset=performance.now()-MMN.startTime;
  MMN.log.push({trial:MMN.trial,type,freq,onset});
  const ind=$('mmnToneIndicator'),fl=$('mmnFreqLabel');
  ind.style.borderColor=isDeviant?'#d4a520':'#1a2f44';
  ind.style.background=isDeviant?'rgba(212,165,32,0.12)':'transparent';
  ind.style.color=isDeviant?'#d4a520':'var(--dim)';
  ind.textContent=isDeviant?'DEVIANT':'STANDARD';
  fl.textContent=freq+' Hz';fl.style.color=isDeviant?'#d4a520':'var(--dim)';
  $('mmn-phase').textContent=isDeviant?'DEVIANT':'STANDARD';
  mmnTone(freq, undefined, undefined, isDeviant?'deviant':'standard');
  triggerFlash();   // photic marker at tone onset (was missing for MMN)
  // Trigger: stim onset — 41 = deviant (class A), 42 = standard (class B)
  Trigger.send(isDeviant?41:42, isDeviant?'MMN_deviant':'MMN_standard', {task:'MMN',trial:MMN.trial,freq:freq});
  mmnT(()=>{ind.style.borderColor='#1a2f44';ind.style.background='transparent';ind.style.color='var(--dim)';ind.textContent=tr('WAIT');fl.textContent='—';},120);
  mmnT(mmnNext,600);
}
function mmnEnd(){
  MMN.active=false;$('mmnProgressBar').style.width='100%';
  Trigger.send(11,'MMN_block_end',{task:'MMN'});
  if(MMN.audioCtx){try{MMN.audioCtx.close();}catch(e){}}
  const deviants=MMN.log.filter(r=>r.type==='deviant').length;
  const standards=MMN.log.filter(r=>r.type==='standard').length;
  const pct=(deviants/(deviants+standards)*100).toFixed(1);
  $('mmnMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+MMN.log.length+'</div><div class="vm-lbl">Total Tones</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+standards+'</div><div class="vm-lbl">Standard (1000 Hz)</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+deviants+'</div><div class="vm-lbl">Deviant (1200 Hz)</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+pct+'%</div><div class="vm-lbl">Deviant Rate</div></div>';
  $('mmnStimPhase').style.display='none';$('mmnResultsPhase').style.display='block';
  $('exportBtn').disabled=false;speak('M M N task complete.');updateSidebar();
}
function mmnExportCSV(){
  if(!MMN.log.length)return;
  const h='trial,type,freq_hz,onset_ms\n';
  const rows=MMN.log.map(r=>[r.trial,r.type,r.freq,r.onset.toFixed(0)].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});const a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='mmn_'+Date.now()+'.csv';a.click();
}

// ═══════════════════════════════════════════════════════════
// P600 SYNTACTIC ENGINE
// ═══════════════════════════════════════════════════════════
const P600={active:false,isPractice:false,trial:0,maxTrials:0,log:[],practiceLog:[],waiting:false,stimOn:0,_timers:[],currentPair:null,_deck:[]};
const P600_PAIRS=[
  // grammatically correct
  {prime:'The boy who kicked the ball',target:'RAN',       condition:'correct'},
  {prime:'She carefully placed the vase on the',          target:'SHELF',    condition:'correct'},
  {prime:'The students who passed the exam',              target:'CELEBRATED',condition:'correct'},
  {prime:'He had been waiting for over',                  target:'AN HOUR',  condition:'correct'},
  {prime:'The reports that the lawyer filed',             target:'DISAPPEARED',condition:'correct'},
  {prime:'The keys to the cabinet',                       target:'WERE LOST', condition:'correct'},
  {prime:'The manager who hired the interns',             target:'RESIGNED', condition:'correct'},
  {prime:'Her dress that she wore to the party',          target:'SPARKLED', condition:'correct'},
  // syntactic violations — agreement, number, or category error
  {prime:'The boy who kicked the ball',                   target:'WERE RAN',  condition:'violation'},
  {prime:'She carefully placed the vase on the',          target:'SLOWLY',    condition:'violation'},
  {prime:'The students who passed the exam',              target:'CELEBRATES',condition:'violation'},
  {prime:'He had been waiting for over',                  target:'DURING',    condition:'violation'},
  {prime:'The reports that the lawyer filed',             target:'HAS DISAPPEARED',condition:'violation'},
  {prime:'The keys to the cabinet',                       target:'WAS LOST',  condition:'violation'},
  {prime:'The manager who hired the interns',             target:'RESIGN DID',condition:'violation'},
  {prime:'Her dress that she wore to the party',          target:'SPARKLES BRIGHT',condition:'violation'},
];
function p600T(fn,ms){const t=setTimeout(fn,ms);P600._timers.push(t);return t;}
function p600Clear(){P600._timers.forEach(t=>clearTimeout(t));P600._timers=[];}
function p600BuildDeck(n){
  const correct=P600_PAIRS.filter(p=>p.condition==='correct');
  const viol=P600_PAIRS.filter(p=>p.condition==='violation');
  const nV=Math.round(n*0.30),nC=n-nV;
  function sample(arr,k){const out=[],pool=[...arr];while(out.length<k){if(!pool.length)pool.push(...arr);out.push(pool.splice(Math.floor(Math.random()*pool.length),1)[0]);}return out;}
  const deck=[...sample(correct,nC),...sample(viol,nV)];
  for(let i=deck.length-1;i>0;i--){const j=Math.floor(Math.random()*(i+1));[deck[i],deck[j]]=[deck[j],deck[i]];}
  return deck;
}
function startP600(isPractice){
  P600.active=true;P600.isPractice=isPractice;
  P600.maxTrials = taskTrials('P600',8,30,isPractice);
  P600.trial=0;
  if(!isPractice){P600.log=[];}else{P600.practiceLog=[];}
  p600Clear();hideAll();
  $('p600Screen').style.display='flex';
  $('p600PracticeBanner').style.display=isPractice?'block':'none';
  $('p600StimPhase').style.display='none';$('p600ResultsPhase').style.display='none';
  $('exportBtn').disabled=true;
  P600._deck=p600BuildDeck(P600.maxTrials);
  Trigger.send(10,'P600_block_start',{task:'P600',practice:isPractice,n_trials:P600.maxTrials,classes:{41:'correct_syntax',42:'syntax_violation'}});
  speak(isPractice?'Practice P 600 task.':'Starting P 600 task.');
  p600Next();
}
function p600SetWord(txt,style){const w=$('p600Word');w.style.cssText='min-height:80px;max-width:540px;display:flex;align-items:center;justify-content:center;text-align:center;padding:0 24px;'+style;w.textContent=txt;}
function p600Next(){
  if(P600.trial>=P600.maxTrials){p600End();return;}
  P600.trial++;
  $('p600-trial').textContent='Trial '+P600.trial+'/'+P600.maxTrials;
  $('p600ProgressBar').style.width=((P600.trial-1)/P600.maxTrials*100).toFixed(1)+'%';
  P600.currentPair=P600._deck[P600.trial-1];
  P600.waiting=false;$('p600Feedback').textContent='';$('p600Feedback').className='feedback';
  $('p600RespRow').style.display='none';
  $('p600Screen').querySelector('.stb-header').style.visibility='hidden';
  $('p600ProgressBar').parentElement.style.visibility='hidden';
  $('p600StimPhase').style.display='flex';
  const words=P600.currentPair.prime.trim().split(/\s+/);
  let delay=500;
  p600T(()=>{$('p600PhaseLabel').textContent='';p600SetWord('+','font-size:2rem;color:var(--mid);');},0);
  words.forEach(word=>{
    p600T(()=>{$('p600PhaseLabel').textContent='';p600SetWord(word,'font-size:2.2rem;font-weight:500;color:#d4a520;font-family:"EB Garamond",serif;');},delay);
    delay+=1000;
    p600T(()=>{p600SetWord('+','font-size:2rem;color:var(--mid);');},delay);
    delay+=500;
  });
  p600T(()=>{
    $('p600Screen').querySelector('.stb-header').style.visibility='';
    $('p600ProgressBar').parentElement.style.visibility='';
    $('p600PhaseLabel').textContent='CORRECT OR VIOLATION?';
    $('p600KeyHint').textContent='F = CORRECT  ·  J = VIOLATION';
    p600SetWord(P600.currentPair.target,'font-size:2.4rem;font-weight:700;letter-spacing:0.06em;color:#e8e0d0;font-family:"Source Code Pro",monospace;');
    $('p600RespRow').style.display='flex';
    P600.stimOn=performance.now();P600.waiting=true;
    triggerFlash();   // photic marker at target onset (was missing for P600)
    // Trigger: target onset — 41 correct syntax, 42 violation
    Trigger.send(P600.currentPair.condition==='correct'?41:42, 'P600_'+P600.currentPair.condition, {task:'P600',trial:P600.trial,prime:P600.currentPair.prime,target:P600.currentPair.target,condition:P600.currentPair.condition});
    p600T(()=>{if(P600.waiting)p600Respond('TIMEOUT');},2500);
  },delay);
}
function p600Respond(resp){
  if(!P600.waiting)return;P600.waiting=false;p600Clear();
  const p=P600.currentPair;
  const rt=resp==='TIMEOUT'?null:(performance.now()-P600.stimOn);
  const correct=resp==='TIMEOUT'?false:(resp==='OK'&&p.condition==='correct')||(resp==='ERR'&&p.condition==='violation');
  Trigger.send(resp==='TIMEOUT'?52:(correct?50:51), 'P600_'+(resp==='TIMEOUT'?'timeout':(correct?'correct':'incorrect')), {task:'P600',trial:P600.trial,rt:rt?+rt.toFixed(1):null,resp:resp});
  const entry={trial:P600.trial,prime:p.prime,target:p.target,condition:p.condition,response:resp,correct,rt:rt?+rt.toFixed(1):null};
  (P600.isPractice?P600.practiceLog:P600.log).push(entry);
  const fb=$('p600Feedback');
  fb.textContent=resp==='TIMEOUT'?'T/O':(rt.toFixed(0)+' ms '+(correct?'✓':'✗'));
  fb.className='feedback '+(resp==='TIMEOUT'?'timeout':correct?'ok':'err');
  $('p600RespRow').style.display='none';updateSidebar();p600T(p600Next,400);
}
document.addEventListener('keydown',e=>{
  if(!P600.active||!P600.waiting)return;
  if(e.key==='f'||e.key==='F'){e.preventDefault();p600Respond('OK');}
  if(e.key==='j'||e.key==='J'){e.preventDefault();p600Respond('ERR');}
});
function p600End(){
  P600.active=false;$('p600StimPhase').style.display='none';$('p600ProgressBar').style.width='100%';
  Trigger.send(11,'P600_block_end',{task:'P600'});
  const log=P600.isPractice?P600.practiceLog:P600.log;
  if(P600.isPractice){
    const c=log.filter(r=>r.correct).length;hideAll();
    $('pcStats').innerHTML='TRIALS &nbsp;<span>'+log.length+'</span> &nbsp;&nbsp; ACC &nbsp;<span>'+(log.length?(c/log.length*100).toFixed(0):0)+'%</span>';
    $('practiceComplete').style.display='flex';speak('Practice complete.');return;
  }
  $('exportBtn').disabled=false;
  const mean=arr=>arr.length?(arr.reduce((a,b)=>a+b.rt,0)/arr.length):null;
  const corr=log.filter(r=>r.condition==='correct'&&r.correct&&r.rt);
  const viol=log.filter(r=>r.condition==='violation'&&r.correct&&r.rt);
  const cRT=mean(corr),vRT=mean(viol);
  const p600eff=cRT&&vRT?(vRT-cRT).toFixed(0)+' ms':'--';
  $('p600Metrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+(cRT?cRT.toFixed(0)+'ms':'--')+'</div><div class="vm-lbl">Correct RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(vRT?vRT.toFixed(0)+'ms':'--')+'</div><div class="vm-lbl">Violation RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+p600eff+'</div><div class="vm-lbl">P600 Effect</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+log.filter(r=>r.correct).length+'/'+log.length+'</div><div class="vm-lbl">Correct</div></div>';
  const cv=$('p600Chart');if(cv){
    const c2=cv.getContext('2d');cv.width=cv.offsetWidth||460;cv.height=140;c2.fillStyle='#060d14';c2.fillRect(0,0,cv.width,cv.height);
    const bars=[{l:'Correct',v:cRT,col:'#81c784'},{l:'Violation',v:vRT,col:'#e57373'}];
    const maxV=Math.max(...bars.map(b=>b.v||0))*1.15||800;const bw=100,gap=40,sx=(cv.width-bars.length*(bw+gap)+gap)/2;
    bars.forEach((b,i)=>{const x=sx+i*(bw+gap),h=b.v?(b.v/maxV)*100:0,y=120-h;c2.fillStyle=b.col+'44';c2.fillRect(x,y,bw,h);c2.strokeStyle=b.col;c2.lineWidth=1.5;c2.strokeRect(x,y,bw,h);c2.fillStyle=b.col;c2.font='9px "Source Code Pro",monospace';c2.textAlign='center';c2.fillText(b.l,x+bw/2,135);if(b.v){c2.fillStyle='#e8e0d0';c2.fillText(b.v.toFixed(0)+'ms',x+bw/2,y-4);} });
  }
  $('p600ResultsPhase').style.display='block';speak('P 600 task complete. P 600 effect: '+p600eff+'.');updateSidebar();
}
function p600ExportCSV(){
  if(!P600.log.length)return;
  const h='trial,prime,target,condition,response,correct,rt_ms\n';
  const rows=P600.log.map(r=>[r.trial,r.prime,r.target,r.condition,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):''].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});const a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='p600_'+Date.now()+'.csv';a.click();
}

// ═══════════════════════════════════════════════════════════
// ERN ENGINE  (speeded Flanker — error monitoring)
// ═══════════════════════════════════════════════════════════
const ERN={active:false,isPractice:false,trial:0,maxTrials:0,log:[],practiceLog:[],waiting:false,stimOn:0,_timers:[],currentDir:null,deadline:500};
function ernT(fn,ms){const t=setTimeout(fn,ms);ERN._timers.push(t);return t;}
function ernClear(){ERN._timers.forEach(t=>clearTimeout(t));ERN._timers=[];}
function startERN(isPractice){
  ERN.active=true;ERN.isPractice=isPractice;
  ERN.maxTrials = taskTrials('ERN',10,60,isPractice);
  ERN.trial=0;
  if(!isPractice){ERN.log=[];}else{ERN.practiceLog=[];}
  ernClear();hideAll();
  $('ernScreen').style.display='flex';
  $('ernPracticeBanner').style.display=isPractice?'block':'none';
  $('ernStimPhase').style.display='none';$('ernResultsPhase').style.display='none';
  $('exportBtn').disabled=true;
  Trigger.send(10,'ERN_block_start',{task:'ERN',practice:isPractice,n_trials:ERN.maxTrials,deadline_ms:ERN.deadline,classes:{41:'left_arrow',42:'right_arrow'}});
  speak(isPractice?'Practice E R N task. Respond as fast as possible.':'Starting E R N task. Speed is critical.');
  ernNext();
}
function ernNext(){
  if(ERN.trial>=ERN.maxTrials){ernEnd();return;}
  ERN.trial++;
  $('ern-trial').textContent='Trial '+ERN.trial+'/'+ERN.maxTrials;
  $('ernProgressBar').style.width=((ERN.trial-1)/ERN.maxTrials*100).toFixed(1)+'%';
  ERN.waiting=false;$('ernFeedback').textContent='';$('ernFeedback').className='feedback';
  $('ernRespRow').style.display='none';$('ernTimer').textContent='';
  const dir=Math.random()<0.5?'L':'R';ERN.currentDir=dir;
  $('ernStimPhase').style.display='flex';
  $('ern-phase').textContent=tr('FIXATION');
  $('ernStim').textContent='+';$('ernStim').style.color='var(--mid)';
  ernT(()=>{
    $('ern-phase').textContent='RESPOND!';
    cognosSetArrow('ernStim', dir==='L'?'left':'right', {color:'#e8e0d0',w:110,h:55,strokeWidth:6});
    $('ernRespRow').style.display='flex';
    $('ernTimer').textContent='< '+ERN.deadline+' ms';
    ERN.stimOn=performance.now();ERN.waiting=true;
    // Trigger: stim onset — 41 left arrow (class A), 42 right (class B)
    Trigger.send(dir==='L'?41:42, 'ERN_'+(dir==='L'?'left':'right'), {task:'ERN',trial:ERN.trial,direction:dir});
    ernT(()=>{if(ERN.waiting)ernRespond('TIMEOUT');},ERN.deadline);
  },400);
}
function ernRespond(resp){
  if(!ERN.waiting)return;ERN.waiting=false;ernClear();
  const rt=resp==='TIMEOUT'?null:(performance.now()-ERN.stimOn);
  const correct=resp==='TIMEOUT'?false:resp===ERN.currentDir;
  // Trigger: response. ERN-specific: 51 (error) is the KEY trigger for ERN epoching.
  Trigger.send(resp==='TIMEOUT'?52:(correct?50:51), 'ERN_'+(resp==='TIMEOUT'?'timeout':(correct?'correct':'error')), {task:'ERN',trial:ERN.trial,rt:rt?+rt.toFixed(1):null,resp:resp});
  const entry={trial:ERN.trial,direction:ERN.currentDir,response:resp,correct,rt:rt?+rt.toFixed(1):null};
  (ERN.isPractice?ERN.practiceLog:ERN.log).push(entry);
  const fb=$('ernFeedback');
  if(resp==='TIMEOUT'){fb.textContent=tr('TOO SLOW');fb.className='feedback timeout';}
  else if(correct){fb.textContent=rt.toFixed(0)+' ms ✓';fb.className='feedback ok';}
  else{fb.textContent=rt.toFixed(0)+' ms ✗ ERROR';fb.className='feedback err';}
  $('ernRespRow').style.display='none';$('ernTimer').textContent='';
  updateSidebar();ernT(ernNext,450);
}
document.addEventListener('keydown',e=>{
  if(!ERN.active||!ERN.waiting)return;
  if(e.key==='f'||e.key==='F'){e.preventDefault();ernRespond('L');}
  if(e.key==='j'||e.key==='J'){e.preventDefault();ernRespond('R');}
});
function ernEnd(){
  ERN.active=false;$('ernStimPhase').style.display='none';$('ernProgressBar').style.width='100%';
  Trigger.send(11,'ERN_block_end',{task:'ERN'});
  const log=ERN.isPractice?ERN.practiceLog:ERN.log;
  if(ERN.isPractice){
    const c=log.filter(r=>r.correct).length;hideAll();
    $('pcStats').innerHTML='TRIALS &nbsp;<span>'+log.length+'</span> &nbsp;&nbsp; ACC &nbsp;<span>'+(log.length?(c/log.length*100).toFixed(0):0)+'%</span>';
    $('practiceComplete').style.display='flex';speak('Practice complete.');return;
  }
  $('exportBtn').disabled=false;
  const errors=log.filter(r=>!r.correct&&r.rt);
  const correct=log.filter(r=>r.correct&&r.rt);
  const meanCorrectRT=correct.length?(correct.reduce((a,b)=>a+b.rt,0)/correct.length).toFixed(0):'--';
  const meanErrorRT=errors.length?(errors.reduce((a,b)=>a+b.rt,0)/errors.length).toFixed(0):'--';
  const errRate=(errors.length/log.filter(r=>r.rt).length*100).toFixed(1)+'%';
  $('ernMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+meanCorrectRT+'ms</div><div class="vm-lbl">Correct RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+meanErrorRT+'ms</div><div class="vm-lbl">Error RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+errors.length+'</div><div class="vm-lbl">Errors (ERN trials)</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+errRate+'</div><div class="vm-lbl">Error Rate</div></div>';
  $('ernResultsPhase').style.display='block';speak('E R N task complete. '+errors.length+' errors recorded.');updateSidebar();
}
function ernExportCSV(){
  if(!ERN.log.length)return;
  const h='trial,direction,response,correct,rt_ms,is_error\n';
  const rows=ERN.log.map(r=>[r.trial,r.direction,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):'',r.correct?0:1].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});const a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='ern_'+Date.now()+'.csv';a.click();
}

// ══════════════════════════════════════════
// STROOP COLOR-WORD TASK
// Conditions: congruent · incongruent · neutral
// Response: F=red  G=green  H=blue  J=yellow
// ══════════════════════════════════════════
const STROOP_COLORS = [
  { name:'red',    hex:'#e05c5c' },
  { name:'green',  hex:'#4ec994' },
  { name:'blue',   hex:'#5b9fda' },
  { name:'yellow', hex:'#c8a84b' },
];
const STROOP_WORDS = ['RED','GREEN','BLUE','YELLOW'];

const STROOP = {
  active:false, isPractice:false, trial:0, maxTrials:0, waiting:false,
  stimOn:0, currentTrial:null, log:[], practiceLog:[], _timers:[],
  stimDur:3000, isiMin:500, isiMax:900,
};

function stroopT(fn,ms){ const t=setTimeout(fn,ms); STROOP._timers.push(t); return t; }
function stroopClear(){ STROOP._timers.forEach(t=>clearTimeout(t)); STROOP._timers=[]; }

function stroopBuildDeck(n) {
  // ~40% congruent, ~40% incongruent, ~20% neutral — balanced across colors
  const deck=[];
  const nCong   = Math.round(n*0.40);
  const nIncong = Math.round(n*0.40);
  const nNeutral= n - nCong - nIncong;
  // congruent: word === ink color
  for(let i=0;i<nCong;i++){
    const c=STROOP_COLORS[i%4];
    deck.push({word:c.name.toUpperCase(), ink:c.name, hex:c.hex, condition:'congruent'});
  }
  // incongruent: word !== ink color
  for(let i=0;i<nIncong;i++){
    const inkIdx=i%4;
    const wordIdx=(inkIdx+1+Math.floor(i/4))%4;
    const ink=STROOP_COLORS[inkIdx], wordColor=STROOP_COLORS[wordIdx];
    deck.push({word:wordColor.name.toUpperCase(), ink:ink.name, hex:ink.hex, condition:'incongruent'});
  }
  // neutral: "XXX" in a color
  for(let i=0;i<nNeutral;i++){
    const c=STROOP_COLORS[i%4];
    deck.push({word:'XXX', ink:c.name, hex:c.hex, condition:'neutral'});
  }
  // Fisher-Yates shuffle
  for(let i=deck.length-1;i>0;i--){
    const j=Math.floor(Math.random()*(i+1));
    [deck[i],deck[j]]=[deck[j],deck[i]];
  }
  return deck;
}

function startStroop(isPractice){
  STROOP.active=true; STROOP.isPractice=isPractice;
  STROOP.maxTrials = taskTrials('STROOP',8,40,isPractice);
  STROOP.trial=0; STROOP.waiting=false;
  if(!isPractice){STROOP.log=[];}else{STROOP.practiceLog=[];}
  STROOP._deck=stroopBuildDeck(STROOP.maxTrials);
  stroopClear(); hideAll();
  $('stroopScreen').style.display='flex';
  $('stroopPracticeBanner').style.display=isPractice?'block':'none';
  $('stroopStimPhase').style.display='none';
  $('stroopResultsPhase').style.display='none';
  $('exportBtn').disabled=true;
  $('si-task').textContent='STROOP'+(isPractice?' (PRAC)':'');
  speak(isPractice?'Practice Stroop task.':'Starting Stroop task.');
  stroopNext();
}

function stroopNext(){
  if(STROOP.trial>=STROOP.maxTrials){ stroopEnd(); return; }
  STROOP.trial++;
  $('stroop-trial').textContent='Trial '+STROOP.trial+'/'+STROOP.maxTrials;
  $('stroop-phase').textContent='';
  $('stroopProgressBar').style.width=((STROOP.trial-1)/STROOP.maxTrials*100).toFixed(1)+'%';
  STROOP.waiting=false;
  $('stroopFeedback').textContent=''; $('stroopFeedback').className='feedback';
  $('stroopColorBtns').style.display='none';
  $('stroopTimer').textContent='';

  const trial = STROOP._deck[STROOP.trial-1];
  STROOP.currentTrial = trial;

  // Show fixation
  const fix=$('stroopFixation'); const word=$('stroopWord');
  fix.style.display='flex'; word.style.display='none';
  $('stroopStimPhase').style.display='flex';

  const isi = STROOP.isiMin + Math.random()*(STROOP.isiMax-STROOP.isiMin);
  stroopT(()=>{
    fix.style.display='none';
    word.textContent=trial.word;
    word.style.color=trial.hex;
    word.style.display='block';
    $('stroopColorBtns').style.display='flex';
    $('stroopTimer').textContent='< '+STROOP.stimDur+' ms';
    $('stroop-phase').textContent=trial.condition.toUpperCase();
    STROOP.stimOn=performance.now(); STROOP.waiting=true;
    triggerFlash();
    stroopT(()=>{ if(STROOP.waiting) stroopRespond('TIMEOUT'); }, STROOP.stimDur);
  }, isi);
}

function stroopRespond(resp){
  if(!STROOP.waiting) return;
  STROOP.waiting=false; stroopClear();
  const trial=STROOP.currentTrial;
  const rt=resp==='TIMEOUT'?null:(performance.now()-STROOP.stimOn);
  const correct=resp==='TIMEOUT'?false:resp===trial.ink;
  const entry={
    trial:STROOP.trial, word:trial.word, ink:trial.ink,
    condition:trial.condition, response:resp, correct, rt:rt?+rt.toFixed(1):null
  };
  (STROOP.isPractice?STROOP.practiceLog:STROOP.log).push(entry);
  const fb=$('stroopFeedback');
  if(resp==='TIMEOUT'){ fb.textContent=tr('T/O'); fb.className='feedback timeout'; }
  else { fb.textContent=rt.toFixed(0)+' ms '+(correct?'✓':'✗'); fb.className='feedback '+(correct?'ok':'err'); }
  $('stroopColorBtns').style.display='none';
  $('stroopTimer').textContent='';
  updateSidebar();
  stroopT(stroopNext, 380);
}

document.addEventListener('keydown', e=>{
  if(!STROOP.active||!STROOP.waiting) return;
  if(e.key==='f'||e.key==='F'){ e.preventDefault(); stroopRespond('red'); }
  if(e.key==='g'||e.key==='G'){ e.preventDefault(); stroopRespond('green'); }
  if(e.key==='h'||e.key==='H'){ e.preventDefault(); stroopRespond('blue'); }
  if(e.key==='j'||e.key==='J'){ e.preventDefault(); stroopRespond('yellow'); }
});

function stroopEnd(){
  STROOP.active=false;
  $('stroopStimPhase').style.display='none';
  $('stroopProgressBar').style.width='100%';
  const log=STROOP.isPractice?STROOP.practiceLog:STROOP.log;
  if(STROOP.isPractice){
    const c=log.filter(r=>r.correct).length;
    const rts=log.filter(r=>r.rt!=null);
    const avgRT=rts.length?(rts.reduce((a,b)=>a+b.rt,0)/rts.length).toFixed(0):'--';
    hideAll();
    $('pcStats').innerHTML='TRIALS &nbsp;<span>'+log.length+'</span> &nbsp;&nbsp; ACC &nbsp;<span>'+(log.length?(c/log.length*100).toFixed(0):0)+'%</span> &nbsp;&nbsp; AVG RT &nbsp;<span>'+avgRT+' ms</span>';
    $('practiceComplete').style.display='flex'; speak('Practice complete.'); return;
  }
  $('exportBtn').disabled=false;

  const cong   = log.filter(r=>r.condition==='congruent');
  const incong  = log.filter(r=>r.condition==='incongruent');
  const neutral = log.filter(r=>r.condition==='neutral');
  const meanRT = arr => arr.filter(r=>r.rt!=null).length
    ? (arr.filter(r=>r.rt!=null).reduce((a,b)=>a+b.rt,0)/arr.filter(r=>r.rt!=null).length).toFixed(0)
    : '--';
  const acc = arr => arr.length ? (arr.filter(r=>r.correct).length/arr.length*100).toFixed(0)+'%' : '--';

  const congRT   = parseFloat(meanRT(cong));
  const incongRT = parseFloat(meanRT(incong));
  const interference = (!isNaN(congRT)&&!isNaN(incongRT))?(incongRT-congRT).toFixed(0):'--';
  const allAcc = log.length?(log.filter(r=>r.correct).length/log.length*100).toFixed(0)+'%':'--';
  const allRTs = log.filter(r=>r.rt!=null).map(r=>r.rt);
  const avgAll = allRTs.length?(allRTs.reduce((a,b)=>a+b,0)/allRTs.length).toFixed(0):'--';

  $('stroopMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+interference+(interference!=='--'?' ms':'')+'</div><div class="vm-lbl">Interference (Inc−Cong)</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+meanRT(cong)+' ms</div><div class="vm-lbl">Congruent RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+meanRT(incong)+' ms</div><div class="vm-lbl">Incongruent RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+meanRT(neutral)+' ms</div><div class="vm-lbl">Neutral RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+allAcc+'</div><div class="vm-lbl">Overall Accuracy</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+acc(cong)+'</div><div class="vm-lbl">Congruent Acc</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+acc(incong)+'</div><div class="vm-lbl">Incongruent Acc</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+avgAll+' ms</div><div class="vm-lbl">Overall Avg RT</div></div>';

  $('stroopResultsPhase').style.display='block';
  speak('Stroop task complete. Interference score: '+interference+' milliseconds.');
  updateSidebar();
}

function stroopExportCSV(){
  if(!STROOP.log.length) return;
  const h='trial,word,ink_color,condition,response,correct,rt_ms\n';
  const rows=STROOP.log.map(r=>[r.trial,r.word,r.ink,r.condition,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):''].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});
  const a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='stroop_'+Date.now()+'.csv';a.click();
}


// ══════════════════════════════════════════
// DIGIT SPAN TASK (DST)
// Forward and Backward subtests
// WAIS-IV staircase: 2 trials per span length,
// advance on correct, 2 strikes = subtest ends
// ══════════════════════════════════════════
const DST = {
  active:false, isPractice:false,
  subtest:'forward',   // 'forward' | 'backward'
  spanLen:3,           // current sequence length
  trialAtLen:0,        // how many trials attempted at this length
  strikes:0,           // failures at current length
  fwdSpan:0,           // highest forward span achieved
  bwdSpan:0,           // highest backward span achieved
  currentSeq:[],       // the presented sequence
  entered:[],          // digits entered so far
  phase:null,          // 'present' | 'recall'
  log:[], practiceLog:[],
  _timers:[],
  digitRate:1000,      // ms per digit
  maxSpan:9,
  _trialIdx:0,         // within-session trial counter for log
};

function dstT(fn,ms){ const t=setTimeout(fn,ms); DST._timers.push(t); return t; }
function dstClear(){ DST._timers.forEach(t=>clearTimeout(t)); DST._timers=[]; }

function dstRandSeq(len){
  // No consecutive repeats, no 0-start
  const seq=[];
  while(seq.length<len){
    let d=Math.floor(Math.random()*10);
    if(seq.length===0 && d===0) continue;
    if(seq.length>0 && d===seq[seq.length-1]) continue;
    seq.push(d);
  }
  return seq;
}

function startDST(isPractice){
  DST.active=true; DST.isPractice=isPractice;
  Object.assign(DST,{subtest:'forward',spanLen:isPractice?2:3,trialAtLen:0,strikes:0,
    fwdSpan:0,bwdSpan:0,currentSeq:[],entered:[],phase:null,_trialIdx:0});
  if(isPractice){DST.practiceLog=[];}else{DST.log=[];}
  dstClear(); hideAll();
  $('dstScreen').style.display='flex';
  $('dstPracticeBanner').style.display=isPractice?'block':'none';
  $('dstStimPhase').style.display='none';
  $('dstResultsPhase').style.display='none';
  $('exportBtn').disabled=true;
  $('si-task').textContent='DST'+(isPractice?' (PRAC)':'');
  $('dstProgressBar').style.width='0%';
  speak(isPractice?'Practice digit span.':'Starting digit span. Forward span first.');
  dstT(dstNextTrial, 600);
}

function dstNextTrial(){
  // Check termination
  if(DST.spanLen > DST.maxSpan){ dstNextSubtest(); return; }

  DST.phase='present';
  DST._trialIdx++;
  DST.trialAtLen++;
  DST.currentSeq = dstRandSeq(DST.spanLen);
  DST.entered=[];

  const isFwd = DST.subtest==='forward';
  $('dstSubtestLabel').textContent = isFwd ? 'FORWARD SPAN' : 'BACKWARD SPAN';
  $('dstInstruct').textContent = 'Watch the digits…';
  $('dstRecallWrap').style.display='none';
  $('dstFeedback').textContent=''; $('dstFeedback').className='feedback';
  $('dstBigDigit').textContent='';
  $('dst-trial').textContent='Span '+DST.spanLen+(DST.isPractice?' (practice)':'');
  $('dst-phase').textContent=isFwd?'FWD':'BWD';
  $('dstStimPhase').style.display='flex';

  // Build dots
  dstUpdateDots([]);

  // Present digits one by one
  let i=0;
  const totalDur = DST.spanLen * DST.digitRate;
  function showNext(){
    if(i>=DST.currentSeq.length){ dstStartRecall(); return; }
    $('dstBigDigit').textContent=DST.currentSeq[i];
    dstUpdateDots(DST.currentSeq.slice(0,i+1).map(()=>'shown'));
    i++;
    dstT(showNext, DST.digitRate);
  }
  dstT(()=>{ $('dstBigDigit').textContent=''; showNext(); }, 400);

  // Progress bar: interpolate over sequence + recall
  const pctBase = (DST.subtest==='forward') ? 0 : 50;
  const pctRange= 50;
  const pctStart= pctBase + pctRange * ((DST.spanLen-3)/Math.max(DST.maxSpan-3,1));
  $('dstProgressBar').style.width=Math.min(100,pctStart).toFixed(0)+'%';
}

function dstStartRecall(){
  DST.phase='recall';
  $('dstBigDigit').textContent='';
  const isFwd = DST.subtest==='forward';
  $('dstInstruct').textContent = isFwd ? 'Type the sequence in order:' : 'Type the sequence BACKWARDS:';
  $('dstRecallInstruct').textContent = isFwd ? 'Enter digits in the same order:' : 'Enter digits in REVERSE order:';
  $('dstEnteredDigits').textContent='';
  dstUpdateDots([]);
  $('dstRecallWrap').style.display='flex';
  triggerFlash();
}

function dstUpdateDots(states){
  const el=$('dstDots'); el.innerHTML='';
  const len=DST.spanLen;
  for(let i=0;i<len;i++){
    const d=document.createElement('div');
    d.className='dst-seq-dot'+(states[i]?' '+states[i]:'');
    el.appendChild(d);
  }
}

function dstEntry(n){
  if(DST.phase!=='recall') return;
  if(DST.entered.length>=DST.spanLen) return;
  DST.entered.push(n);
  // update display
  const el=$('dstEnteredDigits');
  el.textContent=DST.entered.join(' ');
  dstUpdateDots(DST.entered.map(()=>'filled'));
}

function dstBackspace(){
  if(DST.phase!=='recall') return;
  DST.entered.pop();
  $('dstEnteredDigits').textContent=DST.entered.join(' ');
  dstUpdateDots(DST.entered.map(()=>'filled'));
}

function dstSubmit(){
  if(DST.phase!=='recall') return;
  if(DST.entered.length===0) return;
  DST.phase=null;

  const isFwd = DST.subtest==='forward';
  // Build target
  const target = isFwd ? [...DST.currentSeq] : [...DST.currentSeq].reverse();
  const correct = DST.entered.length===target.length && DST.entered.every((d,i)=>d===target[i]);

  // Log entry
  const entry={
    trial:DST._trialIdx, subtest:DST.subtest, spanLen:DST.spanLen,
    sequence:DST.currentSeq.join(''), target:target.join(''),
    response:DST.entered.join(''), correct,
  };
  (DST.isPractice?DST.practiceLog:DST.log).push(entry);

  // Dot feedback
  dstUpdateDots(DST.entered.map((d,i)=>d===target[i]?'ok':'err'));
  $('dstRecallWrap').style.display='none';

  const fb=$('dstFeedback');
  if(correct){
    fb.textContent='✓ Correct'; fb.className='feedback ok';
    if(DST.subtest==='forward') DST.fwdSpan=Math.max(DST.fwdSpan,DST.spanLen);
    else DST.bwdSpan=Math.max(DST.bwdSpan,DST.spanLen);
    DST.strikes=0;
    // Advance span after 1 correct (WAIS gives 2 trials; advance if either correct)
    if(DST.trialAtLen>=2){
      DST.spanLen++; DST.trialAtLen=0; DST.strikes=0;
    }
  } else {
    fb.textContent='✗ '+DST.entered.join('-')+' (target: '+target.join('-')+')';
    fb.className='feedback err';
    DST.strikes++;
    if(DST.strikes>=2){ dstT(()=>dstNextSubtest(),900); return; }
    if(DST.trialAtLen>=2){
      DST.spanLen++; DST.trialAtLen=0; DST.strikes=0;
    }
  }

  updateSidebar();
  dstT(dstNextTrial, 1000);
}

function dstNextSubtest(){
  if(DST.subtest==='forward'){
    if(DST.isPractice){ dstEnd(); return; }
    DST.subtest='backward';
    DST.spanLen=3; DST.trialAtLen=0; DST.strikes=0;
    $('dstFeedback').textContent='';
    speak('Now the backward span. Repeat digits in reverse order.');
    dstT(dstNextTrial, 1800);
  } else {
    dstEnd();
  }
}

document.addEventListener('keydown', e=>{
  if(!DST.active) return;
  if(DST.phase==='recall'){
    if(e.key>='0'&&e.key<='9'){ e.preventDefault(); dstEntry(parseInt(e.key)); return; }
    if(e.key==='Backspace'){ e.preventDefault(); dstBackspace(); return; }
    if(e.key==='Enter'){ e.preventDefault(); dstSubmit(); return; }
  }
});

function dstEnd(){
  DST.active=false;
  $('dstStimPhase').style.display='none';
  $('dstProgressBar').style.width='100%';
  const log=DST.isPractice?DST.practiceLog:DST.log;

  if(DST.isPractice){
    const c=log.filter(r=>r.correct).length;
    hideAll();
    $('pcStats').innerHTML='TRIALS &nbsp;<span>'+log.length+'</span> &nbsp;&nbsp; ACC &nbsp;<span>'+(log.length?(c/log.length*100).toFixed(0):0)+'%</span>';
    $('practiceComplete').style.display='flex'; speak('Practice complete.'); return;
  }

  $('exportBtn').disabled=false;
  const fwdTrials=log.filter(r=>r.subtest==='forward');
  const bwdTrials=log.filter(r=>r.subtest==='backward');
  const fwdAcc=fwdTrials.length?(fwdTrials.filter(r=>r.correct).length/fwdTrials.length*100).toFixed(0)+'%':'--';
  const bwdAcc=bwdTrials.length?(bwdTrials.filter(r=>r.correct).length/bwdTrials.length*100).toFixed(0)+'%':'--';
  const totalScore = DST.fwdSpan + DST.bwdSpan;

  $('dstMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+DST.fwdSpan+'</div><div class="vm-lbl">Forward Span</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+DST.bwdSpan+'</div><div class="vm-lbl">Backward Span</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+totalScore+'</div><div class="vm-lbl">Total Score (Fwd+Bwd)</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+fwdAcc+'</div><div class="vm-lbl">Forward Accuracy</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+bwdAcc+'</div><div class="vm-lbl">Backward Accuracy</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+log.length+'</div><div class="vm-lbl">Total Trials</div></div>';

  $('dstResultsPhase').style.display='block';
  speak('Digit span complete. Forward span: '+DST.fwdSpan+'. Backward span: '+DST.bwdSpan+'.');
  updateSidebar();
}

function dstExportCSV(){
  if(!DST.log.length) return;
  const h='trial,subtest,span_length,sequence,target,response,correct\n';
  const rows=DST.log.map(r=>[r.trial,r.subtest,r.spanLen,r.sequence,r.target,r.response,r.correct?1:0].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});
  const a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='digitspan_'+Date.now()+'.csv';a.click();
}


// ══════════════════════════════════════════
// CNV — CONTINGENT NEGATIVE VARIATION
// S1 (warning tone) → foreperiod → S2 (circle)
// SPACE response to S2; catch trials = no S2
// Photocell trigger on S1 and S2 onsets
// ══════════════════════════════════════════
const CNV = {
  active:false, isPractice:false,
  trial:0, maxTrials:0, waiting:false,
  stimOn:0, currentTrial:null,
  log:[], practiceLog:[], _timers:[],
  audioCtx:null,
  // configurable
  foreperiod:1500,   // S1→S2 ms
  catchProb:0.20,    // fraction catch trials
  s1Dur:100,         // warning tone duration ms
  s2Dur:1500,        // S2 window (response deadline) ms
  isi:1200,          // inter-trial interval ms
};

function cnvT(fn,ms){ const t=setTimeout(fn,ms); CNV._timers.push(t); return t; }
function cnvClear(){ CNV._timers.forEach(t=>clearTimeout(t)); CNV._timers=[]; }

function cnvTone(freq, dur, gain){
  try {
    if(!CNV.audioCtx) CNV.audioCtx=new AudioContext();
    const ctx=CNV.audioCtx;
    const osc=ctx.createOscillator();
    const env=ctx.createGain();
    osc.connect(env); env.connect(ctx.destination);
    osc.frequency.value=freq;
    env.gain.setValueAtTime(0,ctx.currentTime);
    env.gain.linearRampToValueAtTime(gain,ctx.currentTime+0.005);
    env.gain.setValueAtTime(gain,ctx.currentTime+dur/1000-0.01);
    env.gain.linearRampToValueAtTime(0,ctx.currentTime+dur/1000);
    osc.start(ctx.currentTime); osc.stop(ctx.currentTime+dur/1000);
  } catch(e){}
}

function startCNV(isPractice){
  CNV.active=true; CNV.isPractice=isPractice;
  CNV.maxTrials = taskTrials('CNV',8,30,isPractice);
  CNV.trial=0; CNV.waiting=false;
  if(!isPractice){CNV.log=[];}else{CNV.practiceLog=[];}
  cnvClear(); hideAll();
  $('cnvScreen').style.display='flex';
  $('cnvPracticeBanner').style.display=isPractice?'block':'none';
  $('cnvStimPhase').style.display='none';
  $('cnvResultsPhase').style.display='none';
  $('exportBtn').disabled=true;
  $('si-task').textContent='CNV'+(isPractice?' (PRAC)':'');
  $('cnvProgressBar').style.width='0%';
  Trigger.send(10,'CNV_block_start',{task:'CNV',practice:isPractice,n_trials:CNV.maxTrials,foreperiod_ms:CNV.foreperiod,catch_prob:CNV.catchProb,classes:{41:'S1_warning',42:'S2_go',43:'S2_catch'}});
  speak(isPractice?'Practice C N V task.':'Starting C N V task.');
  cnvT(cnvNext, 800);
}

function cnvNext(){
  if(CNV.trial>=CNV.maxTrials){ cnvEnd(); return; }
  CNV.trial++;
  $('cnv-trial').textContent='Trial '+CNV.trial+'/'+CNV.maxTrials;
  $('cnvProgressBar').style.width=((CNV.trial-1)/CNV.maxTrials*100).toFixed(1)+'%';
  CNV.waiting=false;
  $('cnvFeedback').textContent=''; $('cnvFeedback').className='feedback';
  $('cnv-phase').textContent='';
  $('cnvTrialType').textContent='';

  const isCatch = Math.random() < CNV.catchProb;
  CNV.currentTrial = { type: isCatch?'catch':'go', foreperiod: CNV.foreperiod };

  const circle = $('cnvCircle');
  const fpBar  = $('cnvFpBar');

  // Reset circle to fixation
  circle.textContent='+';
  circle.className='cnv-circle';
  fpBar.style.transition='none';
  fpBar.style.width='0%';
  $('cnvStimPhase').style.display='flex';

  // ── S1: warning tone ───────────────────
  cnvT(()=>{
    $('cnv-phase').textContent=tr('S1');
    circle.className='cnv-circle s1';
    circle.textContent='◦';
    cnvTone(800, CNV.s1Dur, 0.25);
    triggerFlash();
    // Trigger: S1 warning (41 = class A) — defines the start of the CNV epoch
    Trigger.send(41, 'CNV_S1', {task:'CNV',trial:CNV.trial,trial_type:isCatch?'catch':'go',foreperiod:CNV.foreperiod});

    // Start foreperiod progress bar
    requestAnimationFrame(()=>{
      fpBar.style.transition='width '+CNV.foreperiod+'ms linear';
      fpBar.style.width='100%';
    });

    // ── S2 or catch ─────────────────────
    cnvT(()=>{
      fpBar.style.transition='none';
      fpBar.style.width='100%';

      if(isCatch){
        // Catch: show nothing, watch for false alarms
        circle.className='cnv-circle catch';
        circle.textContent='+';
        $('cnv-phase').textContent=tr('CATCH');
        $('cnvTrialType').textContent='catch trial — withhold response';
        CNV.waiting=true; CNV.stimOn=performance.now();
        // Trigger: S2 catch (43 = class C)
        Trigger.send(43, 'CNV_S2_catch', {task:'CNV',trial:CNV.trial});
        cnvT(()=>{ if(CNV.waiting) cnvRespond('NONE'); }, CNV.s2Dur);
      } else {
        // Go: show S2 circle, open response window
        circle.className='cnv-circle s2';
        circle.textContent='●';
        $('cnv-phase').textContent=tr('S2');
        $('cnvTrialType').textContent='respond now!';
        cnvTone(1200, 60, 0.15); // brief high click on S2
        triggerFlash();
        CNV.stimOn=performance.now(); CNV.waiting=true;
        // Trigger: S2 go (42 = class B)
        Trigger.send(42, 'CNV_S2_go', {task:'CNV',trial:CNV.trial});
        cnvT(()=>{ if(CNV.waiting) cnvRespond('TIMEOUT'); }, CNV.s2Dur);
      }
    }, CNV.foreperiod);
  }, 600); // 600 ms pre-S1 fixation
}

function cnvRespond(resp){
  if(!CNV.waiting) return;
  CNV.waiting=false; cnvClear();
  const trial=CNV.currentTrial;
  const rt = (resp==='TIMEOUT'||resp==='NONE') ? null : (performance.now()-CNV.stimOn);
  let correct=false, fa=false;

  if(trial.type==='go'){
    correct = (resp==='GO');
    // early response (before S2) handled as false alarm in pre-S2 window, but here
    // we only open waiting during S2 so any key = valid go
  } else {
    // catch trial
    correct = (resp==='NONE'); // correct = no response
    fa = (resp==='GO');        // false alarm = pressed during catch
  }

  // Trigger: response. For go trials: 50/51/52. For catch: 50 (correct withhold) or 51 (false alarm).
  if(resp==='NONE'){
    Trigger.send(correct?50:51, 'CNV_'+(correct?'withhold_correct':'withhold_missing'), {task:'CNV',trial:CNV.trial,trial_type:trial.type});
  } else if(resp==='TIMEOUT'){
    Trigger.send(52, 'CNV_miss', {task:'CNV',trial:CNV.trial,trial_type:trial.type});
  } else {
    Trigger.send(fa?51:(correct?50:51), fa?'CNV_FA':(correct?'CNV_hit':'CNV_err'), {task:'CNV',trial:CNV.trial,trial_type:trial.type,rt:rt?+rt.toFixed(1):null});
  }

  const entry={
    trial:CNV.trial, type:trial.type, foreperiod:trial.foreperiod,
    response:resp, correct, rt:rt?+rt.toFixed(1):null, fa,
  };
  (CNV.isPractice?CNV.practiceLog:CNV.log).push(entry);

  const circle=$('cnvCircle');
  const fb=$('cnvFeedback');
  if(trial.type==='go'){
    if(resp==='GO'){
      fb.textContent=rt.toFixed(0)+' ms ✓'; fb.className='feedback ok';
      circle.className='cnv-circle'; circle.style.borderColor='var(--ok)';
    } else {
      fb.textContent=tr('MISS'); fb.className='feedback err';
      circle.className='cnv-circle'; circle.style.borderColor='var(--err)';
    }
  } else {
    if(fa){
      fb.textContent='✗ False alarm'; fb.className='feedback err';
    } else {
      fb.textContent='✓ Withheld'; fb.className='feedback ok';
    }
  }

  updateSidebar();
  // Reset circle border after feedback
  cnvT(()=>{ circle.style.borderColor=''; cnvNext(); }, CNV.isi||1200);
}

document.addEventListener('keydown', e=>{
  if(!CNV.active||!CNV.waiting) return;
  if(e.code==='Space'){ e.preventDefault(); cnvRespond('GO'); }
});

function cnvEnd(){
  CNV.active=false;
  $('cnvStimPhase').style.display='none';
  $('cnvProgressBar').style.width='100%';
  Trigger.send(11,'CNV_block_end',{task:'CNV'});
  const log=CNV.isPractice?CNV.practiceLog:CNV.log;

  if(CNV.isPractice){
    const c=log.filter(r=>r.correct).length;
    hideAll();
    $('pcStats').innerHTML='TRIALS &nbsp;<span>'+log.length+'</span> &nbsp;&nbsp; ACC &nbsp;<span>'+(log.length?(c/log.length*100).toFixed(0):0)+'%</span>';
    $('practiceComplete').style.display='flex'; speak('Practice complete.'); return;
  }

  $('exportBtn').disabled=false;
  const goLog    = log.filter(r=>r.type==='go');
  const catchLog = log.filter(r=>r.type==='catch');
  const hits     = goLog.filter(r=>r.correct);
  const fas      = catchLog.filter(r=>r.fa);
  const rts      = hits.filter(r=>r.rt!=null).map(r=>r.rt);
  const avgRT    = rts.length?(rts.reduce((a,b)=>a+b,0)/rts.length).toFixed(0):'--';
  const minRT    = rts.length?Math.min(...rts).toFixed(0):'--';
  const hitRate  = goLog.length?(hits.length/goLog.length*100).toFixed(0)+'%':'--';
  const faRate   = catchLog.length?(fas.length/catchLog.length*100).toFixed(0)+'%':'--';

  $('cnvMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+hitRate+'</div><div class="vm-lbl">Hit Rate</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+faRate+'</div><div class="vm-lbl">False Alarm Rate</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+avgRT+' ms</div><div class="vm-lbl">Mean RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+minRT+' ms</div><div class="vm-lbl">Best RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+hits.length+'/'+goLog.length+'</div><div class="vm-lbl">Hits / Go trials</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+fas.length+'/'+catchLog.length+'</div><div class="vm-lbl">FAs / Catch trials</div></div>';

  $('cnvResultsPhase').style.display='block';
  speak('C N V task complete. Hit rate '+hitRate+'. Mean R T '+avgRT+' milliseconds.');
  updateSidebar();
}

function cnvExportCSV(){
  if(!CNV.log.length) return;
  const h='trial,type,foreperiod_ms,response,correct,rt_ms,false_alarm\n';
  const rows=CNV.log.map(r=>[r.trial,r.type,r.foreperiod,r.response,r.correct?1:0,r.rt!=null?r.rt.toFixed(1):'',r.fa?1:0].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});
  const a=document.createElement('a'); a.href=URL.createObjectURL(blob);
  a.download='cnv_'+Date.now()+'.csv'; a.click();
}


// ══════════════════════════════════════════
// FINGER TAPPING TASK (FTT)
// Subtests: dominant · non-dominant · alternating
// 3 × configurable-second trials each
// Metrics: taps, ITI mean/SD, asymmetry ratio
// ══════════════════════════════════════════
const FTT = {
  active:false, isPractice:false,
  subtest:null,    // 'dominant'|'nondominant'|'alternating'
  subtestIdx:0,    // 0/1/2
  trialIdx:0,      // within subtest
  trialPhase:null, // 'running'|'iti'|null
  taps:[],         // timestamps (ms) for current trial
  altNext:'L',     // expected next key in alternating
  altErrors:0,     // out-of-order presses in alternating
  log:[],          // {subtest,trial,taps,duration,meanITI,sdITI}
  practiceLog:[],
  _timers:[], _raf:null,
  // configurable
  trialDur:10,  // seconds
  nTrials:3,
  itiDur:3,     // seconds rest between trials
};
const FTT_SUBTESTS=['dominant','nondominant','alternating'];
const FTT_LABELS  =['DOMINANT HAND','NON-DOMINANT HAND','ALTERNATING'];

function fttT(fn,ms){ const t=setTimeout(fn,ms); FTT._timers.push(t); return t; }
function fttClear(){ FTT._timers.forEach(t=>clearTimeout(t)); FTT._timers=[]; }

function startFTT(isPractice){
  FTT.active=true; FTT.isPractice=isPractice;
  FTT.subtestIdx=0; FTT.trialIdx=0; FTT.trialPhase=null;
  FTT.taps=[]; FTT.altNext='L'; FTT.altErrors=0;
  if(!isPractice){FTT.log=[];}else{FTT.practiceLog=[];}
  fttClear();
  if(FTT._raf){cancelAnimationFrame(FTT._raf);FTT._raf=null;}
  hideAll();
  $('fttScreen').style.display='flex';
  $('fttPracticeBanner').style.display=isPractice?'block':'none';
  $('fttStimPhase').style.display='none';
  $('fttResultsPhase').style.display='none';
  $('exportBtn').disabled=true;
  $('si-task').textContent='FTT'+(isPractice?' (PRAC)':'');
  $('fttProgressBar').style.width='0%';
  speak(isPractice?'Practice finger tapping.':'Starting finger tapping task.');
  fttT(fttStartSubtest, 700);
}

function fttStartSubtest(){
  if(FTT.subtestIdx>=FTT_SUBTESTS.length){ fttEnd(); return; }
  FTT.subtest=FTT_SUBTESTS[FTT.subtestIdx];
  FTT.trialIdx=0; FTT.altNext='L'; FTT.altErrors=0;
  $('fttSubLabel').textContent=FTT_LABELS[FTT.subtestIdx];
  const isAlt=(FTT.subtest==='alternating');
  $('fttUniWrap').style.display=isAlt?'none':'flex';
  $('fttAltWrap').style.display=isAlt?'flex':'none';
  $('fttStimPhase').style.display='flex';
  $('fttFeedback').textContent=''; $('fttItiMsg').textContent='';
  speak(FTT_LABELS[FTT.subtestIdx]+'.');
  fttT(fttStartTrial, 1200);
}

function fttStartTrial(){
  FTT.trialIdx++;
  FTT.taps=[]; FTT.altNext='L'; FTT.altErrors=0;
  FTT.trialPhase='running';
  const isAlt=(FTT.subtest==='alternating');

  $('ftt-trial').textContent='Trial '+FTT.trialIdx+'/'+FTT.nTrials;
  $('ftt-phase').textContent=FTT.subtest.toUpperCase();
  $('fttItiMsg').textContent='';
  $('fttFeedback').textContent='';

  if(isAlt){
    $('fttAltCount').textContent='0';
    $('fttBtnL').className='ftt-alt-btn next';
    $('fttBtnR').className='ftt-alt-btn';
  } else {
    $('fttCount').textContent='0';
    $('fttTapBtn').className='ftt-tap-btn';
    $('fttTapBtn').style.borderColor='';
  }

  // Progress bar covers entire task proportionally
  const totalTrials=(FTT.isPractice?1:FTT.nTrials)*FTT_SUBTESTS.length;
  const doneTrials=FTT.subtestIdx*FTT.nTrials+(FTT.trialIdx-1);
  $('fttProgressBar').style.width=((doneTrials/totalTrials)*100).toFixed(0)+'%';

  // Countdown timer via rAF
  const startTime=performance.now();
  const dur=FTT.trialDur*1000;
  function tick(){
    if(FTT.trialPhase!=='running') return;
    const elapsed=performance.now()-startTime;
    const rem=Math.max(0,(dur-elapsed)/1000);
    const el=isAlt?$('fttAltTimerTxt'):$('fttTimerTxt');
    if(el) el.textContent=rem.toFixed(1)+' s remaining';
    if(elapsed<dur){ FTT._raf=requestAnimationFrame(tick); }
    else { fttEndTrial(startTime,elapsed); }
  }
  FTT._raf=requestAnimationFrame(tick);

  // Hard stop fallback
  fttT(()=>{ if(FTT.trialPhase==='running') fttEndTrial(startTime,dur); }, dur+100);
}

function fttTap(e){
  if(!FTT.active||FTT.trialPhase!=='running'||FTT.subtest==='alternating') return;
  if(e) e.preventDefault();
  FTT.taps.push(performance.now());
  const n=FTT.taps.length;
  $('fttCount').textContent=n;
  // Brief flash
  const btn=$('fttTapBtn');
  btn.classList.add('flash');
  setTimeout(()=>btn.classList.remove('flash'),60);
  triggerFlash();
}

function fttAltTap(side, e){
  if(!FTT.active||FTT.trialPhase!=='running'||FTT.subtest!=='alternating') return;
  if(e) e.preventDefault();
  if(side!==FTT.altNext){ FTT.altErrors++; return; } // wrong hand — ignore tap
  FTT.taps.push(performance.now());
  FTT.altNext=(side==='L'?'R':'L');
  $('fttAltCount').textContent=FTT.taps.length;
  // Highlight next expected button
  $('fttBtnL').className='ftt-alt-btn'+(FTT.altNext==='L'?' next':'');
  $('fttBtnR').className='ftt-alt-btn'+(FTT.altNext==='R'?' next':'');
  // Flash the tapped button
  const btn=side==='L'?$('fttBtnL'):$('fttBtnR');
  btn.classList.add('flash');
  setTimeout(()=>{ btn.className='ftt-alt-btn'+(FTT.altNext===side?' next':''); },70);
  triggerFlash();
}

document.addEventListener('keydown', e=>{
  if(!FTT.active||FTT.trialPhase!=='running') return;
  if(FTT.subtest==='alternating'){
    if(e.code==='KeyF'){ e.preventDefault(); fttAltTap('L',null); }
    if(e.code==='KeyJ'){ e.preventDefault(); fttAltTap('R',null); }
  } else {
    if(e.code==='Space'||e.code==='KeyF'||e.code==='KeyJ'){ e.preventDefault(); fttTap(null); }
  }
});

function fttCalcITI(taps){
  if(taps.length<2) return {mean:null,sd:null};
  const itis=[];
  for(let i=1;i<taps.length;i++) itis.push(taps[i]-taps[i-1]);
  const mean=itis.reduce((a,b)=>a+b,0)/itis.length;
  const sd=Math.sqrt(itis.map(x=>(x-mean)**2).reduce((a,b)=>a+b,0)/itis.length);
  return {mean,sd};
}

function fttEndTrial(startTime, elapsed){
  if(FTT.trialPhase!=='running') return;
  FTT.trialPhase='iti';
  if(FTT._raf){cancelAnimationFrame(FTT._raf);FTT._raf=null;}
  fttClear();

  const {mean,sd}=fttCalcITI(FTT.taps);
  const entry={
    subtest:FTT.subtest, trial:FTT.trialIdx,
    taps:FTT.taps.length, duration:+(elapsed/1000).toFixed(2),
    meanITI:mean?+mean.toFixed(1):null,
    sdITI:sd?+sd.toFixed(1):null,
  };
  (FTT.isPractice?FTT.practiceLog:FTT.log).push(entry);

  const isAlt=(FTT.subtest==='alternating');
  const timerEl=isAlt?$('fttAltTimerTxt'):$('fttTimerTxt');
  if(timerEl) timerEl.textContent='0.0 s remaining';
  $('fttFeedback').textContent=FTT.taps.length+' taps  ('+(mean?mean.toFixed(0):'—')+' ms ITI)';
  $('fttFeedback').className='feedback ok';
  updateSidebar();

  // Decide next step
  const maxTrials=FTT.isPractice?1:FTT.nTrials;
  if(FTT.trialIdx>=maxTrials){
    // End of this subtest
    if(FTT.isPractice||FTT.subtestIdx>=FTT_SUBTESTS.length-1){
      fttT(fttEnd, 1000);
    } else {
      FTT.subtestIdx++;
      $('fttItiMsg').textContent='Rest — next subtest in '+FTT.itiDur+' s…';
      fttT(fttStartSubtest, FTT.itiDur*1000);
    }
  } else {
    $('fttItiMsg').textContent='Rest — next trial in '+FTT.itiDur+' s…';
    fttT(fttStartTrial, FTT.itiDur*1000);
  }
}

function fttEnd(){
  FTT.active=false;
  $('fttStimPhase').style.display='none';
  $('fttProgressBar').style.width='100%';
  const log=FTT.isPractice?FTT.practiceLog:FTT.log;

  if(FTT.isPractice){
    const t=log.length?log[0].taps:0;
    hideAll();
    $('pcStats').innerHTML='TAPS &nbsp;<span>'+t+'</span> &nbsp;&nbsp; ITI &nbsp;<span>'+(log.length&&log[0].meanITI?log[0].meanITI.toFixed(0)+' ms':'—')+'</span>';
    $('practiceComplete').style.display='flex'; speak('Practice complete.'); return;
  }

  $('exportBtn').disabled=false;
  const sub=(name)=>log.filter(r=>r.subtest===name);
  const meanTaps=(arr)=>arr.length?(arr.reduce((a,b)=>a+b.taps,0)/arr.length).toFixed(1):'--';
  const meanITI =(arr)=>{const v=arr.filter(r=>r.meanITI!=null);return v.length?(v.reduce((a,b)=>a+b.meanITI,0)/v.length).toFixed(0):'--';};
  const meanSD  =(arr)=>{const v=arr.filter(r=>r.sdITI!=null);return v.length?(v.reduce((a,b)=>a+b.sdITI,0)/v.length).toFixed(0):'--';};

  const dom=sub('dominant'),ndom=sub('nondominant'),alt=sub('alternating');
  const domT=parseFloat(meanTaps(dom)),ndomT=parseFloat(meanTaps(ndom));
  const asymm=(!isNaN(domT)&&!isNaN(ndomT)&&domT>0)?((domT-ndomT)/domT*100).toFixed(1)+'%':'--';

  $('fttMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+meanTaps(dom)+'</div><div class="vm-lbl">Dom taps/trial</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+meanTaps(ndom)+'</div><div class="vm-lbl">Non-dom taps/trial</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+meanTaps(alt)+'</div><div class="vm-lbl">Alternating taps/trial</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+asymm+'</div><div class="vm-lbl">Dom asymmetry</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+meanITI(dom)+' ms</div><div class="vm-lbl">Dom mean ITI</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+meanSD(dom)+' ms</div><div class="vm-lbl">Dom ITI SD (regularity)</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+meanITI(ndom)+' ms</div><div class="vm-lbl">Non-dom mean ITI</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+meanITI(alt)+' ms</div><div class="vm-lbl">Alt mean ITI</div></div>';

  $('fttResultsPhase').style.display='block';
  speak('Finger tapping complete. Dominant: '+meanTaps(dom)+' taps. Non-dominant: '+meanTaps(ndom)+' taps.');
  updateSidebar();
}

function fttExportCSV(){
  if(!FTT.log.length) return;
  const h='subtest,trial,taps,duration_s,mean_iti_ms,sd_iti_ms\n';
  const rows=FTT.log.map(r=>[r.subtest,r.trial,r.taps,r.duration,r.meanITI!=null?r.meanITI.toFixed(1):'',r.sdITI!=null?r.sdITI.toFixed(1):''].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});
  const a=document.createElement('a'); a.href=URL.createObjectURL(blob);
  a.download='fingertapping_'+Date.now()+'.csv'; a.click();
}


// ══════════════════════════════════════════════════════
// LANGUAGE SUPPORT — ESPAÑOL
// ══════════════════════════════════════════════════════
let currentLang='en';
try{ window._cognosLang='en'; window.PARADIGMS=PARADIGMS; }catch(e){}  // harness exposure (PARADIGMS hoisted const)

const PARADIGMS_ES={
  PRL:{name:"APRENDIZAJE DE REVERSIÓN PROBABILÍSTICA",body:"Elige entre dos estímulos con recompensa 80/20; el mejor se invierte sin aviso. Mide la flexibilidad basada en recompensa y la monitorización de retroalimentación (FRN/RewP).",rules:[{key:"F / J",desc:"Elige el estímulo IZQUIERDO (F) o DERECHO (J)"},{key:"80 / 20",desc:"El bueno se recompensa ~80%, el malo ~20%"},{key:"REVERSIÓN",desc:"Los estímulos bueno y malo se intercambian sin aviso"},{key:"GANA-SIGUE",desc:"Una sola pérdida no implica una elección errónea"},{key:"MEDIDAS",desc:"Precisión, reversiones, errores perseverativos, gana-sigue/pierde-cambia"}]},
  DD:{name:"DESCUENTO POR DEMORA",body:"Elecciones repetidas entre una recompensa menor-pronto y otra mayor-tardía ($1000); una escalera halla el punto de indiferencia en cada demora, dando la k hiperbólica y el área bajo la curva. Mide la impulsividad.",rules:[{key:"F / J",desc:"Elige la opción IZQUIERDA (F) o DERECHA (J)"},{key:"AHORA vs DESPUÉS",desc:"Una cantidad menor ahora o $1000 tras una demora"},{key:"SIN RESPUESTA CORRECTA",desc:"Elige la opción que de verdad prefieras"},{key:"DEMORAS",desc:"La demora crece de días a años"},{key:"MEDIDAS",desc:"k hiperbólica, ln(k), área bajo la curva, % inmediato"}]},
  SRTT:{name:"TIEMPO DE REACCIÓN EN SERIE",body:"Pulsa la tecla de la casilla iluminada; las posiciones siguen en secreto una secuencia repetida, por lo que las respuestas se aceleran al aprenderla. Un bloque aleatorio revela el aprendizaje.",rules:[{key:"D F J K",desc:"Cada casilla tiene una tecla — pulsa la que se ilumine"},{key:"SÉ RÁPIDO",desc:"Responde con rapidez y precisión"},{key:"SECUENCIA OCULTA",desc:"Las posiciones siguen un patrón repetido"},{key:"BLOQUE ALEATORIO",desc:"Un bloque es aleatorio — el TR sube si la aprendiste"},{key:"MEDIDAS",desc:"TR por bloque, efecto de aprendizaje, precisión"}]},
  BART:{name:"TAREA DE RIESGO DEL GLOBO (BART)",body:"Infla un globo por dinero; cada bombeo añade recompensa pero aumenta el riesgo de estallido. Cobra cuando quieras; si estalla, pierdes ese globo. El promedio ajustado de bombeos mide la toma de riesgos.",rules:[{key:"BOMBEAR (F)",desc:"Infla el globo — cada bombeo añade dinero y riesgo"},{key:"COBRAR (J)",desc:"Guarda el dinero del globo actual y continúa"},{key:"ESTALLIDO",desc:"Si estalla antes de cobrar, pierdes ese dinero"},{key:"COMPROMISO",desc:"Más recompensa exige más bombeos, con más riesgo"},{key:"MEDIDAS",desc:"Bombeos ajustados, total ganado, estallidos"}]},
  OSPAN:{name:"AMPLITUD DE OPERACIONES",body:"Alterna juzgar una ecuación breve (verdadero/falso) con recordar una letra; luego recuerda las letras en orden. La medida de referencia de la capacidad de memoria de trabajo compleja.",rules:[{key:"ECUACIÓN",desc:"Decide si la operación es correcta — VERDADERO (T) / FALSO (F)"},{key:"LETRA",desc:"Tras cada ecuación, recuerda la letra que aparece"},{key:"RECUERDO",desc:"Al final, pulsa las letras en su orden original"},{key:"SIGUE EL RITMO",desc:"Responde rápido — no te pares a repasar"},{key:"MEDIDAS",desc:"Puntuación parcial y absoluta, precisión aritmética"}]},
  TBIS:{name:"BISECCIÓN TEMPORAL",body:"Aprende una duración patrón CORTA y otra LARGA; luego juzga si cada destello se acerca más a la CORTA o la LARGA. Da el punto de bisección y la razón de Weber; implica la CNV.",rules:[{key:"APRENDE",desc:"Observa primero los patrones CORTO y LARGO"},{key:"JUZGA",desc:"Decide si el destello fue más CORTO (F) o LARGO (J)"},{key:"SIN RETROALIM.",desc:"Las pruebas no dan retroalimentación — confía en tu percepción"},{key:"NO CUENTES",desc:"Las duraciones son breves — juzga por intuición"},{key:"MEDIDAS",desc:"Punto de bisección, razón de Weber, curva proporción-largo"}]},

  GNG:{name:'IR / NO IR',body:'La tarea Go/No-Go mide la inhibición de respuesta — tu capacidad para suprimir una acción prepotente. En cada ensayo aparece un estímulo en el centro. Debes responder rápidamente a los estímulos IR (●) y suprimir toda respuesta ante los NO IR (○).',rules:[{key:'F / ESPACIO',desc:'IR — responde al objetivo'},{key:'J',desc:'NO IR — suprime la respuesta'},{key:'● (relleno)',desc:'IR — responde tan rápido como puedas'},{key:'○ (vacío)',desc:'NO IR — no respondas'},{key:'TIEMPO',desc:'Sin respuesta en 1,5 s se registra como supresión'},{key:'PROPORCIÓN',desc:'70% ensayos IR · 30% ensayos NO IR'}]},
  NBACK:{name:'N-ATRÁS (1-atrás)',body:'La tarea N-Atrás mide la actualización de la memoria de trabajo. Una letra aparece en cada ensayo. Decide si la letra actual coincide con la presentada exactamente un ensayo antes.',rules:[{key:'F / ESPACIO',desc:'COINCIDE — la letra coincide con N ensayos atrás'},{key:'J',desc:'NO COINCIDE — la letra no coincide'},{key:'PRIMER ENSAYO',desc:'No hay respuesta correcta posible — solo observa'},{key:'TASA',desc:'~35% de los ensayos son coincidencias'}]},
  SPATIAL:{name:'ATENCIÓN ESPACIAL',body:'Mide el procesamiento visuoespacial y la atención selectiva. En cada ensayo se resalta una celda de una cuadrícula 3×3. Haz clic en la celda resaltada lo más rápido posible.',rules:[{key:'CLIC',desc:'Haz clic en la celda resaltada lo más rápido posible'},{key:'PRECISIÓN',desc:'Hacer clic en la celda incorrecta cuenta como error'},{key:'TIEMPO',desc:'Sin respuesta en 1,5 s se registra como omisión'}]},
  POSNER:{name:'PARADIGMA POSNER',body:'Mide la atención espacial encubierta. Una señal dirige la atención hacia la ubicación probable de un objetivo. Las TR más rápidas en ensayos válidos revelan el beneficio atencional de la señal.',rules:[{key:'ESPACIO / F',desc:'Responde cuando aparezca el objetivo'},{key:'ENDÓGENA',desc:'Flecha central — desplazamiento voluntario de atención'},{key:'EXÓGENA',desc:'Flash periférico — captura automática y reflexiva'},{key:'BENEFICIO',desc:'Beneficio = TR inválida − TR válida'}]},
  VRT:{name:'RECONOCIMIENTO VISUAL',body:'Mide la memoria episódica visual. Durante el estudio se muestran patrones geométricos abstractos. Tras un intervalo de retención, aparecen pares de patrones — uno estudiado y uno nuevo. Identifica cuál viste durante el estudio.',rules:[{key:'ESTUDIO',desc:'Observa la matriz de patrones — 4 segundos por conjunto'},{key:'PRUEBA',desc:'Aparecen dos patrones — haz clic en el que estudiaste'},{key:'MÉTRICAS',desc:'Tasa de aciertos, falsas alarmas, d\u2019 y TR'}]},
  TOJ:{name:"Temporal Order Judgment (TOJ)",body:"The TOJ task requires judging which of two stimuli (left or right) appeared first. SOA is varied via staircase to estimate the JND (just-noticeable difference, ~50ms in healthy adults) and PSS (point of subjective simultaneity). JND is elevated in Parkinson disease, cerebellar ataxia, and dyslexia. The PSS reflects attentional biases.",rules:[{key:"F",desc:"Press F if the LEFT stimulus appeared first"},{key:"J",desc:"Press J if the RIGHT stimulus appeared first"},{key:"GUESS",desc:"If unsure, guess - there is no neutral option"},{key:"STAIRCASE",desc:"Time gap between stimuli adapts based on your responses"},{key:"JND",desc:"The just-noticeable difference (JND) is the primary measure"}]},
  CSR:{name:'REVERSIÓN DE CONTRASTE',body:'Un tablero de ajedrez invierte la polaridad constantemente. La mayoría de las reversiones son estándar. Una pequeña proporción son OBJETIVO — un giro de 45° durante un ciclo. Responde lo más rápido posible.',rules:[{key:'ESPACIO',desc:'Presiona cuando detectes una reversión OBJETIVO (girada)'},{key:'OBSERVA',desc:'El tablero reversa continuamente — mantén la fijación'},{key:'ESTÁNDAR',desc:'La mayoría de las reversiones son estándar — NO respondas'},{key:'OBJETIVO',desc:'Giro ocasional de 45° — presiona ESPACIO inmediatamente'}]},
  P300:{name:'P300 AUDITIVO',body:'El paradigma oddball auditivo elicita el componente P300. Se presentan tonos estándar frecuentes con raros tonos oddball intercalados. Detecta el tono oddball y presiona ESPACIO. Estándar: 1000 Hz; Oddball: 2000 Hz. Probabilidad: 20%.',rules:[{key:'ESPACIO',desc:'Presiona cuando escuches el tono RARO (agudo)'},{key:'ESTÁNDAR',desc:'1000 Hz (frecuente) — NO respondas'},{key:'ODDBALL',desc:'2000 Hz (raro, 20%) — presiona ESPACIO'},{key:'AURICULARES',desc:'Usa auriculares para mejor discriminación'}]},
  STB:{name:'MEMORIA STERNBERG',body:'Mide la velocidad de búsqueda en la memoria de trabajo verbal. Se presenta un conjunto de letras UNA A LA VEZ — 1 segundo cada una. Tras un intervalo de retención, aparece una letra sonda. Responde SÍ si estaba en el conjunto.',rules:[{key:'F / ESPACIO',desc:'SÍ — la letra sonda SÍ estaba en el conjunto'},{key:'J',desc:'NO — la letra sonda NO estaba en el conjunto'},{key:'ESTUDIO',desc:'Las letras aparecen UNA A LA VEZ — 1 s cada una'},{key:'VELOCIDAD',desc:'Responde tan rápido y preciso como puedas'}]},
  WCST:{name:'CLASIFICACIÓN DE CARTAS (WCST)',body:'Basada en el Test de Wisconsin. Una carta estímulo debe emparejarse con una de cuatro cartas objetivo según una regla — color, forma o número. La regla nunca se comunica; debes inferirla. La regla cambia sin aviso tras 10 aciertos consecutivos.',rules:[{key:'CLIC',desc:'Haz clic en una carta objetivo para clasificar la carta estímulo'},{key:'REGLAS',desc:'Tres reglas posibles: color · forma · número de símbolos'},{key:'CAMBIO',desc:'La regla cambia silenciosamente tras 10 aciertos consecutivos'},{key:'PERSEV.',desc:'Error perseverativo = seguir la regla antigua tras el cambio'}]},
  RECALL:{name:'RECONOCIMIENTO DE PALABRAS',body:'Mide la memoria episódica mediante reconocimiento (más fácil de responder que el recuerdo libre). Se estudia una lista de palabras comunes, una a la vez. Tras una breve tarea distractora, se muestran palabras una a una: algunas estaban en la lista (ANTIGUA) y otras son nuevas (NUEVA). Decide si viste cada palabra durante el estudio. Se registran aciertos, falsas alarmas y d′.',rules:[{key:'F = ANTIGUA',desc:'Pulsa F si la palabra ESTABA en la lista estudiada'},{key:'J = NUEVA',desc:'Pulsa J si la palabra NO estaba en la lista'},{key:'ESTUDIO',desc:'Lee cada palabra con atención — 2 segundos cada una'},{key:'DISTRACTOR',desc:'Resuelve problemas de aritmética durante 30 s'}]},
  TMT:{name:'TEST DE RASTREO',body:'Conecta círculos numerados y con letras en secuencia. Parte A: velocidad de procesamiento. Parte B: flexibilidad cognitiva (alterna números y letras).',rules:[{key:'CLIC',desc:'Haz clic en los círculos en la secuencia correcta'},{key:'PARTE A',desc:'Conecta números 1 → 2 → 3 … en orden ascendente'},{key:'PARTE B',desc:'Alterna: 1 → A → 2 → B → 3 → C …'},{key:'ERRORES',desc:'Se cuentan los errores — haz clic en el objetivo correcto para continuar'}]},
  DSC:{name:'CODIFICACIÓN DÍGITO-SÍMBOLO',body:'Una clave empareja cada dígito 1–9 con un símbolo único. Rellena el símbolo correspondiente lo más rápido posible. 90 segundos — medida clásica de velocidad de procesamiento (WAIS-IV).',rules:[{key:'SELECCIONA',desc:'Haz clic en un símbolo de la paleta'},{key:'RELLENA',desc:'Haz clic en una casilla vacía para colocar el símbolo'},{key:'TECLAS 1–9',desc:'Presiona una tecla numérica para seleccionar ese símbolo'},{key:'TIEMPO',desc:'Límite de 90 segundos'}]},
  PNT:{name:'DENOMINACIÓN DE IMÁGENES',body:'Aparece una ilustración de un objeto común. Nómbralo en voz alta lo más rápido posible. El reconocimiento de voz puntúa tu respuesta y registra el tiempo de reacción.',rules:[{key:'HABLA',desc:'Nombra el objeto en voz alta lo más rápido posible'},{key:'MICRÓFONO',desc:'Haz clic en el botón de micrófono para comenzar a escuchar'},{key:'PUNTUACIÓN',desc:'Correcto si la respuesta coincide con el nombre objetivo'}]},
  BNT:{name:"Boston Naming Test (BNT)",body:"The BNT (Kaplan et al., 1983) is the most widely used confrontation naming measure. Object drawings of graded frequency are presented one at a time; the participant identifies each by choosing its name from several options (multiple-choice recognition — no typing or speaking required). The BNT is sensitive to anomia from temporal lobe damage, Alzheimer disease, and stroke.",rules:[{key:"LOOK",desc:"An object drawing is shown on screen"},{key:"CHOOSE",desc:"Pick the word that names the object from the options"},{key:"KEYS",desc:"Click an option or press its number (1–4)"},{key:"GRADED",desc:"Items range from easy to hard"},{key:"SCORE",desc:"Number correct is the primary score"}]},
  MRT:{name:'ROTACIÓN MENTAL',body:'Aparecen dos estructuras de cubos 3D. Decide si son la misma forma rotada a un ángulo diferente, o imágenes especulares. La TR aumenta con el ángulo de rotación.',rules:[{key:'F / ESPACIO',desc:'IGUAL — misma forma, ángulo diferente'},{key:'J',desc:'DIFERENTE — imagen especular'},{key:'ROTACIÓN',desc:'TR más lenta = mayor ángulo de rotación'}]},
  FLANKER:{name:'FLANKER DE ERIKSEN',body:'Flechas aparecen en fila. Responde a la dirección de la flecha CENTRAL, ignorando las flanqueadoras. Los ensayos incongruentes (flanqueadoras opuestas) son más lentos.',rules:[{key:'F / ESPACIO',desc:'IZQUIERDA — la flecha central apunta a la izquierda'},{key:'J',desc:'DERECHA — la flecha central apunta a la derecha'},{key:'IGNORA',desc:'Ignora las flechas flanqueadoras'},{key:'INCONGRUENTE',desc:'Flanqueadoras opuestas — más lento, más errores'}]},
  STOP:{name:'SEÑAL DE STOP',body:'Responde a flechas izquierda/derecha lo más rápido posible. En ~25% de los ensayos suena una señal de stop — suprime tu respuesta. El TRSS mide la velocidad del control inhibitorio.',rules:[{key:'F / ESPACIO',desc:'Responde a la flecha IZQUIERDA'},{key:'J',desc:'Responde a la flecha DERECHA'},{key:'STOP',desc:'Señal de stop — suprime tu respuesta inmediatamente'},{key:'VELOCIDAD',desc:'Ve lo más rápido posible'}]},
  STROOP:{name:'STROOP COLOR-PALABRA',body:'Mide la atención selectiva y el control cognitivo. Una palabra de color aparece en una tinta que puede ser congruente, incongruente o neutral. Responde al COLOR DE LA TINTA — ignora la palabra.',rules:[{key:'F / G / H / J',desc:'COLOR DE LA TINTA: F=Rojo · G=Verde · H=Azul · J=Amarillo'},{key:'IGNORA LA PALABRA',desc:'La palabra impresa es un distractor'},{key:'CONGRUENTE',desc:'Palabra y color coinciden — más rápido'},{key:'INCONGRUENTE',desc:'Conflicto — más lento, revela la interferencia Stroop'}]},
  DST:{name:'AMPLITUD DE DÍGITOS',body:'Mide la capacidad de la memoria de trabajo verbal. Se presentan secuencias de dígitos uno a la vez. Directa: repite en el mismo orden. Inversa: repite al revés. Puntuación = secuencia correcta más larga.',rules:[{key:'OBSERVA',desc:'Los dígitos aparecen uno a la vez'},{key:'DIRECTA',desc:'Repite los dígitos en el MISMO orden'},{key:'INVERSA',desc:'Repite los dígitos en orden INVERSO'},{key:'CONFIRMA',desc:'Presiona ✓ o Enter cuando tu secuencia esté completa'}]},
  FTT:{name:'GOLPETEO DE DEDOS',body:'Mide la velocidad y coordinación motoras. Tres subpruebas: mano dominante, no dominante y alternado (F luego J). Cada subprueba: tres ensayos de 10 segundos. Basada en Halstead-Reitan.',rules:[{key:'DOMINANTE: ESPACIO o F',desc:'Mano dominante — golpea tan rápido como puedas'},{key:'NO DOM.: ESPACIO o J',desc:'Mano no dominante — igual, otra mano'},{key:'ALT.: F luego J',desc:'Alternado — secuencia estricta F luego J'},{key:'10 SEGUNDOS',desc:'Cada ensayo dura 10 segundos'}]},
  N400:{name:'N400 PRIMING SEMÁNTICO',body:'Una oración aparece palabra por palabra. La última palabra encaja naturalmente (congruente) o es semánticamente incongruente. Decide si la última palabra encaja en el contexto.',rules:[{key:'F / ESPACIO',desc:'ENCAJA — la palabra final es coherente'},{key:'J',desc:'NO ENCAJA — la palabra final es incongruente'},{key:'LEE',desc:'Lee cada palabra cuidadosamente'},{key:'VELOCIDAD',desc:'Responde tan rápido y preciso como puedas'}]},
  PMN:{name:"Phonological Mismatch Negativity (PMN)",body:"The PMN (Connolly and Phillips, 1994; also called phonological mapping negativity) is an early left-anterior negative ERP deflection peaking approximately 270-320 ms following the onset of a spoken word that is phonologically unexpected given a preceding sentence context — even when the word is semantically plausible. For example, after a sentence like 'The gardener watered the', the word 'garden' elicits a larger PMN than 'flowers' because the phonological onset /g/ is unexpected. The PMN is thought to reflect early mapping between the incoming acoustic signal and stored phonological representations in the mental lexicon, and dissociates from the N400 (which is later and sensitive to semantic fit). The PMN provides a measure of phonological prediction and pre-semantic lexical access during real-time language comprehension.",rules:[{key:"READ",desc:"A sentence stem appears followed by a final word — judge whether the ending makes sense"},{key:"Y / N",desc:"Press Y if the sentence makes sense, N if it does not"},{key:"PHONOLOGY",desc:"Some sentences are plausible but have an unexpected phonological onset for the final word"},{key:"PMN",desc:"PMN ~270ms left-anterior reflects phonological mismatch independent of meaning"},{key:"DISTINCT",desc:"PMN dissociates from N400: phonological mismatch can occur even when meaning is plausible"}]},
  MMN:{name:'NEGATIVIDAD DE DESAJUSTE',body:'Paradigma oddball auditivo pasivo — no se requiere respuesta. Una cadena de tonos estándar se reproduce con raros tonos desviantes. El MMN refleja discriminación auditiva pre-atentiva. Simplemente escucha.',rules:[{key:'PASIVO',desc:'No se requiere respuesta — solo escucha'},{key:'ESTÁNDAR',desc:'Tono frecuente — la mayoría de los tonos'},{key:'DESVIANTE',desc:'Tono raro con diferente frecuencia — elicita el MMN'}]},
  ORN:{name:"Object-Related Negativity (ORN)",body:"The ORN (Alain et al., 2001) is a fronto-central negative ERP component peaking approximately 150-250 ms after the onset of a sound that is perceived as consisting of two concurrent auditory objects (two simultaneous streams) rather than a single fused object. It is elicited when acoustic cues such as mistuning, onset asynchrony, or binaural disparity cause the auditory system to segregate two concurrent tones into separate perceptual streams. For example, presenting two tones simultaneously with a slight frequency mistuning will elicit a larger ORN than presenting the same tones in perfect harmonic fusion. The ORN is thus thought to reflect the neural correlate of auditory scene analysis — the automatic parsing of the acoustic environment into distinct sound sources — and is measured without requiring any explicit task from the participant.",rules:[{key:"LISTEN",desc:"Listen to each pair of simultaneous tones"},{key:"FUSED / SPLIT",desc:"Judge whether you hear ONE fused sound or TWO separate sounds"},{key:"Y = ONE",desc:"Press Y if the sounds fuse into a single object"},{key:"N = TWO",desc:"Press N if you can hear two distinct sounds"},{key:"ORN",desc:"ORN ~175ms fronto-central reflects automatic auditory stream segregation"}]},
  P600:{name:'P600 SINTÁCTICO',body:'Las oraciones aparecen palabra por palabra. La última palabra completa la oración correctamente o contiene una violación sintáctica. Decide si la oración es gramaticalmente correcta.',rules:[{key:'F / ESPACIO',desc:'CORRECTO — gramaticalmente correcto'},{key:'J',desc:'INCORRECTO — contiene una violación sintáctica'},{key:'VELOCIDAD',desc:'Responde tan rápido y preciso como puedas'}]},
  ERN:{name:'NEGATIVIDAD RELACIONADA CON EL ERROR',body:'Una tarea de elección apresurada: responde a la flecha central en 500 ms. Los errores son inevitables a esta velocidad. El ERN refleja el monitoreo de errores del cíngulo anterior.',rules:[{key:'F / ESPACIO',desc:'IZQUIERDA — flecha apunta a la izquierda'},{key:'J',desc:'DERECHA — flecha apunta a la derecha'},{key:'VELOCIDAD',desc:'Responde DENTRO de 500 ms — los errores son parte del paradigma'}]},
  PE:{name:"Pe — Error Positivity",body:"The Pe (Falkenstein et al., 1991) is a centroparietal positive deflection peaking approximately 200-400 ms after the ERN following the commission of an error. While the ERN is thought to reflect automatic error detection (possibly unconscious), the Pe is considered to index the conscious awareness of and affective response to an error — essentially the motivationally significant appraisal of having made a mistake. Evidence for this comes from findings that Pe amplitude is modulated by error awareness (larger for noticed vs unnoticed errors in paradigms where subjects report error awareness), by individual differences in conscientiousness, by OCD severity (enlarged Pe), and by mindfulness training (attenuated Pe). Pe is generated in the anterior cingulate cortex and insula and is related to post-error slowing and adaptive behaviour.",rules:[{key:"SPEED",desc:"Respond as fast as possible — speed pressure produces errors for Pe measurement"},{key:"ARROW",desc:"Press F for left arrows, J for right arrows in the flanker task"},{key:"ERRORS",desc:"When you make an error, Pe will follow the ERN — a positive wave reflecting your awareness"},{key:"Pe vs ERN",desc:"ERN ~0-100ms after error (automatic detection); Pe ~200-400ms (conscious awareness)"},{key:"NOTICE",desc:"After each trial you can report whether you noticed making an error — this gates Pe amplitude"}]},
  CNV:{name:'VARIACIÓN CONTINGENTE NEGATIVA',body:'Un tono de advertencia (S1) señala que un estímulo imperativo (S2) seguirá tras un periodo fijo. Responde a S2 con ESPACIO. En ensayos de captura (sin S2), suprime la respuesta.',rules:[{key:'S1 (tono)',desc:'Señal de advertencia — un tono breve'},{key:'S2 (círculo)',desc:'Estímulo imperativo — presiona ESPACIO tan rápido como puedas'},{key:'CAPTURA',desc:'Algunos ensayos no tienen S2 — suprime la respuesta'},{key:'ESPACIO',desc:'Única tecla de respuesta válida'}]},

  // ── Variantes ERP ───────────────────────────────────────
  ORN:{name:'ORN — NEGATIVIDAD DE OBJETO',body:'Object-Related Negativity — negatividad fronto-central ~150–250 ms ante un complejo de dos tonos simultáneos percibidos como dos objetos auditivos. Refleja el análisis de la escena auditiva y la formación de objetos auditivos.',rules:[{key:'PASIVO',desc:'Escucha por audífonos — no se requiere tarea activa'},{key:'ESTÁNDAR',desc:'Un solo tono — un objeto auditivo unificado'},{key:'DESVIANTE',desc:'Desafinación ~3 % — se percibe como dos objetos'},{key:'ORN',desc:'Negatividad fronto-central ~150–250 ms'}]},
  MMNSP:{name:'MMN — HABLA',body:'Contraste fonémico pasivo: /ba/ estándar vs /pa/ desviante. MMN del habla, usado en investigación de dislexia y desarrollo del lenguaje.',rules:[{key:'ESCUCHA',desc:'Pasivamente por audífonos'},{key:'ESTÁNDAR',desc:'/ba/ (85 %)'},{key:'DESVIANTE',desc:'/pa/ (15 %) — difiere en lugar de articulación'},{key:'MMN',desc:'Negatividad fronto-central ~150–250 ms'}]},
  PMN:{name:'PMN — NEGATIVIDAD FONOLÓGICA',body:'Phonological Mismatch Negativity — negatividad anterior izquierda temprana ~270 ms ante incongruencia fonológica en palabras habladas. Distinta del N400 semántico; refleja el acceso léxico a nivel fonémico.',rules:[{key:'ESCUCHA',desc:'Palabras por audífonos'},{key:'ESPERADO',desc:'Fonema final coherente con el contexto'},{key:'INFRACCIÓN',desc:'Final fonológicamente incompatible'},{key:'PMN',desc:'Negatividad anterior izquierda ~270 ms'}]},
  ELAN:{name:'ELAN — NEGATIV. ANT. IZQ. TEMPRANA',body:'Early Left Anterior Negativity — respuesta ultra-temprana (100–200 ms) ante una infracción sintáctica, anterior al P600. Localización anterior izquierda en el cuero cabelludo. Indexa la detección automática de infracciones de la estructura de frase.',rules:[{key:'F / ESPACIO',desc:'GRAMATICAL'},{key:'J',desc:'INFRACCIÓN — estructura de frase rota'},{key:'ELAN',desc:'Negatividad anterior izquierda 100–200 ms'},{key:'P600',desc:'A menudo acompañada por un positivo tardío 500–800 ms'}]},
  LAN:{name:'LAN — NEGATIVIDAD ANT. IZQUIERDA',body:'Left Anterior Negativity — respuesta morfosintáctica ~300–500 ms ante infracciones de concordancia (número, género, caso). Lateralizada a la izquierda; separa el procesamiento sintáctico del semántico. Distinta del N400; específica para la gramática.',rules:[{key:'F / ESPACIO',desc:'GRAMATICAL'},{key:'J',desc:'ERROR DE CONCORDANCIA'},{key:'LAN',desc:'Negatividad anterior izquierda ~300–500 ms'},{key:'ESPECÍFICA',desc:'Gramática, no semántica'}]},
  CPS:{name:'CPS — DESPLAZAMIENTO POSITIVO DE CIERRE',body:'Closure Positive Shift — positividad bilateral en los límites prosódicos de frases habladas ~200–500 ms. Refleja el análisis sintáctico de frases entonativas; distinto del procesamiento sintáctico y semántico.',rules:[{key:'ESCUCHA',desc:'Oraciones habladas con límites prosódicos'},{key:'LÍMITE',desc:'Pausa o alargamiento entonativo'},{key:'CPS',desc:'Positividad bilateral ~200–500 ms'},{key:'PASIVO',desc:'No se requiere tarea activa'}]},
  ASSR:{name:'ASSR 40 Hz',body:'Auditory Steady-State Response — tono modulado en amplitud a 40 Hz. El cerebro se sincroniza con fase a 40 Hz en la banda gamma. Alterada en esquizofrenia; indexa la función gabaérgica cortical.',rules:[{key:'ESCUCHA',desc:'Tono AM 40 Hz por audífonos'},{key:'PASIVO',desc:'No se requiere tarea activa'},{key:'RESPUESTA',desc:'Pico nítido a 40 Hz en el espectro EEG'},{key:'CLÍNICA',desc:'Reducida en esquizofrenia'}]},
  ABR:{name:'ABR — RESPUESTA TRONCOENCEFÁLICA',body:'Auditory Brainstem Response — potenciales de campo lejano ante un clic. Las ondas I–V reflejan núcleos auditivos sucesivos del tronco. La latencia de la onda V es el estándar clínico de oro para el umbral auditivo y la neuropatía auditiva.',rules:[{key:'CLICS',desc:'Clics de alta frecuencia por auriculares de inserción'},{key:'PASIVO',desc:'A menudo en sueño o sedación'},{key:'ONDAS I–V',desc:'5 picos en los primeros 10 ms'},{key:'CLÍNICA',desc:'Latencia V — umbral auditivo / neuropatía'}]},
  N1P2:{name:'N1-P2 — RESPUESTA AUDITIVA',body:'N1-P2 — negatividad vertex ~100 ms y positividad ~200 ms ante el inicio de un tono. La amplitud se modula por la atención, la habituación y el arousal. Respuesta auditiva cortical básica.',rules:[{key:'ESCUCHA',desc:'Serie de tonos por audífonos'},{key:'N1',desc:'Negatividad vertex ~100 ms'},{key:'P2',desc:'Positividad vertex ~200 ms'},{key:'MODULACIÓN',desc:'Aumenta con la atención'}]},
  RON:{name:'RON — NEGATIVIDAD DE REORIENTACIÓN',body:'Reorienting Negativity — negatividad fronto-central ~400–600 ms tras un desviante inesperado que captó la atención. Refleja la reorientación de la atención hacia el canal principal tras la distracción por un sonido nuevo.',rules:[{key:'ESCUCHA',desc:'Tarea activa con desviantes auditivos'},{key:'CAPTURA',desc:'Un sonido nuevo captura la atención'},{key:'REORIENTACIÓN',desc:'La atención vuelve a la tarea'},{key:'RON',desc:'Negatividad fronto-central ~400–600 ms'}]},
  P1N1:{name:'P1/N1 — ATENCIÓN ESPACIAL',body:'Destello bilateral con atención espacial dirigida. P1 mejorado ~100 ms sobre la corteza occipital contralateral al sitio atendido; N1 mejorado ~160 ms. ERP canónico de la atención espacial encubierta (Hillyard et al., 1973).',rules:[{key:'FIJACIÓN',desc:'Fija el centro — no muevas los ojos'},{key:'SEÑAL',desc:'Flecha izquierda / derecha'},{key:'OBJETIVO',desc:'Destello a la izquierda o derecha'},{key:'P1/N1',desc:'Occipital contralateral, mejorado en el lado atendido'}]},
  N170:{name:'N170 — CARA / OBJETO',body:'N170 — negatividad occipito-temporal ~170 ms, selectivamente mayor para caras. Caras esquemáticas generadas proceduralmente y objetos geométricos se presentan; responde "cara" u "objeto". El efecto de inversión facial (N170 mayor/tardío para caras invertidas) es un marcador robusto del procesamiento configural de caras.',rules:[{key:'F',desc:'CARA — el estímulo es una cara'},{key:'J',desc:'OBJETO — el estímulo es una figura geométrica'},{key:'N170',desc:'Negatividad occipito-temporal ~170 ms, mayor para caras'},{key:'INVERSIÓN',desc:'Caras invertidas dan N170 mayor y más tardío'}]},
  VPP:{name:'VPP — POSITIVIDAD VERTEX',body:'Vertex Positive Potential — análogo positivo del N170 en el vértice medial (Cz); pico ~170 ms ante caras; específico para caras. Refleja la misma fuente fusiforme que el N170, pero con polaridad opuesta en Cz.',rules:[{key:'F',desc:'CARA'},{key:'J',desc:'OBJETO'},{key:'VPP',desc:'Pico positivo en Cz ~170 ms'},{key:'FUENTE',desc:'Giro fusiforme — mismo dipolo que el N170'}]},
  N2PC:{name:'N2pc — CAPTURA DE ATENCIÓN',body:'Búsqueda visual con disposición bilateral. Negatividad posterior contralateral ~220–300 ms (PO7/PO8) marca la captura encubierta de atención por el objetivo. Índice canónico de la selección del objetivo en la búsqueda espacial.',rules:[{key:'FIJACIÓN',desc:'Fija el centro — no muevas los ojos'},{key:'BÚSQUEDA',desc:'Objetivo a la izquierda o derecha entre distractores'},{key:'RESPUESTA',desc:'Propiedad del objetivo (color/orientación)'},{key:'N2pc',desc:'Negatividad posterior contralateral ~220–300 ms'}]},
  N2B:{name:'N2b — N2 DE OBJETIVO',body:'N2b — negatividad fronto-central ~200–300 ms ante objetivos; atención y categorización del estímulo. Separable del N2pc (espacial) y del N200 (inhibitorio). Refleja la discrepancia entre el estímulo y la plantilla del objetivo.',rules:[{key:'F',desc:'OBJETIVO — el estímulo coincide con la categoría'},{key:'J',desc:'NO OBJETIVO'},{key:'N2b',desc:'Negatividad fronto-central ~200–300 ms'},{key:'DISTINCIÓN',desc:'No espacial (N2pc), no inhibitorio (No-Go N2)'}]},
  PD:{name:'Pd — POSITIVIDAD DEL DISTRACTOR',body:'Pd — positividad contralateral ~200–300 ms ante distractores que se suprimen activamente. Imagen especular del N2pc; refleja la supresión top-down de la captura atencional.',rules:[{key:'FIJACIÓN',desc:'Fija el centro'},{key:'DISTRACTOR',desc:'Distractor saliente requiere supresión'},{key:'RESPUESTA',desc:'Sobre el objetivo central o del otro lado'},{key:'Pd',desc:'Positividad contralateral al distractor ~200–300 ms'}]},
  N300:{name:'N300 — PRIMING DE OBJETOS',body:'Prime con emoji → objetivo. Negatividad centro-occipital ~300 ms más pequeña para pares categorialmente congruentes. Refleja procesamiento categorial temprano, anterior al N400 semántico.',rules:[{key:'PRIME',desc:'Emoji 500 ms'},{key:'OBJETIVO',desc:'Emoji — de la misma categoría u otra'},{key:'F',desc:'COINCIDE de categoría'},{key:'J',desc:'NO COINCIDE'},{key:'N300',desc:'Negatividad centro-occipital ~300 ms'}]},
  P100:{name:'P100 — POTENCIAL VISUAL POR DESTELLO',body:'Destellos breves de luminancia de campo completo (~80 ms, blanco sobre fondo negro) con ISI de 1–2 s producen el P100 — un pico positivo occipital ~80–130 ms generado en la corteza visual primaria (V1). Distinto del PVEP de inicio de patrón: los destellos activan regiones retinianas más amplias y producen una respuesta más robusta pero menos específica espacialmente. Incluye ensayos catch ocasionales con destellos atenuados que requieren respuesta ESPACIO.',rules:[{key:'FIJACIÓN',desc:'Fija la cruz central — no apartes la mirada'},{key:'PASIVO',desc:'La mayoría de ensayos no requieren respuesta — solo observa'},{key:'CATCH',desc:'ESPACIO: pulsa solo cuando veas un destello ATENUADO (10% de ensayos)'},{key:'P100',desc:'Pico positivo occipital ~80–130 ms en O1/Oz/O2'},{key:'V1',desc:'Generado en V1; refleja integridad retiniana y de vía visual'}]},
  SSVEP:{name:'SSVEP',body:'Steady-State Visual Evoked Potential — manchas parpadeantes a 10 Hz (izquierda) y 15 Hz (derecha) producen picos espectrales nítidos en el EEG occipital exactamente en esas frecuencias. Usado en BCI e investigación de la atención.',rules:[{key:'FIJACIÓN',desc:'Mira la cruz central'},{key:'ATENCIÓN',desc:'Concéntrate en uno de los lados parpadeantes'},{key:'ESPECTRO',desc:'Pico a 10 Hz / 15 Hz en EEG occipital'},{key:'BCI',desc:'La atención selectiva modula la amplitud'}]},
  ERAN:{name:'ERAN — NEGATIV. ANT. DER. TEMPRANA',body:'Early Right Anterior Negativity — infracción del sintaxis musical ~150–200 ms; lateralizada a la derecha; detección de acorde fuera de lugar; análogo musical del ELAN del sintaxis del lenguaje; sensible al entrenamiento musical.',rules:[{key:'ESCUCHA',desc:'Secuencias de acordes por audífonos'},{key:'ESPERADO',desc:'Tónica o subdominante'},{key:'INFRACCIÓN',desc:'Acorde napolitano / tonalidad fuera de lugar'},{key:'ERAN',desc:'Negatividad anterior derecha ~150–200 ms'}]},
  BP:{name:'POTENCIAL DE PREPARACIÓN',body:'Bereitschaftspotential — pulsaciones voluntarias autodirigidas. Pendiente negativa lenta sobre Cz que comienza ~1500 ms ANTES del movimiento. Paradigma del libre albedrío de Libet.',rules:[{key:'ESPACIO',desc:'Pulsa cuando quieras — irregularmente'},{key:'INTERVALO',desc:'≥4 s entre pulsaciones — autorritmo'},{key:'BP',desc:'Negatividad lenta sobre Cz, inicio ~1500 ms antes del movimiento'},{key:'LIBET',desc:'Paradigma del "libre albedrío"'}]},
  LRP:{name:'LRP — POT. PREP. LATERALIZADO',body:'Lateralized Readiness Potential — tarea de "flecha izquierda/derecha". Negatividad motora contralateral ~300–500 ms indexa la preparación del movimiento específica de la mano.',rules:[{key:'F',desc:'Flecha izquierda → mano izquierda'},{key:'J',desc:'Flecha derecha → mano derecha'},{key:'LRP',desc:'Negatividad córtico-motora contralateral 300–500 ms'},{key:'MARCADOR',desc:'Preparación de respuesta manual'}]},
  CNVW:{name:'CNV — SEÑAL DE AVISO',body:'S1 (aviso) → S2 (imperativo) con intervalo de 1000 ms. La negatividad lenta del CNV crece entre ambos sobre la corteza frontal; la amplitud refleja preparación motora y expectativa temporal. Distinto del potencial de preparación.',rules:[{key:'S1',desc:'Tono de aviso'},{key:'S2',desc:'Estímulo imperativo tras 1000 ms'},{key:'ESPACIO',desc:'Responde a S2 lo más rápido posible'},{key:'CNV',desc:'Negatividad lenta entre S1 y S2 sobre la corteza frontal'}]},
  PE:{name:'Pe — POSITIVIDAD DEL ERROR',body:'Error Positivity — positividad centro-parietal ~200–400 ms tras ERN. Refleja la conciencia consciente del error; separable del ERN en anosognosia; mediada por la corteza cingulada anterior y la ínsula.',rules:[{key:'F / J',desc:'Elección forzada rápida'},{key:'ERROR',desc:'Tras una respuesta errónea'},{key:'ERN',desc:'Negatividad frontal 0–100 ms'},{key:'Pe',desc:'Positividad centro-parietal 200–400 ms — conciencia del error'}]},
  N200:{name:'N200 / NoGo N2',body:'Tarea Go/No-Go de dos alternativas; pico negativo fronto-central ~200 ms, selectivamente mayor en ensayos No-Go — refleja la supresión activa de la respuesta predominante.',rules:[{key:'F / ESPACIO',desc:'GO — responde al círculo DORADO'},{key:'STOP',desc:'NO-GO — no pulses ante el círculo AZUL'},{key:'N200',desc:'Pico negativo fronto-central ~200 ms, mayor en No-Go'},{key:'RATIO',desc:'75 % Go · 25 % No-Go'}]},
  MFN:{name:'MFN — NEGATIVIDAD FRONTAL MEDIAL',body:'Medial Frontal Negativity — negatividad fronto-central ~200–350 ms ante conflicto de respuesta y discrepancia de predicción en contextos no motores. Relacionada con la familia N2; sensible a incongruencia y violación de expectativa.',rules:[{key:'EXPECTATIVA',desc:'Estímulo predictor'},{key:'DISCREPANCIA',desc:'El final viola la predicción'},{key:'MFN',desc:'Negatividad fronto-central ~200–350 ms'},{key:'FAMILIA N2',desc:'Relacionada con ERN, N200'}]},
  P3A:{name:'P3a — NOVEDAD',body:'Oddball de tres estímulos — separa el P3a (novedad frontal) del P3b (detección de objetivo parietal). Sonidos nuevos / impredecibles raros producen P3a; los objetivos producen P3b.',rules:[{key:'ESTÁNDAR',desc:'1000 Hz (80 %)'},{key:'OBJETIVO',desc:'2000 Hz (10 %) — pulsa ESPACIO'},{key:'NOVEDAD',desc:'Sonidos nuevos aleatorios (10 %) — ignora'},{key:'P3a',desc:'Positividad frontal ante novedad ~250–350 ms'},{key:'P3b',desc:'Positividad parietal ante objetivos ~300–500 ms'}]},
  REWP:{name:'RewP / FRN',body:'Reward Positivity — ERP relacionado con la retroalimentación ~250 ms; la ganancia produce positividad, la pérdida negatividad; fuente orbitofrontal. Usado en investigación de depresión, adicciones y toma de decisiones.',rules:[{key:'ELECCIÓN',desc:'Elige una de dos puertas'},{key:'RETROALIM.',desc:'Ganancia o pérdida tras 600 ms'},{key:'RewP',desc:'Positividad fronto-central ~250 ms ante ganancia'},{key:'FRN',desc:'Mismo intervalo temporal — negatividad ante pérdida'}]},
  LPC:{name:'LPC — COMPONENTE POS. TARDÍO',body:'Late Positive Component — positividad parietal 500–800 ms durante el reconocimiento episódico. Refleja recuerdo (recollection); separable de la familiaridad (FN400); grande para ítems recordados con fiabilidad.',rules:[{key:'ANTIGUO',desc:'Ítem estudiado previamente'},{key:'NUEVO',desc:'Ítem no estudiado'},{key:'LPC',desc:'Positividad parietal 500–800 ms'},{key:'RECUERDO',desc:'Mayor para respuestas "recuerdo" fiables'}]},
  FRN:{name:'FRN — NEGATIV. DE RETROALIM.',body:'Feedback-Related Negativity — negatividad fronto-central ~200–300 ms tras resultados negativos; señal de error de predicción de recompensa; distinta del ERN (errores propios); sensible a depresión y adicciones.',rules:[{key:'ELECCIÓN',desc:'Adivina qué puerta ganará'},{key:'RETROALIM.',desc:'Ganancia o pérdida tras 600 ms'},{key:'FRN',desc:'Negatividad fronto-central ~200–300 ms ante pérdida'},{key:'SEÑAL',desc:'Error de predicción de recompensa'}]},
  SCP:{name:'SCP — POTENCIALES LENTOS',body:'Slow Cortical Potentials — desplazamientos DC sostenidos durante la carga cognitiva. Usados en neurofeedback y BCI. La regulación voluntaria de SCP es la base de los BCI clásicos de Birbaumer.',rules:[{key:'CARGA',desc:'Mantén el esfuerzo mental durante el bloque'},{key:'DESCANSO',desc:'Relájate entre bloques'},{key:'SCP',desc:'Desplazamiento DC lento — segundos'},{key:'BCI',desc:'Regulación voluntaria posible con entrenamiento'}]},
  CDA:{name:'CDA — ACTIVIDAD CONTRALAT. DEMORADA',body:'Contralateral Delayed Activity — negatividad contralateral sostenida sobre corteza posterior durante el mantenimiento de ítems visuales en memoria de trabajo. La amplitud se estabiliza al alcanzar la capacidad de MT (~3–4 ítems).',rules:[{key:'FIJACIÓN',desc:'Fija el centro'},{key:'ESTUDIO',desc:'Memoriza cuadrados de colores de un lado'},{key:'RETENCIÓN',desc:'Demora de 1 s'},{key:'CDA',desc:'Negatividad posterior contralateral durante la demora'},{key:'CAPACIDAD',desc:'Meseta a ~3–4 ítems = capacidad de MT'}]},
  THALPHA:{name:'THETA / ALFA',body:'Ritmos espontáneos del EEG en reposo. La theta frontal (4–8 Hz) aumenta con la carga cognitiva; la alfa occipital (8–13 Hz) predomina con ojos cerrados. Indicador básico del estado cortical.',rules:[{key:'OJOS',desc:'Alterna "abiertos" y "cerrados"'},{key:'ALFA',desc:'Pico occipital 8–13 Hz con ojos cerrados'},{key:'THETA',desc:'Frontal 4–8 Hz bajo carga'},{key:'ESTADO',desc:'Bloqueo alfa al abrir los ojos'}]},
  P50:{name:'P50 — FILTRADO SENSORIAL',body:'Paradigma de doble clic: dos clics auditivos con intervalo de 500 ms. El P50 ante S2 normalmente se suprime (~50 % del S1). El cociente S2/S1 indexa el filtrado sensorial; alterado en esquizofrenia.',rules:[{key:'CLICS',desc:'Pares de clics con intervalo 500 ms por audífonos'},{key:'PASIVO',desc:'No se requiere tarea activa'},{key:'P50',desc:'Pico positivo ~50 ms ante cada clic'},{key:'FILTRO',desc:'S2/S1 normalmente <0,5'}]},
  N100:{name:'N100 / P200',body:'N100 auditivo — negatividad vertex ~100 ms ante tonos; P200 — positividad ~200 ms. La amplitud refleja intensidad y habituación. Complejo auditivo cortical básico.',rules:[{key:'ESCUCHA',desc:'Serie de tonos por audífonos'},{key:'N100',desc:'Negatividad vertex ~100 ms'},{key:'P200',desc:'Positividad vertex ~200 ms'},{key:'HABITUACIÓN',desc:'La amplitud disminuye con la repetición'}]},
  LDAEP:{name:'LDAEP — DEPENDENCIA DE INTENSIDAD',body:'Loudness Dependence of Auditory Evoked Potentials — pendiente de la amplitud N1/P2 frente al volumen del tono. Una pendiente fuerte se correlaciona con baja actividad serotonérgica; usado en investigación de depresión.',rules:[{key:'ESCUCHA',desc:'Tonos en 5 niveles de volumen'},{key:'PASIVO',desc:'No se requiere tarea activa'},{key:'PENDIENTE',desc:'Amplitud N1/P2 vs volumen'},{key:'SEROTONINA',desc:'Pendiente fuerte → 5-HT bajo'}]},
  C1:{name:'C1 — COMPONENTE VISUAL TEMPRANO',body:'ERP visual más temprano, ~60–100 ms. Generado en V1 (corteza visual primaria). La polaridad depende del campo visual: positivo para campo inferior, negativo para campo superior. Marcador del procesamiento retinotópico.',rules:[{key:'FIJACIÓN',desc:'Fija el centro'},{key:'CAMPO',desc:'Estímulos en campo visual superior o inferior'},{key:'C1',desc:'Pico occipital ~60–100 ms'},{key:'FUENTE',desc:'V1 — corteza visual primaria'}]},

  // ── Pruebas sensoriales ───────────────────────────────
  SNELLEN:{name:'TABLA DE SNELLEN',body:'Cribado de agudeza visual. Tabla estándar de Snellen con letras de tamaño decreciente. Lee cada línea desde la distancia de visión; la línea más pequeña leída correctamente determina la agudeza en formato 20/X (o 6/X en sistema métrico).',rules:[{key:'DISTANCIA',desc:'Siéntate a ~3 m de la pantalla'},{key:'LEE',desc:'Pronuncia las letras de cada línea'},{key:'UMBRAL',desc:'Línea más pequeña leída correctamente'},{key:'CRIBADO',desc:'No reemplaza un examen optométrico'}]},
  ISHIHARA:{name:'TABLAS DE ISHIHARA',body:'Cribado de visión cromática para anomalía rojo-verde. Números ocultos en patrones de puntos; visibles para tricrómatas normales pero no para personas con protanopia o deuteranopia. Herramienta clásica de cribado.',rules:[{key:'OBSERVA',desc:'Identifica el número en cada lámina'},{key:'TIEMPO',desc:'~3 s por lámina'},{key:'DÉFICIT R/V',desc:'Protan / deutan — formas más comunes'},{key:'CRIBADO',desc:'No reemplaza estudio cromático completo'}]},
  SEASHORE:{name:'SEASHORE — RITMO',body:'Test de capacidades rítmicas de Seashore. Escucha pares de secuencias rítmicas; decide si son iguales o diferentes. Mide la discriminación auditiva, especialmente el procesamiento rítmico. Usado en evaluación de capacidades musicales y amusia.',rules:[{key:'ESCUCHA',desc:'Par de ritmos por audífonos'},{key:'F',desc:'IGUALES'},{key:'J',desc:'DIFERENTES'},{key:'AMUSIA',desc:'Rendimiento reducido en amusia congénita'}]},
  AUDIOM:{name:'AUDIOMETRÍA — TONO PURO',body:'Cribado de umbral auditivo. Tonos presentados a diferentes frecuencias (250 Hz – 8 kHz) e intensidades; pulsa al detectarlos. El audiograma traza el umbral por frecuencia — indicador básico de salud auditiva.',rules:[{key:'AURICULARES',desc:'Auriculares calibrados obligatorios'},{key:'SALA TRANQUILA',desc:'Minimiza el ruido de fondo'},{key:'ESPACIO',desc:'Pulsa ante cada tono detectado'},{key:'UMBRAL',desc:'Nivel más bajo detectado en cada frecuencia'}]},
  GABOR:{name:'GABOR — SENSIB. AL CONTRASTE',body:'Manchas de Gabor (rejillas sinusoidales en envoltura gaussiana) a contraste variable. Método de escalera determina el umbral de detección. Herramienta clásica para medir la función de sensibilidad al contraste.',rules:[{key:'FIJACIÓN',desc:'Fija la cruz central'},{key:'F / J',desc:'Rejilla a la izquierda o derecha'},{key:'ESCALERA',desc:'El contraste se adapta al rendimiento'},{key:'UMBRAL',desc:'~75 % de respuestas correctas'}]},

  // ── Atención y vigilancia ─────────────────────────────
  CPT:{name:'CPT — DESEMPEÑO CONTINUO',body:'Continuous Performance Test (CPT-AX) — mantenimiento de atención/vigilancia. Letras se presentan continuamente; el objetivo es X tras A. Detecta efectos del TDAH y fatiga post-TCE a lo largo del tiempo.',rules:[{key:'ESPACIO',desc:'Pulsa solo cuando X sigue inmediatamente a A'},{key:'IGNORA',desc:'Todas las demás letras y pares'},{key:'ERRORES',desc:'Omisiones (desatención) y comisiones (impulsividad)'},{key:'DURACIÓN',desc:'~10–15 min para detectar declive de vigilancia'}]},
  ATTBLINK:{name:'PARPADEO ATENCIONAL',body:'RSVP de letras; T2 se pierde cuando sigue 200–500 ms después de T1; ventana temporal de desatención tras agotamiento de recursos. Índice clásico de los límites temporales de la atención.',rules:[{key:'OBSERVA',desc:'Flujo rápido de letras en el centro'},{key:'T1',desc:'Primer objetivo — letra blanca'},{key:'T2',desc:'Segundo objetivo — letra X'},{key:'PARPADEO',desc:'T2 se pierde con lag 200–500 ms'}]},
  DUALTASK:{name:'TAREA DOBLE',body:'Monitorización simultánea de letras + seguimiento espacial; el coste de tarea doble indexa la atención dividida y el cuello de botella central. Indicador de capacidad atencional.',rules:[{key:'TAREA 1',desc:'Identifica letras objetivo'},{key:'TAREA 2',desc:'Sigue un punto en movimiento'},{key:'COSTE',desc:'Rendimiento doble vs simple'},{key:'CUELLO BOTELLA',desc:'Refleja límite del procesamiento central'}]},
  SART:{name:'SART — VIGILANCIA',body:'Sustained Attention to Response Task — responde a cada dígito excepto el 3. La tasa de comisiones indexa el vagabundeo mental; sensible a TCE y TDAH. Paradigma de "rechazo de respuesta".',rules:[{key:'ESPACIO',desc:'Pulsa ante cada dígito'},{key:'STOP',desc:'NO pulses ante 3'},{key:'COMISIONES',desc:'Errores ante 3 = vagabundeo mental'},{key:'DURACIÓN',desc:'~5 min — declives de vigilancia'}]},
  UFOV:{name:'UFOV — CAMPO VISUAL ÚTIL',body:'Useful Field of View — discriminación central + detección periférica; atención dividida; predictor de seguridad al conducir; sensible al envejecimiento y al TCE.',rules:[{key:'CENTRO',desc:'Identifica el estímulo central'},{key:'PERIFERIA',desc:'Localiza el estímulo periférico'},{key:'TIEMPO',desc:'Presentaciones breves (~100 ms)'},{key:'CONDUCCIÓN',desc:'UFOV reducido → mayor riesgo de accidentes'}]},

  // ── Memoria de trabajo y procesamiento ──────────────────
  SPATWM:{name:'MEMORIA DE TRABAJO ESPACIAL',body:'Recuerda las localizaciones de cuadrados resaltados tras una demora; distinta del span verbal; análoga al golpeteo de bloques de Corsi. Evalúa el sistema de memoria de trabajo parietal derecho.',rules:[{key:'ESTUDIO',desc:'Los cuadrados se resaltan secuencialmente'},{key:'DEMORA',desc:'Intervalo de retención breve'},{key:'REPRODUCCIÓN',desc:'Haz clic en los mismos cuadrados en orden'},{key:'AMPLITUD',desc:'Secuencia correcta más larga'}]},
  DIGCAN:{name:'CANCELACIÓN DE DÍGITOS',body:'Examina una cuadrícula de dígitos aleatorios y marca cada objetivo (p. ej. 3 y 7); número total correcto, omisiones, falsas alarmas y tiempo — indicadores de atención sostenida y velocidad de procesamiento.',rules:[{key:'CLIC',desc:'Haz clic en los objetivos (3 y 7)'},{key:'IGNORA',desc:'Todos los demás dígitos'},{key:'TIEMPO',desc:'Trabaja lo más rápido posible'},{key:'MÉTRICAS',desc:'Precisión, omisiones, falsas alarmas, tiempo'}]},
  STAR:{name:'CANCELACIÓN DE ESTRELLAS',body:'Encuentra y haz clic en cada estrella pequeña objetivo entre distractores (estrellas grandes, letras, palabras cortas); total 52 objetivos. Cribado clásico del Behavioural Inattention Test (BIT) para negligencia hemiespacial izquierda (post-ictus, lesiones). Puntuación: objetivos encontrados, asimetría (I vs D), tiempo.',rules:[{key:'CLIC',desc:'Haz clic solo en las estrellas pequeñas'},{key:'IGNORA',desc:'Estrellas grandes, letras, palabras'},{key:'ASIMETRÍA',desc:'Diferencia I/D en objetivos encontrados'},{key:'NEGLIGENCIA',desc:'Objetivos de un lado consistentemente perdidos'}]},
  TASKSWITCH:{name:'CAMBIO DE TAREA',body:'Alterna dos reglas de clasificación con señal; el coste de cambio = enlentecimiento del TR en ensayos de cambio; mide flexibilidad cognitiva y reconfiguración de tarea.',rules:[{key:'SEÑAL',desc:'El color del marco indica la regla actual'},{key:'REGLA 1',desc:'Clasifica por paridad'},{key:'REGLA 2',desc:'Clasifica por magnitud'},{key:'COSTE',desc:'TR cambio − TR repetición'}]},
  EMOTSTROOP:{name:'STROOP EMOCIONAL',body:'Nombra el color de tinta de palabras emocionales vs neutras; la interferencia afectiva enlentece el TR para palabras emocionales; mide el sesgo atencional hacia amenaza o contenido relevante para el trauma.',rules:[{key:'COLOR',desc:'Responde al COLOR DE LA TINTA'},{key:'IGNORA',desc:'El significado de la palabra'},{key:'EMOCIÓN',desc:'Palabras amenazantes/negativas enlentecen TR'},{key:'SESGO',desc:'Marcador de ansiedad, TEPT, fobias'}]},
  SUBITIZE:{name:'SUBITIZACIÓN',body:'Enumera rápidamente 1–8 puntos; pendiente plana de TR 1–4 (subitización) vs pendiente pronunciada 4+ (conteo); velocidad de procesamiento de cantidades numéricas. Distingue pensamiento prenumerico y numérico.',rules:[{key:'OBSERVA',desc:'Los puntos aparecen brevemente'},{key:'RESPUESTA',desc:'Introduce el número'},{key:'SUBITIZACIÓN',desc:'1–4: TR rápido y plano'},{key:'CONTEO',desc:'5+: TR aumenta linealmente'}]},

  // ── Funciones ejecutivas ────────────────────────────────
  TOL:{name:'TORRE DE LONDRES',body:'Mueve discos de colores para alcanzar una configuración objetivo en el mínimo de movimientos; mide planificación ejecutiva, inhibición prefrontal y resolución de problemas; sensible a disfunción del lóbulo frontal.',rules:[{key:'OBJETIVO',desc:'Alcanza la configuración mostrada'},{key:'MÍNIMO',desc:'Usa el mínimo número de movimientos'},{key:'REGLAS',desc:'Un disco por movimiento; varillas con capacidad limitada'},{key:'PLANIFICACIÓN',desc:'Planifica antes de mover'}]},
  MATRIX:{name:'RAZONAMIENTO MATRICIAL',body:'Completa el patrón; inteligencia fluida no verbal; culturalmente neutra; sensible a declive cognitivo global. Análogo a las Matrices de Raven.',rules:[{key:'OBSERVA',desc:'Matriz 3×3 con una celda faltante'},{key:'ELECCIÓN',desc:'Selecciona el elemento que completa el patrón'},{key:'REGLAS',desc:'Filas/columnas siguen transformaciones lógicas'},{key:'Gf',desc:'Marcador de inteligencia fluida'}]},
  META:{name:'METACOGNICIÓN',body:'Estimaciones de confianza sobre decisiones de memoria; d-prime de tipo 2; eficiencia metacognitiva; alterada en esquizofrenia y anosognosia. Mide la relación entre precisión y confianza.',rules:[{key:'ESTUDIO',desc:'Memoriza palabras'},{key:'PRUEBA',desc:'¿ANTIGUA o NUEVA?'},{key:'CONFIANZA',desc:'Califica confianza 1–6'},{key:'d′2',desc:'Diferencia TR para correctas seguras vs errores'}]},

  // ── Velocidad de procesamiento ──────────────────────────
  SYMSEARCH:{name:'BÚSQUEDA DE SÍMBOLOS',body:'Subtest del WAIS-IV — examina una fila de símbolos y decide si aparece alguno de dos objetivos; índice de velocidad de procesamiento junto con codificación dígito-símbolo.',rules:[{key:'OBJETIVO',desc:'Dos símbolos objetivo a la izquierda'},{key:'BÚSQUEDA',desc:'5 símbolos a la derecha'},{key:'SÍ / NO',desc:'¿Aparece algún objetivo entre los 5?'},{key:'VELOCIDAD',desc:'120 s — haz tantos como puedas'}]},
  PASAT:{name:'PASAT',body:'Paced Auditory Serial Addition Test — dígitos individuales presentados a velocidad fija; suma cada nuevo dígito al inmediatamente anterior; mide atención dividida, actualización de MT y velocidad de procesamiento; estándar en evaluación de EM y TCE.',rules:[{key:'ESCUCHA',desc:'Dígitos individuales por audífonos'},{key:'SUMA',desc:'Añade el actual al ANTERIOR (no a la suma acumulada)'},{key:'RITMO',desc:'Un dígito cada 3 s (o 2 s)'},{key:'ESTÁNDAR',desc:'Usado en escala MSFC de EM'}]},

  // ── Memoria ─────────────────────────────────────────────
  RAVLT:{name:'RAVLT — APRENDIZAJE VERBAL',body:'Rey Auditory Verbal Learning Test — lista de 15 palabras leída 5 veces; lista de interferencia; recuerdo inmediato; recuerdo demorado a 20 min; curva de aprendizaje, efectos de primacía/recencia, interferencia proactiva, retención — estándar de oro de evaluación de memoria verbal.',rules:[{key:'5 ENSAYOS',desc:'Misma lista 5 veces'},{key:'INTERFER.',desc:'Lista B — una vez, distractor'},{key:'DEMORA',desc:'Recuerdo tras 20 min'},{key:'RECONOC.',desc:'Ensayo final de reconocimiento'}]},
  CVLT:{name:'CVLT — APRENDIZAJE CALIFORNIA',body:'California Verbal Learning Test — "lista de la compra" de 16 palabras de 4 categorías semánticas; 5 ensayos de aprendizaje; recuerdo libre y dirigido demorado corto y largo; reconocimiento; mide curva de aprendizaje, agrupamiento semántico, posición serial y retención.',rules:[{key:'5 ENSAYOS',desc:'Misma lista 5 veces'},{key:'CATEGORÍAS',desc:'4 categorías semánticas, encubiertas'},{key:'AGRUPAM.',desc:'Agrupamiento semántico espontáneo'},{key:'PISTAS',desc:'Recuerdo dirigido por categoría'}]},
  PAL:{name:'APRENDIZAJE DE PARES ASOCIADOS',body:'Estudia pares palabra-palabra; recuerdo dirigido; mide la unión asociativa hipocampal; sensible a enfermedad de Alzheimer temprana.',rules:[{key:'ESTUDIO',desc:'Pares de palabras presentados juntos'},{key:'PRUEBA',desc:'Primera palabra → escribe la segunda'},{key:'HIPOCAMPO',desc:'Unión depende del MTL'},{key:'MARCADOR EA',desc:'Declive temprano en enfermedad de Alzheimer'}]},
  SRCMEM:{name:'MEMORIA DE FUENTE',body:'Memoriza no solo qué sino dónde lo aprendiste; función del lóbulo frontal; separa recuerdo de familiaridad. Evalúa no el ítem en sí sino su contexto.',rules:[{key:'ESTUDIO',desc:'Palabras en dos fuentes/colores distintos'},{key:'¿ANTIGUO?',desc:'Primero: ¿viste la palabra?'},{key:'¿FUENTE?',desc:'Luego: ¿qué fuente/color?'},{key:'FRONTAL',desc:'Lesiones frontales reducen la memoria de fuente'}]},
  PROSMEM:{name:'MEMORIA PROSPECTIVA',body:'Recuerda que debes pulsar una tecla cuando aparezca un objetivo durante una tarea en curso; a menudo alterada en TCE y envejecimiento. "Memoria de intenciones".',rules:[{key:'EN CURSO',desc:'Realiza decisión léxica'},{key:'INTENCIÓN',desc:'Cuando aparezca "BARCO" — pulsa Q'},{key:'OCASIONAL',desc:'El objetivo es raro (~5 %)'},{key:'MEM. PLANES',desc:'Función prefrontal'}]},
  SEMFLUENCY:{name:'FLUIDEZ SEMÁNTICA',body:'Nombra todos los animales/comidas/herramientas que puedas en 60 s; el total y los indicadores de agrupamiento indexan la integridad de los lóbulos frontal/temporal.',rules:[{key:'60 SEGUNDOS',desc:'Nombra todos los que puedas'},{key:'CATEGORÍA',desc:'P. ej.: animales'},{key:'AGRUPAM.',desc:'Grupos semánticamente relacionados'},{key:'CAMBIO',desc:'Transiciones entre subcategorías'}]},
  PHONFLUE:{name:'FLUIDEZ FONÉMICA (FAS)',body:'Nombra todas las palabras que comiencen por F, luego A, luego S, en 60 s cada una; la fluidez fonémica indexa integridad del lóbulo frontal y velocidad de acceso léxico; distinta de la fluidez semántica.',rules:[{key:'60 SEGUNDOS',desc:'Por cada letra'},{key:'LETRAS',desc:'F, luego A, luego S'},{key:'EXCLUSIONES',desc:'Sin nombres propios ni de la misma raíz'},{key:'FRONTAL',desc:'Sensible a disfunción frontal'}]},

  // ── Lenguaje y léxico ───────────────────────────────────
  LEXDEC:{name:'DECISIÓN LÉXICA',body:'¿Palabra o no-palabra? lo más rápido posible; el TR depende de la frecuencia de la palabra, la imaginabilidad y el tamaño del vecindario ortográfico. Tarea estándar de psicolingüística.',rules:[{key:'F',desc:'PALABRA'},{key:'J',desc:'NO-PALABRA'},{key:'VELOCIDAD',desc:'Responde rápido'},{key:'FRECUENCIA',desc:'Palabras frecuentes → más rápidas'}]},
  BNT:{name:'TEST DE DENOMINACIÓN DE BOSTON',body:'Nombra dibujos lineales de objetos; dificultad graduada; sensible a daño del lóbulo temporal y enfermedad de Alzheimer. Estándar de oro de evaluación de la denominación.',rules:[{key:'MICRÓFONO',desc:'Activa el micrófono'},{key:'NOMBRE',desc:'Di el nombre del objeto en voz alta'},{key:'GRADACIÓN',desc:'De fácil a difícil'},{key:'CRITERIO',desc:'6 fallos consecutivos = parada'}]},

  // ── Visuoespaciales ─────────────────────────────────────
  JLO:{name:'JUICIO DE ORIENTACIÓN DE LÍNEAS',body:'Judgment of Line Orientation (JLO, Benton) — empareja dos segmentos angulares con un abanico de referencia de 11 líneas; mide percepción visuoespacial; función del lóbulo parietal derecho; sensible a negligencia hemiespacial y lesiones parietales.',rules:[{key:'ABANICO',desc:'11 líneas, numeradas 1–11'},{key:'EMPAREJA',desc:'Encuentra las 2 líneas arriba que correspondan'},{key:'PARIETAL',desc:'Sensible a corteza parietal derecha'},{key:'NEGLIGENCIA',desc:'Sesgo sistemático hacia el lado izquierdo'}]},
  TOJ:{name:'JUICIO DE ORDEN TEMPORAL',body:'¿Qué estímulo apareció primero?; estimación del JND por método de escalera; sensible a disfunción temporal de ganglios basales y cerebelo. Marcador de cronestesia.',rules:[{key:'DOS ESTÍMULOS',desc:'Izquierda y derecha con pequeño SOA'},{key:'F',desc:'PRIMERO EL IZQUIERDO'},{key:'J',desc:'PRIMERO EL DERECHO'},{key:'ESCALERA',desc:'SOA converge al 75 % de precisión'}]},

  // ── Cognición social ────────────────────────────────────
  RMET:{name:'LECTURA DE LA MENTE EN LOS OJOS',body:'Reading the Mind in the Eyes (Baron-Cohen) — infiere el estado mental a partir de fotografías de la región de los ojos; elección forzada de 4 alternativas; mide teoría de la mente / cognición social; alterada en TEA, alexitimia y lesiones frontales.',rules:[{key:'OBSERVA',desc:'Solo la región de los ojos'},{key:'4 OPCIONES',desc:'Elige uno de 4 estados mentales'},{key:'ToM',desc:'Teoría de la mente / mentalización'},{key:'AUTISMO',desc:'Rendimiento reducido en TEA'}]},
  FER:{name:'RECONOCIM. DE EMOCIONES FACIALES',body:'Identifica seis emociones básicas; procesamiento afectivo dependiente de la amígdala; alterado en lesiones amigdalinas y depresión.',rules:[{key:'OBSERVA',desc:'La cara expresa una de 6 emociones'},{key:'6 EMOCIONES',desc:'Alegría, tristeza, ira, miedo, asco, sorpresa'},{key:'AMÍGDALA',desc:'Especialmente miedo e ira'},{key:'DEPRESIÓN',desc:'Sesgo hacia emociones negativas'}]},

  // ── Toma de decisiones ──────────────────────────────────
  IGT:{name:'TAREA DE APUESTAS DE IOWA',body:'Elige de cuatro barajas; favorables (C/D) vs desfavorables (A/B); mide la función del marcador somático / corteza prefrontal ventromedial; alterada en adicciones, lesiones vmPFC y psicopatía.',rules:[{key:'4 BARAJAS',desc:'A, B, C, D — distribuciones ocultas'},{key:'DECISIÓN',desc:'Elige una baraja por turno'},{key:'RETROALIM.',desc:'Ganancia + pérdida aleatoria'},{key:'MARC. SOMÁT.',desc:'Los sanos cambian a C/D con el tiempo'}]},

  // ── Escalas de cribado ──────────────────────────────────
  MOCA:{name:'MoCA — EVALUACIÓN COGNITIVA DE MONTREAL',body:'Montreal Cognitive Assessment — el instrumento de cribado cognitivo breve más utilizado, desarrollado por Nasreddine et al. (2005). Evalúa diez dominios cognitivos en ~10 minutos. Máximo 30 puntos; <26 es cribado positivo de deterioro cognitivo leve.',rules:[{key:'DOMINIOS',desc:'10: visuoespacial, denominación, memoria, atención, lenguaje, abstracción, orientación'},{key:'PUNTUACIÓN',desc:'Total /30 — ≥26 normal; <26 positivo'},{key:'TIEMPO',desc:'~10 minutos'},{key:'EDUCACIÓN',desc:'+1 punto si ≤12 años de educación formal'}]},
  CDT:{name:'TEST DEL DIBUJO DEL RELOJ',body:'Dibuja un reloj que muestre las 11:10; cribado clásico de demencia, disfunción ejecutiva, negligencia hemiespacial, apraxia constructiva. Usado en MoCA, MMSE-2, Mini-Cog. Versión en navegador captura datos completos de trazo + tiempo de ejecución para puntuación manual (escala Shulman 6 puntos o Sunderland 10 puntos).',rules:[{key:'DIBUJA',desc:'Esfera del reloj con todos los números'},{key:'HORA',desc:'Coloca las agujas en 11:10'},{key:'PUNTUACIÓN',desc:'Shulman 6 puntos o Sunderland 10 puntos'},{key:'TRAZOS',desc:'Se guardan datos completos de trazado'}]},
  PHQ9:{name:'PHQ-9 — DEPRESIÓN',body:'PHQ-9 (Kroenke et al., 2001) — el cribado breve de depresión más validado. Nueve ítems se corresponden con criterios DSM-5 de episodio depresivo mayor; calificación 0–3 durante las últimas dos semanas. Una puntuación ≥10 tiene sensibilidad del 88 % y especificidad del 88 % para depresión mayor. Dominio público.',rules:[{key:'2 SEMANAS',desc:'Califica cuán a menudo te ha molestado el problema en 2 semanas'},{key:'0–3',desc:'0=nada / 1=algunos días / 2=más de la mitad / 3=casi todos los días'},{key:'UMBRAL',desc:'Total ≥10 = cribado positivo'},{key:'ÍTEM 9',desc:'Ideación suicida — seguimiento clínico'},{key:'MONITOR',desc:'Un cambio de 5 puntos es clínicamente significativo'}]},
  GAD7:{name:'GAD-7 — ANSIEDAD',body:'GAD-7 (Spitzer et al., 2006) — cribado del trastorno de ansiedad generalizada y de la severidad de la ansiedad. Siete ítems 0–3 durante las últimas dos semanas. Una puntuación ≥10 tiene sensibilidad del 89 % y especificidad del 82 % para TAG; también criba pánico, ansiedad social y TEPT eficazmente. Dominio público.',rules:[{key:'2 SEMANAS',desc:'Califica las últimas 2 semanas'},{key:'0–3',desc:'0=nada / 1=algunos días / 2=más de la mitad / 3=casi todos los días'},{key:'UMBRAL',desc:'≥10 = cribado positivo'},{key:'AMPLIO',desc:'TAG, pánico, ansiedad social, TEPT'},{key:'MONITOR',desc:'Sigue la respuesta al tratamiento'}]},
  PCL5:{name:'PCL-5 — TEPT',body:'PCL-5 (Weathers et al., 2013) — gravedad de síntomas de TEPT según DSM-5. Veinte ítems cubren intrusión (5), evitación (2), cognición/estado de ánimo negativos (7) y excitación/reactividad (6). Cada uno se califica 0–4 durante el último mes. Habitualmente se usa ≥33 para cribado positivo. Dominio público.',rules:[{key:'MES',desc:'Califica durante el último mes'},{key:'0–4',desc:'0=nada / ... / 4=extremadamente'},{key:'UMBRAL',desc:'Total ≥33 = probable TEPT'},{key:'CLÚSTERES',desc:'Intrusión / evitación / cognición-ánimo / excitación'},{key:'DSM-5',desc:'La puntuación por clúster da un diagnóstico provisional'}]},
  AUDIT:{name:'AUDIT — CONSUMO DE ALCOHOL',body:'AUDIT (Saunders et al., 1993, OMS) — estándar de oro de cribado de trastornos por uso de alcohol. Diez ítems: consumo (1–3), dependencia (4–6), daño (7–10). Puntuación 0–7 riesgo bajo; 8–15 peligroso; 16–19 perjudicial; 20+ probable dependencia. Dominio público.',rules:[{key:'AÑO',desc:'Califica los últimos 12 meses'},{key:'UNIDAD',desc:'≈10 g de etanol (1 cerveza / 1 copa de vino)'},{key:'UMBRAL',desc:'≥8 — consumo peligroso / perjudicial'},{key:'ZONAS',desc:'I (bajo) / II (peligroso) / III (perjudicial) / IV (dependencia)'},{key:'OMS',desc:'Estándar global'}]},
  ASRS:{name:'ASRS — TDAH EN ADULTOS',body:'ASRS-v1.1 (Kessler et al., 2005) — cribado del TDAH adulto. Contiene 18 preguntas que se corresponden con los criterios DSM-IV de TDAH, calificadas 0–4 durante los últimos 6 meses. La Parte A (preguntas 1–6) es un cribado breve validado; ≥4 de 6 ítems en el rango sombreado = cribado positivo (sensibilidad 68,7 %, especificidad 99,5 %). Dominio público.',rules:[{key:'6 MESES',desc:'Califica los últimos 6 meses'},{key:'PARTE A',desc:'Preguntas 1–6 — cribado validado'},{key:'UMBRAL',desc:'≥4 de 6 en rango sombreado = positivo'},{key:'AMBOS TIPOS',desc:'Inatención e hiperactividad-impulsividad'},{key:'ADULTOS',desc:'No para niños — escalas pediátricas distintas'}]},
  HACHINSKI:{name:'ESCALA ISQUÉMICA DE HACHINSKI',body:'Hachinski Ischemic Score (Hachinski, Iliff, Zilhka et al., 1975, Arch Neurol 32:632–637) — lista de comprobación de 13 ítems completada por el clínico para diferenciar la demencia multiinfarto (vascular) de la demencia tipo Alzheimer. Cada ítem se puntúa como presente (1 o 2 puntos) o ausente (0). Rango total 0–18. ≤4 → degenerativa primaria; 5–6 → mixta; ≥7 → multiinfarto.',rules:[{key:'CLÍNICO',desc:'Se completa con historia del paciente e informador'},{key:'13 ÍTEMS',desc:'Presente = 1 o 2 puntos; ausente = 0'},{key:'PESOS',desc:'2 puntos: inicio súbito, fluctuación, ictus, síntomas/signos focales'},{key:'UMBRALES',desc:'≤4 = tipo EA; 5–6 = mixta; ≥7 = multiinfarto'},{key:'AYUDA',desc:'Usar junto con neuroimagen'}]},
  KATZ:{name:'ÍNDICE DE KATZ — AVD BÁSICAS',body:'Katz Index (Katz et al., 1963, JAMA 185:914–919) — la medida más utilizada de actividades básicas de la vida diaria. Seis ítems — baño, vestido, baño, traslado, continencia y alimentación — cada uno puntuado 1 (independiente) o 0 (dependiente). Total 0–6. La escala de Katz capta las capacidades fundamentales de autocuidado, que declinan tarde en la demencia y la progresión de la discapacidad.',rules:[{key:'CLÍNICO',desc:'Puntuado por clínico o informador'},{key:'6 ÍTEMS',desc:'Baño · Vestido · Baño · Traslado · Continencia · Alimentación'},{key:'BINARIO',desc:'1 (independiente) o 0 (dependiente / necesita ayuda)'},{key:'ESCALA',desc:'6 = función completa · 4 = moderado · ≤2 = grave deterioro'},{key:'EMPAREJADO',desc:'A menudo combinado con Lawton AIVD'}]},
  LAWTON:{name:'ÍNDICE DE LAWTON — AIVD',body:'Lawton IADL Scale (Lawton & Brody, 1969, Gerontologist 9:179–186) — mide actividades instrumentales de orden superior necesarias para la vida independiente en comunidad. Ocho ítems — teléfono, compras, preparación de comida, cuidado del hogar, lavandería, transporte, medicación y finanzas — cada uno 0 o 1. Puntuación unisex moderna 0–8 (más bajo = más alterado). El declive de AIVD típicamente precede al declive de AVD básicas por años en demencia.',rules:[{key:'CLÍNICO',desc:'Puntuado por observación o informe del informador'},{key:'8 ÍTEMS',desc:'Teléfono · Compras · Cocinar · Casa · Lavandería · Transporte · Medicación · Finanzas'},{key:'0–8',desc:'Cada ítem 0 (dependiente) o 1 (independiente)'},{key:'MARC. TEMPRANO',desc:'El declive AIVD precede al declive AVD básicas'},{key:'EMPAREJADO',desc:'A menudo combinado con Katz AVD'}]},
  SPR:{name:'RECONOCIMIENTO DE SONDA SERIAL',body:'Reconocimiento de sonda serial visual — el paradigma de Sands y Wright (1980, Science 209:938; JEP:ABP 6:386). Se presenta una lista de N elementos distintos uno a la vez, seguida de una sonda única. El sujeto juzga si la sonda estaba en la lista. Con estímulos únicos por ensayo la función de posición serial muestra primacía y recencia clásicas, reflejando la comparación clásica mono/humano. Estímulos de formas procedurales por defecto; cargue su propio conjunto de imágenes mediante el botón ⚛ IMÁGENES PERSONALIZADAS de la barra lateral.',rules:[{key:'ESTUDIO',desc:'Observe N elementos mostrados uno a la vez (por defecto: 10 luego 20)'},{key:'SONDA',desc:'Aparece un elemento tras el intervalo de retención'},{key:'F / ←CLIC',desc:'SÍ — la sonda estaba en la lista'},{key:'J / →CLIC',desc:'NO — la sonda no estaba en la lista'},{key:'POSICIÓN',desc:'Las sondas muestrean todas las posiciones por igual'},{key:'SALIDA',desc:'Función de posición serial · d-prima · TR'}]},
  'SPR-A':{name:'RECONOCIMIENTO DE SONDA SERIAL (AUDITIVO)',body:'Análogo auditivo del paradigma de sonda serial de Sands y Wright. Se presenta secuencialmente una lista de N estímulos sonoros distintos, luego se reproduce una sonda. El sujeto juzga si la sonda estaba en la lista. Requiere archivos de sonido cargados por el usuario: abra ♬ AUDIO PERSONALIZADO desde la barra lateral y añada al menos 8 archivos al grupo SPR-A.',rules:[{key:'CARGAR',desc:'Cargue ≥8 sonidos vía ♬ AUDIO PERSONALIZADO → GRUPO SPR-A'},{key:'ESCUCHAR',desc:'Escuche N sonidos uno a la vez'},{key:'SONDA',desc:'Un sonido se reproduce tras el intervalo de retención'},{key:'F / ←CLIC',desc:'SÍ — la sonda estaba en la lista'},{key:'J / →CLIC',desc:'NO — la sonda no estaba en la lista'},{key:'SALIDA',desc:'Función de posición serial · d-prima · TR'}]},
  MTS:{name:'EMPAREJAMIENTO CON LA MUESTRA',body:'Emparejamiento con la muestra — el paradigma de discriminación de Wright, Santiago, Sands et al. Se presenta un estímulo muestra, luego aparece un conjunto de 2–4 estímulos de comparación; el sujeto elige la comparación que coincide con la muestra. En MTS simultáneo la muestra permanece visible al elegir; en MTS demorado (DMTS) la muestra se retira y un intervalo de retención interviene antes de las comparaciones, evaluando la memoria a corto plazo. Usa las mismas formas procedurales o el grupo ⚛ IMÁGENES PERSONALIZADAS que SPR.',rules:[{key:'MUESTRA',desc:'Aparece un único estímulo muestra'},{key:'COMPARACIONES',desc:'Aparecen 2–4 opciones (una coincide)'},{key:'ELEGIR',desc:'Clic en la coincidencia, o pulse 1 / 2 / 3 / 4'},{key:'SIMULTÁNEO',desc:'La muestra permanece visible al elegir'},{key:'DEMORADO (DMTS)',desc:'Muestra oculta + intervalo de retención'},{key:'SALIDA',desc:'Precisión · TR · transferencia de concepto'}]}
};


const PARADIGMS_FR={
  PRL:{name:"APPRENTISSAGE PAR INVERSION PROBABILISTE",body:"Choisissez entre deux stimuli avec récompense 80/20 ; le meilleur s'inverse sans prévenir. Mesure la flexibilité fondée sur la récompense et le suivi du feedback (FRN/RewP).",rules:[{key:"F / J",desc:"Choisissez le stimulus de GAUCHE (F) ou de DROITE (J)"},{key:"80 / 20",desc:"Le bon est récompensé ~80%, le mauvais ~20%"},{key:"INVERSION",desc:"Les stimuli bon et mauvais s'échangent sans prévenir"},{key:"GAGNE-RESTE",desc:"Une seule perte ne signifie pas un mauvais choix"},{key:"MESURES",desc:"Précision, inversions, erreurs persévératives, gagne-reste/perd-change"}]},
  DD:{name:"DÉVALUATION TEMPORELLE",body:"Choix répétés entre une récompense plus petite-tôt et une plus grande-tardive (1000 $) ; un escalier trouve le point d'indifférence à chaque délai, donnant le k hyperbolique et l'aire sous la courbe. Mesure l'impulsivité.",rules:[{key:"F / J",desc:"Choisissez l'option de GAUCHE (F) ou de DROITE (J)"},{key:"MAINTENANT vs PLUS TARD",desc:"Un montant moindre maintenant ou 1000 $ après un délai"},{key:"PAS DE BONNE RÉPONSE",desc:"Choisissez l'option que vous préférez vraiment"},{key:"DÉLAIS",desc:"Le délai croît de jours à années"},{key:"MESURES",desc:"k hyperbolique, ln(k), aire sous la courbe, % immédiat"}]},
  SRTT:{name:"TEMPS DE RÉACTION SÉRIEL",body:"Appuyez sur la touche de la case allumée ; les positions suivent en secret une séquence répétée, donc les réponses s'accélèrent à mesure qu'elle est apprise. Un bloc aléatoire révèle l'apprentissage.",rules:[{key:"D F J K",desc:"Chaque case a une touche — appuyez sur celle qui s'allume"},{key:"SOYEZ RAPIDE",desc:"Répondez vite et avec précision"},{key:"SÉQUENCE CACHÉE",desc:"Les positions suivent un motif répété"},{key:"BLOC ALÉATOIRE",desc:"Un bloc est aléatoire — le TR monte si vous l'avez apprise"},{key:"MESURES",desc:"TR par bloc, effet d'apprentissage, précision"}]},
  BART:{name:"TÂCHE DU BALLON (BART)",body:"Gonflez un ballon pour de l'argent ; chaque pompe ajoute une récompense mais augmente le risque d'éclatement. Encaissez quand vous voulez ; s'il éclate, vous perdez ce ballon. La moyenne ajustée des pompes mesure la prise de risque.",rules:[{key:"POMPER (F)",desc:"Gonflez le ballon — chaque pompe ajoute argent et risque"},{key:"ENCAISSER (J)",desc:"Gardez l'argent du ballon courant et continuez"},{key:"ÉCLATEMENT",desc:"S'il éclate avant l'encaissement, l'argent est perdu"},{key:"COMPROMIS",desc:"Plus de récompense exige plus de pompes, donc plus de risque"},{key:"MESURES",desc:"Pompes ajustées, total gagné, éclatements"}]},
  OSPAN:{name:"EMPAN OPÉRATOIRE",body:"Alternez juger une courte équation (vrai/faux) et mémoriser une lettre, puis rappelez les lettres dans l'ordre. La mesure de référence de la capacité de mémoire de travail complexe.",rules:[{key:"ÉQUATION",desc:"Décidez si le calcul est correct — VRAI (T) / FAUX (F)"},{key:"LETTRE",desc:"Après chaque équation, retenez la lettre affichée"},{key:"RAPPEL",desc:"À la fin, cliquez les lettres dans leur ordre initial"},{key:"SUIVEZ LE RYTHME",desc:"Répondez vite — ne vous arrêtez pas pour répéter"},{key:"MESURES",desc:"Score partiel et absolu, précision du calcul"}]},
  TBIS:{name:"BISSECTION TEMPORELLE",body:"Apprenez une durée étalon COURTE et une LONGUE, puis jugez si chaque flash est plus proche du COURT ou du LONG. Donne le point de bissection et le ratio de Weber ; implique la CNV.",rules:[{key:"APPRENEZ",desc:"Observez d'abord les étalons COURT et LONG"},{key:"JUGEZ",desc:"Le flash était-il plus COURT (F) ou plus LONG (J) ?"},{key:"SANS FEEDBACK",desc:"Les essais ne donnent pas de feedback — fiez-vous à votre perception"},{key:"NE COMPTEZ PAS",desc:"Les durées sont brèves — jugez à l'instinct"},{key:"MESURES",desc:"Point de bissection, ratio de Weber, courbe proportion-long"}]},

  GNG:{name:"VA / N'Y VA PAS",body:"La t\u00e2che Go/No-Go mesure l'inhibition de la r\u00e9ponse \u2014 votre capacit\u00e9 \u00e0 supprimer une action pr\u00e9potente. Un stimulus appara\u00eet au centre \u00e0 chaque essai. R\u00e9pondez rapidement aux stimuli Go (\u25cf) et retenez toute r\u00e9ponse aux stimuli No-Go (\u25cb).",rules:[{key:"F / ESPACE",desc:"ALLER \u2014 r\u00e9pondre au stimulus cible"},{key:"J",desc:"NE PAS ALLER \u2014 retenir la r\u00e9ponse"},{key:"\u25cf (plein)",desc:"ALLER \u2014 r\u00e9pondre le plus vite possible"},{key:"\u25cb (vide)",desc:"NE PAS ALLER \u2014 ne pas r\u00e9pondre"},{key:"D\u00c9LAI",desc:"Sans r\u00e9ponse en 1,5 s, comptabilis\u00e9 comme retenue"},{key:"PROPORTION",desc:"70\u202f% essais Go \xb7 30\u202f% essais No-Go"}]},
  NBACK:{name:"N-EN-ARRI\u00c8RE (1-en-arri\u00e8re)",body:"La t\u00e2che N-en-arri\u00e8re mesure la mise \u00e0 jour de la m\u00e9moire de travail. Une lettre appara\u00eet \u00e0 chaque essai. D\u00e9cidez si la lettre actuelle correspond \u00e0 celle pr\u00e9sent\u00e9e exactement un essai auparavant.",rules:[{key:"F / ESPACE",desc:"CORRESPONDANCE \u2014 la lettre correspond N essais en arri\u00e8re"},{key:"J",desc:"NON CORRESPONDANCE \u2014 la lettre ne correspond pas"},{key:"PREMIER ESSAI",desc:"Aucune r\u00e9ponse correcte possible \u2014 observez simplement"},{key:"TAUX",desc:"~35\u202f% des essais sont des correspondances"}]},
  SPATIAL:{name:"ATTENTION SPATIALE",body:"Mesure le traitement visuospatial et l'attention s\u00e9lective. \u00c0 chaque essai, une cellule d'une grille 3\u00d73 est mise en \u00e9vidence. Cliquez sur la cellule en surbrillance le plus rapidement possible.",rules:[{key:"CLIC",desc:"Cliquez sur la cellule en surbrillance le plus vite possible"},{key:"PR\u00c9CISION",desc:"Cliquer sur la mauvaise cellule compte comme une erreur"},{key:"D\u00c9LAI",desc:"Sans r\u00e9ponse en 1,5 s, enregistr\u00e9 comme omission"}]},
  POSNER:{name:"PARADIGME POSNER",body:"Mesure l'attention spatiale couverte. Un indice oriente l'attention vers l'emplacement probable d'une cible. Les TR plus rapides pour les essais valides r\u00e9v\u00e8lent le b\u00e9n\u00e9fice attentionnel.",rules:[{key:"ESPACE / F",desc:"R\u00e9pondre lorsque la cible appara\u00eet"},{key:"ENDOG\u00c8NE",desc:"Fl\u00e8che centrale \u2014 d\u00e9placement volontaire de l'attention"},{key:"EXOG\u00c8NE",desc:"Flash p\u00e9riph\u00e9rique \u2014 capture automatique et r\u00e9flexive"},{key:"B\u00c9N\u00c9FICE",desc:"B\u00e9n\u00e9fice = TR invalide \u2212 TR valide"}]},
  VRT:{name:"RECONNAISSANCE VISUELLE",body:"Mesure la m\u00e9moire \u00e9pisodique visuelle. Des motifs g\u00e9om\u00e9triques abstraits sont pr\u00e9sent\u00e9s \u00e0 l'\u00e9tude. Apr\u00e8s un intervalle de r\u00e9tention, des paires de motifs appara\u00eessent \u2014 un \u00e9tudi\u00e9 et un nouveau. Identifiez celui que vous avez vu.",rules:[{key:"\u00c9TUDE",desc:"Observez la matrice de motifs \u2014 4 secondes par ensemble"},{key:"TEST",desc:"Deux motifs appara\u00eessent \u2014 cliquez sur celui \u00e9tudi\u00e9"},{key:"M\u00c9TRIQUES",desc:"Taux de d\u00e9tection, fausses alarmes, d\u2019 et TR"}]},
  CSR:{name:"INVERSION DE CONTRASTE",body:"Un damier inverse sa polarit\u00e9 \u00e0 un rythme constant. La plupart des inversions sont standard. Une petite proportion sont des inversions CIBLES \u2014 une rotation de 45\u00b0 pendant un cycle. R\u00e9pondez d\u00e8s que vous d\u00e9tectez le changement.",rules:[{key:"ESPACE",desc:"Appuyez lorsque vous d\u00e9tectez une inversion CIBLE (pivot\u00e9e)"},{key:"OBSERVEZ",desc:"Le damier inverse continuellement \u2014 maintenez la fixation"},{key:"STANDARD",desc:"La plupart des inversions sont standard \u2014 NE PAS r\u00e9pondre"},{key:"CIBLE",desc:"Rotation occasionnelle de 45\u00b0 \u2014 appuyez sur ESPACE imm\u00e9diatement"}]},
  P300:{name:"P300 AUDITIF",body:"Le paradigme oddball auditif \u00e9licite la composante P300. Un flux de tons standard fr\u00e9quents est pr\u00e9sent\u00e9 avec de rares tons oddball intercal\u00e9s. D\u00e9tectez le ton oddball et appuyez sur ESPACE. Standard\u202f: 1000\u202fHz ; Oddball\u202f: 2000\u202fHz. Probabilit\u00e9\u202f: 20\u202f%.",rules:[{key:"ESPACE",desc:"Appuyez sur le ton RARE (aigu)"},{key:"STANDARD",desc:"1000\u202fHz (fr\u00e9quent) \u2014 NE PAS r\u00e9pondre"},{key:"ODDBALL",desc:"2000\u202fHz (rare, 20\u202f%) \u2014 appuyez sur ESPACE"},{key:"CASQUE",desc:"Utilisez un casque pour une meilleure discrimination"}]},
  STB:{name:"M\u00c9MOIRE STERNBERG",body:"Mesure la vitesse de recherche en m\u00e9moire de travail verbale. Un ensemble de lettres est pr\u00e9sent\u00e9 UNE \u00c0 LA FOIS \u2014 1\u202fs chacune. Apr\u00e8s un intervalle de r\u00e9tention, une lettre sonde appara\u00eet. R\u00e9pondez OUI si elle \u00e9tait dans l'ensemble.",rules:[{key:"F / ESPACE",desc:"OUI \u2014 la lettre sonde \u00c9TAIT dans l'ensemble"},{key:"J",desc:"NON \u2014 la lettre sonde N'\u00c9TAIT PAS dans l'ensemble"},{key:"\u00c9TUDE",desc:"Les lettres appara\u00eessent UNE \u00c0 LA FOIS \u2014 1\u202fs chacune"},{key:"VITESSE",desc:"R\u00e9pondez le plus vite et pr\u00e9cis\u00e9ment possible"}]},
  WCST:{name:"TRI DE CARTES (WCST)",body:"Bas\u00e9 sur le Wisconsin Card Sorting Test. Une carte stimulus doit \u00eatre associ\u00e9e \u00e0 une carte cible selon une r\u00e8gle \u2014 couleur, forme ou nombre. La r\u00e8gle n'est jamais communiqu\u00e9e et change apr\u00e8s 10 tris corrects cons\u00e9cutifs.",rules:[{key:"CLIC",desc:"Cliquez sur une carte cible pour trier la carte stimulus"},{key:"R\u00c8GLES",desc:"Trois r\u00e8gles possibles\u202f: couleur \xb7 forme \xb7 nombre de symboles"},{key:"CHANGEMENT",desc:"La r\u00e8gle change silencieusement apr\u00e8s 10 bonnes r\u00e9ponses"},{key:"PERSEV.",desc:"Erreur pers\u00e9v\u00e9rative = suivre l'ancienne r\u00e8gle apr\u00e8s le changement"}]},
  RECALL:{name:"RECONNAISSANCE DE MOTS",body:"Mesure la mémoire épisodique par reconnaissance (plus facile à répondre que le rappel libre). Une liste de mots courants est étudiée un par un. Après une tâche distractrice, des mots sont présentés un par un : certains étaient dans la liste (ANCIEN) et d'autres sont nouveaux (NOUVEAU). Décidez si vous avez vu chaque mot pendant l'étude. Réussites, fausses alarmes et d′ sont enregistrés.",rules:[{key:"F = ANCIEN",desc:"Appuyez sur F si le mot ÉTAIT dans la liste"},{key:"J = NOUVEAU",desc:"Appuyez sur J si le mot N'ÉTAIT PAS dans la liste"},{key:"ÉTUDE",desc:"Lisez chaque mot attentivement — 2 secondes chacun"},{key:"DISTRACTEUR",desc:"Résolvez des problèmes d'arithmétique pendant 30 s"}]},
  TMT:{name:"TEST DE TRAC\u00c9",body:"Reliez des cercles num\u00e9rot\u00e9s et lettr\u00e9s en s\u00e9quence. Partie A\u202f: vitesse de traitement. Partie B\u202f: flexibilit\u00e9 cognitive (alternance chiffres-lettres).",rules:[{key:"CLIC",desc:"Cliquez les cercles dans l'ordre correct le plus vite possible"},{key:"PARTIE A",desc:"Reliez les chiffres 1 \u2192 2 \u2192 3\u2026 en ordre croissant"},{key:"PARTIE B",desc:"Alternez\u202f: 1 \u2192 A \u2192 2 \u2192 B \u2192 3 \u2192 C\u2026"},{key:"ERREURS",desc:"Les erreurs sont comptabilis\u00e9es \u2014 cliquez la bonne cible pour continuer"}]},
  DSC:{name:"CODAGE CHIFFRE-SYMBOLE",body:"Une cl\u00e9 associe chaque chiffre de 1 \u00e0 9 \u00e0 un symbole unique. Remplissez le symbole correspondant le plus vite possible. T\u00e2che chronom\u00e9tr\u00e9e de 90\u202fs \u2014 mesure classique de la vitesse de traitement (WAIS-IV).",rules:[{key:"S\u00c9LECTIONNER",desc:"Cliquez un symbole dans la palette pour le s\u00e9lectionner"},{key:"REMPLIR",desc:"Cliquez une case vide pour y placer le symbole s\u00e9lectionn\u00e9"},{key:"TOUCHES 1\u20139",desc:"Appuyez sur une touche num\u00e9rique pour s\u00e9lectionner ce symbole"},{key:"TEMPS",desc:"Limite de 90\u202fs \u2014 travaillez de gauche \u00e0 droite"}]},
  PNT:{name:"D\u00c9NOMINATION D'IMAGES",body:"Une illustration d\u00e9taill\u00e9e d'un objet courant appara\u00eet. Nommez-le \u00e0 voix haute le plus rapidement et pr\u00e9cis\u00e9ment possible. La reconnaissance vocale note votre r\u00e9ponse.",rules:[{key:"PARLEZ",desc:"Nommez l'objet illustr\u00e9 \u00e0 voix haute le plus vite possible"},{key:"MICROPHONE",desc:"Cliquez le bouton microphone pour commencer \u00e0 \u00e9couter"},{key:"NOTATION",desc:"Correct si la r\u00e9ponse correspond au nom cible ou synonyme"}]},
  MRT:{name:"ROTATION MENTALE",body:"Deux structures de cubes 3D appara\u00eessent c\u00f4te \u00e0 c\u00f4te. D\u00e9cidez si elles repr\u00e9sentent la m\u00eame forme orient\u00e9e diff\u00e9remment, ou des images miroir.",rules:[{key:"F / ESPACE",desc:"IDENTIQUE \u2014 m\u00eame forme, angle diff\u00e9rent"},{key:"J",desc:"DIFF\u00c9RENT \u2014 image miroir"},{key:"ROTATION",desc:"TR plus lent = plus grand angle de rotation"}]},
  FLANKER:{name:"FLANKER D'ERIKSEN",body:"Des fl\u00e8ches appara\u00eessent en rang\u00e9e. R\u00e9pondez \u00e0 la direction de la fl\u00e8che CENTRALE en ignorant les fl\u00e8ches flanquantes. Les essais incongruents sont plus lents.",rules:[{key:"F / ESPACE",desc:"GAUCHE \u2014 la fl\u00e8che centrale pointe \u00e0 gauche"},{key:"J",desc:"DROITE \u2014 la fl\u00e8che centrale pointe \u00e0 droite"},{key:"IGNOREZ",desc:"Ignorez les fl\u00e8ches flanquantes"},{key:"INCONGRU",desc:"Flanquantes oppos\u00e9es \u2014 plus lent, plus d'erreurs"}]},
  STOP:{name:"SIGNAL STOP",body:"R\u00e9pondez \u00e0 des fl\u00e8ches gauche/droite le plus vite possible. Sur ~25\u202f% des essais, un signal stop (bip) retentit \u2014 retenez votre r\u00e9ponse. Le TRSS mesure la vitesse du contr\u00f4le inhibiteur.",rules:[{key:"F / ESPACE",desc:"R\u00e9pondre \u00e0 la fl\u00e8che GAUCHE"},{key:"J",desc:"R\u00e9pondre \u00e0 la fl\u00e8che DROITE"},{key:"STOP",desc:"Signal stop \u2014 retenir la r\u00e9ponse imm\u00e9diatement"},{key:"VITESSE",desc:"Allez le plus vite possible"}]},
  STROOP:{name:"STROOP COULEUR-MOT",body:"Mesure l'attention s\u00e9lective et le contr\u00f4le cognitif. Un mot de couleur appara\u00eet dans une encre congruente, incongrue ou neutre. R\u00e9pondez \u00e0 la COULEUR DE L'ENCRE \u2014 ignorez le mot.",rules:[{key:"F / G / H / J",desc:"COULEUR DE L'ENCRE\u202f: F=Rouge \xb7 G=Vert \xb7 H=Bleu \xb7 J=Jaune"},{key:"IGNOREZ LE MOT",desc:"Le mot imprim\u00e9 est un distracteur"},{key:"CONGRU",desc:"Mot et couleur identiques \u2014 plus rapide"},{key:"INCONGRU",desc:"Conflit mot/couleur \u2014 r\u00e9v\u00e8le l'interf\u00e9rence Stroop"}]},
  DST:{name:"EMPAN DE CHIFFRES",body:"Mesure la capacit\u00e9 de la m\u00e9moire de travail verbale. Des s\u00e9quences de chiffres sont pr\u00e9sent\u00e9es un par un. Vers l'avant\u202f: r\u00e9p\u00e9ter dans le m\u00eame ordre. Vers l'arri\u00e8re\u202f: r\u00e9p\u00e9ter en ordre invers\u00e9.",rules:[{key:"OBSERVEZ",desc:"Les chiffres appara\u00eessent un par un"},{key:"VERS L'AVANT",desc:"R\u00e9p\u00e9tez les chiffres dans le M\u00caMe ordre"},{key:"VERS L'ARRI\u00c8RE",desc:"R\u00e9p\u00e9tez les chiffres en ordre INVERS\u00c9"},{key:"CONFIRMER",desc:"Appuyez sur \u2713 ou Entr\u00e9e quand votre s\u00e9quence est compl\u00e8te"}]},
  FTT:{name:"TAPPING DIGITAL",body:"Mesure la vitesse et la coordination motrices. Trois \u00e9preuves\u202f: main dominante, main non dominante et alternance (F puis J). Chaque \u00e9preuve\u202f: trois essais de 10\u202fs. Bas\u00e9 sur le test de Halstead-Reitan.",rules:[{key:"DOMINANTE\u202f: ESPACE ou F",desc:"Main dominante \u2014 tapez le plus vite possible"},{key:"NON DOM.\u202f: ESPACE ou J",desc:"Main non dominante \u2014 pareil, autre main"},{key:"ALT.\u202f: F puis J",desc:"Alternance stricte gauche-droite, F puis J"},{key:"10 SECONDES",desc:"Chaque essai dure 10 secondes"}]},
  N400:{name:"N400 AMOR\u00c7AGE S\u00c9MANTIQUE",body:"Une phrase appara\u00eet mot par mot. Le dernier mot s'int\u00e8gre naturellement (congru) ou est s\u00e9mantiquement incongru. D\u00e9cidez si le dernier mot convient au contexte.",rules:[{key:"F / ESPACE",desc:"CONVIENT \u2014 le dernier mot est coh\u00e9rent"},{key:"J",desc:"NE CONVIENT PAS \u2014 le dernier mot est incongru"},{key:"LISEZ",desc:"Lisez chaque mot attentivement"},{key:"VITESSE",desc:"R\u00e9pondez le plus vite et pr\u00e9cis\u00e9ment possible"}]},
  MMN:{name:"N\u00c9GATIVIT\u00c9 DE DISCORDANCE",body:"Paradigme oddball auditif passif \u2014 aucune r\u00e9ponse n'est requise. Un flux de tons standard est jou\u00e9 avec de rares tons d\u00e9viants. La MMN refl\u00e8te la discrimination auditive pr\u00e9-attentive. \u00c9coutez simplement.",rules:[{key:"PASSIF",desc:"Aucune r\u00e9ponse requise \u2014 \u00e9coutez seulement"},{key:"STANDARD",desc:"Ton fr\u00e9quent \u2014 la majorit\u00e9 des tons"},{key:"D\u00c9VIANT",desc:"Ton rare de fr\u00e9quence diff\u00e9rente \u2014 \u00e9licite la MMN"}]},
  P600:{name:"P600 SYNTAXIQUE",body:"Des phrases appara\u00eessent mot par mot. Le dernier mot compl\u00e8te la phrase correctement ou contient une violation syntaxique. D\u00e9cidez si la phrase est grammaticalement correcte.",rules:[{key:"F / ESPACE",desc:"CORRECT \u2014 grammaticalement correct"},{key:"J",desc:"INCORRECT \u2014 contient une violation syntaxique"},{key:"VITESSE",desc:"R\u00e9pondez le plus vite et pr\u00e9cis\u00e9ment possible"}]},
  ERN:{name:"N\u00c9GATIVIT\u00c9 LI\u00c9E \u00c0 L'ERREUR",body:"T\u00e2che de choix rapide\u202f: r\u00e9pondez \u00e0 la fl\u00e8che centrale en 500\u202fms. Les erreurs sont in\u00e9vitables \u00e0 cette vitesse. L'ERN refl\u00e8te la surveillance des erreurs par le cortex cingulaire ant\u00e9rieur.",rules:[{key:"F / ESPACE",desc:"GAUCHE \u2014 fl\u00e8che pointe \u00e0 gauche"},{key:"J",desc:"DROITE \u2014 fl\u00e8che pointe \u00e0 droite"},{key:"VITESSE",desc:"R\u00e9pondez EN 500\u202fms \u2014 les erreurs font partie du paradigme"}]},
  CNV:{name:"VARIATION CONTINGENTE N\u00c9GATIVE",body:"Un ton d'avertissement (S1) indique qu'un stimulus imp\u00e9ratif (S2) suivra apr\u00e8s un intervalle fixe. R\u00e9pondez \u00e0 S2 avec ESPACE. Sur les essais sans S2, retenez la r\u00e9ponse.",rules:[{key:"S1 (ton)",desc:"Signal d'avertissement \u2014 un bref son"},{key:"S2 (cercle)",desc:"Stimulus imp\u00e9ratif \u2014 appuyez sur ESPACE le plus vite possible"},{key:"ESSAI CATCH",desc:"Certains essais n'ont pas de S2 \u2014 retenez la r\u00e9ponse"},{key:"ESPACE",desc:"Seule touche de r\u00e9ponse valide"}]},

  // ── Variantes ERP ───────────────────────────────────────
  ORN:{name:"ORN — NÉGATIVITÉ D'OBJET",body:"Object-Related Negativity — négativité fronto-centrale ~150–250 ms en réponse à un complexe de deux tons simultanés perçus comme deux objets auditifs. Reflète l'analyse de la scène auditive et la formation d'objets auditifs.",rules:[{key:"PASSIF",desc:"Écoutez via casque — aucune tâche active requise"},{key:"STANDARD",desc:"Un seul ton — un objet auditif unifié"},{key:"DÉVIANT",desc:"Désaccord ~3 % — perçu comme deux objets"},{key:"ORN",desc:"Négativité fronto-centrale ~150–250 ms"}]},
  MMNSP:{name:"MMN — PAROLE",body:"Contraste phonémique passif : /ba/ standard vs /pa/ déviant. MMN de la parole, utilisée dans la recherche sur la dyslexie et le développement du langage.",rules:[{key:"ÉCOUTEZ",desc:"Passivement via casque"},{key:"STANDARD",desc:"/ba/ (85 %)"},{key:"DÉVIANT",desc:"/pa/ (15 %) — diffère par le lieu d'articulation"},{key:"MMN",desc:"Négativité fronto-centrale ~150–250 ms"}]},
  PMN:{name:"PMN — NÉGATIVITÉ PHONOLOGIQUE",body:"Phonological Mismatch Negativity — négativité antérieure gauche précoce ~270 ms face à une incongruence phonologique dans des mots parlés. Distincte du N400 sémantique ; reflète l'accès lexical au niveau phonémique.",rules:[{key:"ÉCOUTEZ",desc:"Mots via casque"},{key:"ATTENDU",desc:"Phonème final cohérent avec l'amorce"},{key:"VIOLATION",desc:"Final phonologiquement incompatible"},{key:"PMN",desc:"Négativité antérieure gauche ~270 ms"}]},
  ELAN:{name:"ELAN — NÉG. ANT. GAUCHE PRÉCOCE",body:"Early Left Anterior Negativity — réponse ultra-précoce (100–200 ms) face à une violation syntaxique, antérieure au P600. Localisation antérieure gauche sur le scalp. Indexe la détection automatique des violations de structure de phrase.",rules:[{key:"F / ESPACE",desc:"GRAMMATICAL"},{key:"J",desc:"VIOLATION — structure de phrase rompue"},{key:"ELAN",desc:"Négativité antérieure gauche 100–200 ms"},{key:"P600",desc:"Souvent accompagnée d'une positivité tardive 500–800 ms"}]},
  LAN:{name:"LAN — NÉGATIVITÉ ANT. GAUCHE",body:"Left Anterior Negativity — réponse morphosyntaxique ~300–500 ms face aux violations d'accord (nombre, genre, cas). Latéralisée à gauche ; sépare le traitement syntaxique du sémantique. Distincte du N400 ; spécifique à la grammaire.",rules:[{key:"F / ESPACE",desc:"GRAMMATICAL"},{key:"J",desc:"ERREUR D'ACCORD"},{key:"LAN",desc:"Négativité antérieure gauche ~300–500 ms"},{key:"SPÉCIFIQUE",desc:"Grammaire, pas sémantique"}]},
  CPS:{name:"CPS — DÉCALAGE POSITIF DE CLÔTURE",body:"Closure Positive Shift — positivité bilatérale aux frontières prosodiques de phrases parlées ~200–500 ms. Reflète l'analyse syntaxique des syntagmes intonatifs ; distinct du traitement syntaxique et sémantique.",rules:[{key:"ÉCOUTEZ",desc:"Phrases parlées avec frontières prosodiques"},{key:"FRONTIÈRE",desc:"Pause ou allongement intonatif"},{key:"CPS",desc:"Positivité bilatérale ~200–500 ms"},{key:"PASSIF",desc:"Aucune tâche active requise"}]},
  ASSR:{name:"ASSR 40 Hz",body:"Auditory Steady-State Response — ton modulé en amplitude à 40 Hz. Le cerveau se synchronise en phase à 40 Hz dans la bande gamma. Altéré dans la schizophrénie ; indexe la fonction GABAergique corticale.",rules:[{key:"ÉCOUTEZ",desc:"Ton AM 40 Hz via casque"},{key:"PASSIF",desc:"Aucune tâche active requise"},{key:"RÉPONSE",desc:"Pic net à 40 Hz dans le spectre EEG"},{key:"CLINIQUE",desc:"Réduit dans la schizophrénie"}]},
  ABR:{name:"ABR — RÉPONSE DU TRONC CÉRÉBRAL",body:"Auditory Brainstem Response — potentiels de champ lointain en réponse à un clic. Les ondes I–V reflètent les noyaux auditifs successifs du tronc cérébral. La latence de l'onde V est l'étalon-or clinique du seuil auditif et de la neuropathie auditive.",rules:[{key:"CLICS",desc:"Clics haute fréquence via inserts auriculaires"},{key:"PASSIF",desc:"Souvent en sommeil ou sédation"},{key:"ONDES I–V",desc:"5 pics dans les 10 premières ms"},{key:"CLINIQUE",desc:"Latence V — seuil auditif / neuropathie"}]},
  N1P2:{name:"N1-P2 — RÉPONSE AUDITIVE",body:"N1-P2 — négativité vertex ~100 ms et positivité ~200 ms à l'apparition d'un ton. L'amplitude est modulée par l'attention, l'habituation et l'éveil. Réponse auditive corticale de base.",rules:[{key:"ÉCOUTEZ",desc:"Série de tons via casque"},{key:"N1",desc:"Négativité vertex ~100 ms"},{key:"P2",desc:"Positivité vertex ~200 ms"},{key:"MODULATION",desc:"S'accentue avec l'attention"}]},
  RON:{name:"RON — NÉGATIVITÉ DE RÉORIENTATION",body:"Reorienting Negativity — négativité fronto-centrale ~400–600 ms après un déviant inattendu ayant capturé l'attention. Reflète la réorientation de l'attention vers le canal principal après distraction par un nouveau son.",rules:[{key:"ÉCOUTEZ",desc:"Tâche active avec déviants auditifs"},{key:"CAPTURE",desc:"Un nouveau son capture l'attention"},{key:"RÉORIENT.",desc:"L'attention revient à la tâche"},{key:"RON",desc:"Négativité fronto-centrale ~400–600 ms"}]},
  P1N1:{name:"P1/N1 — ATTENTION SPATIALE",body:"Flash bilatéral avec attention spatiale orientée. P1 amplifié ~100 ms sur le cortex occipital controlatéral au site attendu ; N1 amplifié ~160 ms. ERP canonique de l'attention spatiale couverte (Hillyard et al., 1973).",rules:[{key:"FIXATION",desc:"Fixez le centre — ne bougez pas les yeux"},{key:"INDICE",desc:"Flèche gauche / droite"},{key:"CIBLE",desc:"Flash à gauche ou à droite"},{key:"P1/N1",desc:"Occipital controlatéral, amplifié du côté attendu"}]},
  N170:{name:"N170 — VISAGE / OBJET",body:"N170 — négativité occipito-temporale ~170 ms, sélectivement plus grande pour les visages. Visages schématiques générés proceduralement et objets géométriques sont présentés ; répondez « visage » ou « objet ». L'effet d'inversion faciale (N170 plus grand/tardif pour les visages inversés) est un marqueur robuste du traitement configural des visages.",rules:[{key:"F",desc:"VISAGE — le stimulus est un visage"},{key:"J",desc:"OBJET — le stimulus est une figure géométrique"},{key:"N170",desc:"Négativité occipito-temporale ~170 ms, plus grande pour les visages"},{key:"INVERSION",desc:"Les visages inversés donnent un N170 plus grand et plus tardif"}]},
  VPP:{name:"VPP — POSITIVITÉ VERTEX",body:"Vertex Positive Potential — analogue positif du N170 au vertex médian (Cz) ; pic ~170 ms aux visages ; spécifique aux visages. Reflète la même source fusiforme que le N170, mais avec une polarité opposée en Cz.",rules:[{key:"F",desc:"VISAGE"},{key:"J",desc:"OBJET"},{key:"VPP",desc:"Pic positif en Cz ~170 ms"},{key:"SOURCE",desc:"Gyrus fusiforme — même dipôle que le N170"}]},
  N2PC:{name:"N2pc — CAPTURE ATTENTIONNELLE",body:"Recherche visuelle avec disposition bilatérale. Négativité postérieure controlatérale ~220–300 ms (PO7/PO8) marque la capture attentionnelle couverte par la cible. Indice canonique de la sélection de la cible dans la recherche spatiale.",rules:[{key:"FIXATION",desc:"Fixez le centre — ne bougez pas les yeux"},{key:"RECHERCHE",desc:"Cible à gauche ou à droite parmi des distracteurs"},{key:"RÉPONSE",desc:"Propriété de la cible (couleur/orientation)"},{key:"N2pc",desc:"Négativité postérieure controlatérale ~220–300 ms"}]},
  N2B:{name:"N2b — N2 DE CIBLE",body:"N2b — négativité fronto-centrale ~200–300 ms aux cibles ; attention et catégorisation du stimulus. Séparable du N2pc (spatial) et du N200 (inhibiteur). Reflète l'écart entre le stimulus et le gabarit de cible.",rules:[{key:"F",desc:"CIBLE — le stimulus correspond à la catégorie"},{key:"J",desc:"NON-CIBLE"},{key:"N2b",desc:"Négativité fronto-centrale ~200–300 ms"},{key:"DISTINCTION",desc:"Ni spatial (N2pc), ni inhibiteur (No-Go N2)"}]},
  PD:{name:"Pd — POSITIVITÉ DU DISTRACTEUR",body:"Pd — positivité controlatérale ~200–300 ms aux distracteurs activement supprimés. Image miroir du N2pc ; reflète la suppression top-down de la capture attentionnelle.",rules:[{key:"FIXATION",desc:"Fixez le centre"},{key:"DISTRACTEUR",desc:"Distracteur saillant nécessitant suppression"},{key:"RÉPONSE",desc:"Sur la cible centrale ou de l'autre côté"},{key:"Pd",desc:"Positivité controlatérale au distracteur ~200–300 ms"}]},
  N300:{name:"N300 — AMORÇAGE D'OBJETS",body:"Amorce émoji → cible. Négativité centro-occipitale ~300 ms plus petite pour des paires catégoriellement congruentes. Reflète un traitement catégoriel précoce, antérieur au N400 sémantique.",rules:[{key:"AMORCE",desc:"Émoji 500 ms"},{key:"CIBLE",desc:"Émoji — même catégorie ou différente"},{key:"F",desc:"CORRESPOND à la catégorie"},{key:"J",desc:"NE CORRESPOND PAS"},{key:"N300",desc:"Négativité centro-occipitale ~300 ms"}]},
  P100:{name:"P100 — POTENTIEL VISUEL PAR FLASH",body:"Flashs brefs de luminance plein champ (~80 ms, blanc sur fond noir) avec ISI de 1–2 s produisent le P100 — un pic positif occipital ~80–130 ms généré dans le cortex visuel primaire (V1). Distinct du PVEP à apparition de motif : les flashs activent des régions rétiniennes plus larges et produisent une réponse plus robuste mais moins spatialement spécifique. Comprend des essais catch occasionnels avec flashs atténués nécessitant une réponse ESPACE.",rules:[{key:"FIXATION",desc:"Fixez la croix centrale — ne détournez pas le regard"},{key:"PASSIF",desc:"La plupart des essais ne nécessitent pas de réponse — observez seulement"},{key:"CATCH",desc:"ESPACE : appuyez seulement quand vous voyez un flash ATTÉNUÉ (10 % des essais)"},{key:"P100",desc:"Pic positif occipital ~80–130 ms à O1/Oz/O2"},{key:"V1",desc:"Généré dans V1 ; reflète l'intégrité rétinienne et des voies visuelles"}]},
  SSVEP:{name:"SSVEP",body:"Steady-State Visual Evoked Potential — taches scintillantes à 10 Hz (gauche) et 15 Hz (droite) produisent des pics spectraux nets dans l'EEG occipital exactement à ces fréquences. Utilisé en BCI et recherche sur l'attention.",rules:[{key:"FIXATION",desc:"Regardez la croix centrale"},{key:"ATTENTION",desc:"Concentrez-vous sur un côté scintillant"},{key:"SPECTRE",desc:"Pic à 10 Hz / 15 Hz en EEG occipital"},{key:"BCI",desc:"L'attention sélective module l'amplitude"}]},
  ERAN:{name:"ERAN — NÉG. ANT. DROITE PRÉCOCE",body:"Early Right Anterior Negativity — violation de syntaxe musicale ~150–200 ms ; latéralisée à droite ; détection d'accord déplacé ; analogue musical de l'ELAN pour la syntaxe du langage ; sensible à l'entraînement musical.",rules:[{key:"ÉCOUTEZ",desc:"Séquences d'accords via casque"},{key:"ATTENDU",desc:"Tonique ou sous-dominante"},{key:"VIOLATION",desc:"Accord napolitain / tonalité déplacée"},{key:"ERAN",desc:"Négativité antérieure droite ~150–200 ms"}]},
  BP:{name:"POTENTIEL DE PRÉPARATION",body:"Bereitschaftspotential — appuis volontaires autodirigés. Pente négative lente sur Cz commençant ~1500 ms AVANT le mouvement. Paradigme du libre arbitre de Libet.",rules:[{key:"ESPACE",desc:"Appuyez à votre rythme — irrégulièrement"},{key:"INTERVALLE",desc:"≥4 s entre les appuis — autoryhthme"},{key:"BP",desc:"Négativité lente sur Cz, début ~1500 ms avant le mouvement"},{key:"LIBET",desc:"Paradigme du « libre arbitre »"}]},
  LRP:{name:"LRP — POT. PRÉP. LATÉRALISÉ",body:"Lateralized Readiness Potential — tâche « flèche gauche/droite ». Négativité motrice controlatérale ~300–500 ms indexe la préparation du mouvement spécifique à la main.",rules:[{key:"F",desc:"Flèche gauche → main gauche"},{key:"J",desc:"Flèche droite → main droite"},{key:"LRP",desc:"Négativité cortico-motrice controlatérale 300–500 ms"},{key:"MARQUEUR",desc:"Préparation de réponse manuelle"}]},
  CNVW:{name:"CNV — SIGNAL D'AVERTISSEMENT",body:"S1 (avertissement) → S2 (impératif) avec intervalle de 1000 ms. La négativité lente du CNV croît entre les deux sur le cortex frontal ; l'amplitude reflète la préparation motrice et l'attente temporelle. Distinct du potentiel de préparation.",rules:[{key:"S1",desc:"Ton d'avertissement"},{key:"S2",desc:"Stimulus impératif après 1000 ms"},{key:"ESPACE",desc:"Répondez à S2 le plus vite possible"},{key:"CNV",desc:"Négativité lente entre S1 et S2 sur le cortex frontal"}]},
  PE:{name:"Pe — POSITIVITÉ DE L'ERREUR",body:"Error Positivity — positivité centro-pariétale ~200–400 ms après ERN. Reflète la conscience consciente de l'erreur ; séparable de l'ERN dans l'anosognosie ; médiée par le cortex cingulaire antérieur et l'insula.",rules:[{key:"F / J",desc:"Choix forcé rapide"},{key:"ERREUR",desc:"Après une réponse erronée"},{key:"ERN",desc:"Négativité frontale 0–100 ms"},{key:"Pe",desc:"Positivité centro-pariétale 200–400 ms — conscience de l'erreur"}]},
  N200:{name:"N200 / NoGo N2",body:"Tâche Go/No-Go à deux alternatives ; pic négatif fronto-central ~200 ms, sélectivement plus grand dans les essais No-Go — reflète la suppression active de la réponse prédominante.",rules:[{key:"F / ESPACE",desc:"GO — répondez au cercle DORÉ"},{key:"STOP",desc:"NO-GO — n'appuyez pas sur le cercle BLEU"},{key:"N200",desc:"Pic négatif fronto-central ~200 ms, plus grand en No-Go"},{key:"RATIO",desc:"75 % Go · 25 % No-Go"}]},
  MFN:{name:"MFN — NÉGATIVITÉ FRONTALE MÉDIALE",body:"Medial Frontal Negativity — négativité fronto-centrale ~200–350 ms face au conflit de réponse et à l'écart de prédiction dans des contextes non moteurs. Apparentée à la famille N2 ; sensible à l'incongruence et à la violation d'attente.",rules:[{key:"ATTENTE",desc:"Stimulus prédicteur"},{key:"ÉCART",desc:"Le final viole la prédiction"},{key:"MFN",desc:"Négativité fronto-centrale ~200–350 ms"},{key:"FAMILLE N2",desc:"Apparentée à ERN, N200"}]},
  P3A:{name:"P3a — NOUVEAUTÉ",body:"Oddball à trois stimuli — sépare le P3a (nouveauté frontale) du P3b (détection de cible pariétale). Sons nouveaux / imprévisibles rares produisent P3a ; les cibles produisent P3b.",rules:[{key:"STANDARD",desc:"1000 Hz (80 %)"},{key:"CIBLE",desc:"2000 Hz (10 %) — appuyez sur ESPACE"},{key:"NOUVEAU",desc:"Sons nouveaux aléatoires (10 %) — ignorez"},{key:"P3a",desc:"Positivité frontale à la nouveauté ~250–350 ms"},{key:"P3b",desc:"Positivité pariétale aux cibles ~300–500 ms"}]},
  REWP:{name:"RewP / FRN",body:"Reward Positivity — ERP lié au feedback ~250 ms ; le gain produit une positivité, la perte une négativité ; source orbitofrontale. Utilisé en recherche sur la dépression, les addictions et la prise de décision.",rules:[{key:"CHOIX",desc:"Choisissez une des deux portes"},{key:"FEEDBACK",desc:"Gain ou perte après 600 ms"},{key:"RewP",desc:"Positivité fronto-centrale ~250 ms au gain"},{key:"FRN",desc:"Même intervalle temporel — négativité à la perte"}]},
  LPC:{name:"LPC — COMPOSANT POS. TARDIF",body:"Late Positive Component — positivité pariétale 500–800 ms lors de la reconnaissance épisodique. Reflète le souvenir (recollection) ; séparable de la familiarité (FN400) ; grand pour les items rappelés avec fiabilité.",rules:[{key:"ANCIEN",desc:"Item étudié auparavant"},{key:"NOUVEAU",desc:"Item non étudié"},{key:"LPC",desc:"Positivité pariétale 500–800 ms"},{key:"SOUVENIR",desc:"Plus grand pour les réponses « je me souviens » fiables"}]},
  FRN:{name:"FRN — NÉG. DE FEEDBACK",body:"Feedback-Related Negativity — négativité fronto-centrale ~200–300 ms après résultats négatifs ; signal d'erreur de prédiction de récompense ; distincte de l'ERN (erreurs propres) ; sensible à la dépression et aux addictions.",rules:[{key:"CHOIX",desc:"Devinez quelle porte gagnera"},{key:"FEEDBACK",desc:"Gain ou perte après 600 ms"},{key:"FRN",desc:"Négativité fronto-centrale ~200–300 ms à la perte"},{key:"SIGNAL",desc:"Erreur de prédiction de récompense"}]},
  SCP:{name:"SCP — POTENTIELS LENTS",body:"Slow Cortical Potentials — décalages DC soutenus pendant la charge cognitive. Utilisés en neurofeedback et BCI. La régulation volontaire des SCP est la base des BCI classiques de Birbaumer.",rules:[{key:"CHARGE",desc:"Maintenez l'effort mental pendant le bloc"},{key:"REPOS",desc:"Détendez-vous entre les blocs"},{key:"SCP",desc:"Décalage DC lent — secondes"},{key:"BCI",desc:"Régulation volontaire possible avec entraînement"}]},
  CDA:{name:"CDA — ACTIVITÉ CONTROLAT. DIFFÉRÉE",body:"Contralateral Delayed Activity — négativité controlatérale soutenue sur le cortex postérieur pendant le maintien d'items visuels en mémoire de travail. L'amplitude plafonne à la capacité de MT (~3–4 items).",rules:[{key:"FIXATION",desc:"Fixez le centre"},{key:"ÉTUDE",desc:"Mémorisez les carrés colorés d'un côté"},{key:"RÉTENTION",desc:"Délai de 1 s"},{key:"CDA",desc:"Négativité postérieure controlatérale pendant le délai"},{key:"CAPACITÉ",desc:"Plateau à ~3–4 items = capacité MT"}]},
  THALPHA:{name:"THÊTA / ALPHA",body:"Rythmes EEG spontanés au repos. Le thêta frontal (4–8 Hz) augmente avec la charge cognitive ; l'alpha occipital (8–13 Hz) prédomine yeux fermés. Indicateur de base de l'état cortical.",rules:[{key:"YEUX",desc:"Alternez « ouverts » et « fermés »"},{key:"ALPHA",desc:"Pic occipital 8–13 Hz yeux fermés"},{key:"THÊTA",desc:"Frontal 4–8 Hz sous charge"},{key:"ÉTAT",desc:"Blocage alpha à l'ouverture des yeux"}]},
  P50:{name:"P50 — FILTRAGE SENSORIEL",body:"Paradigme double clic : deux clics auditifs avec intervalle de 500 ms. Le P50 au S2 est normalement supprimé (~50 % du S1). Le rapport S2/S1 indexe le filtrage sensoriel ; altéré dans la schizophrénie.",rules:[{key:"CLICS",desc:"Paires de clics intervalle 500 ms via casque"},{key:"PASSIF",desc:"Aucune tâche active requise"},{key:"P50",desc:"Pic positif ~50 ms à chaque clic"},{key:"FILTRE",desc:"S2/S1 normalement <0,5"}]},
  N100:{name:"N100 / P200",body:"N100 auditif — négativité vertex ~100 ms aux tons ; P200 — positivité ~200 ms. L'amplitude reflète l'intensité et l'habituation. Complexe auditif cortical de base.",rules:[{key:"ÉCOUTEZ",desc:"Série de tons via casque"},{key:"N100",desc:"Négativité vertex ~100 ms"},{key:"P200",desc:"Positivité vertex ~200 ms"},{key:"HABITUATION",desc:"L'amplitude diminue avec la répétition"}]},
  LDAEP:{name:"LDAEP — DÉPENDANCE À L'INTENSITÉ",body:"Loudness Dependence of Auditory Evoked Potentials — pente de l'amplitude N1/P2 en fonction du volume du ton. Une pente forte est corrélée à une activité sérotoninergique basse ; utilisé en recherche sur la dépression.",rules:[{key:"ÉCOUTEZ",desc:"Tons à 5 niveaux de volume"},{key:"PASSIF",desc:"Aucune tâche active requise"},{key:"PENTE",desc:"Amplitude N1/P2 vs volume"},{key:"SÉROTONINE",desc:"Pente forte → 5-HT bas"}]},
  C1:{name:"C1 — COMPOSANT VISUEL PRÉCOCE",body:"ERP visuel le plus précoce, ~60–100 ms. Généré dans V1 (cortex visuel primaire). La polarité dépend du champ visuel : positive pour le champ inférieur, négative pour le champ supérieur. Marqueur du traitement rétinotopique.",rules:[{key:"FIXATION",desc:"Fixez le centre"},{key:"CHAMP",desc:"Stimuli dans le champ visuel supérieur ou inférieur"},{key:"C1",desc:"Pic occipital ~60–100 ms"},{key:"SOURCE",desc:"V1 — cortex visuel primaire"}]},

  // ── Tests sensoriels ─────────────────────────────────
  SNELLEN:{name:"ÉCHELLE DE SNELLEN",body:"Dépistage de l'acuité visuelle. Échelle standard de Snellen avec lettres de taille décroissante. Lisez chaque ligne à distance de vision ; la plus petite ligne lue correctement détermine l'acuité au format 20/X (ou 6/X en métrique).",rules:[{key:"DISTANCE",desc:"Asseyez-vous à ~3 m de l'écran"},{key:"LISEZ",desc:"Énoncez les lettres de chaque ligne"},{key:"SEUIL",desc:"La plus petite ligne lue correctement"},{key:"DÉPISTAGE",desc:"Ne remplace pas un examen optométrique"}]},
  ISHIHARA:{name:"PLANCHES D'ISHIHARA",body:"Dépistage de la vision des couleurs pour l'anomalie rouge-vert. Nombres cachés dans des motifs de points ; visibles par les trichromates normaux mais non par les personnes avec protanopie ou deutéranopie. Outil classique de dépistage.",rules:[{key:"OBSERVEZ",desc:"Identifiez le nombre sur chaque planche"},{key:"TEMPS",desc:"~3 s par planche"},{key:"DÉFICIT R/V",desc:"Protan / deutan — formes les plus courantes"},{key:"DÉPISTAGE",desc:"Ne remplace pas un examen colorimétrique complet"}]},
  SEASHORE:{name:"SEASHORE — RYTHME",body:"Test des capacités rythmiques de Seashore. Écoutez des paires de séquences rythmiques ; décidez si elles sont identiques ou différentes. Mesure la discrimination auditive, surtout le traitement rythmique. Utilisé en évaluation des capacités musicales et de l'amusie.",rules:[{key:"ÉCOUTEZ",desc:"Paire de rythmes via casque"},{key:"F",desc:"IDENTIQUES"},{key:"J",desc:"DIFFÉRENTS"},{key:"AMUSIE",desc:"Performance réduite en amusie congénitale"}]},
  AUDIOM:{name:"AUDIOMÉTRIE — TON PUR",body:"Dépistage du seuil auditif. Tons présentés à différentes fréquences (250 Hz – 8 kHz) et intensités ; appuyez à la détection. L'audiogramme trace le seuil par fréquence — indicateur de base de la santé auditive.",rules:[{key:"CASQUE",desc:"Casque calibré obligatoire"},{key:"PIÈCE CALME",desc:"Minimisez le bruit de fond"},{key:"ESPACE",desc:"Appuyez à chaque ton détecté"},{key:"SEUIL",desc:"Niveau le plus bas détecté à chaque fréquence"}]},
  GABOR:{name:"GABOR — SENSIB. AU CONTRASTE",body:"Taches de Gabor (réseaux sinusoïdaux dans une enveloppe gaussienne) à contraste variable. Méthode d'escalier détermine le seuil de détection. Outil classique pour mesurer la fonction de sensibilité au contraste.",rules:[{key:"FIXATION",desc:"Fixez la croix centrale"},{key:"F / J",desc:"Réseau à gauche ou à droite"},{key:"ESCALIER",desc:"Le contraste s'adapte à la performance"},{key:"SEUIL",desc:"~75 % de réponses correctes"}]},

  // ── Attention et vigilance ─────────────────────────────
  CPT:{name:"CPT — PERFORMANCE CONTINUE",body:"Continuous Performance Test (CPT-AX) — maintien de l'attention/vigilance. Lettres présentées continuellement ; la cible est X après A. Détecte les effets du TDAH et la fatigue post-TCC dans le temps.",rules:[{key:"ESPACE",desc:"Appuyez seulement quand X suit immédiatement A"},{key:"IGNOREZ",desc:"Toutes les autres lettres et paires"},{key:"ERREURS",desc:"Omissions (inattention) et commissions (impulsivité)"},{key:"DURÉE",desc:"~10–15 min pour détecter le déclin de vigilance"}]},
  ATTBLINK:{name:"CLIGNEMENT ATTENTIONNEL",body:"RSVP de lettres ; T2 est manquée quand elle suit T1 de 200–500 ms ; fenêtre temporelle d'inattention après épuisement des ressources. Indice classique des limites temporelles de l'attention.",rules:[{key:"OBSERVEZ",desc:"Flux rapide de lettres au centre"},{key:"T1",desc:"Première cible — lettre blanche"},{key:"T2",desc:"Seconde cible — lettre X"},{key:"CLIGNEMENT",desc:"T2 manquée à lag 200–500 ms"}]},
  DUALTASK:{name:"DOUBLE TÂCHE",body:"Surveillance simultanée de lettres + suivi spatial ; le coût de double tâche indexe l'attention partagée et le goulet d'étranglement central. Indicateur de capacité attentionnelle.",rules:[{key:"TÂCHE 1",desc:"Identifiez les lettres cibles"},{key:"TÂCHE 2",desc:"Suivez un point en mouvement"},{key:"COÛT",desc:"Performance double vs simple"},{key:"GOULET",desc:"Reflète la limite du traitement central"}]},
  SART:{name:"SART — VIGILANCE",body:"Sustained Attention to Response Task — répondez à chaque chiffre sauf 3. Le taux de commissions indexe le vagabondage de l'esprit ; sensible au TCC et au TDAH. Paradigme de « rejet de réponse ».",rules:[{key:"ESPACE",desc:"Appuyez à chaque chiffre"},{key:"STOP",desc:"N'APPUYEZ PAS sur 3"},{key:"COMMISSIONS",desc:"Erreurs sur 3 = vagabondage de l'esprit"},{key:"DURÉE",desc:"~5 min — déclins de vigilance"}]},
  UFOV:{name:"UFOV — CHAMP VISUEL UTILE",body:"Useful Field of View — discrimination centrale + détection périphérique ; attention partagée ; prédicteur de la sécurité au volant ; sensible au vieillissement et au TCC.",rules:[{key:"CENTRE",desc:"Identifiez le stimulus central"},{key:"PÉRIPHÉRIE",desc:"Localisez le stimulus périphérique"},{key:"TEMPS",desc:"Présentations brèves (~100 ms)"},{key:"CONDUITE",desc:"UFOV réduit → risque d'accident accru"}]},

  // ── Mémoire de travail et traitement ───────────────────
  SPATWM:{name:"MÉMOIRE DE TRAVAIL SPATIALE",body:"Mémorisez les emplacements de carrés surlignés après un délai ; distincte de l'empan verbal ; analogue au tapping de blocs de Corsi. Évalue le système de mémoire de travail pariétal droit.",rules:[{key:"ÉTUDE",desc:"Les carrés sont surlignés séquentiellement"},{key:"DÉLAI",desc:"Intervalle de rétention bref"},{key:"REPRODUCTION",desc:"Cliquez sur les mêmes carrés dans l'ordre"},{key:"EMPAN",desc:"Plus longue séquence correcte"}]},
  DIGCAN:{name:"BARRAGE DE CHIFFRES",body:"Parcourez une grille de chiffres aléatoires et marquez chaque cible (p. ex. 3 et 7) ; nombre total correct, omissions, fausses alarmes et temps — indicateurs de l'attention soutenue et de la vitesse de traitement.",rules:[{key:"CLIC",desc:"Cliquez sur les cibles (3 et 7)"},{key:"IGNOREZ",desc:"Tous les autres chiffres"},{key:"TEMPS",desc:"Travaillez le plus vite possible"},{key:"MÉTRIQUES",desc:"Précision, omissions, fausses alarmes, temps"}]},
  STAR:{name:"BARRAGE D'ÉTOILES",body:"Trouvez et cliquez sur chaque petite étoile cible parmi des distracteurs (grandes étoiles, lettres, mots courts) ; total 52 cibles. Dépistage classique du Behavioural Inattention Test (BIT) pour la négligence hémispatiale gauche (post-AVC, lésions). Score : cibles trouvées, asymétrie (G vs D), temps.",rules:[{key:"CLIC",desc:"Cliquez seulement sur les petites étoiles"},{key:"IGNOREZ",desc:"Grandes étoiles, lettres, mots"},{key:"ASYMÉTRIE",desc:"Différence G/D dans les cibles trouvées"},{key:"NÉGLIGENCE",desc:"Cibles d'un côté systématiquement manquées"}]},
  TASKSWITCH:{name:"CHANGEMENT DE TÂCHE",body:"Alternez deux règles de classification avec indice ; le coût de changement = ralentissement du TR aux essais de changement ; mesure la flexibilité cognitive et la reconfiguration de tâche.",rules:[{key:"INDICE",desc:"La couleur du cadre indique la règle actuelle"},{key:"RÈGLE 1",desc:"Classez par parité"},{key:"RÈGLE 2",desc:"Classez par magnitude"},{key:"COÛT",desc:"TR changement − TR répétition"}]},
  EMOTSTROOP:{name:"STROOP ÉMOTIONNEL",body:"Nommez la couleur d'encre de mots émotionnels vs neutres ; l'interférence affective ralentit le TR pour les mots émotionnels ; mesure le biais attentionnel vers la menace ou un contenu pertinent au traumatisme.",rules:[{key:"COULEUR",desc:"Répondez à la COULEUR DE L'ENCRE"},{key:"IGNOREZ",desc:"Le sens du mot"},{key:"ÉMOTION",desc:"Mots menaçants/négatifs ralentissent le TR"},{key:"BIAIS",desc:"Marqueur d'anxiété, TSPT, phobies"}]},
  SUBITIZE:{name:"SUBITISATION",body:"Énumérez rapidement 1–8 points ; pente plate de TR 1–4 (subitisation) vs pente raide 4+ (comptage) ; vitesse de traitement des quantités numériques. Distingue la pensée prénumérique et numérique.",rules:[{key:"OBSERVEZ",desc:"Les points apparaissent brièvement"},{key:"RÉPONSE",desc:"Entrez le nombre"},{key:"SUBITISATION",desc:"1–4 : TR rapide et plat"},{key:"COMPTAGE",desc:"5+ : TR augmente linéairement"}]},

  // ── Fonctions exécutives ────────────────────────────────
  TOL:{name:"TOUR DE LONDRES",body:"Déplacez des disques colorés pour atteindre une configuration cible en un minimum de mouvements ; mesure la planification exécutive, l'inhibition préfrontale et la résolution de problèmes ; sensible à la dysfonction du lobe frontal.",rules:[{key:"CIBLE",desc:"Atteignez la configuration affichée"},{key:"MINIMUM",desc:"Utilisez le minimum de mouvements"},{key:"RÈGLES",desc:"Un disque par mouvement ; tiges à capacité limitée"},{key:"PLANIFICATION",desc:"Planifiez avant de bouger"}]},
  MATRIX:{name:"RAISONNEMENT MATRICIEL",body:"Complétez le motif ; intelligence fluide non verbale ; culturellement neutre ; sensible au déclin cognitif global. Analogue aux Matrices de Raven.",rules:[{key:"OBSERVEZ",desc:"Matrice 3×3 avec une cellule manquante"},{key:"CHOIX",desc:"Sélectionnez l'élément qui complète le motif"},{key:"RÈGLES",desc:"Lignes/colonnes suivent des transformations logiques"},{key:"Gf",desc:"Marqueur de l'intelligence fluide"}]},
  META:{name:"MÉTACOGNITION",body:"Estimations de confiance sur les décisions de mémoire ; d-prime de type 2 ; efficacité métacognitive ; altérée dans la schizophrénie et l'anosognosie. Mesure le lien entre précision et confiance.",rules:[{key:"ÉTUDE",desc:"Mémorisez les mots"},{key:"TEST",desc:"ANCIEN ou NOUVEAU ?"},{key:"CONFIANCE",desc:"Évaluez la confiance 1–6"},{key:"d′2",desc:"Écart de TR pour les corrects sûrs vs erreurs"}]},

  // ── Vitesse de traitement ────────────────────────────────
  SYMSEARCH:{name:"RECHERCHE DE SYMBOLES",body:"Sous-test du WAIS-IV — parcourez une rangée de symboles et décidez si l'une des deux cibles y apparaît ; indice de vitesse de traitement avec le codage chiffre-symbole.",rules:[{key:"CIBLE",desc:"Deux symboles cibles à gauche"},{key:"RECHERCHE",desc:"5 symboles à droite"},{key:"OUI / NON",desc:"Une cible apparaît-elle parmi les 5 ?"},{key:"VITESSE",desc:"120 s — faites-en autant que possible"}]},
  PASAT:{name:"PASAT",body:"Paced Auditory Serial Addition Test — chiffres individuels présentés à un rythme fixe ; ajoutez chaque nouveau chiffre au précédent immédiatement ; mesure l'attention partagée, la mise à jour de la MT et la vitesse de traitement ; standard dans l'évaluation de la SEP et du TCC.",rules:[{key:"ÉCOUTEZ",desc:"Chiffres individuels via casque"},{key:"AJOUTEZ",desc:"Ajoutez le chiffre actuel au PRÉCÉDENT (pas à la somme)"},{key:"RYTHME",desc:"Un chiffre toutes les 3 s (ou 2 s)"},{key:"STANDARD",desc:"Utilisé dans la batterie MSFC pour SEP"}]},

  // ── Mémoire ─────────────────────────────────────────────
  RAVLT:{name:"RAVLT — APPRENTISSAGE VERBAL",body:"Rey Auditory Verbal Learning Test — liste de 15 mots lue 5 fois ; liste d'interférence ; rappel immédiat ; rappel différé à 20 min ; courbe d'apprentissage, effets de primauté/récence, interférence proactive, rétention — étalon-or de l'évaluation de la mémoire verbale.",rules:[{key:"5 ESSAIS",desc:"Même liste 5 fois"},{key:"INTERFÉR.",desc:"Liste B — une fois, distracteur"},{key:"DIFFÉRÉ",desc:"Rappel après 20 min"},{key:"RECONNAIS.",desc:"Essai final de reconnaissance"}]},
  CVLT:{name:"CVLT — APPRENTISSAGE CALIFORNIE",body:"California Verbal Learning Test — « liste de courses » de 16 mots de 4 catégories sémantiques ; 5 essais d'apprentissage ; rappels libres et indicés différés courts et longs ; reconnaissance ; mesure la courbe d'apprentissage, le regroupement sémantique, la position sérielle et la rétention.",rules:[{key:"5 ESSAIS",desc:"Même liste 5 fois"},{key:"CATÉGORIES",desc:"4 catégories sémantiques, cachées"},{key:"REGROUP.",desc:"Regroupement sémantique spontané"},{key:"INDICES",desc:"Rappel indicé par catégorie"}]},
  PAL:{name:"APPRENTIS. DE PAIRES ASSOCIÉES",body:"Étudiez des paires mot-mot ; rappel indicé ; mesure la liaison associative hippocampique ; sensible à la maladie d'Alzheimer précoce.",rules:[{key:"ÉTUDE",desc:"Paires de mots présentées ensemble"},{key:"TEST",desc:"Premier mot → entrez le second"},{key:"HIPPOCAMPE",desc:"La liaison dépend du LTM"},{key:"MARQ. MA",desc:"Déclin précoce dans la maladie d'Alzheimer"}]},
  SRCMEM:{name:"MÉMOIRE DE SOURCE",body:"Mémorisez non seulement quoi mais où vous l'avez appris ; fonction du lobe frontal ; sépare le souvenir de la familiarité. Évalue non l'item lui-même mais son contexte.",rules:[{key:"ÉTUDE",desc:"Mots en deux polices/couleurs différentes"},{key:"ANCIEN ?",desc:"D'abord : avez-vous vu le mot ?"},{key:"SOURCE ?",desc:"Ensuite : quelle police/couleur ?"},{key:"FRONTAL",desc:"Lésions frontales réduisent la mémoire de source"}]},
  PROSMEM:{name:"MÉMOIRE PROSPECTIVE",body:"Souvenez-vous d'appuyer sur une touche quand une cible apparaît pendant une tâche en cours ; souvent altérée dans le TCC et le vieillissement. « Mémoire des intentions ».",rules:[{key:"EN COURS",desc:"Effectuez une décision lexicale"},{key:"INTENTION",desc:"Quand apparaît « BATEAU » — appuyez sur Q"},{key:"RARE",desc:"La cible est rare (~5 %)"},{key:"MÉM. PLANS",desc:"Fonction préfrontale"}]},
  SEMFLUENCY:{name:"FLUIDITÉ SÉMANTIQUE",body:"Nommez autant d'animaux/aliments/outils que possible en 60 s ; le total et les indicateurs de regroupement indexent l'intégrité des lobes frontal/temporal.",rules:[{key:"60 SECONDES",desc:"Nommez-en autant que possible"},{key:"CATÉGORIE",desc:"P. ex. : animaux"},{key:"REGROUP.",desc:"Groupes sémantiquement liés"},{key:"COMMUTATION",desc:"Transitions entre sous-catégories"}]},
  PHONFLUE:{name:"FLUIDITÉ PHONÉMIQUE (FAS)",body:"Nommez autant de mots commençant par F, puis A, puis S, en 60 s chacun ; la fluidité phonémique indexe l'intégrité du lobe frontal et la vitesse d'accès lexical ; distincte de la fluidité sémantique.",rules:[{key:"60 SECONDES",desc:"Par lettre"},{key:"LETTRES",desc:"F, puis A, puis S"},{key:"EXCLUSIONS",desc:"Pas de noms propres ni de même racine"},{key:"FRONTAL",desc:"Sensible à la dysfonction frontale"}]},

  // ── Langage et lexique ──────────────────────────────────
  LEXDEC:{name:"DÉCISION LEXICALE",body:"Mot vs non-mot le plus vite possible ; le TR dépend de la fréquence du mot, de l'imageabilité et de la taille du voisinage orthographique. Tâche standard de psycholinguistique.",rules:[{key:"F",desc:"MOT"},{key:"J",desc:"NON-MOT"},{key:"VITESSE",desc:"Répondez vite"},{key:"FRÉQUENCE",desc:"Mots fréquents → plus rapides"}]},
  BNT:{name:"TEST DE DÉNOMINATION DE BOSTON",body:"Nommez des dessins au trait d'objets ; difficulté graduée ; sensible aux dommages du lobe temporal et à la maladie d'Alzheimer. Étalon-or de l'évaluation de la dénomination.",rules:[{key:"MICRO",desc:"Activez le microphone"},{key:"NOM",desc:"Prononcez le nom de l'objet à voix haute"},{key:"GRADATION",desc:"Du facile au difficile"},{key:"CRITÈRE",desc:"6 échecs consécutifs = arrêt"}]},

  // ── Visuospatial ────────────────────────────────────────
  JLO:{name:"JUGEMENT D'ORIENTATION DE LIGNES",body:"Judgment of Line Orientation (JLO, Benton) — appariez deux segments angulaires à un éventail de référence de 11 lignes ; mesure la perception visuospatiale ; fonction du lobe pariétal droit ; sensible à la négligence hémispatiale et aux lésions pariétales.",rules:[{key:"ÉVENTAIL",desc:"11 lignes, numérotées 1–11"},{key:"APPARIEZ",desc:"Trouvez les 2 lignes en haut correspondantes"},{key:"PARIÉTAL",desc:"Sensible au cortex pariétal droit"},{key:"NÉGLIGENCE",desc:"Biais systématique vers le côté gauche"}]},
  TOJ:{name:"JUGEMENT D'ORDRE TEMPOREL",body:"Quel stimulus est apparu en premier ? Estimation du JND par méthode d'escalier ; sensible à la dysfonction temporelle des ganglions de la base et du cervelet. Marqueur de la chronesthésie.",rules:[{key:"DEUX STIMULI",desc:"Gauche et droite avec petit SOA"},{key:"F",desc:"GAUCHE D'ABORD"},{key:"J",desc:"DROITE D'ABORD"},{key:"ESCALIER",desc:"SOA converge vers 75 % de précision"}]},

  // ── Cognition sociale ───────────────────────────────────
  RMET:{name:"LECTURE DE L'ESPRIT DANS LES YEUX",body:"Reading the Mind in the Eyes (Baron-Cohen) — inférez l'état mental à partir de photos de la région des yeux ; choix forcé à 4 alternatives ; mesure la théorie de l'esprit / cognition sociale ; altérée dans le TSA, l'alexithymie et les lésions frontales.",rules:[{key:"OBSERVEZ",desc:"Seule la région des yeux"},{key:"4 CHOIX",desc:"Choisissez parmi 4 états mentaux"},{key:"ToM",desc:"Théorie de l'esprit / mentalisation"},{key:"AUTISME",desc:"Performance réduite dans le TSA"}]},
  FER:{name:"RECONNAIS. DES ÉMOTIONS FACIALES",body:"Identifiez six émotions de base ; traitement affectif dépendant de l'amygdale ; altéré dans les lésions amygdaliennes et la dépression.",rules:[{key:"OBSERVEZ",desc:"Le visage exprime une des 6 émotions"},{key:"6 ÉMOTIONS",desc:"Joie, tristesse, colère, peur, dégoût, surprise"},{key:"AMYGDALE",desc:"Particulièrement peur et colère"},{key:"DÉPRESSION",desc:"Biais vers les émotions négatives"}]},

  // ── Prise de décision ──────────────────────────────────
  IGT:{name:"TÂCHE DE JEU DE L'IOWA",body:"Choisissez parmi quatre jeux de cartes ; favorables (C/D) vs défavorables (A/B) ; mesure la fonction du marqueur somatique / cortex préfrontal ventromédian ; altérée dans les addictions, lésions vmPFC et psychopathie.",rules:[{key:"4 JEUX",desc:"A, B, C, D — distributions cachées"},{key:"DÉCISION",desc:"Choisissez un jeu par tour"},{key:"FEEDBACK",desc:"Gain + perte aléatoire"},{key:"MARQ. SOM.",desc:"Les sains passent à C/D avec le temps"}]},

  // ── Échelles de dépistage ──────────────────────────────
  MOCA:{name:"MoCA — ÉVALUATION COG. MONTRÉAL",body:"Montreal Cognitive Assessment — l'instrument de dépistage cognitif bref le plus utilisé, développé par Nasreddine et al. (2005). Évalue dix domaines cognitifs en ~10 minutes. Maximum 30 points ; <26 est un dépistage positif de trouble cognitif léger.",rules:[{key:"DOMAINES",desc:"10 : visuospatial, dénomination, mémoire, attention, langage, abstraction, orientation"},{key:"SCORE",desc:"Total /30 — ≥26 normal ; <26 positif"},{key:"TEMPS",desc:"~10 minutes"},{key:"ÉDUCATION",desc:"+1 point si ≤12 ans d'éducation formelle"}]},
  CDT:{name:"TEST DU DESSIN DE L'HORLOGE",body:"Dessinez une horloge indiquant 11h10 ; dépistage classique de démence, dysfonction exécutive, négligence hémispatiale, apraxie constructive. Utilisé dans MoCA, MMSE-2, Mini-Cog. Version navigateur capture les données complètes de tracé + temps d'exécution pour cotation manuelle (échelle Shulman 6 points ou Sunderland 10 points).",rules:[{key:"DESSINEZ",desc:"Cadran d'horloge avec tous les chiffres"},{key:"HEURE",desc:"Placez les aiguilles à 11h10"},{key:"COTATION",desc:"Shulman 6 points ou Sunderland 10 points"},{key:"TRACÉS",desc:"Données complètes de tracé sauvegardées"}]},
  PHQ9:{name:"PHQ-9 — DÉPRESSION",body:"PHQ-9 (Kroenke et al., 2001) — le dépistage bref de la dépression le plus validé. Neuf items correspondent aux critères DSM-5 de l'épisode dépressif majeur ; notation 0–3 sur les deux dernières semaines. Un score ≥10 a une sensibilité de 88 % et une spécificité de 88 % pour la dépression majeure. Domaine public.",rules:[{key:"2 SEMAINES",desc:"Notez à quelle fréquence le problème vous a gêné sur 2 semaines"},{key:"0–3",desc:"0=pas du tout / 1=plusieurs jours / 2=plus de la moitié / 3=presque tous les jours"},{key:"SEUIL",desc:"Total ≥10 = dépistage positif"},{key:"ITEM 9",desc:"Idéation suicidaire — suivi clinique"},{key:"SUIVI",desc:"Un changement de 5 points est cliniquement significatif"}]},
  GAD7:{name:"GAD-7 — ANXIÉTÉ",body:"GAD-7 (Spitzer et al., 2006) — dépistage du trouble anxieux généralisé et de la sévérité de l'anxiété. Sept items 0–3 sur les deux dernières semaines. Un score ≥10 a une sensibilité de 89 % et une spécificité de 82 % pour le TAG ; dépiste également efficacement la panique, l'anxiété sociale et le TSPT. Domaine public.",rules:[{key:"2 SEMAINES",desc:"Notez les 2 dernières semaines"},{key:"0–3",desc:"0=pas du tout / 1=plusieurs jours / 2=plus de la moitié / 3=presque tous les jours"},{key:"SEUIL",desc:"≥10 = dépistage positif"},{key:"LARGE",desc:"TAG, panique, anxiété sociale, TSPT"},{key:"SUIVI",desc:"Suit la réponse au traitement"}]},
  PCL5:{name:"PCL-5 — TSPT",body:"PCL-5 (Weathers et al., 2013) — sévérité des symptômes de TSPT selon DSM-5. Vingt items couvrent intrusion (5), évitement (2), cognition/humeur négatives (7) et excitation/réactivité (6). Chacun coté 0–4 sur le dernier mois. Le seuil ≥33 est habituellement utilisé pour le dépistage positif. Domaine public.",rules:[{key:"MOIS",desc:"Notez sur le dernier mois"},{key:"0–4",desc:"0=pas du tout / ... / 4=extrêmement"},{key:"SEUIL",desc:"Total ≥33 = TSPT probable"},{key:"CLUSTERS",desc:"Intrusion / évitement / cognition-humeur / excitation"},{key:"DSM-5",desc:"Le score par cluster donne un diagnostic provisoire"}]},
  AUDIT:{name:"AUDIT — CONSOMMATION D'ALCOOL",body:"AUDIT (Saunders et al., 1993, OMS) — étalon-or du dépistage des troubles liés à l'alcool. Dix items : consommation (1–3), dépendance (4–6), dommage (7–10). Score 0–7 risque faible ; 8–15 dangereux ; 16–19 nocif ; 20+ dépendance probable. Domaine public.",rules:[{key:"ANNÉE",desc:"Notez les 12 derniers mois"},{key:"UNITÉ",desc:"≈10 g d'éthanol (1 bière / 1 verre de vin)"},{key:"SEUIL",desc:"≥8 — consommation dangereuse / nocive"},{key:"ZONES",desc:"I (faible) / II (dangereux) / III (nocif) / IV (dépendance)"},{key:"OMS",desc:"Standard mondial"}]},
  ASRS:{name:"ASRS — TDAH ADULTE",body:"ASRS-v1.1 (Kessler et al., 2005) — dépistage du TDAH adulte. Contient 18 questions correspondant aux critères DSM-IV du TDAH, cotées 0–4 sur les 6 derniers mois. La Partie A (questions 1–6) est un dépistage bref validé ; ≥4 sur 6 items dans la zone ombrée = dépistage positif (sensibilité 68,7 %, spécificité 99,5 %). Domaine public.",rules:[{key:"6 MOIS",desc:"Notez les 6 derniers mois"},{key:"PARTIE A",desc:"Questions 1–6 — dépistage validé"},{key:"SEUIL",desc:"≥4 sur 6 dans la zone ombrée = positif"},{key:"DEUX TYPES",desc:"Inattention et hyperactivité-impulsivité"},{key:"ADULTES",desc:"Pas pour enfants — échelles pédiatriques distinctes"}]},
  HACHINSKI:{name:"ÉCHELLE ISCHÉMIQUE DE HACHINSKI",body:"Hachinski Ischemic Score (Hachinski, Iliff, Zilhka et al., 1975, Arch Neurol 32:632–637) — liste de contrôle de 13 items remplie par le clinicien pour différencier la démence multi-infarctus (vasculaire) de la démence de type Alzheimer. Chaque item est coté présent (1 ou 2 points) ou absent (0). Plage totale 0–18. ≤4 → dégénérative primaire ; 5–6 → mixte ; ≥7 → multi-infarctus.",rules:[{key:"CLINICIEN",desc:"Rempli à partir de l'anamnèse du patient et de l'informant"},{key:"13 ITEMS",desc:"Présent = 1 ou 2 points ; absent = 0"},{key:"POIDS",desc:"2 points : début brusque, fluctuation, AVC, symptômes/signes focaux"},{key:"SEUILS",desc:"≤4 = type MA ; 5–6 = mixte ; ≥7 = multi-infarctus"},{key:"ADJUVANT",desc:"À utiliser avec la neuro-imagerie"}]},
  KATZ:{name:"INDICE DE KATZ — AVQ DE BASE",body:"Katz Index (Katz et al., 1963, JAMA 185:914–919) — la mesure la plus utilisée des activités de base de la vie quotidienne. Six items — bain, habillage, toilette, transfert, continence et alimentation — chacun coté 1 (indépendant) ou 0 (dépendant). Total 0–6. L'échelle de Katz capture les capacités fondamentales d'auto-soin, qui déclinent tardivement dans la démence et la progression du handicap.",rules:[{key:"CLINICIEN",desc:"Coté par clinicien ou informant"},{key:"6 ITEMS",desc:"Bain · Habillage · Toilette · Transfert · Continence · Alimentation"},{key:"BINAIRE",desc:"1 (indépendant) ou 0 (dépendant / a besoin d'aide)"},{key:"ÉCHELLE",desc:"6 = fonction complète · 4 = modérée · ≤2 = atteinte sévère"},{key:"COMBINÉ",desc:"Souvent associé à Lawton AIVQ"}]},
  LAWTON:{name:"INDICE DE LAWTON — AIVQ",body:"Lawton IADL Scale (Lawton & Brody, 1969, Gerontologist 9:179–186) — mesure les activités instrumentales d'ordre supérieur nécessaires à la vie autonome en communauté. Huit items — téléphone, courses, préparation des repas, ménage, lessive, transport, médication et finances — chacun 0 ou 1. Cotation moderne unisexe 0–8 (plus bas = plus atteint). Le déclin des AIVQ précède typiquement de plusieurs années celui des AVQ basiques dans la démence.",rules:[{key:"CLINICIEN",desc:"Coté par observation ou rapport d'informant"},{key:"8 ITEMS",desc:"Téléphone · Courses · Cuisine · Ménage · Lessive · Transport · Médication · Finances"},{key:"0–8",desc:"Chaque item 0 (dépendant) ou 1 (indépendant)"},{key:"MARQ. PRÉCOCE",desc:"Déclin AIVQ précède celui des AVQ basiques"},{key:"COMBINÉ",desc:"Souvent associé à Katz AVQ"}]},
  SPR:{name:"RECONNAISSANCE DE SONDE SÉRIELLE",body:"Reconnaissance de sonde sérielle visuelle — paradigme de Sands & Wright (1980, Science 209:938; JEP:ABP 6:386). Une liste de N éléments distincts est présentée un à la fois, suivie d'une sonde unique. Le sujet juge si la sonde était dans la liste. Avec des stimuli uniques par essai, la fonction de position sérielle montre primauté + récence classiques, reflétant la comparaison singe/humain classique. Stimuli de formes procédurales par défaut; chargez votre propre ensemble d'images via le bouton ⚛ IMAGES PERSONNALISÉES de la barre latérale.",rules:[{key:'ÉTUDE',desc:'Observez N éléments montrés un à la fois (défauts: 10 puis 20)'},{key:'SONDE',desc:'Un élément apparaît après l\'intervalle de rétention'},{key:'F / ←CLIC',desc:'OUI — la sonde était dans la liste'},{key:'J / →CLIC',desc:'NON — la sonde n\'était pas dans la liste'},{key:'POSITION',desc:'Les sondes échantillonnent toutes les positions également'},{key:'SORTIE',desc:'Fonction de position sérielle · d-prime · TR'}]},
  'SPR-A':{name:"RECONNAISSANCE DE SONDE SÉRIELLE (AUDITIVE)",body:"Analogue auditif du paradigme de sonde sérielle de Sands & Wright. Une liste de N stimuli sonores distincts est présentée séquentiellement, puis une sonde unique est jouée. Le sujet juge si la sonde était dans la liste. Nécessite des fichiers son chargés par l'utilisateur: ouvrez ♬ AUDIO PERSONNALISÉ depuis la barre latérale et ajoutez au moins 8 fichiers au pool SPR-A.",rules:[{key:'CHARGER',desc:'Chargez ≥8 sons via ♬ AUDIO PERSONNALISÉ → POOL SPR-A'},{key:'ÉCOUTER',desc:'Écoutez N sons un à la fois'},{key:'SONDE',desc:'Un son est rejoué après l\'intervalle de rétention'},{key:'F / ←CLIC',desc:'OUI — la sonde était dans la liste'},{key:'J / →CLIC',desc:'NON — la sonde n\'était pas dans la liste'},{key:'SORTIE',desc:'Fonction de position sérielle · d-prime · TR'}]},
  MTS:{name:"APPARIEMENT À L'ÉCHANTILLON",body:"Appariement à l'échantillon — paradigme de discrimination de Wright, Santiago, Sands et al. Un stimulus échantillon est présenté, puis un ensemble de 2 à 4 stimuli de comparaison apparaît; le sujet choisit la comparaison correspondant à l'échantillon. En MTS simultané, l'échantillon reste visible pendant le choix; en MTS différé (DMTS), l'échantillon est retiré et un intervalle de rétention intervient avant les comparaisons, sondant la mémoire à court terme. Utilise les mêmes formes procédurales ou le pool ⚛ IMAGES PERSONNALISÉES que SPR.",rules:[{key:'ÉCHANTILLON',desc:'Un seul stimulus échantillon apparaît'},{key:'COMPARAISONS',desc:'2–4 choix apparaissent (un correspond)'},{key:'CHOISIR',desc:'Cliquez sur la correspondance, ou 1 / 2 / 3 / 4'},{key:'SIMULTANÉ',desc:'L\'échantillon reste visible pendant le choix'},{key:'DIFFÉRÉ (DMTS)',desc:'Échantillon caché + intervalle de rétention'},{key:'SORTIE',desc:'Précision · TR · transfert de concept'}]}
};


const PARADIGMS_DE={
  PRL:{name:"PROBABILISTISCHES UMKEHRLERNEN",body:"Wählen Sie zwischen zwei Reizen mit 80/20-Belohnung; der bessere kehrt sich ohne Vorwarnung um. Misst belohnungsbasierte Flexibilität und Feedback-Überwachung (FRN/RewP).",rules:[{key:"F / J",desc:"Wählen Sie den LINKEN (F) oder RECHTEN (J) Reiz"},{key:"80 / 20",desc:"Der gute wird ~80% belohnt, der schlechte ~20%"},{key:"UMKEHR",desc:"Guter und schlechter Reiz tauschen ohne Vorwarnung"},{key:"GEWINN-BLEIB",desc:"Ein einzelner Verlust bedeutet keine falsche Wahl"},{key:"MASSE",desc:"Genauigkeit, Umkehrungen, perseverative Fehler, Gewinn-bleib/Verlust-wechsel"}]},
  DD:{name:"VERZÖGERUNGSDISKONTIERUNG",body:"Wiederholte Wahl zwischen kleiner-früher und größer-später (1000 $); eine Treppe findet den Indifferenzpunkt je Verzögerung und liefert die hyperbolische k und die Fläche unter der Kurve. Misst Impulsivität.",rules:[{key:"F / J",desc:"Wählen Sie die LINKE (F) oder RECHTE (J) Option"},{key:"JETZT vs SPÄTER",desc:"Ein kleinerer Betrag jetzt oder 1000 $ nach Verzögerung"},{key:"KEINE FALSCHE ANTWORT",desc:"Wählen Sie, was Sie wirklich bevorzugen"},{key:"VERZÖGERUNGEN",desc:"Die Verzögerung wächst von Tagen zu Jahren"},{key:"MASSE",desc:"Hyperbolische k, ln(k), Fläche unter Kurve, % sofort"}]},
  SRTT:{name:"SERIELLE REAKTIONSZEIT",body:"Drücken Sie die Taste des aufleuchtenden Feldes; die Positionen folgen heimlich einer wiederkehrenden Sequenz, sodass die Reaktionen beim impliziten Lernen schneller werden. Ein Zufallsblock zeigt das Lernen.",rules:[{key:"D F J K",desc:"Jedes Feld hat eine Taste — drücken Sie die leuchtende"},{key:"SEIEN SIE SCHNELL",desc:"Antworten Sie schnell und genau"},{key:"VERBORGENE SEQUENZ",desc:"Die Positionen folgen einem wiederkehrenden Muster"},{key:"ZUFALLSBLOCK",desc:"Ein Block ist zufällig — die RZ steigt bei Lernen"},{key:"MASSE",desc:"RZ pro Block, Lerneffekt, Genauigkeit"}]},
  BART:{name:"BALLON-RISIKO-AUFGABE (BART)",body:"Pumpen Sie einen Ballon für Geld auf; jeder Pump bringt Belohnung, erhöht aber das Platzrisiko. Kassieren Sie jederzeit; platzt er, ist dieser Ballon verloren. Die bereinigte mittlere Pumpzahl misst Risikobereitschaft.",rules:[{key:"PUMPEN (F)",desc:"Ballon aufpumpen — jeder Pump bringt Geld und Risiko"},{key:"KASSIEREN (J)",desc:"Geld des aktuellen Ballons sichern und weiter"},{key:"PLATZEN",desc:"Platzt er vor dem Kassieren, ist das Geld weg"},{key:"ABWÄGUNG",desc:"Mehr Belohnung braucht mehr Pumps, mehr Risiko"},{key:"MASSE",desc:"Bereinigte Pumps, Gesamtgewinn, Platzer"}]},
  OSPAN:{name:"OPERATIONSSPANNE",body:"Wechseln Sie zwischen dem Beurteilen einer kurzen Gleichung (wahr/falsch) und dem Merken eines Buchstabens; danach die Buchstaben in Reihenfolge abrufen. Das Standardmaß der komplexen Arbeitsgedächtniskapazität.",rules:[{key:"GLEICHUNG",desc:"Ist die Rechnung korrekt? — WAHR (T) / FALSCH (F)"},{key:"BUCHSTABE",desc:"Merken Sie sich den nach jeder Gleichung gezeigten Buchstaben"},{key:"ABRUF",desc:"Am Ende die Buchstaben in ursprünglicher Reihenfolge anklicken"},{key:"TEMPO HALTEN",desc:"Schnell antworten — nicht zum Wiederholen anhalten"},{key:"MASSE",desc:"Teil- und Absolutwert, Rechengenauigkeit"}]},
  TBIS:{name:"ZEITLICHE BISEKTION",body:"Lernen Sie eine KURZE und eine LANGE Standarddauer, dann beurteilen Sie, ob jeder Blitz eher KURZ oder LANG war. Liefert den Bisektionspunkt und das Weber-Verhältnis; bindet die CNV ein.",rules:[{key:"LERNEN",desc:"Sehen Sie zuerst die KURZEN und LANGEN Standards"},{key:"BEURTEILEN",desc:"War der Blitz eher KURZ (F) oder LANG (J)?"},{key:"KEIN FEEDBACK",desc:"Testdurchgänge geben kein Feedback — vertrauen Sie der Wahrnehmung"},{key:"NICHT ZÄHLEN",desc:"Die Dauern sind kurz — nach Gefühl urteilen"},{key:"MASSE",desc:"Bisektionspunkt, Weber-Verhältnis, Anteil-lang-Kurve"}]},

  GNG:{name:"GEH / GEH NICHT",body:"Die Go/No-Go-Aufgabe misst Reaktionshemmung — Ihre Fähigkeit, eine vorherrschende Handlung zu unterdrücken. Ein Stimulus erscheint in der Mitte des Rasters. Reagieren Sie schnell auf Go-Stimuli (●) und halten Sie jede Reaktion bei No-Go-Stimuli (○) zurück.",rules:[{key:"F / LEERTASTE",desc:"GEHEN — auf den Zielreiz reagieren"},{key:"J",desc:"NICHT GEHEN — Reaktion zurückhalten"},{key:"● (gefüllt)",desc:"GEHEN — so schnell wie möglich reagieren"},{key:"○ (leer)",desc:"NICHT GEHEN — nicht reagieren"},{key:"TIMEOUT",desc:"Keine Reaktion in 1,5 s gilt als Zurückhaltung"},{key:"RATE",desc:"70 % Go-Versuche · 30 % No-Go-Versuche"}]},
  NBACK:{name:"N-ZURÜCK (1-zurück)",body:"Die N-Back-Aufgabe misst das Arbeitsgedächtnis-Updating. In jedem Durchgang erscheint ein Buchstabe. Entscheiden Sie, ob der aktuelle Buchstabe mit dem vor genau einem Durchgang gezeigten übereinstimmt.",rules:[{key:"F / LEERTASTE",desc:"ÜBEREINSTIMMUNG — Buchstabe stimmt mit N Schritten zurück überein"},{key:"J",desc:"KEINE ÜBEREINSTIMMUNG — Buchstabe stimmt nicht überein"},{key:"ERSTER VERSUCH",desc:"Keine korrekte Antwort möglich — Buchstaben nur beobachten"},{key:"RATE",desc:"~35 % der Versuche sind Übereinstimmungen"}]},
  SPATIAL:{name:"RÄUMLICHE AUFMERKSAMKEIT",body:"Misst visuoräumliche Verarbeitung und selektive Aufmerksamkeit. In jedem Versuch wird eine Zelle in einem 3×3-Raster hervorgehoben. Klicken Sie so schnell und genau wie möglich auf die markierte Zelle.",rules:[{key:"KLICK",desc:"Auf die hervorgehobene Zelle so schnell wie möglich klicken"},{key:"GENAUIGKEIT",desc:"Klick auf falsche Zelle zählt als Fehler"},{key:"TIMEOUT",desc:"Keine Reaktion in 1,5 s wird als Fehler gezählt"}]},
  POSNER:{name:"POSNER-PARADIGMA",body:"Misst verdeckte räumliche Aufmerksamkeit. Ein Hinweisreiz lenkt die Aufmerksamkeit auf den wahrscheinlichen Ort eines Ziels. Schnellere Reaktionszeiten bei gültigen Versuchen zeigen den Aufmerksamkeitsvorteil.",rules:[{key:"LEERTASTE / F",desc:"Reagieren wenn das Ziel erscheint"},{key:"ENDOGEN",desc:"Zentraler Pfeil — freiwillige Aufmerksamkeitsverlagerung"},{key:"EXOGEN",desc:"Peripheres Aufblinken — automatische Erfassung"},{key:"VORTEIL",desc:"Vorteil = Ungültige RZ − Gültige RZ"}]},
  VRT:{name:"VISUELLE WIEDERERKENNUNG",body:"Misst das visuelle episodische Gedächtnis. Während der Lernphase wird eine Matrix abstrakter geometrischer Muster gezeigt. Nach einem Retentionsintervall erscheinen Paare — ein gelerntes und ein neues Muster. Erkennen Sie, welches Sie gesehen haben.",rules:[{key:"LERNEN",desc:"Matrix der Muster ansehen — 4 Sekunden pro Mustersatz"},{key:"TEST",desc:"Zwei Muster erscheinen — auf das gelernte klicken"},{key:"METRIKEN",desc:"Trefferrate, falsche Alarme, d’ und RZ"}]},
  CSR:{name:"KONTRASTUMKEHR",body:"Ein Schachbrettmuster kehrt kontinuierlich seine Polarität um. Die meisten Umkehrungen sind Standard. Ein kleiner Anteil sind ZIEL-Umkehrungen — eine 45°-Drehung für genau einen Zyklus. Reagieren Sie so schnell wie möglich.",rules:[{key:"LEERTASTE",desc:"Drücken wenn ZIEL-Umkehrung (gedreht) erkannt"},{key:"BEOBACHTEN",desc:"Schachbrett kehrt kontinuierlich um — Fixation halten"},{key:"STANDARD",desc:"Die meisten Umkehrungen sind Standard — NICHT reagieren"},{key:"ZIEL",desc:"Gelegentliche 45°-Drehung — sofort LEERTASTE drücken"}]},
  P300:{name:"AUDITIVES P300",body:"Das auditive Oddball-Paradigma elizitiert die P300-ERP-Komponente. Häufige Standardtöne werden präsentiert, mit seltenen Oddball-Tönen gemischt. Erkennen Sie den Oddball-Ton und drücken Sie die LEERTASTE. Standard: 1000 Hz; Oddball: 2000 Hz.",rules:[{key:"LEERTASTE",desc:"Drücken beim SELTENEN (hohen) Ton"},{key:"STANDARD",desc:"1000 Hz (häufig) — NICHT reagieren"},{key:"ODDBALL",desc:"2000 Hz (selten, 20 %) — LEERTASTE drücken"},{key:"KOPFHÖRER",desc:"Kopfhörer für beste Frequenzdiskrimination verwenden"}]},
  STB:{name:"STERNBERG-GEDÄCHTNIS",body:"Misst die Suchgeschwindigkeit im verbalen Arbeitsgedächtnis. Ein Set von Buchstaben wird EINZELN präsentiert — je 1 Sekunde. Nach einem Retentionsintervall erscheint ein Probe-Buchstabe. Antworten Sie JA, wenn er im Set war.",rules:[{key:"F / LEERTASTE",desc:"JA — Probe-Buchstabe WAR im Set"},{key:"J",desc:"NEIN — Probe-Buchstabe war NICHT im Set"},{key:"LERNEN",desc:"Buchstaben erscheinen EINZELN — je 1 s"},{key:"GESCHWINDIGKEIT",desc:"So schnell und genau wie möglich antworten"}]},
  WCST:{name:"KARTEN-SORTIERTEST (WCST)",body:"Basiert auf dem Wisconsin Card Sorting Test. Eine Stimulus-Karte muss einer Zielkarte nach einer Regel zugeordnet werden — Farbe, Form oder Anzahl. Die Regel wird nie mitgeteilt und ändert sich nach 10 aufeinanderfolgenden korrekten Sortierungen ohne Warnung.",rules:[{key:"KLICK",desc:"Auf eine Zielkarte klicken um Stimulus-Karte zuzuordnen"},{key:"REGELN",desc:"Drei mögliche Regeln: Farbe · Form · Anzahl der Symbole"},{key:"ÄNDERUNG",desc:"Regel ändert sich still nach 10 richtigen Antworten"},{key:"PERSEVER.",desc:"Perseverationsfehler = alte Regel nach Wechsel weiternutzen"}]},
  RECALL:{name:"WORTERKENNUNG",body:"Misst episodisches Gedächtnis per Wiedererkennung (einfacher zu beantworten als freier Abruf). Eine Liste gebräuchlicher Wörter wird einzeln gelernt. Nach einer kurzen Ablenkungsaufgabe werden Wörter einzeln gezeigt: einige waren auf der Liste (ALT), andere sind neu (NEU). Entscheiden Sie, ob Sie jedes Wort beim Lernen gesehen haben. Treffer, Fehlalarme und d′ werden erfasst.",rules:[{key:"F = ALT",desc:"F drücken, wenn das Wort auf der Liste WAR"},{key:"J = NEU",desc:"J drücken, wenn das Wort NICHT auf der Liste war"},{key:"LERNEN",desc:"Jedes Wort aufmerksam lesen — je 2 Sekunden"},{key:"ABLENKUNG",desc:"Rechenaufgaben 30 s lösen"}]},
  TMT:{name:"TRAIL-MAKING-TEST",body:"Verbinden Sie nummerierte und buchstabierte Kreise in Reihenfolge. Teil A misst Verarbeitungsgeschwindigkeit; Teil B misst kognitive Flexibilität.",rules:[{key:"KLICK",desc:"Kreise in der richtigen Reihenfolge so schnell wie möglich anklicken"},{key:"TEIL A",desc:"Zahlen 1 → 2 → 3… in aufsteigender Reihenfolge verbinden"},{key:"TEIL B",desc:"Abwechseln: 1 → A → 2 → B → 3 → C…"},{key:"FEHLER",desc:"Fehler werden gezählt — richtiges Ziel anklicken zum Fortfahren"}]},
  DSC:{name:"DIGIT-SYMBOL-KODIERUNG",body:"Ein Schlüssel verbindet jede Ziffer 1–9 mit einem eindeutigen Symbol. Fügen Sie das entsprechende Symbol so schnell wie möglich ein. 90-Sekunden-Aufgabe — klassisches Maß für Verarbeitungsgeschwindigkeit (WAIS-IV).",rules:[{key:"AUSwÄHLEN",desc:"Symbol in der Palette anklicken um es auszuwählen"},{key:"EINfÜGEN",desc:"Leeres Feld anklicken um Symbol einzufügen"},{key:"TASTEN 1–9",desc:"Zifferntaste drücken um Symbol schnell auszuwählen"},{key:"ZEIT",desc:"90-Sekunden-Limit — von links nach rechts so schnell wie möglich"}]},
  PNT:{name:"BILDBENENNUNG",body:"Eine detaillierte Illustration eines gebräuchlichen Objekts erscheint. Benennen Sie es so schnell und genau wie möglich laut. Die Spracherkennung bewertet Ihre Antwort.",rules:[{key:"SPRECHEN",desc:"Das Objekt laut so schnell wie möglich benennen"},{key:"MIKROFON",desc:"Mikrofon-Schaltfläche anklicken um Aufnahme zu starten"},{key:"BEWERTUNG",desc:"Korrekt wenn Antwort mit Zielname oder Synonym übereinstimmt"}]},
  MRT:{name:"MENTALE ROTATION",body:"Zwei 3D-Würfelstrukturen erscheinen nebeneinander. Entscheiden Sie, ob sie dieselbe Form in einem anderen Winkel oder Spiegelbilder sind. Die RZ nimmt mit dem Rotationswinkel zu.",rules:[{key:"F / LEERTASTE",desc:"GLEICH — gleiche Form, anderer Winkel"},{key:"J",desc:"VERSCHIEDEN — Spiegelbild"},{key:"ROTATION",desc:"Langsamere RZ = größerer Rotationswinkel"}]},
  FLANKER:{name:"ERIKSEN-FLANKER",body:"Pfeile erscheinen in einer Reihe. Reagieren Sie auf die Richtung des MITTLEREN Pfeils und ignorieren Sie die Flanker-Pfeile. Inkongruente Versuche (entgegengesetzte Flanker) sind langsamer.",rules:[{key:"F / LEERTASTE",desc:"LINKS — mittlerer Pfeil zeigt nach links"},{key:"J",desc:"RECHTS — mittlerer Pfeil zeigt nach rechts"},{key:"IGNORIEREN",desc:"Flanker-Pfeile ignorieren"},{key:"INKONGRUENT",desc:"Entgegengesetzte Flanker — langsamer, mehr Fehler"}]},
  STOP:{name:"STOP-SIGNAL",body:"Reagieren Sie auf Links/Rechts-Pfeile so schnell wie möglich. Bei ~25 % der Versuche ertönt ein Stopsignal — halten Sie die Reaktion zurück. Die SSRT misst die Geschwindigkeit der inhibitorischen Kontrolle.",rules:[{key:"F / LEERTASTE",desc:"Auf LINKS-Pfeil reagieren"},{key:"J",desc:"Auf RECHTS-Pfeil reagieren"},{key:"STOP",desc:"Stopsignal — Reaktion sofort zurückhalten"},{key:"GESCHWINDIGKEIT",desc:"So schnell wie möglich reagieren"}]},
  STROOP:{name:"STROOP-FARBE-WORT",body:"Misst selektive Aufmerksamkeit und kognitive Kontrolle. Ein Farbwort erscheint in kongruenter, inkongruenter oder neutraler Tinte. Reagieren Sie auf die TINTENFARBE — ignorieren Sie das Wort.",rules:[{key:"F / G / H / J",desc:"TINTENFARBE: F=Rot · G=Grün · H=Blau · J=Gelb"},{key:"WORT IGNORIEREN",desc:"Das gedruckte Wort ist ein Distraktor"},{key:"KONGRUENT",desc:"Wort und Farbe stimmen überein — schneller"},{key:"INKONGRUENT",desc:"Konflikt Wort/Farbe — zeigt Stroop-Interferenz"}]},
  DST:{name:"ZIFFERNSPANNE",body:"Misst die Kapazität des verbalen Arbeitsgedächtnisses. Ziffernfolgen werden einzeln präsentiert. Vorwärts: in gleicher Reihenfolge wiederholen. Rückwärts: in umgekehrter Reihenfolge.",rules:[{key:"BEOBACHTEN",desc:"Ziffern erscheinen einzeln"},{key:"VORWÄRTS",desc:"Ziffern in GLEICHER Reihenfolge wiederholen"},{key:"RÜCKWÄRTS",desc:"Ziffern in UMGEKEHRTER Reihenfolge wiederholen"},{key:"BESTÄTIGEN",desc:"✓ oder Enter drücken wenn Folge vollständig"}]},
  FTT:{name:"FINGER-TAPPING",body:"Misst motorische Geschwindigkeit und Koordination. Drei Subtests: dominante Hand, nicht-dominante Hand und Alternieren (F dann J). Jeder Subtest: drei 10-Sekunden-Versuche. Nach Halstead-Reitan.",rules:[{key:"DOMINANT: LEERTASTE/F",desc:"Dominante Hand — so schnell wie möglich tippen"},{key:"NICHT-DOM.: LEERTASTE/J",desc:"Nicht-dominante Hand — gleich, andere Hand"},{key:"ALT.: F dann J",desc:"Strenge Links-Rechts-Abfolge, F dann J"},{key:"10 SEKUNDEN",desc:"Jeder Versuch dauert 10 Sekunden"}]},
  N400:{name:"N400 SEMANTISCHES PRIMING",body:"Ein Satz erscheint Wort für Wort. Das letzte Wort passt natürlich in den Satz (kongruent) oder ist semantisch inkongruent. Entscheiden Sie, ob das letzte Wort in den Kontext passt.",rules:[{key:"F / LEERTASTE",desc:"PASST — das letzte Wort ist kohärent"},{key:"J",desc:"PASST NICHT — das letzte Wort ist inkongruent"},{key:"LESEN",desc:"Jedes Wort aufmerksam lesen"},{key:"GESCHWINDIGKEIT",desc:"So schnell und genau wie möglich antworten"}]},
  MMN:{name:"MISMATCH-NEGATIVITÄT",body:"Passives auditives Oddball-Paradigma — keine Reaktion erforderlich. Ein Strom von Standard-Tönen wird mit seltenen Abweichungen gespielt. Die MMN spiegelt präattentive auditive Diskrimination wider. Einfach zuhören.",rules:[{key:"PASSIV",desc:"Keine Reaktion erforderlich — nur zuhören"},{key:"STANDARD",desc:"Häufiger Ton — die meisten Töne"},{key:"ABWEICHUNG",desc:"Seltener Ton anderer Frequenz — elizitiert MMN"}]},
  P600:{name:"P600 SYNTAKTISCH",body:"Sätze erscheinen Wort für Wort. Das letzte Wort vervollständigt den Satz korrekt oder enthält eine syntaktische Verletzung. Entscheiden Sie, ob der Satz grammatikalisch korrekt ist.",rules:[{key:"F / LEERTASTE",desc:"KORREKT — grammatikalisch korrekt"},{key:"J",desc:"FALSCH — enthält eine syntaktische Verletzung"},{key:"GESCHWINDIGKEIT",desc:"So schnell und genau wie möglich antworten"}]},
  ERN:{name:"FEHLER-NEGATIVITÄT",body:"Schnelle Wahlaufgabe: auf den mittleren Pfeil in 500 ms reagieren. Fehler sind bei dieser Geschwindigkeit unvermeidlich. Die ERN spiegelt die Fehlerkontrolle des anterioren cingulären Kortex wider.",rules:[{key:"F / LEERTASTE",desc:"LINKS — Pfeil zeigt nach links"},{key:"J",desc:"RECHTS — Pfeil zeigt nach rechts"},{key:"GESCHWINDIGKEIT",desc:"In 500 ms reagieren — Fehler sind Teil des Paradigmas"}]},
  CNV:{name:"KONTINGENTE NEGATIVE VARIATION",body:"Ein Warnton (S1) signalisiert, dass ein imperatives Stimulus (S2) nach einem festen Intervall folgt. Auf S2 mit LEERTASTE reagieren. Bei Catch-Versuchen (kein S2) Reaktion zurückhalten.",rules:[{key:"S1 (Ton)",desc:"Warnsignal — ein kurzer Ton"},{key:"S2 (Kreis)",desc:"Imperatives Stimulus — so schnell wie möglich LEERTASTE drücken"},{key:"CATCH-VERSUCH",desc:"Einige Versuche ohne S2 — Reaktion zurückhalten"},{key:"LEERTASTE",desc:"Einzige gültige Antworttaste"}]},

  // ── EKP-Varianten ───────────────────────────────────────
  ORN:{name:"ORN — OBJEKTBEZOGENE NEGATIVIERUNG",body:"Object-Related Negativity — fronto-zentrale Negativierung ~150–250 ms auf einen gleichzeitigen Zweitonkomplex, der als zwei auditive Objekte wahrgenommen wird. Spiegelt die Analyse der auditiven Szene und die Bildung auditiver Objekte wider.",rules:[{key:"PASSIV",desc:"Über Kopfhörer hören — keine aktive Aufgabe erforderlich"},{key:"STANDARD",desc:"Ein einzelner Ton — ein einheitliches auditives Objekt"},{key:"DEVIANT",desc:"Verstimmung ~3 % — als zwei Objekte wahrgenommen"},{key:"ORN",desc:"Fronto-zentrale Negativierung ~150–250 ms"}]},
  MMNSP:{name:"MMN — SPRACHE",body:"Passiver phonemischer Kontrast: /ba/ Standard vs. /pa/ Deviant. Sprach-MMN, verwendet in Dyslexie- und Sprachentwicklungsforschung.",rules:[{key:"HÖREN",desc:"Passiv über Kopfhörer"},{key:"STANDARD",desc:"/ba/ (85 %)"},{key:"DEVIANT",desc:"/pa/ (15 %) — unterscheidet sich im Artikulationsort"},{key:"MMN",desc:"Fronto-zentrale Negativierung ~150–250 ms"}]},
  PMN:{name:"PMN — PHONOLOGISCHE NEGATIVIERUNG",body:"Phonological Mismatch Negativity — frühe links-anteriore Negativierung ~270 ms bei phonologischer Inkongruenz in gesprochenen Wörtern. Unterscheidet sich von der semantischen N400; spiegelt lexikalischen Zugang auf phonemischer Ebene wider.",rules:[{key:"HÖREN",desc:"Wörter über Kopfhörer"},{key:"ERWARTET",desc:"Finales Phonem konsistent mit Prime"},{key:"VERLETZUNG",desc:"Phonologisch inkompatibles Finale"},{key:"PMN",desc:"Links-anteriore Negativierung ~270 ms"}]},
  ELAN:{name:"ELAN — FRÜHE LINKS-ANT. NEGATIV.",body:"Early Left Anterior Negativity — ultra-frühe (100–200 ms) Antwort auf syntaktische Verletzung, der P600 vorausgehend. Links-anteriore Skalplokalisation. Indexiert automatische Erkennung von Phrasenstrukturverletzungen.",rules:[{key:"F / LEER",desc:"GRAMMATIKALISCH"},{key:"J",desc:"VERLETZUNG — Phrasenstruktur gestört"},{key:"ELAN",desc:"Links-anteriore Negativierung 100–200 ms"},{key:"P600",desc:"Oft begleitet von später Positivierung 500–800 ms"}]},
  LAN:{name:"LAN — LINKS-ANT. NEGATIVIERUNG",body:"Left Anterior Negativity — morphosyntaktische Antwort ~300–500 ms auf Kongruenzverletzungen (Numerus, Genus, Kasus). Links lateralisiert; trennt syntaktische von semantischer Verarbeitung. Unterscheidet sich von der N400; spezifisch für Grammatik.",rules:[{key:"F / LEER",desc:"GRAMMATIKALISCH"},{key:"J",desc:"KONGRUENZFEHLER"},{key:"LAN",desc:"Links-anteriore Negativierung ~300–500 ms"},{key:"SPEZIFISCH",desc:"Grammatik, nicht Semantik"}]},
  CPS:{name:"CPS — CLOSURE POSITIVE SHIFT",body:"Closure Positive Shift — bilaterale Positivierung an prosodischen Phrasengrenzen in gesprochener Sprache ~200–500 ms. Spiegelt syntaktisches Parsen intonatorischer Phrasen wider; unterscheidet sich von syntaktischer und semantischer Verarbeitung.",rules:[{key:"HÖREN",desc:"Gesprochene Sätze mit prosodischen Grenzen"},{key:"GRENZE",desc:"Intonatorische Pause/Längung"},{key:"CPS",desc:"Bilaterale Positivierung ~200–500 ms"},{key:"PASSIV",desc:"Keine aktive Aufgabe erforderlich"}]},
  ASSR:{name:"ASSR 40 Hz",body:"Auditory Steady-State Response — amplitudenmodulierter Ton bei 40 Hz. Das Gehirn synchronisiert sich phasengekoppelt bei 40 Hz im Gamma-Band. Beeinträchtigt bei Schizophrenie; indexiert kortikale GABAerge Funktion.",rules:[{key:"HÖREN",desc:"40-Hz-AM-Ton über Kopfhörer"},{key:"PASSIV",desc:"Keine aktive Aufgabe erforderlich"},{key:"ANTWORT",desc:"Deutlicher Peak bei 40 Hz im EEG-Spektrum"},{key:"KLINIK",desc:"Reduziert bei Schizophrenie"}]},
  ABR:{name:"ABR — HIRNSTAMMANTWORT",body:"Auditory Brainstem Response — Fernfeldpotentiale auf einen Klick. Die Wellen I–V spiegeln aufeinanderfolgende auditive Hirnstammkerne wider. Die Latenz der Welle V ist der klinische Goldstandard für Hörschwelle und auditive Neuropathie.",rules:[{key:"KLICKS",desc:"Hochfrequente Klicks über Einsteckhörer"},{key:"PASSIV",desc:"Oft im Schlaf oder unter Sedierung"},{key:"WELLEN I–V",desc:"5 Peaks in den ersten 10 ms"},{key:"KLINIK",desc:"V-Latenz — Hörschwelle / Neuropathie"}]},
  N1P2:{name:"N1-P2 — AUDITIVE ANTWORT",body:"N1-P2 — Vertex-Negativierung ~100 ms und Positivierung ~200 ms bei Tonbeginn. Die Amplitude wird durch Aufmerksamkeit, Habituation und Arousal moduliert. Basale kortikale auditive Antwort.",rules:[{key:"HÖREN",desc:"Tonreihe über Kopfhörer"},{key:"N1",desc:"Vertex-Negativierung ~100 ms"},{key:"P2",desc:"Vertex-Positivierung ~200 ms"},{key:"MODULATION",desc:"Verstärkt sich mit Aufmerksamkeit"}]},
  RON:{name:"RON — REORIENTIERUNGSNEGATIVIERUNG",body:"Reorienting Negativity — fronto-zentrale Negativierung ~400–600 ms nach einem unerwarteten Devianten, der die Aufmerksamkeit gefangen hat. Spiegelt die Rückorientierung der Aufmerksamkeit zum Hauptkanal nach Ablenkung durch einen neuen Klang wider.",rules:[{key:"HÖREN",desc:"Aktive Aufgabe mit auditiven Devianten"},{key:"FANG",desc:"Ein neuer Klang fängt Aufmerksamkeit"},{key:"REORIENT.",desc:"Aufmerksamkeit kehrt zur Aufgabe zurück"},{key:"RON",desc:"Fronto-zentrale Negativierung ~400–600 ms"}]},
  P1N1:{name:"P1/N1 — RÄUMLICHE AUFMERKSAMKEIT",body:"Bilateraler Blitz mit gerichteter räumlicher Aufmerksamkeit. P1 verstärkt ~100 ms über dem zum beachteten Ort kontralateralen okzipitalen Kortex; N1 verstärkt ~160 ms. Kanonisches EKP der verdeckten räumlichen Aufmerksamkeit (Hillyard et al., 1973).",rules:[{key:"FIXATION",desc:"Zentrum fixieren — Augen nicht bewegen"},{key:"HINWEIS",desc:"Pfeil links / rechts"},{key:"ZIEL",desc:"Blitz links oder rechts"},{key:"P1/N1",desc:"Kontralateral okzipital, beachtungsseitig verstärkt"}]},
  N170:{name:"N170 — GESICHT / OBJEKT",body:"N170 — okzipito-temporale Negativierung ~170 ms, selektiv größer für Gesichter. Schematische, prozedural generierte Gesichter und geometrische Objekte werden präsentiert; antworten Sie „Gesicht“ oder „Objekt“. Der Gesichtsinversionseffekt (größere/spätere N170 für umgekehrte Gesichter) ist ein robuster Marker der konfiguralen Gesichtsverarbeitung.",rules:[{key:"F",desc:"GESICHT — Stimulus ist ein Gesicht"},{key:"J",desc:"OBJEKT — Stimulus ist eine geometrische Figur"},{key:"N170",desc:"Okzipito-temporale Negativierung ~170 ms, größer für Gesichter"},{key:"INVERSION",desc:"Umgekehrte Gesichter ergeben größere, spätere N170"}]},
  VPP:{name:"VPP — VERTEX-POSITIVIERUNG",body:"Vertex Positive Potential — positives Pendant der N170 am medialen Vertex (Cz); Peak ~170 ms bei Gesichtern; gesichtsspezifisch. Spiegelt dieselbe fusiforme Quelle wie die N170 wider, aber mit umgekehrter Polarität bei Cz.",rules:[{key:"F",desc:"GESICHT"},{key:"J",desc:"OBJEKT"},{key:"VPP",desc:"Positiver Peak bei Cz ~170 ms"},{key:"QUELLE",desc:"Gyrus fusiformis — dasselbe Dipol wie N170"}]},
  N2PC:{name:"N2pc — AUFMERKSAMKEITSFANG",body:"Visuelle Suche mit bilateraler Anordnung. Kontralaterale posteriore Negativierung ~220–300 ms (PO7/PO8) markiert verdeckten Aufmerksamkeitsfang durch das Ziel. Kanonischer Index der Zielselektion in der räumlichen Suche.",rules:[{key:"FIXATION",desc:"Zentrum fixieren — Augen nicht bewegen"},{key:"SUCHE",desc:"Ziel links oder rechts zwischen Distraktoren"},{key:"ANTWORT",desc:"Zieleigenschaft (Farbe/Orientierung)"},{key:"N2pc",desc:"Kontralaterale posteriore Negativierung ~220–300 ms"}]},
  N2B:{name:"N2b — ZIEL-N2",body:"N2b — fronto-zentrale Negativierung ~200–300 ms bei Zielen; Aufmerksamkeit und Stimuluskategorisierung. Trennbar von N2pc (räumlich) und N200 (inhibitorisch). Spiegelt die Diskrepanz zwischen Stimulus und Zielvorlage wider.",rules:[{key:"F",desc:"ZIEL — Stimulus passt zur Kategorie"},{key:"J",desc:"KEIN ZIEL"},{key:"N2b",desc:"Fronto-zentrale Negativierung ~200–300 ms"},{key:"UNTERSCH.",desc:"Weder räumlich (N2pc) noch inhibitorisch (No-Go N2)"}]},
  PD:{name:"Pd — DISTRAKTOR-POSITIVIERUNG",body:"Pd — kontralaterale Positivierung ~200–300 ms bei aktiv unterdrückten Distraktoren. Spiegelbild der N2pc; spiegelt top-down-Suppression des Aufmerksamkeitsfangs wider.",rules:[{key:"FIXATION",desc:"Zentrum fixieren"},{key:"DISTRAKTOR",desc:"Auffälliger Distraktor erfordert Suppression"},{key:"ANTWORT",desc:"Auf zentrales Ziel oder von der anderen Seite"},{key:"Pd",desc:"Kontralaterale Positivierung zum Distraktor ~200–300 ms"}]},
  N300:{name:"N300 — OBJEKT-PRIMING",body:"Emoji-Prime → Ziel. Zentro-okzipitale Negativierung ~300 ms kleiner für kategorial kongruente Paare. Spiegelt frühe kategoriale Verarbeitung wider, der semantischen N400 vorausgehend.",rules:[{key:"PRIME",desc:"Emoji 500 ms"},{key:"ZIEL",desc:"Emoji — gleiche oder andere Kategorie"},{key:"F",desc:"PASST zur Kategorie"},{key:"J",desc:"PASST NICHT"},{key:"N300",desc:"Zentro-okzipitale Negativierung ~300 ms"}]},
  P100:{name:"P100 — VISUELL EVOZIERTES BLITZ-POTENTIAL",body:"Kurze Vollfeld-Luminanzblitze (~80 ms, weiß auf schwarzem Hintergrund) bei ISI von 1–2 s erzeugen das P100 — einen positiven okzipitalen Peak ~80–130 ms, im primären visuellen Kortex (V1) generiert. Unterscheidet sich von Pattern-onset-PVEP: Blitzstimuli aktivieren breitere Netzhautregionen und erzeugen eine robustere, aber räumlich weniger spezifische Antwort. Enthält gelegentliche Catch-Versuche mit gedämpften Blitzen, die LEERTASTE-Antwort erfordern.",rules:[{key:"FIXATION",desc:"Zentrales Kreuz fixieren — Blick nicht abwenden"},{key:"PASSIV",desc:"Die meisten Versuche erfordern keine Antwort — nur beobachten"},{key:"CATCH",desc:"LEERTASTE: nur drücken, wenn Sie einen GEDÄMPFTEN Blitz sehen (10 % der Versuche)"},{key:"P100",desc:"Positiver okzipitaler Peak ~80–130 ms bei O1/Oz/O2"},{key:"V1",desc:"In V1 generiert; spiegelt Netzhaut- und Sehbahnintegrität wider"}]},
  SSVEP:{name:"SSVEP",body:"Steady-State Visual Evoked Potential — flackernde Flecken bei 10 Hz (links) und 15 Hz (rechts) erzeugen scharfe Spektralpeaks im okzipitalen EEG genau bei diesen Frequenzen. In BCI und Aufmerksamkeitsforschung verwendet.",rules:[{key:"FIXATION",desc:"Zentrales Kreuz ansehen"},{key:"AUFMERKS.",desc:"Konzentrieren Sie sich auf eine flackernde Seite"},{key:"SPEKTRUM",desc:"Peak bei 10 Hz / 15 Hz im okzipitalen EEG"},{key:"BCI",desc:"Selektive Aufmerksamkeit moduliert die Amplitude"}]},
  ERAN:{name:"ERAN — FRÜHE RECHTS-ANT. NEGATIV.",body:"Early Right Anterior Negativity — Verletzung der musikalischen Syntax ~150–200 ms; rechts lateralisiert; Erkennung deplatzierter Akkorde; musikalisches Pendant der ELAN für Sprachsyntax; sensitiv für musikalisches Training.",rules:[{key:"HÖREN",desc:"Akkordfolgen über Kopfhörer"},{key:"ERWARTET",desc:"Tonika oder Subdominante"},{key:"VERLETZUNG",desc:"Neapolitanischer Akkord / deplatzierte Tonart"},{key:"ERAN",desc:"Rechts-anteriore Negativierung ~150–200 ms"}]},
  BP:{name:"BEREITSCHAFTSPOTENTIAL",body:"Bereitschaftspotential — selbstinitiierte willkürliche Tastendrücke. Langsame negative Steigung über Cz, die ~1500 ms VOR der Bewegung beginnt. Libets Paradigma des freien Willens.",rules:[{key:"LEERTASTE",desc:"Nach eigenem Tempo drücken — unregelmäßig"},{key:"INTERVALL",desc:"≥4 s zwischen Drücken — Selbstrhythmus"},{key:"BP",desc:"Langsame Negativierung über Cz, Beginn ~1500 ms vor Bewegung"},{key:"LIBET",desc:"Paradigma des „freien Willens“"}]},
  LRP:{name:"LRP — LATERALISIERTES BP",body:"Lateralized Readiness Potential — „Pfeil links/rechts“-Aufgabe. Kontralaterale motorische Negativierung ~300–500 ms indexiert handspezifische Bewegungsvorbereitung.",rules:[{key:"F",desc:"Pfeil links → linke Hand"},{key:"J",desc:"Pfeil rechts → rechte Hand"},{key:"LRP",desc:"Kontralaterale kortikomotorische Negativierung 300–500 ms"},{key:"MARKER",desc:"Vorbereitung der manuellen Antwort"}]},
  CNVW:{name:"CNV — WARNSIGNAL",body:"S1 (Warnung) → S2 (Imperativ) mit Intervall von 1000 ms. Die langsame CNV-Negativierung wächst zwischen ihnen über frontalem Kortex; die Amplitude spiegelt motorische Vorbereitung und zeitliche Erwartung wider. Unterscheidet sich vom Bereitschaftspotential.",rules:[{key:"S1",desc:"Warnton"},{key:"S2",desc:"Imperativer Stimulus nach 1000 ms"},{key:"LEERTASTE",desc:"So schnell wie möglich auf S2 reagieren"},{key:"CNV",desc:"Langsame Negativierung zwischen S1 und S2 über frontalem Kortex"}]},
  PE:{name:"Pe — FEHLERPOSITIVIERUNG",body:"Error Positivity — zentro-parietale Positivierung ~200–400 ms nach ERN. Spiegelt bewusste Fehlerwahrnehmung wider; trennbar von ERN bei Anosognosie; vermittelt durch anterioren cingulären Kortex und Insula.",rules:[{key:"F / J",desc:"Schnelle Forced-Choice"},{key:"FEHLER",desc:"Nach falscher Antwort"},{key:"ERN",desc:"Frontale Negativierung 0–100 ms"},{key:"Pe",desc:"Zentro-parietale Positivierung 200–400 ms — Fehlerwahrnehmung"}]},
  N200:{name:"N200 / NoGo N2",body:"Zweialternativen-Go/No-Go-Aufgabe; fronto-zentraler negativer Peak ~200 ms, selektiv größer in No-Go-Versuchen — spiegelt aktive Suppression der dominanten Antwort wider.",rules:[{key:"F / LEER",desc:"GO — auf GOLDENEN Kreis reagieren"},{key:"STOP",desc:"NO-GO — auf BLAUEN Kreis nicht drücken"},{key:"N200",desc:"Fronto-zentraler negativer Peak ~200 ms, größer in No-Go"},{key:"VERHÄLTNIS",desc:"75 % Go · 25 % No-Go"}]},
  MFN:{name:"MFN — MEDIAL-FRONTALE NEGATIV.",body:"Medial Frontal Negativity — fronto-zentrale Negativierung ~200–350 ms bei Antwortkonflikt und Vorhersagediskrepanz in nicht-motorischen Kontexten. Verwandt mit der N2-Familie; sensitiv für Inkongruenz und Erwartungsverletzung.",rules:[{key:"ERWARTUNG",desc:"Prädiktor-Stimulus"},{key:"DISKREPANZ",desc:"Finale verletzt Vorhersage"},{key:"MFN",desc:"Fronto-zentrale Negativierung ~200–350 ms"},{key:"N2-FAMILIE",desc:"Verwandt mit ERN, N200"}]},
  P3A:{name:"P3a — NEUARTIGKEIT",body:"Drei-Stimuli-Oddball — trennt die P3a (frontale Neuartigkeit) von der P3b (parietale Zielerkennung). Seltene neue / unvorhersehbare Klänge erzeugen P3a; Ziele erzeugen P3b.",rules:[{key:"STANDARD",desc:"1000 Hz (80 %)"},{key:"ZIEL",desc:"2000 Hz (10 %) — LEERTASTE drücken"},{key:"NEU",desc:"Zufällige neue Klänge (10 %) — ignorieren"},{key:"P3a",desc:"Frontale Positivierung bei Neuartigkeit ~250–350 ms"},{key:"P3b",desc:"Parietale Positivierung bei Zielen ~300–500 ms"}]},
  REWP:{name:"RewP / FRN",body:"Reward Positivity — feedbackbezogenes EKP ~250 ms; Gewinn erzeugt Positivierung, Verlust Negativierung; orbitofrontale Quelle. In Forschung zu Depression, Sucht und Entscheidungsfindung verwendet.",rules:[{key:"WAHL",desc:"Wählen Sie eine von zwei Türen"},{key:"FEEDBACK",desc:"Gewinn oder Verlust nach 600 ms"},{key:"RewP",desc:"Fronto-zentrale Positivierung ~250 ms bei Gewinn"},{key:"FRN",desc:"Gleiches Zeitintervall — Negativierung bei Verlust"}]},
  LPC:{name:"LPC — SPÄTE POSITIVE KOMPONENTE",body:"Late Positive Component — parietale Positivierung 500–800 ms bei episodischer Wiedererkennung. Spiegelt Erinnerung (recollection) wider; trennbar von Familiarität (FN400); groß für sicher erinnerte Items.",rules:[{key:"ALT",desc:"Item zuvor gelernt"},{key:"NEU",desc:"Item nicht gelernt"},{key:"LPC",desc:"Parietale Positivierung 500–800 ms"},{key:"ERINNER.",desc:"Größer für sichere „Ich erinnere mich“-Antworten"}]},
  FRN:{name:"FRN — FEEDBACK-NEGATIVIERUNG",body:"Feedback-Related Negativity — fronto-zentrale Negativierung ~200–300 ms nach negativen Ergebnissen; Signal für Belohnungsvorhersagefehler; unterscheidet sich von ERN (eigene Fehler); sensitiv für Depression und Sucht.",rules:[{key:"WAHL",desc:"Erraten Sie, welche Tür gewinnt"},{key:"FEEDBACK",desc:"Gewinn oder Verlust nach 600 ms"},{key:"FRN",desc:"Fronto-zentrale Negativierung ~200–300 ms bei Verlust"},{key:"SIGNAL",desc:"Belohnungsvorhersagefehler"}]},
  SCP:{name:"SCP — LANGSAME POTENTIALE",body:"Slow Cortical Potentials — anhaltende DC-Verschiebungen während kognitiver Belastung. In Neurofeedback und BCI verwendet. Die willkürliche Regulation der SCP ist die Grundlage der klassischen BCIs von Birbaumer.",rules:[{key:"BELASTUNG",desc:"Mentale Anstrengung über den Block halten"},{key:"RUHE",desc:"Zwischen Blöcken entspannen"},{key:"SCP",desc:"Langsame DC-Verschiebung — Sekunden"},{key:"BCI",desc:"Willkürliche Regulation mit Training möglich"}]},
  CDA:{name:"CDA — KONTRALAT. VERZÖG. AKTIV.",body:"Contralateral Delayed Activity — anhaltende kontralaterale Negativierung über posteriorem Kortex während der Aufrechterhaltung visueller Items im Arbeitsgedächtnis. Die Amplitude erreicht ein Plateau an der AG-Kapazität (~3–4 Items).",rules:[{key:"FIXATION",desc:"Zentrum fixieren"},{key:"LERNEN",desc:"Farbige Quadrate einer Seite merken"},{key:"RETENTION",desc:"1-s-Verzögerung"},{key:"CDA",desc:"Kontralaterale posteriore Negativierung während Verzögerung"},{key:"KAPAZITÄT",desc:"Plateau bei ~3–4 Items = AG-Kapazität"}]},
  THALPHA:{name:"THETA / ALPHA",body:"Spontane EEG-Rhythmen in Ruhe. Frontale Theta (4–8 Hz) steigt mit kognitiver Belastung; okzipitale Alpha (8–13 Hz) dominiert bei geschlossenen Augen. Basaler Indikator des kortikalen Zustands.",rules:[{key:"AUGEN",desc:"Wechseln Sie „offen“ und „geschlossen“"},{key:"ALPHA",desc:"Okzipitaler Peak 8–13 Hz bei geschlossenen Augen"},{key:"THETA",desc:"Frontal 4–8 Hz unter Belastung"},{key:"ZUSTAND",desc:"Alpha-Blockade bei Öffnung der Augen"}]},
  P50:{name:"P50 — SENSORISCHES GATING",body:"Doppelklick-Paradigma: zwei auditive Klicks mit 500-ms-Intervall. Die P50 auf S2 wird normalerweise unterdrückt (~50 % der S1). Das S2/S1-Verhältnis indexiert sensorisches Gating; beeinträchtigt bei Schizophrenie.",rules:[{key:"KLICKS",desc:"Klickpaare im 500-ms-Intervall über Kopfhörer"},{key:"PASSIV",desc:"Keine aktive Aufgabe erforderlich"},{key:"P50",desc:"Positiver Peak ~50 ms bei jedem Klick"},{key:"FILTER",desc:"S2/S1 normalerweise <0,5"}]},
  N100:{name:"N100 / P200",body:"Auditive N100 — Vertex-Negativierung ~100 ms bei Tönen; P200 — Positivierung ~200 ms. Die Amplitude spiegelt Intensität und Habituation wider. Basaler kortikaler auditiver Komplex.",rules:[{key:"HÖREN",desc:"Tonreihe über Kopfhörer"},{key:"N100",desc:"Vertex-Negativierung ~100 ms"},{key:"P200",desc:"Vertex-Positivierung ~200 ms"},{key:"HABITUAT.",desc:"Amplitude nimmt bei Wiederholung ab"}]},
  LDAEP:{name:"LDAEP — LAUTSTÄRKEABHÄNGIGKEIT",body:"Loudness Dependence of Auditory Evoked Potentials — Steigung der N1/P2-Amplitude in Abhängigkeit der Tonlautstärke. Eine starke Steigung korreliert mit niedriger serotonerger Aktivität; in der Depressionsforschung verwendet.",rules:[{key:"HÖREN",desc:"Töne in 5 Lautstärkestufen"},{key:"PASSIV",desc:"Keine aktive Aufgabe erforderlich"},{key:"STEIGUNG",desc:"N1/P2-Amplitude vs. Lautstärke"},{key:"SEROTONIN",desc:"Starke Steigung → niedriges 5-HT"}]},
  C1:{name:"C1 — FRÜHE VISUELLE KOMPONENTE",body:"Frühestes visuelles EKP, ~60–100 ms. Generiert in V1 (primärer visueller Kortex). Die Polarität hängt vom Gesichtsfeld ab: positiv für unteres Feld, negativ für oberes Feld. Marker der retinotopen Verarbeitung.",rules:[{key:"FIXATION",desc:"Zentrum fixieren"},{key:"FELD",desc:"Stimuli im oberen oder unteren Gesichtsfeld"},{key:"C1",desc:"Okzipitaler Peak ~60–100 ms"},{key:"QUELLE",desc:"V1 — primärer visueller Kortex"}]},

  // ── Sensorische Tests ─────────────────────────────────
  SNELLEN:{name:"SNELLEN-TAFEL",body:"Sehschärfe-Screening. Standard-Snellen-Tafel mit abnehmender Buchstabengröße. Lesen Sie jede Zeile aus Sichtdistanz; die kleinste korrekt gelesene Zeile bestimmt die Sehschärfe im Format 20/X (oder 6/X metrisch).",rules:[{key:"DISTANZ",desc:"Setzen Sie sich ~3 m vom Bildschirm entfernt"},{key:"LESEN",desc:"Sprechen Sie die Buchstaben jeder Zeile aus"},{key:"SCHWELLE",desc:"Kleinste korrekt gelesene Zeile"},{key:"SCREENING",desc:"Ersetzt nicht eine optometrische Untersuchung"}]},
  ISHIHARA:{name:"ISHIHARA-TAFELN",body:"Screening des Farbsehens auf Rot-Grün-Anomalie. In Punktmustern versteckte Zahlen; sichtbar für normale Trichromaten, aber nicht für Personen mit Protanopie oder Deuteranopie. Klassisches Screening-Instrument.",rules:[{key:"BETRACHTEN",desc:"Identifizieren Sie die Zahl auf jeder Tafel"},{key:"ZEIT",desc:"~3 s pro Tafel"},{key:"R/G-DEFIZIT",desc:"Protan / Deutan — häufigste Formen"},{key:"SCREENING",desc:"Ersetzt keine vollständige Farbuntersuchung"}]},
  SEASHORE:{name:"SEASHORE — RHYTHMUS",body:"Test der rhythmischen Fähigkeiten nach Seashore. Hören Sie Paare rhythmischer Sequenzen; entscheiden Sie, ob sie identisch oder verschieden sind. Misst auditive Diskrimination, insbesondere rhythmische Verarbeitung. In der Bewertung musikalischer Fähigkeiten und Amusie verwendet.",rules:[{key:"HÖREN",desc:"Rhythmuspaar über Kopfhörer"},{key:"F",desc:"IDENTISCH"},{key:"J",desc:"VERSCHIEDEN"},{key:"AMUSIE",desc:"Reduzierte Leistung bei kongenitaler Amusie"}]},
  AUDIOM:{name:"AUDIOMETRIE — REINTON",body:"Hörschwellen-Screening. Töne werden in verschiedenen Frequenzen (250 Hz – 8 kHz) und Intensitäten präsentiert; drücken bei Erkennung. Das Audiogramm zeichnet die Schwelle pro Frequenz auf — basaler Indikator der Hörgesundheit.",rules:[{key:"KOPFHÖRER",desc:"Kalibrierte Kopfhörer obligatorisch"},{key:"STILLER RAUM",desc:"Hintergrundgeräusche minimieren"},{key:"LEERTASTE",desc:"Bei jedem erkannten Ton drücken"},{key:"SCHWELLE",desc:"Niedrigster erkannter Pegel pro Frequenz"}]},
  GABOR:{name:"GABOR — KONTRASTSCHWELLE",body:"Gabor-Flecken (Sinusgitter in Gauß-Hülle) bei variablem Kontrast. Treppenmethode bestimmt die Erkennungsschwelle. Klassisches Werkzeug zur Messung der Kontrastempfindlichkeitsfunktion.",rules:[{key:"FIXATION",desc:"Zentrales Kreuz fixieren"},{key:"F / J",desc:"Gitter links oder rechts"},{key:"TREPPE",desc:"Kontrast passt sich der Leistung an"},{key:"SCHWELLE",desc:"~75 % korrekte Antworten"}]},

  // ── Aufmerksamkeit und Vigilanz ─────────────────────────────
  CPT:{name:"CPT — DAUERLEISTUNG",body:"Continuous Performance Test (CPT-AX) — Aufrechterhaltung der Aufmerksamkeit/Vigilanz. Buchstaben werden kontinuierlich präsentiert; Ziel ist X nach A. Erfasst ADHS-Effekte und Post-SHT-Müdigkeit über die Zeit.",rules:[{key:"LEERTASTE",desc:"Nur drücken, wenn X unmittelbar A folgt"},{key:"IGNORIEREN",desc:"Alle anderen Buchstaben und Paare"},{key:"FEHLER",desc:"Auslassungen (Unaufmerksamkeit) und Commissions (Impulsivität)"},{key:"DAUER",desc:"~10–15 min zur Vigilanzabnahme-Erkennung"}]},
  ATTBLINK:{name:"AUFMERKSAMKEITSBLINK",body:"RSVP mit Buchstaben; T2 wird verfehlt, wenn sie 200–500 ms nach T1 folgt; zeitliches Unaufmerksamkeitsfenster nach Ressourcenerschöpfung. Klassischer Index der zeitlichen Grenzen der Aufmerksamkeit.",rules:[{key:"BEOBACHTEN",desc:"Schneller Buchstabenstrom im Zentrum"},{key:"T1",desc:"Erstes Ziel — weißer Buchstabe"},{key:"T2",desc:"Zweites Ziel — Buchstabe X"},{key:"BLINK",desc:"T2 verfehlt bei Lag 200–500 ms"}]},
  DUALTASK:{name:"DOPPELAUFGABE",body:"Gleichzeitige Buchstabenüberwachung + räumliche Verfolgung; die Doppelaufgabenkosten indexieren geteilte Aufmerksamkeit und zentralen Engpass. Indikator der Aufmerksamkeitskapazität.",rules:[{key:"AUFGABE 1",desc:"Zielbuchstaben identifizieren"},{key:"AUFGABE 2",desc:"Bewegtem Punkt folgen"},{key:"KOSTEN",desc:"Doppel- vs. Einzelleistung"},{key:"ENGPASS",desc:"Spiegelt Grenze der zentralen Verarbeitung wider"}]},
  SART:{name:"SART — VIGILANZ",body:"Sustained Attention to Response Task — auf jede Ziffer außer 3 reagieren. Die Commission-Rate indexiert Gedankenwandern; sensitiv für SHT und ADHS. Paradigma der „Antwortzurückhaltung“.",rules:[{key:"LEERTASTE",desc:"Auf jede Ziffer drücken"},{key:"STOP",desc:"NICHT auf 3 drücken"},{key:"COMMISSIONS",desc:"Fehler bei 3 = Gedankenwandern"},{key:"DAUER",desc:"~5 min — Vigilanzabnahme"}]},
  UFOV:{name:"UFOV — NUTZBARES SEHFELD",body:"Useful Field of View — zentrale Diskrimination + peripherale Erkennung; geteilte Aufmerksamkeit; Prädiktor der Fahrsicherheit; sensitiv für Altern und SHT.",rules:[{key:"ZENTRUM",desc:"Zentralen Stimulus identifizieren"},{key:"PERIPHERIE",desc:"Peripheren Stimulus lokalisieren"},{key:"ZEIT",desc:"Kurze Darbietungen (~100 ms)"},{key:"FAHREN",desc:"Reduziertes UFOV → erhöhtes Unfallrisiko"}]},

  // ── Arbeitsgedächtnis und Verarbeitung ──────────────────
  SPATWM:{name:"RÄUMLICHES ARBEITSGEDÄCHTNIS",body:"Merken Sie sich die Positionen markierter Quadrate nach einer Verzögerung; unterscheidet sich von der verbalen Spanne; analog zum Corsi-Block-Tapping. Bewertet das rechtsparietale Arbeitsgedächtnissystem.",rules:[{key:"LERNEN",desc:"Quadrate werden sequenziell hervorgehoben"},{key:"VERZÖGER.",desc:"Kurzes Retentionsintervall"},{key:"WIEDERG.",desc:"Klicken Sie dieselben Quadrate in der Reihenfolge"},{key:"SPANNE",desc:"Längste korrekte Sequenz"}]},
  DIGCAN:{name:"ZIFFERN-DURCHSTREICHEN",body:"Durchsuchen Sie ein Gitter zufälliger Ziffern und markieren Sie jedes Ziel (z. B. 3 und 7); Gesamtzahl richtig, Auslassungen, falsche Alarme und Zeit — Indikatoren der anhaltenden Aufmerksamkeit und Verarbeitungsgeschwindigkeit.",rules:[{key:"KLICK",desc:"Auf Ziele klicken (3 und 7)"},{key:"IGNORIEREN",desc:"Alle anderen Ziffern"},{key:"ZEIT",desc:"So schnell wie möglich arbeiten"},{key:"METRIKEN",desc:"Genauigkeit, Auslassungen, falsche Alarme, Zeit"}]},
  STAR:{name:"STERN-DURCHSTREICHEN",body:"Finden und klicken Sie auf jeden kleinen Zielstern zwischen Distraktoren (große Sterne, Buchstaben, kurze Wörter); insgesamt 52 Ziele. Klassisches Screening des Behavioural Inattention Test (BIT) für linksseitigen Hemineglect (post-Schlaganfall, Läsionen). Score: gefundene Ziele, Asymmetrie (L vs. R), Zeit.",rules:[{key:"KLICK",desc:"Klicken Sie nur auf kleine Sterne"},{key:"IGNORIEREN",desc:"Große Sterne, Buchstaben, Wörter"},{key:"ASYMMETRIE",desc:"L/R-Differenz bei gefundenen Zielen"},{key:"NEGLECT",desc:"Ziele einer Seite konstant verfehlt"}]},
  TASKSWITCH:{name:"AUFGABENWECHSEL",body:"Wechseln Sie zwischen zwei Klassifikationsregeln mit Hinweis; die Wechselkosten = RT-Verlangsamung in Wechselversuchen; misst kognitive Flexibilität und Aufgabenrekonfiguration.",rules:[{key:"HINWEIS",desc:"Rahmenfarbe zeigt aktuelle Regel"},{key:"REGEL 1",desc:"Nach Parität klassifizieren"},{key:"REGEL 2",desc:"Nach Größe klassifizieren"},{key:"KOSTEN",desc:"RT Wechsel − RT Wiederholung"}]},
  EMOTSTROOP:{name:"EMOTIONALER STROOP",body:"Benennen Sie die Tintenfarbe emotionaler vs. neutraler Wörter; affektive Interferenz verlangsamt die RT für emotionale Wörter; misst Aufmerksamkeits-Bias zu Bedrohung oder traumarelevanten Inhalten.",rules:[{key:"FARBE",desc:"Auf TINTENFARBE reagieren"},{key:"IGNORIEREN",desc:"Wortbedeutung"},{key:"EMOTION",desc:"Bedrohliche/negative Wörter verlangsamen RT"},{key:"BIAS",desc:"Marker für Angst, PTBS, Phobien"}]},
  SUBITIZE:{name:"SUBITISIEREN",body:"Zählen Sie schnell 1–8 Punkte; flache RT-Steigung 1–4 (Subitisieren) vs. steile Steigung 4+ (Zählen); Verarbeitungsgeschwindigkeit numerischer Mengen. Unterscheidet vornumerisches und numerisches Denken.",rules:[{key:"BETRACHTEN",desc:"Punkte erscheinen kurz"},{key:"ANTWORT",desc:"Geben Sie die Anzahl ein"},{key:"SUBITISE",desc:"1–4: schnelle, flache RT"},{key:"ZÄHLEN",desc:"5+: RT steigt linear"}]},

  // ── Exekutivfunktionen ──────────────────────────────────
  TOL:{name:"TURM VON LONDON",body:"Bewegen Sie farbige Scheiben, um eine Zielkonfiguration in minimalen Zügen zu erreichen; misst exekutive Planung, präfrontale Inhibition und Problemlösung; sensitiv für Frontallappendysfunktion.",rules:[{key:"ZIEL",desc:"Erreichen Sie die gezeigte Konfiguration"},{key:"MINIMUM",desc:"Verwenden Sie minimale Zuganzahl"},{key:"REGELN",desc:"Eine Scheibe pro Zug; Stangen mit begrenzter Kapazität"},{key:"PLANUNG",desc:"Planen Sie vor dem Bewegen"}]},
  MATRIX:{name:"MATRIZEN-REASONING",body:"Vervollständigen Sie das Muster; nonverbale fluide Intelligenz; kulturneutral; sensitiv für globalen kognitiven Abbau. Analog zu den Raven-Matrizen.",rules:[{key:"BETRACHTEN",desc:"3×3-Matrix mit einer fehlenden Zelle"},{key:"WAHL",desc:"Element wählen, das Muster vervollständigt"},{key:"REGELN",desc:"Zeilen/Spalten folgen logischen Transformationen"},{key:"Gf",desc:"Marker fluider Intelligenz"}]},
  META:{name:"METAKOGNITION",body:"Konfidenzschätzungen zu Gedächtnisentscheidungen; d-Prime Typ 2; metakognitive Effizienz; beeinträchtigt bei Schizophrenie und Anosognosie. Misst den Zusammenhang zwischen Genauigkeit und Konfidenz.",rules:[{key:"LERNEN",desc:"Wörter merken"},{key:"TEST",desc:"ALT oder NEU?"},{key:"KONFIDENZ",desc:"Bewerten Sie Konfidenz 1–6"},{key:"d′2",desc:"RT-Differenz für sicher korrekt vs. Fehler"}]},

  // ── Verarbeitungsgeschwindigkeit ──────────────────────────
  SYMSEARCH:{name:"SYMBOLSUCHE",body:"WAIS-IV-Subtest — durchsuchen Sie eine Symbolreihe und entscheiden Sie, ob eines der zwei Ziele erscheint; Index der Verarbeitungsgeschwindigkeit zusammen mit Ziffern-Symbol-Kodierung.",rules:[{key:"ZIEL",desc:"Zwei Zielsymbole links"},{key:"SUCHE",desc:"5 Symbole rechts"},{key:"JA / NEIN",desc:"Erscheint ein Ziel unter den 5?"},{key:"GESCHW.",desc:"120 s — so viele wie möglich"}]},
  PASAT:{name:"PASAT",body:"Paced Auditory Serial Addition Test — einzelne Ziffern werden in festem Rhythmus präsentiert; addieren Sie jede neue Ziffer zur unmittelbar vorherigen; misst geteilte Aufmerksamkeit, AG-Aktualisierung und Verarbeitungsgeschwindigkeit; Standard in der MS- und SHT-Bewertung.",rules:[{key:"HÖREN",desc:"Einzelne Ziffern über Kopfhörer"},{key:"ADDIEREN",desc:"Aktuelle Ziffer zur VORHERIGEN addieren (nicht zur Summe)"},{key:"RHYTHM.",desc:"Eine Ziffer alle 3 s (oder 2 s)"},{key:"STANDARD",desc:"In MSFC-MS-Batterie verwendet"}]},

  // ── Gedächtnis ─────────────────────────────────────────────
  RAVLT:{name:"RAVLT — VERBALES LERNEN",body:"Rey Auditory Verbal Learning Test — 15-Wort-Liste 5-mal gelesen; Interferenzliste; sofortiger Abruf; 20-min-verzögerter Abruf; Lernkurve, Primacy-/Recency-Effekte, proaktive Interferenz, Retention — Goldstandard der verbalen Gedächtnisbewertung.",rules:[{key:"5 VERSUCHE",desc:"Gleiche Liste 5-mal"},{key:"INTERFER.",desc:"Liste B — einmalig, Distraktor"},{key:"VERZÖGER.",desc:"Abruf nach 20 min"},{key:"WIEDERER.",desc:"Finaler Wiedererkennungsversuch"}]},
  CVLT:{name:"CVLT — KALIFORNIEN-LERNEN",body:"California Verbal Learning Test — 16-Wort-„Einkaufsliste“ aus 4 semantischen Kategorien; 5 Lernversuche; kurz- und langverzögerter freier und gestützter Abruf; Wiedererkennung; misst Lernkurve, semantisches Clustering, Serienposition und Retention.",rules:[{key:"5 VERSUCHE",desc:"Gleiche Liste 5-mal"},{key:"KATEGORIEN",desc:"4 semantische Kategorien, verdeckt"},{key:"CLUSTER",desc:"Spontane semantische Gruppierung"},{key:"HINWEISE",desc:"Gestützter Abruf nach Kategorie"}]},
  PAL:{name:"PAARASSOZIATIONSLERNEN",body:"Lernen Sie Wort-Wort-Paare; gestützter Abruf; misst hippocampale assoziative Bindung; sensitiv für frühe Alzheimer-Krankheit.",rules:[{key:"LERNEN",desc:"Wortpaare gemeinsam präsentiert"},{key:"TEST",desc:"Erstes Wort → zweites eingeben"},{key:"HIPPOCAMP.",desc:"Bindung abhängig vom MTL"},{key:"AD-MARKER",desc:"Früher Abbau bei Alzheimer-Krankheit"}]},
  SRCMEM:{name:"QUELLENGEDÄCHTNIS",body:"Merken Sie sich nicht nur was, sondern wo Sie es gelernt haben; Frontallappenfunktion; trennt Erinnerung von Familiarität. Bewertet nicht das Item selbst, sondern seinen Kontext.",rules:[{key:"LERNEN",desc:"Wörter in zwei verschiedenen Schriften/Farben"},{key:"ALT?",desc:"Zuerst: haben Sie das Wort gesehen?"},{key:"QUELLE?",desc:"Dann: welche Schrift/Farbe?"},{key:"FRONTAL",desc:"Frontale Läsionen reduzieren Quellengedächtnis"}]},
  PROSMEM:{name:"PROSPEKTIVES GEDÄCHTNIS",body:"Erinnern Sie sich daran, eine Taste zu drücken, wenn ein Ziel während einer laufenden Aufgabe erscheint; oft beeinträchtigt bei SHT und Altern. „Gedächtnis der Absichten“.",rules:[{key:"LAUFEND",desc:"Lexikalische Entscheidung durchführen"},{key:"ABSICHT",desc:"Wenn „SCHIFF“ erscheint — Q drücken"},{key:"SELTEN",desc:"Ziel ist selten (~5 %)"},{key:"PLAN-GED.",desc:"Präfrontale Funktion"}]},
  SEMFLUENCY:{name:"SEMANTISCHE FLÜSSIGKEIT",body:"Nennen Sie so viele Tiere/Lebensmittel/Werkzeuge wie möglich in 60 s; Gesamtsumme und Clustering-Indizes indexieren die Integrität von Frontal-/Temporallappen.",rules:[{key:"60 SEKUNDEN",desc:"Nennen Sie so viele wie möglich"},{key:"KATEGORIE",desc:"Z. B.: Tiere"},{key:"CLUSTER",desc:"Semantisch verwandte Gruppen"},{key:"WECHSEL",desc:"Übergänge zwischen Unterkategorien"}]},
  PHONFLUE:{name:"PHONEM. FLÜSSIGKEIT (FAS)",body:"Nennen Sie so viele Wörter wie möglich, die mit F, dann A, dann S beginnen, je 60 s; phonemische Flüssigkeit indexiert Frontallappenintegrität und Geschwindigkeit des lexikalischen Zugangs; unterscheidet sich von semantischer Flüssigkeit.",rules:[{key:"60 SEKUNDEN",desc:"Pro Buchstabe"},{key:"BUCHSTABEN",desc:"F, dann A, dann S"},{key:"AUSNAHMEN",desc:"Keine Eigennamen oder Wortstammverwandten"},{key:"FRONTAL",desc:"Sensitiv für Frontaldysfunktion"}]},

  // ── Sprache und Lexikon ──────────────────────────────────
  LEXDEC:{name:"LEXIKALISCHE ENTSCHEIDUNG",body:"Wort vs. Nicht-Wort so schnell wie möglich; die RT hängt von Wortfrequenz, Bildhaftigkeit und orthographischer Nachbarschaftsgröße ab. Standardaufgabe der Psycholinguistik.",rules:[{key:"F",desc:"WORT"},{key:"J",desc:"NICHT-WORT"},{key:"GESCHW.",desc:"Schnell reagieren"},{key:"FREQUENZ",desc:"Häufige Wörter → schneller"}]},
  BNT:{name:"BOSTON NAMING TEST",body:"Benennen Sie Strichzeichnungen von Objekten; abgestufte Schwierigkeit; sensitiv für Temporallappenschäden und Alzheimer-Krankheit. Goldstandard der Benenn-Bewertung.",rules:[{key:"MIKROFON",desc:"Mikrofon aktivieren"},{key:"NAME",desc:"Objektname laut aussprechen"},{key:"ABSTUFUNG",desc:"Von leicht zu schwer"},{key:"KRITERIUM",desc:"6 aufeinanderfolgende Fehler = Stopp"}]},

  // ── Visuoräumlich ────────────────────────────────────────
  JLO:{name:"LINIENORIENTIERUNGSURTEIL",body:"Judgment of Line Orientation (JLO, Benton) — passen Sie zwei Winkelsegmente einem Referenzfächer aus 11 Linien an; misst visuoräumliche Wahrnehmung; rechtsparietale Lappenfunktion; sensitiv für Hemineglect und parietale Läsionen.",rules:[{key:"FÄCHER",desc:"11 Linien, nummeriert 1–11"},{key:"ANPASSEN",desc:"Finden Sie die 2 oberen passenden Linien"},{key:"PARIETAL",desc:"Sensitiv für rechtsparietalen Kortex"},{key:"NEGLECT",desc:"Systematische Verzerrung zur linken Seite"}]},
  TOJ:{name:"ZEITORDNUNGSURTEIL",body:"Welcher Stimulus erschien zuerst? Schätzung des JND per Treppenmethode; sensitiv für temporale Dysfunktion der Basalganglien und des Kleinhirns. Marker der Chronästhesie.",rules:[{key:"ZWEI STIMULI",desc:"Links und rechts mit kleinem SOA"},{key:"F",desc:"LINKS ZUERST"},{key:"J",desc:"RECHTS ZUERST"},{key:"TREPPE",desc:"SOA konvergiert zu 75 % Genauigkeit"}]},

  // ── Soziale Kognition ────────────────────────────────────
  RMET:{name:"GEDANKENLESEN IN DEN AUGEN",body:"Reading the Mind in the Eyes (Baron-Cohen) — folgern Sie den mentalen Zustand aus Fotos der Augenregion; 4-Alternative Forced Choice; misst Theory of Mind / soziale Kognition; beeinträchtigt bei ASS, Alexithymie und Frontalläsionen.",rules:[{key:"BETRACHTEN",desc:"Nur die Augenregion"},{key:"4 WAHL",desc:"Wählen Sie aus 4 mentalen Zuständen"},{key:"ToM",desc:"Theory of Mind / Mentalisierung"},{key:"AUTISMUS",desc:"Reduzierte Leistung bei ASS"}]},
  FER:{name:"GESICHTSEMOTIONS-ERKENNUNG",body:"Identifizieren Sie sechs Basisemotionen; affektive Verarbeitung abhängig von der Amygdala; beeinträchtigt bei Amygdaläsionen und Depression.",rules:[{key:"BETRACHTEN",desc:"Gesicht zeigt eine von 6 Emotionen"},{key:"6 EMOTIONEN",desc:"Freude, Trauer, Wut, Angst, Ekel, Überraschung"},{key:"AMYGDALA",desc:"Besonders Angst und Wut"},{key:"DEPRESSION",desc:"Bias zu negativen Emotionen"}]},

  // ── Entscheidungsfindung ────────────────────────────────
  IGT:{name:"IOWA GAMBLING TASK",body:"Wählen Sie aus vier Stapeln; günstige (C/D) vs. ungünstige (A/B); misst Funktion somatischer Marker / ventromedialer präfrontaler Kortex; beeinträchtigt bei Sucht, vmPFC-Läsionen und Psychopathie.",rules:[{key:"4 STAPEL",desc:"A, B, C, D — verdeckte Verteilungen"},{key:"ENTSCHEID.",desc:"Wählen Sie einen Stapel pro Zug"},{key:"FEEDBACK",desc:"Gewinn + zufälliger Verlust"},{key:"SOM. MARKER",desc:"Gesunde wechseln mit der Zeit zu C/D"}]},

  // ── Screening-Skalen ──────────────────────────────────
  MOCA:{name:"MoCA — MONTREAL COG. ASSESSMENT",body:"Montreal Cognitive Assessment — das am weitesten verbreitete Kurz-Screening-Instrument für kognitive Beeinträchtigung, entwickelt von Nasreddine et al. (2005). Bewertet zehn kognitive Domänen in ~10 Minuten. Maximum 30 Punkte; <26 ist ein positives Screening für leichte kognitive Beeinträchtigung.",rules:[{key:"DOMÄNEN",desc:"10: visuoräumlich, Benennung, Gedächtnis, Aufmerksamkeit, Sprache, Abstraktion, Orientierung"},{key:"PUNKTE",desc:"Gesamt /30 — ≥26 normal; <26 positiv"},{key:"ZEIT",desc:"~10 Minuten"},{key:"BILDUNG",desc:"+1 Punkt bei ≤12 Jahren formaler Bildung"}]},
  CDT:{name:"UHRENZEICHEN-TEST",body:"Zeichnen Sie eine Uhr, die 11:10 zeigt; klassisches Screening für Demenz, exekutive Dysfunktion, Hemineglect, konstruktive Apraxie. Verwendet in MoCA, MMSE-2, Mini-Cog. Browser-Version erfasst vollständige Strichdaten + Ausführungszeit für manuelle Bewertung (Shulman 6-Punkte-Skala oder Sunderland 10-Punkte-Skala).",rules:[{key:"ZEICHNEN",desc:"Uhrziffernblatt mit allen Zahlen"},{key:"ZEIT",desc:"Zeiger auf 11:10 setzen"},{key:"BEWERTUNG",desc:"Shulman 6-Punkte oder Sunderland 10-Punkte"},{key:"STRICHE",desc:"Vollständige Strichdaten werden gespeichert"}]},
  PHQ9:{name:"PHQ-9 — DEPRESSION",body:"PHQ-9 (Kroenke et al., 2001) — das am besten validierte Kurz-Screening für Depression. Neun Items entsprechen den DSM-5-Kriterien für eine Major-Depression-Episode; Bewertung 0–3 über die letzten zwei Wochen. Eine Punktzahl ≥10 hat eine Sensitivität von 88 % und Spezifität von 88 % für Major Depression. Public Domain.",rules:[{key:"2 WOCHEN",desc:"Bewerten Sie, wie oft das Problem in 2 Wochen gestört hat"},{key:"0–3",desc:"0=gar nicht / 1=einzelne Tage / 2=mehr als die Hälfte / 3=fast täglich"},{key:"SCHWELLE",desc:"Gesamt ≥10 = positives Screening"},{key:"ITEM 9",desc:"Suizidgedanken — klinische Nachsorge"},{key:"MONITOR",desc:"Eine Änderung von 5 Punkten ist klinisch signifikant"}]},
  GAD7:{name:"GAD-7 — ANGST",body:"GAD-7 (Spitzer et al., 2006) — Screening für generalisierte Angststörung und Angstschweregrad. Sieben Items 0–3 über die letzten zwei Wochen. Eine Punktzahl ≥10 hat eine Sensitivität von 89 % und Spezifität von 82 % für GAS; screent auch effektiv Panik, soziale Angst und PTBS. Public Domain.",rules:[{key:"2 WOCHEN",desc:"Bewerten Sie die letzten 2 Wochen"},{key:"0–3",desc:"0=gar nicht / 1=einzelne Tage / 2=mehr als die Hälfte / 3=fast täglich"},{key:"SCHWELLE",desc:"≥10 = positives Screening"},{key:"BREIT",desc:"GAS, Panik, soziale Angst, PTBS"},{key:"MONITOR",desc:"Verfolgt Behandlungsantwort"}]},
  PCL5:{name:"PCL-5 — PTBS",body:"PCL-5 (Weathers et al., 2013) — Schweregrad von PTBS-Symptomen nach DSM-5. Zwanzig Items decken Intrusion (5), Vermeidung (2), negative Kognition/Stimmung (7) und Erregung/Reaktivität (6) ab. Jedes wird 0–4 über den letzten Monat bewertet. Die Schwelle ≥33 wird üblicherweise für positives Screening verwendet. Public Domain.",rules:[{key:"MONAT",desc:"Bewerten Sie den letzten Monat"},{key:"0–4",desc:"0=gar nicht / ... / 4=extrem"},{key:"SCHWELLE",desc:"Gesamt ≥33 = wahrscheinliche PTBS"},{key:"CLUSTER",desc:"Intrusion / Vermeidung / Kognition-Stimmung / Erregung"},{key:"DSM-5",desc:"Cluster-Bewertung ergibt provisorische Diagnose"}]},
  AUDIT:{name:"AUDIT — ALKOHOLKONSUM",body:"AUDIT (Saunders et al., 1993, WHO) — Goldstandard des Screenings für Alkoholkonsumstörungen. Zehn Items: Konsum (1–3), Abhängigkeit (4–6), Schaden (7–10). Score 0–7 niedriges Risiko; 8–15 gefährlich; 16–19 schädlich; 20+ wahrscheinliche Abhängigkeit. Public Domain.",rules:[{key:"JAHR",desc:"Bewerten Sie die letzten 12 Monate"},{key:"EINHEIT",desc:"≈10 g Ethanol (1 Bier / 1 Glas Wein)"},{key:"SCHWELLE",desc:"≥8 — gefährlicher / schädlicher Konsum"},{key:"ZONEN",desc:"I (niedrig) / II (gefährlich) / III (schädlich) / IV (Abhängigkeit)"},{key:"WHO",desc:"Globaler Standard"}]},
  ASRS:{name:"ASRS — ERWACHSENEN-ADHS",body:"ASRS-v1.1 (Kessler et al., 2005) — Screening für ADHS bei Erwachsenen. Enthält 18 Fragen, die den DSM-IV-ADHS-Kriterien entsprechen, bewertet 0–4 über die letzten 6 Monate. Teil A (Fragen 1–6) ist ein validiertes Kurz-Screening; ≥4 von 6 Items im schattierten Bereich = positives Screening (Sensitivität 68,7 %, Spezifität 99,5 %). Public Domain.",rules:[{key:"6 MONATE",desc:"Bewerten Sie die letzten 6 Monate"},{key:"TEIL A",desc:"Fragen 1–6 — validiertes Screening"},{key:"SCHWELLE",desc:"≥4 von 6 im schattierten Bereich = positiv"},{key:"BEIDE TYPEN",desc:"Unaufmerksamkeit und Hyperaktivität-Impulsivität"},{key:"ERWACHSENE",desc:"Nicht für Kinder — pädiatrische Skalen verschieden"}]},
  HACHINSKI:{name:"HACHINSKI-ISCHÄMIE-SKALA",body:"Hachinski Ischemic Score (Hachinski, Iliff, Zilhka et al., 1975, Arch Neurol 32:632–637) — 13-Item-Checkliste vom Kliniker auszufüllen, zur Differenzierung von Multiinfarktdemenz (vaskulär) und Alzheimer-Typ-Demenz. Jedes Item wird als vorhanden (1 oder 2 Punkte) oder abwesend (0) bewertet. Gesamtbereich 0–18. ≤4 → primär degenerativ; 5–6 → gemischt; ≥7 → Multiinfarkt.",rules:[{key:"KLINIKER",desc:"Aus Anamnese von Patient und Informant ausgefüllt"},{key:"13 ITEMS",desc:"Vorhanden = 1 oder 2 Punkte; abwesend = 0"},{key:"GEWICHTE",desc:"2 Punkte: plötzlicher Beginn, Fluktuation, Schlaganfälle, fokale Symptome/Zeichen"},{key:"SCHWELLEN",desc:"≤4 = AD-Typ; 5–6 = gemischt; ≥7 = Multiinfarkt"},{key:"ADJUNKT",desc:"Mit Neurobildgebung verwenden"}]},
  KATZ:{name:"KATZ-INDEX — BASIS-ADL",body:"Katz Index (Katz et al., 1963, JAMA 185:914–919) — die am häufigsten verwendete Messung der grundlegenden Aktivitäten des täglichen Lebens. Sechs Items — Baden, Ankleiden, Toilettengang, Transfer, Kontinenz und Ernährung — jedes mit 1 (unabhängig) oder 0 (abhängig) bewertet. Gesamt 0–6. Die Katz-Skala erfasst die fundamentalen Selbstpflegefähigkeiten, die spät in der Demenz und der Behinderungsprogression abnehmen.",rules:[{key:"KLINIKER",desc:"Vom Kliniker oder Informant bewertet"},{key:"6 ITEMS",desc:"Baden · Ankleiden · Toilette · Transfer · Kontinenz · Ernährung"},{key:"BINÄR",desc:"1 (unabhängig) oder 0 (abhängig / Hilfe nötig)"},{key:"SKALA",desc:"6 = volle Funktion · 4 = moderate · ≤2 = schwere Beeinträchtigung"},{key:"GEPAART",desc:"Oft mit Lawton IADL kombiniert"}]},
  LAWTON:{name:"LAWTON-INDEX — IADL",body:"Lawton IADL Scale (Lawton & Brody, 1969, Gerontologist 9:179–186) — misst instrumentelle Aktivitäten höherer Ordnung, die für unabhängiges Leben in der Gemeinschaft erforderlich sind. Acht Items — Telefon, Einkaufen, Essenszubereitung, Haushaltsführung, Wäsche, Transport, Medikation und Finanzen — jedes 0 oder 1. Moderne Unisex-Bewertung 0–8 (niedriger = stärker beeinträchtigt). IADL-Abbau geht typischerweise dem ADL-Abbau bei Demenz um Jahre voraus.",rules:[{key:"KLINIKER",desc:"Nach Beobachtung oder Informanten-Bericht bewertet"},{key:"8 ITEMS",desc:"Telefon · Einkaufen · Kochen · Haushalt · Wäsche · Transport · Medikation · Finanzen"},{key:"0–8",desc:"Jedes Item 0 (abhängig) oder 1 (unabhängig)"},{key:"FRÜHMARKER",desc:"IADL-Abbau geht ADL-Abbau voraus"},{key:"GEPAART",desc:"Oft mit Katz ADL kombiniert"}]},
  SPR:{name:"SERIELLE PROBE-WIEDERERKENNUNG",body:"Visuelle serielle Probe-Wiedererkennung — Paradigma von Sands & Wright (1980, Science 209:938; JEP:ABP 6:386). Eine Liste von N verschiedenen Elementen wird nacheinander präsentiert, gefolgt von einer einzelnen Probe. Der Proband beurteilt, ob die Probe in der Liste war. Mit versuchseindeutigen Stimuli zeigt die serielle Positionsfunktion klassische Primacy + Recency, was den klassischen Affen/Mensch-Vergleich widerspiegelt. Standardmäßig prozedurale Formreize; laden Sie Ihren eigenen Bildsatz über die Schaltfläche ⚛ BENUTZERDEFINIERTE BILDER in der Seitenleiste.",rules:[{key:'STUDIUM',desc:'N Elemente werden einzeln angezeigt (Standard: 10 dann 20)'},{key:'PROBE',desc:'Ein Element erscheint nach dem Retentionsintervall'},{key:'F / ←KLICK',desc:'JA — Probe war in der Liste'},{key:'J / →KLICK',desc:'NEIN — Probe war nicht in der Liste'},{key:'POSITION',desc:'Proben sampeln alle seriellen Positionen gleichmäßig'},{key:'AUSGABE',desc:'Serielle Positionsfunktion · d-prime · RT'}]},
  'SPR-A':{name:"SERIELLE PROBE-WIEDERERKENNUNG (AUDITIV)",body:"Auditives Analogon zum Sands & Wright seriellen Probe-Paradigma. Eine Liste von N verschiedenen Tonreizen wird sequentiell präsentiert, dann wird eine einzelne Probe abgespielt. Der Proband beurteilt, ob die Probe in der Liste war. Benötigt benutzergeladene Audiodateien: öffnen Sie ♬ BENUTZERDEFINIERTES AUDIO aus der Seitenleiste und fügen Sie mindestens 8 Dateien zum SPR-A-Pool hinzu.",rules:[{key:'LADEN',desc:'Laden Sie ≥8 Töne über ♬ BENUTZERDEFINIERTES AUDIO → SPR-A POOL'},{key:'HÖREN',desc:'Hören Sie N Töne einzeln'},{key:'PROBE',desc:'Ein Ton wird nach dem Retentionsintervall erneut abgespielt'},{key:'F / ←KLICK',desc:'JA — Probe war in der Liste'},{key:'J / →KLICK',desc:'NEIN — Probe war nicht in der Liste'},{key:'AUSGABE',desc:'Serielle Positionsfunktion · d-prime · RT'}]},
  MTS:{name:"VERGLEICH MIT DER VORLAGE",body:"Vergleich mit der Vorlage (Matching-to-Sample) — Diskriminationsparadigma von Wright, Santiago, Sands et al. Ein Vorlagereiz wird präsentiert, dann erscheint ein Satz von 2–4 Vergleichsreizen; der Proband wählt den Vergleich, der zur Vorlage passt. Beim simultanen MTS bleibt die Vorlage während der Wahl sichtbar; beim verzögerten MTS (DMTS) wird die Vorlage entfernt und ein Retentionsintervall liegt vor den Vergleichen, was das Kurzzeitgedächtnis prüft. Verwendet dieselben prozeduralen Formen oder den ⚛ BENUTZERDEFINIERTE BILDER-Pool wie SPR.",rules:[{key:'VORLAGE',desc:'Ein einzelner Vorlagereiz erscheint'},{key:'VERGLEICHE',desc:'2–4 Optionen erscheinen (eine passt)'},{key:'WÄHLEN',desc:'Klicken Sie auf die Übereinstimmung, oder 1 / 2 / 3 / 4'},{key:'SIMULTAN',desc:'Vorlage bleibt während der Wahl sichtbar'},{key:'VERZÖGERT (DMTS)',desc:'Vorlage verborgen + Retentionsintervall'},{key:'AUSGABE',desc:'Genauigkeit · RT · Konzepttransfer'}]}
};
const PARADIGMS_ZH={
  PRL:{name:"概率反转学习",body:"在 80/20 奖励下于两个刺激间选择；较优者会无预警反转。测量基于奖励的灵活性与反馈监测（FRN/RewP）。",rules:[{key:"F / J",desc:"选择左侧（F）或右侧（J）刺激"},{key:"80 / 20",desc:"好刺激约 80% 给奖励，差刺激约 20%"},{key:"反转",desc:"好坏刺激会无预警互换"},{key:"赢则留",desc:"单次失败不代表选错"},{key:"指标",desc:"正确率、反转数、固着错误、赢则留/输则换"}]},
  DD:{name:"延迟折扣",body:"在较小较早与较大较晚（$1000）奖励间反复选择；阶梯法在每个延迟找到无差异点，得出双曲 k 与曲线下面积。测量冲动性。",rules:[{key:"F / J",desc:"选择左侧（F）或右侧（J）选项"},{key:"现在 vs 以后",desc:"现在较少金额或延迟后 $1000"},{key:"无对错",desc:"选择你真正偏好的选项"},{key:"延迟",desc:"延迟从数天增至数年"},{key:"指标",desc:"双曲 k、ln(k)、曲线下面积、立即选择%"}]},
  SRTT:{name:"序列反应时",body:"按下亮起方格对应的键；位置暗中遵循重复序列，故随内隐学习而加快。随机区组揭示学习效应。",rules:[{key:"D F J K",desc:"每个方格对应一键——按亮起的那个"},{key:"要快",desc:"又快又准地反应"},{key:"隐藏序列",desc:"位置遵循重复模式"},{key:"随机区组",desc:"某一区组为随机——若已学会则反应时上升"},{key:"指标",desc:"各区组反应时、序列学习效应、正确率"}]},
  BART:{name:"气球模拟风险任务（BART）",body:"充气球赚钱；每次充气增加奖励但提高爆裂风险。可随时兑现；若爆裂则失去该球。校正平均充气次数衡量冒险倾向。",rules:[{key:"充气（F）",desc:"为气球充气——每次充气增加金钱与风险"},{key:"兑现（J）",desc:"保存当前气球的钱并继续"},{key:"爆裂",desc:"若兑现前爆裂，该笔钱即丢失"},{key:"权衡",desc:"更多奖励需更多充气，风险更高"},{key:"指标",desc:"校正充气次数、总收益、爆裂次数"}]},
  OSPAN:{name:"运算广度",body:"交替判断简短算式（对/错）与记忆字母；随后按顺序回忆字母。复杂工作记忆容量的金标准测量。",rules:[{key:"算式",desc:"算式是否正确？——对（T）/错（F）"},{key:"字母",desc:"每个算式后记住出现的字母"},{key:"回忆",desc:"结束时按原始顺序点击字母"},{key:"跟上节奏",desc:"快速作答——不要停下复述"},{key:"指标",desc:"部分分与绝对分、运算正确率"}]},
  TBIS:{name:"时距二分",body:"先学习一个“短”与一个“长”标准时距，再判断每次闪光更接近短还是长。得出二分点与韦伯比（计时精度）；涉及 CNV。",rules:[{key:"学习",desc:"先观看“短”与“长”标准"},{key:"判断",desc:"闪光更短（F）还是更长（J）？"},{key:"无反馈",desc:"测试不给反馈——相信你的知觉"},{key:"勿计数",desc:"时距很短——凭感觉判断"},{key:"指标",desc:"二分点、韦伯比、判长比例曲线"}]},

  GNG:{name:"去/不去",body:"去/不去任务测量反应抑制能力——抹制主导行为的能力。每个试次中，一个刺激出现在中央。对“去”刺激（●）快速反应，对“不去”刺激（○）抹制反应。",rules:[{key:"F / 空格键",desc:"去——对目标刺激反应"},{key:"J",desc:"不去——抑制反应"},{key:"●（实心）",desc:"去——尽快反应"},{key:"○（空心）",desc:"不去——不要反应"},{key:"超时",desc:"1.5秒内无反应计为抑制"},{key:"比例",desc:"70 %去试次 · 30 %不去试次"}]},
  NBACK:{name:"N退后（1退后）",body:"N退后任务测量工作记忆更新能力。每个试次出现一个字母。判断当前字母是否与前一个试次的字母相同。",rules:[{key:"F / 空格键",desc:"匹配——字母与N步前匹配"},{key:"J",desc:"不匹配——字母不匹配"},{key:"第一试次",desc:"无正确答案——仅观察字母"},{key:"比例",desc:"~35 %试次为匹配"}]},
  SPATIAL:{name:"空间注意",body:"测量视空间处理和选择性注意能力。每个试次，3×3网格中的一个格子会被高亮显示。尽快准确地点击高亮格子。",rules:[{key:"点击",desc:"尽快点击高亮格子"},{key:"准确性",desc:"点击错误格子计为错误"},{key:"超时",desc:"1.5秒内无反应计为漏报"}]},
  POSNER:{name:"波斯纳线索范式",body:"测量隐性空间注意。一个线索将注意引向目标可能出现的位置。有效线索试次反应更快表明注意收益。",rules:[{key:"空格键 / F",desc:"目标出现时反应"},{key:"内源性",desc:"中心箭头——自愿注意转移"},{key:"外源性",desc:"外周闪光——自动捕获"},{key:"收益",desc:"收益 = 无效线索RT - 有效线索RT"}]},
  VRT:{name:"视觉识别",body:"测量视觉情节记忆。学习阶段展示抽象几何图案。经保留间隔后，出现一对图案——一个学过的和一个新的。详分辨学过的图案。",rules:[{key:"学习",desc:"观察图案矩阵——每组图案劁4秒"},{key:"测试",desc:"出现两个图案——点击学过的那个"},{key:"指标",desc:"命中率、虚报警率、d’和RT"}]},
  CSR:{name:"对比度翻转",body:"棋盘图案不断地以固定频率翻转极性。大多数翻转是标准的。少数为目标翻转——旋轣45°持续一个周期。尽快反应。",rules:[{key:"空格键",desc:"检测到目标（45°旋转）翻转时按下"},{key:"观察",desc:"棋盘持续翻转——保持中心注视"},{key:"标准",desc:"大多数翻转是标准的——不要反应"},{key:"目标",desc:"偶尔的旋轤45°——立即按空格键"}]},
  P300:{name:"聽觉P300",body:"聽觉奇异范式引发P300脑电成分。频繁的标准音调中夹杂着少数奇异音。检测奇异音并按空格键。标准音：1000 Hz；奇异音：2000 Hz，概獴1 20 %。",rules:[{key:"空格键",desc:"听到稀有（高频）音调时按下"},{key:"标准音",desc:"1000 Hz（频繁）——不要反应"},{key:"奇异音",desc:"2000 Hz（稀有，20 %）——按空格键"},{key:"耳机",desc:"建议使用耳机以获得最佳频率辨别效果"}]},
  STB:{name:"史特恩堡记忆",body:"测量语言工作记忆扫描速度。字母集合每次一个展示，每个1秒。保留间隔后，出现一个探测字母。如果它在集合中就回答是。",rules:[{key:"F / 空格键",desc:"是——探测字母在集合中"},{key:"J",desc:"否——探测字母不在集合中"},{key:"学习",desc:"字母每次一个出现——每个1秒"},{key:"速度",desc:"尽快准确地回答"}]},
  WCST:{name:"卡片分类（WCST）",body:"基于威斯康星卡片分类测验。刺激卡片必须按照规则匹配目标卡片——颜色、形状或数量。规则从不告知，连续10次正确后默默改变。",rules:[{key:"点击",desc:"点击目标卡片将刺激卡片分类"},{key:"规则",desc:"三种可能规则：颜色 · 形状 · 符号数量"},{key:"转换",desc:"连续10次正确后默默改变规则"},{key:"持续错误",desc:"转换后仍按旧规则分类即为持续错误"}]},
  RECALL:{name:"词语再认",body:"通过再认测量情节记忆（比自由回忆更容易作答）。学习阶段逐一展示常用词语。经过分心任务后，逐一展示词语：有些在学习列表中（旧），有些是新的（新）。判断每个词是否在学习时见过。记录命中、虚报和 d′。",rules:[{key:"F = 旧",desc:"如果该词在学习列表中，按 F"},{key:"J = 新",desc:"如果该词不在列表中，按 J"},{key:"学习",desc:"仔细阅读每个词——每个2秒"},{key:"分心",desc:"进行心算任务30秒"}]},
  TMT:{name:"追踪制作测验",body:"按顺序连接编号和字母圆圈。A部分测量处理速度；B部分测量认知灵活性。",rules:[{key:"点击",desc:"尽快按正确顺序点击圆圈"},{key:"A部分",desc:"按升序连接数字 1→2→3…"},{key:"B部分",desc:"交替：1→A→2→B→3→C…"},{key:"错误",desc:"统计错误——点击正确目标继续"}]},
  DSC:{name:"数字符号编码",body:"一个密锐将1−9个数字分别对应一个独特符号。尽快填入对应符号。计时90秒——处理速度的经典指标（WAIS-IV）。",rules:[{key:"选择",desc:"点击图语符号第选择"},{key:"填入",desc:"点击空白格子填入符号"},{key:"1–9键",desc:"按数字键快速选择符号"},{key:"时间",desc:"90秒限时——从左到右尽快完成"}]},
  PNT:{name:"图片命名",body:"屏幕上出现一幅常见物品的插图。尽快大声准确地命名。语音识别评分并记录反应时间。",rules:[{key:"说话",desc:"尽快大声说出物品名称"},{key:"麦克风",desc:"点击麦克风按钮开始录音"},{key:"评分",desc:"回答与目标名称或近义词匹配则得分"}]},
  MRT:{name:"心理旋转",body:"两个3D方块结构并排出现。判断它们是同一形状的不同角度，还是镜像。反应时间随旋转角度增大。",rules:[{key:"F / 空格键",desc:"相同——同一形状，不同角度"},{key:"J",desc:"不同——镜像"},{key:"旋转",desc:"RT越慢 = 旋转角度越大"}]},
  FLANKER:{name:"徧世处岗侧制干扰范式",body:"箭头排成一行。对中间箭头的方向作出反应，忽略侧面箭头。不一致试次（相反侧杠）反应更慢。",rules:[{key:"F / 空格键",desc:"左——中间箭头指左"},{key:"J",desc:"右——中间箭头指右"},{key:"忽略",desc:"忽略侧面箭头"},{key:"不一致",desc:"相反侧杠——更慢，更多错误"}]},
  STOP:{name:"停止信号",body:"尽快对左/右箭头作出反应。约 25 %的试次会发出停止信号——抑制反应。SSRT测量抑制控制速度。",rules:[{key:"F / 空格键",desc:"对左箭头作出反应"},{key:"J",desc:"对右箭头作出反应"},{key:"停止",desc:"停止信号——立即抑制反应"},{key:"速度",desc:"尽快反应"}]},
  STROOP:{name:"色-词干扰范式",body:"测量选择性注意和认知控制。一个颜色词以一致、不一致或中性的颜色呈现。对墙底颜色作出反应——忽略文字。",rules:[{key:"F / G / H / J",desc:"墙底颜色：F=红 · G=绿 · H=蓝 · J=黄"},{key:"忽略文字",desc:"文字内容是干扰项"},{key:"一致",desc:"文字和颜色匹配——更快"},{key:"不一致",desc:"文字和颜色冲突——揭示Struoop干扰效应"}]},
  DST:{name:"数字幅度",body:"测量语言工作记忆容量。数字序列逐一呈现。正向：以相同顺序重复。逆向：以逆序重复。得分为最长正确序列。",rules:[{key:"观察",desc:"数字逐一出现"},{key:"正向",desc:"以相同顺序重复数字"},{key:"逆向",desc:"以逆序重复数字"},{key:"确认",desc:"序列完成后按✓或回车"}]},
  FTT:{name:"手指敲击测验",body:"测量运动速度和协调性。三个子测试：惯用手、非惯用手和交替（F然后J）。每个子测试三个10秒试次。基于Halstead-Reitan。",rules:[{key:"惯用手：空格/F",desc:"惯用手——尽快敲击"},{key:"非惯用：空格/J",desc:"非惯用手——同上，用另一手"},{key:"交替：F然后J",desc:"严格左右交替，F然后J"},{key:"10秒",desc:"每个试次持续10秒"}]},
  N400:{name:"N400语义启动",body:"句子逐词出现。最后一个词自然地属于语境（一致）或语义不符（不一致）。判断最后一词是否符合语境。",rules:[{key:"F / 空格键",desc:"符合——最后一词是连贯的"},{key:"J",desc:"不符合——最后一词语义不符"},{key:"阅读",desc:"仔细阅读每个词"},{key:"速度",desc:"尽快准确地作出反应"}]},
  MMN:{name:"失配负波",body:"被动听觉奇异范式——不需要反应。标准音调小流中夯杂着少数偏差音。MMN反映前注意听觉辨别。只需耶听即可。",rules:[{key:"被动",desc:"不需要反应——只需耶听"},{key:"标准",desc:"频繁音调——大多数音调"},{key:"偏差",desc:"不同频率的稀有音调——引发MMN"}]},
  P600:{name:"P600句法",body:"句子逐词出现。最后一词语法正确或包含句法违规。判断句子语法是否正确。",rules:[{key:"F / 空格键",desc:"正确——语法正确"},{key:"J",desc:"错误——包含句法违规"},{key:"速度",desc:"尽快准确地作出反应"}]},
  ERN:{name:"错误相关负波",body:"快速选择任务：在500 毫秒内对中间箭头作出反应。在此速度下错误不可避免。ERN反映前额叶错误监控。",rules:[{key:"F / 空格键",desc:"左——箭头指左"},{key:"J",desc:"右——箭头指右"},{key:"速度",desc:"在500 毫秒内反应——错误是范式的一部分"}]},
  CNV:{name:"事件相关负波",body:"警告音（S1）提示将在固定间隔后出现命令刺激（S2）。对S2按空格键反应。无S2的抓捕试次需抑制反应。",rules:[{key:"S1（音调）",desc:"警告信号——短暂音调"},{key:"S2（圆圈）",desc:"命令刺激——尽快按空格键"},{key:"抓捕试次",desc:"部分试次无S2——抑制反应"},{key:"空格键",desc:"唯一有效的反应键"}]}
};
const PARADIGMS_JA={
  PRL:{name:"確率的逆転学習",body:"80/20 報酬の下で2つの刺激から選ぶ；良い方は予告なく逆転する。報酬に基づく柔軟性とフィードバック監視（FRN/RewP）を測定。",rules:[{key:"F / J",desc:"左（F）または右（J）の刺激を選ぶ"},{key:"80 / 20",desc:"良い刺激は約80%、悪い刺激は約20%報酬"},{key:"逆転",desc:"良い／悪い刺激が予告なく入れ替わる"},{key:"勝てば継続",desc:"一度の失敗は誤選択を意味しない"},{key:"指標",desc:"正答率、逆転数、固執性誤り、勝継続/負転換"}]},
  DD:{name:"遅延割引",body:"小さく早い報酬と大きく遅い報酬（$1000）の反復選択；階段法で各遅延の無差別点を求め、双曲線 k と曲線下面積を算出。衝動性を測定。",rules:[{key:"F / J",desc:"左（F）または右（J）の選択肢を選ぶ"},{key:"今 vs 後で",desc:"今の少額か、遅延後の $1000 か"},{key:"正解なし",desc:"本当に好む方を選ぶ"},{key:"遅延",desc:"遅延は日から年へと増える"},{key:"指標",desc:"双曲線 k、ln(k)、曲線下面積、即時選択%"}]},
  SRTT:{name:"系列反応時間",body:"点灯したマスのキーを押す；位置は密かに繰り返し系列に従うため、潜在学習につれ反応が速くなる。ランダムブロックが学習を明らかにする。",rules:[{key:"D F J K",desc:"各マスにキーが対応——点灯した方を押す"},{key:"素早く",desc:"速く正確に反応する"},{key:"隠れ系列",desc:"位置は繰り返しパターンに従う"},{key:"ランダムブロック",desc:"あるブロックはランダム——学習済みなら RT 上昇"},{key:"指標",desc:"ブロック別 RT、系列学習効果、正確性"}]},
  BART:{name:"風船リスク課題（BART）",body:"風船を膨らませてお金を得る；各ポンプで報酬が増えるが破裂リスクも上がる。いつでも回収可；破裂するとその風船は失う。調整平均ポンプ数がリスク傾向を測る。",rules:[{key:"ポンプ（F）",desc:"風船を膨らます——各ポンプでお金と risk が増える"},{key:"回収（J）",desc:"現在の風船のお金を確保して次へ"},{key:"破裂",desc:"回収前に破裂するとそのお金は失われる"},{key:"トレードオフ",desc:"報酬を増やすには多くのポンプ＝高リスク"},{key:"指標",desc:"調整ポンプ数、総獲得額、破裂回数"}]},
  OSPAN:{name:"オペレーションスパン",body:"短い式の判断（真/偽）と文字の記憶を交互に行い、最後に文字を順番に再生する。複雑作動記憶容量の標準指標。",rules:[{key:"式",desc:"式は正しい？——真（T）/偽（F）"},{key:"文字",desc:"各式の後に表示される文字を覚える"},{key:"再生",desc:"最後に文字を元の順序でクリック"},{key:"テンポ維持",desc:"素早く回答——復唱で止まらない"},{key:"指標",desc:"部分得点・絶対得点、計算正確性"}]},
  TBIS:{name:"時間二分",body:"「短い」と「長い」の標準時間を学び、各フラッシュが短・長どちらに近いか判断する。二分点とウェーバー比を算出；CNV を関与させる。",rules:[{key:"学習",desc:"まず「短」「長」の標準を見る"},{key:"判断",desc:"フラッシュは短（F）か長（J）か？"},{key:"フィードバックなし",desc:"本試行は無フィードバック——知覚を信じる"},{key:"数えない",desc:"時間は短い——直感で判断"},{key:"指標",desc:"二分点、ウェーバー比、長判断率曲線"}]},

  GNG:{name:"GO/NO-GO",body:"GO/NO-GOタスクは反応抑制力を測定します。各試行で刺激が中央に表示されます。GO刺激（●）にはすばやく反応し、NO-GO刺激（○）には反応を抑制してください。",rules:[{key:"F / スペース",desc:"GO—ターゲットに反応する"},{key:"J",desc:"NO-GO—反応を抑制する"},{key:"●（実心）",desc:"GO—できるだけ早く反応する"},{key:"○（空心）",desc:"NO-GO—反応しない"},{key:"タイムアウト",desc:"1.5秒内に反応なしは抑制とみなされる"},{key:"比率",desc:"70 %ゴー試行 · 30 %ノーゴー試行"}]},
  NBACK:{name:"Nバック（1バック）",body:"Nバックタスクはワーキングメモリの更新を測定します。各試行で文字が表示されます。現在の文字が1試行前の文字と一致するか判断してください。",rules:[{key:"F / スペース",desc:"一致—N步前と一致する"},{key:"J",desc:"不一致—一致しない"},{key:"最初の試行",desc:"正解なし—文字を観察するだけ"},{key:"一致率",desc:"~35 %の試行が一致"}]},
  SPATIAL:{name:"空間注意",body:"視空間処理と選択的注意を測定します。各試行でグリッド3×3のセルがハイライトされます。できるだけ早く正確にクリックしてください。",rules:[{key:"クリック",desc:"ハイライトされたセルをできるだけ早くクリック"},{key:"正確さ",desc:"誤ったセルのクリックはエラー"},{key:"タイムアウト",desc:"1.5秒内に反応なしはミスと記録"}]},
  POSNER:{name:"ポズナーパラダイム",body:"陰性空間注意を測定します。キューがターゲットの場所へ注意を導きます。有効試行でのRTが短いことが注意の恒恒を示します。",rules:[{key:"スペース/F",desc:"ターゲットが表示されたら反応する"},{key:"内発性",desc:"中央矢印—自発的注意移動"},{key:"外発性",desc:"周辺の点滅—自動的捕捉"},{key:"受益",desc:"受益 = 無効RT - 有効RT"}]},
  VRT:{name:"視覚認識",body:"視覚エピソード記憶を測定します。学習フェーズで抽象幾何学的パターンを表示。保持期間後、学習済みと新規のパターンのペアが出現します。",rules:[{key:"学習",desc:"パターンの行列を見る—セットごとに4秒"},{key:"テスト",desc:"2つのパターンが出てくる—学習した方をクリック"},{key:"指標",desc:"正解率、虚報率、d’、RT"}]},
  CSR:{name:"コントラスト反転",body:"チェックボードパターンが一定の速度で極性を反転し続けます。ほとんどは標準反転ですが、一部がターゲット（45°回転）です。できるだけ早く反応してください。",rules:[{key:"スペース",desc:"ターゲット反転（45°回転）を検出したら押す"},{key:"観察",desc:"チェックボードは続けて反転—中央定位を保つ"},{key:"標準",desc:"ほとんどの反転は標準—反応しない"},{key:"ターゲット",desc:"時おり45°回転—すぐスペースを押す"}]},
  P300:{name:"聴覚的P300",body:"聴覚オッドボールパラダイムはP300脆波成分を導出します。頻繁な標準音の中にまれなオッドボール音が混在します。オッドボール音を検出してスペースを押してください。標準音:1000 Hz；オッドボール:2000 Hz、出現確率20 %。",rules:[{key:"スペース",desc:"まれな（高音）音が聞こえたら押す"},{key:"標準音",desc:"1000 Hz（頻繁）—反応しない"},{key:"オッドボール",desc:"2000 Hz（まれ、20 %）—スペースを押す"},{key:"ヘッドフォン",desc:"周波数判別のためヘッドフォンを使用"}]},
  STB:{name:"スターンバーグ記憶",body:"言語的ワーキングメモリの検索速度を測定します。文字セットが1度に1文字ずつ表示されます、1秒ごと。保持期間後、プローブ文字が出ます。セットにあればYESと答えてください。",rules:[{key:"F / スペース",desc:"YES—プローブ文字はセットにある"},{key:"J",desc:"NO—プローブ文字はセットにない"},{key:"学習",desc:"文字は1度に1つ—、1秒かけて"},{key:"速度",desc:"できるだけ早く正確に答える"}]},
  WCST:{name:"カード分類（WCST）",body:"ウィスコンシンカード分類テストに基づくタスクです。刺激カードをルール（色・形・数）に従ってターゲットカードに属すける。ルールは明示されず、正解、1×10回後に默默と変わります。",rules:[{key:"クリック",desc:"ターゲットカードをクリックして分類"},{key:"ルール",desc:"可能な30ルール：色 · 形 · 数"},{key:"シフト",desc:"連続10回正解後に默默とルール変更"},{key:"保持適応エラー",desc:"ルール変更後に古いルールを使い続けるのが保持適応エラー"}]},
  RECALL:{name:"単語再認",body:"再認によってエピソード記憶を測定します（自由再生より回答が容易）。学習段階で一般的な単語を一つずつ提示。分散課題の後、単語を一つずつ提示します。リストにあった単語（旧）と新しい単語（新）があります。各単語を学習中に見たかどうか判断してください。ヒット、フォールスアラーム、d′ を記録します。",rules:[{key:"F = 旧",desc:"単語がリストにあった場合は F"},{key:"J = 新",desc:"単語がリストになかった場合は J"},{key:"学習",desc:"各単語を注意深く読む—各2秒"},{key:"分散",desc:"演算問題を30秒間解く"}]},
  TMT:{name:"トレイルメイキングテスト",body:"番号と文字の円を順番に結びます。Part Aは処理速度、Part Bは認知的柔軟性を測定。",rules:[{key:"クリック",desc:"正しい順番で円をクリック"},{key:"Part A",desc:"数字1→2→3…を昇順に結ぶ"},{key:"Part B",desc:"交互に：1→A→2→B→3→C…"},{key:"エラー",desc:"エラー数を記録—正しいターゲットをクリックして続行"}]},
  DSC:{name:"数字記号置換",body:"キーが数字1～9をユニークな記号に対応させます。対応する記号をできるだけ早く入力してください。初時間90秒—処理速度の古典的指標（WAIS-IV）。",rules:[{key:"選択",desc:"パレットの記号をクリックして選択"},{key:"入力",desc:"空白のボックスをクリックして記号を入力"},{key:"1～9キー",desc:"数字キーを押して記号を素早く選択"},{key:"時間",desc:"90秒制限—左から右へできるだけ早く"}]},
  PNT:{name:"図独命名",body:"一般的な物体の詳細なイラストが表示されます。できるだけ早く正確に大声で命名してください。音声認識が応答を採点します。",rules:[{key:"話す",desc:"できるだけ早く大声で物体を命名"},{key:"マイク",desc:"マイクボタンをクリックして録音開始"},{key:"採点",desc:"応答が目標名または同義語と一致すると正解"}]},
  MRT:{name:"メンタルローテーション",body:"2つの3Dブロック構造が並んで表示されます。同じ形を別の角度で回転させたものか、鏡山像か判断してください。RTは回転角度と共に増加します。",rules:[{key:"F / スペース",desc:"同じ—同じ形、別の角度"},{key:"J",desc:"違う—鏡山像"},{key:"回転",desc:"RTが遅いと回転角度が大きい"}]},
  FLANKER:{name:"エリクセンフランカー",body:"矢印が一列に表示されます。フランカー矢印を無視して中央の矢印の向きに応答してください。不一致試行（反対向きのフランカー）はRTが遅いです。",rules:[{key:"F / スペース",desc:"左—中央矢印が左向き"},{key:"J",desc:"右—中央矢印が右向き"},{key:"無視",desc:"フランカー矢印を無視"},{key:"不一致",desc:"反対向きのフランカー—遅い、エラー多い"}]},
  STOP:{name:"ストップシグナル",body:"左/右の矢印にできるだけ早く応答してください。~25 %の試行でストップ信号が鳴ります—応答を抑制してください。SSRTは抑制制御の速度を示します。",rules:[{key:"F / スペース",desc:"左矢印に応答"},{key:"J",desc:"右矢印に応答"},{key:"ストップ",desc:"ストップ信号—応答をすぐに抑制"},{key:"速度",desc:"できるだけ早く応答"}]},
  STROOP:{name:"ストループ色-单語",body:"選択的注意と認知的制御を測定します。色彩单語が一致、不一致、または中立のインク色で表示されます。単語ではなくインクの色に応答してください。",rules:[{key:"F / G / H / J",desc:"インク色：F=赤 · G=緑 · H=青 · J=黄"},{key:"単語は無視",desc:"印刷された単語は妙害要因"},{key:"一致",desc:"単語と色が一致—暗い"},{key:"不一致",desc:"単語と色が矛盾—ストループ干渉効果"}]},
  DST:{name:"数字スパン",body:"言語的ワーキングメモリの容量を測定します。数字の列が1つずつ表示されます。順向き：同じ順序で繰り返す。逆向き：逆順で繰り返す。スコアは正解最長列。",rules:[{key:"観察",desc:"数字は1つずつ表示"},{key:"順向き",desc:"数字を同じ順序で繰り返す"},{key:"逆向き",desc:"数字を逆順で繰り返す"},{key:"確認",desc:"列が完成したら✓またはEnterを押す"}]},
  FTT:{name:"指たたき",body:"運動速度と協調性を測定します。サブテスト：利き手、非利き手、交互（F後J）。各サブテスト：10秒の試行。3回。Halstead-Reitanに基づく。",rules:[{key:"利き手：スペース/F",desc:"利き手—できるだけ早くたたく"},{key:"非利き：スペース/J",desc:"非利き手—同じ、別の手"},{key:"交互：F後J",desc:"厳密な左右交互、F後J"},{key:"10秒",desc:"各試行10秒間"}]},
  N400:{name:"N400意味プライミング",body:"文章が単語ごとに表示されます。最後の単語が文脈に自然に合っている（一致）か、意味的に不自然（不一致）か判断してください。",rules:[{key:"F / スペース",desc:"合う—最後の単語は一貫している"},{key:"J",desc:"合わない—最後の単語は意味的に不自然"},{key:"読む",desc:"各単語を注意深く読む"},{key:"速度",desc:"できるだけ早く正確に応答"}]},
  MMN:{name:"ミスマッチネガティビティ",body:"受動的聴覚オッドボール—応答不要。標準音の流れにまれな逸脱音が混在。MMNは前注意的な聴覚判別を反映します。ただ聞いているだけでよいです。",rules:[{key:"受動的",desc:"応答不要—いて聞くだけ"},{key:"標準",desc:"頻繁音—ほとんどの音"},{key:"逸脱",desc:"別の周波数のまれな音—MMNを導出"}]},
  P600:{name:"P600構文論的",body:"文章が単語ごとに表示されます。最後の単語が文法的に正しいか、小語山構造違反を含むか判断してください。",rules:[{key:"F / スペース",desc:"正しい—文法的に正しい"},{key:"J",desc:"間違い—小語山構造違反を含む"},{key:"速度",desc:"できるだけ早く正確に応答"}]},
  ERN:{name:"誤り関連負波",body:"素早い選択課題：500 ms以内に中央の矢印に応答。この速度ではエラーは避けられません。ERNは前部帯状回のエラー監視を反映します。",rules:[{key:"F / スペース",desc:"左—矢印が左向き"},{key:"J",desc:"右—矢印が右向き"},{key:"速度",desc:"500 ms以内に応答—エラーはパラダイムの一部"}]},
  CNV:{name:"共高性負変動",body:"警告音（S1）が一定間隔後に命令刺激（S2）が出ることを示します。S2に応答してスペースを押してください。キャッチ試行（S2なし）では応答を抑制してください。",rules:[{key:"S1（音）",desc:"警告信号—短い音"},{key:"S2（丸）",desc:"命令刺激—できるだけ早くスペースを押す"},{key:"キャッチ試行",desc:"S2のない試行—応答を抑制"},{key:"スペース",desc:"唯一の有効応答キー"}]}
};
const PARADIGMS_PT={
  PRL:{name:"APRENDIZAGEM DE REVERSÃO PROBABILÍSTICA",body:"Escolha entre dois estímulos com recompensa 80/20; o melhor inverte-se sem aviso. Mede a flexibilidade baseada em recompensa e a monitorização de feedback (FRN/RewP).",rules:[{key:"F / J",desc:"Escolha o estímulo da ESQUERDA (F) ou da DIREITA (J)"},{key:"80 / 20",desc:"O bom é recompensado ~80%, o mau ~20%"},{key:"REVERSÃO",desc:"Os estímulos bom e mau trocam sem aviso"},{key:"GANHA-FICA",desc:"Uma única perda não significa escolha errada"},{key:"MEDIDAS",desc:"Precisão, reversões, erros perseverativos, ganha-fica/perde-muda"}]},
  DD:{name:"DESCONTO POR ATRASO",body:"Escolhas repetidas entre uma recompensa menor-cedo e outra maior-tardia ($1000); uma escada acha o ponto de indiferença em cada atraso, dando o k hiperbólico e a área sob a curva. Mede a impulsividade.",rules:[{key:"F / J",desc:"Escolha a opção da ESQUERDA (F) ou da DIREITA (J)"},{key:"AGORA vs DEPOIS",desc:"Um valor menor agora ou $1000 após um atraso"},{key:"SEM RESPOSTA CERTA",desc:"Escolha a opção que realmente prefere"},{key:"ATRASOS",desc:"O atraso cresce de dias a anos"},{key:"MEDIDAS",desc:"k hiperbólico, ln(k), área sob a curva, % imediato"}]},
  SRTT:{name:"TEMPO DE REAÇÃO SERIAL",body:"Pressione a tecla da casa iluminada; as posições seguem em segredo uma sequência repetida, então as respostas aceleram à medida que é aprendida. Um bloco aleatório revela a aprendizagem.",rules:[{key:"D F J K",desc:"Cada casa tem uma tecla — pressione a que acender"},{key:"SEJA RÁPIDO",desc:"Responda com rapidez e precisão"},{key:"SEQUÊNCIA OCULTA",desc:"As posições seguem um padrão repetido"},{key:"BLOCO ALEATÓRIO",desc:"Um bloco é aleatório — o TR sobe se a aprendeu"},{key:"MEDIDAS",desc:"TR por bloco, efeito de aprendizagem, precisão"}]},
  BART:{name:"TAREFA DE RISCO DO BALÃO (BART)",body:"Encha um balão por dinheiro; cada bombada adiciona recompensa mas aumenta o risco de estourar. Guarde quando quiser; se estourar, perde esse balão. A média ajustada de bombadas mede a tomada de risco.",rules:[{key:"BOMBEAR (F)",desc:"Encha o balão — cada bombada adiciona dinheiro e risco"},{key:"GUARDAR (J)",desc:"Guarde o dinheiro do balão atual e siga"},{key:"ESTOURO",desc:"Se estourar antes de guardar, perde esse dinheiro"},{key:"TROCA",desc:"Mais recompensa exige mais bombadas, mais risco"},{key:"MEDIDAS",desc:"Bombadas ajustadas, total ganho, estouros"}]},
  OSPAN:{name:"AMPLITUDE OPERACIONAL",body:"Alterne julgar uma equação curta (verdadeiro/falso) com memorizar uma letra; depois recorde as letras em ordem. A medida padrão da capacidade de memória de trabalho complexa.",rules:[{key:"EQUAÇÃO",desc:"Decida se a conta está correta — VERDADEIRO (T) / FALSO (F)"},{key:"LETRA",desc:"Após cada equação, memorize a letra mostrada"},{key:"RECORDAÇÃO",desc:"No fim, clique nas letras na ordem original"},{key:"ACOMPANHE",desc:"Responda rápido — não pare para repassar"},{key:"MEDIDAS",desc:"Pontuação parcial e absoluta, precisão aritmética"}]},
  TBIS:{name:"BISSECÇÃO TEMPORAL",body:"Aprenda uma duração padrão CURTA e outra LONGA; depois julgue se cada flash está mais próximo do CURTO ou do LONGO. Dá o ponto de bissecção e a razão de Weber; envolve a CNV.",rules:[{key:"APRENDA",desc:"Observe primeiro os padrões CURTO e LONGO"},{key:"JULGUE",desc:"O flash foi mais CURTO (F) ou mais LONGO (J)?"},{key:"SEM FEEDBACK",desc:"Os ensaios não dão feedback — confie na sua percepção"},{key:"NÃO CONTE",desc:"As durações são breves — julgue pela intuição"},{key:"MEDIDAS",desc:"Ponto de bissecção, razão de Weber, curva proporção-longo"}]},

  GNG:{name:"VAI / NÃO VAI",body:"A tarefa Go/No-Go mede a inibição de resposta — sua capacidade de suprimir uma ação prepotente. Um estímulo aparece no centro a cada tentativa. Responda rapidamente aos estímulos Go (●) e retenha toda resposta aos estímulos No-Go (○).",rules:[{key:"F / ESPAÇO",desc:"VAI — responder ao estímulo alvo"},{key:"J",desc:"NÃO VAI — reter a resposta"},{key:"● (preenchido)",desc:"VAI — responder o mais rápido possível"},{key:"○ (vazio)",desc:"NÃO VAI — não responder"},{key:"TEMPO",desc:"Sem resposta em 1,5 s conta como retenção"},{key:"PROPORÇÃO",desc:"70 % tentativas Go · 30 % tentativas No-Go"}]},
  NBACK:{name:"N-DE-VOLTA (1-de-volta)",body:"A tarefa N-De-Volta mede a atualização da memória de trabalho. Uma letra aparece em cada tentativa. Decida se a letra atual corresponde à apresentada exatamente uma tentativa atrás.",rules:[{key:"F / ESPAÇO",desc:"CORRESPONDÊNCIA — a letra corresponde a N passos atrás"},{key:"J",desc:"SEM CORRESPONDÊNCIA — a letra não corresponde"},{key:"PRIMEIRA TENTATIVA",desc:"Não há resposta correta possível — apenas observe"},{key:"TAXA",desc:"~35 % das tentativas são correspondências"}]},
  SPATIAL:{name:"ATENÇÃO ESPACIAL",body:"Mede o processamento visuoespacial e a atenção seletiva. Em cada tentativa, uma célula de uma grade 3×3 é destacada. Clique na célula destacada o mais rápido e preciso possível.",rules:[{key:"CLIQUE",desc:"Clique na célula destacada o mais rápido possível"},{key:"PRECISÃO",desc:"Clicar na célula errada conta como erro"},{key:"TEMPO",desc:"Sem resposta em 1,5 s é registrado como omissão"}]},
  POSNER:{name:"PARADIGMA POSNER",body:"Mede a atenção espacial encoberta. Uma pista direciona a atenção para o local provável de um alvo. TRs mais rápidos em tentativas válidas revelam o benefício atencional da pista.",rules:[{key:"ESPAÇO / F",desc:"Responder quando o alvo aparecer"},{key:"ENDOGÉNONA",desc:"Seta central — deslocamento voluntário de atenção"},{key:"EXOGÉNONA",desc:"Flash periférico — captura automática e reflexiva"},{key:"BENEFÍCIO",desc:"Benefício = TR inválida − TR válida"}]},
  VRT:{name:"RECONHECIMENTO VISUAL",body:"Mede a memória episódica visual. Padrões geométricos abstratos são apresentados no estudo. Após um intervalo de retenção, pares aparecem — um estudado e um novo. Identifique qual viu.",rules:[{key:"ESTUDO",desc:"Observe a matriz de padrões — 4 segundos por conjunto"},{key:"TESTE",desc:"Dois padrões aparecem — clique no que estudou"},{key:"MÉTRICAS",desc:"Taxa de acertos, alarmes falsos, d’ e TR"}]},
  CSR:{name:"REVERSÃO DE CONTRASTE",body:"Um xadrez inverte sua polaridade em ritmo constante. A maioria das reversões é padrão. Uma pequena proporção são reversões ALVO — uma rotação de 45° por um ciclo. Responda o mais rápido possível.",rules:[{key:"ESPAÇO",desc:"Pressione ao detectar uma reversão ALVO (girada)"},{key:"OBSERVE",desc:"O xadrez reversa continuamente — mantenha a fixação"},{key:"PADRÃO",desc:"A maioria das reversões é padrão — NÃO responda"},{key:"ALVO",desc:"Rotação ocasional de 45° — pressione ESPAÇO imediatamente"}]},
  P300:{name:"P300 AUDITIVO",body:"O paradigma oddball auditivo elicita o componente P300. Um fluxo de tons padrão frequentes é apresentado com raros tons oddball intercalados. Detecte o tom oddball e pressione ESPAÇO. Padrão: 1000 Hz; Oddball: 2000 Hz, probabilidade 20 %.",rules:[{key:"ESPAÇO",desc:"Pressione ao ouvir o tom RARO (agudo)"},{key:"PADRÃO",desc:"1000 Hz (frequente) — NÃO responda"},{key:"ODDBALL",desc:"2000 Hz (raro, 20 %) — pressione ESPAÇO"},{key:"FONE",desc:"Use fone de ouvido para melhor discriminação de frequência"}]},
  STB:{name:"MEMÓRIA STERNBERG",body:"Mede a velocidade de busca na memória de trabalho verbal. Um conjunto de letras é apresentado UMA DE CADA VEZ — 1 segundo cada. Após um intervalo de retenção, uma letra sonda aparece. Responda SIM se estava no conjunto.",rules:[{key:"F / ESPAÇO",desc:"SIM — a letra sonda ESTAVA no conjunto"},{key:"J",desc:"NÃO — a letra sonda NÃO estava no conjunto"},{key:"ESTUDO",desc:"Letras aparecem UMA DE CADA VEZ — 1 s cada"},{key:"VELOCIDADE",desc:"Responda o mais rápido e preciso possível"}]},
  WCST:{name:"CLASSIFICAÇÃO DE CARTAS (WCST)",body:"Baseado no Teste de Classificação de Cartas de Wisconsin. Uma carta estímulo deve ser combinada com uma carta alvo segundo uma regra — cor, forma ou número. A regra nunca é informada e muda após 10 classificações corretas consecutivas.",rules:[{key:"CLIQUE",desc:"Clique em uma carta alvo para classificar a carta estímulo"},{key:"REGRAS",desc:"Três regras possíveis: cor · forma · número de símbolos"},{key:"MUDANÇA",desc:"A regra muda silenciosamente após 10 acertos consecutivos"},{key:"PERSEVER.",desc:"Erro perseverativo = usar a regra antiga após a mudança"}]},
  RECALL:{name:"RECONHECIMENTO DE PALAVRAS",body:"Mede a memória episódica por reconhecimento (mais fácil de responder que a evocação livre). Estuda-se uma lista de palavras comuns, uma a uma. Após breve tarefa distratora, palavras são mostradas uma a uma: algumas estavam na lista (ANTIGA) e outras são novas (NOVA). Decida se viu cada palavra durante o estudo. Acertos, alarmes falsos e d′ são registrados.",rules:[{key:"F = ANTIGA",desc:"Pressione F se a palavra ESTAVA na lista estudada"},{key:"J = NOVA",desc:"Pressione J se a palavra NÃO estava na lista"},{key:"ESTUDO",desc:"Leia cada palavra com atenção — 2 segundos cada"},{key:"DISTRATOR",desc:"Resolva problemas de aritmética por 30 s"}]},
  TMT:{name:"TESTE DE TRILHA",body:"Conecte círculos numerados e com letras em sequência. Parte A: velocidade de processamento. Parte B: flexibilidade cognitiva (alterna números e letras).",rules:[{key:"CLIQUE",desc:"Clique nos círculos na ordem correta o mais rápido possível"},{key:"PARTE A",desc:"Conecte os números 1 → 2 → 3… em ordem crescente"},{key:"PARTE B",desc:"Alterne: 1 → A → 2 → B → 3 → C…"},{key:"ERROS",desc:"Erros são contados — clique no alvo correto para continuar"}]},
  DSC:{name:"CODIFICAÇÃO DÍGITO-SÍMBOLO",body:"Uma chave associa cada dígito de 1 a 9 a um símbolo único. Preencha o símbolo correspondente o mais rápido possível. Tarefa cronometrada de 90 s — medida clássica de velocidade de processamento (WAIS-IV).",rules:[{key:"SELECIONAR",desc:"Clique em um símbolo na paleta para selecioná-lo"},{key:"PREENCHER",desc:"Clique em uma caixa vazia para inserir o símbolo"},{key:"TECLAS 1–9",desc:"Pressione uma tecla numérica para selecionar rapidamente"},{key:"TEMPO",desc:"Limite de 90 s — trabalhe da esquerda para a direita"}]},
  PNT:{name:"NOMEAÇÃO DE FIGURAS",body:"Uma ilustração detalhada de um objeto comum aparece. Nomeie-o em voz alta o mais rápido e preciso possível. O reconhecimento de voz pontua sua resposta.",rules:[{key:"FALE",desc:"Nomeie o objeto em voz alta o mais rápido possível"},{key:"MICROFONE",desc:"Clique no botão do microfone para começar a gravar"},{key:"PONTUAÇÃO",desc:"Correto se a resposta corresponder ao nome alvo ou sinônimo"}]},
  MRT:{name:"ROTAÇÃO MENTAL",body:"Duas estruturas de cubos 3D aparecem lado a lado. Decida se são a mesma forma em ângulo diferente, ou imagens espelhadas. O TR aumenta com o ângulo de rotação.",rules:[{key:"F / ESPAÇO",desc:"IGUAL — mesma forma, ângulo diferente"},{key:"J",desc:"DIFERENTE — imagem espelhada"},{key:"ROTAÇÃO",desc:"TR mais lento = maior ângulo de rotação"}]},
  FLANKER:{name:"FLANKER DE ERIKSEN",body:"Setas aparecem em fileira. Responda à direção da seta CENTRAL ignorando as setas flanqueadoras. Tentativas incongruentes (flanqueadoras opostas) são mais lentas.",rules:[{key:"F / ESPAÇO",desc:"ESQUERDA — a seta central aponta para a esquerda"},{key:"J",desc:"DIREITA — a seta central aponta para a direita"},{key:"IGNORE",desc:"Ignore as setas flanqueadoras"},{key:"INCONGRUENTE",desc:"Flanqueadoras opostas — mais lento, mais erros"}]},
  STOP:{name:"SINAL DE PARADA",body:"Responda a setas esquerda/direita o mais rápido possível. Em ~25 % das tentativas um sinal de parada (bipe) soa — retenha sua resposta. O SSRT mede a velocidade do controle inibitório.",rules:[{key:"F / ESPAÇO",desc:"Responder à seta ESQUERDA"},{key:"J",desc:"Responder à seta DIREITA"},{key:"PARAR",desc:"Sinal de parada — reter a resposta imediatamente"},{key:"VELOCIDADE",desc:"Vou o mais rápido possível"}]},
  STROOP:{name:"STROOP COR-PALAVRA",body:"Mede a atenção seletiva e o controle cognitivo. Uma palavra de cor aparece em tinta congruente, incongruente ou neutra. Responda à COR DA TINTA — ignore a palavra.",rules:[{key:"F / G / H / J",desc:"COR DA TINTA: F=Vermelho · G=Verde · H=Azul · J=Amarelo"},{key:"IGNORE A PALAVRA",desc:"A palavra impressa é um distrator"},{key:"CONGRUENTE",desc:"Palavra e cor iguais — mais rápido"},{key:"INCONGRUENTE",desc:"Conflito palavra/cor — revela interferência Stroop"}]},
  DST:{name:"AMPLITUDE DE DÍGITOS",body:"Mede a capacidade da memória de trabalho verbal. Sequências de dígitos são apresentadas um por um. Para frente: repetir na mesma ordem. Para trás: repetir na ordem inversa.",rules:[{key:"OBSERVE",desc:"Os dígitos aparecem um por um"},{key:"PARA FRENTE",desc:"Repetir os dígitos na MESMA ordem"},{key:"PARA TRÁS",desc:"Repetir os dígitos na ordem INVERSA"},{key:"CONFIRMAR",desc:"Pressione ✓ ou Enter quando a sequência estiver completa"}]},
  FTT:{name:"TAPPING DIGITAL",body:"Mede a velocidade e coordenação motoras. Três subtestes: mão dominante, não dominante e alternado (F depois J). Cada subteste: três ensaios de 10 segundos. Baseado no Halstead-Reitan.",rules:[{key:"DOMINANTE: ESPAÇO/F",desc:"Mão dominante — toque o mais rápido possível"},{key:"NÃO DOM.: ESPAÇO/J",desc:"Mão não dominante — igual, outra mão"},{key:"ALT.: F depois J",desc:"Alternado estrito esquerda-direita, F depois J"},{key:"10 SEGUNDOS",desc:"Cada ensaio dura 10 segundos"}]},
  N400:{name:"N400 PRIMING SEMÂNTICO",body:"Uma frase aparece palavra por palavra. A última palavra encaixa naturalmente (congruente) ou é semanticamente incongruente. Decida se a última palavra se encaixa no contexto.",rules:[{key:"F / ESPAÇO",desc:"ENCAIXA — a última palavra é coerente"},{key:"J",desc:"NÃO ENCAIXA — a última palavra é incongruente"},{key:"LEIA",desc:"Leia cada palavra com atenção"},{key:"VELOCIDADE",desc:"Responda o mais rápido e preciso possível"}]},
  MMN:{name:"NEGATIVIDADE DE INCOMPATIBILIDADE",body:"Paradigma oddball auditivo passivo — nenhuma resposta é necessária. Um fluxo de tons padrão é tocado com raros tons desviantes. A MMN reflete discriminação auditiva pré-atentiva. Apenas ouvi.",rules:[{key:"PASSIVO",desc:"Nenhuma resposta necessária — apenas ouvi"},{key:"PADRÃO",desc:"Tom frequente — a maioria dos tons"},{key:"DESVIANTE",desc:"Tom raro de frequência diferente — elicita a MMN"}]},
  P600:{name:"P600 SINTÁTICO",body:"Frases aparecem palavra por palavra. A última palavra completa a frase corretamente ou contém uma violação sintática. Decida se a frase é gramaticalmente correta.",rules:[{key:"F / ESPAÇO",desc:"CORRETO — gramaticalmente correto"},{key:"J",desc:"INCORRETO — contém violação sintática"},{key:"VELOCIDADE",desc:"Responda o mais rápido e preciso possível"}]},
  ERN:{name:"NEGATIVIDADE RELACIONADA AO ERRO",body:"Tarefa de escolha rápida: responda à seta central em 500 ms. Erros são inevitáveis nessa velocidade. A ERN reflete o monitoramento de erros do córtex cingulado anterior.",rules:[{key:"F / ESPAÇO",desc:"ESQUERDA — seta aponta para a esquerda"},{key:"J",desc:"DIREITA — seta aponta para a direita"},{key:"VELOCIDADE",desc:"Responda EM 500 ms — erros fazem parte do paradigma"}]},
  CNV:{name:"VARIAÇÃO NEGATIVA CONTINGENTE",body:"Um tom de alerta (S1) indica que um estímulo imperativo (S2) aparecerá após um intervalo fixo. Responda ao S2 pressionando ESPAÇO. Em tentativas sem S2, retenha a resposta.",rules:[{key:"S1 (tom)",desc:"Sinal de alerta — um breve som"},{key:"S2 (círculo)",desc:"Estímulo imperativo — pressione ESPAÇO o mais rápido possível"},{key:"TENTATIVA CATCH",desc:"Algumas tentativas sem S2 — retenha a resposta"},{key:"ESPAÇO",desc:"Unica tecla de resposta válida"}]},

  ABR:{name:"ABR — RESPOSTA AUDITIVA DE TRONCO ENCEFÁLICO",body:"Resposta Auditiva de Tronco Encefálico — potenciais de campo distante a um clique. As ondas I–V refletem núcleos auditivos sucessivos do tronco encefálico. A latência da onda V é o padrão clínico de referência para limiar auditivo e neuropatia auditiva.",rules:[{key:"CLIQUES",desc:"Cliques de alta frequência via fones de inserção"},{key:"PASSIVO",desc:"Frequentemente em sono ou sedação"},{key:"ONDAS I–V",desc:"5 picos nos primeiros 10 ms"},{key:"CLÍNICO",desc:"Latência V — limiar auditivo / neuropatia"}]},
  ASRS:{name:"ASRS — TDAH EM ADULTOS",body:"ASRS-v1.1 (Kessler et al., 2005) — triagem de TDAH em adultos. Contém 18 questões correspondentes aos critérios DSM-IV de TDAH, pontuadas 0–4 nos últimos 6 meses. A Parte A (questões 1–6) é uma triagem breve validada; ≥4 de 6 itens na faixa sombreada = triagem positiva (sensibilidade 68,7%, especificidade 99,5%). Domínio público.",rules:[{key:"6 MESES",desc:"Avalie os últimos 6 meses"},{key:"PARTE A",desc:"Questões 1–6 — triagem validada"},{key:"LIMIAR",desc:"≥4 de 6 na faixa sombreada = positivo"},{key:"AMBOS TIPOS",desc:"Desatenção e hiperatividade-impulsividade"},{key:"ADULTOS",desc:"Não para crianças — escalas pediátricas separadas"}]},
  ASSR:{name:"ASSR 40 Hz",body:"Resposta Auditiva de Estado Estável — tom modulado em amplitude a 40 Hz. O cérebro sincroniza em fase a 40 Hz na banda gama. Prejudicado na esquizofrenia; indexa a função GABAérgica cortical e a sincronia em banda gama.",rules:[{key:"OUÇA",desc:"Tom AM de 40 Hz via fones"},{key:"PASSIVO",desc:"Nenhuma tarefa ativa necessária"},{key:"RESPOSTA",desc:"Pico nítido a 40 Hz no espectro EEG"},{key:"CLÍNICO",desc:"Reduzido na esquizofrenia"}]},
  ATTBLINK:{name:"PISCAR ATENCIONAL",body:"Letras em RSVP; T2 não é detectado quando aparece 200–500 ms após T1; janela de desatenção temporal por esgotamento de recursos. Índice clássico dos limites temporais da atenção.",rules:[{key:"OBSERVE",desc:"Fluxo rápido de letras no centro"},{key:"T1",desc:"Primeiro alvo — letra branca"},{key:"T2",desc:"Segundo alvo — letra X"},{key:"PISCAR",desc:"T2 perdido com defasagem 200–500 ms"}]},
  AUDIOM:{name:"AUDIOMETRIA — TOM PURO",body:"Triagem de limiar auditivo. Tons apresentados em frequências variadas (250 Hz – 8 kHz) e intensidades; pressione ao detectar. O audiograma traça o limiar por frequência — indicador básico de saúde auditiva.",rules:[{key:"FONES",desc:"Fones calibrados são necessários"},{key:"SILÊNCIO",desc:"Minimize o ruído ambiente"},{key:"ESPAÇO",desc:"Pressione a cada tom detectado"},{key:"LIMIAR",desc:"Nível mais baixo detectado em cada frequência"}]},
  AUDIT:{name:"AUDIT — USO DE ÁLCOOL",body:"AUDIT (Saunders et al., 1993, OMS) — padrão-ouro de triagem para transtornos por uso de álcool. Dez itens: consumo (1–3), dependência (4–6), prejuízo (7–10). Escore 0–7 baixo risco; 8–15 uso de risco; 16–19 nocivo; 20+ provável dependência. Domínio público.",rules:[{key:"ANO",desc:"Avalie os últimos 12 meses"},{key:"DOSE",desc:"≈10 g de etanol (1 cerveja / 1 taça de vinho)"},{key:"LIMIAR",desc:"≥8 — uso de risco / nocivo"},{key:"ZONAS",desc:"I (baixo) / II (risco) / III (nocivo) / IV (dependência)"},{key:"OMS",desc:"Padrão global"}]},
  BNT:{name:"TESTE DE NOMEAÇÃO DE BOSTON",body:"Nomear desenhos de objetos; dificuldade crescente; sensível a dano em lobo temporal e doença de Alzheimer. Padrão-ouro de avaliação de nomeação por confronto.",rules:[{key:"MIC",desc:"Ative o microfone"},{key:"NOMEIE",desc:"Diga o nome do objeto em voz alta"},{key:"GRADUAL",desc:"Do fácil ao difícil"},{key:"PARAR",desc:"6 falhas consecutivas = parar"}]},
  C1:{name:"C1 — VISUAL MAIS PRECOCE",body:"ERP visual mais precoce, ~60–100 ms. Gerado em V1 (córtex visual primário). A polaridade depende do campo visual: positivo para campo inferior, negativo para campo superior. Marcador de processamento retinotópico.",rules:[{key:"FIXE",desc:"Fixe o centro"},{key:"CAMPO",desc:"Estímulos no campo visual superior ou inferior"},{key:"C1",desc:"Pico occipital ~60–100 ms"},{key:"FONTE",desc:"V1 — córtex visual primário"}]},
  CDA:{name:"CDA — ATIVIDADE CONTRALATERAL TARDIA",body:"Atividade Contralateral Tardia — negatividade contralateral sustentada sobre o córtex posterior durante a manutenção da memória de trabalho visual. A amplitude estabiliza na capacidade da MT (~3–4 itens). Usada para indexar a carga da MT visual.",rules:[{key:"FIXE",desc:"Fixe o centro"},{key:"ESTUDO",desc:"Memorize quadrados coloridos em um lado"},{key:"RETENÇÃO",desc:"Atraso de 1 s"},{key:"CDA",desc:"Negatividade posterior contralateral durante a retenção"},{key:"CAPACIDADE",desc:"Platô em ~3–4 itens = capacidade da MT"}]},
  CDT:{name:"TESTE DO DESENHO DO RELÓGIO",body:"Desenhe um relógio mostrando 11:10; triagem clássica para demência, disfunção executiva, negligência hemispatial, apraxia construtiva. Usado no MoCA, MMSE-2, Mini-Cog. A versão em navegador captura dados completos de traço + tempo de conclusão para pontuação manual (escala Shulman 6 pontos ou Sunderland 10 pontos).",rules:[{key:"DESENHE",desc:"Mostrador do relógio com todos os números"},{key:"HORA",desc:"Coloque os ponteiros em 11:10"},{key:"PONTUAÇÃO",desc:"Shulman 6 pontos ou Sunderland 10 pontos"},{key:"TRAÇOS",desc:"Dados completos de traços salvos"}]},
  CNVW:{name:"CNV — SINAL DE ALERTA",body:"S1 (alerta) → S2 (imperativo) com intervalo de 1000 ms. A negatividade lenta CNV cresce entre eles sobre o córtex frontal; a amplitude reflete preparação motora e expectativa temporal. Distinta do potencial de prontidão.",rules:[{key:"S1",desc:"Tom de alerta"},{key:"S2",desc:"Estímulo imperativo após 1000 ms"},{key:"ESPAÇO",desc:"Responda ao S2 o mais rápido possível"},{key:"CNV",desc:"Negatividade lenta entre S1 e S2 sobre o córtex frontal"}]},
  CPS:{name:"CPS — DESLOCAMENTO POSITIVO DE FECHAMENTO",body:"Closure Positive Shift — positividade bilateral em limites de frases prosódicas em sentenças faladas ~200–500 ms. Reflete a análise sintática de frases entonacionais; distinta do processamento sintático e semântico.",rules:[{key:"OUÇA",desc:"Sentenças faladas com limites prosódicos"},{key:"LIMITE",desc:"Pausa ou alongamento entonacional"},{key:"CPS",desc:"Positividade bilateral ~200–500 ms"},{key:"PASSIVO",desc:"Nenhuma tarefa ativa necessária"}]},
  CVLT:{name:"CVLT — APRENDIZAGEM VERBAL CALIFÓRNIA",body:"California Verbal Learning Test — \"lista de compras\" de 16 palavras de 4 categorias semânticas; 5 ensaios de aprendizagem; evocação livre e com pistas após atraso curto e longo; reconhecimento; mede curva de aprendizagem, agrupamento semântico, posição serial e retenção.",rules:[{key:"5 ENSAIOS",desc:"Mesma lista 5 vezes"},{key:"CATEGORIAS",desc:"4 categorias semânticas, encobertas"},{key:"AGRUPAR",desc:"Agrupamento semântico espontâneo"},{key:"PISTAS",desc:"Evocação com pista por categoria"}]},
  DIGCAN:{name:"CANCELAMENTO DE DÍGITOS",body:"Esquadrinhe uma grade de dígitos aleatórios e marque cada alvo (ex.: 3 e 7); total correto, omissões, falsos alarmes e tempo — indicadores de atenção sustentada e velocidade de processamento.",rules:[{key:"CLIQUE",desc:"Clique nos alvos (3 e 7)"},{key:"IGNORE",desc:"Todos os outros dígitos"},{key:"TEMPO",desc:"Trabalhe o mais rápido possível"},{key:"MÉTRICAS",desc:"Precisão, omissões, falsos alarmes, tempo"}]},
  DUALTASK:{name:"TAREFA DUPLA",body:"Monitoramento de letras + rastreamento espacial simultâneos; o custo de tarefa dupla indexa atenção dividida e o gargalo central. Indicador de capacidade atencional.",rules:[{key:"TAREFA 1",desc:"Identifique letras-alvo"},{key:"TAREFA 2",desc:"Rastreie um ponto em movimento"},{key:"CUSTO",desc:"Desempenho duplo vs simples"},{key:"GARGALO",desc:"Reflete o limite de processamento central"}]},
  ELAN:{name:"ELAN — NEGATIVIDADE ANTERIOR ESQUERDA PRECOCE",body:"Negatividade Anterior Esquerda Precoce — resposta ultrarrápida (100–200 ms) a uma violação sintática, precedendo o P600. Localização anterior-esquerda no escalpo. Indexa a detecção automática de violações de estrutura de frase.",rules:[{key:"F / ESPAÇO",desc:"GRAMATICAL"},{key:"J",desc:"VIOLAÇÃO — estrutura de frase quebrada"},{key:"ELAN",desc:"Negatividade anterior esquerda 100–200 ms"},{key:"P600",desc:"Frequentemente acompanhada de positividade tardia 500–800 ms"}]},
  EMOTSTROOP:{name:"STROOP EMOCIONAL",body:"Nomeie a cor da tinta de palavras emocionais vs neutras; a interferência afetiva torna o TR mais lento para palavras emocionais; mede o viés atencional para conteúdo de ameaça ou relacionado a trauma.",rules:[{key:"COR",desc:"Responda à COR DA TINTA"},{key:"IGNORE",desc:"Significado da palavra"},{key:"EMOÇÃO",desc:"Palavras ameaçadoras/negativas tornam o TR mais lento"},{key:"VIÉS",desc:"Marcador de ansiedade, TEPT, fobias"}]},
  ERAN:{name:"ERAN — NEGATIVIDADE ANTERIOR DIREITA PRECOCE",body:"Negatividade Anterior Direita Precoce — violação musico-sintática ~150–200 ms; lateralizada à direita; detecção de irregularidade de acorde; análogo musical do ELAN para sintaxe linguística; sensível ao treinamento musical.",rules:[{key:"OUÇA",desc:"Sequências de acordes via fones"},{key:"ESPERADO",desc:"Tônica ou subdominante"},{key:"VIOLAÇÃO",desc:"Acorde napolitano / acorde fora de tonalidade"},{key:"ERAN",desc:"Negatividade anterior-direita ~150–200 ms"}]},
  FER:{name:"RECONHECIMENTO DE EMOÇÃO FACIAL",body:"Identifique seis emoções básicas; processamento afetivo dependente da amígdala; prejudicado em lesões de amígdala e depressão. Paradigma de emoções básicas de Ekman.",rules:[{key:"VEJA",desc:"O rosto mostra uma de 6 emoções"},{key:"6 EMOÇÕES",desc:"Alegria, tristeza, raiva, medo, nojo, surpresa"},{key:"AMÍGDALA",desc:"Especialmente medo e raiva"},{key:"DEPRESSÃO",desc:"Viés para emoções negativas"}]},
  FRN:{name:"FRN — NEGATIVIDADE RELACIONADA AO FEEDBACK",body:"Negatividade Relacionada ao Feedback — negatividade fronto-central ~200–300 ms após resultados negativos; sinal de erro de predição de recompensa; distinta da ERN (erros próprios); sensível à depressão e uso de substâncias.",rules:[{key:"ESCOLHA",desc:"Adivinhe qual porta vai ganhar"},{key:"FEEDBACK",desc:"Ganho ou perda após 600 ms"},{key:"FRN",desc:"Negatividade fronto-central ~200–300 ms à perda"},{key:"SINAL",desc:"Erro de predição de recompensa"}]},
  GABOR:{name:"GABOR — SENSIBILIDADE AO CONTRASTE",body:"Patches Gabor (grades senoidais em envelope gaussiano) com contraste variável. O método de escada encontra o limiar de detecção. Ferramenta clássica para medir a função de sensibilidade ao contraste.",rules:[{key:"FIXE",desc:"Fixe a cruz central"},{key:"F / J",desc:"Grade à esquerda ou direita"},{key:"ESCADA",desc:"O contraste se adapta ao desempenho"},{key:"LIMIAR",desc:"~75% correto"}]},
  GAD7:{name:"GAD-7 — ANSIEDADE",body:"GAD-7 (Spitzer et al., 2006) — triagem para transtorno de ansiedade generalizada e gravidade dos sintomas ansiosos. Sete itens 0–3 nas últimas duas semanas. Escore ≥10 tem sensibilidade 89% e especificidade 82% para TAG; também triagem eficaz para pânico, ansiedade social e TEPT. Domínio público.",rules:[{key:"2 SEMANAS",desc:"Avalie as últimas 2 semanas"},{key:"0–3",desc:"0=nenhum / 1=vários dias / 2=mais da metade / 3=quase todos os dias"},{key:"LIMIAR",desc:"≥10 = triagem positiva"},{key:"AMPLO",desc:"TAG, pânico, ansiedade social, TEPT"},{key:"MONITORA",desc:"Acompanha resposta ao tratamento"}]},
  HACHINSKI:{name:"ESCALA ISQUÊMICA DE HACHINSKI",body:"Escore Isquêmico de Hachinski (Hachinski, Iliff, Zilhka et al., 1975, Arch Neurol 32:632–637) — lista de verificação de 13 itens avaliada pelo clínico para diferenciar demência multi-infarto (vascular) da demência tipo Alzheimer. Cada item é pontuado presente (1 ou 2 pontos) ou ausente (0). Total 0–18. ≤4 → degenerativa primária; 5–6 → mista; ≥7 → multi-infarto.",rules:[{key:"CLÍNICO",desc:"Preenchido a partir da história do paciente e informante"},{key:"13 ITENS",desc:"Presente = 1 ou 2 pontos; ausente = 0"},{key:"PESOS",desc:"2 pontos: início abrupto, flutuação, AVCs, sintomas/sinais focais"},{key:"LIMIARES",desc:"≤4 = tipo DA; 5–6 = mista; ≥7 = multi-infarto"},{key:"COMPLEMENTAR",desc:"Use com neuroimagem"}]},
  ISHIHARA:{name:"PLACAS DE ISHIHARA",body:"Triagem de visão de cores para anomalia vermelho-verde. Números escondidos em padrões de pontos; visíveis a tricromatas normais mas não àqueles com protanopia ou deuteranopia. Ferramenta clássica de triagem.",rules:[{key:"VEJA",desc:"Identifique o número em cada placa"},{key:"TEMPO",desc:"~3 s por placa"},{key:"DEFICIT V/V",desc:"Protan / deutan — formas mais comuns"},{key:"TRIAGEM",desc:"Não substitui exame completo de cores"}]},
  KATZ:{name:"ÍNDICE DE KATZ — AVD BÁSICAS",body:"Índice de Katz (Katz et al., 1963, JAMA 185:914–919) — a medida mais usada de atividades básicas da vida diária. Seis itens — banhar-se, vestir-se, usar o banheiro, transferir-se, continência e alimentar-se — cada um pontuado 1 (independente) ou 0 (dependente). Total 0–6. A escala Katz captura habilidades fundamentais de autocuidado que declinam tardiamente na demência e na progressão da incapacidade.",rules:[{key:"CLÍNICO",desc:"Pontuado pelo clínico ou informante"},{key:"6 ITENS",desc:"Banho · Vestir · Banheiro · Transferir · Continência · Alimentar"},{key:"BINÁRIO",desc:"1 (independente) ou 0 (dependente / precisa de ajuda)"},{key:"ESCALA",desc:"6 = função plena · 4 = moderada · ≤2 = comprometimento grave"},{key:"PAREADO",desc:"Frequentemente combinado com Lawton AIVD"}]},
  LAN:{name:"LAN — NEGATIVIDADE ANTERIOR ESQUERDA",body:"Negatividade Anterior Esquerda — resposta morfossintática ~300–500 ms a violações de concordância (número, gênero, caso). Lateralizada à esquerda; dissocia processamento sintático do semântico. Distinta do N400; específica para gramática.",rules:[{key:"F / ESPAÇO",desc:"GRAMATICAL"},{key:"J",desc:"ERRO DE CONCORDÂNCIA"},{key:"LAN",desc:"Negatividade anterior-esquerda ~300–500 ms"},{key:"ESPECÍFICO",desc:"Gramática, não semântica"}]},
  LAWTON:{name:"ESCALA DE AIVD DE LAWTON",body:"Escala AIVD de Lawton (Lawton & Brody, 1969, Gerontologist 9:179–186) — mede atividades instrumentais de ordem superior necessárias para vida independente na comunidade. Oito itens — telefone, compras, preparação de refeições, tarefas domésticas, lavanderia, transporte, medicação e finanças — cada um 0 ou 1. Pontuação unissex moderna 0–8 (mais baixo = mais comprometido). O declínio nas AIVD tipicamente precede o declínio nas AVD básicas na demência em anos.",rules:[{key:"CLÍNICO",desc:"Pontuado por observação ou relato do informante"},{key:"8 ITENS",desc:"Fone · Compras · Cozinhar · Casa · Roupa · Transporte · Remédios · Finanças"},{key:"0–8",desc:"Cada item 0 (dependente) ou 1 (independente)"},{key:"MARCADOR PRECOCE",desc:"Declínio em AIVD precede declínio em AVD básicas"},{key:"PAREADO",desc:"Frequentemente combinado com Katz AVD"}]},
  LDAEP:{name:"LDAEP — DEPENDÊNCIA DA INTENSIDADE",body:"Dependência da Intensidade dos Potenciais Evocados Auditivos — inclinação da amplitude N1/P2 vs intensidade do tom. Uma inclinação acentuada correlaciona-se com baixa atividade serotonérgica; usado em pesquisa de depressão.",rules:[{key:"OUÇA",desc:"Tons em 5 níveis de intensidade"},{key:"PASSIVO",desc:"Nenhuma tarefa ativa necessária"},{key:"INCLINAÇÃO",desc:"Amplitude N1/P2 vs intensidade"},{key:"SEROTONINA",desc:"Inclinação acentuada → baixa 5-HT"}]},
  LPC:{name:"LPC — COMPONENTE POSITIVO TARDIO",body:"Componente Positivo Tardio — positividade parietal 500–800 ms durante reconhecimento episódico. Reflete recoleção; dissociável da familiaridade (FN400); grande para itens lembrados com confiança.",rules:[{key:"VELHO",desc:"Item previamente estudado"},{key:"NOVO",desc:"Item não estudado"},{key:"LPC",desc:"Positividade parietal 500–800 ms"},{key:"RECOLEÇÃO",desc:"Maior para respostas \"lembrar\" com confiança"}]},
  LRP:{name:"LRP — POTENCIAL DE PRONTIDÃO LATERALIZADO",body:"Potencial de Prontidão Lateralizado — tarefa \"seta esquerda/direita\". Negatividade motora contralateral ~300–500 ms indexa preparação de movimento específica da mão.",rules:[{key:"F",desc:"Seta esquerda → mão esquerda"},{key:"J",desc:"Seta direita → mão direita"},{key:"LRP",desc:"Negatividade cortico-motora contralateral 300–500 ms"},{key:"MARCADOR",desc:"Preparação de resposta manual"}]},
  MATRIX:{name:"RACIOCÍNIO MATRICIAL",body:"Complete o padrão; inteligência fluida não verbal; culturalmente neutra; sensível ao declínio cognitivo global. Análogo às matrizes de Raven.",rules:[{key:"VEJA",desc:"Matriz 3×3 com uma célula faltando"},{key:"ESCOLHA",desc:"Selecione o item que completa o padrão"},{key:"REGRAS",desc:"Linhas/colunas seguem transformações lógicas"},{key:"Gf",desc:"Marcador de inteligência fluida"}]},
  META:{name:"METACOGNIÇÃO",body:"Estimativas de confiança sobre decisões de memória; d-primo tipo 2; eficiência metacognitiva; prejudicada na esquizofrenia e anosognosia. Mede a relação entre precisão e confiança.",rules:[{key:"ESTUDO",desc:"Memorize palavras"},{key:"TESTE",desc:"VELHO ou NOVO?"},{key:"CONFIANÇA",desc:"Avalie a confiança 1–6"},{key:"d′2",desc:"Diferença de TR entre acertos confiantes e erros"}]},
  MFN:{name:"MFN — NEGATIVIDADE FRONTAL MEDIAL",body:"Negatividade Frontal Medial — negatividade fronto-central ~200–350 ms a conflito de resposta e incompatibilidade de predição em contextos não motores. Relacionada à família N2; sensível à incongruência e violação de expectativa.",rules:[{key:"EXPECTATIVA",desc:"Estímulo preditor"},{key:"INCOMPATIB.",desc:"Final viola a predição"},{key:"MFN",desc:"Negatividade fronto-central ~200–350 ms"},{key:"FAMÍLIA N2",desc:"Relacionada à ERN, N200"}]},
  MMNSP:{name:"MMN — FALA",body:"Contraste fonêmico passivo: padrão /ba/ vs desviante /pa/. MMN de fala usada em pesquisa de dislexia e desenvolvimento da linguagem; indexa a automaticidade da discriminação de fonemas, distinta da MMN baseada em tom.",rules:[{key:"OUÇA",desc:"Passivamente via fones"},{key:"PADRÃO",desc:"/ba/ (85%)"},{key:"DESVIANTE",desc:"/pa/ (15%) — difere em ponto de articulação"},{key:"MMN",desc:"Negatividade fronto-central ~150–250 ms"}]},
  N100:{name:"N100 / P200",body:"N100 auditivo — negatividade no vértice ~100 ms a tons; P200 — positividade ~200 ms. A amplitude reflete intensidade e habituação. Complexo auditivo cortical básico.",rules:[{key:"OUÇA",desc:"Série de tons via fones"},{key:"N100",desc:"Negatividade no vértice ~100 ms"},{key:"P200",desc:"Positividade no vértice ~200 ms"},{key:"HABITUAÇÃO",desc:"A amplitude diminui com a repetição"}]},
  N170:{name:"N170 — ROSTO / OBJETO",body:"N170 — negatividade occipito-temporal ~170 ms, seletivamente maior para rostos. Rostos esquemáticos gerados proceduralmente e objetos geométricos apresentados; responda rosto ou objeto. O efeito de inversão de rostos (N170 maior/mais tardio para rostos invertidos) é um marcador robusto do processamento facial configural.",rules:[{key:"F",desc:"ROSTO — o estímulo é um rosto"},{key:"J",desc:"OBJETO — o estímulo é uma figura geométrica"},{key:"N170",desc:"Negatividade occipito-temporal ~170 ms, maior para rostos"},{key:"INVERSÃO",desc:"Rostos invertidos produzem N170 maior e mais tardio"}]},
  N1P2:{name:"N1-P2 — RESPOSTA AUDITIVA",body:"N1-P2 — negatividade no vértice ~100 ms e positividade ~200 ms ao início do tom. Amplitude modulada por atenção, habituação e excitação. Resposta auditiva cortical básica.",rules:[{key:"OUÇA",desc:"Série de tons via fones"},{key:"N1",desc:"Negatividade no vértice ~100 ms"},{key:"P2",desc:"Positividade no vértice ~200 ms"},{key:"MODULAÇÃO",desc:"Realçada pela atenção"}]},
  N200:{name:"N200 / N2 No-Go",body:"Tarefa Go/No-Go de duas alternativas; pico negativo fronto-central ~200 ms, seletivamente maior em tentativas No-Go — reflete a supressão ativa da resposta prepotente.",rules:[{key:"F / ESPAÇO",desc:"GO — responda ao círculo DOURADO"},{key:"PARE",desc:"NO-GO — não pressione ao círculo AZUL"},{key:"N200",desc:"Pico negativo fronto-central ~200 ms, maior em No-Go"},{key:"PROPORÇÃO",desc:"75% Go · 25% No-Go"}]},
  N2B:{name:"N2b — N2 DE ALVO",body:"N2b — negatividade fronto-central ~200–300 ms a alvos; atenção e categorização de estímulo. Dissociável do N2pc (espacial) e N200 (inibitório). Reflete incompatibilidade entre estímulo e gabarito de alvo.",rules:[{key:"F",desc:"ALVO — o estímulo corresponde à categoria"},{key:"J",desc:"NÃO ALVO"},{key:"N2b",desc:"Negatividade fronto-central ~200–300 ms"},{key:"DISTINTO",desc:"Não espacial (N2pc), não inibitório (No-Go N2)"}]},
  N2PC:{name:"N2pc — CAPTURA ATENCIONAL",body:"Busca visual com matriz bilateral. Negatividade posterior contralateral ~220–300 ms (PO7/PO8) marca a captura atencional encoberta pelo alvo. Índice canônico da seleção de alvo na busca espacial.",rules:[{key:"FIXE",desc:"Fixe o centro — não mova os olhos"},{key:"BUSCA",desc:"Alvo à esquerda ou direita entre distratores"},{key:"RESPONDA",desc:"Propriedade do alvo (cor/orientação)"},{key:"N2pc",desc:"Negatividade posterior contralateral ~220–300 ms"}]},
  N300:{name:"N300 — PRIMING DE OBJETO",body:"Emoji prime → alvo. Negatividade centro-occipital ~300 ms menor para pares categoricamente congruentes. Reflete processamento categórico precoce, precedendo o N400 semântico.",rules:[{key:"PRIME",desc:"Emoji 500 ms"},{key:"ALVO",desc:"Emoji — mesma categoria ou diferente"},{key:"F",desc:"CORRESPONDE à categoria"},{key:"J",desc:"NÃO CORRESPONDE"},{key:"N300",desc:"Negatividade centro-occipital ~300 ms"}]},
  P100:{name:"VEP DE FLASH P100",body:"Flashes breves de luminância em campo total (~80 ms de duração, branco sobre fundo preto) em ISI de 1–2 s eliciam o P100 — um pico positivo occipital ~80–130 ms gerado no córtex visual primário (V1). Distinto do PVEP de início de padrão: estímulos de flash ativam regiões retinianas mais amplas e produzem resposta mais robusta porém menos especificamente espacial. Usado em neurociência visual básica para integridade retiniana/nervo óptico e adaptado clinicamente quando a reversão de padrão é impraticável (ex.: fixação ruim, baixa acuidade). Inclui tentativas-pega ocasionais com flash fraco para manter o engajamento atencional.",rules:[{key:"FIXE",desc:"Fixe a cruz central — não desvie o olhar"},{key:"PASSIVO",desc:"A maioria das tentativas não exige resposta — apenas observe"},{key:"PEGA",desc:"ESPAÇO: pressione apenas ao ver um flash FRACO (10% das tentativas)"},{key:"P100",desc:"Pico positivo occipital ~80–130 ms em O1/Oz/O2"},{key:"V1",desc:"Gerado no córtex visual primário; reflete integridade retina+vias"}]},
  P3A:{name:"P3a — ODDBALL DE NOVIDADE",body:"Oddball de três estímulos — separa P3a (novidade frontal) de P3b (detecção de alvo parietal). Sons novos/imprevisíveis raros eliciam P3a; alvos eliciam P3b. Indexa orientação atencional involuntária.",rules:[{key:"PADRÃO",desc:"1000 Hz (80%)"},{key:"ALVO",desc:"2000 Hz (10%) — pressione ESPAÇO"},{key:"NOVO",desc:"Sons novos aleatórios (10%) — ignore"},{key:"P3a",desc:"Positividade frontal à novidade ~250–350 ms"},{key:"P3b",desc:"Positividade parietal a alvos ~300–500 ms"}]},
  P50:{name:"P50 — FILTRAGEM SENSORIAL",body:"Paradigma de duplo clique: dois cliques auditivos em intervalo de 500 ms. P50 ao S2 é normalmente suprimido (~50% do S1). A razão S2/S1 indexa filtragem sensorial; prejudicada na esquizofrenia e reflete função colinérgica e GABAérgica.",rules:[{key:"CLIQUES",desc:"Pares de cliques em intervalo de 500 ms via fones"},{key:"PASSIVO",desc:"Nenhuma tarefa ativa necessária"},{key:"P50",desc:"Pico positivo ~50 ms a cada clique"},{key:"FILTRO",desc:"S2/S1 normalmente <0,5"}]},
  PAL:{name:"APRENDIZAGEM DE PARES ASSOCIADOS",body:"Estude pares palavra-palavra; evocação com pista; mede a ligação associativa hipocampal; sensível à doença de Alzheimer precoce.",rules:[{key:"ESTUDO",desc:"Pares de palavras apresentados juntos"},{key:"TESTE",desc:"Primeira palavra → digite a segunda"},{key:"HIPOCAMPO",desc:"A ligação depende do LTM"},{key:"MARC. DA",desc:"Declínio precoce na doença de Alzheimer"}]},
  PASAT:{name:"PASAT",body:"Paced Auditory Serial Addition Test — dígitos isolados em ritmo fixo; some cada novo dígito ao anterior; mede atenção dividida, atualização da MT e velocidade de processamento; padrão na avaliação de EM e TCE.",rules:[{key:"OUÇA",desc:"Dígitos isolados via fones"},{key:"SOME",desc:"Some o dígito atual ao ANTERIOR (não soma corrente)"},{key:"RITMO",desc:"Um dígito a cada 3 s (ou 2 s)"},{key:"PADRÃO",desc:"Usado na bateria MSFC para EM"}]},
  PCL5:{name:"PCL-5 — TEPT",body:"PCL-5 (Weathers et al., 2013) — gravidade dos sintomas de TEPT segundo DSM-5. Vinte itens cobrem intrusão (5), evitação (2), cognição/humor negativos (7) e ativação/reatividade (6). Cada um avaliado 0–4 no último mês. Limiar ≥33 é tipicamente usado para triagem positiva. Domínio público.",rules:[{key:"MÊS",desc:"Avalie o último mês"},{key:"0–4",desc:"0=nada / ... / 4=extremamente"},{key:"LIMIAR",desc:"Total ≥33 = TEPT provável"},{key:"GRUPOS",desc:"Intrusão / evitação / cognição-humor / ativação"},{key:"DSM-5",desc:"Pontuação por grupo dá diagnóstico provisório"}]},
  PD:{name:"Pd — POSITIVIDADE DE DISTRATOR",body:"Pd — positividade contralateral ~200–300 ms a distratores ativamente suprimidos. Imagem espelhada do N2pc; reflete supressão top-down da captura atencional.",rules:[{key:"FIXE",desc:"Fixe o centro"},{key:"DISTRATOR",desc:"Distrator saliente requer supressão"},{key:"RESPONDA",desc:"Ao alvo central ou no outro lado"},{key:"Pd",desc:"Positividade contralateral ao distrator ~200–300 ms"}]},
  PE:{name:"Pe — POSITIVIDADE DE ERRO",body:"Positividade de Erro — positividade centro-parietal ~200–400 ms após a ERN. Reflete consciência consciente do erro; dissociável da ERN na anosognosia; mediada pelo cingulado anterior e ínsula.",rules:[{key:"F / J",desc:"Escolha forçada rápida"},{key:"ERRO",desc:"Após uma resposta errada"},{key:"ERN",desc:"Negatividade frontal 0–100 ms"},{key:"Pe",desc:"Positividade centro-parietal 200–400 ms — consciência do erro"}]},
  PHONFLUE:{name:"FLUÊNCIA FONÊMICA (FAS)",body:"Diga o maior número possível de palavras começando com F, depois A, depois S, 60 s cada; a fluência fonêmica indexa a integridade do lobo frontal e a velocidade de acesso lexical; distinta da fluência semântica.",rules:[{key:"60 SEGUNDOS",desc:"Por letra"},{key:"LETRAS",desc:"F, depois A, depois S"},{key:"EXCLUSÕES",desc:"Sem nomes próprios ou palavras de mesma raiz"},{key:"FRONTAL",desc:"Sensível à disfunção frontal"}]},
  PHQ9:{name:"PHQ-9 — DEPRESSÃO",body:"PHQ-9 (Kroenke et al., 2001) — a triagem breve mais validada para depressão. Nove itens correspondem aos critérios DSM-5 para episódio depressivo maior; avaliação 0–3 nas últimas duas semanas. Escore ≥10 tem sensibilidade 88% e especificidade 88% para depressão maior. Domínio público.",rules:[{key:"2 SEMANAS",desc:"Avalie com que frequência o problema o incomodou em 2 semanas"},{key:"0–3",desc:"0=nenhum / 1=vários dias / 2=mais da metade / 3=quase todos os dias"},{key:"LIMIAR",desc:"Total ≥10 = triagem positiva"},{key:"ITEM 9",desc:"Ideação suicida — acompanhamento clínico"},{key:"MONITORA",desc:"Mudança de 5 pontos é clinicamente significativa"}]},
  PMN:{name:"PMN — NEGATIVIDADE DE INCOMPATIBILIDADE FONOLÓGICA",body:"Negatividade de Incompatibilidade Fonológica — negatividade anterior-esquerda precoce ~270 ms a uma violação fonológica em palavra falada. Distinta do N400 semântico; reflete acesso lexical no nível do fonema.",rules:[{key:"OUÇA",desc:"Palavras via fones"},{key:"ESPERADO",desc:"Fonema final consistente com o prime"},{key:"VIOLAÇÃO",desc:"Final fonologicamente incompatível"},{key:"PMN",desc:"Negatividade anterior-esquerda ~270 ms"}]},
  PROSMEM:{name:"MEMÓRIA PROSPECTIVA",body:"Lembrar de pressionar uma tecla quando um alvo aparecer durante uma tarefa em andamento; frequentemente prejudicada em TCE e envelhecimento. \"Memória de intenções\"; função pré-frontal.",rules:[{key:"EM ANDAM.",desc:"Realize decisão lexical"},{key:"INTENÇÃO",desc:"Quando \"BARCO\" aparecer — pressione Q"},{key:"RARO",desc:"O alvo é raro (~5%)"},{key:"MEM. PLANO",desc:"Função pré-frontal"}]},
  REWP:{name:"RewP / FRN",body:"Positividade de Recompensa — ERP relacionado ao feedback ~250 ms; ganho produz positividade, perda negatividade; fonte orbitofrontal. Usado em pesquisa de depressão, dependência e tomada de decisão.",rules:[{key:"ESCOLHA",desc:"Escolha uma de duas portas"},{key:"FEEDBACK",desc:"Ganho ou perda após 600 ms"},{key:"RewP",desc:"Positividade fronto-central ~250 ms a ganho"},{key:"FRN",desc:"Mesma janela temporal — negatividade a perda"}]},
  RON:{name:"RON — NEGATIVIDADE DE REORIENTAÇÃO",body:"Negatividade de Reorientação — negatividade fronto-central ~400–600 ms após um desviante inesperado capturar a atenção. Reflete a reorientação da atenção de volta ao canal principal após distração por som novo.",rules:[{key:"OUÇA",desc:"Tarefa ativa com desviantes auditivos"},{key:"CAPTURA",desc:"Um som novo captura a atenção"},{key:"REORIENT.",desc:"A atenção retorna à tarefa"},{key:"RON",desc:"Negatividade fronto-central ~400–600 ms"}]},
  SART:{name:"SART — ATENÇÃO SUSTENTADA",body:"Sustained Attention to Response Task — responda a cada dígito exceto 3. A taxa de comissão indexa divagação mental; sensível a TCE e TDAH. Paradigma de \"retenção de resposta\".",rules:[{key:"ESPAÇO",desc:"Pressione a cada dígito"},{key:"PARE",desc:"NÃO pressione no 3"},{key:"COMISSÕES",desc:"Erros no 3 = divagação mental"},{key:"DURAÇÃO",desc:"~5 min — declínio de vigilância"}]},
  SCP:{name:"SCP — POTENCIAIS CORTICAIS LENTOS",body:"Potenciais Corticais Lentos — deslocamentos DC sustentados durante carga cognitiva. Usados em neurofeedback e ICC. A regulação voluntária do SCP é a base das ICCs clássicas de Birbaumer.",rules:[{key:"CARGA",desc:"Sustente esforço mental durante o bloco"},{key:"REPOUSO",desc:"Relaxe entre blocos"},{key:"SCP",desc:"Deslocamento DC lento — segundos"},{key:"ICC",desc:"Regulação voluntária possível com treinamento"}]},
  SEASHORE:{name:"SEASHORE — RITMO",body:"Teste de ritmo de Seashore. Ouça pares de sequências rítmicas; decida se são iguais ou diferentes. Mede discriminação auditiva, especialmente processamento rítmico. Usado em avaliação de habilidade musical e amusia.",rules:[{key:"OUÇA",desc:"Par de ritmos via fones"},{key:"F",desc:"IGUAL"},{key:"J",desc:"DIFERENTE"},{key:"AMUSIA",desc:"Reduzido na amusia congênita"}]},
  SEMFLUENCY:{name:"FLUÊNCIA SEMÂNTICA",body:"Diga o maior número possível de animais/comidas/ferramentas em 60 s; índices de total e agrupamento indexam a integridade do lobo frontal/temporal. Medida neuropsicológica padrão.",rules:[{key:"60 SEGUNDOS",desc:"Diga o maior número possível"},{key:"CATEGORIA",desc:"Ex.: animais"},{key:"AGRUPAR",desc:"Grupos semanticamente relacionados"},{key:"TROCA",desc:"Transições entre subcategorias"}]},
  SRCMEM:{name:"MEMÓRIA DE FONTE",body:"Lembrar não apenas o quê mas onde você aprendeu; função do lobo frontal; dissocia recoleção de familiaridade. Avalia não o item em si mas o seu contexto.",rules:[{key:"ESTUDO",desc:"Palavras em duas fontes/cores diferentes"},{key:"VELHO?",desc:"Primeiro: você viu a palavra?"},{key:"FONTE?",desc:"Depois: qual fonte/cor?"},{key:"FRONTAL",desc:"Lesões frontais reduzem a memória de fonte"}]},
  SSVEP:{name:"SSVEP",body:"Potencial Evocado Visual de Estado Estável — patches piscantes a 10 Hz (esquerda) e 15 Hz (direita) produzem picos espectrais nítidos no EEG occipital exatamente nessas frequências. Usado em ICC e pesquisa de atenção.",rules:[{key:"FIXE",desc:"Olhe para a cruz central"},{key:"ATENÇÃO",desc:"Concentre-se em um lado que pisca"},{key:"ESPECTRO",desc:"Pico em 10 Hz / 15 Hz no EEG occipital"},{key:"ICC",desc:"Atenção seletiva modula a amplitude"}]},
  STAR:{name:"CANCELAMENTO DE ESTRELAS",body:"Encontre e clique em cada pequena estrela-alvo entre distratores (estrelas grandes, letras, palavras curtas); 52 alvos no total. Triagem clássica do Behavioural Inattention Test (BIT) para negligência hemispatial esquerda (pós-AVC, lesões). Pontuação: alvos encontrados, assimetria (E vs D), tempo.",rules:[{key:"CLIQUE",desc:"Clique apenas em pequenas estrelas"},{key:"IGNORE",desc:"Estrelas grandes, letras, palavras"},{key:"ASSIMETRIA",desc:"Diferença E/D em alvos encontrados"},{key:"NEGLIGÊNCIA",desc:"Alvos de um lado consistentemente perdidos"}]},
  SUBITIZE:{name:"SUBITIZAÇÃO",body:"Enumere rapidamente 1–8 pontos; inclinação plana do TR 1–4 (subitização) vs íngreme 4+ (contagem); velocidade de processamento de magnitudes numéricas. Distingue pensamento pré-numérico e numérico.",rules:[{key:"VEJA",desc:"Pontos aparecem brevemente"},{key:"RESPONDA",desc:"Digite a contagem"},{key:"SUBITIZE",desc:"1–4: rápido, TR plano"},{key:"CONTE",desc:"5+: TR aumenta linearmente"}]},
  TASKSWITCH:{name:"TROCA DE TAREFA",body:"Alternar duas regras de classificação com uma pista; o custo de troca = lentidão do TR em tentativas de troca; mede flexibilidade cognitiva e reconfiguração de tarefa.",rules:[{key:"PISTA",desc:"A cor da moldura indica a regra atual"},{key:"REGRA 1",desc:"Classificar por paridade"},{key:"REGRA 2",desc:"Classificar por magnitude"},{key:"CUSTO",desc:"TR troca − TR repetição"}]},
  THALPHA:{name:"THETA / ALFA",body:"Ritmos EEG espontâneos em repouso. Theta frontal (4–8 Hz) aumenta com carga cognitiva; alfa occipital (8–13 Hz) domina com olhos fechados. Indicador básico do estado cortical.",rules:[{key:"OLHOS",desc:"Alterne \"abertos\" e \"fechados\""},{key:"ALFA",desc:"Pico occipital 8–13 Hz com olhos fechados"},{key:"THETA",desc:"Frontal 4–8 Hz sob carga"},{key:"ESTADO",desc:"Alfa bloqueado na abertura ocular"}]},
  TOJ:{name:"JULGAMENTO DE ORDEM TEMPORAL",body:"Qual estímulo apareceu primeiro? Estimação por escada do JND; sensível à disfunção temporal em gânglios da base e cerebelo. Marcador de cronestesia.",rules:[{key:"DOIS ESTÍM.",desc:"Esquerda e direita com pequeno SOA"},{key:"F",desc:"ESQUERDA PRIMEIRO"},{key:"J",desc:"DIREITA PRIMEIRO"},{key:"ESCADA",desc:"SOA converge para 75% de precisão"}]},
  UFOV:{name:"UFOV — CAMPO VISUAL ÚTIL",body:"Useful Field of View — discriminação central + detecção periférica; atenção dividida; preditor de segurança na direção; sensível ao envelhecimento e TCE.",rules:[{key:"CENTRO",desc:"Identifique o estímulo central"},{key:"PERIFERIA",desc:"Localize o estímulo periférico"},{key:"TEMPO",desc:"Apresentações breves (~100 ms)"},{key:"DIREÇÃO",desc:"UFOV reduzido → maior risco de acidente"}]},
  SPR:{name:"RECONHECIMENTO DE SONDA SERIAL",body:"Reconhecimento de sonda serial visual — paradigma de Sands & Wright (1980, Science 209:938; JEP:ABP 6:386). Uma lista de N itens distintos é apresentada um por vez, seguida de uma sonda única. O sujeito julga se a sonda estava na lista. Com estímulos únicos por ensaio, a função de posição serial mostra primazia + recência clássicas, refletindo a comparação clássica macaco/humano. Estímulos de formas procedurais por padrão; carregue seu próprio conjunto de imagens via o botão ⚛ IMAGENS PERSONALIZADAS na barra lateral.",rules:[{key:'ESTUDO',desc:'Observe N itens mostrados um por vez (padrão: 10 depois 20)'},{key:'SONDA',desc:'Um item aparece após o intervalo de retenção'},{key:'F / ←CLIQUE',desc:'SIM — a sonda estava na lista'},{key:'J / →CLIQUE',desc:'NÃO — a sonda não estava na lista'},{key:'POSIÇÃO',desc:'As sondas amostram todas as posições igualmente'},{key:'SAÍDA',desc:'Função de posição serial · d-prime · TR'}]},
  'SPR-A':{name:"RECONHECIMENTO DE SONDA SERIAL (AUDITIVO)",body:"Análogo auditivo do paradigma de sonda serial de Sands & Wright. Uma lista de N estímulos sonoros distintos é apresentada sequencialmente, em seguida uma sonda única é tocada. O sujeito julga se a sonda estava na lista. Requer arquivos de som carregados pelo usuário: abra ♬ ÁUDIO PERSONALIZADO da barra lateral e adicione pelo menos 8 arquivos ao pool SPR-A.",rules:[{key:'CARREGAR',desc:'Carregue ≥8 sons via ♬ ÁUDIO PERSONALIZADO → POOL SPR-A'},{key:'OUVIR',desc:'Ouça N sons um por vez'},{key:'SONDA',desc:'Um som é retocado após o intervalo de retenção'},{key:'F / ←CLIQUE',desc:'SIM — a sonda estava na lista'},{key:'J / →CLIQUE',desc:'NÃO — a sonda não estava na lista'},{key:'SAÍDA',desc:'Função de posição serial · d-prime · TR'}]},
  VPP:{name:"VPP — POTENCIAL POSITIVO DO VÉRTICE",body:"Potencial Positivo do Vértice — contraparte positiva do N170 no vértice mediano (Cz); pico ~170 ms a rostos; específico para rostos. Reflete a mesma fonte fusiforme do N170, mas com polaridade oposta em Cz.",rules:[{key:"F",desc:"ROSTO"},{key:"J",desc:"OBJETO"},{key:"VPP",desc:"Pico positivo em Cz ~170 ms"},{key:"FONTE",desc:"Giro fusiforme — mesmo dipolo do N170"}]},
  MTS:{name:"EMPARELHAMENTO COM A AMOSTRA",body:"Emparelhamento com a amostra — paradigma de discriminação de Wright, Santiago, Sands et al. Um estímulo amostra é apresentado, depois aparece um conjunto de 2–4 estímulos de comparação; o sujeito escolhe a comparação que corresponde à amostra. No MTS simultâneo a amostra permanece visível durante a escolha; no MTS atrasado (DMTS) a amostra é removida e um intervalo de retenção intervém antes das comparações, sondando a memória de curto prazo. Usa as mesmas formas procedurais ou o pool ⚛ IMAGENS PERSONALIZADAS que SPR.",rules:[{key:'AMOSTRA',desc:'Aparece um único estímulo amostra'},{key:'COMPARAÇÕES',desc:'2–4 opções aparecem (uma corresponde)'},{key:'ESCOLHER',desc:'Clique na correspondência, ou 1 / 2 / 3 / 4'},{key:'SIMULTÂNEO',desc:'A amostra permanece visível durante a escolha'},{key:'ATRASADO (DMTS)',desc:'Amostra oculta + intervalo de retenção'},{key:'SAÍDA',desc:'Precisão · TR · transferência de conceito'}]}
};
const TILE_LABELS_ES={PRL:"REV. PROBAB.",DD:"DESC. DEMORA",SRTT:"TR EN SERIE",BART:"RIESGO GLOBO",OSPAN:"AMPL. OPER.",TBIS:"BISECC. TEMP.",GNG:'IR / NO IR',NBACK:'N-ATRÁS',SPATIAL:'ESPACIAL',POSNER:'POSNER',RECALL:'RECUERDO LIBRE',WCST:'CLASIFICACIÓN',VRT:'RECONO. VISUAL',STB:'STERNBERG',TMT:'RASTREO',DSC:'DÍG.-SÍMBOLO',PNT:'DENOMINACIÓN',MRT:'ROT. MENTAL',FLANKER:'FLANKER',STOP:'SEÑAL STOP',STROOP:'STROOP',DST:'AMPLITUD DÍG.',FTT:'GOLPETEO',P300:'P300 AUDITIVO',CSR:'REV. CONTRASTE',N400:'N400',MMN:'MMN',P600:'P600',ERN:'ERN',CNV:'CNV',N200:'N200/NO-IR',N170:'N170 CARAS',N2PC:'N2pc',N300:'N300',ELAN:'ELAN',BP:'BEREITSCHAFT',MMNSP:'MMN HABLA',SSVEP:'SSVEP',P50:'P50 GATING',N100:'N100/P200',P100:'P100 DESTELLO',SCP:'SCP',P3A:'P3a NOVEDAD',ASSR:'ASSR 40Hz',CPT:'CPT',EMOTSTROOP:'STROOP EMOC.',TASKSWITCH:'CAMBIO TAREA',DUALTASK:'DOBLE TAREA',ATTBLINK:'PARPADEO ATEN.',SUBITIZE:'SUBITIZACIÓN',LEXDEC:'DEC. LÉXICA',SEMFLUENCY:'FLUENCIA SEM.',PROSMEM:'MEM. PROSP.',SPATWM:'MT ESPACIAL',MOCA:'MoCA',REWP:'RewP/FRN',DIGCAN:'CANCELACIÓN',ABR:'ABR',SYMSEARCH:'BÚSQ. SÍMBOLOS',PHONFLUE:'FLUENCIA FAS',JLO:'ORIENT. LÍNEAS',PASAT:'PASAT',RAVLT:'RAVLT',CVLT:'CVLT',IGT:'IOWA GAMBLING',TOL:'TORRE DE LONDRES',RMET:'MENTE EN OJOS',P1N1:'P1/N1 ESPACIAL',CNVW:'CNV AVISO',THALPHA:'THETA/ALFA',LRP:'LRP',SART:'SART',UFOV:'UFOV',PAL:'APREND. PAR',SRCMEM:'MEM. FUENTE',BNT:'BOSTON NAMING',FER:'EMOCION FACIAL',TOJ:'ORDEN TEMPORAL',MATRIX:'RAZON. MATRIZ',META:'METACOGNICION',PHQ9:'PHQ-9',GAD7:'GAD-7',PCL5:'PCL-5',AUDIT:'AUDIT',ASRS:'ASRS-TDAH',N1P2:'N1-P2',RON:'RON',LAN:'LAN',CPS:'CPS',N2B:'N2b',PD:'Pd',ERAN:'ERAN',LPC:'LPC',FRN:'FRN',CDA:'CDA',LDAEP:'LDAEP',C1:'C1',PMN:'PMN',VPP:'VPP',PE:'Pe',ORN:'ORN',MFN:'MFN',CDT:'RELOJ',STAR:'TACHAR ESTRELLAS'};
const TILE_LABELS_FR={PRL:"INVERSION PROB.",DD:"DÉVAL. TEMP.",SRTT:"TR SÉRIEL",BART:"BALLON BART",OSPAN:"EMPAN OPÉR.",TBIS:"BISSEC. TEMP.",GNG:"VA / N'Y VA PAS",NBACK:'N-EN-ARRIÈRE',SPATIAL:'ATTENTION SPATIALE',POSNER:'PARADIGME POSNER',RECALL:'RAPPEL LIBRE',WCST:'TRI DE CARTES',VRT:'RECONN. VISUELLE',STB:'MÉMOIRE STERNBERG',TMT:'TEST DE TRACÉ',DSC:'COD. CHIFFRE-SYMB.',PNT:"DÉNOMINATION D'IMAGES",MRT:'ROTATION MENTALE',FLANKER:'FLANKER ERIKSEN',STOP:'SIGNAL STOP',STROOP:'STROOP',DST:'EMPAN DE CHIFFRES',FTT:'TAPPING DIGITAL',P300:'P300 AUDITIF',CSR:'INVERSION CONTRASTE',N400:'N400',MMN:'MMN',P600:'P600',ERN:'ERN',CNV:'CNV',N200:'N200/NO-GO',N170:'N170 VISAGE',N2PC:'N2pc',N300:'N300',ELAN:'ELAN',BP:'POTENTIEL PRÉPAR.',MMNSP:'MMN PAROLE',SSVEP:'SSVEP',P50:'P50 GATING',N100:'N100/P200',P100:'P100 FLASH',SCP:'SCP',P3A:'P3a NOUVEAUTÉ',ASSR:'ASSR 40Hz',CPT:'CPT',EMOTSTROOP:'STROOP ÉMOT.',TASKSWITCH:'CHANGEM. TÂCHE',DUALTASK:'DOUBLE TÂCHE',ATTBLINK:'CLIGN. ATTEN.',SUBITIZE:'SUBITISATION',LEXDEC:'DÉC. LEXICALE',SEMFLUENCY:'FLUENCE SÉM.',PROSMEM:'MÉM. PROSPECT.',SPATWM:'MT SPATIALE',MOCA:'MoCA',REWP:'RewP/FRN',DIGCAN:'BARRAGE CHIFFRES',ABR:'ABR',SYMSEARCH:'RECHERCHE SYMB.',PHONFLUE:'FLUENCE FAS',JLO:'ORIENT. LIGNES',PASAT:'PASAT',RAVLT:'RAVLT',CVLT:'CVLT',IGT:'IOWA GAMBLING',TOL:'TOUR DE LONDRES',RMET:'ESPRIT DANS LES YEUX',P1N1:'P1/N1 SPATIAL',CNVW:'CNV AVERTISS.',THALPHA:'THETA/ALPHA',LRP:'LRP',SART:'SART',UFOV:'UFOV',PAL:'APP. PAIRES',SRCMEM:'MEM. SOURCE',BNT:'BOSTON NAMING',FER:'EMOTION FACIALE',TOJ:'ORDRE TEMPOREL',MATRIX:'RAISONNEMENT MAT.',META:'METACOGNITION',PHQ9:'PHQ-9',GAD7:'GAD-7',PCL5:'PCL-5',AUDIT:'AUDIT',ASRS:'ASRS-TDAH',N1P2:'N1-P2',RON:'RON',LAN:'LAN',CPS:'CPS',N2B:'N2b',PD:'Pd',ERAN:'ERAN',LPC:'LPC',FRN:'FRN',CDA:'CDA',LDAEP:'LDAEP',C1:'C1',PMN:'PMN',VPP:'VPP',PE:'Pe',ORN:'ORN',MFN:'MFN',CDT:'HORLOGE',STAR:'BARRAGE ÉTOILES'};
const TILE_LABELS_DE={PRL:"UMKEHRLERNEN",DD:"VERZÖG.-DISKONT",SRTT:"SERIELLE RZ",BART:"BALLON-RISIKO",OSPAN:"OPERAT.-SPANNE",TBIS:"ZEIT-BISEKTION",GNG:'GO / NICHT-GO',NBACK:'N-ZURÜCK',SPATIAL:'RÄUMLICHE AUFM.',POSNER:'POSNER-PARADIGMA',RECALL:'FREIER ABRUF',WCST:'KARTENSORTIERUNG',VRT:'VISUELLE ERKENNUNG',STB:'STERNBERG-GEDÄCHT.',TMT:'TRAIL-MAKING-TEST',DSC:'ZIFFERN-SYMBOL-KOD.',PNT:'BILDBENENNUNG',MRT:'MENTALE ROTATION',FLANKER:'ERIKSEN-FLANKER',STOP:'STOPPSIGNAL',STROOP:'STROOP',DST:'ZAHLENSPEICHE',FTT:'FINGER-TAPPING',P300:'AUDIT. P300',CSR:'KONTRASTUMKEHR',N400:'N400',MMN:'MMN',P600:'P600',ERN:'ERN',CNV:'KNV',N200:'N200/KEIN-GO',N170:'N170 GESICHT',N2PC:'N2pc',N300:'N300',ELAN:'ELAN',BP:'BEREITSCHAFTSPOT.',MMNSP:'MMN SPRACHE',SSVEP:'SSVEP',P50:'P50 GATING',N100:'N100/P200',P100:'P100 BLITZ',SCP:'SCP',P3A:'P3a NEUHEIT',ASSR:'ASSR 40Hz',CPT:'CPT',EMOTSTROOP:'EMOT. STROOP',TASKSWITCH:'AUFGABENWECHSEL',DUALTASK:'DOPPELAUFGABE',ATTBLINK:'AUFM.-BLINZELN',SUBITIZE:'SUBITISIERUNG',LEXDEC:'LEXIK. ENTSCH.',SEMFLUENCY:'SEM. FLÜSSIGK.',PROSMEM:'PROSP. GEDÄCHT.',SPATWM:'RÄUML. AG',MOCA:'MoCA',REWP:'RewP/FRN',DIGCAN:'ZIFFERNSTREICHEN',ABR:'ABR',SYMSEARCH:'SYMBOLSUCHE',PHONFLUE:'WORTFLÜSSIGK.',JLO:'LINIENORIENT.',PASAT:'PASAT',RAVLT:'RAVLT',CVLT:'CVLT',IGT:'IOWA GAMBLING',TOL:'TURM VON LONDON',RMET:'MIND IN EYES',P1N1:'P1/N1 RÄUMLICH',CNVW:'CNV WARNSIGNAL',THALPHA:'THETA/ALPHA',LRP:'LRP',SART:'SART',UFOV:'UFOV',PAL:'PAARLERNEN',SRCMEM:'QUELLENGED.',BNT:'BOSTON BENENNEN',FER:'GESICHTSEMOTION',TOJ:'ZEITL. REIHENFOLGE',MATRIX:'MATRIZENDENKEN',META:'METAKOGNITION',PHQ9:'PHQ-9',GAD7:'GAD-7',PCL5:'PCL-5',AUDIT:'AUDIT',ASRS:'ASRS-ADHS',N1P2:'N1-P2',RON:'RON',LAN:'LAN',CPS:'CPS',N2B:'N2b',PD:'Pd',ERAN:'ERAN',LPC:'LPC',FRN:'FRN',CDA:'CDA',LDAEP:'LDAEP',C1:'C1',PMN:'PMN',VPP:'VPP',PE:'Pe',ORN:'ORN',MFN:'MFN',CDT:'UHRENTEST',STAR:'STERNSUCHE'};
const TILE_LABELS_ZH={PRL:"概率反转",DD:"延迟折扣",SRTT:"序列反应时",BART:"气球风险",OSPAN:"运算广度",TBIS:"时距二分",GNG:'执行/抑制',NBACK:'N-Back',SPATIAL:'空间注意',POSNER:'波斯纳范式',RECALL:'自由回忆',WCST:'卡片分类',VRT:'视觉再认',STB:'斯腾伯格记忆',TMT:'连线测验',DSC:'数字符号编码',PNT:'图片命名',MRT:'心理旋转',FLANKER:'弗兰克任务',STOP:'停止信号',STROOP:'斯特鲁普',DST:'数字广度',FTT:'手指敲击',P300:'听觉P300',CSR:'对比反转',N400:'N400',MMN:'MMN',P600:'P600',ERN:'ERN',CNV:'CNV',N200:'N200/不执行',N170:'N170面孔',N2PC:'N2pc',N300:'N300',ELAN:'ELAN',BP:'准备电位',MMNSP:'MMN语音',SSVEP:'SSVEP',P50:'P50门控',N100:'N100/P200',P100:'P100 闪光',SCP:'慢皮层电位',P3A:'P3a新异',ASSR:'ASSR 40Hz',CPT:'持续注意测试',EMOTSTROOP:'情绪斯特鲁普',TASKSWITCH:'任务切换',DUALTASK:'双任务',ATTBLINK:'注意瞬脱',SUBITIZE:'感知计数',LEXDEC:'词汇判断',SEMFLUENCY:'语义流利性',PROSMEM:'前瞻记忆',SPATWM:'空间工作记忆',MOCA:'MoCA认知筛查',REWP:'奖赏阳性波',DIGCAN:'数字删除',ABR:'听觉脑干反应',SYMSEARCH:'符号搜索',PHONFLUE:'字母流利性',JLO:'线段定向判断',PASAT:'PASAT',RAVLT:'RAVLT词语学习',CVLT:'加州词语学习',IGT:'爱荷华赌博任务',TOL:'伦敦塔',RMET:'读心眼测试',P1N1:'P1/N1空间注意',CNVW:'CNV警告信号',THALPHA:'θ/α振荡',LRP:'LRP',SART:'SART',UFOV:'视野范围',PAL:'配对联想',SRCMEM:'来源记忆',BNT:'波士顿命名',FER:'面部情绪识别',TOJ:'时间顺序判断',MATRIX:'矩阵推理',META:'元认知',PHQ9:'PHQ-9抑郁',GAD7:'GAD-7焦虑',PCL5:'PCL-5创伤',AUDIT:'AUDIT酒精',ASRS:'ASRS成人ADHD',N1P2:'N1-P2听觉',RON:'RON重定向',LAN:'左前负波',CPS:'闭合正移',N2B:'N2b目标',PD:'Pd抑制',ERAN:'音乐句法',LPC:'晚期正成分',FRN:'反馈相关负波',CDA:'对侧延迟活动',LDAEP:'响度依赖',C1:'C1视觉',PMN:'音韵失配负波',VPP:'顶点正电位',PE:'错误正波',ORN:'听觉对象负波',MFN:'额中负波',CDT:'画钟测验',STAR:'星形划消'};
const TILE_LABELS_JA={PRL:"確率逆転",DD:"遅延割引",SRTT:"系列反応時間",BART:"風船リスク",OSPAN:"演算スパン",TBIS:"時間二分",GNG:'GO/NO-GO',NBACK:'Nバック',SPATIAL:'空間注意',POSNER:'ポスナー課題',RECALL:'自由再生',WCST:'カード分類',VRT:'視覚再認',STB:'スタンバーグ記憶',TMT:'トレイルメイキング',DSC:'数字記号変換',PNT:'絵命名',MRT:'心的回転',FLANKER:'フランカー課題',STOP:'ストップ信号',STROOP:'ストループ',DST:'数字スパン',FTT:'指タッピング',P300:'聴覚P300',CSR:'コントラスト反転',N400:'N400',MMN:'MMN',P600:'P600',ERN:'ERN',CNV:'CNV',N200:'N200/NO-GO',N170:'N170顔',N2PC:'N2pc',N300:'N300',ELAN:'ELAN',BP:'準備電位',MMNSP:'MMN音声',SSVEP:'SSVEP',P50:'P50感覚ゲーティング',N100:'N100/P200',P100:'P100 フラッシュ',SCP:'緩徐皮質電位',P3A:'P3a新奇',ASSR:'ASSR 40Hz',CPT:'持続注意検査',EMOTSTROOP:'感情ストループ',TASKSWITCH:'タスク切替',DUALTASK:'二重課題',ATTBLINK:'注意の瞬き',SUBITIZE:'数量直感',LEXDEC:'語彙判断',SEMFLUENCY:'意味流暢性',PROSMEM:'展望記憶',SPATWM:'空間WM',MOCA:'MoCA認知検査',REWP:'RewP/FRN',DIGCAN:'数字抹消',ABR:'ABR聴性脳幹反応',SYMSEARCH:'記号探し',PHONFLUE:'FAS語流暢性',JLO:'線分方向判断',PASAT:'PASAT',RAVLT:'RAVLT',CVLT:'CVLT',IGT:'アイオワ賭博課題',TOL:'ロンドン塔',RMET:'心の目テスト',P1N1:'P1/N1空間注意',CNVW:'CNV警告',THALPHA:'シータ/アルファ',LRP:'LRP',SART:'SART',UFOV:'UFOV',PAL:'対連合学習',SRCMEM:'ソース記憶',BNT:'ボストン命名',FER:'表情認識',TOJ:'時間順序判断',MATRIX:'行列推理',META:'メタ認知',PHQ9:'PHQ-9',GAD7:'GAD-7',PCL5:'PCL-5',AUDIT:'AUDIT',ASRS:'ASRS',N1P2:'N1-P2',RON:'RON',LAN:'LAN',CPS:'CPS',N2B:'N2b',PD:'Pd',ERAN:'ERAN',LPC:'LPC',FRN:'FRN',CDA:'CDA',LDAEP:'LDAEP',C1:'C1',PMN:'PMN',VPP:'VPP',PE:'Pe',ORN:'ORN',MFN:'MFN',CDT:'時計描画',STAR:'星抹消'};
const TILE_LABELS_PT={PRL:"REV. PROBAB.",DD:"DESC. ATRASO",SRTT:"TR SERIAL",BART:"RISCO BALÃO",OSPAN:"AMPL. OPER.",TBIS:"BISSEC. TEMP.",GNG:'IR / NÃO IR',NBACK:'N-DE-TRÁS',SPATIAL:'ATENÇÃO ESPACIAL',POSNER:'PARADIGMA POSNER',RECALL:'EVOCAÇÃO LIVRE',WCST:'CLASSIFICAÇÃO',VRT:'RECONO. VISUAL',STB:'MEMÓRIA STERNBERG',TMT:'TESTE DE TRILHA',DSC:'COD. DÍG.-SÍMBOLO',PNT:'NOMEAÇÃO DE FIGURAS',MRT:'ROTAÇÃO MENTAL',FLANKER:'FLANKER ERIKSEN',STOP:'SINAL DE PARADA',STROOP:'STROOP',DST:'AMPLITUDE DÍG.',FTT:'TAPPING DIGITAL',P300:'P300 AUDITIVO',CSR:'REVERSÃO CONTRASTE',N400:'N400',MMN:'MMN',P600:'P600',ERN:'ERN',CNV:'CNV',N200:'N200/NÃO-IR',N170:'N170 ROSTO',N2PC:'N2pc',N300:'N300',ELAN:'ELAN',BP:'POT. PRONTIDÃO',MMNSP:'MMN FALA',SSVEP:'SSVEP',P50:'P50 GATING',N100:'N100/P200',P100:'P100 FLASH',SCP:'SCP',P3A:'P3a NOVIDADE',ASSR:'ASSR 40Hz',CPT:'CPT',EMOTSTROOP:'STROOP EMOC.',TASKSWITCH:'TROCA DE TAREFA',DUALTASK:'TAREFA DUPLA',ATTBLINK:'PISCAR ATEN.',SUBITIZE:'SUBITIZAÇÃO',LEXDEC:'DEC. LÉXICA',SEMFLUENCY:'FLUÊNCIA SEM.',PROSMEM:'MEM. PROSP.',SPATWM:'MT ESPACIAL',MOCA:'MoCA',REWP:'RewP/FRN',DIGCAN:'CANCELAMENTO',ABR:'ABR',SYMSEARCH:'BUSCA SÍMBOLOS',PHONFLUE:'FLUÊNCIA FAS',JLO:'ORIENT. LINHAS',PASAT:'PASAT',RAVLT:'RAVLT',CVLT:'CVLT',IGT:'IOWA GAMBLING',TOL:'TORRE DE LONDRES',RMET:'MENTE NOS OLHOS',P1N1:'P1/N1 ESPACIAL',CNVW:'CNV AVISO',THALPHA:'THETA/ALFA',LRP:'LRP',SART:'SART',UFOV:'UFOV',PAL:'APREND. PAR',SRCMEM:'MEM. FONTE',BNT:'BOSTON NAMING',FER:'EMOCAO FACIAL',TOJ:'ORDEM TEMPORAL',MATRIX:'RACIOC. MATRIZ',META:'METACOGNICAO',PHQ9:'PHQ-9',GAD7:'GAD-7',PCL5:'PCL-5',AUDIT:'AUDIT',ASRS:'ASRS-TDAH',N1P2:'N1-P2',RON:'RON',LAN:'LAN',CPS:'CPS',N2B:'N2b',PD:'Pd',ERAN:'ERAN',LPC:'LPC',FRN:'FRN',CDA:'CDA',LDAEP:'LDAEP',C1:'C1',PMN:'PMN',VPP:'VPP',PE:'Pe',ORN:'ORN',MFN:'MFN',CDT:'RELÓGIO',STAR:'CANCELAR ESTRELAS'};

const TILE_LABELS_HE={PRL:"היפוך הסתברותי",DD:"הנחת עיכוב",SRTT:"זמן תגובה סדרתי",BART:"סיכון בלון",OSPAN:"מוטת פעולות",TBIS:"חציית זמן",GNG:'לך / אל-תלך',NBACK:'N-אחורה',SPATIAL:'קשב מרחבי',POSNER:'פוזנר',RECALL:'זיכרון חופשי',WCST:'מיון קלפים',VRT:'זיהוי חזותי',STB:'סטרנברג',TMT:'מבחן עקבות',DSC:'קידוד ספרות',PNT:'מינוי תמונות',MRT:'סיבוב מנטלי',FLANKER:'פלנקר',STOP:'אות עצירה',STROOP:'סטרופ',DST:'טווח ספרות',FTT:'טפיחת אצבע',P300:'P300 שמיעתי',CSR:'היפוך ניגודיות',N400:'N400',MMN:'MMN',P600:'P600',ERN:'ERN',CNV:'CNV',N200:'N200 / אין-ללכת',N170:'N170 פנים',N2PC:'N2pc',N300:'N300',ELAN:'ELAN',BP:'פוטנציאל מוכנות',MMNSP:'MMN דיבור',SSVEP:'SSVEP',P50:'P50 שערוּר',N100:'N100/P200',P100:'P100 הבזק',SCP:'פוטנציאל גלי',P3A:'P3a חידוש',ASSR:'ASSR 40Hz',CPT:'CPT',EMOTSTROOP:'סטרופ רגשי',TASKSWITCH:'החלפת משימה',DUALTASK:'משימה כפולה',ATTBLINK:'פקיעת קשב',SUBITIZE:'ספירה מהירה',LEXDEC:'החלטה לקסיקלית',SEMFLUENCY:'שטף סמנטי',PROSMEM:'זיכרון פרוספקטיבי',SPATWM:'זיכרון מרחבי',MOCA:'MoCA',REWP:'RewP/FRN',DIGCAN:'מחיקת ספרות',ABR:'ABR',SYMSEARCH:'חיפוש סמלים',PHONFLUE:'שטף פונמי',JLO:'שיפוט קווים',PASAT:'PASAT',RAVLT:'RAVLT',CVLT:'CVLT',IGT:'משחק הימורים',TOL:'מגדל לונדון',RMET:'קריאת עיניים',P1N1:'P1/N1 מרחבי',CNVW:'CNV אזהרה',THALPHA:'תטא/אלפא',LRP:'LRP',SART:'SART',UFOV:'UFOV',PAL:'למידה זוגית',SRCMEM:'זיכרון מקור',BNT:'בוסטון שיום',FER:'רגש פנים',TOJ:'סדר זמני',MATRIX:'חשיבה מטריצה',META:'מטא-קוגניציה',PHQ9:'PHQ-9',GAD7:'GAD-7',PCL5:'PCL-5',AUDIT:'AUDIT',ASRS:'ASRS',N1P2:'N1-P2',RON:'RON',LAN:'LAN',CPS:'CPS',N2B:'N2b',PD:'Pd',ERAN:'ERAN',LPC:'LPC',FRN:'FRN',CDA:'CDA',LDAEP:'LDAEP',C1:'C1',PMN:'PMN',VPP:'VPP',PE:'Pe',ORN:'ORN',MFN:'MFN',CDT:'שעון',STAR:'מחיקת כוכבים'};

const TILE_LABELS_AR={PRL:"تعلّم عكسي",DD:"خصم التأخير",SRTT:"زمن الرجع التسلسلي",BART:"خطر البالون",OSPAN:"مدى العمليات",TBIS:"تنصيف زمني",GNG:'اذهب / لا تذهب',NBACK:'N-للخلف',SPATIAL:'الانتباه المكاني',POSNER:'بوزنر',RECALL:'استرجاع حر',WCST:'فرز البطاقات',VRT:'تعرف بصري',STB:'ستيرنبرغ',TMT:'اختبار المسار',DSC:'ترميز الأرقام',PNT:'تسمية الصور',MRT:'دوران ذهني',FLANKER:'فلانكر',STOP:'إشارة الإيقاف',STROOP:'ستروب',DST:'مدى الأرقام',FTT:'نقر الأصابع',P300:'P300 سمعي',CSR:'عكس التباين',N400:'N400',MMN:'MMN',P600:'P600',ERN:'ERN',CNV:'CNV',N200:'N200 / لا-تذهب',N170:'N170 الوجه',N2PC:'N2pc',N300:'N300',ELAN:'ELAN',BP:'إمكانية الاستعداد',MMNSP:'MMN كلام',SSVEP:'SSVEP',P50:'P50 بوابة',N100:'N100/P200',P100:'P100 وميض',SCP:'إمكانات قشرية',P3A:'P3a جِدَّة',ASSR:'ASSR 40Hz',CPT:'CPT',EMOTSTROOP:'ستروب عاطفي',TASKSWITCH:'تبديل المهام',DUALTASK:'مهمة مزدوجة',ATTBLINK:'رمشة انتباه',SUBITIZE:'تمييز فوري',LEXDEC:'قرار معجمي',SEMFLUENCY:'طلاقة دلالية',PROSMEM:'ذاكرة استشرافية',SPATWM:'ذاكرة مكانية',MOCA:'MoCA',REWP:'RewP/FRN',DIGCAN:'شطب الأرقام',ABR:'ABR',SYMSEARCH:'بحث الرموز',PHONFLUE:'طلاقة صوتية',JLO:'توجيه الخطوط',PASAT:'PASAT',RAVLT:'RAVLT',CVLT:'CVLT',IGT:'مهمة القمار',TOL:'برج لندن',RMET:'قراءة العيون',P1N1:'P1/N1 مكاني',CNVW:'CNV تحذير',THALPHA:'ثيتا/ألفا',LRP:'LRP',SART:'SART',UFOV:'UFOV',PAL:'تعلم الأزواج',SRCMEM:'ذاكرة المصدر',BNT:'تسمية بوسطن',FER:'مشاعر الوجه',TOJ:'ترتيب زمني',MATRIX:'استدلال المصفوفة',META:'ما وراء المعرفة',PHQ9:'PHQ-9',GAD7:'GAD-7',PCL5:'PCL-5',AUDIT:'AUDIT',ASRS:'ASRS',N1P2:'N1-P2',RON:'RON',LAN:'LAN',CPS:'CPS',N2B:'N2b',PD:'Pd',ERAN:'ERAN',LPC:'LPC',FRN:'FRN',CDA:'CDA',LDAEP:'LDAEP',C1:'C1',PMN:'PMN',VPP:'VPP',PE:'Pe',ORN:'ORN',MFN:'MFN',CDT:'رسم الساعة',STAR:'شطب النجوم'};
const TILE_LABELS_NL={PRL:"OMKEERLEREN",DD:"VERDISCONT.",SRTT:"SERIËLE RT",BART:"BALLON-RISICO",OSPAN:"OPERATIESPAN",TBIS:"TIJD-BISECTIE",GNG:'GO / NO-GO',NBACK:'N-TERUG',SPATIAL:'RUIMTELIJK',POSNER:'POSNER',RECALL:'VRIJE OPROEP',WCST:'KAARTSORTERING',VRT:'VISUELE HERK.',STB:'STERNBERG',TMT:'TRAIL MAKING',DSC:'CIJFER-SYMB.',PNT:'BEELDBENOEM.',MRT:'MENT. ROTATIE',FLANKER:'FLANKER',STOP:'STOPSIGNAAL',STROOP:'STROOP',DST:'CIJFERREEKS',FTT:'VINGERTAPPEN',P300:'P300 AUDITIEF',CSR:'CONTR. OMKEER',N400:'N400',MMN:'MMN',P600:'P600',ERN:'ERN',CNV:'CNV',N200:'N200/NO-GO',N170:'N170 GEZICHT',N2PC:'N2pc',N300:'N300',ELAN:'ELAN',BP:'BEREIDH. POT.',MMNSP:'MMN SPRAAK',SSVEP:'SSVEP',P50:'P50 GATING',N100:'N100/P200',P100:'P100 FLITS',SCP:'SCP',P3A:'P3a NIEUWHEID',ASSR:'ASSR 40Hz',CPT:'CPT',EMOTSTROOP:'EMOT. STROOP',TASKSWITCH:'TAAK WISSELEN',DUALTASK:'DUBBELTAAK',ATTBLINK:'AANDACHTSKNIP.',SUBITIZE:'SUBITIZEREN',LEXDEC:'LEX. BESLISS.',SEMFLUENCY:'SEM. VLOEIENDH.',PROSMEM:'PROSP. GEH.',SPATWM:'RUIMT. WG',MOCA:'MoCA',REWP:'RewP/FRN',DIGCAN:'CIJFER SCHRAP.',ABR:'ABR',SYMSEARCH:'SYMBOOLZOEK.',PHONFLUE:'FAS VLOEIEND',JLO:'LIJNORIËNT.',PASAT:'PASAT',RAVLT:'RAVLT',CVLT:'CVLT',IGT:'IOWA GAMBLING',TOL:'TOREN V. LONDEN',RMET:'OGEN-LEZEN',P1N1:'P1/N1 RUIMT.',CNVW:'CNV WAARSCH.',THALPHA:'THETA/ALFA',LRP:'LRP',SART:'SART',UFOV:'UFOV',PAL:'PAARLEREN',SRCMEM:'BRONGEH.',BNT:'BOSTON NAMING',FER:'GEZICHTSEMOTIE',TOJ:'TIJDS. VOLGORDE',MATRIX:'MATRIX REDEN.',META:'METACOGNITIE',PHQ9:'PHQ-9',GAD7:'GAD-7',PCL5:'PCL-5',AUDIT:'AUDIT',ASRS:'ASRS-ADHD',N1P2:'N1-P2',RON:'RON',LAN:'LAN',CPS:'CPS',N2B:'N2b',PD:'Pd',ERAN:'ERAN',LPC:'LPC',FRN:'FRN',CDA:'CDA',LDAEP:'LDAEP',C1:'C1',PMN:'PMN',VPP:'VPP',PE:'Pe',ORN:'ORN',MFN:'MFN',CDT:'KLOK TEKENEN',STAR:'STERREN SCHRAP.'};
const TILE_LABELS_AF={PRL:"OMKEERLEER",DD:"VERTR.-AFSLAG",SRTT:"SERIËLE RT",BART:"BALLON-RISIKO",OSPAN:"OPERASIESPAN",TBIS:"TYD-BISEKSIE",GNG:'GAAN / NIE-GAAN',NBACK:'N-TERUG',SPATIAL:'RUIMTELIK',POSNER:'POSNER',RECALL:'VRYE OPROEP',WCST:'KAART SORTEER',VRT:'VISUELE HERK.',STB:'STERNBERG',TMT:'SPOORMAAK',DSC:'SYFER-SIMB.',PNT:'PRENT BENOEM',MRT:'GEEST ROTASIE',FLANKER:'FLANKER',STOP:'STOPSEIN',STROOP:'STROOP',DST:'SYFERSPAN',FTT:'VINGERTIK',P300:'P300 OUDITIEF',CSR:'KONTR. OMKEER',N400:'N400',MMN:'MMN',P600:'P600',ERN:'ERN',CNV:'CNV',N200:'N200/NIE-GAAN',N170:'N170 GESIG',N2PC:'N2pc',N300:'N300',ELAN:'ELAN',BP:'GEREEDH. POT.',MMNSP:'MMN SPRAAK',SSVEP:'SSVEP',P50:'P50 GATING',N100:'N100/P200',P100:'P100 FLITS',SCP:'SCP',P3A:'P3a NUWIGHEID',ASSR:'ASSR 40Hz',CPT:'CPT',EMOTSTROOP:'EMOSIE STROOP',TASKSWITCH:'TAAKWISSEL',DUALTASK:'DUBBELE TAAK',ATTBLINK:'AANDAGSKNIP',SUBITIZE:'SUBITIZEER',LEXDEC:'LEKS. BESLUIT',SEMFLUENCY:'SEM. VLOEIENDH.',PROSMEM:'PROSP. GEH.',SPATWM:'RUIMT. WG',MOCA:'MoCA',REWP:'RewP/FRN',DIGCAN:'SYFER SKRAP',ABR:'ABR',SYMSEARCH:'SIMBOOL SOEK',PHONFLUE:'FAS VLOEIEND',JLO:'LYN ORIËNT.',PASAT:'PASAT',RAVLT:'RAVLT',CVLT:'CVLT',IGT:'IOWA DOBBEL',TOL:'TORING LONDEN',RMET:'OOG-LEES',P1N1:'P1/N1 RUIMT.',CNVW:'CNV WAARSK.',THALPHA:'THETA/ALFA',LRP:'LRP',SART:'SART',UFOV:'UFOV',PAL:'PAARLEER',SRCMEM:'BRON GEH.',BNT:'BOSTON NAMING',FER:'GESIG EMOSIE',TOJ:'TYDS. VOLGORDE',MATRIX:'MATRIKS REDEN.',META:'METAKOGNISIE',PHQ9:'PHQ-9',GAD7:'GAD-7',PCL5:'PCL-5',AUDIT:'AUDIT',ASRS:'ASRS-ADHD',N1P2:'N1-P2',RON:'RON',LAN:'LAN',CPS:'CPS',N2B:'N2b',PD:'Pd',ERAN:'ERAN',LPC:'LPC',FRN:'FRN',CDA:'CDA',LDAEP:'LDAEP',C1:'C1',PMN:'PMN',VPP:'VPP',PE:'Pe',ORN:'ORN',MFN:'MFN',CDT:'KLOK TEKEN',STAR:'STERRE SKRAP'};
const TILE_LABELS_FI={PRL:"KÄÄNTEISOPP.",DD:"VIIVÄSTYSDISK.",SRTT:"SARJA-RA",BART:"ILMAPALLO-RISKI",OSPAN:"OPERAATIOJÄNNE",TBIS:"AIKA-BISEKTIO",GNG:'MENE / ÄLÄ MENE',NBACK:'N-TAKAISIN',SPATIAL:'TILA-HUOMIO',POSNER:'POSNER',RECALL:'VAPAA PALAUT.',WCST:'KORTTILAJITT.',VRT:'VIS. TUNNIST.',STB:'STERNBERG',TMT:'POLKUTESTI',DSC:'NUM.-SYMB.',PNT:'KUVA NIMEÄM.',MRT:'MIELIKUVAROT.',FLANKER:'FLANKER',STOP:'PYSÄHDYSSIG.',STROOP:'STROOP',DST:'NUMEROSARJA',FTT:'SORMINAPSU',P300:'P300 KUULO',CSR:'KONTR. KÄÄNTÖ',N400:'N400',MMN:'MMN',P600:'P600',ERN:'ERN',CNV:'CNV',N200:'N200/EI-MENE',N170:'N170 KASVOT',N2PC:'N2pc',N300:'N300',ELAN:'ELAN',BP:'VALMIUSPOT.',MMNSP:'MMN PUHE',SSVEP:'SSVEP',P50:'P50 PORTTI',N100:'N100/P200',P100:'P100 VÄLÄHDYS',SCP:'SCP',P3A:'P3a UUTUUS',ASSR:'ASSR 40Hz',CPT:'CPT',EMOTSTROOP:'TUNNE STROOP',TASKSWITCH:'TEHTÄVÄNVAIHTO',DUALTASK:'KAKSOISTEHT.',ATTBLINK:'HUOMION RÄPÄYS',SUBITIZE:'SUBITISOINTI',LEXDEC:'LEKS. PÄÄTÖS',SEMFLUENCY:'SEM. SUJUVUUS',PROSMEM:'PROSP. MUISTI',SPATWM:'TILA TYÖMUISTI',MOCA:'MoCA',REWP:'RewP/FRN',DIGCAN:'NUMERO PYYHK.',ABR:'ABR',SYMSEARCH:'SYMB. HAKU',PHONFLUE:'FAS SUJUVUUS',JLO:'VIIVASUUNTAUS',PASAT:'PASAT',RAVLT:'RAVLT',CVLT:'CVLT',IGT:'IOWA UHKAPELI',TOL:'LONTOON TORNI',RMET:'SILMIEN LUKU',P1N1:'P1/N1 TILA',CNVW:'CNV VAROITUS',THALPHA:'THEETA/ALFA',LRP:'LRP',SART:'SART',UFOV:'UFOV',PAL:'PARI-OPP.',SRCMEM:'LÄHDEMUISTI',BNT:'BOSTON NAMING',FER:'KASVOTUNNE',TOJ:'AIKAJÄRJESTYS',MATRIX:'MATRIISIPÄÄTT.',META:'METAKOGNITIO',PHQ9:'PHQ-9',GAD7:'GAD-7',PCL5:'PCL-5',AUDIT:'AUDIT',ASRS:'ASRS-ADHD',N1P2:'N1-P2',RON:'RON',LAN:'LAN',CPS:'CPS',N2B:'N2b',PD:'Pd',ERAN:'ERAN',LPC:'LPC',FRN:'FRN',CDA:'CDA',LDAEP:'LDAEP',C1:'C1',PMN:'PMN',VPP:'VPP',PE:'Pe',ORN:'ORN',MFN:'MFN',CDT:'KELLOPIIRROS',STAR:'TÄHTIYLIVIIVAUS'};
const TILE_LABELS_RU={PRL:"РЕВЕРС. ОБУЧ.",DD:"ДИСКОНТ ОТСР.",SRTT:"СЕРИЙН. ВР",BART:"ШАРИК (BART)",OSPAN:"ОПЕР. ОБЪЁМ",TBIS:"ВРЕМ. БИСЕКЦ.",GNG:'ИДИ / НЕ ИДИ',NBACK:'N-НАЗАД',SPATIAL:'ПРОСТР. ВНИМАНИЕ',POSNER:'ПОЗНЕР',RECALL:'СВОБ. ПРИПОМИН.',WCST:'СОРТИР. КАРТ',VRT:'ЗРИТ. УЗНАВ.',STB:'СТЕРНБЕРГ',TMT:'СОЕД. СЛЕДОВ',DSC:'ЦИФР-СИМВОЛ',PNT:'НАЗВ. КАРТИНОК',MRT:'МЕНТ. ВРАЩЕНИЕ',FLANKER:'ФЛАНКЕР',STOP:'СТОП-СИГНАЛ',STROOP:'СТРУП',DST:'ОБЪЁМ ЦИФР',FTT:'ПОСТУК. ПАЛЬЦЕВ',P300:'P300 СЛУХ',CSR:'ИНВЕРС. КОНТР.',N400:'N400',MMN:'MMN',P600:'P600',ERN:'ERN',CNV:'CNV',N200:'N200/НЕ ИДИ',N170:'N170 ЛИЦО',N2PC:'N2pc',N300:'N300',ELAN:'ELAN',BP:'ПОТ. ГОТОВН.',MMNSP:'MMN РЕЧЬ',SSVEP:'SSVEP',P50:'P50 ФИЛЬТР',N100:'N100/P200',P100:'P100 ВСПЫШКА',SCP:'SCP',P3A:'P3a НОВИЗНА',ASSR:'ASSR 40Гц',CPT:'CPT',EMOTSTROOP:'ЭМОЦ. СТРУП',TASKSWITCH:'ПЕРЕКЛ. ЗАДАЧ',DUALTASK:'ДВ. ЗАДАЧА',ATTBLINK:'ВНИМ. МИГАНИЕ',SUBITIZE:'СУБИТАЦИЯ',LEXDEC:'ЛЕКС. РЕШЕНИЕ',SEMFLUENCY:'СЕМ. БЕГЛОСТЬ',PROSMEM:'ПРОСП. ПАМЯТЬ',SPATWM:'ПРОСТР. РП',MOCA:'MoCA',REWP:'RewP/FRN',DIGCAN:'ВЫЧЁРК. ЦИФР',ABR:'ABR',SYMSEARCH:'ПОИСК СИМВ.',PHONFLUE:'ФОН. БЕГЛОСТЬ',JLO:'ОРИЕНТ. ЛИНИЙ',PASAT:'PASAT',RAVLT:'RAVLT',CVLT:'CVLT',IGT:'АЙОВА АЗАРТ',TOL:'БАШНЯ ЛОНДОН',RMET:'ГЛАЗА — РАЗУМ',P1N1:'P1/N1 ПРОСТР.',CNVW:'CNV ПРЕДУПР.',THALPHA:'ТЕТА/АЛЬФА',LRP:'LRP',SART:'SART',UFOV:'UFOV',PAL:'ПАРН. УЧЁБА',SRCMEM:'ПАМЯТЬ ИСТОЧН.',BNT:'БОСТОН НАЗВ.',FER:'ЭМОЦ. ЛИЦО',TOJ:'ВРЕМ. ПОРЯДОК',MATRIX:'МАТР. ЛОГИКА',META:'МЕТАКОГНИЦИЯ',PHQ9:'PHQ-9',GAD7:'GAD-7',PCL5:'PCL-5',AUDIT:'AUDIT',ASRS:'ASRS-СДВГ',N1P2:'N1-P2',RON:'RON',LAN:'LAN',CPS:'CPS',N2B:'N2b',PD:'Pd',ERAN:'ERAN',LPC:'LPC',FRN:'FRN',CDA:'CDA',LDAEP:'LDAEP',C1:'C1',PMN:'PMN',VPP:'VPP',PE:'Pe',ORN:'ORN',MFN:'MFN',CDT:'РИС. ЧАСОВ',STAR:'ВЫЧЁРК. ЗВЁЗД',HACHINSKI:'HIS ХАЧИНСКИ',KATZ:'КАТЦ АДЛ',LAWTON:'ЛОУТОН ИАДЛ'};

const PARADIGMS_HE={
  PRL:{name:"למידת היפוך הסתברותית",body:"בחרו בין שני גירויים בתגמול 80/20; הטוב מתהפך ללא התראה. מודד גמישות מבוססת־תגמול וניטור משוב (FRN/RewP).",rules:[{key:"F / J",desc:"בחרו את הגירוי השמאלי (F) או הימני (J)"},{key:"80 / 20",desc:"הטוב מתוגמל ~80%, הרע ~20%"},{key:"היפוך",desc:"הגירוי הטוב והרע מתחלפים ללא התראה"},{key:"זכה-המשך",desc:"הפסד יחיד אינו מעיד על בחירה שגויה"},{key:"מדדים",desc:"דיוק, היפוכים, שגיאות התמדה, זכה-המשך/הפסד-החלף"}]},
  DD:{name:"הנחת עיכוב",body:"בחירות חוזרות בין תגמול קטן-מוקדם לגדול-מאוחר ($1000); מדרגה מאתרת את נקודת האדישות בכל עיכוב ומפיקה k היפרבולי ושטח מתחת לעקומה. מודד אימפולסיביות.",rules:[{key:"F / J",desc:"בחרו את האפשרות השמאלית (F) או הימנית (J)"},{key:"עכשיו מול אחר כך",desc:"סכום קטן עכשיו או $1000 לאחר עיכוב"},{key:"אין תשובה נכונה",desc:"בחרו את מה שאתם באמת מעדיפים"},{key:"עיכובים",desc:"העיכוב גדל מימים לשנים"},{key:"מדדים",desc:"k היפרבולי, ln(k), שטח מתחת לעקומה, % מיידי"}]},
  SRTT:{name:"זמן תגובה סדרתי",body:"לחצו על מקש המשבצת המוארת; המיקומים עוקבים בסתר אחר רצף חוזר, ולכן התגובות מואצות עם הלמידה. בלוק אקראי חושף את הלמידה.",rules:[{key:"D F J K",desc:"לכל משבצת מקש — לחצו על המוארת"},{key:"היו מהירים",desc:"הגיבו במהירות ובדיוק"},{key:"רצף נסתר",desc:"המיקומים עוקבים אחר תבנית חוזרת"},{key:"בלוק אקראי",desc:"בלוק אחד אקראי — זמן התגובה עולה אם נלמד"},{key:"מדדים",desc:"זמן תגובה לפי בלוק, אפקט למידה, דיוק"}]},
  BART:{name:"מטלת סיכון הבלון (BART)",body:"נפחו בלון תמורת כסף; כל ניפוח מוסיף תגמול אך מעלה סיכון פיצוץ. פדו בכל עת; אם יתפוצץ תאבדו את הבלון. ממוצע הניפוחים המתוקנן מודד נטילת סיכון.",rules:[{key:"נפח (F)",desc:"נפחו את הבלון — כל ניפוח מוסיף כסף וסיכון"},{key:"פדה (J)",desc:"שמרו את כסף הבלון הנוכחי והמשיכו"},{key:"פיצוץ",desc:"אם יתפוצץ לפני פדיון — הכסף אובד"},{key:"איזון",desc:"תגמול גדול יותר דורש ניפוחים רבים יותר וסיכון רב יותר"},{key:"מדדים",desc:"ניפוחים מתוקננים, סך זכייה, פיצוצים"}]},
  OSPAN:{name:"מוטת פעולות",body:"החליפו בין שיפוט משוואה קצרה (נכון/לא נכון) לבין זכירת אות; לבסוף שחזרו את האותיות בסדר. מדד הזהב לקיבולת זיכרון עבודה מורכב.",rules:[{key:"משוואה",desc:"האם החישוב נכון? — נכון (T) / לא נכון (F)"},{key:"אות",desc:"אחרי כל משוואה זכרו את האות המוצגת"},{key:"שחזור",desc:"בסוף לחצו על האותיות בסדר המקורי"},{key:"שמרו על קצב",desc:"הגיבו מהר — אל תעצרו לחזור"},{key:"מדדים",desc:"ניקוד חלקי ומוחלט, דיוק חישוב"}]},
  TBIS:{name:"חציית זמן",body:"למדו משך תקן קצר וארוך, ואז שפטו אם כל הבזק קרוב יותר לקצר או לארוך. מפיק את נקודת החצייה ויחס וובר; מערב את ה-CNV.",rules:[{key:"למדו",desc:"תחילה צפו בתקני הקצר והארוך"},{key:"שפטו",desc:"ההבזק היה קצר (F) או ארוך (J)?"},{key:"ללא משוב",desc:"ניסויי המבחן ללא משוב — סמכו על תפיסתכם"},{key:"אל תספרו",desc:"המשכים קצרים — שפטו בתחושה"},{key:"מדדים",desc:"נקודת חצייה, יחס וובר, עקומת שיעור-ארוך"}]},

  GNG:{name:"לך / אל-תלך",body:"מטלת לך/אל-תלך מודדת עיכוב תגובה — היכולת שלך לדכא פעולה דומיננטית. בכל ניסוי מופיע גירוי במרכז. הגב במהירות לגירויי לך (●) ועכב כל תגובה לגירויי אל-תלך (○).",rules:[{key:"F / רווח",desc:"לך — הגב לגירוי המטרה"},{key:"J",desc:"אל-תלך — עכב את התגובה"},{key:"● (מלא)",desc:"לך — הגב מהר ככל האפשר"},{key:"○ (ריק)",desc:"אל-תלך — אל תגיב"},{key:"פסק זמן",desc:"אי-תגובה תוך 1.5 שנ' נחשבת לעיכוב"},{key:"יחס",desc:"70 % ניסויי לך · 30 % ניסויי אל-תלך"}]},
  NBACK:{name:"N-לאחור (1-לאחור)",body:"מטלת N-לאחור מודדת עדכון זיכרון עבודה. בכל ניסוי מופיעה אות. החלט האם האות הנוכחית תואמת לזו שהוצגה ניסוי אחד קודם בדיוק.",rules:[{key:"F / רווח",desc:"התאמה — האות תואמת N ניסויים לאחור"},{key:"J",desc:"אין התאמה — האות אינה תואמת"},{key:"ניסוי ראשון",desc:"אין תשובה נכונה אפשרית — רק התבונן"},{key:"שכיחות",desc:"~35 % מהניסויים הם התאמות"}]},
  SPATIAL:{name:"קשב מרחבי",body:"מודד עיבוד חזותי-מרחבי וקשב סלקטיבי. בכל ניסוי מודגש תא אחד מתוך רשת 3×3. לחץ על התא המודגש מהר ככל האפשר.",rules:[{key:"לחיצה",desc:"לחץ על התא המודגש מהר ככל האפשר"},{key:"דיוק",desc:"לחיצה על תא שגוי נספרת כשגיאה"},{key:"פסק זמן",desc:"אי-תגובה תוך 1.5 שנ' נרשמת כהחמצה"}]},
  POSNER:{name:"פרדיגמת פוזנר",body:"מודדת קשב מרחבי סמוי. רמז מכוון קשב למיקום המטרה הסביר. RT מהיר יותר בניסויים תקפים חושף את יתרון הקשב.",rules:[{key:"רווח / F",desc:"הגב כשהמטרה מופיעה"},{key:"אנדוגני",desc:"חץ מרכזי — הסטת קשב רצונית"},{key:"אקסוגני",desc:"הבזק היקפי — תפיסה רפלקסית אוטומטית"},{key:"יתרון",desc:"יתרון = RT לא-תקף − RT תקף"}]},
  VRT:{name:"זיהוי חזותי",body:"מודד זיכרון אפיזודי חזותי. תבניות גיאומטריות מופשטות מוצגות ללמידה. לאחר מרווח שימור מופיעים זוגות תבניות — אחת שנלמדה ואחת חדשה. זהה את זו שראית.",rules:[{key:"לימוד",desc:"התבונן במטריצת התבניות — 4 שנ' לכל סט"},{key:"מבחן",desc:"שתי תבניות מופיעות — לחץ על זו שנלמדה"},{key:"מדדים",desc:"פגיעות, התרעות שווא, d′ ו-RT"}]},
  CSR:{name:"היפוך ניגודיות",body:"לוח שחמט הופך את קוטביותו ברציפות. רוב ההיפוכים סטנדרטיים. חלק קטן הם היפוכי מטרה — סיבוב של 45° במשך מחזור אחד. הגב ברגע שאתה מזהה את השינוי.",rules:[{key:"רווח",desc:"לחץ כשאתה מזהה היפוך מטרה (מסובב)"},{key:"התבונן",desc:"הלוח הופך ברציפות — שמור קיבוע מבט"},{key:"סטנדרט",desc:"רוב ההיפוכים סטנדרטיים — אל תגיב"},{key:"מטרה",desc:"סיבוב מזדמן של 45° — לחץ רווח מיד"}]},
  P300:{name:"P300 שמיעתי",body:"פרדיגמת ה-oddball השמיעתית מעוררת את רכיב ה-P300. זרם של צלילי סטנדרט תכופים מוצג עם צלילי oddball נדירים שזורים ביניהם. זהה את צליל ה-oddball ולחץ רווח. סטנדרט: 1000 הרץ; oddball: 2000 הרץ. הסתברות: 20 %.",rules:[{key:"רווח",desc:"לחץ על הצליל הנדיר (הגבוה)"},{key:"סטנדרט",desc:"1000 הרץ (תכוף) — אל תגיב"},{key:"ODDBALL",desc:"2000 הרץ (נדיר, 20 %) — לחץ רווח"},{key:"אוזניות",desc:"השתמש באוזניות לאבחנה טובה יותר"}]},
  STB:{name:"זיכרון סטרנברג",body:"מודד מהירות חיפוש בזיכרון עבודה מילולי. סט אותיות מוצג אחת אחת — שנייה לכל אות. לאחר מרווח שימור מופיעה אות-בוחן. ענה כן אם הייתה בסט.",rules:[{key:"F / רווח",desc:"כן — אות הבוחן הייתה בסט"},{key:"J",desc:"לא — אות הבוחן לא הייתה בסט"},{key:"לימוד",desc:"האותיות מופיעות אחת אחת — שנייה לכל אחת"},{key:"מהירות",desc:"הגב במהירות וברמת דיוק מרבית"}]},
  WCST:{name:"מיון קלפי ויסקונסין",body:"מבחן קלאסי לגמישות קוגניטיבית ולתפקוד הביצועי. מיין קלפים לפי כלל נסתר (צבע / צורה / מספר) על סמך משוב. הכלל משתנה ללא התרעה. שגיאות פרסברציה נספרות.",rules:[{key:"1 / 2 / 3 / 4",desc:"בחר את קלף המטרה שאליו הקלף הנוכחי מתאים"},{key:"משוב",desc:"נכון / לא נכון מופיע אחרי כל ניסוי"},{key:"כלל",desc:"צבע, צורה או מספר — הסק לפי מה למיין"},{key:"החלפה",desc:"לאחר 10 נכונים ברצף הכלל מתחלף בשקט"},{key:"פרסברציה",desc:"המשך לפי הכלל הישן = שגיאת פרסברציה"}]},
  RECALL:{name:"זיהוי מילים",body:"מודד זיכרון אפיזודי באמצעות זיהוי (קל יותר להגיב מאשר שליפה חופשית). לומדים רשימת מילים נפוצות, אחת בכל פעם. לאחר משימת הסחה קצרה מוצגות מילים אחת אחת: חלקן היו ברשימה (ישנה) וחלקן חדשות (חדשה). החלט אם ראית כל מילה בשלב הלמידה. פגיעות, אזעקות שווא ו-d′ נרשמים.",rules:[{key:"F = ישנה",desc:"לחץ F אם המילה הייתה ברשימה שנלמדה"},{key:"J = חדשה",desc:"לחץ J אם המילה לא הייתה ברשימה"},{key:"למידה",desc:"קרא כל מילה בעיון — 2 שניות לכל מילה"},{key:"הסחה",desc:"פתור תרגילי חשבון במשך 30 שנ׳"}]},
  TMT:{name:"מבחן עקבות",body:"חלק א': חבר מספרים 1–25 בסדר מהר ככל האפשר. חלק ב': החלף בין מספרים ואותיות (1-א-2-ב-3-ג…). יחס ב'/א' מצביע על החלפת קבוצה — מרכיב מרכזי בתפקוד הביצועי.",rules:[{key:"לחיצה",desc:"לחץ על הצמתים בסדר — אל תדלג"},{key:"חלק א'",desc:"חבר 1–2–3–…–25 — מהירות פסיכומוטורית"},{key:"חלק ב'",desc:"החלף 1–א–2–ב–3–ג… — החלפת קבוצה"},{key:"שגיאות",desc:"לחיצה שגויה = נסה שוב עד להצלחה"}]},
  DSC:{name:"קידוד ספרות-סמלים",body:"תת-מבחן WAIS-IV — מדד הזהב למהירות עיבוד. בחלק העליון מפתח המקשר 1–9 לסמלים ייחודיים. הזן את הסמל מתחת לכל ספרה מהר ככל האפשר במשך 90 שניות.",rules:[{key:"הקלדה",desc:"הזן את הסמל המתאים לכל ספרה"},{key:"מפתח",desc:"המפתח נשאר גלוי לאורך כל המבחן"},{key:"מהירות",desc:"90 שניות — עבד כמה שיותר"},{key:"ניקוד",desc:"מספר הזוגות הנכונים ב-90 שנ'"}]},
  PNT:{name:"שיום תמונות",body:"חפצים יומיומיים מופיעים; קרא בשמם בקול מהר ככל האפשר. קלט קולי מתעד תשובות וזמני תגובה. מודד גישה לקסיקלית ומהירות שיום — פגוע באפזיה ובמחלת אלצהיימר.",rules:[{key:"מיקרופון",desc:"הפעל מיקרופון — קלט קולי נדרש"},{key:"דבר",desc:"הגה את שם החפץ בקול"},{key:"מהירות",desc:"הגב מהר ככל האפשר — RT מנותח"},{key:"פסק זמן",desc:"אי-תשובה תוך 4 שנ' נרשמת כהחמצה"}]},
  MRT:{name:"סיבוב מנטלי",body:"משימה קלאסית של שפרד-מצלר. שתי דמויות תלת-ממדיות מופיעות בכיוונים שונים. החלט אם הן אותה צורה (מסובבת במרחב) או תמונות ראי. RT עולה לינארית עם זווית הסיבוב.",rules:[{key:"F",desc:"אותו דבר — הדמויות זהות לאחר סיבוב"},{key:"J",desc:"ראי — הדמויות הן תמונות ראי"},{key:"סובב",desc:"סובב במחשבתך אחת כדי להתאים לאחרת"},{key:"זווית",desc:"RT עולה לינארית עם הפרש הזווית"}]},
  FLANKER:{name:"פלנקר אריקסן",body:"מדד קלאסי לקשב חזותי סלקטיבי ולשליטה בקונפליקט. הגב לכיוון החץ המרכזי והתעלם מחצי הצדדים. ניסויים אי-קונגרואנטיים (חצי הצדדים מצביעים בכיוון ההפוך) מאטים את ה-RT — אפקט הפלנקר.",rules:[{key:"F",desc:"החץ המרכזי מצביע שמאלה"},{key:"J",desc:"החץ המרכזי מצביע ימינה"},{key:"קונגרואנטי",desc:"כל החצים לאותו כיוון — RT מהיר"},{key:"א-קונגרואנטי",desc:"חצי צד הפוכים — קונפליקט מאט RT"},{key:"אפקט",desc:"עלות קונפליקט = RT א-קונג. − RT קונג."}]},
  STOP:{name:"אות עצירה",body:"מודד עיכוב תגובה באמצעות הליך מדורג. הגב לחצים. בחלק קטן מהניסויים מתנגן אות עצירה (צליל) — נסה לעכב את התגובה. SSRT (זמן תגובה לאות עצירה) מצביע על מהירות העיכוב.",rules:[{key:"F / J",desc:"הגב לכיוון החץ"},{key:"אות עצירה",desc:"עם צליל — אל תלחץ"},{key:"מדרגה",desc:"SSD עולה אחרי עיכוב מוצלח, יורד אחרי כישלון"},{key:"SSRT",desc:"ממוצע RT-לך − SSD סופי = SSRT"}]},
  STROOP:{name:"סטרופ צבע-מילה",body:"מבחן קלאסי של שליטה ביצועית. מילות צבע (אדום, כחול, ירוק) מופיעות בדיו צבעוני. הגב לצבע הדיו והתעלם מהמילה. ניסויים א-קונגרואנטיים (המילה «אדום» בדיו ירוק) מאטים את ה-RT — אינטרפרנציית סטרופ.",rules:[{key:"R",desc:"הדיו אדום"},{key:"G",desc:"הדיו ירוק"},{key:"B",desc:"הדיו כחול"},{key:"התעלם",desc:"הגב לצבע — אל תקרא את המילה"},{key:"אפקט",desc:"אינטרפרנציה = RT א-קונג. − RT קונג."}]},
  DST:{name:"טווח ספרות (WAIS-IV)",body:"מדד קלאסי לזיכרון עבודה מילולי. ספרות מוצגות אחת אחת. קדימה: חזור על אותו סדר. אחורה: חזור בסדר הפוך. אורך הסדרה המרבי שהצלחת לחזור עליו = הטווח שלך.",rules:[{key:"הקשב",desc:"ספרות מוצגות — שנייה לכל אחת"},{key:"קדימה",desc:"הקלד באותו סדר"},{key:"אחורה",desc:"הקלד בסדר הפוך"},{key:"מדרגה",desc:"האורך עולה אחרי 2 נכונים ברצף"},{key:"טווח",desc:"הסדרה הארוכה ביותר שחזרת עליה נכון"}]},
  FTT:{name:"הקשת אצבעות",body:"הקשה הלסטד-רייטן. הקש על מקש הרווח מהר ככל האפשר במשך 10 שנ'. חמישה בלוקים לכל יד (דומיננטית → לא-דומיננטית → מתחלף). מודד מהירות מוטורית, סדירות וקואורדינציה דו-ידנית.",rules:[{key:"רווח",desc:"הקש מהר ככל האפשר — כל 10 השנ'"},{key:"5 בלוקים",desc:"5 ניסויים של 10 שנ' לכל תנאי"},{key:"דומיננטית",desc:"התחל ביד הדומיננטית"},{key:"לא-דומ.",desc:"לאחר מכן היד הלא-דומיננטית"},{key:"ממוצע",desc:"ממוצע הקשות לבלוק — מדד עיקרי"}]},
  N400:{name:"פריימינג סמנטי N400",body:"רכיב ה-N400 מצביע על עיבוד סמנטי. משפטים מוצגים מילה במילה ומסתיימים במילה צפויה (קונגרואנטית) או בלתי צפויה (א-קונגרואנטית). החלט אם המילה האחרונה הגיונית. משפטים א-קונגרואנטיים מעוררים N400 גדול יותר באזורים מרכזיים-קודקודיים ~400 מ"+'"'+"ש.",rules:[{key:"F / רווח",desc:"הגיוני — המשפט קונגרואנטי"},{key:"J",desc:"לא הגיוני — המילה האחרונה לא צפויה"},{key:"N400",desc:"שיא שלילי מרכזי-קודקודי ~400 מ\"ש"},{key:"גדול יותר",desc:"N400 גדול יותר עבור הפרות סמנטיות"}]},
  MMN:{name:"שליליות אי-התאמה (MMN)",body:"פרדיגמת oddball שמיעתית פסיבית. צלילים של 1000 הרץ (סטנדרט, 85 %) ו-1200 הרץ (חורג, 15 %) מוצגים דרך אוזניות. MMN היא תגובה אוטומטית טרום-קשבית ~150–250 מ\"ש מעל אזורים פרונטו-מרכזיים. אין צורך בקשב.",rules:[{key:"הקשב",desc:"הקשב פסיבית דרך אוזניות"},{key:"סטנדרט",desc:"1000 הרץ (85 %)"},{key:"חורג",desc:"1200 הרץ (15 %) — שונה בתדר"},{key:"MMN",desc:"שלילי פרונטו-מרכזי ~150–250 מ\"ש"},{key:"טרום-קשבי",desc:"אין צורך במשימה פעילה — צפה בסרט שקט"}]},
  P600:{name:"P600 תחבירי",body:"רכיב ה-P600 מצביע על עיבוד תחבירי. משפטים עם הפרות דקדוקיות (למשל התאמת מספר שגויה) או בלעדיהן מוצגים מילה במילה. החלט אם המשפט תקין דקדוקית. הפרות מעוררות הסטה חיובית ~500–800 מ\"ש באזורים קודקודיים.",rules:[{key:"F / רווח",desc:"נכון — המשפט דקדוקי"},{key:"J",desc:"שגיאה — המשפט מכיל שגיאה תחבירית"},{key:"P600",desc:"שיא חיובי קודקודי 500–800 מ\"ש"},{key:"הבדל",desc:"P600 ניתן להבחנה מ-N400 (סמנטיקה)"}]},
  ERN:{name:"שליליות קשורת-שגיאה",body:"מטלת בחירה כפויה מהירה מעוררת שגיאות. חצים מופיעים במרכז; לחץ F לשמאל, J לימין. תנאי מהירות (~400 מ\"ש לתגובה) מבטיח שגיאות. ERN היא שליליות פרונטו-מרכזית 0–100 מ\"ש לאחר תגובה שגויה, המופקת על ידי קליפת הצינגולום הקדמית.",rules:[{key:"F",desc:"חץ שמאלה"},{key:"J",desc:"חץ ימינה"},{key:"מהירות",desc:"הגב מהר מאוד — שגיאות רצויות"},{key:"ERN",desc:"שלילי פרונטו-מרכזי 0–100 מ\"ש אחרי שגיאה"},{key:"מקור",desc:"מופק על ידי הצינגולום הקדמי (ACC)"}]},
  CNV:{name:"שונות שלילית מותנית",body:"S1 (אזהרה) → S2 (ציווי). הגב ל-S2 מהר ככל האפשר. הסטה שלילית איטית בין S1 ל-S2 משקפת הכנה מוטורית וציפייה זמנית. CNV פרונטלי מופק על ידי קליפת הצינגולום הקדמית וקליפה מוטורית משלימה.",rules:[{key:"S1",desc:"רמז אזהרה שמיעתי או חזותי"},{key:"S2",desc:"גירוי ציווי לאחר 1500 מ\"ש"},{key:"רווח",desc:"הגב ל-S2 מהר ככל האפשר"},{key:"CNV",desc:"הסטה שלילית איטית בין S1 ל-S2 פרונטו-מרכזית"},{key:"מקור",desc:"צינגולום קדמי ו-SMA"}]}
};
const PARADIGMS_AR={
  PRL:{name:"التعلّم العكسي الاحتمالي",body:"اختر بين مثيرين بمكافأة 80/20؛ الأفضل ينعكس دون إنذار. يقيس المرونة القائمة على المكافأة ومراقبة التغذية الراجعة (FRN/RewP).",rules:[{key:"F / J",desc:"اختر المثير الأيسر (F) أو الأيمن (J)"},{key:"80 / 20",desc:"الجيد يُكافأ ~80% والسيئ ~20%"},{key:"انعكاس",desc:"يتبادل المثيران الجيد والسيئ دون إنذار"},{key:"اربح-ابقَ",desc:"خسارة واحدة لا تعني اختيارًا خاطئًا"},{key:"المقاييس",desc:"الدقة، الانعكاسات، أخطاء المثابرة، اربح-ابقَ/اخسر-بدّل"}]},
  DD:{name:"خصم التأخير",body:"اختيارات متكررة بين مكافأة أصغر-أبكر وأكبر-أأجَل ($1000)؛ يجد السلّم نقطة اللامبالاة لكل تأخير، ويعطي k الزائدي والمساحة تحت المنحنى. يقيس الاندفاعية.",rules:[{key:"F / J",desc:"اختر الخيار الأيسر (F) أو الأيمن (J)"},{key:"الآن مقابل لاحقًا",desc:"مبلغ أصغر الآن أو $1000 بعد تأخير"},{key:"لا إجابة خاطئة",desc:"اختر ما تفضّله فعلًا"},{key:"التأخيرات",desc:"يزداد التأخير من أيام إلى سنوات"},{key:"المقاييس",desc:"k الزائدي، ln(k)، المساحة تحت المنحنى، % الفوري"}]},
  SRTT:{name:"زمن الرجع التسلسلي",body:"اضغط مفتاح المربّع المضيء؛ تتبع المواضع سرًّا تسلسلًا متكررًا، فتتسارع الاستجابات مع التعلّم الضمني. تكشف كتلة عشوائية عن التعلّم.",rules:[{key:"D F J K",desc:"لكل مربّع مفتاح — اضغط المضيء"},{key:"كن سريعًا",desc:"استجب بسرعة ودقة"},{key:"تسلسل خفي",desc:"تتبع المواضع نمطًا متكررًا"},{key:"كتلة عشوائية",desc:"كتلة واحدة عشوائية — يرتفع زمن الرجع إن تعلّمت"},{key:"المقاييس",desc:"زمن الرجع لكل كتلة، أثر التعلّم، الدقة"}]},
  BART:{name:"مهمة خطر البالون (BART)",body:"انفخ بالونًا مقابل المال؛ كل نفخة تضيف مكافأة لكنها ترفع خطر الانفجار. اسحب في أي وقت؛ إن انفجر خسرت ذلك البالون. متوسط النفخات المُعدّل يقيس المجازفة.",rules:[{key:"انفخ (F)",desc:"انفخ البالون — كل نفخة تضيف مالًا وخطرًا"},{key:"اسحب (J)",desc:"احفظ مال البالون الحالي وتابع"},{key:"انفجار",desc:"إن انفجر قبل السحب يُفقد المال"},{key:"مفاضلة",desc:"المكافأة الأكبر تتطلب نفخات أكثر وخطرًا أعلى"},{key:"المقاييس",desc:"النفخات المُعدّلة، الإجمالي المكتسب، الانفجارات"}]},
  OSPAN:{name:"مدى العمليات",body:"بادل بين الحكم على معادلة قصيرة (صح/خطأ) وتذكّر حرف؛ ثم استرجع الحروف بالترتيب. المقياس المرجعي لسعة الذاكرة العاملة المركّبة.",rules:[{key:"معادلة",desc:"هل الحساب صحيح؟ — صح (T) / خطأ (F)"},{key:"حرف",desc:"بعد كل معادلة تذكّر الحرف المعروض"},{key:"استرجاع",desc:"في النهاية انقر الحروف بترتيبها الأصلي"},{key:"حافظ على الإيقاع",desc:"استجب بسرعة — لا تتوقف للتكرار"},{key:"المقاييس",desc:"الدرجة الجزئية والمطلقة، دقة الحساب"}]},
  TBIS:{name:"التنصيف الزمني",body:"تعلّم مدة معيارية قصيرة وأخرى طويلة، ثم احكم أيّ وميض أقرب إلى القصيرة أو الطويلة. يعطي نقطة التنصيف ونسبة فيبر؛ يُشرك الـ CNV.",rules:[{key:"تعلّم",desc:"شاهد أولًا المعياريْن القصير والطويل"},{key:"احكم",desc:"هل الوميض أقصر (F) أم أطول (J)؟"},{key:"بلا تغذية راجعة",desc:"تجارب الاختبار بلا تغذية راجعة — ثق بإدراكك"},{key:"لا تعدّ",desc:"المدد قصيرة — احكم بالإحساس"},{key:"المقاييس",desc:"نقطة التنصيف، نسبة فيبر، منحنى نسبة-الطويل"}]},

  GNG:{name:"اذهب / لا تذهب",body:"تقيس مهمة اذهب/لا تذهب كبح الاستجابة — قدرتك على قمع فعل سائد. في كل تجربة يظهر منبه في الوسط. استجب بسرعة لمنبهات اذهب (●) وامنع أي استجابة لمنبهات لا تذهب (○).",rules:[{key:"F / مسافة",desc:"اذهب — استجب للمنبه المستهدف"},{key:"J",desc:"لا تذهب — امنع الاستجابة"},{key:"● (ممتلئ)",desc:"اذهب — استجب بأسرع ما يمكن"},{key:"○ (مفتوح)",desc:"لا تذهب — لا تستجب"},{key:"مهلة",desc:"عدم الاستجابة خلال 1.5 ث يُحتسب امتناعًا"},{key:"النسبة",desc:"70 % تجارب اذهب · 30 % تجارب لا تذهب"}]},
  NBACK:{name:"N-للخلف (1-للخلف)",body:"تقيس مهمة N-للخلف تحديث الذاكرة العاملة. في كل تجربة يظهر حرف. قرر ما إذا كان الحرف الحالي يطابق ذلك الذي عُرض بالضبط قبل تجربة واحدة.",rules:[{key:"F / مسافة",desc:"تطابق — الحرف يطابق N تجارب للخلف"},{key:"J",desc:"لا تطابق — الحرف لا يطابق"},{key:"التجربة الأولى",desc:"لا توجد إجابة صحيحة ممكنة — راقب فقط"},{key:"التردد",desc:"~35 % من التجارب متطابقات"}]},
  SPATIAL:{name:"الانتباه المكاني",body:"يقيس المعالجة البصرية-المكانية والانتباه الانتقائي. في كل تجربة تُبرز خلية واحدة من شبكة 3×3. انقر على الخلية المبرزة بأسرع ما يمكن.",rules:[{key:"نقر",desc:"انقر على الخلية المبرزة بأسرع ما يمكن"},{key:"الدقة",desc:"النقر على خلية خاطئة يُحتسب خطأً"},{key:"مهلة",desc:"عدم الاستجابة خلال 1.5 ث يُسجّل تفويتًا"}]},
  POSNER:{name:"نموذج بوزنر",body:"يقيس الانتباه المكاني الخفي. تشير إشارة إلى موقع الهدف المحتمل. RT أسرع في التجارب الصحيحة يكشف عن فائدة الانتباه.",rules:[{key:"مسافة / F",desc:"استجب عند ظهور الهدف"},{key:"داخلي المنشأ",desc:"سهم مركزي — تحويل إرادي للانتباه"},{key:"خارجي المنشأ",desc:"وميض طرفي — التقاط انعكاسي تلقائي"},{key:"فائدة",desc:"الفائدة = RT غير صحيح − RT صحيح"}]},
  VRT:{name:"التعرف البصري",body:"يقيس الذاكرة العَرَضية البصرية. تُعرض أنماط هندسية مجردة للدراسة. بعد فترة احتفاظ تظهر أزواج من الأنماط — واحد مدروس وواحد جديد. حدد الذي رأيته.",rules:[{key:"الدراسة",desc:"تأمل مصفوفة الأنماط — 4 ث لكل مجموعة"},{key:"الاختبار",desc:"يظهر نمطان — انقر على المدروس"},{key:"المقاييس",desc:"الإصابات، الإنذارات الكاذبة، d′ و RT"}]},
  CSR:{name:"عكس التباين",body:"تعكس رقعة شطرنج قطبيتها باستمرار. معظم الانعكاسات قياسية. جزء صغير هو انعكاسات الهدف — دوران 45° لمدة دورة واحدة. استجب فور اكتشاف التغيير.",rules:[{key:"مسافة",desc:"اضغط عند اكتشاف انعكاس هدف (مُدوَّر)"},{key:"راقب",desc:"الرقعة تنعكس باستمرار — حافظ على التركيز"},{key:"قياسي",desc:"معظم الانعكاسات قياسية — لا تستجب"},{key:"هدف",desc:"دوران عرضي 45° — اضغط مسافة فورًا"}]},
  P300:{name:"P300 السمعي",body:"يستثير نموذج oddball السمعي مركّب P300. يُعرض تيار من النغمات القياسية المتكررة مع نغمات oddball نادرة متداخلة. اكتشف نغمة oddball واضغط مسافة. القياسي: 1000 هرتز؛ oddball: 2000 هرتز. الاحتمال: 20 %.",rules:[{key:"مسافة",desc:"اضغط على النغمة النادرة (العالية)"},{key:"قياسي",desc:"1000 هرتز (متكرر) — لا تستجب"},{key:"ODDBALL",desc:"2000 هرتز (نادر، 20 %) — اضغط مسافة"},{key:"سماعات",desc:"استخدم سماعات لتمييز أفضل"}]},
  STB:{name:"ذاكرة ستيرنبرغ",body:"تقيس سرعة البحث في الذاكرة العاملة اللفظية. تُعرض مجموعة حروف واحدًا تلو الآخر — ثانية لكل حرف. بعد فترة احتفاظ يظهر حرف-مسبار. أجب نعم إذا كان في المجموعة.",rules:[{key:"F / مسافة",desc:"نعم — حرف المسبار كان في المجموعة"},{key:"J",desc:"لا — حرف المسبار لم يكن في المجموعة"},{key:"الدراسة",desc:"الحروف تظهر واحدًا تلو الآخر — ثانية لكل منها"},{key:"السرعة",desc:"استجب بأسرع وأدق ما يمكن"}]},
  WCST:{name:"فرز بطاقات ويسكونسن",body:"اختبار كلاسيكي للمرونة المعرفية والوظيفة التنفيذية. صنّف البطاقات وفق قاعدة خفية (لون / شكل / عدد) بناءً على التغذية الراجعة. القاعدة تتغير دون تحذير. تُحتسب أخطاء المثابرة.",rules:[{key:"1 / 2 / 3 / 4",desc:"اختر بطاقة الهدف التي تنطبق عليها البطاقة الحالية"},{key:"تغذية راجعة",desc:"صحيح / خطأ يظهر بعد كل تجربة"},{key:"قاعدة",desc:"لون أو شكل أو عدد — استنتج معيار الفرز"},{key:"تبديل",desc:"بعد 10 صحيحة متتالية تتغير القاعدة بصمت"},{key:"مثابرة",desc:"الاستمرار وفق القاعدة القديمة = خطأ مثابرة"}]},
  RECALL:{name:"التعرّف على الكلمات",body:"يقيس الذاكرة العَرَضية عبر التعرّف (أسهل في الإجابة من الاسترجاع الحر). تُدرَس قائمة من الكلمات الشائعة واحدة تلو الأخرى. بعد مهمة إلهاء قصيرة تُعرض كلمات واحدة تلو الأخرى: بعضها كان في القائمة (قديمة) وبعضها جديد (جديدة). قرّر إن كنت قد رأيت كل كلمة أثناء الدراسة. تُسجَّل الإصابات والإنذارات الكاذبة وقيمة d′.",rules:[{key:"F = قديمة",desc:"اضغط F إذا كانت الكلمة في القائمة المدروسة"},{key:"J = جديدة",desc:"اضغط J إذا لم تكن الكلمة في القائمة"},{key:"الدراسة",desc:"اقرأ كل كلمة بعناية — ثانيتان لكل كلمة"},{key:"الإلهاء",desc:"حلّ مسائل حسابية لمدة 30 ث"}]},
  TMT:{name:"اختبار صنع المسار",body:"الجزء أ: صل الأرقام 1–25 بالترتيب بأسرع ما يمكن. الجزء ب: تناوب بين الأرقام والحروف (1-أ-2-ب-3-ج…). نسبة ب/أ تشير إلى تبديل المجموعة — مكوّن أساسي للوظيفة التنفيذية.",rules:[{key:"نقر",desc:"انقر العقد بالترتيب — لا تتجاوز"},{key:"الجزء أ",desc:"صل 1–2–3–…–25 — السرعة الحركية النفسية"},{key:"الجزء ب",desc:"تناوب 1–أ–2–ب–3–ج… — تبديل المجموعة"},{key:"أخطاء",desc:"نقرة خاطئة = حاول مجددًا حتى تصيب"}]},
  DSC:{name:"ترميز الأرقام-الرموز",body:"اختبار فرعي من WAIS-IV — المعيار الذهبي لسرعة المعالجة. في الأعلى مفتاح يربط 1–9 برموز فريدة. أدخل الرمز تحت كل رقم بأسرع ما يمكن خلال 90 ثانية.",rules:[{key:"كتابة",desc:"أدخل الرمز المناسب لكل رقم"},{key:"المفتاح",desc:"يبقى المفتاح مرئيًا طوال الاختبار"},{key:"السرعة",desc:"90 ثانية — عالج أكبر عدد ممكن"},{key:"الدرجة",desc:"عدد الأزواج الصحيحة في 90 ث"}]},
  PNT:{name:"تسمية الصور",body:"تظهر أشياء يومية؛ سمِّها بصوت عالٍ بأسرع ما يمكن. الإدخال الصوتي يسجل الإجابات وأزمنة الاستجابة. يقيس الوصول المعجمي وسرعة التسمية — معطّل في الحبسة وداء ألزهايمر.",rules:[{key:"ميكروفون",desc:"شغّل الميكروفون — الإدخال الصوتي مطلوب"},{key:"تكلم",desc:"انطق اسم الشيء بصوت عالٍ"},{key:"السرعة",desc:"استجب بأسرع ما يمكن — يُحلَّل RT"},{key:"مهلة",desc:"عدم الاستجابة خلال 4 ث يُسجّل تفويتًا"}]},
  MRT:{name:"الدوران الذهني",body:"مهمة شيبارد-ميتزلر الكلاسيكية. يظهر شكلان ثلاثيا الأبعاد في اتجاهين مختلفين. قرر ما إذا كانا الشكل ذاته (مُدوَّر في الفضاء) أم صورتين مرآويتين. RT يزداد خطيًا مع زاوية الدوران.",rules:[{key:"F",desc:"متطابقان — الشكلان متطابقان بعد الدوران"},{key:"J",desc:"مرآة — الشكلان صورتان مرآويتان"},{key:"أدر",desc:"أدر ذهنيًا أحدهما ليطابق الآخر"},{key:"الزاوية",desc:"RT يرتفع خطيًا مع فرق الزاوية"}]},
  FLANKER:{name:"فلانكر أريكسن",body:"مقياس كلاسيكي للانتباه البصري الانتقائي والتحكم في الصراع. استجب لاتجاه السهم المركزي وتجاهل أسهم الجانبين. التجارب غير المتطابقة (الأسهم الجانبية في الاتجاه المعاكس) تبطئ RT — أثر فلانكر.",rules:[{key:"F",desc:"السهم المركزي يشير إلى اليسار"},{key:"J",desc:"السهم المركزي يشير إلى اليمين"},{key:"متطابق",desc:"كل الأسهم في الاتجاه نفسه — RT سريع"},{key:"غير متطابق",desc:"الأسهم الجانبية معاكسة — الصراع يبطئ RT"},{key:"الأثر",desc:"تكلفة الصراع = RT غير متطابق − RT متطابق"}]},
  STOP:{name:"إشارة الإيقاف",body:"يقيس كبح الاستجابة عبر إجراء تدريجي. استجب للأسهم. في جزء صغير من التجارب تُشغَّل إشارة إيقاف (نغمة) — حاول كبح الاستجابة. SSRT (زمن استجابة إشارة الإيقاف) يشير إلى سرعة الكبح.",rules:[{key:"F / J",desc:"استجب لاتجاه السهم"},{key:"إشارة الإيقاف",desc:"عند سماع نغمة — لا تضغط"},{key:"درجة",desc:"SSD يرتفع بعد كبح ناجح، ينخفض بعد فشل"},{key:"SSRT",desc:"متوسط RT-اذهب − SSD النهائي = SSRT"}]},
  STROOP:{name:"ستروب اللون-الكلمة",body:"اختبار كلاسيكي للتحكم التنفيذي. تظهر كلمات الألوان (أحمر، أزرق، أخضر) بحبر ملون. استجب للون الحبر وتجاهل الكلمة. التجارب غير المتطابقة (كلمة «أحمر» بحبر أخضر) تبطئ RT — تداخل ستروب.",rules:[{key:"R",desc:"الحبر أحمر"},{key:"G",desc:"الحبر أخضر"},{key:"B",desc:"الحبر أزرق"},{key:"تجاهل",desc:"استجب للون — لا تقرأ الكلمة"},{key:"الأثر",desc:"التداخل = RT غير متطابق − RT متطابق"}]},
  DST:{name:"مدى الأرقام (WAIS-IV)",body:"مقياس كلاسيكي للذاكرة العاملة اللفظية. تُعرض الأرقام واحدًا تلو الآخر. للأمام: كرّر بالترتيب نفسه. للخلف: كرّر بالترتيب العكسي. الطول الأقصى لسلسلة كررتها بنجاح = مداك.",rules:[{key:"استمع",desc:"تُعرض الأرقام — ثانية لكل رقم"},{key:"للأمام",desc:"أدخل بالترتيب نفسه"},{key:"للخلف",desc:"أدخل بالترتيب العكسي"},{key:"درجة",desc:"الطول يزداد بعد 2 صحيحين متتاليين"},{key:"المدى",desc:"أطول سلسلة كررتها صحيحة"}]},
  FTT:{name:"نقر الأصابع",body:"نقر هالستيد-ريتان. انقر على شريط المسافة بأسرع ما يمكن لمدة 10 ث. خمسة كتل لكل يد (مسيطرة → غير مسيطرة → متناوب). يقيس السرعة الحركية، الانتظام، والتنسيق الثنائي اليدين.",rules:[{key:"مسافة",desc:"انقر بأسرع ما يمكن — طوال 10 ث"},{key:"5 كتل",desc:"5 تجارب من 10 ث لكل حالة"},{key:"مسيطرة",desc:"ابدأ باليد المسيطرة"},{key:"غير مس.",desc:"ثم اليد غير المسيطرة"},{key:"متوسط",desc:"متوسط النقرات لكل كتلة — المقياس الرئيسي"}]},
  N400:{name:"تهيئة دلالية N400",body:"يشير مركّب N400 إلى المعالجة الدلالية. تُعرض الجمل كلمة كلمة وتنتهي إما بكلمة متوقعة (متطابقة) أو غير متوقعة (غير متطابقة). قرر ما إذا كانت الكلمة الأخيرة منطقية. الجمل غير المتطابقة تثير N400 أكبر في المناطق المركزية-الجدارية ~400 مللي ث.",rules:[{key:"F / مسافة",desc:"منطقي — الجملة متطابقة"},{key:"J",desc:"غير منطقي — الكلمة الأخيرة غير متوقعة"},{key:"N400",desc:"ذروة سلبية مركزية-جدارية ~400 مللي ث"},{key:"أكبر",desc:"N400 أكبر للانتهاكات الدلالية"}]},
  MMN:{name:"سلبية عدم التطابق (MMN)",body:"نموذج oddball سمعي سلبي. تُعرض نغمات 1000 هرتز (قياسية، 85 %) و 1200 هرتز (شاذة، 15 %) عبر سماعات. MMN استجابة تلقائية سابقة للانتباه ~150–250 مللي ث فوق المناطق الجبهية-المركزية. لا يلزم الانتباه.",rules:[{key:"استمع",desc:"استمع سلبيًا عبر السماعات"},{key:"قياسي",desc:"1000 هرتز (85 %)"},{key:"شاذ",desc:"1200 هرتز (15 %) — يختلف في التردد"},{key:"MMN",desc:"سلبية جبهية-مركزية ~150–250 مللي ث"},{key:"سابق للانتباه",desc:"لا تلزم مهمة فعالة — شاهد فيلمًا صامتًا"}]},
  P600:{name:"P600 النحوي",body:"يشير مركّب P600 إلى المعالجة النحوية. تُعرض جمل تحتوي على انتهاكات نحوية (مثل تطابق العدد الخاطئ) أو لا تحتوي، كلمة كلمة. قرر ما إذا كانت الجملة صحيحة نحويًا. الانتهاكات تثير تحوّلًا إيجابيًا ~500–800 مللي ث في المناطق الجدارية.",rules:[{key:"F / مسافة",desc:"صحيح — الجملة نحوية"},{key:"J",desc:"خطأ — الجملة تحتوي على خطأ نحوي"},{key:"P600",desc:"ذروة إيجابية جدارية 500–800 مللي ث"},{key:"الفرق",desc:"P600 يتميّز عن N400 (الدلالات)"}]},
  ERN:{name:"السلبية المرتبطة بالخطأ",body:"مهمة الاختيار القسري السريعة تحفّز الأخطاء. تظهر أسهم في المركز؛ اضغط F لليسار، J لليمين. نظام سرعة (~400 مللي ث للاستجابة) يضمن وقوع أخطاء. ERN سلبية جبهية-مركزية 0–100 مللي ث بعد الاستجابة الخاطئة، تولّدها القشرة الحزامية الأمامية.",rules:[{key:"F",desc:"سهم لليسار"},{key:"J",desc:"سهم لليمين"},{key:"السرعة",desc:"استجب بسرعة كبيرة — الأخطاء مرغوبة"},{key:"ERN",desc:"سلبية جبهية-مركزية 0–100 مللي ث بعد الخطأ"},{key:"المصدر",desc:"تولّدها القشرة الحزامية الأمامية (ACC)"}]},
  CNV:{name:"التباين السلبي المشروط",body:"S1 (تحذير) → S2 (أمر). استجب لـ S2 بأسرع ما يمكن. تحوّل سلبي بطيء بين S1 و S2 يعكس الاستعداد الحركي والتوقع الزمني. CNV الجبهي تولّده القشرة الحزامية الأمامية والقشرة الحركية المكمّلة.",rules:[{key:"S1",desc:"إشارة تحذير سمعية أو بصرية"},{key:"S2",desc:"منبه أمر بعد 1500 مللي ث"},{key:"مسافة",desc:"استجب لـ S2 بأسرع ما يمكن"},{key:"CNV",desc:"تحوّل سلبي بطيء بين S1 و S2 جبهي-مركزي"},{key:"المصدر",desc:"الحزامية الأمامية و SMA"}]}
};
const PARADIGMS_NL={
  PRL:{name:"PROBABILISTISCH OMKEERLEREN",body:"Kies tussen twee stimuli met 80/20-beloning; de betere keert zonder waarschuwing om. Meet beloningsgebaseerde flexibiliteit en feedbackmonitoring (FRN/RewP).",rules:[{key:"F / J",desc:"Kies de LINKER (F) of RECHTER (J) stimulus"},{key:"80 / 20",desc:"De goede wordt ~80% beloond, de slechte ~20%"},{key:"OMKERING",desc:"Goede en slechte stimulus wisselen zonder waarschuwing"},{key:"WINST-BLIJF",desc:"Eén verlies betekent geen verkeerde keuze"},{key:"MATEN",desc:"Nauwkeurigheid, omkeringen, perseveratieve fouten, winst-blijf/verlies-wissel"}]},
  DD:{name:"UITGESTELDE VERDISCONTERING",body:"Herhaalde keuzes tussen een kleiner-eerder en een groter-later ($1000) beloning; een trap vindt het indifferentiepunt per uitstel en geeft de hyperbolische k en oppervlakte onder de curve. Meet impulsiviteit.",rules:[{key:"F / J",desc:"Kies de LINKER (F) of RECHTER (J) optie"},{key:"NU vs LATER",desc:"Een kleiner bedrag nu of $1000 na een uitstel"},{key:"GEEN FOUT ANTWOORD",desc:"Kies de optie die je echt verkiest"},{key:"UITSTELLEN",desc:"Het uitstel groeit van dagen naar jaren"},{key:"MATEN",desc:"Hyperbolische k, ln(k), oppervlakte onder curve, % onmiddellijk"}]},
  SRTT:{name:"SERIËLE REACTIETIJD",body:"Druk op de toets van het oplichtende vak; de posities volgen heimelijk een herhalende reeks, dus reacties versnellen naarmate die wordt geleerd. Een willekeurig blok onthult het leren.",rules:[{key:"D F J K",desc:"Elk vak heeft een toets — druk op het oplichtende"},{key:"WEES SNEL",desc:"Reageer snel en nauwkeurig"},{key:"VERBORGEN REEKS",desc:"De posities volgen een herhalend patroon"},{key:"WILLEKEURIG BLOK",desc:"Eén blok is willekeurig — de RT stijgt bij leren"},{key:"MATEN",desc:"RT per blok, leereffect, nauwkeurigheid"}]},
  BART:{name:"BALLON-RISICOTAAK (BART)",body:"Pomp een ballon op voor geld; elke pomp geeft beloning maar verhoogt het knaprisico. Verzilver wanneer je wilt; knapt hij, dan ben je die ballon kwijt. Het aangepaste gemiddelde aantal pompen meet risicogedrag.",rules:[{key:"POMPEN (F)",desc:"Pomp de ballon op — elke pomp geeft geld en risico"},{key:"VERZILVEREN (J)",desc:"Bewaar het geld van de huidige ballon en ga door"},{key:"KNAP",desc:"Knapt hij vóór het verzilveren, dan is het geld weg"},{key:"AFWEGING",desc:"Meer beloning vergt meer pompen, dus meer risico"},{key:"MATEN",desc:"Aangepaste pompen, totaal verdiend, knappen"}]},
  OSPAN:{name:"OPERATIESPANNE",body:"Wissel het beoordelen van een korte vergelijking (waar/onwaar) af met het onthouden van een letter; herhaal daarna de letters in volgorde. De standaardmaat voor complexe werkgeheugencapaciteit.",rules:[{key:"VERGELIJKING",desc:"Is de som juist? — WAAR (T) / ONWAAR (F)"},{key:"LETTER",desc:"Onthoud na elke vergelijking de getoonde letter"},{key:"HERHALEN",desc:"Klik aan het eind de letters in oorspronkelijke volgorde"},{key:"HOU TEMPO",desc:"Reageer snel — stop niet om te herhalen"},{key:"MATEN",desc:"Gedeeltelijke en absolute score, rekennauwkeurigheid"}]},
  TBIS:{name:"TEMPORELE BISECTIE",body:"Leer een KORTE en een LANGE standaardduur, beoordeel dan of elke flits dichter bij KORT of LANG ligt. Geeft het bisectiepunt en de Weber-ratio; betrekt de CNV.",rules:[{key:"LEER",desc:"Bekijk eerst de KORTE en LANGE standaarden"},{key:"BEOORDEEL",desc:"Was de flits eerder KORT (F) of LANG (J)?"},{key:"GEEN FEEDBACK",desc:"Testpogingen geven geen feedback — vertrouw je waarneming"},{key:"NIET TELLEN",desc:"De duren zijn kort — oordeel op gevoel"},{key:"MATEN",desc:"Bisectiepunt, Weber-ratio, aandeel-lang-curve"}]},

  GNG:{name:"GO / NO-GO",body:"De Go/No-Go-taak meet responsinhibitie — uw vermogen om een dominante actie te onderdrukken. In elke trial verschijnt een stimulus centraal. Reageer snel op Go-stimuli (●) en onderdruk elke reactie op No-Go-stimuli (○).",rules:[{key:"F / SPATIE",desc:"GO — reageer op de doelstimulus"},{key:"J",desc:"NO-GO — onderdruk de reactie"},{key:"● (gevuld)",desc:"GO — reageer zo snel mogelijk"},{key:"○ (open)",desc:"NO-GO — niet reageren"},{key:"TIMEOUT",desc:"Geen reactie binnen 1,5 s telt als onderdrukt"},{key:"VERHOUDING",desc:"70 % Go-trials · 30 % No-Go-trials"}]},
  NBACK:{name:"N-TERUG (1-terug)",body:"De N-terug-taak meet werkgeheugen-updating. In elke trial verschijnt een letter. Bepaal of de huidige letter overeenkomt met die exact één trial geleden.",rules:[{key:"F / SPATIE",desc:"MATCH — letter komt overeen met N trials terug"},{key:"J",desc:"GEEN MATCH — letter komt niet overeen"},{key:"EERSTE TRIAL",desc:"Geen correct antwoord mogelijk — alleen observeren"},{key:"FREQUENTIE",desc:"~35 % van de trials zijn matches"}]},
  SPATIAL:{name:"RUIMTELIJKE AANDACHT",body:"Meet visuoruimtelijke verwerking en selectieve aandacht. In elke trial wordt één cel van een 3×3-rooster gemarkeerd. Klik zo snel mogelijk op de gemarkeerde cel.",rules:[{key:"KLIK",desc:"Klik zo snel mogelijk op de gemarkeerde cel"},{key:"ACCURATESSE",desc:"Klikken op een verkeerde cel telt als fout"},{key:"TIMEOUT",desc:"Geen reactie binnen 1,5 s wordt geregistreerd als gemist"}]},
  POSNER:{name:"POSNER-PARADIGMA",body:"Meet bedekte ruimtelijke aandacht. Een cue richt de aandacht op de waarschijnlijke doellocatie. Snellere RT op valide trials onthult het aandachtsvoordeel.",rules:[{key:"SPATIE / F",desc:"Reageer wanneer het doel verschijnt"},{key:"ENDOGEEN",desc:"Centrale pijl — vrijwillige verschuiving van aandacht"},{key:"EXOGEEN",desc:"Perifere flits — automatische reflexmatige vangst"},{key:"VOORDEEL",desc:"Voordeel = RT invalide − RT valide"}]},
  VRT:{name:"VISUELE HERKENNING",body:"Meet visueel episodisch geheugen. Abstracte geometrische patronen worden ter studie aangeboden. Na een retentie-interval verschijnen patroonparen — een bestudeerd en een nieuw. Identificeer welke u eerder zag.",rules:[{key:"STUDIE",desc:"Bekijk de patroonmatrix — 4 s per set"},{key:"TEST",desc:"Twee patronen verschijnen — klik op het bestudeerde"},{key:"METRIEKEN",desc:"Hits, valse alarmen, d′ en RT"}]},
  CSR:{name:"CONTRASTOMKERING",body:"Een schaakbord keert continu zijn polariteit om. De meeste omkeringen zijn standaard. Een kleine fractie zijn DOEL-omkeringen — een rotatie van 45° gedurende één cyclus. Reageer zodra u de verandering detecteert.",rules:[{key:"SPATIE",desc:"Druk wanneer u een DOEL-omkering (geroteerd) detecteert"},{key:"OBSERVEER",desc:"Het bord keert continu om — behoud fixatie"},{key:"STANDAARD",desc:"De meeste omkeringen zijn standaard — NIET reageren"},{key:"DOEL",desc:"Occasionele 45°-rotatie — druk direct op SPATIE"}]},
  P300:{name:"AUDITIEVE P300",body:"Het auditieve oddball-paradigma roept de P300-component op. Een stroom van frequente standaardtonen wordt aangeboden met zeldzame oddball-tonen ertussen. Detecteer de oddball-toon en druk op SPATIE. Standaard: 1000 Hz; oddball: 2000 Hz. Kans: 20 %.",rules:[{key:"SPATIE",desc:"Druk op de ZELDZAME (hoge) toon"},{key:"STANDAARD",desc:"1000 Hz (frequent) — NIET reageren"},{key:"ODDBALL",desc:"2000 Hz (zeldzaam, 20 %) — druk op SPATIE"},{key:"KOPTELEFOON",desc:"Gebruik een koptelefoon voor betere discriminatie"}]},
  STB:{name:"STERNBERG-GEHEUGEN",body:"Meet zoeksnelheid in verbaal werkgeheugen. Een set letters wordt ÉÉN VOOR ÉÉN aangeboden — 1 s per letter. Na een retentie-interval verschijnt een probe-letter. Antwoord JA als deze in de set zat.",rules:[{key:"F / SPATIE",desc:"JA — probe-letter ZAT in de set"},{key:"J",desc:"NEE — probe-letter zat NIET in de set"},{key:"STUDIE",desc:"Letters verschijnen ÉÉN VOOR ÉÉN — 1 s per stuk"},{key:"SNELHEID",desc:"Reageer zo snel en accuraat mogelijk"}]},
  WCST:{name:"WISCONSIN KAART-SORTERING",body:"Klassieke test van cognitieve flexibiliteit en executieve functie. Sorteer kaarten volgens een verborgen regel (kleur / vorm / aantal) op basis van feedback. De regel verandert zonder waarschuwing. Perseveratiefouten worden gescoord.",rules:[{key:"1 / 2 / 3 / 4",desc:"Selecteer de doelkaart waarop de huidige kaart past"},{key:"FEEDBACK",desc:"CORRECT / FOUT verschijnt na elke trial"},{key:"REGEL",desc:"Kleur, vorm of aantal — leid af waarop te sorteren"},{key:"WISSEL",desc:"Na 10 correct op rij verandert de regel stil"},{key:"PERSEVERATIE",desc:"Doorgaan met de oude regel = perseveratiefout"}]},
  RECALL:{name:"WOORDHERKENNING",body:"Meet episodisch geheugen via herkenning (makkelijker te beantwoorden dan vrije reproductie). Bestudeer een lijst gebruikelijke woorden, één voor één. Na korte rekenkundige afleiding worden woorden één voor één getoond: sommige stonden op de lijst (OUD) en andere zijn nieuw (NIEUW). Beslis of u elk woord tijdens het studeren zag. Treffers, valse alarmen en d′ worden geregistreerd.",rules:[{key:"F = OUD",desc:"Druk F als het woord OP de lijst stond"},{key:"J = NIEUW",desc:"Druk J als het woord NIET op de lijst stond"},{key:"BESTUDEER",desc:"Lees elk woord aandachtig — 2 s elk"},{key:"AFLEIDING",desc:"30 s rekenkunde om werkgeheugen te wissen"}]},
  TMT:{name:"TRAIL MAKING TEST",body:"Deel A: verbind cijfers 1–25 in volgorde zo snel mogelijk. Deel B: wissel cijfers en letters af (1-A-2-B-3-C…). De B/A-verhouding indexeert set-shifting — een kerncomponent van executieve functie.",rules:[{key:"KLIK",desc:"Klik knooppunten in volgorde — niet overslaan"},{key:"DEEL A",desc:"Verbind 1–2–3–…–25 — psychomotorische snelheid"},{key:"DEEL B",desc:"Wissel 1–A–2–B–3–C… — set-shifting"},{key:"FOUTEN",desc:"Verkeerde klik = probeer opnieuw tot correct"}]},
  DSC:{name:"CIJFER-SYMBOOL-CODERING",body:"WAIS-IV subtest — goudstandaard voor verwerkingssnelheid. Bovenaan koppelt een sleutel 1–9 aan unieke symbolen. Voer het symbool onder elk cijfer zo snel mogelijk in gedurende 90 seconden.",rules:[{key:"TYPEN",desc:"Voer het symbool in dat bij elk cijfer hoort"},{key:"SLEUTEL",desc:"Sleutel blijft de hele test zichtbaar"},{key:"SNELHEID",desc:"90 seconden — verwerk er zoveel mogelijk"},{key:"SCORE",desc:"Aantal correcte paren in 90 s"}]},
  PNT:{name:"BEELDBENOEMEN",body:"Alledaagse voorwerpen verschijnen; benoem ze hardop zo snel mogelijk. Spraakinvoer registreert antwoorden en reactietijden. Meet lexicale toegang en benoemsnelheid — verstoord bij afasie en de ziekte van Alzheimer.",rules:[{key:"MICROFOON",desc:"Schakel microfoon in — spraakinvoer vereist"},{key:"SPREEK",desc:"Spreek de naam van het voorwerp hardop uit"},{key:"SNELHEID",desc:"Reageer zo snel mogelijk — RT wordt geanalyseerd"},{key:"TIMEOUT",desc:"Geen antwoord binnen 4 s wordt als gemist genoteerd"}]},
  MRT:{name:"MENTALE ROTATIE",body:"Klassieke Shepard-Metzler-taak. Twee 3D-figuren verschijnen in verschillende oriëntaties. Beslis of het dezelfde vorm betreft (in de ruimte geroteerd) of spiegelbeelden. RT neemt lineair toe met de rotatiehoek.",rules:[{key:"F",desc:"GELIJK — figuren zijn identiek na rotatie"},{key:"J",desc:"SPIEGEL — figuren zijn spiegelbeelden"},{key:"ROTEER",desc:"Roteer mentaal één figuur om met de andere te matchen"},{key:"HOEK",desc:"RT stijgt lineair met angulair verschil"}]},
  FLANKER:{name:"ERIKSEN-FLANKER",body:"Klassieke maat van visuele selectieve aandacht en conflictcontrole. Reageer op de richting van de centrale pijl en negeer de flankerende pijlen. Incongruente trials (flankers wijzen tegenover) vertragen RT — het Flanker-effect.",rules:[{key:"F",desc:"Centrale pijl wijst NAAR LINKS"},{key:"J",desc:"Centrale pijl wijst NAAR RECHTS"},{key:"CONGRUENT",desc:"Alle pijlen dezelfde kant — snelle RT"},{key:"INCONGRUENT",desc:"Flankers tegenover — conflict vertraagt RT"},{key:"EFFECT",desc:"Conflictkost = RT incongruent − RT congruent"}]},
  STOP:{name:"STOPSIGNAAL",body:"Meet responsinhibitie via een trapsgewijze procedure. Reageer op pijlen. Op een klein deel van de trials wordt een stopsignaal (toon) afgespeeld — probeer de respons te onderdrukken. SSRT (stop-signal reaction time) indexeert de snelheid van inhibitie.",rules:[{key:"F / J",desc:"Reageer op de pijlrichting"},{key:"STOPSIGNAAL",desc:"Bij een toon — NIET drukken"},{key:"TRAP",desc:"SSD verhoogt na geslaagde inhibitie, verlaagt na falen"},{key:"SSRT",desc:"Gemiddelde Go-RT − finale SSD = SSRT"}]},
  STROOP:{name:"KLEUR-WOORD-STROOP",body:"Klassieke test van executieve controle. Kleurwoorden (ROOD, BLAUW, GROEN) verschijnen in gekleurde inkt. Reageer op de INKTKLEUR en negeer het woord. Incongruente trials (het woord “ROOD” in groene inkt) vertragen RT — Stroop-interferentie.",rules:[{key:"R",desc:"INKT IS ROOD"},{key:"G",desc:"INKT IS GROEN"},{key:"B",desc:"INKT IS BLAUW"},{key:"NEGEER",desc:"Reageer op de KLEUR — lees het woord niet"},{key:"EFFECT",desc:"Interferentie = RT incongruent − RT congruent"}]},
  DST:{name:"CIJFERREEKS (WAIS-IV)",body:"Klassieke maat van verbaal werkgeheugen. Cijfers worden één voor één aangeboden. Voorwaarts: herhaal in dezelfde volgorde. Achterwaarts: herhaal in omgekeerde volgorde. De maximale lengte van een succesvol herhaalde reeks = uw span.",rules:[{key:"LUISTER",desc:"Cijfers worden aangeboden — 1 s per cijfer"},{key:"VOORWAARTS",desc:"Voer in dezelfde volgorde in"},{key:"ACHTERWAARTS",desc:"Voer in OMGEKEERDE volgorde in"},{key:"TRAP",desc:"Lengte stijgt na 2 correcte op rij"},{key:"SPAN",desc:"Langste correct herhaalde reeks"}]},
  FTT:{name:"VINGERTAPPEN",body:"Halstead-Reitan-tappen. Tik zo snel mogelijk op de spatiebalk gedurende 10 s. Vijf blokken per hand (dominant → niet-dominant → alternerend). Meet motorische snelheid, regulariteit en bimanuale coördinatie.",rules:[{key:"SPATIE",desc:"Tik zo snel mogelijk — gedurende 10 s"},{key:"5 BLOKKEN",desc:"5 trials van 10 s per conditie"},{key:"DOMINANT",desc:"Begin met de dominante hand"},{key:"NIET-DOM.",desc:"Vervolgens niet-dominante hand"},{key:"GEMIDDELDE",desc:"Gemiddelde tikken per blok — hoofdmaat"}]},
  N400:{name:"SEMANTISCHE PRIMING N400",body:"De N400-component indexeert semantische verwerking. Zinnen worden woord-voor-woord aangeboden en eindigen ofwel met een verwacht (CONGRUENT) of een onverwacht (INCONGRUENT) slotwoord. Beslis of het slotwoord zinvol is. Incongruente zinnen roepen een grotere N400 op in centro-pariëtale gebieden ~400 ms.",rules:[{key:"F / SPATIE",desc:"ZINVOL — zin is congruent"},{key:"J",desc:"NIET ZINVOL — slotwoord is onverwacht"},{key:"N400",desc:"Centro-pariëtale negatieve piek ~400 ms"},{key:"GROTER",desc:"N400 is groter voor semantische schendingen"}]},
  MMN:{name:"MISMATCH-NEGATIVITEIT (MMN)",body:"Passief auditief oddball-paradigma. Tonen van 1000 Hz (standaard, 85 %) en 1200 Hz (deviant, 15 %) worden via koptelefoon aangeboden. MMN is een automatische pre-aandacht-respons ~150–250 ms boven fronto-centrale gebieden. Aandacht is niet vereist.",rules:[{key:"LUISTER",desc:"Luister passief via koptelefoon"},{key:"STANDAARD",desc:"1000 Hz (85 %)"},{key:"DEVIANT",desc:"1200 Hz (15 %) — verschilt in frequentie"},{key:"MMN",desc:"Fronto-centraal negatief ~150–250 ms"},{key:"PRE-AANDACHT",desc:"Geen actieve taak vereist — kijk een stille film"}]},
  P600:{name:"SYNTACTISCHE P600",body:"De P600-component indexeert syntactische verwerking. Zinnen met grammaticale schendingen (bijv. onjuiste getalsovereenkomst) of zonder worden woord-voor-woord aangeboden. Beslis of de zin grammaticaal correct is. Schendingen roepen een positieve verschuiving op ~500–800 ms in pariëtale gebieden.",rules:[{key:"F / SPATIE",desc:"CORRECT — zin is grammaticaal"},{key:"J",desc:"FOUT — zin bevat een syntactische fout"},{key:"P600",desc:"Pariëtale positieve piek 500–800 ms"},{key:"VERSCHIL",desc:"P600 is te onderscheiden van N400 (semantiek)"}]},
  ERN:{name:"FOUT-GERELATEERDE NEGATIVITEIT",body:"Een snelle forced-choice-taak induceert fouten. Pijlen verschijnen centraal; druk F voor links, J voor rechts. Een snelheidsregime (~400 ms per respons) garandeert fouten. ERN is een fronto-centrale negativiteit 0–100 ms NA een foutieve respons, gegenereerd door de anterieure cingulaire cortex.",rules:[{key:"F",desc:"Pijl naar links"},{key:"J",desc:"Pijl naar rechts"},{key:"SNELHEID",desc:"Reageer zeer snel — fouten zijn gewenst"},{key:"ERN",desc:"Fronto-centraal negatief 0–100 ms na fout"},{key:"BRON",desc:"Gegenereerd door de anterieure cingulaire cortex (ACC)"}]},
  CNV:{name:"CONTINGENTE NEGATIEVE VARIATIE",body:"S1 (waarschuwing) → S2 (imperatief). Reageer op S2 zo snel mogelijk. Een trage negatieve verschuiving tussen S1 en S2 weerspiegelt motorvoorbereiding en temporele verwachting. Frontale CNV wordt gegenereerd door anterieure cingulaire en supplementaire motorische cortex.",rules:[{key:"S1",desc:"Auditieve of visuele waarschuwingscue"},{key:"S2",desc:"Imperatieve stimulus na 1500 ms"},{key:"SPATIE",desc:"Reageer zo snel mogelijk op S2"},{key:"CNV",desc:"Trage negatieve verschuiving tussen S1 en S2 fronto-centraal"},{key:"BRON",desc:"Anterieure cingulaire en SMA"}]}
};
const PARADIGMS_AF={
  PRL:{name:"PROBABILISTIESE OMKEERLEER",body:"Kies tussen twee stimuli met 80/20-beloning; die beter een keer sonder waarskuwing om. Meet beloningsgebaseerde buigsaamheid en terugvoermonitering (FRN/RewP).",rules:[{key:"F / J",desc:"Kies die LINKER (F) of REGTER (J) stimulus"},{key:"80 / 20",desc:"Die goeie word ~80% beloon, die slegte ~20%"},{key:"OMKERING",desc:"Goeie en slegte stimulus ruil sonder waarskuwing"},{key:"WEN-BLY",desc:"Een enkele verlies beteken nie 'n verkeerde keuse nie"},{key:"METINGS",desc:"Akkuraatheid, omkerings, perseveratiewe foute, wen-bly/verloor-ruil"}]},
  DD:{name:"VERTRAGINGSAFSLAG",body:"Herhaalde keuses tussen 'n kleiner-vroeër en 'n groter-later ($1000) beloning; 'n trap vind die onverskilligheidspunt per vertraging en gee die hiperboliese k en area onder die kurwe. Meet impulsiwiteit.",rules:[{key:"F / J",desc:"Kies die LINKER (F) of REGTER (J) opsie"},{key:"NOU vs LATER",desc:"'n Kleiner bedrag nou of $1000 ná 'n vertraging"},{key:"GEEN FOUT ANTWOORD",desc:"Kies die opsie wat jy werklik verkies"},{key:"VERTRAGINGS",desc:"Die vertraging groei van dae tot jare"},{key:"METINGS",desc:"Hiperboliese k, ln(k), area onder kurwe, % onmiddellik"}]},
  SRTT:{name:"SERIËLE REAKSIETYD",body:"Druk die sleutel van die verligte blokkie; die posisies volg in die geheim 'n herhalende reeks, dus versnel reaksies soos dit geleer word. 'n Lukrake blok openbaar die leer.",rules:[{key:"D F J K",desc:"Elke blokkie het 'n sleutel — druk die verligte een"},{key:"WEES VINNIG",desc:"Reageer vinnig en akkuraat"},{key:"VERSTEEKTE REEKS",desc:"Die posisies volg 'n herhalende patroon"},{key:"LUKRAKE BLOK",desc:"Een blok is lukraak — die RT styg as jy geleer het"},{key:"METINGS",desc:"RT per blok, leereffek, akkuraatheid"}]},
  BART:{name:"BALLON-RISIKOTAAK (BART)",body:"Pomp 'n ballon op vir geld; elke pomp gee beloning maar verhoog die bars-risiko. Trek enige tyd in; bars dit, verloor jy daardie ballon. Die aangepaste gemiddelde pompe meet risikogedrag.",rules:[{key:"POMP (F)",desc:"Pomp die ballon op — elke pomp gee geld en risiko"},{key:"TREK IN (J)",desc:"Stoor die huidige ballon se geld en gaan voort"},{key:"BARS",desc:"Bars dit voor jy intrek, is die geld weg"},{key:"AFRUIL",desc:"Meer beloning verg meer pompe, dus meer risiko"},{key:"METINGS",desc:"Aangepaste pompe, totaal verdien, barstings"}]},
  OSPAN:{name:"OPERASIESPAN",body:"Wissel die beoordeling van 'n kort vergelyking (waar/onwaar) met die onthou van 'n letter af; onthou dan die letters in volgorde. Die standaardmaat van komplekse werkgeheuekapasiteit.",rules:[{key:"VERGELYKING",desc:"Is die som korrek? — WAAR (T) / ONWAAR (F)"},{key:"LETTER",desc:"Onthou ná elke vergelyking die gewysde letter"},{key:"ONTHOU",desc:"Klik aan die einde die letters in oorspronklike volgorde"},{key:"HOU TEMPO",desc:"Reageer vinnig — moenie stop om te hersien nie"},{key:"METINGS",desc:"Gedeeltelike en absolute telling, rekenakkuraatheid"}]},
  TBIS:{name:"TEMPORALE BISEKSIE",body:"Leer 'n KORT en 'n LANG standaardduur, beoordeel dan of elke flits nader aan KORT of LANG is. Gee die biseksiepunt en die Weber-verhouding; betrek die CNV.",rules:[{key:"LEER",desc:"Kyk eers na die KORT en LANG standaarde"},{key:"BEOORDEEL",desc:"Was die flits eerder KORT (F) of LANG (J)?"},{key:"GEEN TERUGVOER",desc:"Toetsproewe gee geen terugvoer — vertrou jou waarneming"},{key:"MOENIE TEL NIE",desc:"Die duurtes is kort — oordeel op gevoel"},{key:"METINGS",desc:"Biseksiepunt, Weber-verhouding, aandeel-lank-kurwe"}]},

  GNG:{name:"GAAN / MOENIE GAAN",body:"Die Gaan/Moenie-gaan-taak meet responsinhibisie — jou vermoë om 'n oorheersende aksie te onderdruk. In elke proef verskyn 'n stimulus in die middel. Reageer vinnig op Gaan-stimuli (●) en onderdruk enige reaksie op Moenie-gaan-stimuli (○).",rules:[{key:"F / SPASIE",desc:"GAAN — reageer op die teikenstimulus"},{key:"J",desc:"MOENIE GAAN — onderdruk die reaksie"},{key:"● (gevul)",desc:"GAAN — reageer so vinnig moontlik"},{key:"○ (oop)",desc:"MOENIE GAAN — moenie reageer nie"},{key:"TYDUITLOOP",desc:"Geen reaksie binne 1,5 s tel as onderdruk"},{key:"VERHOUDING",desc:"70 % Gaan-proewe · 30 % Moenie-gaan-proewe"}]},
  NBACK:{name:"N-TERUG (1-terug)",body:"Die N-terug-taak meet werkende geheue-opdatering. In elke proef verskyn 'n letter. Besluit of die huidige letter ooreenstem met dié wat presies een proef gelede aangebied is.",rules:[{key:"F / SPASIE",desc:"PAS — letter pas N proewe terug"},{key:"J",desc:"GEEN PAS — letter pas nie"},{key:"EERSTE PROEF",desc:"Geen korrekte antwoord moontlik — net waarneem"},{key:"FREKWENSIE",desc:"~35 % van proewe is passe"}]},
  SPATIAL:{name:"RUIMTELIKE AANDAG",body:"Meet visuoruimtelike verwerking en selektiewe aandag. In elke proef word een sel van 'n 3×3-rooster uitgelig. Klik so vinnig moontlik op die uitgeligte sel.",rules:[{key:"KLIK",desc:"Klik so vinnig moontlik op die uitgeligte sel"},{key:"AKKURAATHEID",desc:"Op die verkeerde sel klik tel as 'n fout"},{key:"TYDUITLOOP",desc:"Geen reaksie binne 1,5 s word as gemis aangeteken"}]},
  POSNER:{name:"POSNER-PARADIGMA",body:"Meet bedekte ruimtelike aandag. 'n Wenk rig aandag op die waarskynlike teikenligging. Vinniger RT op geldige proewe onthul die aandagsvoordeel.",rules:[{key:"SPASIE / F",desc:"Reageer wanneer die teiken verskyn"},{key:"ENDOGEEN",desc:"Sentrale pyl — vrywillige verskuiwing van aandag"},{key:"EKSOGEEN",desc:"Periferale flits — outomatiese refleksiewe vang"},{key:"VOORDEEL",desc:"Voordeel = RT ongeldig − RT geldig"}]},
  VRT:{name:"VISUELE HERKENNING",body:"Meet visuele episodiese geheue. Abstrakte geometriese patrone word vir studie aangebied. Na 'n retensie-interval verskyn pare patrone — een bestudeerd en een nuut. Identifiseer die een wat jy gesien het.",rules:[{key:"STUDIE",desc:"Bestudeer die patroonmatriks — 4 s per stel"},{key:"TOETS",desc:"Twee patrone verskyn — klik op die bestudeerde een"},{key:"METRIEKE",desc:"Treffers, vals alarms, d′ en RT"}]},
  CSR:{name:"KONTRASOMKERING",body:"'n Skaakbord keer voortdurend sy polariteit om. Die meeste omkerings is standaard. 'n Klein fraksie is TEIKEN-omkerings — 'n rotasie van 45° vir een siklus. Reageer sodra jy die verandering bespeur.",rules:[{key:"SPASIE",desc:"Druk wanneer jy 'n TEIKEN-omkering (gedraai) bespeur"},{key:"WAARNEEM",desc:"Die bord keer voortdurend om — handhaaf fiksasie"},{key:"STANDAARD",desc:"Die meeste omkerings is standaard — MOENIE reageer nie"},{key:"TEIKEN",desc:"Geleentlike 45°-rotasie — druk SPASIE onmiddellik"}]},
  P300:{name:"OUDITIEWE P300",body:"Die ouditiewe oddball-paradigma roep die P300-komponent op. 'n Stroom van gereelde standaardtone word aangebied met skaars oddball-tone tussenin. Bespeur die oddball-toon en druk SPASIE. Standaard: 1000 Hz; oddball: 2000 Hz. Waarskynlikheid: 20 %.",rules:[{key:"SPASIE",desc:"Druk op die SKAARS (hoë) toon"},{key:"STANDAARD",desc:"1000 Hz (gereeld) — MOENIE reageer nie"},{key:"ODDBALL",desc:"2000 Hz (skaars, 20 %) — druk SPASIE"},{key:"KOPFOON",desc:"Gebruik 'n kopfoon vir beter diskriminasie"}]},
  STB:{name:"STERNBERG-GEHEUE",body:"Meet soekspoed in verbale werkende geheue. 'n Stel letters word EEN VIR EEN aangebied — 1 s elk. Na 'n retensie-interval verskyn 'n probe-letter. Antwoord JA as dit in die stel was.",rules:[{key:"F / SPASIE",desc:"JA — probe-letter WAS in die stel"},{key:"J",desc:"NEE — probe-letter was NIE in die stel nie"},{key:"STUDIE",desc:"Letters verskyn EEN VIR EEN — 1 s elk"},{key:"SPOED",desc:"Reageer so vinnig en akkuraat moontlik"}]},
  WCST:{name:"WISCONSIN KAART-SORTEER",body:"Klassieke toets van kognitiewe buigsaamheid en uitvoerende funksie. Sorteer kaarte volgens 'n verborge reël (kleur / vorm / getal) gebaseer op terugvoer. Die reël verander sonder waarskuwing. Perseverasiefoute word getel.",rules:[{key:"1 / 2 / 3 / 4",desc:"Kies die teikenkaart waarop die huidige kaart pas"},{key:"TERUGVOER",desc:"REG / VERKEERD verskyn na elke proef"},{key:"REËL",desc:"Kleur, vorm of getal — lei af waarvolgens te sorteer"},{key:"WISSEL",desc:"Na 10 reg agtereenvolgens verander die reël stilweg"},{key:"PERSEVERASIE",desc:"Voortgaan met die ou reël = perseverasiefout"}]},
  RECALL:{name:"WOORDHERKENNING",body:"Meet episodiese geheue deur herkenning (makliker as vrye oproeping). Bestudeer 'n lys gewone woorde, een vir een. Na kort rekenkundige afleiding word woorde een vir een gewys: sommige was op die lys (OUD) en ander is nuut (NUUT). Besluit of jy elke woord tydens studie gesien het. Treffers, vals alarms en d′ word aangeteken.",rules:[{key:"F = OUD",desc:"Druk F as die woord OP die lys was"},{key:"J = NUUT",desc:"Druk J as die woord NIE op die lys was nie"},{key:"STUDEER",desc:"Lees elke woord aandagtig — 2 s elk"},{key:"AFLEIDING",desc:"30 s rekenkunde om werkende geheue skoon te maak"}]},
  TMT:{name:"SPOORMAAK-TOETS",body:"Deel A: verbind getalle 1–25 in volgorde so vinnig moontlik. Deel B: wissel getalle en letters af (1-A-2-B-3-C…). Die B/A-verhouding indekseer stel-skakeling — 'n kernkomponent van uitvoerende funksie.",rules:[{key:"KLIK",desc:"Klik nodes in volgorde — moenie oorslaan nie"},{key:"DEEL A",desc:"Verbind 1–2–3–…–25 — psigomotoriese spoed"},{key:"DEEL B",desc:"Wissel 1–A–2–B–3–C… — stel-skakeling"},{key:"FOUTE",desc:"Verkeerde klik = probeer weer tot reg"}]},
  DSC:{name:"SYFER-SIMBOOL-KODERING",body:"WAIS-IV-subtoets — goue standaard vir verwerkingsspoed. Bo koppel 'n sleutel 1–9 aan unieke simbole. Voer die simbool onder elke syfer in so vinnig moontlik vir 90 sekondes.",rules:[{key:"TIK",desc:"Voer die simbool in wat met elke syfer ooreenstem"},{key:"SLEUTEL",desc:"Sleutel bly die hele toets sigbaar"},{key:"SPOED",desc:"90 sekondes — verwerk soveel as moontlik"},{key:"PUNT",desc:"Aantal korrekte pare in 90 s"}]},
  PNT:{name:"PRENTBENAAMD",body:"Alledaagse voorwerpe verskyn; benoem hulle hardop so vinnig moontlik. Spraakinvoer registreer antwoorde en reaksietye. Meet leksikale toegang en benoemingsspoed — versteur by afasie en die siekte van Alzheimer.",rules:[{key:"MIKROFOON",desc:"Skakel mikrofoon aan — spraakinvoer benodig"},{key:"PRAAT",desc:"Spreek die naam van die voorwerp hardop uit"},{key:"SPOED",desc:"Reageer so vinnig moontlik — RT word ontleed"},{key:"TYDUITLOOP",desc:"Geen antwoord binne 4 s word as gemis aangeteken"}]},
  MRT:{name:"GEES-ROTASIE",body:"Klassieke Shepard-Metzler-taak. Twee 3D-figure verskyn in verskillende oriëntasies. Besluit of dit dieselfde vorm is (in die ruimte gedraai) of spieëlbeelde. RT neem lineêr toe met die rotasiehoek.",rules:[{key:"F",desc:"SELFDE — figure is identies ná rotasie"},{key:"J",desc:"SPIEËL — figure is spieëlbeelde"},{key:"DRAAI",desc:"Draai mentaal een figuur om met die ander te pas"},{key:"HOEK",desc:"RT styg lineêr met angulêre verskil"}]},
  FLANKER:{name:"ERIKSEN-FLANKER",body:"Klassieke maatstaf van visuele selektiewe aandag en konflikbeheer. Reageer op die rigting van die sentrale pyl en ignoreer die flankerende pyle. Inkongruente proewe (flankers wys teenoor) vertraag RT — die Flanker-effek.",rules:[{key:"F",desc:"Sentrale pyl wys NA LINKS"},{key:"J",desc:"Sentrale pyl wys NA REGS"},{key:"KONGRUENT",desc:"Alle pyle dieselfde kant — vinnige RT"},{key:"INKONGRUENT",desc:"Flankers teenoor — konflik vertraag RT"},{key:"EFFEK",desc:"Konflikkoste = RT inkongruent − RT kongruent"}]},
  STOP:{name:"STOPSEIN",body:"Meet responsinhibisie via 'n trappies-prosedure. Reageer op pyle. Op 'n klein deel van die proewe word 'n stopsein (toon) gespeel — probeer die respons onderdruk. SSRT (stopsein-reaksietyd) indekseer die spoed van inhibisie.",rules:[{key:"F / J",desc:"Reageer op die pylrigting"},{key:"STOPSEIN",desc:"Met 'n toon — MOENIE druk nie"},{key:"TRAP",desc:"SSD styg ná suksesvolle inhibisie, daal ná mislukking"},{key:"SSRT",desc:"Gemiddelde Gaan-RT − finale SSD = SSRT"}]},
  STROOP:{name:"KLEUR-WOORD-STROOP",body:"Klassieke toets van uitvoerende beheer. Kleurwoorde (ROOI, BLOU, GROEN) verskyn in gekleurde ink. Reageer op die INKKLEUR en ignoreer die woord. Inkongruente proewe (die woord “ROOI” in groen ink) vertraag RT — Stroop-interferensie.",rules:[{key:"R",desc:"INK IS ROOI"},{key:"G",desc:"INK IS GROEN"},{key:"B",desc:"INK IS BLOU"},{key:"IGNOREER",desc:"Reageer op die KLEUR — moenie die woord lees nie"},{key:"EFFEK",desc:"Interferensie = RT inkongruent − RT kongruent"}]},
  DST:{name:"SYFERSPAN (WAIS-IV)",body:"Klassieke maatstaf van verbale werkende geheue. Syfers word een vir een aangebied. Vorentoe: herhaal in dieselfde volgorde. Agtertoe: herhaal in omgekeerde volgorde. Die maksimale lengte van 'n suksesvol herhaalde reeks = jou span.",rules:[{key:"LUISTER",desc:"Syfers word aangebied — 1 s elk"},{key:"VORENTOE",desc:"Voer in dieselfde volgorde in"},{key:"AGTERTOE",desc:"Voer in OMGEKEERDE volgorde in"},{key:"TRAP",desc:"Lengte styg ná 2 reg agtereenvolgens"},{key:"SPAN",desc:"Langste reg herhaalde reeks"}]},
  FTT:{name:"VINGER-TIK",body:"Halstead-Reitan-tik. Tik so vinnig moontlik op die spasiebalk vir 10 s. Vyf blokke per hand (dominant → nie-dominant → afwisselend). Meet motoriese spoed, regelmatigheid en tweehandige koördinasie.",rules:[{key:"SPASIE",desc:"Tik so vinnig moontlik — die hele 10 s"},{key:"5 BLOKKE",desc:"5 proewe van 10 s per toestand"},{key:"DOMINANT",desc:"Begin met die dominante hand"},{key:"NIE-DOM.",desc:"Daarna die nie-dominante hand"},{key:"GEMIDDELD",desc:"Gemiddelde tikke per blok — hoofmaatstaf"}]},
  N400:{name:"SEMANTIESE PRIMING N400",body:"Die N400-komponent indekseer semantiese verwerking. Sinne word woord-vir-woord aangebied en eindig óf met 'n verwagte (KONGRUENTE) óf 'n onverwagte (INKONGRUENTE) slotwoord. Besluit of die slotwoord sin maak. Inkongruente sinne roep 'n groter N400 op in sentro-pariëtale gebiede ~400 ms.",rules:[{key:"F / SPASIE",desc:"MAAK SIN — sin is kongruent"},{key:"J",desc:"MAAK NIE SIN NIE — slotwoord is onverwags"},{key:"N400",desc:"Sentro-pariëtale negatiewe piek ~400 ms"},{key:"GROTER",desc:"N400 is groter vir semantiese skendings"}]},
  MMN:{name:"WANPAS-NEGATIWITEIT (MMN)",body:"Passiewe ouditiewe oddball-paradigma. Tone van 1000 Hz (standaard, 85 %) en 1200 Hz (afwykend, 15 %) word via kopfoon aangebied. MMN is 'n outomatiese voor-aandag-respons ~150–250 ms oor fronto-sentrale gebiede. Aandag is nie nodig nie.",rules:[{key:"LUISTER",desc:"Luister passief via kopfoon"},{key:"STANDAARD",desc:"1000 Hz (85 %)"},{key:"AFWYKEND",desc:"1200 Hz (15 %) — verskil in frekwensie"},{key:"MMN",desc:"Fronto-sentraal negatief ~150–250 ms"},{key:"VOOR-AANDAG",desc:"Geen aktiewe taak benodig — kyk 'n stil film"}]},
  P600:{name:"SINTAKTIESE P600",body:"Die P600-komponent indekseer sintaktiese verwerking. Sinne met grammatiese skendings (bv. verkeerde getalsooreenstemming) of sonder, word woord-vir-woord aangebied. Besluit of die sin grammaties korrek is. Skendings roep 'n positiewe verskuiwing op ~500–800 ms in pariëtale gebiede.",rules:[{key:"F / SPASIE",desc:"REG — sin is grammaties"},{key:"J",desc:"FOUT — sin bevat 'n sintaktiese fout"},{key:"P600",desc:"Pariëtale positiewe piek 500–800 ms"},{key:"VERSKIL",desc:"P600 is onderskeibaar van N400 (semantiek)"}]},
  ERN:{name:"FOUT-VERWANTE NEGATIWITEIT",body:"'n Vinnige forced-choice-taak veroorsaak foute. Pyle verskyn in die middel; druk F vir links, J vir regs. 'n Spoedregime (~400 ms per respons) waarborg foute. ERN is 'n fronto-sentrale negatiwiteit 0–100 ms NÁ 'n foutiewe respons, gegenereer deur die anterieure singulêre korteks.",rules:[{key:"F",desc:"Pyl na links"},{key:"J",desc:"Pyl na regs"},{key:"SPOED",desc:"Reageer baie vinnig — foute is gewens"},{key:"ERN",desc:"Fronto-sentraal negatief 0–100 ms ná fout"},{key:"BRON",desc:"Gegenereer deur die anterieure singulêre korteks (ACC)"}]},
  CNV:{name:"KONTINGENTE NEGATIEWE VARIASIE",body:"S1 (waarskuwing) → S2 (imperatief). Reageer op S2 so vinnig moontlik. 'n Stadige negatiewe verskuiwing tussen S1 en S2 weerspieël motorvoorbereiding en temporele verwagting. Frontale CNV word gegenereer deur die anterieure singulêre en supplementêre motoriese korteks.",rules:[{key:"S1",desc:"Ouditiewe of visuele waarskuwingswenk"},{key:"S2",desc:"Imperatiewe stimulus ná 1500 ms"},{key:"SPASIE",desc:"Reageer so vinnig moontlik op S2"},{key:"CNV",desc:"Stadige negatiewe verskuiwing tussen S1 en S2 fronto-sentraal"},{key:"BRON",desc:"Anterieure singulêre en SMA"}]}
};
const PARADIGMS_FI={
  PRL:{name:"TODENNÄKÖISYYSPOHJAINEN KÄÄNTEISOPPIMINEN",body:"Valitse kahdesta ärsykkeestä 80/20-palkkiolla; parempi vaihtuu ilman varoitusta. Mittaa palkkiopohjaista joustavuutta ja palautteen seurantaa (FRN/RewP).",rules:[{key:"F / J",desc:"Valitse VASEN (F) tai OIKEA (J) ärsyke"},{key:"80 / 20",desc:"Hyvä palkitaan ~80%, huono ~20%"},{key:"KÄÄNNÖS",desc:"Hyvä ja huono ärsyke vaihtuvat ilman varoitusta"},{key:"VOITA-PYSY",desc:"Yksi tappio ei tarkoita väärää valintaa"},{key:"MITTARIT",desc:"Tarkkuus, käännökset, perseveraatiovirheet, voita-pysy/häviä-vaihda"}]},
  DD:{name:"VIIVÄSTYSDISKONTTAUS",body:"Toistuvat valinnat pienemmän-aiemman ja suuremman-myöhemmän ($1000) palkkion välillä; porras löytää välinpitämättömyyspisteen kullekin viiveelle ja antaa hyperbolisen k:n ja käyrän alaisen pinta-alan. Mittaa impulsiivisuutta.",rules:[{key:"F / J",desc:"Valitse VASEN (F) tai OIKEA (J) vaihtoehto"},{key:"NYT vs MYÖHEMMIN",desc:"Pienempi summa nyt tai $1000 viiveen jälkeen"},{key:"EI VÄÄRÄÄ VASTAUSTA",desc:"Valitse vaihtoehto, jonka aidosti haluat"},{key:"VIIVEET",desc:"Viive kasvaa päivistä vuosiin"},{key:"MITTARIT",desc:"Hyperbolinen k, ln(k), käyrän pinta-ala, % välitön"}]},
  SRTT:{name:"SARJALLINEN REAKTIOAIKA",body:"Paina syttyneen ruudun näppäintä; sijainnit noudattavat salaa toistuvaa sarjaa, joten vasteet nopeutuvat oppimisen myötä. Satunnaislohko paljastaa oppimisen.",rules:[{key:"D F J K",desc:"Jokaisella ruudulla on näppäin — paina syttynyttä"},{key:"OLE NOPEA",desc:"Vastaa nopeasti ja tarkasti"},{key:"PIILOSARJA",desc:"Sijainnit noudattavat toistuvaa kuviota"},{key:"SATUNNAISLOHKO",desc:"Yksi lohko on satunnainen — RA nousee jos opit"},{key:"MITTARIT",desc:"RA lohkoittain, oppimisvaikutus, tarkkuus"}]},
  BART:{name:"ILMAPALLON RISKITEHTÄVÄ (BART)",body:"Pumppaa ilmapalloa rahasta; jokainen pumppaus tuo palkkion mutta kasvattaa puhkeamisriskiä. Lunasta milloin vain; jos se puhkeaa, menetät sen pallon. Korjattu pumppausten keskiarvo mittaa riskinottoa.",rules:[{key:"PUMPPAA (F)",desc:"Pumppaa palloa — jokainen pumppaus tuo rahaa ja riskiä"},{key:"LUNASTA (J)",desc:"Tallenna nykyisen pallon rahat ja jatka"},{key:"PUHKEAMINEN",desc:"Jos se puhkeaa ennen lunastusta, rahat menevät"},{key:"VAIHTOKAUPPA",desc:"Suurempi palkkio vaatii lisää pumppauksia, lisää riskiä"},{key:"MITTARIT",desc:"Korjatut pumppaukset, kokonaisansio, puhkeamiset"}]},
  OSPAN:{name:"OPERAATIOJÄNNE",body:"Vuorottele lyhyen yhtälön arviointia (tosi/epätosi) ja kirjaimen muistamista; muistele lopuksi kirjaimet järjestyksessä. Monimutkaisen työmuistikapasiteetin vakiomitta.",rules:[{key:"YHTÄLÖ",desc:"Onko lasku oikein? — TOSI (T) / EPÄTOSI (F)"},{key:"KIRJAIN",desc:"Muista jokaisen yhtälön jälkeen näytetty kirjain"},{key:"MUISTELU",desc:"Napsauta lopuksi kirjaimet alkuperäisessä järjestyksessä"},{key:"PIDÄ TAHTI",desc:"Vastaa nopeasti — älä pysähdy kertaamaan"},{key:"MITTARIT",desc:"Osittais- ja absoluuttipisteet, laskutarkkuus"}]},
  TBIS:{name:"AJALLINEN BISEKTIO",body:"Opi LYHYT ja PITKÄ vakiokesto, arvioi sitten onko kukin välähdys lähempänä LYHYTTÄ vai PITKÄÄ. Antaa bisektiopisteen ja Weberin suhteen; aktivoi CNV:n.",rules:[{key:"OPI",desc:"Katso ensin LYHYT ja PITKÄ vakio"},{key:"ARVIOI",desc:"Oliko välähdys LYHYT (F) vai PITKÄ (J)?"},{key:"EI PALAUTETTA",desc:"Testikokeet eivät anna palautetta — luota havaintoosi"},{key:"ÄLÄ LASKE",desc:"Kestot ovat lyhyitä — arvioi tunteella"},{key:"MITTARIT",desc:"Bisektiopiste, Weberin suhde, osuus-pitkä-käyrä"}]},

  GNG:{name:"MENE / ÄLÄ MENE",body:"Mene/Älä-mene-tehtävä mittaa vasteen estoa — kykyäsi tukahduttaa vallitseva toiminta. Joka kokeessa keskelle ilmestyy ärsyke. Reagoi nopeasti Mene-ärsykkeisiin (●) ja pidätä vaste Älä-mene-ärsykkeisiin (○).",rules:[{key:"F / VÄLILYÖNTI",desc:"MENE — reagoi kohdeärsykkeeseen"},{key:"J",desc:"ÄLÄ MENE — pidätä vaste"},{key:"● (täytetty)",desc:"MENE — reagoi mahdollisimman nopeasti"},{key:"○ (avoin)",desc:"ÄLÄ MENE — älä reagoi"},{key:"AIKAKATKO",desc:"Ei vastausta 1,5 s:ssa lasketaan pidätetyksi"},{key:"SUHDE",desc:"70 % Mene-kokeita · 30 % Älä-mene-kokeita"}]},
  NBACK:{name:"N-TAKAISIN (1-takaisin)",body:"N-takaisin-tehtävä mittaa työmuistin päivittämistä. Joka kokeessa ilmestyy kirjain. Päätä, vastaako nykyinen kirjain täsmälleen yksi koe sitten näytettyä.",rules:[{key:"F / VÄLILYÖNTI",desc:"VASTAAVUUS — kirjain vastaa N koetta takaisin"},{key:"J",desc:"EI VASTAAVUUTTA — kirjain ei vastaa"},{key:"ENSIMMÄINEN",desc:"Oikea vastaus ei ole mahdollinen — vain havainnoi"},{key:"TIHEYS",desc:"~35 % kokeista on vastaavuuksia"}]},
  SPATIAL:{name:"TILA-HUOMIO",body:"Mittaa visuospatiaalista käsittelyä ja valikoivaa huomiota. Joka kokeessa yksi solu 3×3-ruudukosta korostuu. Klikkaa korostettua solua mahdollisimman nopeasti.",rules:[{key:"KLIKKAA",desc:"Klikkaa korostettua solua mahdollisimman nopeasti"},{key:"TARKKUUS",desc:"Väärän solun klikkaaminen lasketaan virheeksi"},{key:"AIKAKATKO",desc:"Ei vastausta 1,5 s:ssa kirjataan puuttuvaksi"}]},
  POSNER:{name:"POSNER-PARADIGMA",body:"Mittaa peiteltyä avaruudellista huomiota. Vihje suuntaa huomion todennäköiseen kohdesijaintiin. Nopeampi RT validityyppisissä kokeissa paljastaa huomion edun.",rules:[{key:"VÄLILYÖNTI / F",desc:"Reagoi kohteen ilmestyessä"},{key:"ENDOGEENINEN",desc:"Keskinen nuoli — tahdonalainen huomion siirto"},{key:"EKSOGEENINEN",desc:"Reuna-välähdys — automaattinen reflektoiva sieppaus"},{key:"ETU",desc:"Etu = RT epävalidi − RT validi"}]},
  VRT:{name:"VISUAALINEN TUNNISTAMINEN",body:"Mittaa visuaalista episodista muistia. Abstrakteja geometrisia kuvioita näytetään opiskeluun. Säilytysvälin jälkeen ilmestyy kuviopari — yksi opiskeltu ja yksi uusi. Tunnista se, jonka näit.",rules:[{key:"OPISKELE",desc:"Tutki kuviomatriisi — 4 s per sarja"},{key:"TESTI",desc:"Kaksi kuviota ilmestyy — klikkaa opiskeltua"},{key:"MITTARIT",desc:"Osumat, väärät hälytykset, d′ ja RT"}]},
  CSR:{name:"KONTRASTIN KÄÄNTÖ",body:"Šakkilauta kääntää napaisuutensa jatkuvasti. Useimmat kääntymiset ovat standardeja. Pieni osa on KOHDE-kääntymisiä — 45°:n kierto yhden syklin ajan. Reagoi heti kun havaitset muutoksen.",rules:[{key:"VÄLILYÖNTI",desc:"Paina kun havaitset KOHDE-kääntymisen (kierretty)"},{key:"HAVAINNOI",desc:"Lauta kääntyy jatkuvasti — pidä katse paikallaan"},{key:"STANDARDI",desc:"Useimmat kääntymiset ovat standardeja — ÄLÄ reagoi"},{key:"KOHDE",desc:"Satunnainen 45°:n kierto — paina VÄLILYÖNTIÄ heti"}]},
  P300:{name:"KUULON P300",body:"Kuulon oddball-paradigma synnyttää P300-komponentin. Virta tavallisia standarditoneja esitetään harvinaisilla oddball-toneilla väliin. Havaitse oddball-toni ja paina VÄLILYÖNTIÄ. Standardi: 1000 Hz; oddball: 2000 Hz. Todennäköisyys: 20 %.",rules:[{key:"VÄLILYÖNTI",desc:"Paina HARVINAISTA (korkeaa) tonia"},{key:"STANDARDI",desc:"1000 Hz (tavallinen) — ÄLÄ reagoi"},{key:"ODDBALL",desc:"2000 Hz (harvinainen, 20 %) — paina VÄLILYÖNTIÄ"},{key:"KUULOKKEET",desc:"Käytä kuulokkeita parempaan erottelukykyyn"}]},
  STB:{name:"STERNBERGIN MUISTI",body:"Mittaa hakunopeutta verbaalisessa työmuistissa. Kirjainsarja näytetään YKSI KERRALLAAN — 1 s kukin. Säilytysvälin jälkeen ilmestyy luotain-kirjain. Vastaa KYLLÄ, jos se oli sarjassa.",rules:[{key:"F / VÄLILYÖNTI",desc:"KYLLÄ — luotain-kirjain OLI sarjassa"},{key:"J",desc:"EI — luotain-kirjain EI ollut sarjassa"},{key:"OPISKELU",desc:"Kirjaimet ilmestyvät YKSI KERRALLAAN — 1 s kukin"},{key:"NOPEUS",desc:"Vastaa mahdollisimman nopeasti ja tarkasti"}]},
  WCST:{name:"WISCONSIN KORTTILAJITTELU",body:"Klassinen kognitiivisen joustavuuden ja toiminnanohjauksen testi. Lajittele kortit piilotetun säännön (väri / muoto / lukumäärä) mukaan palautteen perusteella. Sääntö muuttuu varoittamatta. Perseveraatiovirheet kirjataan.",rules:[{key:"1 / 2 / 3 / 4",desc:"Valitse kohde-kortti, johon nykyinen sopii"},{key:"PALAUTE",desc:"OIKEIN / VÄÄRIN ilmestyy joka kokeen jälkeen"},{key:"SÄÄNTÖ",desc:"Väri, muoto tai lukumäärä — päättele lajitteluperuste"},{key:"VAIHTO",desc:"10 oikean perään jälkeen sääntö muuttuu hiljaa"},{key:"PERSEVERAATIO",desc:"Vanhan säännön jatkaminen = perseveraatiovirhe"}]},
  RECALL:{name:"SANOJEN TUNNISTAMINEN",body:"Mittaa episodista muistia tunnistamisen avulla (helpompi vastata kuin vapaa palauttaminen). Opiskele luettelo tavallisia sanoja yksitellen. Lyhyen häiritsevän tehtävän jälkeen sanoja näytetään yksitellen: osa oli luettelossa (VANHA) ja osa on uusia (UUSI). Päätä, näitkö kunkin sanan opiskelun aikana. Osumat, väärät hälytykset ja d′ tallennetaan.",rules:[{key:"F = VANHA",desc:"Paina F, jos sana OLI luettelossa"},{key:"J = UUSI",desc:"Paina J, jos sana EI ollut luettelossa"},{key:"OPISKELE",desc:"Lue jokainen sana huolella — 2 s kukin"},{key:"HÄIRINTÄ",desc:"30 s laskutoimitusta työmuistin tyhjentämiseksi"}]},
  TMT:{name:"POLKUTESTI",body:"Osa A: yhdistä numerot 1–25 järjestyksessä mahdollisimman nopeasti. Osa B: vuorottele numeroita ja kirjaimia (1-A-2-B-3-C…). B/A-suhde indeksoi joukkovaihtoa — toiminnanohjauksen ydinkomponenttia.",rules:[{key:"KLIKKAA",desc:"Klikkaa solmuja järjestyksessä — älä ohita"},{key:"OSA A",desc:"Yhdistä 1–2–3–…–25 — psykomotorinen nopeus"},{key:"OSA B",desc:"Vuorottele 1–A–2–B–3–C… — joukkovaihto"},{key:"VIRHEET",desc:"Väärä klikkaus = yritä uudelleen oikeaan"}]},
  DSC:{name:"NUMERO-SYMBOLI-KOODAUS",body:"WAIS-IV-osatesti — käsittelynopeuden kultainen standardi. Yläosassa avain liittää 1–9 yksilöllisiin symboleihin. Kirjoita symboli kunkin numeron alle mahdollisimman nopeasti 90 sekunnin aikana.",rules:[{key:"KIRJOITA",desc:"Kirjoita kunkin numeron mukainen symboli"},{key:"AVAIN",desc:"Avain pysyy näkyvissä koko testin ajan"},{key:"NOPEUS",desc:"90 sekuntia — käsittele niin monta kuin pystyt"},{key:"PISTEET",desc:"Oikeiden parien määrä 90 s:ssa"}]},
  PNT:{name:"KUVAN NIMEÄMINEN",body:"Tavallisia esineitä ilmestyy; nimeä ne ääneen mahdollisimman nopeasti. Puheentunnistus tallentaa vastaukset ja reaktioajat. Mittaa leksikaalista pääsyä ja nimeämisnopeutta — heikentynyt afasiassa ja Alzheimerin taudissa.",rules:[{key:"MIKROFONI",desc:"Käynnistä mikrofoni — puheentunnistus vaaditaan"},{key:"PUHU",desc:"Sano esineen nimi ääneen"},{key:"NOPEUS",desc:"Reagoi mahdollisimman nopeasti — RT analysoidaan"},{key:"AIKAKATKO",desc:"Ei vastausta 4 s:ssa kirjataan puuttuvaksi"}]},
  MRT:{name:"MIELIKUVAROTAATIO",body:"Klassinen Shepard-Metzler-tehtävä. Kaksi 3D-kuviota ilmestyy eri suunnissa. Päätä, ovatko ne sama muoto (avaruudessa kierrettynä) vai peilikuvia. RT kasvaa lineaarisesti rotaatiokulman mukaan.",rules:[{key:"F",desc:"SAMAT — kuviot ovat identtisiä rotaation jälkeen"},{key:"J",desc:"PEILI — kuviot ovat peilikuvia"},{key:"PYÖRITÄ",desc:"Pyöritä mielessäsi yhtä sovittaaksesi toiseen"},{key:"KULMA",desc:"RT kasvaa lineaarisesti kulmaeron kanssa"}]},
  FLANKER:{name:"ERIKSEN-FLANKER",body:"Klassinen visuaalisen valikoivan huomion ja konfliktinhallinnan mitta. Reagoi keskimmäisen nuolen suuntaan ja jätä huomiotta sivunuolet. Inkongruentit kokeet (sivunuolet vastakkain) hidastavat RT:tä — Flanker-efekti.",rules:[{key:"F",desc:"Keskinuoli osoittaa VASEMMALLE"},{key:"J",desc:"Keskinuoli osoittaa OIKEALLE"},{key:"KONGRUENTTI",desc:"Kaikki nuolet samaan suuntaan — nopea RT"},{key:"INKONGRUENTTI",desc:"Sivunuolet vastakkain — konflikti hidastaa RT:tä"},{key:"EFEKTI",desc:"Konfliktikustannus = RT inkongr. − RT kongr."}]},
  STOP:{name:"PYSÄHDYSSIGNAALI",body:"Mittaa vasteen estoa porrastetun menetelmän avulla. Reagoi nuoliin. Pienellä osalla kokeista soitetaan pysähdyssignaali (ääni) — yritä tukahduttaa vaste. SSRT (pysähdyssignaalin reaktioaika) indeksoi eston nopeutta.",rules:[{key:"F / J",desc:"Reagoi nuolen suuntaan"},{key:"SIGNAALI",desc:"Äänen kuullessasi — ÄLÄ paina"},{key:"PORRAS",desc:"SSD nousee onnistuneen eston jälkeen, laskee epäonnistumisen jälkeen"},{key:"SSRT",desc:"Keskimääräinen Mene-RT − lopullinen SSD = SSRT"}]},
  STROOP:{name:"VÄRI-SANA-STROOP",body:"Klassinen toiminnanohjauksen testi. Värisanat (PUNAINEN, SININEN, VIHREÄ) esitetään värillisellä musteella. Reagoi MUSTEEN VÄRIIN ja jätä sana huomiotta. Inkongruentit kokeet (sana “PUNAINEN” vihreällä musteella) hidastavat RT:tä — Stroop-interferenssi.",rules:[{key:"R",desc:"MUSTE ON PUNAINEN"},{key:"G",desc:"MUSTE ON VIHREÄ"},{key:"B",desc:"MUSTE ON SININEN"},{key:"OHITA",desc:"Reagoi VÄRIIN — älä lue sanaa"},{key:"EFEKTI",desc:"Interferenssi = RT inkongr. − RT kongr."}]},
  DST:{name:"NUMEROSARJA (WAIS-IV)",body:"Klassinen verbaalisen työmuistin mitta. Numeroita esitetään yksitellen. Eteenpäin: toista samassa järjestyksessä. Taaksepäin: toista käänteisessä järjestyksessä. Onnistuneesti toistetun sarjan enimmäispituus = sinun spannisi.",rules:[{key:"KUUNTELE",desc:"Numerot esitetään — 1 s kukin"},{key:"ETEENPÄIN",desc:"Kirjoita samassa järjestyksessä"},{key:"TAAKSEPÄIN",desc:"Kirjoita KÄÄNTEISESSÄ järjestyksessä"},{key:"PORRAS",desc:"Pituus kasvaa 2 oikean perään jälkeen"},{key:"SPAN",desc:"Pisin oikein toistettu sarja"}]},
  FTT:{name:"SORMINAPSAUTUS",body:"Halstead-Reitan-napsautus. Napsauta välilyöntiä mahdollisimman nopeasti 10 s ajan. Viisi blokkia per käsi (dominoiva → ei-dominoiva → vuorotteleva). Mittaa motorista nopeutta, säännöllisyyttä ja kaksikätistä koordinaatiota.",rules:[{key:"VÄLILYÖNTI",desc:"Napsauta mahdollisimman nopeasti — koko 10 s"},{key:"5 BLOKKIA",desc:"5 koetta à 10 s per olosuhde"},{key:"DOMINOIVA",desc:"Aloita dominoivalla kädellä"},{key:"EI-DOM.",desc:"Sitten ei-dominoiva käsi"},{key:"KESKIARVO",desc:"Napsautusten keskiarvo per blokki — päämitta"}]},
  N400:{name:"SEMANTTINEN PRIMING N400",body:"N400-komponentti indeksoi semanttista käsittelyä. Lauseet esitetään sana kerrallaan, päättyen joko odotettuun (KONGRUENTTI) tai odottamattomaan (INKONGRUENTTI) loppusanaan. Päätä onko loppusana mielekäs. Inkongruentit lauseet aiheuttavat suuremman N400:n sentro-parietaalisilla alueilla ~400 ms.",rules:[{key:"F / VÄLILYÖNTI",desc:"MIELEKÄS — lause on kongruentti"},{key:"J",desc:"EI MIELEKÄS — loppusana odottamaton"},{key:"N400",desc:"Sentro-parietaalinen negatiivinen huippu ~400 ms"},{key:"SUUREMPI",desc:"N400 on suurempi semanttisille rikkomuksille"}]},
  MMN:{name:"POIKKEAVUUSNEGATIIVISUUS (MMN)",body:"Passiivinen kuulon oddball-paradigma. 1000 Hz (standardi, 85 %) ja 1200 Hz (poikkeava, 15 %) -toneja esitetään kuulokkeiden kautta. MMN on automaattinen ennen tarkkaavaisuutta tapahtuva vaste ~150–250 ms fronto-sentraalisilla alueilla. Tarkkaavaisuutta ei vaadita.",rules:[{key:"KUUNTELE",desc:"Kuuntele passiivisesti kuulokkeiden kautta"},{key:"STANDARDI",desc:"1000 Hz (85 %)"},{key:"POIKKEAVA",desc:"1200 Hz (15 %) — eroaa taajuudeltaan"},{key:"MMN",desc:"Fronto-sentraalinen negatiivinen ~150–250 ms"},{key:"ENNEN TARK.",desc:"Aktiivista tehtävää ei tarvita — katso mykkä elokuva"}]},
  P600:{name:"SYNTAKTINEN P600",body:"P600-komponentti indeksoi syntaktista käsittelyä. Lauseet, joissa on kieliopillisia rikkomuksia (esim. virheellinen lukukongruenssi) tai ei, esitetään sana kerrallaan. Päätä onko lause kieliopillisesti oikein. Rikkomukset aiheuttavat positiivisen siirtymän ~500–800 ms parietaalisilla alueilla.",rules:[{key:"F / VÄLILYÖNTI",desc:"OIKEIN — lause on kieliopillinen"},{key:"J",desc:"VIRHE — lause sisältää syntaktisen virheen"},{key:"P600",desc:"Parietaalinen positiivinen huippu 500–800 ms"},{key:"ERO",desc:"P600 erottuu N400:sta (semantiikka)"}]},
  ERN:{name:"VIRHEEEN LIITTYVÄ NEGATIIVISUUS",body:"Nopea pakkovalintatehtävä aiheuttaa virheitä. Nuolet ilmestyvät keskelle; paina F vasemmalle, J oikealle. Nopeusrutiini (~400 ms per vaste) takaa virheitä. ERN on fronto-sentraalinen negatiivisuus 0–100 ms virheellisen vasteen JÄLKEEN, jonka tuottaa etu-pihtipoimukuori.",rules:[{key:"F",desc:"Nuoli vasemmalle"},{key:"J",desc:"Nuoli oikealle"},{key:"NOPEUS",desc:"Reagoi erittäin nopeasti — virheitä halutaan"},{key:"ERN",desc:"Fronto-sentraalinen negatiivinen 0–100 ms virheen jälkeen"},{key:"LÄHDE",desc:"Etu-pihtipoimukuoren (ACC) tuottama"}]},
  CNV:{name:"EHDOLLINEN NEGATIIVINEN VAIHTELU",body:"S1 (varoitus) → S2 (käsky). Reagoi S2:een mahdollisimman nopeasti. Hidas negatiivinen siirtymä S1:n ja S2:n välillä heijastaa motorista valmistautumista ja ajallista odotusta. Frontaalisen CNV:n tuottavat etu-pihtipoimu- ja täydentävä motorinen kuori.",rules:[{key:"S1",desc:"Kuulo- tai näköperäinen varoitusvihje"},{key:"S2",desc:"Käskyärsyke 1500 ms:n kuluttua"},{key:"VÄLILYÖNTI",desc:"Reagoi S2:een mahdollisimman nopeasti"},{key:"CNV",desc:"Hidas negatiivinen siirtymä S1–S2 fronto-sentraalisesti"},{key:"LÄHDE",desc:"Etu-pihtipoimu ja SMA"}]}
};
const PARADIGMS_RU={
  PRL:{name:"ВЕРОЯТНОСТНОЕ РЕВЕРСИВНОЕ ОБУЧЕНИЕ",body:"Выбирайте между двумя стимулами при награде 80/20; лучший меняется без предупреждения. Измеряет гибкость на основе награды и мониторинг обратной связи (FRN/RewP).",rules:[{key:"F / J",desc:"Выберите ЛЕВЫЙ (F) или ПРАВЫЙ (J) стимул"},{key:"80 / 20",desc:"Хороший вознаграждается ~80%, плохой ~20%"},{key:"РЕВЕРС",desc:"Хороший и плохой стимулы меняются без предупреждения"},{key:"ВЫИГРАЛ-ОСТАЛСЯ",desc:"Один проигрыш не означает неверный выбор"},{key:"МЕРЫ",desc:"Точность, реверсы, персеверативные ошибки, выиграл-остался/проиграл-сменил"}]},
  DD:{name:"ДИСКОНТИРОВАНИЕ ОТСРОЧКИ",body:"Повторный выбор между меньшей-скорой и большей-отсроченной ($1000) наградой; лестница находит точку безразличия для каждой задержки, давая гиперболическое k и площадь под кривой. Измеряет импульсивность.",rules:[{key:"F / J",desc:"Выберите ЛЕВЫЙ (F) или ПРАВЫЙ (J) вариант"},{key:"СЕЙЧАС vs ПОТОМ",desc:"Меньшая сумма сейчас или $1000 после задержки"},{key:"НЕТ НЕВЕРНОГО ОТВЕТА",desc:"Выбирайте то, что действительно предпочитаете"},{key:"ЗАДЕРЖКИ",desc:"Задержка растёт от дней к годам"},{key:"МЕРЫ",desc:"Гиперболическое k, ln(k), площадь под кривой, % немедленных"}]},
  SRTT:{name:"СЕРИЙНОЕ ВРЕМЯ РЕАКЦИИ",body:"Нажимайте клавишу подсвеченной ячейки; позиции тайно следуют повторяющейся последовательности, поэтому реакции ускоряются по мере её усвоения. Случайный блок выявляет научение.",rules:[{key:"D F J K",desc:"У каждой ячейки своя клавиша — нажмите подсвеченную"},{key:"БУДЬТЕ БЫСТРЫ",desc:"Отвечайте быстро и точно"},{key:"СКРЫТАЯ ПОСЛЕД.",desc:"Позиции следуют повторяющемуся узору"},{key:"СЛУЧАЙНЫЙ БЛОК",desc:"Один блок случайный — ВР растёт, если усвоено"},{key:"МЕРЫ",desc:"ВР по блокам, эффект научения, точность"}]},
  BART:{name:"ЗАДАЧА РИСКА С ШАРИКОМ (BART)",body:"Надувайте шарик за деньги; каждое нажатие добавляет награду, но повышает риск разрыва. Заберите в любой момент; если лопнет — теряете этот шарик. Скорректированное среднее число накачиваний измеряет рискованность.",rules:[{key:"НАКАЧАТЬ (F)",desc:"Надувайте шарик — каждое нажатие добавляет деньги и риск"},{key:"ЗАБРАТЬ (J)",desc:"Сохраните деньги текущего шарика и продолжайте"},{key:"РАЗРЫВ",desc:"Если лопнет до сохранения — деньги потеряны"},{key:"КОМПРОМИСС",desc:"Больше награды требует больше нажатий, больше риска"},{key:"МЕРЫ",desc:"Скорр. накачивания, всего заработано, разрывы"}]},
  OSPAN:{name:"ОПЕРАЦИОННЫЙ ОБЪЁМ",body:"Чередуйте оценку короткого уравнения (верно/неверно) и запоминание буквы; затем вспомните буквы по порядку. Эталонная мера сложного объёма рабочей памяти.",rules:[{key:"УРАВНЕНИЕ",desc:"Верен ли пример? — ВЕРНО (T) / НЕВЕРНО (F)"},{key:"БУКВА",desc:"После каждого уравнения запомните показанную букву"},{key:"ВОСПРОИЗВ.",desc:"В конце нажмите буквы в исходном порядке"},{key:"ДЕРЖИТЕ ТЕМП",desc:"Отвечайте быстро — не останавливайтесь повторять"},{key:"МЕРЫ",desc:"Частичный и абсолютный балл, точность счёта"}]},
  TBIS:{name:"ВРЕМЕННАЯ БИСЕКЦИЯ",body:"Выучите КОРОТКИЙ и ДЛИННЫЙ эталоны длительности, затем решайте, к чему ближе каждая вспышка — к КОРОТКОМУ или ДЛИННОМУ. Даёт точку бисекции и коэффициент Вебера; задействует CNV.",rules:[{key:"ВЫУЧИТЕ",desc:"Сначала посмотрите КОРОТКИЙ и ДЛИННЫЙ эталоны"},{key:"РЕШИТЕ",desc:"Вспышка была КОРОТКОЙ (F) или ДЛИННОЙ (J)?"},{key:"БЕЗ ОБР. СВЯЗИ",desc:"В тесте нет обратной связи — доверяйте восприятию"},{key:"НЕ СЧИТАЙТЕ",desc:"Длительности коротки — судите по ощущению"},{key:"МЕРЫ",desc:"Точка бисекции, коэффициент Вебера, кривая доли-длинных"}]},

  GNG:{name:"ИДИ / НЕ ИДИ",body:"Задача Go/No-Go измеряет торможение реакции — вашу способность подавлять преобладающее действие. В каждой пробе в центре появляется стимул. Быстро реагируйте на Go-стимулы (●) и удерживайте реакцию на No-Go-стимулы (○).",rules:[{key:"F / ПРОБЕЛ",desc:"ИДИ — реагируйте на целевой стимул"},{key:"J",desc:"НЕ ИДИ — удержите реакцию"},{key:"● (заполненный)",desc:"ИДИ — реагируйте как можно быстрее"},{key:"○ (пустой)",desc:"НЕ ИДИ — не реагируйте"},{key:"ТАЙМАУТ",desc:"Если нет ответа за 1,5 с — считается удержанным"},{key:"ПРОПОРЦИЯ",desc:"70 % проб Go · 30 % проб No-Go"}]},
  NBACK:{name:"N-НАЗАД (1-назад)",body:"Задача N-назад измеряет обновление рабочей памяти. В каждой пробе появляется буква. Решите, совпадает ли текущая буква с той, что была предъявлена ровно одну пробу назад.",rules:[{key:"F / ПРОБЕЛ",desc:"СОВПАДЕНИЕ — буква совпадает с предъявленной N проб назад"},{key:"J",desc:"НЕТ СОВПАДЕНИЯ — буква не совпадает"},{key:"ПЕРВАЯ ПРОБА",desc:"Правильный ответ невозможен — просто наблюдайте"},{key:"ЧАСТОТА",desc:"~35 % проб являются совпадениями"}]},
  SPATIAL:{name:"ПРОСТРАНСТВЕННОЕ ВНИМАНИЕ",body:"Измеряет зрительно-пространственную обработку и избирательное внимание. В каждой пробе подсвечивается одна ячейка сетки 3×3. Кликните на подсвеченную ячейку как можно быстрее.",rules:[{key:"КЛИК",desc:"Кликните на подсвеченную ячейку как можно быстрее"},{key:"ТОЧНОСТЬ",desc:"Клик на неверную ячейку засчитывается как ошибка"},{key:"ТАЙМАУТ",desc:"Если нет ответа за 1,5 с — фиксируется как пропуск"}]},
  POSNER:{name:"ПАРАДИГМА ПОЗНЕРА",body:"Измеряет скрытое пространственное внимание. Подсказка ориентирует внимание на вероятное местоположение цели. Более быстрое ВР в валидных пробах отражает выгоду внимания.",rules:[{key:"ПРОБЕЛ / F",desc:"Реагируйте на появление цели"},{key:"ЭНДОГЕННАЯ",desc:"Центральная стрелка — произвольное смещение внимания"},{key:"ЭКЗОГЕННАЯ",desc:"Периферическая вспышка — автоматический рефлекторный захват"},{key:"ВЫГОДА",desc:"Выгода = ВР невалид. − ВР валид."}]},
  VRT:{name:"ЗРИТЕЛЬНОЕ УЗНАВАНИЕ",body:"Измеряет зрительную эпизодическую память. На фазе изучения предъявляются абстрактные геометрические узоры. После интервала удержания появляются пары узоров — изученный и новый. Опознайте тот, который вы видели.",rules:[{key:"ИЗУЧЕНИЕ",desc:"Смотрите на матрицу узоров — 4 с на набор"},{key:"ТЕСТ",desc:"Появляются два узора — кликните на изученный"},{key:"МЕТРИКИ",desc:"Точность попаданий, ложные тревоги, d′ и ВР"}]},
  CSR:{name:"ИНВЕРСИЯ КОНТРАСТА",body:"Шахматная доска постоянно инвертирует полярность. Большинство инверсий стандартные. Малая доля — ЦЕЛЕВЫЕ инверсии: поворот на 45° в течение одного цикла. Реагируйте, как только заметите изменение.",rules:[{key:"ПРОБЕЛ",desc:"Нажмите при обнаружении ЦЕЛЕВОЙ (повёрнутой) инверсии"},{key:"НАБЛЮДАЙТЕ",desc:"Доска инвертируется постоянно — сохраняйте фиксацию"},{key:"СТАНДАРТ",desc:"Большинство инверсий стандартные — НЕ реагируйте"},{key:"ЦЕЛЬ",desc:"Случайные повороты на 45° — нажмите ПРОБЕЛ немедленно"}]},
  P300:{name:"СЛУХОВОЙ P300",body:"Слуховая oddball-парадигма вызывает компонент P300. Поток частых стандартных тонов с редкими oddball-тонами. Обнаружьте oddball-тон и нажмите ПРОБЕЛ. Стандарт: 1000 Гц; oddball: 2000 Гц. Вероятность: 20 %.",rules:[{key:"ПРОБЕЛ",desc:"Нажмите на РЕДКИЙ (высокий) тон"},{key:"СТАНДАРТ",desc:"1000 Гц (частый) — НЕ реагируйте"},{key:"ODDBALL",desc:"2000 Гц (редкий, 20 %) — нажмите ПРОБЕЛ"},{key:"НАУШНИКИ",desc:"Используйте наушники для лучшего различения"}]},
  STB:{name:"ПАМЯТЬ СТЕРНБЕРГА",body:"Измеряет скорость поиска в вербальной рабочей памяти. Набор букв предъявляется ПО ОДНОЙ — по 1 с каждая. После интервала удержания появляется буква-зонд. Ответьте ДА, если она была в наборе.",rules:[{key:"F / ПРОБЕЛ",desc:"ДА — буква-зонд БЫЛА в наборе"},{key:"J",desc:"НЕТ — буква-зонд НЕ БЫЛА в наборе"},{key:"ИЗУЧЕНИЕ",desc:"Буквы появляются ПО ОДНОЙ — по 1 с каждая"},{key:"СКОРОСТЬ",desc:"Отвечайте максимально быстро и точно"}]},
  WCST:{name:"ВИСКОНСИНСКИЙ ТЕСТ СОРТИРОВКИ КАРТ",body:"Классический тест когнитивной гибкости и исполнительных функций. Сортируйте карты по скрытому правилу (цвет / форма / число), используя обратную связь. Правило меняется без предупреждения. Подсчитываются персеверативные ошибки.",rules:[{key:"1 / 2 / 3 / 4",desc:"Выберите карту-образец, к которой относится текущая карта"},{key:"ОБРАТНАЯ СВЯЗЬ",desc:"ПРАВИЛЬНО / НЕВЕРНО показывается после каждой пробы"},{key:"ПРАВИЛО",desc:"Цвет, форма или число — выясните, по чему сортировать"},{key:"СМЕНА",desc:"После 10 правильных подряд правило тихо меняется"},{key:"ПЕРСЕВЕРАЦИЯ",desc:"Продолжение по старому правилу = персеверативная ошибка"}]},
  RECALL:{name:"УЗНАВАНИЕ СЛОВ",body:"Измеряет эпизодическую память через узнавание (отвечать легче, чем при свободном припоминании). Изучается список обычных слов по одному. После короткой отвлекающей задачи слова показываются по одному: некоторые были в списке (СТАРОЕ), а некоторые новые (НОВОЕ). Решите, видели ли вы каждое слово во время изучения. Регистрируются попадания, ложные тревоги и d′.",rules:[{key:"F = СТАРОЕ",desc:"Нажмите F, если слово БЫЛО в изученном списке"},{key:"J = НОВОЕ",desc:"Нажмите J, если слова НЕ было в списке"},{key:"ИЗУЧЕНИЕ",desc:"Внимательно читайте каждое слово — по 2 секунды"},{key:"ОТВЛЕЧЕНИЕ",desc:"Решайте арифметику 30 с"}]},
  TMT:{name:"ТЕСТ СОЕДИНЕНИЯ СЛЕДОВ",body:"Часть A: соедините числа 1–25 по порядку как можно быстрее. Часть B: чередуйте числа и буквы (1-A-2-B-3-C…). Соотношение B / A индексирует переключение установки — ключевой компонент исполнительной функции.",rules:[{key:"КЛИК",desc:"Кликайте по узлам по порядку — без пропусков"},{key:"ЧАСТЬ A",desc:"Соедините 1–2–3–…–25 — скорость психомоторики"},{key:"ЧАСТЬ B",desc:"Чередуйте 1–A–2–B–3–C…—переключение установки"},{key:"ОШИБКИ",desc:"Неверный клик = пробуйте снова до правильного"}]},
  DSC:{name:"КОДИРОВАНИЕ ЦИФРА-СИМВОЛ",body:"Субтест WAIS-IV — золотой стандарт скорости обработки. Сверху ключ сопоставляет 1–9 со специальными символами. Введите символ под каждой цифрой как можно быстрее в течение 90 секунд.",rules:[{key:"ПЕЧАТЬ",desc:"Введите символ, соответствующий каждой цифре"},{key:"КЛЮЧ",desc:"Ключ остаётся видимым в течение всего теста"},{key:"СКОРОСТЬ",desc:"90 секунд — обработайте как можно больше"},{key:"СЧЁТ",desc:"Количество правильных пар за 90 с"}]},
  PNT:{name:"НАЗЫВАНИЕ КАРТИНОК",body:"Появляются обычные предметы; называйте их вслух как можно быстрее. Голосовой ввод фиксирует ответы и время реакции. Измеряет лексический доступ и скорость называния — нарушено при афазии и болезни Альцгеймера.",rules:[{key:"МИКРОФОН",desc:"Включите микрофон — голосовой ввод обязателен"},{key:"ГОВОРИТЕ",desc:"Произнесите название предмета вслух"},{key:"СКОРОСТЬ",desc:"Реагируйте как можно быстрее — ВР анализируется"},{key:"ТАЙМАУТ",desc:"Если нет ответа за 4 с — записывается как пропуск"}]},
  MRT:{name:"МЕНТАЛЬНОЕ ВРАЩЕНИЕ",body:"Классический тест Шепарда–Метцлера. Появляются две 3D-фигуры в разных ориентациях. Решите, являются ли они одной и той же формой (поверну­той в пространстве) или зеркальными отражениями. ВР линейно растёт с углом поворота.",rules:[{key:"F",desc:"ОДИНАКОВЫЕ — фигуры идентичны после поворота"},{key:"J",desc:"ЗЕРКАЛЬНЫЕ — фигуры являются зеркальными отражениями"},{key:"ВРАЩАЙТЕ",desc:"Мысленно поверните одну, чтобы сопоставить с другой"},{key:"УГОЛ",desc:"ВР растёт линейно с угловым различием"}]},
  FLANKER:{name:"ФЛАНКЕР ЭРИКСЕНА",body:"Классическая мера зрительного избирательного внимания и контроля конфликта. Реагируйте на направление центральной стрелки, игнорируя боковые. Неконгруэнтные пробы (фланкеры указывают в противоположную сторону) замедляют ВР — эффект Фланкера.",rules:[{key:"F",desc:"Центральная стрелка указывает ВЛЕВО"},{key:"J",desc:"Центральная стрелка указывает ВПРАВО"},{key:"КОНГРУЭНТНЫЕ",desc:"Все стрелки в одну сторону — быстрое ВР"},{key:"НЕКОНГРУЭНТНЫЕ",desc:"Фланкеры в противоположную — конфликт замедляет ВР"},{key:"ЭФФЕКТ",desc:"Стоимость конфликта = ВР неконг. − ВР конг."}]},
  STOP:{name:"СТОП-СИГНАЛ",body:"Измеряет торможение реакции с помощью лестничной процедуры. Реагируйте на стрелки. На небольшой доле проб подаётся стоп-сигнал (звук) — попытайтесь подавить ответ. SSRT (время реакции на стоп-сигнал) индексирует скорость торможения.",rules:[{key:"F / J",desc:"Реагируйте на направление стрелки"},{key:"СТОП-СИГНАЛ",desc:"При звуке — НЕ нажимайте"},{key:"ЛЕСТНИЦА",desc:"SSD растёт после успешного торможения, снижается после провала"},{key:"SSRT",desc:"Среднее ВР Go − финальное SSD = SSRT"}]},
  STROOP:{name:"ЦВЕТОВОЙ СТРУП",body:"Классический тест исполнительного контроля. Слова цвета (КРАСНЫЙ, СИНИЙ, ЗЕЛЁНЫЙ) предъявляются в цветных чернилах. Реагируйте на ЦВЕТ ЧЕРНИЛ, игнорируя слово. Неконгруэнтные пробы (слово «КРАСНЫЙ» зелёными чернилами) замедляют ВР — Струп-интерференция.",rules:[{key:"R",desc:"ЧЕРНИЛА КРАСНЫЕ"},{key:"G",desc:"ЧЕРНИЛА ЗЕЛЁНЫЕ"},{key:"B",desc:"ЧЕРНИЛА СИНИЕ"},{key:"ИГНОРИРУЙТЕ",desc:"Реагируйте на ЦВЕТ — не читайте слово"},{key:"ЭФФЕКТ",desc:"Интерференция = ВР неконг. − ВР конг."}]},
  DST:{name:"ОБЪЁМ ЦИФР (WAIS-IV)",body:"Классическая мера вербальной рабочей памяти. Цифры предъявляются по очереди. Прямой объём: повторите в том же порядке. Обратный объём: повторите в обратном порядке. Максимальная длина успешно повторённой последовательности = ваш объём.",rules:[{key:"СЛУШАЙТЕ",desc:"Цифры предъявляются — по 1 с каждая"},{key:"ПРЯМОЙ",desc:"Введите в том же порядке"},{key:"ОБРАТНЫЙ",desc:"Введите в ОБРАТНОМ порядке"},{key:"ЛЕСТНИЦА",desc:"Длина растёт после 2 правильных подряд"},{key:"ОБЪЁМ",desc:"Самая длинная правильно повторённая последовательность"}]},
  FTT:{name:"ПОСТУКИВАНИЕ ПАЛЬЦЕВ",body:"Тест Хальстеда-Рейтана. Стучите по клавише пробела как можно быстрее в течение 10 с. Пять блоков на каждой руке (доминирующая → недоминирующая → чередование). Измеряет моторную скорость, регулярность и двуручную координацию.",rules:[{key:"ПРОБЕЛ",desc:"Стучите как можно быстрее — все 10 с"},{key:"5 БЛОКОВ",desc:"5 испытаний по 10 с на каждое условие"},{key:"ДОМИНИР.",desc:"Сначала доминирующая рука"},{key:"НЕДОМИНИР.",desc:"Затем недоминирующая рука"},{key:"СРЕДНЕЕ",desc:"Среднее число постукиваний за блок — основная мера"}]},
  N400:{name:"СЕМАНТИЧЕСКОЕ ПРАЙМИНГ N400",body:"Компонент N400 индексирует семантическую обработку. Предложения предъявляются по словам, заканчиваясь либо ожидаемым (КОНГРУЭНТНЫМ), либо неожиданным (НЕКОНГРУЭНТНЫМ) словом. Решите, имеет ли финальное слово смысл. Неконгруэнтные финалы вызывают увеличенный N400 в центрально-теменных областях ~400 мс.",rules:[{key:"F / ПРОБЕЛ",desc:"ИМЕЕТ СМЫСЛ — предложение конгруэнтно"},{key:"J",desc:"НЕ ИМЕЕТ СМЫСЛА — финальное слово неожиданно"},{key:"N400",desc:"Центрально-теменный негативный пик ~400 мс"},{key:"БОЛЬШЕ",desc:"N400 больше для семантических нарушений"}]},
  MMN:{name:"НЕГАТИВНОСТЬ РАССОГЛАСОВАНИЯ (MMN)",body:"Пассивная слуховая oddball-парадигма. Тоны 1000 Гц (стандарт, 85 %) и 1200 Гц (девиант, 15 %) предъявляются через наушники. MMN — это автоматический преднамеренный отклик ~150–250 мс над лобно-центральными областями. Внимание не требуется.",rules:[{key:"СЛУШАЙТЕ",desc:"Пассивно слушайте через наушники"},{key:"СТАНДАРТ",desc:"1000 Гц (85 %)"},{key:"ДЕВИАНТ",desc:"1200 Гц (15 %) — отличается по частоте"},{key:"MMN",desc:"Лобно-центральный негатив ~150–250 мс"},{key:"ПРЕДВНИМАТЕЛЬНЫЙ",desc:"Активная задача не нужна — смотрите тихий фильм"}]},
  P600:{name:"СИНТАКСИЧЕСКИЙ P600",body:"Компонент P600 индексирует синтаксическую обработку. Предложения с грамматическими нарушениями (например, неверное согласование числа) или без них предъявляются по словам. Решите, грамматически правильно ли предложение. Нарушения вызывают положительный сдвиг ~500–800 мс в теменных областях.",rules:[{key:"F / ПРОБЕЛ",desc:"ПРАВИЛЬНО — предложение грамматично"},{key:"J",desc:"ОШИБКА — предложение содержит синтаксическую ошибку"},{key:"P600",desc:"Теменной положительный пик 500–800 мс"},{key:"ОТЛИЧИЕ",desc:"P600 отделим от N400 (семантика)"}]},
  ERN:{name:"НЕГАТИВНОСТЬ, СВЯЗАННАЯ С ОШИБКОЙ",body:"Быстрая задача с принуждением выбора вызывает ошибки. Стрелки появляются центрально; нажмите F для влево, J для вправо. Скоростной режим (~400 мс на ответ) гарантирует ошибки. ERN — лобно-центральная негативность 0–100 мс ПОСЛЕ ошибочного ответа, генерируемая передней поясной корой.",rules:[{key:"F",desc:"Стрелка влево"},{key:"J",desc:"Стрелка вправо"},{key:"СКОРОСТЬ",desc:"Реагируйте очень быстро — ошибки желательны"},{key:"ERN",desc:"Лобно-центр. негатив 0–100 мс после ошибки"},{key:"ИСТОЧНИК",desc:"Генерируется передней поясной корой (ACC)"}]},
  CNV:{name:"УСЛОВНАЯ НЕГАТИВНАЯ ВОЛНА",body:"S1 (предупреждение) → S2 (императив). Реагируйте на S2 как можно быстрее. Медленный негативный сдвиг в течение S1–S2 интервала отражает моторную подготовку и временное ожидание. Лобный CNV генерируется передней поясной и дополнительной моторной корой.",rules:[{key:"S1",desc:"Звуковая или зрительная подсказка-предупреждение"},{key:"S2",desc:"Императивный стимул через 1500 мс"},{key:"ПРОБЕЛ",desc:"Реагируйте на S2 как можно быстрее"},{key:"CNV",desc:"Медленный негатив между S1 и S2 над лобно-центр. областями"},{key:"ИСТОЧНИК",desc:"Передняя поясная и SMA"}]},

  // ── ERP-варианты (расширенные) ─────────────────────────
  ORN:{name:"ORN — НЕГАТИВНОСТЬ ОБЪЕКТА",body:"Object-Related Negativity — фронто-центральная негативность ~150–250 мс на одновременный двухтональный комплекс, разделяемый слухом на два слуховых объекта. Отражает анализ слуховой сцены и формирование слуховых объектов.",rules:[{key:"ПАССИВНО",desc:"Слушайте через наушники — активная задача не требуется"},{key:"СТАНДАРТ",desc:"Один тон — единый слуховой объект"},{key:"ДЕВИАНТ",desc:"Расстройка ~3 % — воспринимается как два объекта"},{key:"ORN",desc:"Фронто-центр. негативность ~150–250 мс"}]},
  MMNSP:{name:"MMN РЕЧЬ",body:"Пассивный фонемный контраст: /ба/ стандарт vs /па/ девиант. Преднамеренная речевая MMN, используемая в исследованиях дислексии и развития языка.",rules:[{key:"СЛУШАЙТЕ",desc:"Пассивно через наушники"},{key:"СТАНДАРТ",desc:"/ба/ (85 %)"},{key:"ДЕВИАНТ",desc:"/па/ (15 %) — различается по месту артикуляции"},{key:"MMN",desc:"Лобно-центр. негативность ~150–250 мс"}]},
  PMN:{name:"PMN — ФОНОЛОГИЧЕСКАЯ НЕГАТИВНОСТЬ",body:"Phonological Mismatch Negativity — ранний лево-передний негатив ~270 мс на фонологическое рассогласование в произносимых словах. Отличается от семантического N400; отражает лексический доступ на уровне фонем.",rules:[{key:"СЛУШАЙТЕ",desc:"Слова через наушники"},{key:"ОЖИДАЕМЫЙ",desc:"Финальная фонема согласована с праймом"},{key:"НАРУШЕНИЕ",desc:"Фонологически несовместимый финал"},{key:"PMN",desc:"Лево-передний негатив ~270 мс"}]},
  ELAN:{name:"ELAN — РАННИЙ ЛЕВО-ПЕРЕДНИЙ НЕГАТИВ",body:"Early Left Anterior Negativity — ультра-ранний (100–200 мс) ответ на синтаксическое нарушение, предшествующий P600. Лево-передняя локализация по скальпу. Индексирует автоматическое обнаружение нарушений фразовой структуры.",rules:[{key:"F / ПРОБЕЛ",desc:"ГРАММАТИЧНО"},{key:"J",desc:"НАРУШЕНИЕ — структура фразы нарушена"},{key:"ELAN",desc:"Лево-передний негатив 100–200 мс"},{key:"P600",desc:"Часто сопровождается поздним позитивом 500–800 мс"}]},
  LAN:{name:"LAN — ЛЕВО-ПЕРЕДНИЙ НЕГАТИВ",body:"Left Anterior Negativity — морфосинтаксический ответ ~300–500 мс на нарушения согласования (число, род, падеж). Лево-латерализован; отделяет синтаксическую обработку от семантической. Отличается от N400; специфичен для грамматики.",rules:[{key:"F / ПРОБЕЛ",desc:"ГРАММАТИЧНО"},{key:"J",desc:"ОШИБКА СОГЛАСОВАНИЯ"},{key:"LAN",desc:"Лево-передний негатив ~300–500 мс"},{key:"СПЕЦИФИЧНО",desc:"Грамматика, а не семантика"}]},
  CPS:{name:"CPS — СДВИГ ЗАКРЫТИЯ",body:"Closure Positive Shift — двусторонний позитив на просодических границах фразы в речи ~200–500 мс. Отражает синтаксический разбор интонационных фраз; отличается от синтаксической и семантической обработки.",rules:[{key:"СЛУШАЙТЕ",desc:"Произносимые предложения с просодическими границами"},{key:"ГРАНИЦА",desc:"Интонационная пауза/удлинение"},{key:"CPS",desc:"Двусторонний позитив ~200–500 мс"},{key:"ПАССИВНО",desc:"Активная задача не требуется"}]},
  ASSR:{name:"ASSR 40 Гц",body:"Auditory Steady-State Response — амплитудно-модулированный тон 40 Гц. Мозг фазово синхронизируется на 40 Гц в гамма-диапазоне. Нарушено при шизофрении; индексирует кортикальную ГАМКергическую функцию.",rules:[{key:"СЛУШАЙТЕ",desc:"40 Гц AM-тон через наушники"},{key:"ПАССИВНО",desc:"Активная задача не требуется"},{key:"ОТКЛИК",desc:"Чёткий пик в спектре EEG на 40 Гц"},{key:"КЛИНИКА",desc:"Снижен при шизофрении"}]},
  ABR:{name:"ABR — СТВОЛОВОЙ ОТКЛИК",body:"Auditory Brainstem Response — дальнее поле потенциалов на щелчок. Волны I–V отражают последовательные слуховые ядра ствола мозга. Латентность волны V — клинический золотой стандарт порога слуха и слуховой нейропатии.",rules:[{key:"ЩЕЛЧКИ",desc:"Высокочастотные щелчки через вкладыши"},{key:"ПАССИВНО",desc:"Часто во сне или седации"},{key:"ВОЛНЫ I–V",desc:"5 пиков в первые 10 мс"},{key:"КЛИНИКА",desc:"Латентность V — порог слуха / нейропатия"}]},
  N1P2:{name:"N1-P2 — СЛУХОВОЙ ОТКЛИК",body:"N1-P2 — вертексный негатив ~100 мс и позитив ~200 мс на наступление тона. Амплитуда модулируется вниманием, привыканием и возбуждением. Базовый корковый слуховой ответ.",rules:[{key:"СЛУШАЙТЕ",desc:"Серия тонов через наушники"},{key:"N1",desc:"Вертексный негатив ~100 мс"},{key:"P2",desc:"Вертексный позитив ~200 мс"},{key:"МОДУЛЯЦИЯ",desc:"Усиливается при внимании"}]},
  RON:{name:"RON — НЕГАТИВНОСТЬ ПЕРЕОРИЕНТАЦИИ",body:"Reorienting Negativity — фронто-центральный негатив ~400–600 мс после неожиданного девианта, захватившего внимание. Отражает переориентацию внимания обратно на основной канал после отвлечения новым звуком.",rules:[{key:"СЛУШАЙТЕ",desc:"Активная задача со слуховыми девиантами"},{key:"ЗАХВАТ",desc:"Новый звук захватывает внимание"},{key:"ПЕРЕОРИЕНТАЦИЯ",desc:"Внимание возвращается к задаче"},{key:"RON",desc:"Фронто-центр. негатив ~400–600 мс"}]},
  P1N1:{name:"P1/N1 — ПРОСТРАНСТВЕННОЕ ВНИМАНИЕ",body:"Двусторонняя вспышка с подсказанным пространственным вниманием. P1 усилен ~100 мс над контралатеральной затылочной корой к месту внимания; N1 усилен ~160 мс. Канонический ERP скрытого пространственного внимания (Hillyard et al., 1973).",rules:[{key:"ФИКСАЦИЯ",desc:"Фиксируйте центр — не двигайте глаза"},{key:"ПОДСКАЗКА",desc:"Стрелка влево / вправо"},{key:"ЦЕЛЬ",desc:"Вспышка слева или справа"},{key:"P1/N1",desc:"Контралатер. затылочный, усилен на стороне внимания"}]},
  N170:{name:"N170 — ЛИЦО / ОБЪЕКТ",body:"N170 — затылочно-височный негатив ~170 мс, селективно больший для лиц. Схематические процедурно генерируемые лица и геометрические объекты предъявляются; ответьте «лицо» или «объект». Эффект инверсии лица (больший/поздний N170 для перевёрнутых лиц) — устойчивый маркер конфигуральной обработки лиц.",rules:[{key:"F",desc:"ЛИЦО — стимул является лицом"},{key:"J",desc:"ОБЪЕКТ — стимул является фигурой"},{key:"N170",desc:"Затылочно-височный негатив ~170 мс, больший для лиц"},{key:"ИНВЕРСИЯ",desc:"Перевёрнутые лица дают больший, поздний N170"}]},
  VPP:{name:"VPP — ВЕРТЕКСНЫЙ ПОЗИТИВ",body:"Vertex Positive Potential — позитивный аналог N170 в срединной макушке (Cz); пик ~170 мс на лица; специфичен для лиц. Отражает тот же веретенообразный источник, что и N170, но с противоположной полярностью в Cz.",rules:[{key:"F",desc:"ЛИЦО"},{key:"J",desc:"ОБЪЕКТ"},{key:"VPP",desc:"Позитивный пик в Cz ~170 мс"},{key:"ИСТОЧНИК",desc:"Веретенообразная извилина — тот же диполь, что и N170"}]},
  N2PC:{name:"N2pc — ЗАХВАТ ВНИМАНИЯ",body:"Зрительный поиск с двусторонней раскладкой. Контралатеральный задний негатив ~220–300 мс (PO7/PO8) обозначает скрытый захват внимания целью. Канонический индекс выбора цели в пространственном поиске.",rules:[{key:"ФИКСАЦИЯ",desc:"Фиксируйте центр — не двигайте глаза"},{key:"ПОИСК",desc:"Цель слева или справа среди дистракторов"},{key:"ОТВЕТ",desc:"Свойство цели (цвет/ориентация)"},{key:"N2pc",desc:"Контралатер. задний негатив ~220–300 мс"}]},
  N2B:{name:"N2b — ЦЕЛЕВОЙ N2",body:"N2b — фронто-центральный негатив ~200–300 мс на цели; внимание и категоризация стимула. Отделим от N2pc (пространственного) и N200 (тормозного). Отражает рассогласование между стимулом и шаблоном цели.",rules:[{key:"F",desc:"ЦЕЛЬ — стимул соответствует категории"},{key:"J",desc:"НЕ ЦЕЛЬ"},{key:"N2b",desc:"Фронто-центр. негатив ~200–300 мс"},{key:"ОТЛИЧИЕ",desc:"Не пространственный (как N2pc), не тормозный (как No-Go N2)"}]},
  PD:{name:"Pd — ПОЗИТИВНОСТЬ ДИСТРАКТОРА",body:"Pd — контралатеральный позитив ~200–300 мс на активно подавляемые отвлекающие стимулы. Зеркальный аналог N2pc; отражает нисходящее подавление захвата внимания.",rules:[{key:"ФИКСАЦИЯ",desc:"Фиксируйте центр"},{key:"ДИСТРАКТОР",desc:"Яркий дистрактор требует подавления"},{key:"ОТВЕТ",desc:"На цель в центре или с другой стороны"},{key:"Pd",desc:"Контралатер. позитив на стороне дистрактора ~200–300 мс"}]},
  N300:{name:"N300 — ОБЪЕКТНЫЙ ПРАЙМИНГ",body:"Эмодзи-прайм → цель. Центрально-затылочный негатив ~300 мс меньше для категориально конгруэнтных пар. Отражает раннюю категориальную обработку до семантического N400.",rules:[{key:"ПРАЙМ",desc:"Эмодзи 500 мс"},{key:"ЦЕЛЬ",desc:"Эмодзи — той же или другой категории"},{key:"F",desc:"СОВПАДАЕТ по категории"},{key:"J",desc:"НЕ СОВПАДАЕТ"},{key:"N300",desc:"Центр.-затылочный негатив ~300 мс"}]},
  P100:{name:"P100 — ВСПЫШЕЧНЫЙ ЗРИТЕЛЬНЫЙ ПОТЕНЦИАЛ",body:"Короткие вспышки яркости во всё поле (~80 мс, белое на чёрном фоне) с межстимульным интервалом 1–2 с вызывают P100 — позитивный затылочный пик ~80–130 мс, генерируемый в первичной зрительной коре (V1). Отличается от паттерн-онсет PVEP: вспышечные стимулы активируют более широкие зоны сетчатки и дают более устойчивый, но менее пространственно-специфичный ответ. Включает редкие catch-пробы с приглушёнными вспышками, требующие ответа ПРОБЕЛ.",rules:[{key:"ФИКСАЦИЯ",desc:"Фиксируйте центральный крест — не отводите взгляд"},{key:"ПАССИВНО",desc:"Большинство проб не требуют ответа — только наблюдение"},{key:"CATCH",desc:"ПРОБЕЛ: нажимайте только при ПРИГЛУШЁННОЙ вспышке (10 % проб)"},{key:"P100",desc:"Позитивный затылочный пик ~80–130 мс на O1/Oz/O2"},{key:"V1",desc:"Генерируется в V1; отражает целостность сетчатки и зрительных путей"}]},
  SSVEP:{name:"SSVEP",body:"Steady-State Visual Evoked Potential — мерцающие пятна на 10 Гц (слева) и 15 Гц (справа) дают чёткие спектральные пики в затылочном EEG точно на этих частотах. Применяется в BCI и исследованиях внимания.",rules:[{key:"ФИКСАЦИЯ",desc:"Смотрите на центральный крест"},{key:"ВНИМАНИЕ",desc:"Сосредоточьтесь на одной из мерцающих сторон"},{key:"СПЕКТР",desc:"Пик на 10 Гц / 15 Гц в затылочном EEG"},{key:"BCI",desc:"Селективное внимание модулирует амплитуду"}]},
  ERAN:{name:"ERAN — РАННИЙ ПРАВО-ПЕРЕДНИЙ НЕГАТИВ",body:"Early Right Anterior Negativity — нарушение музыкального синтаксиса ~150–200 мс; право-латерализован; обнаружение неуместного аккорда; аналог ELAN для языкового синтаксиса; чувствителен к музыкальному обучению.",rules:[{key:"СЛУШАЙТЕ",desc:"Аккордовые последовательности через наушники"},{key:"ОЖИДАЕМЫЙ",desc:"Тоника или субдоминанта"},{key:"НАРУШЕНИЕ",desc:"Неаполитанский аккорд / неуместная тональность"},{key:"ERAN",desc:"Право-передний негатив ~150–200 мс"}]},
  BP:{name:"ПОТЕНЦИАЛ ГОТОВНОСТИ",body:"Bereitschaftspotential — самонаправляемые добровольные нажатия. Медленный негативный наклон над Cz, начинающийся ~1500 мс ДО движения. Парадигма свободной воли Либета.",rules:[{key:"ПРОБЕЛ",desc:"Нажимайте по собственному выбору — нерегулярно"},{key:"ИНТЕРВАЛ",desc:"≥4 с между нажатиями — самостоятельный темп"},{key:"BP",desc:"Медленный негатив над Cz, начало ~1500 мс до движения"},{key:"ЛИБЕТ",desc:"Парадигма «свободной воли»"}]},
  LRP:{name:"LRP — ЛАТЕРАЛИЗОВАННЫЙ ПОТЕНЦИАЛ ГОТОВНОСТИ",body:"Lateralized Readiness Potential — задача «стрелка влево/вправо». Контралатеральный моторный негатив ~300–500 мс индексирует подготовку движения, специфичную для руки.",rules:[{key:"F",desc:"Стрелка влево → левая рука"},{key:"J",desc:"Стрелка вправо → правая рука"},{key:"LRP",desc:"Контралатер. моторно-корковый негатив 300–500 мс"},{key:"МАРКЕР",desc:"Готовность к ручному ответу"}]},
  CNVW:{name:"CNV — СИГНАЛ ПРЕДУПРЕЖДЕНИЯ",body:"S1 (предупреждение) → S2 (императив) с интервалом 1000 мс. Медленный негатив CNV нарастает между ними над лобной корой; амплитуда отражает моторную подготовку и временное ожидание. Отличается от потенциала готовности.",rules:[{key:"S1",desc:"Тон-предупреждение"},{key:"S2",desc:"Императивный стимул через 1000 мс"},{key:"ПРОБЕЛ",desc:"Реагируйте на S2 как можно быстрее"},{key:"CNV",desc:"Медленный негатив между S1 и S2 над лобной корой"}]},
  PE:{name:"Pe — ПОЗИТИВНОСТЬ ОШИБКИ",body:"Error Positivity — центрально-теменной позитив ~200–400 мс после ERN. Отражает сознательное осознание ошибки; отделим от ERN при анозогнозии; опосредован передней поясной и инсулярной корой.",rules:[{key:"F / J",desc:"Быстрый принудительный выбор"},{key:"ОШИБКА",desc:"После ошибочного ответа"},{key:"ERN",desc:"Лобный негатив 0–100 мс"},{key:"Pe",desc:"Центр.-теменной позитив 200–400 мс — осознание ошибки"}]},
  N200:{name:"N200 / NoGo N2",body:"Двухальтернативная задача Go/No-Go; фронто-центральный негативный пик ~200 мс, селективно больший в No-Go пробах — отражает активное подавление преобладающей реакции.",rules:[{key:"F / ПРОБЕЛ",desc:"GO — реагируйте на ЗОЛОТОЙ круг"},{key:"СТОП",desc:"NO-GO — не нажимайте на СИНИЙ круг"},{key:"N200",desc:"Фронто-центр. негативный пик ~200 мс, больший в No-Go"},{key:"СООТНОШ.",desc:"75 % Go · 25 % No-Go"}]},
  MFN:{name:"MFN — МЕДИАЛЬНО-ЛОБНЫЙ НЕГАТИВ",body:"Medial Frontal Negativity — фронто-центр. негатив ~200–350 мс на конфликт реакции и рассогласование предсказания в немоторных контекстах. Родственен N2-семейству; чувствителен к неконгруэнтности и нарушению ожидания.",rules:[{key:"ОЖИДАНИЕ",desc:"Стимул-предсказатель"},{key:"РАССОГЛАС.",desc:"Финал нарушает предсказание"},{key:"MFN",desc:"Фронто-центр. негатив ~200–350 мс"},{key:"СЕМЕЙСТВО N2",desc:"Связан с ERN, N200"}]},
  P3A:{name:"P3a — НОВИЗНА",body:"Трёхстимульный oddball — отделяет P3a (лобная новизна) от P3b (теменное обнаружение цели). Редкие новые / непредсказуемые звуки вызывают P3a; цели вызывают P3b.",rules:[{key:"СТАНДАРТ",desc:"1000 Гц (80 %)"},{key:"ЦЕЛЬ",desc:"2000 Гц (10 %) — нажмите ПРОБЕЛ"},{key:"НОВЫЙ",desc:"Случайные новые звуки (10 %) — игнорируйте"},{key:"P3a",desc:"Лобный позитив на новые звуки ~250–350 мс"},{key:"P3b",desc:"Теменной позитив на цели ~300–500 мс"}]},
  REWP:{name:"RewP / FRN",body:"Reward Positivity — связанный с обратной связью ERP ~250 мс; выигрыш вызывает позитив, проигрыш — негатив; орбитофронтальный источник. Используется в исследованиях депрессии, зависимостей и принятия решений.",rules:[{key:"ВЫБОР",desc:"Выберите одну из двух дверей"},{key:"ОБРАТНАЯ СВЯЗЬ",desc:"Выигрыш или проигрыш через 600 мс"},{key:"RewP",desc:"Фронто-центр. позитив ~250 мс на выигрыш"},{key:"FRN",desc:"Тот же временной интервал — негатив на проигрыш"}]},
  LPC:{name:"LPC — ПОЗДНИЙ ПОЗИТИВНЫЙ КОМПОНЕНТ",body:"Late Positive Component — теменной позитив 500–800 мс при эпизодическом опознании. Отражает воспоминание (recollection); отделим от знакомости (FN400); большой для надёжно вспомненных пунктов.",rules:[{key:"СТАРЫЙ",desc:"Пункт изучался ранее"},{key:"НОВЫЙ",desc:"Пункт не изучался"},{key:"LPC",desc:"Теменной позитив 500–800 мс"},{key:"ВОСПОМИНАНИЕ",desc:"Больше для надёжных «помню»-ответов"}]},
  FRN:{name:"FRN — НЕГАТИВНОСТЬ ОБРАТНОЙ СВЯЗИ",body:"Feedback-Related Negativity — фронто-центр. негатив ~200–300 мс после отрицательных исходов; сигнал ошибки предсказания вознаграждения; отличается от ERN (своих ошибок); чувствителен к депрессии и зависимостям.",rules:[{key:"ВЫБОР",desc:"Угадайте, какая дверь выиграет"},{key:"ОБРАТНАЯ СВЯЗЬ",desc:"Выигрыш или проигрыш через 600 мс"},{key:"FRN",desc:"Фронто-центр. негатив ~200–300 мс на проигрыш"},{key:"СИГНАЛ",desc:"Ошибка предсказания вознаграждения"}]},
  SCP:{name:"SCP — МЕДЛЕННЫЕ ПОТЕНЦИАЛЫ",body:"Slow Cortical Potentials — постоянные DC-сдвиги при когнитивной нагрузке. Используются в нейробиоуправлении и BCI. Произвольная регуляция SCP — основа классических BCI Бирбаумера.",rules:[{key:"НАГРУЗКА",desc:"Удерживайте умственное усилие в течение блока"},{key:"ОТДЫХ",desc:"Расслабьтесь между блоками"},{key:"SCP",desc:"Медленный DC-сдвиг — секунды"},{key:"BCI",desc:"Произвольная регуляция возможна с обучением"}]},
  CDA:{name:"CDA — КОНТРАЛАТЕРАЛЬНАЯ ОТСРОЧЕННАЯ АКТИВНОСТЬ",body:"Contralateral Delayed Activity — устойчивый контралатеральный негатив над задней корой во время удержания зрительных пунктов в рабочей памяти. Амплитуда выходит на плато при достижении ёмкости рабочей памяти (~3–4 пункта).",rules:[{key:"ФИКСАЦИЯ",desc:"Фиксируйте центр"},{key:"ИЗУЧЕНИЕ",desc:"Запомните цветные квадраты с одной стороны"},{key:"УДЕРЖАНИЕ",desc:"1 с задержки"},{key:"CDA",desc:"Контралатер. задний негатив во время задержки"},{key:"ЁМКОСТЬ",desc:"Плато при ~3–4 пунктах = ёмкость РП"}]},
  THALPHA:{name:"ТЕТА / АЛЬФА",body:"Спонтанные ритмы EEG в покое. Лобная тета (4–8 Гц) растёт при когнитивной нагрузке; затылочная альфа (8–13 Гц) преобладает при закрытых глазах. Базовый показатель кортикального состояния.",rules:[{key:"ГЛАЗА",desc:"Чередуйте «открытые» и «закрытые»"},{key:"АЛЬФА",desc:"Затылочный пик 8–13 Гц при закрытых глазах"},{key:"ТЕТА",desc:"Лобная 4–8 Гц при нагрузке"},{key:"СОСТОЯНИЕ",desc:"Альфа-блокада при открытии глаз"}]},
  P50:{name:"P50 — СЕНСОРНОЕ ФИЛЬТРОВАНИЕ",body:"Парадигма двойного щелчка: два слуховых щелчка с интервалом 500 мс. P50 на S2 в норме подавлен (~50 % от S1). Отношение S2/S1 индексирует сенсорное фильтрование; нарушено при шизофрении.",rules:[{key:"ЩЕЛЧКИ",desc:"Пары щелчков с интервалом 500 мс через наушники"},{key:"ПАССИВНО",desc:"Активная задача не требуется"},{key:"P50",desc:"Позитивный пик ~50 мс на каждый щелчок"},{key:"ФИЛЬТР",desc:"S2/S1 в норме <0,5"}]},
  N100:{name:"N100 / P200",body:"Слуховой N100 — вертексный негатив ~100 мс на тоны; P200 — позитив ~200 мс. Амплитуда отражает интенсивность и привыкание. Базовый кортикальный слуховой комплекс.",rules:[{key:"СЛУШАЙТЕ",desc:"Серия тонов через наушники"},{key:"N100",desc:"Вертексный негатив ~100 мс"},{key:"P200",desc:"Вертексный позитив ~200 мс"},{key:"ПРИВЫКАНИЕ",desc:"Амплитуда снижается при повторении"}]},
  LDAEP:{name:"LDAEP — ИНТЕНСИВНОСТНАЯ ЗАВИСИМОСТЬ",body:"Loudness Dependence of Auditory Evoked Potentials — наклон N1/P2 амплитуды по громкости тонов. Сильный LDAEP-наклон коррелирует с низкой серотонинергической активностью; используется в исследованиях депрессии.",rules:[{key:"СЛУШАЙТЕ",desc:"Тоны на 5 уровнях громкости"},{key:"ПАССИВНО",desc:"Активная задача не требуется"},{key:"НАКЛОН",desc:"N1/P2 амплитуда vs громкость"},{key:"СЕРОТОНИН",desc:"Сильный наклон → низкий 5-HT"}]},
  C1:{name:"C1 — РАННИЙ ЗРИТЕЛЬНЫЙ КОМПОНЕНТ",body:"Самый ранний зрительный ERP, ~60–100 мс. Генерируется в V1 (первичная зрительная кора). Полярность зависит от поля зрения: позитив для нижнего поля, негатив для верхнего. Маркер ретинотопической обработки.",rules:[{key:"ФИКСАЦИЯ",desc:"Фиксируйте центр"},{key:"ПОЛЕ",desc:"Стимулы в верхнем или нижнем поле зрения"},{key:"C1",desc:"Затылочный пик ~60–100 мс"},{key:"ИСТОЧНИК",desc:"V1 — первичная зрительная кора"}]},

  // ── Сенсорные тесты ─────────────────────────────────────
  SNELLEN:{name:"ТАБЛИЦА СНЕЛЛЕНА",body:"Скрининг остроты зрения. Стандартная таблица Снеллена с буквами уменьшающегося размера. Прочитайте каждую строку с расстояния просмотра; самая маленькая правильно прочитанная строка определяет остроту в формате 20/X (или 6/X в метрической системе).",rules:[{key:"РАССТОЯНИЕ",desc:"Сядьте примерно в 3 м от экрана"},{key:"ЧИТАЙТЕ",desc:"Произносите буквы в каждой строке"},{key:"ПОРОГ",desc:"Самая маленькая правильно прочитанная строка"},{key:"СКРИНИНГ",desc:"Не заменяет осмотр окулиста"}]},
  ISHIHARA:{name:"ТАБЛИЦЫ ИШИХАРЫ",body:"Скрининг цветового зрения для красно-зелёной аномалии. Числа, скрытые в точечных узорах; видны нормотрихроматам, но не лицам с протанопией или дейтеранопией. Классический скрининговый инструмент.",rules:[{key:"СМОТРИТЕ",desc:"Идентифицируйте число в каждой пластине"},{key:"ВРЕМЯ",desc:"~3 с на пластину"},{key:"R/G ДЕФИЦИТ",desc:"Протан / дейтан — самые частые формы"},{key:"СКРИНИНГ",desc:"Не заменяет полное исследование цветового зрения"}]},
  SEASHORE:{name:"ТЕСТ СИШОРА — РИТМ",body:"Тест ритмических способностей Сишора. Слушайте пары ритмических последовательностей; решите, одинаковы они или различны. Измеряет слуховую различительную способность, особенно ритмическую обработку. Используется при оценке музыкальных способностей и амузии.",rules:[{key:"СЛУШАЙТЕ",desc:"Пара ритмов через наушники"},{key:"F",desc:"ОДИНАКОВЫЕ"},{key:"J",desc:"РАЗЛИЧНЫЕ"},{key:"АМУЗИЯ",desc:"Сниженная производительность при врождённой амузии"}]},
  AUDIOM:{name:"АУДИОМЕТРИЯ — ЧИСТЫЙ ТОН",body:"Скрининг порога слуха. Тоны представлены на разных частотах (250 Гц – 8 кГц) и интенсивностях; нажимайте при обнаружении. Аудиограмма строит порог по частотам — основной показатель состояния слуха.",rules:[{key:"НАУШНИКИ",desc:"Откалиброванные наушники обязательны"},{key:"ТИХАЯ КОМНАТА",desc:"Минимизируйте фоновый шум"},{key:"ПРОБЕЛ",desc:"Нажимайте при каждом обнаруженном тоне"},{key:"ПОРОГ",desc:"Самый тихий обнаруженный уровень на каждой частоте"}]},
  GABOR:{name:"ГАБОР — КОНТРАСТНАЯ ЧУВСТВИТЕЛЬНОСТЬ",body:"Габоровские пятна (синусоидальные решётки в гауссовой огибающей) при варьируемом контрасте. Лестничный метод определяет порог обнаружения. Классический инструмент для измерения функции контрастной чувствительности.",rules:[{key:"ФИКСАЦИЯ",desc:"Фиксируйте центральный крест"},{key:"F / J",desc:"Решётка слева или справа"},{key:"ЛЕСТНИЦА",desc:"Контраст адаптируется к производительности"},{key:"ПОРОГ",desc:"~75 % правильных ответов"}]},

  // ── Внимание и бдительность ─────────────────────────────
  CPT:{name:"CPT — НЕПРЕРЫВНАЯ РАБОТА",body:"Continuous Performance Test (CPT-AX) — поддержание внимания/бдительности. Буквы предъявляются непрерывно; цель — X, следующая после A. Обнаруживает эффекты СДВГ и утомления после ЧМТ во времени.",rules:[{key:"ПРОБЕЛ",desc:"Нажмите только когда X следует сразу после A"},{key:"ИГНОРИРУЙТЕ",desc:"Все остальные буквы и пары"},{key:"ОШИБКИ",desc:"Пропуски (невнимательность) и комиссии (импульсивность)"},{key:"ДЛИТЕЛЬНОСТЬ",desc:"~10–15 мин для обнаружения снижения бдительности"}]},
  ATTBLINK:{name:"МИГАНИЕ ВНИМАНИЯ",body:"RSVP поток букв; T2 пропускается, когда она следует через 200–500 мс после T1; временное окно невнимания после истощения ресурсов. Классический индекс временных пределов внимания.",rules:[{key:"СМОТРИТЕ",desc:"Быстрый поток букв в центре"},{key:"T1",desc:"Первая цель — белая буква"},{key:"T2",desc:"Вторая цель — буква X"},{key:"МИГАНИЕ",desc:"T2 пропускается при лаге 200–500 мс"}]},
  DUALTASK:{name:"ДВОЙНАЯ ЗАДАЧА",body:"Одновременный мониторинг букв + пространственное отслеживание; стоимость двойной задачи индексирует распределённое внимание и центральное узкое место. Показатель емкости внимания.",rules:[{key:"ЗАДАЧА 1",desc:"Идентифицируйте целевые буквы"},{key:"ЗАДАЧА 2",desc:"Отслеживайте движущуюся точку"},{key:"СТОИМОСТЬ",desc:"Производительность двойной задачи vs одиночной"},{key:"УЗКОЕ МЕСТО",desc:"Отражает ограничение центральной обработки"}]},
  SART:{name:"SART — БДИТЕЛЬНОСТЬ",body:"Sustained Attention to Response Task — реагируйте на каждую цифру, кроме 3. Частота комиссий индексирует блуждание ума; чувствителен к ЧМТ и СДВГ. Парадигма «отказа от реакции».",rules:[{key:"ПРОБЕЛ",desc:"Нажимайте на каждую цифру"},{key:"СТОП",desc:"НЕ нажимайте на 3"},{key:"КОМИССИИ",desc:"Ошибки на 3 = блуждание ума"},{key:"ДЛИТЕЛЬНОСТЬ",desc:"~5 мин — спады бдительности"}]},
  UFOV:{name:"UFOV — ПОЛЕЗНОЕ ПОЛЕ ЗРЕНИЯ",body:"Useful Field of View — центральная дискриминация + периферическое обнаружение; распределённое внимание; предиктор безопасности вождения; чувствителен к старению и ЧМТ.",rules:[{key:"ЦЕНТР",desc:"Идентифицируйте центральный стимул"},{key:"ПЕРИФЕРИЯ",desc:"Локализуйте периферический стимул"},{key:"ВРЕМЯ",desc:"Краткие предъявления (~100 мс)"},{key:"ВОЖДЕНИЕ",desc:"Сниженный UFOV → повышенный риск аварий"}]},

  // ── Рабочая память и обработка ──────────────────────────
  SPATWM:{name:"ПРОСТРАНСТВЕННАЯ РАБОЧАЯ ПАМЯТЬ",body:"Запомните места подсвеченных квадратов через задержку; отличается от вербального объёма; аналог постукивания блоков Корси. Тестирует право-теменную систему рабочей памяти.",rules:[{key:"ИЗУЧЕНИЕ",desc:"Квадраты подсвечиваются последовательно"},{key:"ЗАДЕРЖКА",desc:"Короткий интервал удержания"},{key:"ВОСПРОИЗВЕДЕНИЕ",desc:"Кликните те же квадраты в порядке"},{key:"ОБЪЁМ",desc:"Самая длинная правильная последовательность"}]},
  DIGCAN:{name:"ВЫЧЁРКИВАНИЕ ЦИФР",body:"Просматривайте сетку случайных цифр и отмечайте каждую целевую (например, 3 и 7); общее число правильных, пропусков, ложных тревог и время — показатели устойчивого внимания и скорости обработки.",rules:[{key:"КЛИК",desc:"Кликайте на цели (3 и 7)"},{key:"ИГНОРИРУЙТЕ",desc:"Все остальные цифры"},{key:"ВРЕМЯ",desc:"Работайте как можно быстрее"},{key:"МЕТРИКИ",desc:"Точность, пропуски, ложные тревоги, время"}]},
  STAR:{name:"ВЫЧЁРКИВАНИЕ ЗВЁЗД",body:"Найдите и кликните каждую маленькую целевую звезду среди дистракторов (большие звёзды, буквы, короткие слова); всего 52 цели. Классический скрининг Behavioural Inattention Test (BIT) на лево-сторонний гемипространственный неглект (постинсультный, поражения). Оценка: цели найдены, асимметрия (Л vs П), время.",rules:[{key:"КЛИК",desc:"Кликайте только на маленькие звёзды"},{key:"ИГНОРИРУЙТЕ",desc:"Большие звёзды, буквы, слова"},{key:"АСИММЕТРИЯ",desc:"Лево-/право-сторонняя разница в найденных целях"},{key:"НЕГЛЕКТ",desc:"Цели на одной стороне постоянно пропускаются"}]},
  TASKSWITCH:{name:"ПЕРЕКЛЮЧЕНИЕ ЗАДАЧ",body:"Чередуйте две правила классификации с подсказкой; стоимость переключения = замедление ВР в пробах переключения; измеряет когнитивную гибкость и реконфигурацию задачи.",rules:[{key:"ПОДСКАЗКА",desc:"Цвет рамки указывает текущее правило"},{key:"ПРАВИЛО 1",desc:"Классифицируйте по чётности"},{key:"ПРАВИЛО 2",desc:"Классифицируйте по величине"},{key:"СТОИМОСТЬ",desc:"ВР переключение − ВР повтор"}]},
  EMOTSTROOP:{name:"ЭМОЦИОНАЛЬНЫЙ СТРУП",body:"Называйте цвет чернил эмоциональных vs нейтральных слов; аффективная интерференция замедляет ВР для эмоциональных слов; измеряет внимательное смещение к угрозе или травмо-релевантному содержанию.",rules:[{key:"ЦВЕТ",desc:"Реагируйте на ЦВЕТ ЧЕРНИЛ"},{key:"ИГНОРИРУЙТЕ",desc:"Значение слова"},{key:"ЭМОЦИЯ",desc:"Угрожающие/негативные слова замедляют ВР"},{key:"СМЕЩЕНИЕ",desc:"Маркер тревоги, ПТСР, фобий"}]},
  SUBITIZE:{name:"СУБИТАЦИЯ",body:"Быстро перечислите 1–8 точек; плоский наклон ВР 1–4 (субитация) vs крутой наклон 4+ (счёт); скорость обработки числовых количеств. Различает дочисловое и числовое мышление.",rules:[{key:"СМОТРИТЕ",desc:"Точки появляются ненадолго"},{key:"ОТВЕТ",desc:"Введите количество"},{key:"СУБИТАЦИЯ",desc:"1–4: быстрое, плоское ВР"},{key:"СЧЁТ",desc:"5+: ВР растёт линейно"}]},

  // ── Исполнительные функции ──────────────────────────────
  TOL:{name:"БАШНЯ ЛОНДОНА",body:"Перемещайте цветные диски, чтобы достичь целевой конфигурации за минимальное число ходов; измеряет исполнительное планирование, префронтальное торможение и решение задач; чувствителен к дисфункции лобной доли.",rules:[{key:"ЦЕЛЬ",desc:"Достигните показанной конфигурации"},{key:"МИНИМУМ",desc:"Используйте минимальное число ходов"},{key:"ПРАВИЛА",desc:"Один диск за ход; стержни ограничены по ёмкости"},{key:"ПЛАНИРОВАНИЕ",desc:"Планируйте до начала движения"}]},
  MATRIX:{name:"МАТРИЧНОЕ РАССУЖДЕНИЕ",body:"Завершите шаблон; невербальный текучий интеллект; культурно-нейтрален; чувствителен к глобальному когнитивному снижению. Аналог матриц Равена.",rules:[{key:"СМОТРИТЕ",desc:"Матрица 3×3 с одной пропущенной клеткой"},{key:"ВЫБОР",desc:"Выберите элемент, завершающий шаблон"},{key:"ПРАВИЛА",desc:"Строки/столбцы следуют логическим преобразованиям"},{key:"Gf",desc:"Маркер текучего интеллекта"}]},
  META:{name:"МЕТАКОГНИЦИЯ",body:"Оценки уверенности по решениям памяти; d-прайм 2-го типа; эффективность метакогниции; нарушена при шизофрении и анозогнозии. Измеряет связь между точностью и уверенностью.",rules:[{key:"ИЗУЧЕНИЕ",desc:"Запомните слова"},{key:"ТЕСТ",desc:"СТАРОЕ или НОВОЕ?"},{key:"УВЕРЕННОСТЬ",desc:"Оцените уверенность 1–6"},{key:"d′2",desc:"Разница ВР для уверенных правильных vs ошибок"}]},

  // ── Скорость обработки ──────────────────────────────────
  SYMSEARCH:{name:"ПОИСК СИМВОЛОВ",body:"Subtest WAIS-IV — просматривайте строку символов и решайте, появляется ли любая из двух целей; индекс скорости обработки наряду с кодированием цифра-символ.",rules:[{key:"ЦЕЛЬ",desc:"Два целевых символа слева"},{key:"ПОИСК",desc:"5 символов справа"},{key:"ДА / НЕТ",desc:"Любой целевой появляется среди 5?"},{key:"СКОРОСТЬ",desc:"120 с — сделайте как можно больше"}]},
  PASAT:{name:"PASAT",body:"Paced Auditory Serial Addition Test — одиночные цифры предъявляются с фиксированной скоростью; добавьте каждую новую цифру к непосредственно предыдущей; измеряет разделённое внимание, обновление рабочей памяти и скорость обработки; стандарт в оценке РС и ЧМТ.",rules:[{key:"СЛУШАЙТЕ",desc:"Одиночные цифры через наушники"},{key:"СЛОЖИТЕ",desc:"Добавьте текущую к ПРЕДЫДУЩЕЙ (не к сумме)"},{key:"ТЕМП",desc:"Цифра каждые 3 с (или 2 с)"},{key:"СТАНДАРТ",desc:"Используется в МРТ-РС шкале"}]},

  // ── Память ──────────────────────────────────────────────
  RAVLT:{name:"RAVLT — ВЕРБАЛЬНОЕ ЗАУЧИВАНИЕ",body:"Rey Auditory Verbal Learning Test — 15-словный список читается 5 раз; интерферирующий список; немедленное припоминание; 20-минутное отсроченное припоминание; кривая научения, эффекты первичности/недавности, проактивная интерференция, удержание — золотой стандарт оценки вербальной памяти.",rules:[{key:"5 ПРОБ",desc:"Тот же список 5 раз"},{key:"ИНТЕРФЕР.",desc:"Список B — однократно, дистрактор"},{key:"ОТСРОЧКА",desc:"Припоминание через 20 мин"},{key:"УЗНАВАНИЕ",desc:"Финальная проба узнавания"}]},
  CVLT:{name:"CVLT — КАЛИФОРНИЙСКОЕ ЗАУЧИВАНИЕ",body:"California Verbal Learning Test — 16-словный «список покупок» из 4 семантических категорий; 5 проб научения; короткое и длинное отсроченное свободное и направленное припоминание; узнавание; измеряет кривую научения, семантическую кластеризацию, серийную позицию и удержание.",rules:[{key:"5 ПРОБ",desc:"Тот же список 5 раз"},{key:"КАТЕГОРИИ",desc:"4 семантические категории, скрыто"},{key:"КЛАСТЕРИЗАЦИЯ",desc:"Спонтанная семантическая группировка"},{key:"ПРИЗНАКИ",desc:"Направленное припоминание по категории"}]},
  PAL:{name:"ОБУЧЕНИЕ ПАРНЫХ АССОЦИАЦИЙ",body:"Изучите пары слово-слово; направленное припоминание; измеряет гиппокампальное ассоциативное связывание; чувствительно к ранней болезни Альцгеймера.",rules:[{key:"ИЗУЧЕНИЕ",desc:"Пары слов представлены вместе"},{key:"ТЕСТ",desc:"Первое слово → введите второе"},{key:"ГИППОКАМП",desc:"Связывание зависит от MTL"},{key:"AD-МАРКЕР",desc:"Раннее снижение при болезни Альцгеймера"}]},
  SRCMEM:{name:"ПАМЯТЬ ИСТОЧНИКА",body:"Запомните не только что, но и где вы это узнали; функция лобной доли; отделяет воспоминание от знакомости. Тест проверяет не сам пункт, а его контекст.",rules:[{key:"ИЗУЧЕНИЕ",desc:"Слова в двух разных шрифтах/цветах"},{key:"СТАРОЕ?",desc:"Сначала: видели слово?"},{key:"ИСТОЧНИК?",desc:"Затем: какой шрифт/цвет?"},{key:"ЛОБНАЯ",desc:"Лобные поражения снижают память источника"}]},
  PROSMEM:{name:"ПРОСПЕКТИВНАЯ ПАМЯТЬ",body:"Помните, что нужно нажать клавишу, когда появится цель во время текущей задачи; часто нарушена при ЧМТ и старении. «Память о намерениях».",rules:[{key:"ТЕКУЩАЯ",desc:"Выполняйте лексическое решение"},{key:"НАМЕРЕНИЕ",desc:"При появлении «КОРАБЛЬ» — нажмите Q"},{key:"СЛУЧАЙ",desc:"Цель встречается редко (~5 %)"},{key:"ПАМЯТЬ ПЛАНОВ",desc:"Префронтальная функция"}]},
  SEMFLUENCY:{name:"СЕМАНТИЧЕСКАЯ БЕГЛОСТЬ",body:"Назовите как можно больше животных/еды/инструментов за 60 с; общая сумма и кластерные показатели индексируют целостность лобной/височной долей.",rules:[{key:"60 СЕКУНД",desc:"Назовите столько, сколько сможете"},{key:"КАТЕГОРИЯ",desc:"Например: животные"},{key:"КЛАСТЕРЫ",desc:"Семантически связанные группы"},{key:"ВЕТВЛЕНИЕ",desc:"Переходы между подкатегориями"}]},
  PHONFLUE:{name:"ФОНЕТИЧЕСКАЯ БЕГЛОСТЬ (FAS)",body:"Назовите как можно больше слов, начинающихся на F, затем A, затем S, за 60 с каждое; фонетическая беглость индексирует целостность лобной доли и скорость лексического доступа; отличается от семантической беглости.",rules:[{key:"60 СЕКУНД",desc:"Каждая буква"},{key:"БУКВЫ",desc:"F, затем A, затем S"},{key:"ИСКЛЮЧЕНИЯ",desc:"Без имён собственных и однокоренных"},{key:"ЛОБНАЯ",desc:"Чувствительна к лобной дисфункции"}]},

  // ── Язык и лексикон ─────────────────────────────────────
  LEXDEC:{name:"ЛЕКСИЧЕСКОЕ РЕШЕНИЕ",body:"Слово vs не-слово как можно быстрее; ВР зависит от частоты слова, образности и размера орфографического соседства. Стандартная задача психолингвистики.",rules:[{key:"F",desc:"СЛОВО"},{key:"J",desc:"НЕ-СЛОВО"},{key:"СКОРОСТЬ",desc:"Реагируйте быстро"},{key:"ЧАСТОТА",desc:"Высокочастотные слова → быстрее"}]},
  BNT:{name:"БОСТОНСКИЙ ТЕСТ НАЗЫВАНИЯ",body:"Назовите штриховые рисунки объектов; градуированная сложность; чувствителен к повреждению височной доли и болезни Альцгеймера. Гольд-стандарт оценки называния.",rules:[{key:"МИКРОФОН",desc:"Включите микрофон"},{key:"НАЗОВИТЕ",desc:"Произнесите имя объекта вслух"},{key:"ГРАДУАЦИЯ",desc:"От лёгких к сложным элементам"},{key:"КРИТЕРИЙ",desc:"6 неудач подряд = остановка"}]},

  // ── Зрительно-пространственные ──────────────────────────
  JLO:{name:"ОЦЕНКА ОРИЕНТАЦИИ ЛИНИЙ",body:"Judgment of Line Orientation (JLO, Бентон) — сопоставьте два угловых отрезка с эталонным веером из 11 линий; измеряет зрительно-пространственное восприятие; функция правой теменной доли; чувствителен к гемипространственному неглекту и теменным поражениям.",rules:[{key:"ВЕЕР",desc:"11 линий, пронумерованных 1–11"},{key:"СОПОСТАВЬТЕ",desc:"Найдите 2 линии вверху, соответствующие веером"},{key:"ТЕМЕННАЯ",desc:"Чувствителен к правой теменной коре"},{key:"НЕГЛЕКТ",desc:"Систематическая лево-сторонняя ошибка"}]},
  TOJ:{name:"СУЖДЕНИЕ О ВРЕМЕННОМ ПОРЯДКЕ",body:"Какой стимул появился первым; оценка JND через лестничный метод; чувствителен к базальным ганглиям и мозжечковой дисфункции времени. Маркер хронестезии.",rules:[{key:"ДВА СТИМУЛА",desc:"Слева и справа с небольшим SOA"},{key:"F",desc:"СНАЧАЛА ЛЕВЫЙ"},{key:"J",desc:"СНАЧАЛА ПРАВЫЙ"},{key:"ЛЕСТНИЦА",desc:"SOA сходится к 75 % точности"}]},

  // ── Социальная когниция ─────────────────────────────────
  RMET:{name:"ЧТЕНИЕ РАЗУМА ПО ГЛАЗАМ",body:"Reading the Mind in the Eyes (Baron-Cohen) — выведите ментальное состояние по фотографиям области глаз; 4-альтернативный принудительный выбор; измеряет теорию разума / социальную когницию; нарушено при РАС, алекситимии и лобных поражениях.",rules:[{key:"СМОТРИТЕ",desc:"Только область глаз"},{key:"4 ВАРИАНТА",desc:"Выберите одно из 4 ментальных состояний"},{key:"ToM",desc:"Теория разума / ментализация"},{key:"АУТИЗМ",desc:"Сниженная производительность при РАС"}]},
  FER:{name:"РАСПОЗНАВАНИЕ ЛИЦЕВЫХ ЭМОЦИЙ",body:"Идентифицируйте шесть базовых эмоций; аффективная обработка, зависящая от миндалины; нарушена при поражениях миндалины и депрессии.",rules:[{key:"СМОТРИТЕ",desc:"Лицо выражает одну из 6 эмоций"},{key:"6 ЭМОЦИЙ",desc:"Радость, печаль, гнев, страх, отвращение, удивление"},{key:"МИНДАЛИНА",desc:"Особенно страх и гнев"},{key:"ДЕПРЕССИЯ",desc:"Смещение к негативным эмоциям"}]},

  // ── Принятие решений ────────────────────────────────────
  IGT:{name:"ИГРОВАЯ ЗАДАЧА АЙОВЫ",body:"Выбирайте из четырёх колод; благоприятные (C/D) vs неблагоприятные (A/B); измеряет функцию соматического маркера / вентромедиальной ПФК; нарушена при зависимости, поражениях vmPFC и психопатии.",rules:[{key:"4 КОЛОДЫ",desc:"A, B, C, D — скрытые распределения"},{key:"РЕШЕНИЕ",desc:"Выберите одну колоду за ход"},{key:"ОБРАТНАЯ СВЯЗЬ",desc:"Выигрыш + случайная потеря"},{key:"СОМ. МАРКЕР",desc:"Здоровые сдвигаются к C/D со временем"}]},

  // ── Скрининговые шкалы ──────────────────────────────────
  MOCA:{name:"MoCA — МОНРЕАЛЬСКАЯ КОГН. ОЦЕНКА",body:"Montreal Cognitive Assessment — наиболее широко используемый краткий инструмент когнитивного скрининга, разработанный Nasreddine et al. (2005). Оценивает десять когнитивных областей за ~10 минут. Максимум — 30 баллов; <26 — положительный скрининг на лёгкое когнитивное нарушение.",rules:[{key:"ОБЛАСТИ",desc:"10 областей: зрительно-пространств., наименование, память, внимание, язык, абстракция, ориентация"},{key:"БАЛЛ",desc:"Всего /30 — ≥26 в норме; <26 положительный"},{key:"ВРЕМЯ",desc:"~10 минут"},{key:"ОБРАЗОВАНИЕ",desc:"+1 балл если ≤12 лет формального образования"}]},
  CDT:{name:"ТЕСТ РИСОВАНИЯ ЧАСОВ",body:"Нарисуйте часы, показывающие 11:10; классический скрининг деменции, исполнительной дисфункции, гемипространственного неглекта, конструктивной апраксии. Используется в MoCA, MMSE-2, Mini-Cog. Браузерная версия фиксирует полные данные штрихов + время выполнения для ручной оценки (Shulman 6-балльная или Sunderland 10-балльная).",rules:[{key:"НАРИСУЙТЕ",desc:"Круг часов со всеми цифрами"},{key:"ВРЕМЯ",desc:"Установите стрелки на 11:10"},{key:"ОЦЕНКА",desc:"Shulman 6-балльная или Sunderland 10-балльная"},{key:"ШТРИХИ",desc:"Полные данные штрихов сохраняются"}]},
  PHQ9:{name:"PHQ-9 — ДЕПРЕССИЯ",body:"PHQ-9 (Kroenke et al., 2001) — наиболее валидированный краткий скрининг депрессии. Девять пунктов соответствуют критериям DSM-5 большого депрессивного эпизода; рейтинг 0–3 за последние две недели. Балл ≥10 имеет чувствительность 88 % и специфичность 88 % для большой депрессии. Общественное достояние.",rules:[{key:"2 НЕДЕЛИ",desc:"Оцените, как часто проблема беспокоила за 2 недели"},{key:"0–3",desc:"0=совсем нет / 1=несколько дней / 2=более половины / 3=почти каждый день"},{key:"ПОРОГ",desc:"Всего ≥10 = положительный скрининг"},{key:"ПУНКТ 9",desc:"Суицидальные мысли — клиническое наблюдение"},{key:"МОНИТОР",desc:"Сдвиг на 5 баллов клинически значим"}]},
  GAD7:{name:"GAD-7 — ТРЕВОГА",body:"GAD-7 (Spitzer et al., 2006) — скрининг генерализованного тревожного расстройства и тяжести тревоги. Семь пунктов 0–3 за последние две недели. Балл ≥10 имеет чувствительность 89 % и специфичность 82 % для ГТР; также эффективно скринит на паническое расстройство, социальную тревогу и ПТСР. Общественное достояние.",rules:[{key:"2 НЕДЕЛИ",desc:"Оцените за последние 2 недели"},{key:"0–3",desc:"0=совсем нет / 1=несколько дней / 2=более половины / 3=почти каждый день"},{key:"ПОРОГ",desc:"≥10 = положительный скрининг"},{key:"ШИРОКО",desc:"ГТР, паника, социальная тревога, ПТСР"},{key:"МОНИТОР",desc:"Отслеживает ответ на лечение"}]},
  PCL5:{name:"PCL-5 — ПТСР",body:"PCL-5 (Weathers et al., 2013) — выраженность симптомов ПТСР по DSM-5. Двадцать пунктов покрывают вторжение (5), избегание (2), негативную когницию/настроение (7) и возбуждение/реактивность (6). Каждый оценивается 0–4 за последний месяц. Порог ≥33 обычно используется для положительного скрининга. Общественное достояние.",rules:[{key:"МЕСЯЦ",desc:"Оцените за последний месяц"},{key:"0–4",desc:"0=совсем нет / ... / 4=чрезвычайно"},{key:"ПОРОГ",desc:"Всего ≥33 = вероятное ПТСР"},{key:"КЛАСТЕРЫ",desc:"Вторжение / избегание / когниция-настроение / возбуждение"},{key:"DSM-5",desc:"Кластерная оценка даёт провизорный диагноз"}]},
  AUDIT:{name:"AUDIT — УПОТРЕБЛЕНИЕ АЛКОГОЛЯ",body:"AUDIT (Saunders et al., 1993, ВОЗ) — золотой стандарт скрининга расстройств употребления алкоголя. Десять пунктов: употребление (1–3), зависимость (4–6), вред (7–10). Балл 0–7 низкий риск; 8–15 опасное; 16–19 вредное; 20+ вероятная зависимость. Общественное достояние.",rules:[{key:"ГОД",desc:"Оцените за последние 12 месяцев"},{key:"ПОРЦИЯ",desc:"≈10 г этанола (1 банка пива / 1 бокал вина)"},{key:"ПОРОГ",desc:"≥8 — опасное / вредное употребление"},{key:"ЗОНЫ",desc:"I (низкий) / II (опасное) / III (вредное) / IV (зависимость)"},{key:"ВОЗ",desc:"Глобальный стандарт"}]},
  ASRS:{name:"ASRS — ВЗРОСЛЫЙ СДВГ",body:"ASRS-v1.1 (Kessler et al., 2005) — скрининг взрослого СДВГ. Содержит 18 вопросов, соответствующих критериям DSM-IV СДВГ, оцениваемых 0–4 за последние 6 месяцев. Часть A (вопросы 1–6) — валидированный краткий скрининг; ≥4 из 6 пунктов в затенённом диапазоне = положительный скрининг (чувствительность 68,7 %, специфичность 99,5 %). Общественное достояние.",rules:[{key:"6 МЕСЯЦЕВ",desc:"Оцените за последние 6 месяцев"},{key:"ЧАСТЬ A",desc:"Вопросы 1–6 — валидированный скрининг"},{key:"ПОРОГ",desc:"≥4 из 6 в затенённом диапазоне = положительно"},{key:"ОБА ТИПА",desc:"Невнимательность и гиперактивность-импульсивность"},{key:"ВЗРОСЛЫЕ",desc:"Не для детей — детские шкалы отличаются"}]},
  HACHINSKI:{name:"ИШЕМИЧЕСКАЯ ШКАЛА ХАЧИНСКОГО",body:"Hachinski Ischemic Score (Hachinski, Iliff, Zilhka et al., 1975, Arch Neurol 32:632–637) — 13-пунктный чек-лист, заполняемый клиницистом, дифференцирует мультиинфарктную (сосудистую) деменцию от деменции Альцгеймеровского типа. Каждый пункт оценивается как присутствующий (1 или 2 балла) или отсутствующий (0). Общий диапазон 0–18. ≤4 → первичная дегенеративная; 5–6 → смешанная; ≥7 → мультиинфарктная.",rules:[{key:"КЛИНИЦИСТ",desc:"Заполняется на основе анамнеза от пациента и информанта"},{key:"13 ПУНКТОВ",desc:"Присутствие = 1 или 2 балла; отсутствие = 0"},{key:"ВЕСА",desc:"2 балла: внезапное начало, флуктуация, инсульты, очаговые симптомы/знаки"},{key:"ПОРОГИ",desc:"≤4 = AD-тип; 5–6 = смешанная; ≥7 = мультиинфарктная"},{key:"АДЪЮНКТ",desc:"Использовать вместе с нейровизуализацией"}]},
  KATZ:{name:"ИНДЕКС КАТЦА — БАЗОВЫЕ АПЖ",body:"Katz Index (Katz et al., 1963, JAMA 185:914–919) — наиболее широко используемая мера базовых активностей повседневной жизни. Шесть пунктов — купание, одевание, туалет, перенос, удержание и питание — каждый оценивается 1 (независим) или 0 (зависим). Всего 0–6. Шкала Катца захватывает фундаментальные способности самообслуживания, снижающиеся поздно при деменции и прогрессии инвалидизации.",rules:[{key:"КЛИНИЦИСТ",desc:"Оценивается клиницистом или информантом"},{key:"6 ПУНКТОВ",desc:"Купание · Одевание · Туалет · Перенос · Удержание · Питание"},{key:"БИНАРНО",desc:"1 (независим) или 0 (зависим / нужна помощь)"},{key:"ШКАЛА",desc:"6 = полная функция · 4 = умеренное · ≤2 = тяжёлое нарушение"},{key:"ПАРНО",desc:"Часто сочетается с Лоутон ИАПЖ"}]},
  LAWTON:{name:"ИНДЕКС ЛОУТОНА — ИАПЖ",body:"Lawton IADL Scale (Lawton & Brody, 1969, Gerontologist 9:179–186) — измеряет инструментальные активности высшего порядка, необходимые для независимой жизни в обществе. Восемь пунктов — телефон, покупки, приготовление пищи, ведение хозяйства, стирка, транспорт, лекарства и финансы — каждый 0 или 1. Современная унисекс-оценка 0–8 (ниже = более нарушено). Спад ИАПЖ обычно предшествует спаду БАПЖ на годы при деменции.",rules:[{key:"КЛИНИЦИСТ",desc:"Оценивается на основе наблюдения или отчёта информанта"},{key:"8 ПУНКТОВ",desc:"Телефон · Покупки · Готовка · Хозяйство · Стирка · Транспорт · Лекарства · Финансы"},{key:"0–8",desc:"Каждый пункт 0 (зависим) или 1 (независим)"},{key:"РАННИЙ МАРКЕР",desc:"Спад ИАПЖ предшествует спаду БАПЖ"},{key:"ПАРНО",desc:"Часто сочетается с Катц АПЖ"}]},
  SPR:{name:"СЕРИЙНОЕ РАСПОЗНАВАНИЕ ЗОНДА",body:"Зрительное серийное распознавание зонда — парадигма Сэндса и Райта (1980, Science 209:938; JEP:ABP 6:386). Список из N различных элементов предъявляется по одному, после чего предъявляется один зонд. Испытуемый судит, был ли зонд в списке. С уникальными для каждой пробы стимулами функция серийной позиции показывает классические эффекты первичности и недавности, отражая классическое сравнение обезьяна/человек. По умолчанию используются процедурные стимулы-формы; загрузите собственный набор изображений через кнопку ⚛ ПОЛЬЗОВАТЕЛЬСКИЕ ИЗОБРАЖЕНИЯ на боковой панели.",rules:[{key:'ИЗУЧЕНИЕ',desc:'Наблюдайте N элементов, показанных по одному (по умолчанию: 10 затем 20)'},{key:'ЗОНД',desc:'Элемент появляется после интервала удержания'},{key:'F / ←КЛИК',desc:'ДА — зонд был в списке'},{key:'J / →КЛИК',desc:'НЕТ — зонда не было в списке'},{key:'ПОЗИЦИЯ',desc:'Зонды равномерно охватывают все позиции'},{key:'ВЫВОД',desc:'Функция серийной позиции · d-prime · ВР'}]},
  'SPR-A':{name:"СЕРИЙНОЕ РАСПОЗНАВАНИЕ ЗОНДА (СЛУХОВОЕ)",body:"Слуховой аналог серийной парадигмы зонда Сэндса и Райта. Список из N различных звуковых стимулов предъявляется последовательно, затем воспроизводится один зонд. Испытуемый судит, был ли зонд в списке. Требуются звуковые файлы, загруженные пользователем: откройте ♬ ПОЛЬЗОВАТЕЛЬСКИЙ АУДИО на боковой панели и добавьте не менее 8 файлов в пул SPR-A.",rules:[{key:'ЗАГРУЗИТЬ',desc:'Загрузите ≥8 звуков через ♬ ПОЛЬЗОВАТЕЛЬСКИЙ АУДИО → SPR-A ПУЛ'},{key:'СЛУШАТЬ',desc:'Слушайте N звуков по одному'},{key:'ЗОНД',desc:'Звук воспроизводится после интервала удержания'},{key:'F / ←КЛИК',desc:'ДА — зонд был в списке'},{key:'J / →КЛИК',desc:'НЕТ — зонда не было в списке'},{key:'ВЫВОД',desc:'Функция серийной позиции · d-prime · ВР'}]},
  MTS:{name:"СОПОСТАВЛЕНИЕ С ОБРАЗЦОМ",body:"Сопоставление с образцом — парадигма различения Райта, Сантьяго, Сэндса и др. Предъявляется образец-стимул, затем появляется набор из 2–4 сравнительных стимулов; испытуемый выбирает сравнение, соответствующее образцу. При одновременном MTS образец остаётся видимым во время выбора; при отсроченном MTS (DMTS) образец убирается и интервал удержания предшествует сравнениям, проверяя кратковременную память. Использует те же процедурные формы или пул ⚛ ПОЛЬЗОВАТЕЛЬСКИЕ ИЗОБРАЖЕНИЯ, что и SPR.",rules:[{key:'ОБРАЗЕЦ',desc:'Появляется один образец-стимул'},{key:'СРАВНЕНИЯ',desc:'Появляются 2–4 варианта (один совпадает)'},{key:'ВЫБОР',desc:'Кликните по совпадению или нажмите 1 / 2 / 3 / 4'},{key:'ОДНОВРЕМЕННО',desc:'Образец виден во время выбора'},{key:'ОТСРОЧЕННЫЙ (DMTS)',desc:'Образец скрыт + интервал удержания'},{key:'ВЫВОД',desc:'Точность · ВР · перенос концепции'}]}
};

const TILE_LABELS_EN={};
const SUBTITLES_LANG={en:'COGNITIVE TASK BATTERY · R20',es:'BATERÍA DE TAREAS COGNITIVAS · R20',fr:'BATTERIE DE TÂCHES COGNITIVES · R20',de:'KOGNITIVE AUFGABENBATTERIE · R20',zh:'认知任务集 · R20',ja:'認知タスクバッテリ · R20',pt:'BATERIA DE TAREFAS COGNITIVAS · R20',he:'סוללת משימות קוגניטיביות · R20',ar:'بطارية المهام المعرفية · R20',nl:'COGNITIEVE TAAKBATTERIJ · R20',af:'KOGNITIEWE TAAKBATTERY · R20',fi:'KOGNITIIVISTEN TEHTÄVIEN PATTERISTO · R20',ru:'БАТАРЕЯ КОГНИТИВНЫХ ЗАДАЧ · R20'};

// ══ STATIC UI STRINGS — per-language translations ══════════
// Maps the canonical English string to its translation in each supported
// language. Used at setLang() time to update buttons, banners, and labels
// that aren't dynamically generated.
var UI_STRINGS={
  '▶ PRACTICE (5 trials)':{
    es:'▶ PRÁCTICA (5 ensayos)',fr:'▶ ENTRAÎNEMENT (5 essais)',de:'▶ ÜBUNG (5 Versuche)',
    zh:'▶ 练习（5次试验）',ja:'▶ 練習（5試行）',pt:'▶ PRÁTICA (5 ensaios)',
    he:'▶ תרגול (5 ניסויים)',ar:'▶ تمرين (5 تجارب)',nl:'▶ OEFENEN (5 trials)',
    af:'▶ OEFEN (5 proewe)',fi:'▶ HARJOITUS (5 koetta)',ru:'▶ ТРЕНИРОВКА (5 проб)'
  },
  'MAIN TASK →':{
    es:'TAREA PRINCIPAL →',fr:'TÂCHE PRINCIPALE →',de:'HAUPTAUFGABE →',
    zh:'主任务 →',ja:'本番タスク →',pt:'TAREFA PRINCIPAL →',
    he:'משימה ראשית →',ar:'المهمة الرئيسية →',nl:'HOOFDTAAK →',
    af:'HOOFTAAK →',fi:'PÄÄTEHTÄVÄ →',ru:'ОСНОВНОЕ ЗАДАНИЕ →'
  },
  '▶ BEGIN MAIN TASK':{
    es:'▶ INICIAR TAREA PRINCIPAL',fr:'▶ COMMENCER LA TÂCHE',de:'▶ HAUPTAUFGABE STARTEN',
    zh:'▶ 开始主任务',ja:'▶ 本試行を開始',pt:'▶ INICIAR TAREFA PRINCIPAL',
    he:'▶ התחל משימה ראשית',ar:'▶ بدء المهمة الرئيسية',nl:'▶ HOOFDTAAK STARTEN',
    af:'▶ HOOFTAAK BEGIN',fi:'▶ ALOITA PÄÄTEHTÄVÄ',ru:'▶ НАЧАТЬ ОСНОВНУЮ ЗАДАЧУ'
  },
  '↩ REPEAT PRACTICE':{
    es:'↩ REPETIR PRÁCTICA',fr:'↩ REFAIRE L\u2019ENTRAÎNEMENT',de:'↩ ÜBUNG WIEDERHOLEN',
    zh:'↩ 重复练习',ja:'↩ 練習を繰り返す',pt:'↩ REPETIR PRÁTICA',
    he:'↩ חזור על התרגול',ar:'↩ إعادة التمرين',nl:'↩ OEFENING HERHALEN',
    af:'↩ OEFENING HERHAAL',fi:'↩ TOISTA HARJOITUS',ru:'↩ ПОВТОРИТЬ ТРЕНИРОВКУ'
  },
  '↩ HOME':{
    es:'↩ INICIO',fr:'↩ ACCUEIL',de:'↩ START',
    zh:'↩ 主页',ja:'↩ ホーム',pt:'↩ INÍCIO',
    he:'↩ דף הבית',ar:'↩ الرئيسية',nl:'↩ HOME',
    af:'↩ TUIS',fi:'↩ KOTI',ru:'↩ ДОМОЙ'
  },
  '↩ RESET':{
    es:'↩ REINICIAR',fr:'↩ RÉINITIALISER',de:'↩ ZURÜCKSETZEN',
    zh:'↩ 重置',ja:'↩ リセット',pt:'↩ REINICIAR',
    he:'↩ איפוס',ar:'↩ إعادة تعيين',nl:'↩ RESET',
    af:'↩ HERSTEL',fi:'↩ NOLLAA',ru:'↩ СБРОС'
  },
  '⬇ EXPORT CSV':{
    es:'⬇ EXPORTAR CSV',fr:'⬇ EXPORTER CSV',de:'⬇ CSV EXPORTIEREN',
    zh:'⬇ 导出 CSV',ja:'⬇ CSVエクスポート',pt:'⬇ EXPORTAR CSV',
    he:'⬇ ייצוא CSV',ar:'⬇ تصدير CSV',nl:'⬇ EXPORTEER CSV',
    af:'⬇ VOER CSV UIT',fi:'⬇ VIE CSV',ru:'⬇ ЭКСПОРТ CSV'
  },
  '⬇ EXPORT ALL':{
    es:'⬇ EXPORTAR TODO',fr:'⬇ TOUT EXPORTER',de:'⬇ ALLES EXPORTIEREN',
    zh:'⬇ 全部导出',ja:'⬇ すべてエクスポート',pt:'⬇ EXPORTAR TUDO',
    he:'⬇ ייצוא הכל',ar:'⬇ تصدير الكل',nl:'⬇ ALLES EXPORTEREN',
    af:'⬇ VOER ALLES UIT',fi:'⬇ VIE KAIKKI',ru:'⬇ ЭКСПОРТ ВСЕГО'
  },
  '▦ SESSION STATS':{
    es:'▦ EST. SESIÓN',fr:'▦ STATS SESSION',de:'▦ SITZUNGSSTATS',
    zh:'▦ 会话统计',ja:'▦ セッション統計',pt:'▦ EST. SESSÃO',
    he:'▦ סטטיסטיקות',ar:'▦ إحصاءات الجلسة',nl:'▦ SESSIE-STATS',
    af:'▦ SESSIE-STATS',fi:'▦ ISTUNTO',ru:'▦ СТАТ. СЕССИИ'
  },
  'SKIP CHECK →':{
    es:'OMITIR VERIF. →',fr:'PASSER LA VÉRIF. →',de:'PRÜFUNG ÜBERSPR. →',
    zh:'跳过检查 →',ja:'チェックをスキップ →',pt:'PULAR VERIF. →',
    he:'דלג על הבדיקה →',ar:'تخطي الفحص →',nl:'CONTROLE OVERSLAAN →',
    af:'KONTROLE OORSLAAN →',fi:'OHITA TARK. →',ru:'ПРОПУСТИТЬ ПРОВЕРКУ →'
  },
  'PRACTICE COMPLETE':{
    es:'PRÁCTICA COMPLETA',fr:'ENTRAÎNEMENT TERMINÉ',de:'ÜBUNG ABGESCHLOSSEN',
    zh:'练习完成',ja:'練習完了',pt:'PRÁTICA COMPLETA',
    he:'התרגול הושלם',ar:'اكتمل التمرين',nl:'OEFENING VOLTOOID',
    af:'OEFENING VOLTOOI',fi:'HARJOITUS VALMIS',ru:'ТРЕНИРОВКА ЗАВЕРШЕНА'
  },
  'PRACTICE MODE — responses not recorded':{
    es:'MODO PRÁCTICA — respuestas no registradas',fr:'MODE ENTRAÎNEMENT — réponses non enregistrées',de:'ÜBUNGSMODUS — Antworten werden nicht gespeichert',
    zh:'练习模式 — 不记录回答',ja:'練習モード — 反応は記録されません',pt:'MODO PRÁTICA — respostas não registadas',
    he:'מצב תרגול — תגובות אינן נשמרות',ar:'وضع التمرين — لا تُسجّل الاستجابات',nl:'OEFENMODUS — antwoorden niet opgenomen',
    af:'OEFENMODUS — antwoorde nie opgeneem nie',fi:'HARJOITUSTILA — vastauksia ei tallenneta',ru:'РЕЖИМ ТРЕНИРОВКИ — ответы не записываются'
  },
  'PRACTICE MODE — results not recorded':{
    es:'MODO PRÁCTICA — resultados no registrados',fr:'MODE ENTRAÎNEMENT — résultats non enregistrés',de:'ÜBUNGSMODUS — Ergebnisse werden nicht gespeichert',
    zh:'练习模式 — 不记录结果',ja:'練習モード — 結果は記録されません',pt:'MODO PRÁTICA — resultados não registados',
    he:'מצב תרגול — תוצאות אינן נשמרות',ar:'وضع التمرين — لا تُسجّل النتائج',nl:'OEFENMODUS — resultaten niet opgenomen',
    af:'OEFENMODUS — resultate nie opgeneem nie',fi:'HARJOITUSTILA — tuloksia ei tallenneta',ru:'РЕЖИМ ТРЕНИРОВКИ — результаты не записываются'
  },
  'PRACTICE MODE':{
    es:'MODO PRÁCTICA',fr:'MODE ENTRAÎNEMENT',de:'ÜBUNGSMODUS',
    zh:'练习模式',ja:'練習モード',pt:'MODO PRÁTICA',
    he:'מצב תרגול',ar:'وضع التمرين',nl:'OEFENMODUS',
    af:'OEFENMODUS',fi:'HARJOITUSTILA',ru:'РЕЖИМ ТРЕНИРОВКИ'
  },
  'TRIALS':{
    es:'ENSAYOS',fr:'ESSAIS',de:'VERSUCHE',
    zh:'试验数',ja:'試行数',pt:'ENSAIOS',
    he:'ניסויים',ar:'تجارب',nl:'TRIALS',
    af:'PROEWE',fi:'KOKEET',ru:'ПРОБЫ'
  },
  'SUBMIT':{
    es:'ENVIAR',fr:'SOUMETTRE',de:'ABSENDEN',
    zh:'提交',ja:'送信',pt:'SUBMETER',
    he:'שלח',ar:'إرسال',nl:'INDIENEN',
    af:'INDIEN',fi:'LÄHETÄ',ru:'ОТПРАВИТЬ'
  },
  'CANCEL':{
    es:'CANCELAR',fr:'ANNULER',de:'ABBRECHEN',
    zh:'取消',ja:'キャンセル',pt:'CANCELAR',
    he:'בטל',ar:'إلغاء',nl:'ANNULEREN',
    af:'KANSELLEER',fi:'PERUUTA',ru:'ОТМЕНА'
  },
  'HOME':{
    es:'INICIO',fr:'ACCUEIL',de:'START',
    zh:'主页',ja:'ホーム',pt:'INÍCIO',
    he:'דף הבית',ar:'الرئيسية',nl:'HOME',
    af:'TUIS',fi:'KOTI',ru:'ДОМОЙ'
  },
  'Configure cue type & SOA before starting':{
    es:'Configure el tipo de señal y SOA antes de empezar',fr:'Configurez le type d\u2019indice et SOA avant de commencer',de:'Hinweistyp und SOA vor dem Start konfigurieren',
    zh:'开始前配置提示类型和SOA',ja:'開始前にキュータイプとSOAを設定',pt:'Configure o tipo de pista e SOA antes de começar',
    he:'הגדר סוג רמז ו-SOA לפני התחלה',ar:'اضبط نوع التلميح وSOA قبل البدء',nl:'Configureer cue-type en SOA vóór start',
    af:'Stel wenk-tipe en SOA in voor begin',fi:'Aseta vihjetyyppi ja SOA ennen aloitusta',ru:'Настройте тип подсказки и SOA перед началом'
  }
};

// ══ I18N UNIFIED REGISTRY ════════════════════════════════════
// Single source of truth for translations. Aggregates the legacy per-language
// constants (PARADIGMS_xx, TILE_LABELS_xx, QUESTIONNAIRES_RU, etc.) under a
// uniform shape so consumers can do I18N[lang].namespace.key with English
// fallback. This is Phase 1 of a refactor — values reference the same arrays
// as the legacy constants, so updating either updates both.
//
// Shape:
//   I18N[lang] = {
//     tiles:          { TASK_KEY: 'localized tile label', ... },
//     paradigms:      { TASK_KEY: {name, body, rules:[{key,desc}...]}, ... },
//     questionnaires: { scaleId: {Q, O, timeRef}, ... },   // ru only at present
//     results:        { scaleId: {interp_minimal, ...}, ... },  // ru only
//     ui:             { 'English text': 'localized text', ... },
//     subtitle:       'COGNITIVE TASK BATTERY · R20 in this language'
//   }
//
// Lookup helper: t(namespace, key) reads I18N[currentLang][namespace][key],
// falls back to I18N.en, then returns key itself if nothing found.
// Forwards-compatible: adding a new language = one new top-level key in I18N.

// Helper: invert UI_STRINGS shape from {englishKey: {lang: translation}} to
// {lang: {englishKey: translation}} so I18N[lang].ui is consistent with the
// other namespaces.
function _invertUIStrings(){
  var byLang = {en:{}};
  Object.keys(UI_STRINGS).forEach(function(enKey){
    byLang.en[enKey] = enKey;  // English maps to itself
    var langs = UI_STRINGS[enKey];
    Object.keys(langs).forEach(function(lang){
      if(!byLang[lang]) byLang[lang] = {};
      byLang[lang][enKey] = langs[lang];
    });
  });
  return byLang;
}
var _UI_BY_LANG = _invertUIStrings();

const I18N = {
  en: {
    tiles:          TILE_LABELS_EN,
    paradigms:      PARADIGMS,
    questionnaires: {},
    results:        {},
    ui:             _UI_BY_LANG.en || {},
    subtitle:       SUBTITLES_LANG.en
  },
  es: { tiles: TILE_LABELS_ES, paradigms: PARADIGMS_ES, questionnaires: {}, results: {}, ui: _UI_BY_LANG.es || {}, subtitle: SUBTITLES_LANG.es },
  fr: { tiles: TILE_LABELS_FR, paradigms: PARADIGMS_FR, questionnaires: {}, results: {}, ui: _UI_BY_LANG.fr || {}, subtitle: SUBTITLES_LANG.fr },
  de: { tiles: TILE_LABELS_DE, paradigms: PARADIGMS_DE, questionnaires: {}, results: {}, ui: _UI_BY_LANG.de || {}, subtitle: SUBTITLES_LANG.de },
  zh: { tiles: TILE_LABELS_ZH, paradigms: PARADIGMS_ZH, questionnaires: {}, results: {}, ui: _UI_BY_LANG.zh || {}, subtitle: SUBTITLES_LANG.zh },
  ja: { tiles: TILE_LABELS_JA, paradigms: PARADIGMS_JA, questionnaires: {}, results: {}, ui: _UI_BY_LANG.ja || {}, subtitle: SUBTITLES_LANG.ja },
  pt: { tiles: TILE_LABELS_PT, paradigms: PARADIGMS_PT, questionnaires: {}, results: {}, ui: _UI_BY_LANG.pt || {}, subtitle: SUBTITLES_LANG.pt },
  he: { tiles: TILE_LABELS_HE, paradigms: PARADIGMS_HE, questionnaires: {}, results: {}, ui: _UI_BY_LANG.he || {}, subtitle: SUBTITLES_LANG.he },
  ar: { tiles: TILE_LABELS_AR, paradigms: PARADIGMS_AR, questionnaires: {}, results: {}, ui: _UI_BY_LANG.ar || {}, subtitle: SUBTITLES_LANG.ar },
  nl: { tiles: TILE_LABELS_NL, paradigms: PARADIGMS_NL, questionnaires: {}, results: {}, ui: _UI_BY_LANG.nl || {}, subtitle: SUBTITLES_LANG.nl },
  af: { tiles: TILE_LABELS_AF, paradigms: PARADIGMS_AF, questionnaires: {}, results: {}, ui: _UI_BY_LANG.af || {}, subtitle: SUBTITLES_LANG.af },
  fi: { tiles: TILE_LABELS_FI, paradigms: PARADIGMS_FI, questionnaires: {}, results: {}, ui: _UI_BY_LANG.fi || {}, subtitle: SUBTITLES_LANG.fi },
  ru: { tiles: TILE_LABELS_RU, paradigms: PARADIGMS_RU, questionnaires: {}, results: {}, ui: _UI_BY_LANG.ru || {}, subtitle: SUBTITLES_LANG.ru }
};
try{ window.I18N=I18N; }catch(e){}  // harness exposure

// Lookup helper with graceful fallback.
//   t(ns, key)        → I18N[currentLang][ns][key] || I18N.en[ns][key] || key
//   t(ns, key, lang)  → explicit language
// Examples:
//   t('tiles', 'GNG')                    // localized tile label for current lang
//   t('paradigms', 'STROOP')             // {name, body, rules} object
//   t('ui', '▶ PRACTICE (5 trials)')     // localized button text
//   t('subtitle', null)                  // returns the subtitle string itself
function t(ns, key, langOverride){
  var lang = langOverride || (typeof currentLang !== 'undefined' ? currentLang : 'en');
  if(ns === 'subtitle'){
    return (I18N[lang] && I18N[lang].subtitle) || I18N.en.subtitle;
  }
  var bucket = I18N[lang] && I18N[lang][ns];
  if(bucket && bucket[key] !== undefined) return bucket[key];
  var enBucket = I18N.en && I18N.en[ns];
  if(enBucket && enBucket[key] !== undefined) return enBucket[key];
  return key;
}

// ══ RUNTIME STRINGS REGISTRY ═════════════════════════════════
// Translates JavaScript-assigned textContent values (phase labels like STUDY,
// TARGET, STANDARD, ODDBALL, MISS, RT DISTRIBUTION, etc.) and the static
// "XXX RESULTS" titles on every task's results screen.
//
// Each entry maps the English string to its translation in 12 languages.
// Task acronyms (P300, MMN, N400, etc.) stay in English by convention.
//
// Used by: tr() helper below + localizeUIStrings() sweep (extended to also
// translate .vrt-results-title elements at language-switch time).

var RUNTIME_I18N = {
  'ABR RESULTS': {es:'ABR RESULTADOS',fr:'ABR RÉSULTATS',de:'ABR ERGEBNISSE',zh:'ABR 结果',ja:'ABR 結果',pt:'ABR RESULTADOS',he:'ABR תוצאות',ar:'ABR النتائج',nl:'ABR RESULTATEN',af:'ABR RESULTATE',fi:'ABR TULOKSET',ru:'ABR РЕЗУЛЬТАТЫ'},
  'ASRS ADHD RESULTS': {es:'ASRS TDAH RESULTADOS',fr:'ASRS TDAH RÉSULTATS',de:'ASRS ADHS ERGEBNISSE',zh:'ASRS 多动症 结果',ja:'ASRS ADHD 結果',pt:'ASRS TDAH RESULTADOS',he:'ASRS ADHD תוצאות',ar:'ASRS ADHD النتائج',nl:'ASRS ADHD RESULTATEN',af:'ASRS ADHD RESULTATE',fi:'ASRS ADHD TULOKSET',ru:'ASRS СДВГ РЕЗУЛЬТАТЫ'},
  'ASSR RESULTS': {es:'ASSR RESULTADOS',fr:'ASSR RÉSULTATS',de:'ASSR ERGEBNISSE',zh:'ASSR 结果',ja:'ASSR 結果',pt:'ASSR RESULTADOS',he:'ASSR תוצאות',ar:'ASSR النتائج',nl:'ASSR RESULTATEN',af:'ASSR RESULTATE',fi:'ASSR TULOKSET',ru:'ASSR РЕЗУЛЬТАТЫ'},
  'ATTEND ': {es:'ATIENDE ',fr:'ATTENTION ',de:'BEACHTEN ',zh:'注意 ',ja:'注意 ',pt:'ATENDA ',he:'שים לב ',ar:'انتبه ',nl:'LET OP ',af:'LET OP ',fi:'HUOMIO ',ru:'ВНИМАНИЕ '},
  'ATTEND LEFT': {es:'ATIENDE IZQUIERDA',fr:'ATTENTION GAUCHE',de:'NACH LINKS BEACHTEN',zh:'注意左侧',ja:'左に注意',pt:'ATENDA À ESQUERDA',he:'שים לב לשמאל',ar:'انتبه لليسار',nl:'LET OP LINKS',af:'LET OP LINKS',fi:'HUOMIO VASEN',ru:'ВНИМАНИЕ ВЛЕВО'},
  'ATTENTIONAL BLINK RESULTS': {es:'PARPADEO ATENCIONAL RESULTADOS',fr:'CLIGNEMENT ATTENTIONNEL RÉSULTATS',de:'AUFMERKSAMKEITS-BLINK ERGEBNISSE',zh:'注意瞬脱 结果',ja:'注意の瞬き 結果',pt:'PISCAR ATENCIONAL RESULTADOS',he:'מצמוץ קשב תוצאות',ar:'وميض الانتباه النتائج',nl:'AANDACHTSKNIPPER RESULTATEN',af:'AANDAGSKNIPSEL RESULTATE',fi:'TARKKAAVAISUUSVÄLKE TULOKSET',ru:'МИГАНИЕ ВНИМАНИЯ РЕЗУЛЬТАТЫ'},
  'AUDIOGRAM RESULTS': {es:'AUDIOGRAMA RESULTADOS',fr:'AUDIOGRAMME RÉSULTATS',de:'AUDIOGRAMM ERGEBNISSE',zh:'听力图 结果',ja:'オージオグラム 結果',pt:'AUDIOGRAMA RESULTADOS',he:'אודיוגרמה תוצאות',ar:'تخطيط السمع النتائج',nl:'AUDIOGRAM RESULTATEN',af:'OUDIOGRAM RESULTATE',fi:'AUDIOGRAMMI TULOKSET',ru:'АУДИОГРАММА РЕЗУЛЬТАТЫ'},
  'AUDIT ALCOHOL RESULTS': {es:'AUDIT ALCOHOL RESULTADOS',fr:'AUDIT ALCOOL RÉSULTATS',de:'AUDIT ALKOHOL ERGEBNISSE',zh:'AUDIT 酒精 结果',ja:'AUDITアルコール 結果',pt:'AUDIT ÁLCOOL RESULTADOS',he:'AUDIT אלכוהול תוצאות',ar:'AUDIT الكحول النتائج',nl:'AUDIT ALCOHOL RESULTATEN',af:'AUDIT ALKOHOL RESULTATE',fi:'AUDIT ALKOHOLI TULOKSET',ru:'AUDIT АЛКОГОЛЬ РЕЗУЛЬТАТЫ'},
  'BOSTON NAMING RESULTS': {es:'DENOMINACIÓN BOSTON RESULTADOS',fr:'DÉNOMINATION BOSTON RÉSULTATS',de:'BOSTON-BENENNUNG ERGEBNISSE',zh:'波士顿命名 结果',ja:'ボストン命名 結果',pt:'NOMEAÇÃO BOSTON RESULTADOS',he:'שיום בוסטון תוצאות',ar:'تسمية بوسطن النتائج',nl:'BOSTON BENOEMING RESULTATEN',af:'BOSTON-BENAAM RESULTATE',fi:'BOSTON-NIMEÄMINEN TULOKSET',ru:'БОСТОНСКОЕ НАЗЫВАНИЕ РЕЗУЛЬТАТЫ'},
  'C1 RESULTS': {es:'C1 RESULTADOS',fr:'C1 RÉSULTATS',de:'C1 ERGEBNISSE',zh:'C1 结果',ja:'C1 結果',pt:'C1 RESULTADOS',he:'C1 תוצאות',ar:'C1 النتائج',nl:'C1 RESULTATEN',af:'C1 RESULTATE',fi:'C1 TULOKSET',ru:'C1 РЕЗУЛЬТАТЫ'},
  'CATCH': {es:'TRAMPA',fr:'PIÈGE',de:'KATCH',zh:'捕获',ja:'キャッチ',pt:'ARMADILHA',he:'מלכודת',ar:'فخ',nl:'CONTROLE',af:'KONTROLE',fi:'ANSA',ru:'КОНТРОЛЬ'},
  'CDA RESULTS': {es:'CDA RESULTADOS',fr:'CDA RÉSULTATS',de:'CDA ERGEBNISSE',zh:'CDA 结果',ja:'CDA 結果',pt:'CDA RESULTADOS',he:'CDA תוצאות',ar:'CDA النتائج',nl:'CDA RESULTATEN',af:'CDA RESULTATE',fi:'CDA TULOKSET',ru:'CDA РЕЗУЛЬТАТЫ'},
  'CHOOSE': {es:'ELIGE',fr:'CHOISIR',de:'WÄHLEN',zh:'选择',ja:'選択',pt:'ESCOLHA',he:'בחר',ar:'اختر',nl:'KIES',af:'KIES',fi:'VALITSE',ru:'ВЫБЕРИТЕ'},
  'CLICK': {es:'CLIC',fr:'CLIQUER',de:'KLICKEN',zh:'点击',ja:'クリック',pt:'CLIQUE',he:'לחץ',ar:'انقر',nl:'KLIK',af:'KLIK',fi:'KLIKKAA',ru:'КЛИК'},
  'CLOCK DRAWING — SESSION RECORD': {es:'DIBUJO DEL RELOJ — REGISTRO SESIÓN',fr:'DESSIN HORLOGE — REGISTRE SESSION',de:'UHRENZEICHNEN — SITZUNGSREGISTER',zh:'画钟测试 — 会话记录',ja:'時計描画 — セッション記録',pt:'DESENHO DO RELÓGIO — REGISTRO SESSÃO',he:'ציור שעון — תיעוד מפגש',ar:'رسم الساعة — سجل الجلسة',nl:'KLOK TEKENEN — SESSIE-REGISTER',af:'KLOK TEKEN — SESSIE-REGISTER',fi:'KELLOPIIRROS — ISTUNTOTIETUE',ru:'РИСОВАНИЕ ЧАСОВ — РЕГИСТР СЕССИИ'},
  'CNV RESULTS': {es:'CNV RESULTADOS',fr:'CNV RÉSULTATS',de:'CNV ERGEBNISSE',zh:'CNV 结果',ja:'CNV 結果',pt:'CNV RESULTADOS',he:'CNV תוצאות',ar:'CNV النتائج',nl:'CNV RESULTATEN',af:'CNV RESULTATE',fi:'CNV TULOKSET',ru:'CNV РЕЗУЛЬТАТЫ'},
  'CNV WARNING RESULTS': {es:'AVISO CNV RESULTADOS',fr:'PRÉ-AVERT. CNV RÉSULTATS',de:'CNV-WARNUNG ERGEBNISSE',zh:'CNV 警告 结果',ja:'CNV警告 結果',pt:'AVISO CNV RESULTADOS',he:'אזהרת CNV תוצאות',ar:'تحذير CNV النتائج',nl:'CNV-WAARSCHUWING RESULTATEN',af:'CNV-WAARSKUWING RESULTATE',fi:'CNV-VAROITUS TULOKSET',ru:'CNV — ПРЕДУПР. РЕЗУЛЬТАТЫ'},
  'COLOR VISION RESULTS': {es:'VISIÓN DE COLOR RESULTADOS',fr:'VISION DES COULEURS RÉSULTATS',de:'FARBSEHEN ERGEBNISSE',zh:'色觉 结果',ja:'色覚 結果',pt:'VISÃO DE COR RESULTADOS',he:'ראיית צבעים תוצאות',ar:'رؤية الألوان النتائج',nl:'KLEURENZICHT RESULTATEN',af:'KLEURESIG RESULTATE',fi:'VÄRINÄKÖ TULOKSET',ru:'ЦВЕТОВОЕ ЗРЕНИЕ РЕЗУЛЬТАТЫ'},
  'CPS RESULTS': {es:'CPS RESULTADOS',fr:'CPS RÉSULTATS',de:'CPS ERGEBNISSE',zh:'CPS 结果',ja:'CPS 結果',pt:'CPS RESULTADOS',he:'CPS תוצאות',ar:'CPS النتائج',nl:'CPS RESULTATEN',af:'CPS RESULTATE',fi:'CPS TULOKSET',ru:'CPS РЕЗУЛЬТАТЫ'},
  'CPT RESULTS': {es:'CPT RESULTADOS',fr:'CPT RÉSULTATS',de:'CPT ERGEBNISSE',zh:'CPT 结果',ja:'CPT 結果',pt:'CPT RESULTADOS',he:'CPT תוצאות',ar:'CPT النتائج',nl:'CPT RESULTATEN',af:'CPT RESULTATE',fi:'CPT TULOKSET',ru:'CPT РЕЗУЛЬТАТЫ'},
  'CSR RESULTS': {es:'CSR RESULTADOS',fr:'CSR RÉSULTATS',de:'CSR ERGEBNISSE',zh:'CSR 结果',ja:'CSR 結果',pt:'CSR RESULTADOS',he:'CSR תוצאות',ar:'CSR النتائج',nl:'CSR RESULTATEN',af:'CSR RESULTATE',fi:'CSR TULOKSET',ru:'CSR РЕЗУЛЬТАТЫ'},
  'CUE': {es:'SEÑAL',fr:'INDICE',de:'HINWEIS',zh:'提示',ja:'キュー',pt:'PISTA',he:'רמז',ar:'تلميح',nl:'AANWIJZING',af:'WENK',fi:'VIHJE',ru:'ПОДСКАЗКА'},
  'CVLT RESULTS': {es:'CVLT RESULTADOS',fr:'CVLT RÉSULTATS',de:'CVLT ERGEBNISSE',zh:'CVLT 结果',ja:'CVLT 結果',pt:'CVLT RESULTADOS',he:'CVLT תוצאות',ar:'CVLT النتائج',nl:'CVLT RESULTATEN',af:'CVLT RESULTATE',fi:'CVLT TULOKSET',ru:'CVLT РЕЗУЛЬТАТЫ'},
  'DECK A': {es:'BARAJA A',fr:'PAQUET A',de:'STAPEL A',zh:'牌组 A',ja:'デッキ A',pt:'BARALHO A',he:'חפיסה A',ar:'الكومة A',nl:'STAPEL A',af:'STAPEL A',fi:'PAKKA A',ru:'КОЛОДА A'},
  'DECK B': {es:'BARAJA B',fr:'PAQUET B',de:'STAPEL B',zh:'牌组 B',ja:'デッキ B',pt:'BARALHO B',he:'חפיסה B',ar:'الكومة B',nl:'STAPEL B',af:'STAPEL B',fi:'PAKKA B',ru:'КОЛОДА B'},
  'DELAY': {es:'RETARDO',fr:'DÉLAI',de:'VERZÖGERUNG',zh:'延迟',ja:'遅延',pt:'ATRASO',he:'השהיה',ar:'تأخير',nl:'VERTRAGING',af:'VERTRAGING',fi:'VIIVE',ru:'ЗАДЕРЖКА'},
  'DEVIANT': {es:'DESVIANTE',fr:'DÉVIANT',de:'ABWEICHEND',zh:'偏差',ja:'逸脱',pt:'DESVIANTE',he:'חורג',ar:'شاذ',nl:'AFWIJKEND',af:'AFWYKEND',fi:'POIKKEAVA',ru:'ДЕВИАНТ'},
  'DIGIT CANCELLATION RESULTS': {es:'CANCELACIÓN DE DÍGITOS RESULTADOS',fr:'BARRAGE DE CHIFFRES RÉSULTATS',de:'ZIFFERN-DURCHSTREICHEN ERGEBNISSE',zh:'数字划销 结果',ja:'数字抹消 結果',pt:'CANCELAMENTO DE DÍGITOS RESULTADOS',he:'ביטול ספרות תוצאות',ar:'شطب الأرقام النتائج',nl:'CIJFER-DOORHALING RESULTATEN',af:'SYFER-DEURHAAL RESULTATE',fi:'NUMEROYLIVIIVAUS TULOKSET',ru:'ВЫЧЁРКИВАНИЕ ЦИФР РЕЗУЛЬТАТЫ'},
  'DIGIT SPAN RESULTS': {es:'AMPLITUD DE DÍGITOS RESULTADOS',fr:'EMPAN DE CHIFFRES RÉSULTATS',de:'ZAHLENSPANNE ERGEBNISSE',zh:'数字广度 结果',ja:'数唱 結果',pt:'AMPLITUDE DE DÍGITOS RESULTADOS',he:'טווח ספרות תוצאות',ar:'مدى الأرقام النتائج',nl:'CIJFERREEKS RESULTATEN',af:'SYFERREEKS RESULTATE',fi:'NUMEROSARJA TULOKSET',ru:'ОБЪЁМ ЦИФР РЕЗУЛЬТАТЫ'},
  'DUAL TASK RESULTS': {es:'TAREA DOBLE RESULTADOS',fr:'DOUBLE TÂCHE RÉSULTATS',de:'DOPPELAUFGABE ERGEBNISSE',zh:'双任务 结果',ja:'二重課題 結果',pt:'TAREFA DUPLA RESULTADOS',he:'משימה כפולה תוצאות',ar:'مهمة مزدوجة النتائج',nl:'DUBBELE TAAK RESULTATEN',af:'DUBBELE TAAK RESULTATE',fi:'KAKSOISTEHTÄVÄ TULOKSET',ru:'ДВОЙНАЯ ЗАДАЧА РЕЗУЛЬТАТЫ'},
  'ELAN RESULTS': {es:'ELAN RESULTADOS',fr:'ELAN RÉSULTATS',de:'ELAN ERGEBNISSE',zh:'ELAN 结果',ja:'ELAN 結果',pt:'ELAN RESULTADOS',he:'ELAN תוצאות',ar:'ELAN النتائج',nl:'ELAN RESULTATEN',af:'ELAN RESULTATE',fi:'ELAN TULOKSET',ru:'ELAN РЕЗУЛЬТАТЫ'},
  'EMOTIONAL STROOP RESULTS': {es:'STROOP EMOCIONAL RESULTADOS',fr:'STROOP ÉMOTIONNEL RÉSULTATS',de:'EMOTIONALER STROOP ERGEBNISSE',zh:'情绪 Stroop 结果',ja:'情動ストループ 結果',pt:'STROOP EMOCIONAL RESULTADOS',he:'סטרופ רגשי תוצאות',ar:'ستروب عاطفي النتائج',nl:'EMOTIONELE STROOP RESULTATEN',af:'EMOSIONELE STROOP RESULTATE',fi:'TUNNE-STROOP TULOKSET',ru:'ЭМОЦ. СТРУП РЕЗУЛЬТАТЫ'},
  'ERAN RESULTS': {es:'ERAN RESULTADOS',fr:'ERAN RÉSULTATS',de:'ERAN ERGEBNISSE',zh:'ERAN 结果',ja:'ERAN 結果',pt:'ERAN RESULTADOS',he:'ERAN תוצאות',ar:'ERAN النتائج',nl:'ERAN RESULTATEN',af:'ERAN RESULTATE',fi:'ERAN TULOKSET',ru:'ERAN РЕЗУЛЬТАТЫ'},
  'ERN RESULTS': {es:'ERN RESULTADOS',fr:'ERN RÉSULTATS',de:'ERN ERGEBNISSE',zh:'ERN 结果',ja:'ERN 結果',pt:'ERN RESULTADOS',he:'ERN תוצאות',ar:'ERN النتائج',nl:'ERN RESULTATEN',af:'ERN RESULTATE',fi:'ERN TULOKSET',ru:'ERN РЕЗУЛЬТАТЫ'},
  'FACIAL EMOTION RECOGNITION RESULTS': {es:'RECONOC. EMOCIONES RESULTADOS',fr:'RECONNAISSANCE D\'ÉMOTIONS RÉSULTATS',de:'EMOTIONS-ERKENNUNG ERGEBNISSE',zh:'面部情绪识别 结果',ja:'表情認識 結果',pt:'RECONHEC. EMOÇÕES RESULTADOS',he:'זיהוי רגשות פנים תוצאות',ar:'تعرف انفعالات الوجه النتائج',nl:'EMOTIE-HERKENNING RESULTATEN',af:'EMOSIE-HERKENNING RESULTATE',fi:'TUNNE-TUNNISTUS TULOKSET',ru:'РАСПОЗН. ЭМОЦИЙ РЕЗУЛЬТАТЫ'},
  'FINGER TAPPING RESULTS': {es:'GOLPETEO DIGITAL RESULTADOS',fr:'TAPOTEMENT DES DOIGTS RÉSULTATS',de:'FINGERTIPPEN ERGEBNISSE',zh:'手指敲击 结果',ja:'フィンガータッピング 結果',pt:'BATIDA DE DEDOS RESULTADOS',he:'הקשת אצבע תוצאות',ar:'نقر الأصابع النتائج',nl:'VINGERTAPPEN RESULTATEN',af:'VINGERTIK RESULTATE',fi:'SORMINAPSAUTUS TULOKSET',ru:'ВИБР. ПАЛЬЦАМИ РЕЗУЛЬТАТЫ'},
  'FIXATION': {es:'FIJACIÓN',fr:'FIXATION',de:'FIXATION',zh:'注视',ja:'注視',pt:'FIXAÇÃO',he:'קיבוע',ar:'تثبيت',nl:'FIXATIE',af:'FIKSASIE',fi:'KIINTOPISTE',ru:'ФИКСАЦИЯ'},
  'FLANKER RESULTS': {es:'FLANKER RESULTADOS',fr:'FLANKER RÉSULTATS',de:'FLANKER ERGEBNISSE',zh:'FLANKER 结果',ja:'FLANKER 結果',pt:'FLANKER RESULTADOS',he:'FLANKER תוצאות',ar:'FLANKER النتائج',nl:'FLANKER RESULTATEN',af:'FLANKER RESULTATE',fi:'FLANKER TULOKSET',ru:'FLANKER РЕЗУЛЬТАТЫ'},
  'FREE RECALL ': {es:'RECUPERACIÓN LIBRE ',fr:'RAPPEL LIBRE ',de:'FREIER ABRUF ',zh:'自由回忆 ',ja:'自由再生 ',pt:'EVOCAÇÃO LIVRE ',he:'היזכרות חופשית ',ar:'استرجاع حر ',nl:'VRIJ OPHALEN ',af:'VRYE ONTHOU ',fi:'VAPAA PALAUTUS ',ru:'СВОБОДНОЕ ВОСПР. '},
  'FRN RESULTS': {es:'FRN RESULTADOS',fr:'FRN RÉSULTATS',de:'FRN ERGEBNISSE',zh:'FRN 结果',ja:'FRN 結果',pt:'FRN RESULTADOS',he:'FRN תוצאות',ar:'FRN النتائج',nl:'FRN RESULTATEN',af:'FRN RESULTATE',fi:'FRN TULOKSET',ru:'FRN РЕЗУЛЬТАТЫ'},
  'GABOR CONTRAST THRESHOLD RESULTS': {es:'UMBRAL CONTRASTE GABOR RESULTADOS',fr:'SEUIL CONTRASTE GABOR RÉSULTATS',de:'GABOR-KONTRASTSCHWELLE ERGEBNISSE',zh:'Gabor 对比阈值 结果',ja:'Gaborコントラスト閾値 結果',pt:'LIMIAR CONTRASTE GABOR RESULTADOS',he:'סף ניגודיות Gabor תוצאות',ar:'عتبة تباين Gabor النتائج',nl:'GABOR-CONTRASTDREMPEL RESULTATEN',af:'GABOR-KONTRASDREMPEL RESULTATE',fi:'GABOR-KONTRASTIRAJA TULOKSET',ru:'ПОРОГ КОНТРАСТА ГАБОРА РЕЗУЛЬТАТЫ'},
  'GAD-7 ANXIETY RESULTS': {es:'GAD-7 ANSIEDAD RESULTADOS',fr:'GAD-7 ANXIÉTÉ RÉSULTATS',de:'GAD-7 ANGST ERGEBNISSE',zh:'GAD-7 焦虑 结果',ja:'GAD-7不安 結果',pt:'GAD-7 ANSIEDADE RESULTADOS',he:'GAD-7 חרדה תוצאות',ar:'GAD-7 القلق النتائج',nl:'GAD-7 ANGST RESULTATEN',af:'GAD-7 ANGS RESULTATE',fi:'GAD-7 AHDISTUS TULOKSET',ru:'GAD-7 ТРЕВОГА РЕЗУЛЬТАТЫ'},
  'GO': {es:'IR',fr:'GO',de:'GO',zh:'GO',ja:'GO',pt:'IR',he:'בצע',ar:'اذهب',nl:'GO',af:'GAAN',fi:'MENE',ru:'ИДИ'},
  'HACHINSKI ISCHEMIC SCORE — RESULTS': {es:'ISQUÉMICA HACHINSKI — RESULTADOS',fr:'ISCHÉMIQUE HACHINSKI — RÉSULTATS',de:'HACHINSKI-ISCHÄMIE — ERGEBNISSE',zh:'Hachinski 缺血评分 — 结果',ja:'Hachinski虚血スコア — 結果',pt:'ISQUÊMICO HACHINSKI — RESULTADOS',he:'איסכמי Hachinski — תוצאות',ar:'Hachinski الإقفارية — النتائج',nl:'HACHINSKI ISCHEMISCH — RESULTATEN',af:'HACHINSKI ISGEMIES — RESULTATE',fi:'HACHINSKI-ISKEMIA — TULOKSET',ru:'ИШЕМИЯ HACHINSKI — РЕЗУЛЬТАТЫ'},
  'IOWA GAMBLING TASK RESULTS': {es:'TAREA APUESTAS IOWA RESULTADOS',fr:'TÂCHE JEU IOWA RÉSULTATS',de:'IOWA GLÜCKSSPIEL ERGEBNISSE',zh:'爱荷华博弈任务 结果',ja:'アイオワ・ギャンブリング課題 結果',pt:'TAREFA APOSTAS IOWA RESULTADOS',he:'מטלת הימורי Iowa תוצאות',ar:'مهمة Iowa للقمار النتائج',nl:'IOWA GOKTAAK RESULTATEN',af:'IOWA DOBBELTAAK RESULTATE',fi:'IOWA-PELITEHTÄVÄ TULOKSET',ru:'ИГРОВАЯ ЗАД. АЙОВЫ РЕЗУЛЬТАТЫ'},
  'JLO RESULTS': {es:'JLO RESULTADOS',fr:'JLO RÉSULTATS',de:'JLO ERGEBNISSE',zh:'JLO 结果',ja:'JLO 結果',pt:'JLO RESULTADOS',he:'JLO תוצאות',ar:'JLO النتائج',nl:'JLO RESULTATEN',af:'JLO RESULTATE',fi:'JLO TULOKSET',ru:'JLO РЕЗУЛЬТАТЫ'},
  'KATZ INDEX — BASIC ADL RESULTS': {es:'KATZ — AVD BÁSICAS RESULTADOS',fr:'KATZ — AVQ BASE RÉSULTATS',de:'KATZ — BASIS-ADL ERGEBNISSE',zh:'Katz 基本日常活动 结果',ja:'Katz基本ADL 結果',pt:'KATZ — AVD BÁSICAS RESULTADOS',he:'Katz — אדל בסיסיים תוצאות',ar:'Katz — أنشطة أساسية النتائج',nl:'KATZ — BASALE ADL RESULTATEN',af:'KATZ — BASIESE ADL RESULTATE',fi:'KATZ — PERUS-ADL TULOKSET',ru:'КАТЦ — БАПЖ РЕЗУЛЬТАТЫ'},
  'LAN RESULTS': {es:'LAN RESULTADOS',fr:'LAN RÉSULTATS',de:'LAN ERGEBNISSE',zh:'LAN 结果',ja:'LAN 結果',pt:'LAN RESULTADOS',he:'LAN תוצאות',ar:'LAN النتائج',nl:'LAN RESULTATEN',af:'LAN RESULTATE',fi:'LAN TULOKSET',ru:'LAN РЕЗУЛЬТАТЫ'},
  'LAWTON IADL — RESULTS': {es:'LAWTON AIVD — RESULTADOS',fr:'LAWTON AVQI — RÉSULTATS',de:'LAWTON IADL — ERGEBNISSE',zh:'Lawton 工具性日常活动 — 结果',ja:'Lawton IADL — 結果',pt:'LAWTON AIVD — RESULTADOS',he:'Lawton אדל אינסטרומנטליים — תוצאות',ar:'Lawton الأنشطة الأداتية — النتائج',nl:'LAWTON IADL — RESULTATEN',af:'LAWTON IADL — RESULTATE',fi:'LAWTON IADL — TULOKSET',ru:'ЛОУТОН ИАПЖ — РЕЗУЛЬТАТЫ'},
  'LDAEP RESULTS': {es:'LDAEP RESULTADOS',fr:'LDAEP RÉSULTATS',de:'LDAEP ERGEBNISSE',zh:'LDAEP 结果',ja:'LDAEP 結果',pt:'LDAEP RESULTADOS',he:'LDAEP תוצאות',ar:'LDAEP النتائج',nl:'LDAEP RESULTATEN',af:'LDAEP RESULTATE',fi:'LDAEP TULOKSET',ru:'LDAEP РЕЗУЛЬТАТЫ'},
  'LEXICAL DECISION RESULTS': {es:'DECISIÓN LÉXICA RESULTADOS',fr:'DÉCISION LEXICALE RÉSULTATS',de:'LEXIK. ENTSCHEIDUNG ERGEBNISSE',zh:'词汇判断 结果',ja:'語彙判断 結果',pt:'DECISÃO LEXICAL RESULTADOS',he:'החלטה לקסיקלית תוצאות',ar:'قرار معجمي النتائج',nl:'LEXICALE BESLISSING RESULTATEN',af:'LEKSIKALE BESLUIT RESULTATE',fi:'SANASTOLLINEN PÄÄTÖS TULOKSET',ru:'ЛЕКС. РЕШЕНИЕ РЕЗУЛЬТАТЫ'},
  'LINE ': {es:'LÍNEA ',fr:'LIGNE ',de:'LINIE ',zh:'线 ',ja:'ライン ',pt:'LINHA ',he:'קו ',ar:'خط ',nl:'LIJN ',af:'LYN ',fi:'VIIVA ',ru:'ЛИНИЯ '},
  'LONG DELAY FREE RECALL': {es:'RECUPERACIÓN LIBRE LARGA',fr:'RAPPEL LIBRE LONG',de:'LANGER FREIER ABRUF',zh:'长延迟自由回忆',ja:'長遅延自由再生',pt:'EVOCAÇÃO LIVRE LONGA',he:'היזכרות חופשית ארוכה',ar:'استرجاع حر طويل',nl:'LANG VRIJ OPHALEN',af:'LANG VRYE ONTHOU',fi:'PITKÄ VAPAA PALAUTUS',ru:'ДЛИНН. ОТСРОЧ. ВОСПР.'},
  'LPC RESULTS': {es:'LPC RESULTADOS',fr:'LPC RÉSULTATS',de:'LPC ERGEBNISSE',zh:'LPC 结果',ja:'LPC 結果',pt:'LPC RESULTADOS',he:'LPC תוצאות',ar:'LPC النتائج',nl:'LPC RESULTATEN',af:'LPC RESULTATE',fi:'LPC TULOKSET',ru:'LPC РЕЗУЛЬТАТЫ'},
  'MATRIX REASONING RESULTS': {es:'RAZONAMIENTO MATRICIAL RESULTADOS',fr:'RAISONNEMENT MATRICIEL RÉSULTATS',de:'MATRIZEN-DENKEN ERGEBNISSE',zh:'矩阵推理 结果',ja:'マトリックス推論 結果',pt:'RACIOCÍNIO MATRICIAL RESULTADOS',he:'הסקה מטריצית תוצאות',ar:'الاستدلال المصفوفي النتائج',nl:'MATRIX-REDENERING RESULTATEN',af:'MATRIKS-REDENASIE RESULTATE',fi:'MATRIISIPÄÄTTELY TULOKSET',ru:'МАТРИЧНОЕ РАССУЖД. РЕЗУЛЬТАТЫ'},
  'METACOGNITION RESULTS': {es:'METACOGNICIÓN RESULTADOS',fr:'MÉTACOGNITION RÉSULTATS',de:'METAKOGNITION ERGEBNISSE',zh:'元认知 结果',ja:'メタ認知 結果',pt:'METACOGNIÇÃO RESULTADOS',he:'מטה-קוגניציה תוצאות',ar:'ما وراء المعرفة النتائج',nl:'METACOGNITIE RESULTATEN',af:'METAKOGNISIE RESULTATE',fi:'METAKOGNITIO TULOKSET',ru:'МЕТАКОГНИЦИЯ РЕЗУЛЬТАТЫ'},
  'MFN RESULTS': {es:'MFN RESULTADOS',fr:'MFN RÉSULTATS',de:'MFN ERGEBNISSE',zh:'MFN 结果',ja:'MFN 結果',pt:'MFN RESULTADOS',he:'MFN תוצאות',ar:'MFN النتائج',nl:'MFN RESULTATEN',af:'MFN RESULTATE',fi:'MFN TULOKSET',ru:'MFN РЕЗУЛЬТАТЫ'},
  'MISS': {es:'FALLO',fr:'RATÉ',de:'VERFEHLT',zh:'未命中',ja:'ミス',pt:'PERDIDO',he:'החמצה',ar:'فاتك',nl:'GEMIST',af:'GEMIS',fi:'OHI',ru:'ПРОПУСК'},
  'MMN RESULTS': {es:'MMN RESULTADOS',fr:'MMN RÉSULTATS',de:'MMN ERGEBNISSE',zh:'MMN 结果',ja:'MMN 結果',pt:'MMN RESULTADOS',he:'MMN תוצאות',ar:'MMN النتائج',nl:'MMN RESULTATEN',af:'MMN RESULTATE',fi:'MMN TULOKSET',ru:'MMN РЕЗУЛЬТАТЫ'},
  'MMN SPEECH RESULTS': {es:'MMN HABLA RESULTADOS',fr:'MMN PAROLE RÉSULTATS',de:'MMN SPRACHE ERGEBNISSE',zh:'MMN 言语 结果',ja:'MMN音声 結果',pt:'MMN FALA RESULTADOS',he:'MMN דיבור תוצאות',ar:'MMN الكلام النتائج',nl:'MMN SPRAAK RESULTATEN',af:'MMN SPRAAK RESULTATE',fi:'MMN PUHE TULOKSET',ru:'MMN РЕЧЬ РЕЗУЛЬТАТЫ'},
  'MoCA RESULTS': {es:'MoCA RESULTADOS',fr:'MoCA RÉSULTATS',de:'MoCA ERGEBNISSE',zh:'MoCA 结果',ja:'MoCA 結果',pt:'MoCA RESULTADOS',he:'MoCA תוצאות',ar:'MoCA النتائج',nl:'MoCA RESULTATEN',af:'MoCA RESULTATE',fi:'MoCA TULOKSET',ru:'MoCA РЕЗУЛЬТАТЫ'},
  'N1-P2 RESULTS': {es:'N1-P2 RESULTADOS',fr:'N1-P2 RÉSULTATS',de:'N1-P2 ERGEBNISSE',zh:'N1-P2 结果',ja:'N1-P2 結果',pt:'N1-P2 RESULTADOS',he:'N1-P2 תוצאות',ar:'N1-P2 النتائج',nl:'N1-P2 RESULTATEN',af:'N1-P2 RESULTATE',fi:'N1-P2 TULOKSET',ru:'N1-P2 РЕЗУЛЬТАТЫ'},
  'N100 RESULTS': {es:'N100 RESULTADOS',fr:'N100 RÉSULTATS',de:'N100 ERGEBNISSE',zh:'N100 结果',ja:'N100 結果',pt:'N100 RESULTADOS',he:'N100 תוצאות',ar:'N100 النتائج',nl:'N100 RESULTATEN',af:'N100 RESULTATE',fi:'N100 TULOKSET',ru:'N100 РЕЗУЛЬТАТЫ'},
  'N170 RESULTS': {es:'N170 RESULTADOS',fr:'N170 RÉSULTATS',de:'N170 ERGEBNISSE',zh:'N170 结果',ja:'N170 結果',pt:'N170 RESULTADOS',he:'N170 תוצאות',ar:'N170 النتائج',nl:'N170 RESULTATEN',af:'N170 RESULTATE',fi:'N170 TULOKSET',ru:'N170 РЕЗУЛЬТАТЫ'},
  'N200 RESULTS': {es:'N200 RESULTADOS',fr:'N200 RÉSULTATS',de:'N200 ERGEBNISSE',zh:'N200 结果',ja:'N200 結果',pt:'N200 RESULTADOS',he:'N200 תוצאות',ar:'N200 النتائج',nl:'N200 RESULTATEN',af:'N200 RESULTATE',fi:'N200 TULOKSET',ru:'N200 РЕЗУЛЬТАТЫ'},
  'N2b RESULTS': {es:'N2b RESULTADOS',fr:'N2b RÉSULTATS',de:'N2b ERGEBNISSE',zh:'N2b 结果',ja:'N2b 結果',pt:'N2b RESULTADOS',he:'N2b תוצאות',ar:'N2b النتائج',nl:'N2b RESULTATEN',af:'N2b RESULTATE',fi:'N2b TULOKSET',ru:'N2b РЕЗУЛЬТАТЫ'},
  'N2pc RESULTS': {es:'N2pc RESULTADOS',fr:'N2pc RÉSULTATS',de:'N2pc ERGEBNISSE',zh:'N2pc 结果',ja:'N2pc 結果',pt:'N2pc RESULTADOS',he:'N2pc תוצאות',ar:'N2pc النتائج',nl:'N2pc RESULTATEN',af:'N2pc RESULTATE',fi:'N2pc TULOKSET',ru:'N2pc РЕЗУЛЬТАТЫ'},
  'N300 RESULTS': {es:'N300 RESULTADOS',fr:'N300 RÉSULTATS',de:'N300 ERGEBNISSE',zh:'N300 结果',ja:'N300 結果',pt:'N300 RESULTADOS',he:'N300 תוצאות',ar:'N300 النتائج',nl:'N300 RESULTATEN',af:'N300 RESULTATE',fi:'N300 TULOKSET',ru:'N300 РЕЗУЛЬТАТЫ'},
  'N400 RESULTS': {es:'N400 RESULTADOS',fr:'N400 RÉSULTATS',de:'N400 ERGEBNISSE',zh:'N400 结果',ja:'N400 結果',pt:'N400 RESULTADOS',he:'N400 תוצאות',ar:'N400 النتائج',nl:'N400 RESULTATEN',af:'N400 RESULTATE',fi:'N400 TULOKSET',ru:'N400 РЕЗУЛЬТАТЫ'},
  'NO-GO': {es:'NO-IR',fr:'NO-GO',de:'NO-GO',zh:'NO-GO',ja:'NO-GO',pt:'NÃO-IR',he:'אל-תבצע',ar:'لا-تذهب',nl:'NO-GO',af:'MOENIE-GAAN',fi:'ÄLÄ-MENE',ru:'НЕ-ИДИ'},
  'NOVEL': {es:'NOVEDOSO',fr:'NOUVEAU',de:'NEU',zh:'新异',ja:'新奇',pt:'NOVO',he:'חדש',ar:'جديد',nl:'NIEUW',af:'NUUT',fi:'UUSI',ru:'НОВЫЙ'},
  'ODDBALL': {es:'ODDBALL',fr:'ODDBALL',de:'ODDBALL',zh:'稀有刺激',ja:'オドボール',pt:'ODDBALL',he:'אודבול',ar:'أودبول',nl:'ODDBALL',af:'ODDBALL',fi:'ODDBALL',ru:'ODDBALL'},
  'ORN RESULTS': {es:'ORN RESULTADOS',fr:'ORN RÉSULTATS',de:'ORN ERGEBNISSE',zh:'ORN 结果',ja:'ORN 結果',pt:'ORN RESULTADOS',he:'ORN תוצאות',ar:'ORN النتائج',nl:'ORN RESULTATEN',af:'ORN RESULTATE',fi:'ORN TULOKSET',ru:'ORN РЕЗУЛЬТАТЫ'},
  'P1/N1 RESULTS': {es:'P1/N1 RESULTADOS',fr:'P1/N1 RÉSULTATS',de:'P1/N1 ERGEBNISSE',zh:'P1/N1 结果',ja:'P1/N1 結果',pt:'P1/N1 RESULTADOS',he:'P1/N1 תוצאות',ar:'P1/N1 النتائج',nl:'P1/N1 RESULTATEN',af:'P1/N1 RESULTATE',fi:'P1/N1 TULOKSET',ru:'P1/N1 РЕЗУЛЬТАТЫ'},
  'P300 RESULTS': {es:'P300 RESULTADOS',fr:'P300 RÉSULTATS',de:'P300 ERGEBNISSE',zh:'P300 结果',ja:'P300 結果',pt:'P300 RESULTADOS',he:'P300 תוצאות',ar:'P300 النتائج',nl:'P300 RESULTATEN',af:'P300 RESULTATE',fi:'P300 TULOKSET',ru:'P300 РЕЗУЛЬТАТЫ'},
  'P3a RESULTS': {es:'P3a RESULTADOS',fr:'P3a RÉSULTATS',de:'P3a ERGEBNISSE',zh:'P3a 结果',ja:'P3a 結果',pt:'P3a RESULTADOS',he:'P3a תוצאות',ar:'P3a النتائج',nl:'P3a RESULTATEN',af:'P3a RESULTATE',fi:'P3a TULOKSET',ru:'P3a РЕЗУЛЬТАТЫ'},
  'P50 RESULTS': {es:'P50 RESULTADOS',fr:'P50 RÉSULTATS',de:'P50 ERGEBNISSE',zh:'P50 结果',ja:'P50 結果',pt:'P50 RESULTADOS',he:'P50 תוצאות',ar:'P50 النتائج',nl:'P50 RESULTATEN',af:'P50 RESULTATE',fi:'P50 TULOKSET',ru:'P50 РЕЗУЛЬТАТЫ'},
  'P600 RESULTS': {es:'P600 RESULTADOS',fr:'P600 RÉSULTATS',de:'P600 ERGEBNISSE',zh:'P600 结果',ja:'P600 結果',pt:'P600 RESULTADOS',he:'P600 תוצאות',ar:'P600 النتائج',nl:'P600 RESULTATEN',af:'P600 RESULTATE',fi:'P600 TULOKSET',ru:'P600 РЕЗУЛЬТАТЫ'},
  'PAL RESULTS': {es:'PAL RESULTADOS',fr:'PAL RÉSULTATS',de:'PAL ERGEBNISSE',zh:'PAL 结果',ja:'PAL 結果',pt:'PAL RESULTADOS',he:'PAL תוצאות',ar:'PAL النتائج',nl:'PAL RESULTATEN',af:'PAL RESULTATE',fi:'PAL TULOKSET',ru:'PAL РЕЗУЛЬТАТЫ'},
  'PASAT RESULTS': {es:'PASAT RESULTADOS',fr:'PASAT RÉSULTATS',de:'PASAT ERGEBNISSE',zh:'PASAT 结果',ja:'PASAT 結果',pt:'PASAT RESULTADOS',he:'PASAT תוצאות',ar:'PASAT النتائج',nl:'PASAT RESULTATEN',af:'PASAT RESULTATE',fi:'PASAT TULOKSET',ru:'PASAT РЕЗУЛЬТАТЫ'},
  'PCL-5 PTSD RESULTS': {es:'PCL-5 TEPT RESULTADOS',fr:'PCL-5 TSPT RÉSULTATS',de:'PCL-5 PTBS ERGEBNISSE',zh:'PCL-5 PTSD 结果',ja:'PCL-5 PTSD 結果',pt:'PCL-5 TEPT RESULTADOS',he:'PCL-5 PTSD תוצאות',ar:'PCL-5 الكرب النتائج',nl:'PCL-5 PTSS RESULTATEN',af:'PCL-5 PTSV RESULTATE',fi:'PCL-5 PTSD TULOKSET',ru:'PCL-5 ПТСР РЕЗУЛЬТАТЫ'},
  'PHONEMIC FLUENCY RESULTS': {es:'FLUIDEZ FONÉMICA RESULTADOS',fr:'FLUIDITÉ PHONÉMIQUE RÉSULTATS',de:'PHONEM. FLÜSSIGKEIT ERGEBNISSE',zh:'语音流畅性 结果',ja:'音韻流暢性 結果',pt:'FLUÊNCIA FONÊMICA RESULTADOS',he:'שטף פונמי תוצאות',ar:'الطلاقة الصوتية النتائج',nl:'FONEM. VLOTHEID RESULTATEN',af:'FONEM. VLOTHEID RESULTATE',fi:'FONEEMINEN SUJUVUUS TULOKSET',ru:'ФОНЕТ. БЕГЛОСТЬ РЕЗУЛЬТАТЫ'},
  'PHQ-9 DEPRESSION RESULTS': {es:'PHQ-9 DEPRESIÓN RESULTADOS',fr:'PHQ-9 DÉPRESSION RÉSULTATS',de:'PHQ-9 DEPRESSION ERGEBNISSE',zh:'PHQ-9 抑郁 结果',ja:'PHQ-9うつ 結果',pt:'PHQ-9 DEPRESSÃO RESULTADOS',he:'PHQ-9 דיכאון תוצאות',ar:'PHQ-9 الاكتئاب النتائج',nl:'PHQ-9 DEPRESSIE RESULTATEN',af:'PHQ-9 DEPRESSIE RESULTATE',fi:'PHQ-9 MASENNUS TULOKSET',ru:'PHQ-9 ДЕПРЕССИЯ РЕЗУЛЬТАТЫ'},
  'PM MISS': {es:'FALLO PM',fr:'RATÉ PM',de:'PM VERFEHLT',zh:'PM未命中',ja:'PMミス',pt:'PERDIDO PM',he:'החמצת PM',ar:'فاتك PM',nl:'PM GEMIST',af:'PM-GEMIS',fi:'PM-OHI',ru:'ПРОСП.-ПРОП.'},
  'PMN RESULTS': {es:'PMN RESULTADOS',fr:'PMN RÉSULTATS',de:'PMN ERGEBNISSE',zh:'PMN 结果',ja:'PMN 結果',pt:'PMN RESULTADOS',he:'PMN תוצאות',ar:'PMN النتائج',nl:'PMN RESULTATEN',af:'PMN RESULTATE',fi:'PMN TULOKSET',ru:'PMN РЕЗУЛЬТАТЫ'},
  'PREPARE': {es:'PREPARAR',fr:'PRÉPARER',de:'VORBEREITEN',zh:'准备',ja:'準備',pt:'PREPARE-SE',he:'הכנה',ar:'استعد',nl:'BEREID VOOR',af:'BEREI VOOR',fi:'VALMISTAUDU',ru:'ПРИГОТОВЬТЕСЬ'},
  'PRIME': {es:'PREVIO',fr:'AMORCE',de:'PRIMING',zh:'启动',ja:'プライム',pt:'PRIMING',he:'הכנה',ar:'تمهيد',nl:'PRIME',af:'PRIME',fi:'ALUKE',ru:'ПРАЙМ'},
  'PROBE': {es:'SONDA',fr:'SONDE',de:'SONDE',zh:'探查',ja:'プローブ',pt:'SONDA',he:'בוחן',ar:'فحص',nl:'PROBE',af:'PROBE',fi:'TESTAUS',ru:'ЗОНД'},
  'PROSPECTIVE MEMORY RESULTS': {es:'MEMORIA PROSPECTIVA RESULTADOS',fr:'MÉMOIRE PROSPECTIVE RÉSULTATS',de:'PROSP. GEDÄCHTNIS ERGEBNISSE',zh:'前瞻记忆 结果',ja:'展望記憶 結果',pt:'MEMÓRIA PROSPECTIVA RESULTADOS',he:'זיכרון פרוספקטיבי תוצאות',ar:'الذاكرة المستقبلية النتائج',nl:'PROSPECT. GEHEUGEN RESULTATEN',af:'PROSPEKT. GEHEUE RESULTATE',fi:'PROSPEKT. MUISTI TULOKSET',ru:'ПРОСПЕКТ. ПАМЯТЬ РЕЗУЛЬТАТЫ'},
  'Pd RESULTS': {es:'Pd RESULTADOS',fr:'Pd RÉSULTATS',de:'Pd ERGEBNISSE',zh:'Pd 结果',ja:'Pd 結果',pt:'Pd RESULTADOS',he:'Pd תוצאות',ar:'Pd النتائج',nl:'Pd RESULTATEN',af:'Pd RESULTATE',fi:'Pd TULOKSET',ru:'Pd РЕЗУЛЬТАТЫ'},
  'Pe RESULTS': {es:'Pe RESULTADOS',fr:'Pe RÉSULTATS',de:'Pe ERGEBNISSE',zh:'Pe 结果',ja:'Pe 結果',pt:'Pe RESULTADOS',he:'Pe תוצאות',ar:'Pe النتائج',nl:'Pe RESULTATEN',af:'Pe RESULTATE',fi:'Pe TULOKSET',ru:'Pe РЕЗУЛЬТАТЫ'},
  'RAVLT RESULTS': {es:'RAVLT RESULTADOS',fr:'RAVLT RÉSULTATS',de:'RAVLT ERGEBNISSE',zh:'RAVLT 结果',ja:'RAVLT 結果',pt:'RAVLT RESULTADOS',he:'RAVLT תוצאות',ar:'RAVLT النتائج',nl:'RAVLT RESULTATEN',af:'RAVLT RESULTATE',fi:'RAVLT TULOKSET',ru:'RAVLT РЕЗУЛЬТАТЫ'},
  'READINESS POTENTIAL RESULTS': {es:'POT. PREPARACIÓN RESULTADOS',fr:'POT. PRÉPARATION RÉSULTATS',de:'BEREITSCHAFTSPOTENTIAL ERGEBNISSE',zh:'准备电位 结果',ja:'準備電位 結果',pt:'POT. PREPARAÇÃO RESULTADOS',he:'פוט. מוכנות תוצאות',ar:'كمون التهيؤ النتائج',nl:'GEREEDH. POTENTIAAL RESULTATEN',af:'GEREED. POTENSIAAL RESULTATE',fi:'VALMIUSPOTENTIAALI TULOKSET',ru:'ПОТЕНЦИАЛ ГОТОВНОСТИ РЕЗУЛЬТАТЫ'},
  'READING': {es:'LECTURA',fr:'LECTURE',de:'LESEN',zh:'阅读',ja:'読み取り',pt:'LEITURA',he:'קריאה',ar:'قراءة',nl:'AFLEZEN',af:'LEES',fi:'LUKU',ru:'СЧИТЫВАНИЕ'},
  'READY': {es:'LISTO',fr:'PRÊT',de:'BEREIT',zh:'准备好',ja:'準備完了',pt:'PRONTO',he:'מוכן',ar:'جاهز',nl:'KLAAR',af:'GEREED',fi:'VALMIS',ru:'ГОТОВ'},
  'RECALL': {es:'RECUPERACIÓN',fr:'RAPPEL',de:'ABRUF',zh:'回忆',ja:'再生',pt:'EVOCAÇÃO',he:'היזכרות',ar:'استرجاع',nl:'OPHALEN',af:'ONTHOU',fi:'PALAUTUS',ru:'ВОСПРОИЗВЕДЕНИЕ'},
  'RECALL ': {es:'RECUPERACIÓN ',fr:'RAPPEL ',de:'ABRUF ',zh:'回忆 ',ja:'再生 ',pt:'EVOCAÇÃO ',he:'היזכרות ',ar:'استرجاع ',nl:'OPHALEN ',af:'ONTHOU ',fi:'PALAUTUS ',ru:'ВОСПРОИЗВ. '},
  'RECOGNITION': {es:'RECONOCIMIENTO',fr:'RECONNAISSANCE',de:'WIEDERERKENNEN',zh:'识别',ja:'再認',pt:'RECONHECIMENTO',he:'זיהוי',ar:'تعرف',nl:'HERKENNING',af:'HERKENNING',fi:'TUNNISTUS',ru:'УЗНАВАНИЕ'},
  'RECOGNITION RESULTS': {es:'RECONOCIMIENTO RESULTADOS',fr:'RECONNAISSANCE RÉSULTATS',de:'WIEDERERKENNEN ERGEBNISSE',zh:'识别 结果',ja:'再認 結果',pt:'RECONHECIMENTO RESULTADOS',he:'זיהוי תוצאות',ar:'تعرف النتائج',nl:'HERKENNING RESULTATEN',af:'HERKENNING RESULTATE',fi:'TUNNISTUS TULOKSET',ru:'УЗНАВАНИЕ РЕЗУЛЬТАТЫ'},
  'RECORDING': {es:'GRABANDO',fr:'ENREGISTREMENT',de:'AUFNAHME',zh:'录制中',ja:'録音中',pt:'GRAVANDO',he:'מקליט',ar:'يسجل',nl:'OPNAME',af:'OPNAME',fi:'NAUHOITUS',ru:'ЗАПИСЬ'},
  'RESPOND': {es:'RESPONDE',fr:'RÉPONDRE',de:'ANTWORTEN',zh:'反应',ja:'反応',pt:'RESPONDA',he:'הגב',ar:'استجب',nl:'REAGEER',af:'REAGEER',fi:'VASTAA',ru:'ОТВЕЧАЙТЕ'},
  'REST': {es:'DESCANSO',fr:'REPOS',de:'PAUSE',zh:'休息',ja:'休憩',pt:'DESCANSO',he:'מנוחה',ar:'استرح',nl:'RUST',af:'RUS',fi:'TAUKO',ru:'ОТДЫХ'},
  'RETENTION': {es:'RETENCIÓN',fr:'RÉTENTION',de:'BEHALTEN',zh:'保持',ja:'保持',pt:'RETENÇÃO',he:'שימור',ar:'احتفاظ',nl:'BEHOUD',af:'BEHOUD',fi:'SÄILYTYS',ru:'УДЕРЖАНИЕ'},
  'REV ': {es:'REV ',fr:'INV ',de:'UMK ',zh:'反 ',ja:'反 ',pt:'INV ',he:'הפיכה ',ar:'عكس ',nl:'INV ',af:'OMK ',fi:'KÄÄNT ',ru:'ИНВ '},
  'REV 0/': {es:'REV 0/',fr:'INV 0/',de:'UMK 0/',zh:'反 0/',ja:'反 0/',pt:'INV 0/',he:'הפיכה 0/',ar:'عكس 0/',nl:'INV 0/',af:'OMK 0/',fi:'KÄÄNT 0/',ru:'ИНВ 0/'},
  'RMET RESULTS': {es:'RMET RESULTADOS',fr:'RMET RÉSULTATS',de:'RMET ERGEBNISSE',zh:'RMET 结果',ja:'RMET 結果',pt:'RMET RESULTADOS',he:'RMET תוצאות',ar:'RMET النتائج',nl:'RMET RESULTATEN',af:'RMET RESULTATE',fi:'RMET TULOKSET',ru:'RMET РЕЗУЛЬТАТЫ'},
  'RON RESULTS': {es:'RON RESULTADOS',fr:'RON RÉSULTATS',de:'RON ERGEBNISSE',zh:'RON 结果',ja:'RON 結果',pt:'RON RESULTADOS',he:'RON תוצאות',ar:'RON النتائج',nl:'RON RESULTATEN',af:'RON RESULTATE',fi:'RON TULOKSET',ru:'RON РЕЗУЛЬТАТЫ'},
  'RT DISTRIBUTION': {es:'DISTRIBUCIÓN RT',fr:'DISTRIBUTION TR',de:'RT-VERTEILUNG',zh:'RT 分布',ja:'RT分布',pt:'DISTRIBUIÇÃO RT',he:'התפלגות RT',ar:'توزيع RT',nl:'RT-VERDELING',af:'RT-VERSPREIDING',fi:'RT-JAKAUMA',ru:'РАСПРЕД. RT'},
  'RewP RESULTS': {es:'RewP RESULTADOS',fr:'RewP RÉSULTATS',de:'RewP ERGEBNISSE',zh:'RewP 结果',ja:'RewP 結果',pt:'RewP RESULTADOS',he:'RewP תוצאות',ar:'RewP النتائج',nl:'RewP RESULTATEN',af:'RewP RESULTATE',fi:'RewP TULOKSET',ru:'RewP РЕЗУЛЬТАТЫ'},
  'S1': {es:'S1',fr:'S1',de:'S1',zh:'S1',ja:'S1',pt:'S1',he:'S1',ar:'S1',nl:'S1',af:'S1',fi:'S1',ru:'S1'},
  'S2': {es:'S2',fr:'S2',de:'S2',zh:'S2',ja:'S2',pt:'S2',he:'S2',ar:'S2',nl:'S2',af:'S2',fi:'S2',ru:'S2'},
  'SART RESULTS': {es:'SART RESULTADOS',fr:'SART RÉSULTATS',de:'SART ERGEBNISSE',zh:'SART 结果',ja:'SART 結果',pt:'SART RESULTADOS',he:'SART תוצאות',ar:'SART النتائج',nl:'SART RESULTATEN',af:'SART RESULTATE',fi:'SART TULOKSET',ru:'SART РЕЗУЛЬТАТЫ'},
  'SCP RESULTS': {es:'SCP RESULTADOS',fr:'SCP RÉSULTATS',de:'SCP ERGEBNISSE',zh:'SCP 结果',ja:'SCP 結果',pt:'SCP RESULTADOS',he:'SCP תוצאות',ar:'SCP النتائج',nl:'SCP RESULTATEN',af:'SCP RESULTATE',fi:'SCP TULOKSET',ru:'SCP РЕЗУЛЬТАТЫ'},
  'SEARCH': {es:'BUSCAR',fr:'CHERCHER',de:'SUCHEN',zh:'搜索',ja:'検索',pt:'BUSCAR',he:'חיפוש',ar:'بحث',nl:'ZOEK',af:'SOEK',fi:'ETSI',ru:'ПОИСК'},
  'SEASHORE RHYTHM RESULTS': {es:'RITMO SEASHORE RESULTADOS',fr:'RYTHME SEASHORE RÉSULTATS',de:'SEASHORE-RHYTHMUS ERGEBNISSE',zh:'Seashore 节奏 结果',ja:'Seashoreリズム 結果',pt:'RITMO SEASHORE RESULTADOS',he:'מקצב Seashore תוצאות',ar:'إيقاع Seashore النتائج',nl:'SEASHORE-RITME RESULTATEN',af:'SEASHORE-RITME RESULTATE',fi:'SEASHORE-RYTMI TULOKSET',ru:'РИТМ СИШОРА РЕЗУЛЬТАТЫ'},
  'SEMANTIC FLUENCY RESULTS': {es:'FLUIDEZ SEMÁNTICA RESULTADOS',fr:'FLUIDITÉ SÉMANTIQUE RÉSULTATS',de:'SEMANT. FLÜSSIGKEIT ERGEBNISSE',zh:'语义流畅性 结果',ja:'意味流暢性 結果',pt:'FLUÊNCIA SEMÂNTICA RESULTADOS',he:'שטף סמנטי תוצאות',ar:'الطلاقة الدلالية النتائج',nl:'SEMANT. VLOTHEID RESULTATEN',af:'SEMANT. VLOTHEID RESULTATE',fi:'SEMANT. SUJUVUUS TULOKSET',ru:'СЕМАНТ. БЕГЛОСТЬ РЕЗУЛЬТАТЫ'},
  'SHORT DELAY FREE RECALL': {es:'RECUPERACIÓN LIBRE CORTA',fr:'RAPPEL LIBRE COURT',de:'KURZER FREIER ABRUF',zh:'短延迟自由回忆',ja:'短遅延自由再生',pt:'EVOCAÇÃO LIVRE CURTA',he:'היזכרות חופשית קצרה',ar:'استرجاع حر قصير',nl:'KORT VRIJ OPHALEN',af:'KORT VRYE ONTHOU',fi:'LYHYT VAPAA PALAUTUS',ru:'КОРОТК. ОТСРОЧ. ВОСПР.'},
  'SNELLEN RESULTS': {es:'SNELLEN RESULTADOS',fr:'SNELLEN RÉSULTATS',de:'SNELLEN ERGEBNISSE',zh:'SNELLEN 结果',ja:'SNELLEN 結果',pt:'SNELLEN RESULTADOS',he:'SNELLEN תוצאות',ar:'SNELLEN النتائج',nl:'SNELLEN RESULTATEN',af:'SNELLEN RESULTATE',fi:'SNELLEN TULOKSET',ru:'SNELLEN РЕЗУЛЬТАТЫ'},
  'SOA ': {es:'SOA ',fr:'SOA ',de:'SOA ',zh:'SOA ',ja:'SOA ',pt:'SOA ',he:'SOA ',ar:'SOA ',nl:'SOA ',af:'SOA ',fi:'SOA ',ru:'SOA '},
  'SOURCE MEMORY RESULTS': {es:'MEMORIA FUENTE RESULTADOS',fr:'MÉMOIRE SOURCE RÉSULTATS',de:'QUELLENGEDÄCHTNIS ERGEBNISSE',zh:'来源记忆 结果',ja:'ソース記憶 結果',pt:'MEMÓRIA FONTE RESULTADOS',he:'זיכרון מקור תוצאות',ar:'ذاكرة المصدر النتائج',nl:'BRONGEHEUGEN RESULTATEN',af:'BRONGEHEUE RESULTATE',fi:'LÄHDEMUISTI TULOKSET',ru:'ПАМЯТЬ ИСТОЧНИКА РЕЗУЛЬТАТЫ'},
  'SPATIAL WM RESULTS': {es:'MT ESPACIAL RESULTADOS',fr:'MT SPATIALE RÉSULTATS',de:'RÄUMLICHES ARBG ERGEBNISSE',zh:'空间工作记忆 结果',ja:'空間WM 結果',pt:'MT ESPACIAL RESULTADOS',he:'זת"ע מרחבית תוצאות',ar:'الذاكرة العاملة المكانية النتائج',nl:'RUIMTELIJK WG RESULTATEN',af:'RUIMTELIKE WG RESULTATE',fi:'SPATIAALINEN TYÖM TULOKSET',ru:'ПРОСТР. РП РЕЗУЛЬТАТЫ'},
  'SSVEP RESULTS': {es:'SSVEP RESULTADOS',fr:'SSVEP RÉSULTATS',de:'SSVEP ERGEBNISSE',zh:'SSVEP 结果',ja:'SSVEP 結果',pt:'SSVEP RESULTADOS',he:'SSVEP תוצאות',ar:'SSVEP النتائج',nl:'SSVEP RESULTATEN',af:'SSVEP RESULTATE',fi:'SSVEP TULOKSET',ru:'SSVEP РЕЗУЛЬТАТЫ'},
  'STANDARD': {es:'ESTÁNDAR',fr:'STANDARD',de:'STANDARD',zh:'标准',ja:'標準',pt:'PADRÃO',he:'סטנדרט',ar:'قياسي',nl:'STANDAARD',af:'STANDAARD',fi:'STANDARDI',ru:'СТАНДАРТ'},
  'STAR CANCELLATION — RESULTS': {es:'CANCELACIÓN ESTRELLAS — RESULTADOS',fr:'BARRAGE ÉTOILES — RÉSULTATS',de:'STERN-DURCHSTREICHEN — ERGEBNISSE',zh:'划星测试 — 结果',ja:'スター抹消 — 結果',pt:'CANCELAMENTO ESTRELAS — RESULTADOS',he:'ביטול כוכבים — תוצאות',ar:'شطب النجوم — النتائج',nl:'STER-DOORHALING — RESULTATEN',af:'STER-DEURHAAL — RESULTATE',fi:'TÄHTIYLIVIIVAUS — TULOKSET',ru:'ВЫЧЁРК. ЗВЁЗД — РЕЗУЛЬТАТЫ'},
  'STERNBERG RESULTS': {es:'STERNBERG RESULTADOS',fr:'STERNBERG RÉSULTATS',de:'STERNBERG ERGEBNISSE',zh:'STERNBERG 结果',ja:'STERNBERG 結果',pt:'STERNBERG RESULTADOS',he:'STERNBERG תוצאות',ar:'STERNBERG النتائج',nl:'STERNBERG RESULTATEN',af:'STERNBERG RESULTATE',fi:'STERNBERG TULOKSET',ru:'STERNBERG РЕЗУЛЬТАТЫ'},
  'STOP SIGNAL RESULTS': {es:'SEÑAL DE PARO RESULTADOS',fr:'SIGNAL D\'ARRÊT RÉSULTATS',de:'STOPP-SIGNAL ERGEBNISSE',zh:'停止信号 结果',ja:'ストップ信号 結果',pt:'SINAL DE PARADA RESULTADOS',he:'אות עצירה תוצאות',ar:'إشارة التوقف النتائج',nl:'STOPSIGNAAL RESULTATEN',af:'STOPSEIN RESULTATE',fi:'PYSÄHDYSSIGNAALI TULOKSET',ru:'СИГНАЛ СТОП РЕЗУЛЬТАТЫ'},
  'STROOP RESULTS': {es:'STROOP RESULTADOS',fr:'STROOP RÉSULTATS',de:'STROOP ERGEBNISSE',zh:'STROOP 结果',ja:'STROOP 結果',pt:'STROOP RESULTADOS',he:'STROOP תוצאות',ar:'STROOP النتائج',nl:'STROOP RESULTATEN',af:'STROOP RESULTATE',fi:'STROOP TULOKSET',ru:'STROOP РЕЗУЛЬТАТЫ'},
  'STUDY': {es:'ESTUDIO',fr:'ÉTUDE',de:'LERNEN',zh:'学习',ja:'学習',pt:'ESTUDO',he:'לימוד',ar:'دراسة',nl:'STUDIE',af:'STUDIE',fi:'OPISKELU',ru:'ИЗУЧЕНИЕ'},
  'STUDY ': {es:'ESTUDIO ',fr:'ÉTUDE ',de:'LERNEN ',zh:'学习 ',ja:'学習 ',pt:'ESTUDO ',he:'לימוד ',ar:'دراسة ',nl:'STUDIE ',af:'STUDIE ',fi:'OPISKELU ',ru:'ИЗУЧЕНИЕ '},
  'SUBITIZING RESULTS': {es:'SUBITIZACIÓN RESULTADOS',fr:'SUBITISATION RÉSULTATS',de:'SUBITIZING ERGEBNISSE',zh:'瞬识 结果',ja:'サビタイジング 結果',pt:'SUBITIZAÇÃO RESULTADOS',he:'סוביטיזציה תוצאות',ar:'الإدراك السريع النتائج',nl:'SUBITIZING RESULTATEN',af:'SUBITISING RESULTATE',fi:'SUBITAATIO TULOKSET',ru:'СУБИТАЦИЯ РЕЗУЛЬТАТЫ'},
  'SYMBOL SEARCH RESULTS': {es:'BÚSQUEDA SÍMBOLOS RESULTADOS',fr:'RECHERCHE SYMBOLES RÉSULTATS',de:'SYMBOLSUCHE ERGEBNISSE',zh:'符号搜索 结果',ja:'記号探し 結果',pt:'BUSCA SÍMBOLOS RESULTADOS',he:'חיפוש סמלים תוצאות',ar:'بحث الرموز النتائج',nl:'SYMBOOLZOEKEN RESULTATEN',af:'SIMBOOLSOEK RESULTATE',fi:'SYMBOLIHAKU TULOKSET',ru:'ПОИСК СИМВОЛОВ РЕЗУЛЬТАТЫ'},
  'T/O': {es:'T/O',fr:'T/O',de:'T/O',zh:'T/O',ja:'T/O',pt:'T/O',he:'T/O',ar:'T/O',nl:'T/O',af:'T/O',fi:'T/O',ru:'T/O'},
  'TARGET': {es:'OBJETIVO',fr:'CIBLE',de:'ZIEL',zh:'目标',ja:'ターゲット',pt:'ALVO',he:'מטרה',ar:'هدف',nl:'DOEL',af:'DOEL',fi:'KOHDE',ru:'ЦЕЛЬ'},
  'TARGET TONE': {es:'TONO OBJETIVO',fr:'TON CIBLE',de:'ZIELTON',zh:'目标音',ja:'ターゲット音',pt:'TOM-ALVO',he:'צליל מטרה',ar:'نغمة الهدف',nl:'DOELTOON',af:'DOELTOON',fi:'KOHDESÄVY',ru:'ЦЕЛЕВОЙ ТОН'},
  'TARGET: ': {es:'OBJETIVO: ',fr:'CIBLE: ',de:'ZIEL: ',zh:'目标：',ja:'ターゲット: ',pt:'ALVO: ',he:'מטרה: ',ar:'هدف: ',nl:'DOEL: ',af:'DOEL: ',fi:'KOHDE: ',ru:'ЦЕЛЬ: '},
  'TASK SWITCH RESULTS': {es:'CAMBIO TAREA RESULTADOS',fr:'CHANGEMENT TÂCHE RÉSULTATS',de:'AUFGABENWECHSEL ERGEBNISSE',zh:'任务切换 结果',ja:'タスク切替 結果',pt:'TROCA TAREFA RESULTADOS',he:'מעבר משימות תוצאות',ar:'تبديل المهام النتائج',nl:'TAAKWISSEL RESULTATEN',af:'TAAKWISSELING RESULTATE',fi:'TEHTÄVÄNVAIHTO TULOKSET',ru:'ПЕРЕКЛ. ЗАДАЧ РЕЗУЛЬТАТЫ'},
  'TEMPORAL ORDER JUDGMENT RESULTS': {es:'JUICIO ORDEN TEMPORAL RESULTADOS',fr:'JUGEMENT ORDRE TEMP RÉSULTATS',de:'ZEITORDNUNGSURTEIL ERGEBNISSE',zh:'时间顺序判断 结果',ja:'時間順序判断 結果',pt:'JULGAMENTO TEMPORAL RESULTADOS',he:'שיפוט סדר זמני תוצאות',ar:'حكم الترتيب الزمني النتائج',nl:'TIJDSORDE-OORDEEL RESULTATEN',af:'TYDORDE-OORDEEL RESULTATE',fi:'AIKAJÄRJESTYS TULOKSET',ru:'СУЖД. ВРЕМ. ПОРЯДКА РЕЗУЛЬТАТЫ'},
  'TEST': {es:'PRUEBA',fr:'TEST',de:'TEST',zh:'测试',ja:'テスト',pt:'TESTE',he:'מבחן',ar:'اختبار',nl:'TEST',af:'TOETS',fi:'TESTI',ru:'ТЕСТ'},
  'TEST ': {es:'PRUEBA ',fr:'TEST ',de:'TEST ',zh:'测试 ',ja:'テスト ',pt:'TESTE ',he:'מבחן ',ar:'اختبار ',nl:'TEST ',af:'TOETS ',fi:'TESTI ',ru:'ТЕСТ '},
  'THETA/ALPHA RESULTS': {es:'TETA/ALFA RESULTADOS',fr:'THÊTA/ALPHA RÉSULTATS',de:'THETA/ALPHA ERGEBNISSE',zh:'θ/α 结果',ja:'θ/α 結果',pt:'TETA/ALFA RESULTADOS',he:'תטא/אלפא תוצאות',ar:'ثيتا/ألفا النتائج',nl:'THETA/ALFA RESULTATEN',af:'THETA/ALFA RESULTATE',fi:'THETA/ALFA TULOKSET',ru:'ТЕТА/АЛЬФА РЕЗУЛЬТАТЫ'},
  'TOO SLOW': {es:'DEMASIADO LENTO',fr:'TROP LENT',de:'ZU LANGSAM',zh:'太慢',ja:'遅すぎ',pt:'MUITO LENTO',he:'איטי מדי',ar:'بطيء جدًا',nl:'TE TRAAG',af:'TE STADIG',fi:'LIIAN HIDAS',ru:'СЛИШКОМ МЕДЛЕННО'},
  'TOO SOON': {es:'DEMASIADO PRONTO',fr:'TROP TÔT',de:'ZU FRÜH',zh:'太早',ja:'早すぎ',pt:'MUITO CEDO',he:'מוקדם מדי',ar:'مبكر جدًا',nl:'TE VROEG',af:'TE VROEG',fi:'LIIAN VARHAIN',ru:'СЛИШКОМ РАНО'},
  'TOWER OF LONDON RESULTS': {es:'TORRE DE LONDRES RESULTADOS',fr:'TOUR DE LONDRES RÉSULTATS',de:'TURM VON LONDON ERGEBNISSE',zh:'伦敦塔 结果',ja:'ロンドン塔 結果',pt:'TORRE DE LONDRES RESULTADOS',he:'מגדל לונדון תוצאות',ar:'برج لندن النتائج',nl:'TOREN VAN LONDEN RESULTATEN',af:'TORING VAN LONDEN RESULTATE',fi:'LONTOON TORNI TULOKSET',ru:'БАШНЯ ЛОНДОНА РЕЗУЛЬТАТЫ'},
  'TRIAL ': {es:'ENSAYO ',fr:'ESSAI ',de:'VERSUCH ',zh:'试验 ',ja:'試行 ',pt:'ENSAIO ',he:'ניסוי ',ar:'تجربة ',nl:'PROEF ',af:'PROEF ',fi:'KOE ',ru:'ПРОБА '},
  'UFOV RESULTS': {es:'UFOV RESULTADOS',fr:'UFOV RÉSULTATS',de:'UFOV ERGEBNISSE',zh:'UFOV 结果',ja:'UFOV 結果',pt:'UFOV RESULTADOS',he:'UFOV תוצאות',ar:'UFOV النتائج',nl:'UFOV RESULTATEN',af:'UFOV RESULTATE',fi:'UFOV TULOKSET',ru:'UFOV РЕЗУЛЬТАТЫ'},
  'VPP RESULTS': {es:'VPP RESULTADOS',fr:'VPP RÉSULTATS',de:'VPP ERGEBNISSE',zh:'VPP 结果',ja:'VPP 結果',pt:'VPP RESULTADOS',he:'VPP תוצאות',ar:'VPP النتائج',nl:'VPP RESULTATEN',af:'VPP RESULTATE',fi:'VPP TULOKSET',ru:'VPP РЕЗУЛЬТАТЫ'},
  'WAIT': {es:'ESPERA',fr:'ATTENDRE',de:'WARTEN',zh:'等待',ja:'お待ちください',pt:'AGUARDE',he:'המתן',ar:'انتظر',nl:'WACHT',af:'WAG',fi:'ODOTA',ru:'ОЖИДАЙТЕ'}
};

// tr(s) — translate a runtime string to currentLang, fall back to s itself.
// Convention: callers that produce runtime text via textContent should wrap
// the literal in tr() so that language-switch + re-render shows the
// translation. New strings simply get added to RUNTIME_I18N.
function tr(s){
  if(typeof s !== 'string') return s;
  if(typeof currentLang === 'undefined' || currentLang === 'en') return s;
  var entry = RUNTIME_I18N[s];
  return (entry && entry[currentLang]) || s;
}

;Object.assign(RUNTIME_I18N, {
  "balloon →":{"es": "globo →", "fr": "ballon →", "de": "Ballon →", "zh": "气球 →", "ja": "風船 →", "pt": "balão →", "he": "→ בלון", "ar": "→ بالون", "nl": "ballon →", "af": "ballon →", "fi": "pallo →", "ru": "шарик →"},
  "size":{"es": "tamaño", "fr": "taille", "de": "Größe", "zh": "大小", "ja": "サイズ", "pt": "tamanho", "he": "גודל", "ar": "حجم", "nl": "grootte", "af": "grootte", "fi": "koko", "ru": "размер"},
  "or":{"es": "o", "fr": "ou", "de": "oder", "zh": "或", "ja": "または", "pt": "ou", "he": "או", "ar": "أو", "nl": "of", "af": "of", "fi": "tai", "ru": "или"}
});

;Object.assign(RUNTIME_I18N, {
  "PROBABILISTIC REVERSAL LEARNING":{"es": "APRENDIZAJE DE REVERSIÓN PROBABILÍSTICA", "fr": "APPRENTISSAGE PAR INVERSION PROBABILISTE", "de": "PROBABILISTISCHES UMKEHRLERNEN", "zh": "概率反转学习", "ja": "確率的逆転学習", "pt": "APRENDIZAGEM DE REVERSÃO PROBABILÍSTICA", "he": "למידת היפוך הסתברותית", "ar": "التعلّم العكسي الاحتمالي", "nl": "PROBABILISTISCH OMKEERLEREN", "af": "PROBABILISTIESE OMKEERLEER", "fi": "TODENNÄKÖISYYSPOHJAINEN KÄÄNTEISOPPIMINEN", "ru": "ВЕРОЯТНОСТНОЕ РЕВЕРСИВНОЕ ОБУЧЕНИЕ"},
  "DELAY DISCOUNTING":{"es": "DESCUENTO POR DEMORA", "fr": "DÉVALUATION TEMPORELLE", "de": "VERZÖGERUNGSDISKONTIERUNG", "zh": "延迟折扣", "ja": "遅延割引", "pt": "DESCONTO POR ATRASO", "he": "הנחת עיכוב", "ar": "خصم التأخير", "nl": "UITGESTELDE VERDISCONTERING", "af": "VERTRAGINGSAFSLAG", "fi": "VIIVÄSTYSDISKONTTAUS", "ru": "ДИСКОНТИРОВАНИЕ ОТСРОЧКИ"},
  "SERIAL REACTION TIME TASK":{"es": "TAREA DE TIEMPO DE REACCIÓN EN SERIE", "fr": "TÂCHE DE TEMPS DE RÉACTION SÉRIEL", "de": "SERIELLE REAKTIONSZEIT-AUFGABE", "zh": "序列反应时任务", "ja": "系列反応時間課題", "pt": "TAREFA DE TEMPO DE REAÇÃO SERIAL", "he": "מטלת זמן תגובה סדרתי", "ar": "مهمة زمن الرجع التسلسلي", "nl": "SERIËLE REACTIETIJDTAAK", "af": "SERIËLE REAKSIETYDTAAK", "fi": "SARJALLINEN REAKTIOAIKATEHTÄVÄ", "ru": "ЗАДАЧА СЕРИЙНОГО ВРЕМЕНИ РЕАКЦИИ"},
  "BALLOON ANALOGUE RISK TASK":{"es": "TAREA DE RIESGO DEL GLOBO (BART)", "fr": "TÂCHE DE RISQUE DU BALLON (BART)", "de": "BALLON-RISIKO-AUFGABE (BART)", "zh": "气球模拟风险任务", "ja": "風船リスク課題", "pt": "TAREFA DE RISCO DO BALÃO (BART)", "he": "מטלת סיכון הבלון (BART)", "ar": "مهمة خطر البالون (BART)", "nl": "BALLON-RISICOTAAK (BART)", "af": "BALLON-RISIKOTAAK (BART)", "fi": "ILMAPALLON RISKITEHTÄVÄ (BART)", "ru": "ЗАДАЧА РИСКА С ШАРИКОМ (BART)"},
  "OPERATION SPAN":{"es": "AMPLITUD DE OPERACIONES", "fr": "EMPAN OPÉRATOIRE", "de": "OPERATIONSSPANNE", "zh": "运算广度", "ja": "オペレーションスパン", "pt": "AMPLITUDE OPERACIONAL", "he": "מוטת פעולות", "ar": "مدى العمليات", "nl": "OPERATIESPANNE", "af": "OPERASIESPAN", "fi": "OPERAATIOJÄNNE", "ru": "ОПЕРАЦИОННЫЙ ОБЪЁМ"},
  "TEMPORAL BISECTION":{"es": "BISECCIÓN TEMPORAL", "fr": "BISSECTION TEMPORELLE", "de": "ZEITLICHE BISEKTION", "zh": "时距二分", "ja": "時間二分", "pt": "BISSECÇÃO TEMPORAL", "he": "חציית זמן", "ar": "التنصيف الزمني", "nl": "TEMPORELE BISECTIE", "af": "TEMPORALE BISEKSIE", "fi": "AJALLINEN BISEKTIO", "ru": "ВРЕМЕННАЯ БИСЕКЦИЯ"},
  "PROBABILISTIC REVERSAL LEARNING RESULTS":{"es": "APRENDIZAJE DE REVERSIÓN PROBABILÍSTICA RESULTADOS", "fr": "APPRENTISSAGE PAR INVERSION PROBABILISTE RÉSULTATS", "de": "PROBABILISTISCHES UMKEHRLERNEN ERGEBNISSE", "zh": "概率反转学习 结果", "ja": "確率的逆転学習 結果", "pt": "APRENDIZAGEM DE REVERSÃO PROBABILÍSTICA RESULTADOS", "he": "למידת היפוך הסתברותית תוצאות", "ar": "التعلّم العكسي الاحتمالي النتائج", "nl": "PROBABILISTISCH OMKEERLEREN RESULTATEN", "af": "PROBABILISTIESE OMKEERLEER RESULTATE", "fi": "TODENNÄKÖISYYSPOHJAINEN KÄÄNTEISOPPIMINEN TULOKSET", "ru": "ВЕРОЯТНОСТНОЕ РЕВЕРСИВНОЕ ОБУЧЕНИЕ РЕЗУЛЬТАТЫ"},
  "DELAY DISCOUNTING RESULTS":{"es": "DESCUENTO POR DEMORA RESULTADOS", "fr": "DÉVALUATION TEMPORELLE RÉSULTATS", "de": "VERZÖGERUNGSDISKONTIERUNG ERGEBNISSE", "zh": "延迟折扣 结果", "ja": "遅延割引 結果", "pt": "DESCONTO POR ATRASO RESULTADOS", "he": "הנחת עיכוב תוצאות", "ar": "خصم التأخير النتائج", "nl": "UITGESTELDE VERDISCONTERING RESULTATEN", "af": "VERTRAGINGSAFSLAG RESULTATE", "fi": "VIIVÄSTYSDISKONTTAUS TULOKSET", "ru": "ДИСКОНТИРОВАНИЕ ОТСРОЧКИ РЕЗУЛЬТАТЫ"},
  "SERIAL REACTION TIME RESULTS":{"es": "TAREA DE TIEMPO DE REACCIÓN EN SERIE RESULTADOS", "fr": "TÂCHE DE TEMPS DE RÉACTION SÉRIEL RÉSULTATS", "de": "SERIELLE REAKTIONSZEIT-AUFGABE ERGEBNISSE", "zh": "序列反应时任务 结果", "ja": "系列反応時間課題 結果", "pt": "TAREFA DE TEMPO DE REAÇÃO SERIAL RESULTADOS", "he": "מטלת זמן תגובה סדרתי תוצאות", "ar": "مهمة زمن الرجع التسلسلي النتائج", "nl": "SERIËLE REACTIETIJDTAAK RESULTATEN", "af": "SERIËLE REAKSIETYDTAAK RESULTATE", "fi": "SARJALLINEN REAKTIOAIKATEHTÄVÄ TULOKSET", "ru": "ЗАДАЧА СЕРИЙНОГО ВРЕМЕНИ РЕАКЦИИ РЕЗУЛЬТАТЫ"},
  "BALLOON ANALOGUE RISK TASK RESULTS":{"es": "TAREA DE RIESGO DEL GLOBO (BART) RESULTADOS", "fr": "TÂCHE DE RISQUE DU BALLON (BART) RÉSULTATS", "de": "BALLON-RISIKO-AUFGABE (BART) ERGEBNISSE", "zh": "气球模拟风险任务 结果", "ja": "風船リスク課題 結果", "pt": "TAREFA DE RISCO DO BALÃO (BART) RESULTADOS", "he": "מטלת סיכון הבלון (BART) תוצאות", "ar": "مهمة خطر البالون (BART) النتائج", "nl": "BALLON-RISICOTAAK (BART) RESULTATEN", "af": "BALLON-RISIKOTAAK (BART) RESULTATE", "fi": "ILMAPALLON RISKITEHTÄVÄ (BART) TULOKSET", "ru": "ЗАДАЧА РИСКА С ШАРИКОМ (BART) РЕЗУЛЬТАТЫ"},
  "OPERATION SPAN RESULTS":{"es": "AMPLITUD DE OPERACIONES RESULTADOS", "fr": "EMPAN OPÉRATOIRE RÉSULTATS", "de": "OPERATIONSSPANNE ERGEBNISSE", "zh": "运算广度 结果", "ja": "オペレーションスパン 結果", "pt": "AMPLITUDE OPERACIONAL RESULTADOS", "he": "מוטת פעולות תוצאות", "ar": "مدى العمليات النتائج", "nl": "OPERATIESPANNE RESULTATEN", "af": "OPERASIESPAN RESULTATE", "fi": "OPERAATIOJÄNNE TULOKSET", "ru": "ОПЕРАЦИОННЫЙ ОБЪЁМ РЕЗУЛЬТАТЫ"},
  "TEMPORAL BISECTION RESULTS":{"es": "BISECCIÓN TEMPORAL RESULTADOS", "fr": "BISSECTION TEMPORELLE RÉSULTATS", "de": "ZEITLICHE BISEKTION ERGEBNISSE", "zh": "时距二分 结果", "ja": "時間二分 結果", "pt": "BISSECÇÃO TEMPORAL RESULTADOS", "he": "חציית זמן תוצאות", "ar": "التنصيف الزمني النتائج", "nl": "TEMPORELE BISECTIE RESULTATEN", "af": "TEMPORALE BISEKSIE RESULTATE", "fi": "AJALLINEN BISEKTIO TULOKSET", "ru": "ВРЕМЕННАЯ БИСЕКЦИЯ РЕЗУЛЬТАТЫ"},
  "Pick the symbol that pays off more often — press F (left) or J (right), or click. The better symbol can switch without warning.":{"es": "Elige el símbolo que paga con más frecuencia — pulsa F (izq.) o J (der.), o haz clic. El mejor símbolo puede cambiar sin aviso.", "fr": "Choisissez le symbole qui paie le plus souvent — appuyez sur F (gauche) ou J (droite), ou cliquez. Le meilleur symbole peut changer sans prévenir.", "de": "Wählen Sie das häufiger belohnte Symbol — drücken Sie F (links) oder J (rechts), oder klicken. Das bessere Symbol kann ohne Vorwarnung wechseln.", "zh": "选择更常给奖励的符号——按 F（左）或 J（右），或点击。较优符号可能无预警改变。", "ja": "より高頻度で報酬が出る記号を選ぶ——F（左）かJ（右）を押すかクリック。良い記号は予告なく入れ替わる。", "pt": "Escolha o símbolo que recompensa com mais frequência — pressione F (esq.) ou J (dir.), ou clique. O melhor símbolo pode mudar sem aviso.", "he": "בחרו את הסמל שמשתלם לעיתים קרובות יותר — לחצו F (שמאל) או J (ימין), או הקליקו. הסמל הטוב עשוי להתחלף ללא התראה.", "ar": "اختر الرمز الذي يكافئ أكثر — اضغط F (يسار) أو J (يمين)، أو انقر. قد يتبدّل الرمز الأفضل دون إنذار.", "nl": "Kies het symbool dat vaker beloont — druk F (links) of J (rechts), of klik. Het betere symbool kan zonder waarschuwing wisselen.", "af": "Kies die simbool wat meer dikwels beloon — druk F (links) of J (regs), of klik. Die beter simbool kan sonder waarskuwing verander.", "fi": "Valitse useammin palkitseva symboli — paina F (vasen) tai J (oikea), tai napsauta. Parempi symboli voi vaihtua ilman varoitusta.", "ru": "Выберите символ, который чаще вознаграждает — нажмите F (слева) или J (справа) или щёлкните. Лучший символ может смениться без предупреждения."},
  "Which would you prefer?":{"es": "¿Cuál preferirías?", "fr": "Que préféreriez-vous ?", "de": "Was würden Sie bevorzugen?", "zh": "你更想要哪一个？", "ja": "どちらがよいですか？", "pt": "Qual você prefere?", "he": "מה תעדיפו?", "ar": "أيهما تفضّل؟", "nl": "Wat zou u verkiezen?", "af": "Wat sou jy verkies?", "fi": "Kumman valitsisit?", "ru": "Что бы вы предпочли?"},
  "There is no right answer — choose the option you genuinely prefer. Press F (left) / J (right) or click.":{"es": "No hay respuesta correcta — elige la opción que de verdad prefieras. Pulsa F (izq.) / J (der.) o haz clic.", "fr": "Il n'y a pas de bonne réponse — choisissez l'option que vous préférez vraiment. Appuyez sur F (gauche) / J (droite) ou cliquez.", "de": "Es gibt keine richtige Antwort — wählen Sie, was Sie wirklich bevorzugen. Drücken Sie F (links) / J (rechts) oder klicken.", "zh": "没有正确答案——选择你真正偏好的选项。按 F（左）/ J（右）或点击。", "ja": "正解はありません——本当に好む方を選ぶ。F（左）/ J（右）を押すかクリック。", "pt": "Não há resposta certa — escolha a opção que realmente prefere. Pressione F (esq.) / J (dir.) ou clique.", "he": "אין תשובה נכונה — בחרו את מה שאתם באמת מעדיפים. לחצו F (שמאל) / J (ימין) או הקליקו.", "ar": "لا توجد إجابة صحيحة — اختر ما تفضّله فعلًا. اضغط F (يسار) / J (يمين) أو انقر.", "nl": "Er is geen goed antwoord — kies de optie die u echt verkiest. Druk F (links) / J (rechts) of klik.", "af": "Daar is geen regte antwoord nie — kies wat jy werklik verkies. Druk F (links) / J (regs) of klik.", "fi": "Oikeaa vastausta ei ole — valitse aidosti haluamasi. Paina F (vasen) / J (oikea) tai napsauta.", "ru": "Правильного ответа нет — выберите то, что действительно предпочитаете. Нажмите F (слева) / J (справа) или щёлкните."},
  "Press the key under the highlighted box (D F J K) — or click it — as fast as you can.":{"es": "Pulsa la tecla bajo la casilla iluminada (D F J K) — o haz clic — lo más rápido posible.", "fr": "Appuyez sur la touche sous la case allumée (D F J K) — ou cliquez — le plus vite possible.", "de": "Drücken Sie die Taste unter dem hervorgehobenen Feld (D F J K) — oder klicken — so schnell wie möglich.", "zh": "尽快按下高亮方格下方的键（D F J K）——或点击它。", "ja": "強調表示されたマスの下のキー（D F J K）をできるだけ速く押す——またはクリック。", "pt": "Pressione a tecla sob a casa destacada (D F J K) — ou clique — o mais rápido possível.", "he": "לחצו על המקש שמתחת למשבצת המוארת (D F J K) — או הקליקו — מהר ככל האפשר.", "ar": "اضغط المفتاح أسفل المربّع المضيء (D F J K) — أو انقر — بأسرع ما يمكن.", "nl": "Druk de toets onder het gemarkeerde vak (D F J K) — of klik — zo snel mogelijk.", "af": "Druk die sleutel onder die verligte blokkie (D F J K) — of klik — so vinnig as moontlik.", "fi": "Paina korostetun ruudun alla olevaa näppäintä (D F J K) — tai napsauta — niin nopeasti kuin voit.", "ru": "Нажмите клавишу под подсвеченной ячейкой (D F J K) — или щёлкните — как можно быстрее."},
  "Is this equation correct?":{"es": "¿Es correcta esta ecuación?", "fr": "Cette équation est-elle correcte ?", "de": "Ist diese Gleichung korrekt?", "zh": "这个算式正确吗？", "ja": "この式は正しい？", "pt": "Esta equação está correta?", "he": "האם המשוואה נכונה?", "ar": "هل هذه المعادلة صحيحة؟", "nl": "Klopt deze vergelijking?", "af": "Is hierdie vergelyking korrek?", "fi": "Onko tämä yhtälö oikein?", "ru": "Верно ли это уравнение?"},
  "Remember this letter":{"es": "Recuerda esta letra", "fr": "Mémorisez cette lettre", "de": "Merken Sie sich diesen Buchstaben", "zh": "记住这个字母", "ja": "この文字を覚える", "pt": "Memorize esta letra", "he": "זכרו את האות הזו", "ar": "تذكّر هذا الحرف", "nl": "Onthoud deze letter", "af": "Onthou hierdie letter", "fi": "Muista tämä kirjain", "ru": "Запомните эту букву"},
  "Click the letters in the order they appeared":{"es": "Haz clic en las letras en el orden en que aparecieron", "fr": "Cliquez les lettres dans l'ordre d'apparition", "de": "Klicken Sie die Buchstaben in der Reihenfolge ihres Erscheinens", "zh": "按字母出现的顺序点击", "ja": "出現した順に文字をクリック", "pt": "Clique nas letras na ordem em que apareceram", "he": "הקליקו על האותיות לפי סדר הופעתן", "ar": "انقر الحروف بترتيب ظهورها", "nl": "Klik de letters in de volgorde van verschijnen", "af": "Klik die letters in die volgorde van verskyning", "fi": "Napsauta kirjaimet ilmestymisjärjestyksessä", "ru": "Нажимайте буквы в порядке их появления"},
  "accuracy per 5-trial bin · dashed lines = contingency reversals":{"es": "precisión por bloque de 5 ensayos · líneas discontinuas = reversiones", "fr": "précision par bloc de 5 essais · pointillés = inversions", "de": "Genauigkeit pro 5-Versuch-Block · gestrichelt = Umkehrungen", "zh": "每5试次的正确率 · 虚线=反转", "ja": "5試行ごとの正答率 · 破線=逆転", "pt": "precisão por bloco de 5 ensaios · tracejado = reversões", "he": "דיוק לכל 5 ניסיונות · קו מקווקו = היפוכים", "ar": "الدقة لكل 5 محاولات · الخطوط المتقطعة = الانعكاسات", "nl": "nauwkeurigheid per 5 trials · stippellijn = omkeringen", "af": "akkuraatheid per 5 proewe · stippellyn = omkerings", "fi": "tarkkuus per 5 koetta · katkoviiva = käännökset", "ru": "точность на 5 проб · пунктир = реверсы"},
  "subjective value vs delay · ● indifference points · dashed = hyperbolic fit":{"es": "valor subjetivo vs demora · ● puntos de indiferencia · discontinua = ajuste hiperbólico", "fr": "valeur subjective vs délai · ● points d'indifférence · pointillé = ajustement hyperbolique", "de": "subjektiver Wert vs Verzögerung · ● Indifferenzpunkte · gestrichelt = hyperbolischer Fit", "zh": "主观价值 vs 延迟 · ●无差异点 · 虚线=双曲拟合", "ja": "主観的価値 vs 遅延 · ●無差別点 · 破線=双曲線近似", "pt": "valor subjetivo vs atraso · ● pontos de indiferença · tracejado = ajuste hiperbólico", "he": "ערך סובייקטיבי מול עיכוב · ● נקודות אדישות · מקווקו = התאמה היפרבולית", "ar": "القيمة الذاتية مقابل التأخير · ● نقاط اللامبالاة · متقطع = ملاءمة زائدية", "nl": "subjectieve waarde vs uitstel · ● indifferentiepunten · stippel = hyperbolische fit", "af": "subjektiewe waarde vs vertraging · ● onverskilligheidspunte · stippel = hiperboliese passing", "fi": "subjektiivinen arvo vs viive · ● välinpitämättömyyspisteet · katkoviiva = hyperbolinen sovite", "ru": "субъективная ценность vs задержка · ● точки безразличия · пунктир = гиперболическая подгонка"},
  "mean RT per block · gold = sequence · red = random block":{"es": "TR medio por bloque · oro = secuencia · rojo = bloque aleatorio", "fr": "TR moyen par bloc · or = séquence · rouge = bloc aléatoire", "de": "mittlere RZ pro Block · Gold = Sequenz · Rot = Zufallsblock", "zh": "各区组平均反应时 · 金=序列 · 红=随机区组", "ja": "ブロック別平均RT · 金=系列 · 赤=ランダム", "pt": "TR médio por bloco · ouro = sequência · vermelho = bloco aleatório", "he": "זמן תגובה ממוצע לכל בלוק · זהב = רצף · אדום = בלוק אקראי", "ar": "متوسط زمن الرجع لكل كتلة · ذهبي = تسلسل · أحمر = كتلة عشوائية", "nl": "gemiddelde RT per blok · goud = reeks · rood = willekeurig blok", "af": "gemiddelde RT per blok · goud = reeks · rooi = lukrake blok", "fi": "keskimääräinen RA per lohko · kulta = sarja · punainen = satunnaislohko", "ru": "средний ВР по блокам · золото = последовательность · красный = случайный блок"},
  "pumps per balloon · gold = banked · red = burst":{"es": "bombeos por globo · oro = cobrado · rojo = estallido", "fr": "pompes par ballon · or = encaissé · rouge = éclaté", "de": "Pumps pro Ballon · Gold = kassiert · Rot = geplatzt", "zh": "每个气球的充气次数 · 金=已兑现 · 红=爆裂", "ja": "風船ごとのポンプ数 · 金=回収 · 赤=破裂", "pt": "bombadas por balão · ouro = guardado · vermelho = estouro", "he": "ניפוחים לכל בלון · זהב = נפדה · אדום = פיצוץ", "ar": "النفخات لكل بالون · ذهبي = محفوظ · أحمر = انفجار", "nl": "pompen per ballon · goud = verzilverd · rood = geknapt", "af": "pompe per ballon · goud = ingetrek · rooi = gebars", "fi": "pumppaukset per pallo · kulta = lunastettu · punainen = puhjennut", "ru": "накачивания на шарик · золото = забрано · красный = разрыв"},
  "proportion of letters recalled in correct position, by set size":{"es": "proporción de letras recordadas en posición correcta, por tamaño de conjunto", "fr": "proportion de lettres rappelées en position correcte, par taille de série", "de": "Anteil korrekt positionierter Buchstaben, nach Set-Größe", "zh": "按集合大小，正确位置回忆的字母比例", "ja": "セットサイズ別、正しい位置で再生された文字の割合", "pt": "proporção de letras recordadas na posição correta, por tamanho do conjunto", "he": "שיעור האותיות ששוחזרו במיקום נכון, לפי גודל הסדרה", "ar": "نسبة الحروف المسترجعة في الموضع الصحيح، حسب حجم المجموعة", "nl": "aandeel letters in juiste positie herinnerd, per setgrootte", "af": "aandeel letters in korrekte posisie onthou, per stelgrootte", "fi": "oikeassa kohdassa palautettujen kirjainten osuus, sarjakoon mukaan", "ru": "доля букв, воспроизведённых в верной позиции, по размеру набора"},
  "P(\"long\") vs duration · ● data · dashed = bisection point (50%)":{"es": "P(\"largo\") vs duración · ● datos · discontinua = punto de bisección (50%)", "fr": "P(« long ») vs durée · ● données · pointillé = point de bissection (50%)", "de": "P(\"lang\") vs Dauer · ● Daten · gestrichelt = Bisektionspunkt (50%)", "zh": "P(“长”) vs 时距 · ●数据 · 虚线=二分点(50%)", "ja": "P(「長」) vs 持続時間 · ●データ · 破線=二分点(50%)", "pt": "P(\"longo\") vs duração · ● dados · tracejado = ponto de bissecção (50%)", "he": "P(\"ארוך\") מול משך · ● נתונים · מקווקו = נקודת חצייה (50%)", "ar": "P(\"طويل\") مقابل المدة · ● بيانات · متقطع = نقطة التنصيف (50%)", "nl": "P(\"lang\") vs duur · ● data · stippel = bisectiepunt (50%)", "af": "P(\"lank\") vs duur · ● data · stippel = biseksiepunt (50%)", "fi": "P(\"pitkä\") vs kesto · ● data · katkoviiva = bisektiopiste (50%)", "ru": "P(\"длинный\") vs длительность · ● данные · пунктир = точка бисекции (50%)"},
  "⬆ PUMP (F)":{"es": "⬆ BOMBEAR (F)", "fr": "⬆ POMPER (F)", "de": "⬆ PUMPEN (F)", "zh": "⬆ 充气 (F)", "ja": "⬆ ポンプ (F)", "pt": "⬆ BOMBEAR (F)", "he": "⬆ נפח (F)", "ar": "⬆ انفخ (F)", "nl": "⬆ POMPEN (F)", "af": "⬆ POMP (F)", "fi": "⬆ PUMPPAA (F)", "ru": "⬆ НАКАЧАТЬ (F)"},
  "💰 BANK (J)":{"es": "💰 COBRAR (J)", "fr": "💰 ENCAISSER (J)", "de": "💰 KASSIEREN (J)", "zh": "💰 兑现 (J)", "ja": "💰 回収 (J)", "pt": "💰 GUARDAR (J)", "he": "💰 פדה (J)", "ar": "💰 اسحب (J)", "nl": "💰 VERZILVER (J)", "af": "💰 TREK IN (J)", "fi": "💰 LUNASTA (J)", "ru": "💰 ЗАБРАТЬ (J)"},
  "✓ TRUE (T)":{"es": "✓ VERDADERO (T)", "fr": "✓ VRAI (T)", "de": "✓ WAHR (T)", "zh": "✓ 对 (T)", "ja": "✓ 真 (T)", "pt": "✓ VERDADEIRO (T)", "he": "✓ נכון (T)", "ar": "✓ صح (T)", "nl": "✓ WAAR (T)", "af": "✓ WAAR (T)", "fi": "✓ TOSI (T)", "ru": "✓ ВЕРНО (T)"},
  "✗ FALSE (F)":{"es": "✗ FALSO (F)", "fr": "✗ FAUX (F)", "de": "✗ FALSCH (F)", "zh": "✗ 错 (F)", "ja": "✗ 偽 (F)", "pt": "✗ FALSO (F)", "he": "✗ לא נכון (F)", "ar": "✗ خطأ (F)", "nl": "✗ ONWAAR (F)", "af": "✗ ONWAAR (F)", "fi": "✗ EPÄTOSI (F)", "ru": "✗ НЕВЕРНО (F)"},
  "□ BLANK":{"es": "□ VACÍO", "fr": "□ VIDE", "de": "□ LEER", "zh": "□ 空白", "ja": "□ 空欄", "pt": "□ VAZIO", "he": "□ ריק", "ar": "□ فارغ", "nl": "□ LEEG", "af": "□ LEEG", "fi": "□ TYHJÄ", "ru": "□ ПУСТО"},
  "⌫ BACK":{"es": "⌫ BORRAR", "fr": "⌫ RETOUR", "de": "⌫ ZURÜCK", "zh": "⌫ 退格", "ja": "⌫ 戻る", "pt": "⌫ APAGAR", "he": "⌫ אחורה", "ar": "⌫ تراجع", "nl": "⌫ TERUG", "af": "⌫ TERUG", "fi": "⌫ TAKAISIN", "ru": "⌫ НАЗАД"},
  "✕ CLEAR":{"es": "✕ LIMPIAR", "fr": "✕ EFFACER", "de": "✕ LÖSCHEN", "zh": "✕ 清除", "ja": "✕ クリア", "pt": "✕ LIMPAR", "he": "✕ נקה", "ar": "✕ مسح", "nl": "✕ WISSEN", "af": "✕ VEE UIT", "fi": "✕ TYHJENNÄ", "ru": "✕ ОЧИСТИТЬ"},
  "✓ SUBMIT":{"es": "✓ ENVIAR", "fr": "✓ VALIDER", "de": "✓ ABSENDEN", "zh": "✓ 提交", "ja": "✓ 送信", "pt": "✓ ENVIAR", "he": "✓ שלח", "ar": "✓ إرسال", "nl": "✓ INDIENEN", "af": "✓ DIEN IN", "fi": "✓ LÄHETÄ", "ru": "✓ ОТПРАВИТЬ"},
  "◄ SHORT (F)":{"es": "◄ CORTO (F)", "fr": "◄ COURT (F)", "de": "◄ KURZ (F)", "zh": "◄ 短 (F)", "ja": "◄ 短 (F)", "pt": "◄ CURTO (F)", "he": "◄ קצר (F)", "ar": "◄ قصير (F)", "nl": "◄ KORT (F)", "af": "◄ KORT (F)", "fi": "◄ LYHYT (F)", "ru": "◄ КОРОТКИЙ (F)"},
  "LONG ► (J)":{"es": "LARGO ► (J)", "fr": "LONG ► (J)", "de": "LANG ► (J)", "zh": "长 ► (J)", "ja": "長 ► (J)", "pt": "LONGO ► (J)", "he": "ארוך ► (J)", "ar": "طويل ► (J)", "nl": "LANG ► (J)", "af": "LANK ► (J)", "fi": "PITKÄ ► (J)", "ru": "ДЛИННЫЙ ► (J)"},
  "Accuracy":{"es": "Precisión", "fr": "Précision", "de": "Genauigkeit", "zh": "正确率", "ja": "正答率", "pt": "Precisão", "he": "דיוק", "ar": "الدقة", "nl": "Nauwkeurigheid", "af": "Akkuraatheid", "fi": "Tarkkuus", "ru": "Точность"},
  "Reversals":{"es": "Reversiones", "fr": "Inversions", "de": "Umkehrungen", "zh": "反转数", "ja": "逆転数", "pt": "Reversões", "he": "היפוכים", "ar": "الانعكاسات", "nl": "Omkeringen", "af": "Omkerings", "fi": "Käännökset", "ru": "Реверсы"},
  "Persev. errors":{"es": "Errores persev.", "fr": "Erreurs persév.", "de": "Persev.-Fehler", "zh": "固着错误", "ja": "固執性誤り", "pt": "Erros persev.", "he": "שגיאות התמדה", "ar": "أخطاء المثابرة", "nl": "Persev. fouten", "af": "Persev. foute", "fi": "Perseveraatiovirh.", "ru": "Персев. ошибки"},
  "Win-stay":{"es": "Gana-sigue", "fr": "Gagne-reste", "de": "Gewinn-bleib", "zh": "赢则留", "ja": "勝継続", "pt": "Ganha-fica", "he": "זכה-המשך", "ar": "اربح-ابقَ", "nl": "Winst-blijf", "af": "Wen-bly", "fi": "Voita-pysy", "ru": "Выигрыш-остался"},
  "Lose-shift":{"es": "Pierde-cambia", "fr": "Perd-change", "de": "Verlust-wechsel", "zh": "输则换", "ja": "負転換", "pt": "Perde-muda", "he": "הפסד-החלף", "ar": "اخسر-بدّل", "nl": "Verlies-wissel", "af": "Verloor-ruil", "fi": "Häviä-vaihda", "ru": "Проигрыш-сменил"},
  "AuC (0–1)":{"es": "ABC (0–1)", "fr": "ASC (0–1)", "de": "AUC (0–1)", "zh": "曲线下面积 (0–1)", "ja": "曲線下面積 (0–1)", "pt": "ASC (0–1)", "he": "שטח מתחת לעקומה (0–1)", "ar": "المساحة تحت المنحنى (0–1)", "nl": "OOC (0–1)", "af": "AOK (0–1)", "fi": "Käyrän ala (0–1)", "ru": "Площадь (0–1)"},
  "Hyperbolic k":{"es": "k hiperbólica", "fr": "k hyperbolique", "de": "Hyperbolische k", "zh": "双曲 k", "ja": "双曲線 k", "pt": "k hiperbólico", "he": "k היפרבולי", "ar": "k الزائدي", "nl": "Hyperbolische k", "af": "Hiperboliese k", "fi": "Hyperbolinen k", "ru": "Гиперболич. k"},
  "ln(k)":{"es": "ln(k)", "fr": "ln(k)", "de": "ln(k)", "zh": "ln(k)", "ja": "ln(k)", "pt": "ln(k)", "he": "ln(k)", "ar": "ln(k)", "nl": "ln(k)", "af": "ln(k)", "fi": "ln(k)", "ru": "ln(k)"},
  "Immediate choices":{"es": "Elecciones inmed.", "fr": "Choix immédiats", "de": "Sofort-Wahlen", "zh": "立即选择", "ja": "即時選択", "pt": "Escolhas imediatas", "he": "בחירות מיידיות", "ar": "الاختيارات الفورية", "nl": "Onmiddell. keuzes", "af": "Onmiddell. keuses", "fi": "Välittömät valinnat", "ru": "Немедл. выборы"},
  "Seq-learning (rand−seq)":{"es": "Aprend. sec. (azar−sec)", "fr": "App. séq. (aléa−séq)", "de": "Seq.-Lernen (zuf−seq)", "zh": "序列学习 (随机−序列)", "ja": "系列学習 (乱−系列)", "pt": "Aprend. seq. (aleat−seq)", "he": "למידת רצף (אקר−רצף)", "ar": "تعلّم التسلسل (عشو−تسل)", "nl": "Reeksleren (rand−reeks)", "af": "Reeksleer (rand−reeks)", "fi": "Sarjaoppim. (sat−sarja)", "ru": "Научение (случ−посл)"},
  "RT improvement":{"es": "Mejora del TR", "fr": "Amélioration TR", "de": "RZ-Verbesserung", "zh": "反应时改善", "ja": "RT改善", "pt": "Melhoria do TR", "he": "שיפור זמן תגובה", "ar": "تحسّن زمن الرجع", "nl": "RT-verbetering", "af": "RT-verbetering", "fi": "RA:n parannus", "ru": "Улучшение ВР"},
  "Mean RT (ms)":{"es": "TR medio (ms)", "fr": "TR moyen (ms)", "de": "Mittlere RZ (ms)", "zh": "平均反应时 (ms)", "ja": "平均RT (ms)", "pt": "TR médio (ms)", "he": "זמן תגובה ממוצע (ms)", "ar": "متوسط زمن الرجع (ms)", "nl": "Gem. RT (ms)", "af": "Gem. RT (ms)", "fi": "Keskim. RA (ms)", "ru": "Средний ВР (мс)"},
  "Error rate":{"es": "Tasa de error", "fr": "Taux d'erreur", "de": "Fehlerrate", "zh": "错误率", "ja": "誤り率", "pt": "Taxa de erro", "he": "שיעור שגיאות", "ar": "معدل الخطأ", "nl": "Foutpercentage", "af": "Foutkoers", "fi": "Virheaste", "ru": "Доля ошибок"},
  "Adjusted avg pumps":{"es": "Bombeos ajust. prom.", "fr": "Pompes moy. ajust.", "de": "Bereinigte Ø-Pumps", "zh": "校正平均充气", "ja": "調整平均ポンプ", "pt": "Bombadas méd. ajust.", "he": "ממוצע ניפוחים מתוקנן", "ar": "متوسط النفخات المُعدّل", "nl": "Aangep. gem. pompen", "af": "Aangep. gem. pompe", "fi": "Korjatut ka-pumppaukset", "ru": "Скорр. сред. накач."},
  "Total banked":{"es": "Total cobrado", "fr": "Total encaissé", "de": "Gesamt kassiert", "zh": "总兑现", "ja": "総回収", "pt": "Total guardado", "he": "סך נפדה", "ar": "الإجمالي المحفوظ", "nl": "Totaal verzilverd", "af": "Totaal ingetrek", "fi": "Lunastettu yht.", "ru": "Всего забрано"},
  "Explosions":{"es": "Estallidos", "fr": "Éclatements", "de": "Platzer", "zh": "爆裂次数", "ja": "破裂数", "pt": "Estouros", "he": "פיצוצים", "ar": "الانفجارات", "nl": "Knappen", "af": "Barstings", "fi": "Puhkeamiset", "ru": "Разрывы"},
  "Avg pumps (all)":{"es": "Bombeos prom. (todos)", "fr": "Pompes moy. (tous)", "de": "Ø-Pumps (alle)", "zh": "平均充气 (全部)", "ja": "平均ポンプ (全)", "pt": "Bombadas méd. (todos)", "he": "ממוצע ניפוחים (הכל)", "ar": "متوسط النفخات (الكل)", "nl": "Gem. pompen (alle)", "af": "Gem. pompe (almal)", "fi": "Ka-pumppaukset (kaikki)", "ru": "Сред. накач. (все)"},
  "Partial score":{"es": "Puntuación parcial", "fr": "Score partiel", "de": "Teilwert", "zh": "部分分", "ja": "部分得点", "pt": "Pontuação parcial", "he": "ניקוד חלקי", "ar": "الدرجة الجزئية", "nl": "Gedeelt. score", "af": "Gedeelt. telling", "fi": "Osittaispisteet", "ru": "Частичный балл"},
  "Absolute score":{"es": "Puntuación absoluta", "fr": "Score absolu", "de": "Absolutwert", "zh": "绝对分", "ja": "絶対得点", "pt": "Pontuação absoluta", "he": "ניקוד מוחלט", "ar": "الدرجة المطلقة", "nl": "Absolute score", "af": "Absolute telling", "fi": "Absoluuttipisteet", "ru": "Абсолютный балл"},
  "Span (perfect)":{"es": "Amplitud (perfecta)", "fr": "Empan (parfait)", "de": "Spanne (perfekt)", "zh": "广度 (完美)", "ja": "スパン (完全)", "pt": "Amplitude (perfeita)", "he": "מוטה (מושלם)", "ar": "المدى (مثالي)", "nl": "Span (perfect)", "af": "Span (perfek)", "fi": "Jänne (täydellinen)", "ru": "Объём (идеал.)"},
  "Math accuracy":{"es": "Precisión aritm.", "fr": "Précision calcul", "de": "Rechengenauigkeit", "zh": "运算正确率", "ja": "計算正確性", "pt": "Precisão aritm.", "he": "דיוק חישוב", "ar": "دقة الحساب", "nl": "Reken-nauwkeurigh.", "af": "Reken-akkuraatheid", "fi": "Laskutarkkuus", "ru": "Точность счёта"},
  "Bisection point":{"es": "Punto de bisección", "fr": "Point de bissection", "de": "Bisektionspunkt", "zh": "二分点", "ja": "二分点", "pt": "Ponto de bissecção", "he": "נקודת חצייה", "ar": "نقطة التنصيف", "nl": "Bisectiepunt", "af": "Biseksiepunt", "fi": "Bisektiopiste", "ru": "Точка бисекции"},
  "Weber ratio":{"es": "Razón de Weber", "fr": "Ratio de Weber", "de": "Weber-Verhältnis", "zh": "韦伯比", "ja": "ウェーバー比", "pt": "Razão de Weber", "he": "יחס וובר", "ar": "نسبة فيبر", "nl": "Weber-ratio", "af": "Weber-verhouding", "fi": "Weberin suhde", "ru": "Коэф. Вебера"},
  "Difference limen":{"es": "Umbral diferencial", "fr": "Seuil différentiel", "de": "Unterschiedsschwelle", "zh": "差异阈", "ja": "差異閾", "pt": "Limiar diferencial", "he": "סף הפרש", "ar": "عتبة الفرق", "nl": "Verschildrempel", "af": "Verskildrempel", "fi": "Erotuskynnys", "ru": "Порог различия"},
  "GM / AM (ref)":{"es": "MG / MA (ref)", "fr": "MG / MA (réf)", "de": "GM / AM (Ref)", "zh": "几何/算术 (参考)", "ja": "幾何/算術 (参考)", "pt": "MG / MA (ref)", "he": "ממוצע גאומ' / חשבוני (סימוכין)", "ar": "الهندسي / الحسابي (مرجع)", "nl": "MK / RK (ref)", "af": "MK / RK (verw)", "fi": "GK / AK (viite)", "ru": "СГ / СА (эталон)"},
  "ACCURACY":{"es": "PRECISIÓN", "fr": "PRÉCISION", "de": "GENAUIGKEIT", "zh": "正确率", "ja": "正答率", "pt": "PRECISÃO", "he": "דיוק", "ar": "الدقة", "nl": "NAUWKEURIGH.", "af": "AKKURAATHEID", "fi": "TARKKUUS", "ru": "ТОЧНОСТЬ"},
  "REVERSALS":{"es": "REVERSIONES", "fr": "INVERSIONS", "de": "UMKEHRUNGEN", "zh": "反转", "ja": "逆転", "pt": "REVERSÕES", "he": "היפוכים", "ar": "الانعكاسات", "nl": "OMKERINGEN", "af": "OMKERINGS", "fi": "KÄÄNNÖKSET", "ru": "РЕВЕРСЫ"},
  "AuC":{"es": "ABC", "fr": "ASC", "de": "AUC", "zh": "曲线下面积", "ja": "曲線下面積", "pt": "ASC", "he": "שטח", "ar": "المساحة", "nl": "OOC", "af": "AOK", "fi": "KÄYRÄ-ALA", "ru": "ПЛОЩАДЬ"},
  "IMMEDIATE":{"es": "INMEDIATO", "fr": "IMMÉDIAT", "de": "SOFORT", "zh": "立即", "ja": "即時", "pt": "IMEDIATO", "he": "מיידי", "ar": "فوري", "nl": "ONMIDDELLIJK", "af": "ONMIDDELLIK", "fi": "VÄLITÖN", "ru": "НЕМЕДЛ."},
  "MEAN RT":{"es": "TR MEDIO", "fr": "TR MOYEN", "de": "MITTL. RZ", "zh": "平均RT", "ja": "平均RT", "pt": "TR MÉDIO", "he": "זמן תגובה ממוצע", "ar": "متوسط زمن الرجع", "nl": "GEM. RT", "af": "GEM. RT", "fi": "KESKIM. RA", "ru": "СРЕДНИЙ ВР"},
  "ERRORS":{"es": "ERRORES", "fr": "ERREURS", "de": "FEHLER", "zh": "错误", "ja": "誤り", "pt": "ERROS", "he": "שגיאות", "ar": "أخطاء", "nl": "FOUTEN", "af": "FOUTE", "fi": "VIRHEET", "ru": "ОШИБКИ"},
  "ADJ PUMPS":{"es": "BOMB. AJUST.", "fr": "POMPES AJUST.", "de": "BEREIN. PUMPS", "zh": "校正充气", "ja": "調整ポンプ", "pt": "BOMB. AJUST.", "he": "ניפוחים מתוקננים", "ar": "نفخات معدّلة", "nl": "AANGEP. POMPEN", "af": "AANGEP. POMPE", "fi": "KORJ. PUMPUT", "ru": "СКОРР. НАКАЧ."},
  "BANKED":{"es": "COBRADO", "fr": "ENCAISSÉ", "de": "KASSIERT", "zh": "已兑现", "ja": "回収", "pt": "GUARDADO", "he": "נפדה", "ar": "محفوظ", "nl": "VERZILVERD", "af": "INGETREK", "fi": "LUNASTETTU", "ru": "ЗАБРАНО"},
  "PARTIAL":{"es": "PARCIAL", "fr": "PARTIEL", "de": "TEIL", "zh": "部分", "ja": "部分", "pt": "PARCIAL", "he": "חלקי", "ar": "جزئي", "nl": "GEDEELT.", "af": "GEDEELT.", "fi": "OSITTAIS", "ru": "ЧАСТИЧНЫЙ"},
  "MATH":{"es": "MAT.", "fr": "CALCUL", "de": "RECHNEN", "zh": "运算", "ja": "計算", "pt": "MAT.", "he": "חשבון", "ar": "حساب", "nl": "REKENEN", "af": "REKENE", "fi": "LASKU", "ru": "СЧЁТ"},
  "BISECTION PT":{"es": "PUNTO BISEC.", "fr": "PT BISSECTION", "de": "BISEKT.-PKT", "zh": "二分点", "ja": "二分点", "pt": "PT BISSECÇÃO", "he": "נק' חצייה", "ar": "نقطة التنصيف", "nl": "BISECTIEPT", "af": "BISEKSIEPT", "fi": "BISEKTIOPISTE", "ru": "ТОЧКА БИСЕК."},
  "Trial":{"es": "Ensayo", "fr": "Essai", "de": "Versuch", "zh": "试次", "ja": "試行", "pt": "Ensaio", "he": "ניסיון", "ar": "محاولة", "nl": "Trial", "af": "Proef", "fi": "Koe", "ru": "Проба"},
  "Delay":{"es": "Demora", "fr": "Délai", "de": "Verzögerung", "zh": "延迟", "ja": "遅延", "pt": "Atraso", "he": "עיכוב", "ar": "تأخير", "nl": "Uitstel", "af": "Vertraging", "fi": "Viive", "ru": "Задержка"},
  "Block":{"es": "Bloque", "fr": "Bloc", "de": "Block", "zh": "区组", "ja": "ブロック", "pt": "Bloco", "he": "בלוק", "ar": "كتلة", "nl": "Blok", "af": "Blok", "fi": "Lohko", "ru": "Блок"},
  "Balloon":{"es": "Globo", "fr": "Ballon", "de": "Ballon", "zh": "气球", "ja": "風船", "pt": "Balão", "he": "בלון", "ar": "بالون", "nl": "Ballon", "af": "Ballon", "fi": "Pallo", "ru": "Шарик"},
  "Set":{"es": "Conjunto", "fr": "Série", "de": "Set", "zh": "集合", "ja": "セット", "pt": "Conjunto", "he": "סדרה", "ar": "مجموعة", "nl": "Set", "af": "Stel", "fi": "Sarja", "ru": "Набор"},
  "Math":{"es": "Mat.", "fr": "Calcul", "de": "Rechnen", "zh": "运算", "ja": "計算", "pt": "Mat.", "he": "חשבון", "ar": "حساب", "nl": "Rekenen", "af": "Rekene", "fi": "Lasku", "ru": "Счёт"},
  "pts":{"es": "pts", "fr": "pts", "de": "Pkt", "zh": "分", "ja": "点", "pt": "pts", "he": "נק'", "ar": "نقطة", "nl": "pnt", "af": "pnt", "fi": "pist.", "ru": "очк."},
  "banked":{"es": "cobrado", "fr": "encaissé", "de": "kassiert", "zh": "已兑现", "ja": "回収済", "pt": "guardado", "he": "נפדה", "ar": "محفوظ", "nl": "verzilverd", "af": "ingetrek", "fi": "lunastettu", "ru": "забрано"},
  "in this balloon":{"es": "en este globo", "fr": "dans ce ballon", "de": "in diesem Ballon", "zh": "本气球", "ja": "この風船で", "pt": "neste balão", "he": "בבלון זה", "ar": "في هذا البالون", "nl": "in deze ballon", "af": "in hierdie ballon", "fi": "tässä pallossa", "ru": "в этом шарике"},
  "pump":{"es": "bombeo", "fr": "pompe", "de": "Pump", "zh": "次充气", "ja": "ポンプ", "pt": "bombada", "he": "ניפוח", "ar": "نفخة", "nl": "pomp", "af": "pomp", "fi": "pumppaus", "ru": "накачивание"},
  "pumps":{"es": "bombeos", "fr": "pompes", "de": "Pumps", "zh": "次充气", "ja": "ポンプ", "pt": "bombadas", "he": "ניפוחים", "ar": "نفخات", "nl": "pompen", "af": "pompe", "fi": "pumppausta", "ru": "накачиваний"},
  "✓ REWARD":{"es": "✓ RECOMPENSA", "fr": "✓ RÉCOMPENSE", "de": "✓ BELOHNUNG", "zh": "✓ 奖励", "ja": "✓ 報酬", "pt": "✓ RECOMPENSA", "he": "✓ תגמול", "ar": "✓ مكافأة", "nl": "✓ BELONING", "af": "✓ BELONING", "fi": "✓ PALKKIO", "ru": "✓ НАГРАДА"},
  "✗ NO REWARD":{"es": "✗ SIN RECOMPENSA", "fr": "✗ PAS DE RÉCOMPENSE", "de": "✗ KEINE BELOHNUNG", "zh": "✗ 无奖励", "ja": "✗ 報酬なし", "pt": "✗ SEM RECOMPENSA", "he": "✗ ללא תגמול", "ar": "✗ لا مكافأة", "nl": "✗ GEEN BELONING", "af": "✗ GEEN BELONING", "fi": "✗ EI PALKKIOTA", "ru": "✗ НЕТ НАГРАДЫ"},
  "BURST! — lost this balloon ($0.00)":{"es": "¡ESTALLÓ! — perdiste este globo ($0.00)", "fr": "ÉCLATÉ ! — ballon perdu (0,00 $)", "de": "GEPLATZT! — Ballon verloren ($0.00)", "zh": "爆裂！——失去该气球（$0.00）", "ja": "破裂！——この風船を失った（$0.00）", "pt": "ESTOUROU! — perdeu este balão ($0.00)", "he": "התפוצץ! — איבדת את הבלון ($0.00)", "ar": "انفجر! — خسرت هذا البالون ($0.00)", "nl": "GEKNAPT! — ballon kwijt ($0.00)", "af": "GEBARS! — ballon verloor ($0.00)", "fi": "PUHKESI! — menetit pallon ($0.00)", "ru": "ЛОПНУЛ! — шарик потерян ($0.00)"},
  "Banked":{"es": "Cobrado", "fr": "Encaissé", "de": "Kassiert", "zh": "已兑现", "ja": "回収", "pt": "Guardado", "he": "נפדה", "ar": "محفوظ", "nl": "Verzilverd", "af": "Ingetrek", "fi": "Lunastettu", "ru": "Забрано"},
  "Learn the standards":{"es": "Aprende los patrones", "fr": "Apprenez les étalons", "de": "Standards lernen", "zh": "学习标准", "ja": "標準を学ぶ", "pt": "Aprenda os padrões", "he": "למדו את התקנים", "ar": "تعلّم المعايير", "nl": "Leer de standaarden", "af": "Leer die standaarde", "fi": "Opi vakiot", "ru": "Изучите эталоны"},
  "Judge each flash":{"es": "Juzga cada destello", "fr": "Jugez chaque flash", "de": "Jeden Blitz beurteilen", "zh": "判断每次闪光", "ja": "各フラッシュを判断", "pt": "Julgue cada flash", "he": "שפטו כל הבזק", "ar": "احكم كل وميض", "nl": "Beoordeel elke flits", "af": "Beoordeel elke flits", "fi": "Arvioi jokainen välähdys", "ru": "Оцените каждую вспышку"},
  "Standard:":{"es": "Patrón:", "fr": "Étalon :", "de": "Standard:", "zh": "标准：", "ja": "標準：", "pt": "Padrão:", "he": "תקן:", "ar": "معيار:", "nl": "Standaard:", "af": "Standaard:", "fi": "Vakio:", "ru": "Эталон:"},
  "SHORT":{"es": "CORTO", "fr": "COURT", "de": "KURZ", "zh": "短", "ja": "短", "pt": "CURTO", "he": "קצר", "ar": "قصير", "nl": "KORT", "af": "KORT", "fi": "LYHYT", "ru": "КОРОТКИЙ"},
  "LONG":{"es": "LARGO", "fr": "LONG", "de": "LANG", "zh": "长", "ja": "長", "pt": "LONGO", "he": "ארוך", "ar": "طويل", "nl": "LANG", "af": "LANK", "fi": "PITKÄ", "ru": "ДЛИННЫЙ"},
  "now":{"es": "ahora", "fr": "maintenant", "de": "jetzt", "zh": "现在", "ja": "今", "pt": "agora", "he": "עכשיו", "ar": "الآن", "nl": "nu", "af": "nou", "fi": "nyt", "ru": "сейчас"},
  "days":{"es": "días", "fr": "jours", "de": "Tage", "zh": "天", "ja": "日", "pt": "dias", "he": "ימים", "ar": "أيام", "nl": "dagen", "af": "dae", "fi": "päivää", "ru": "дн."},
  "weeks":{"es": "semanas", "fr": "semaines", "de": "Wochen", "zh": "周", "ja": "週", "pt": "semanas", "he": "שבועות", "ar": "أسابيع", "nl": "weken", "af": "weke", "fi": "viikkoa", "ru": "нед."},
  "months":{"es": "meses", "fr": "mois", "de": "Monate", "zh": "个月", "ja": "か月", "pt": "meses", "he": "חודשים", "ar": "أشهر", "nl": "maanden", "af": "maande", "fi": "kuukautta", "ru": "мес."},
  "years":{"es": "años", "fr": "ans", "de": "Jahre", "zh": "年", "ja": "年", "pt": "anos", "he": "שנים", "ar": "سنوات", "nl": "jaar", "af": "jaar", "fi": "vuotta", "ru": "лет"},
  "1 day":{"es": "1 día", "fr": "1 jour", "de": "1 Tag", "zh": "1天", "ja": "1日", "pt": "1 dia", "he": "יום 1", "ar": "يوم 1", "nl": "1 dag", "af": "1 dag", "fi": "1 päivä", "ru": "1 день"},
  "1 week":{"es": "1 semana", "fr": "1 semaine", "de": "1 Woche", "zh": "1周", "ja": "1週", "pt": "1 semana", "he": "שבוע 1", "ar": "أسبوع 1", "nl": "1 week", "af": "1 week", "fi": "1 viikko", "ru": "1 неделя"},
  "2 weeks":{"es": "2 semanas", "fr": "2 semaines", "de": "2 Wochen", "zh": "2周", "ja": "2週", "pt": "2 semanas", "he": "שבועיים", "ar": "أسبوعان", "nl": "2 weken", "af": "2 weke", "fi": "2 viikkoa", "ru": "2 недели"},
  "1 month":{"es": "1 mes", "fr": "1 mois", "de": "1 Monat", "zh": "1个月", "ja": "1か月", "pt": "1 mês", "he": "חודש 1", "ar": "شهر 1", "nl": "1 maand", "af": "1 maand", "fi": "1 kuukausi", "ru": "1 месяц"},
  "3 months":{"es": "3 meses", "fr": "3 mois", "de": "3 Monate", "zh": "3个月", "ja": "3か月", "pt": "3 meses", "he": "3 חודשים", "ar": "3 أشهر", "nl": "3 maanden", "af": "3 maande", "fi": "3 kuukautta", "ru": "3 месяца"},
  "6 months":{"es": "6 meses", "fr": "6 mois", "de": "6 Monate", "zh": "6个月", "ja": "6か月", "pt": "6 meses", "he": "6 חודשים", "ar": "6 أشهر", "nl": "6 maanden", "af": "6 maande", "fi": "6 kuukautta", "ru": "6 месяцев"},
  "1 year":{"es": "1 año", "fr": "1 an", "de": "1 Jahr", "zh": "1年", "ja": "1年", "pt": "1 ano", "he": "שנה 1", "ar": "سنة 1", "nl": "1 jaar", "af": "1 jaar", "fi": "1 vuosi", "ru": "1 год"},
  "2 years":{"es": "2 años", "fr": "2 ans", "de": "2 Jahre", "zh": "2年", "ja": "2年", "pt": "2 anos", "he": "שנתיים", "ar": "سنتان", "nl": "2 jaar", "af": "2 jaar", "fi": "2 vuotta", "ru": "2 года"},
  "3 years":{"es": "3 años", "fr": "3 ans", "de": "3 Jahre", "zh": "3年", "ja": "3年", "pt": "3 anos", "he": "3 שנים", "ar": "3 سنوات", "nl": "3 jaar", "af": "3 jaar", "fi": "3 vuotta", "ru": "3 года"},
  "5 years":{"es": "5 años", "fr": "5 ans", "de": "5 Jahre", "zh": "5年", "ja": "5年", "pt": "5 anos", "he": "5 שנים", "ar": "5 سنوات", "nl": "5 jaar", "af": "5 jaar", "fi": "5 vuotta", "ru": "5 лет"},
  "10 years":{"es": "10 años", "fr": "10 ans", "de": "10 Jahre", "zh": "10年", "ja": "10年", "pt": "10 anos", "he": "10 שנים", "ar": "10 سنوات", "nl": "10 jaar", "af": "10 jaar", "fi": "10 vuotta", "ru": "10 лет"}
});

// QUESTIONNAIRES_RU and RESULT_STRINGS_RU are populated later in the file.
// We attach them to I18N after they're declared (see "// I18N: attach late
// constants" near the questionnaire definitions).

// Sweep DOM for static-text elements and replace via UI_STRINGS lookup.
// Snapshots original English into data-en-text the first time, so the
// lookup keys stay stable across language switches.
function localizeUIStrings(lang){
  // Selector list: each entry has a CSS selector and a "find textContent" mode.
  var selectors = '.practice-banner, .intro-btn, .sidebar-btn, .pc-title, .trials-input-row, #introPracticeNote, .vrt-results-title, .tl8';
  // Resolve the bucket once. Each I18N[lang].ui is shaped {englishKey: translation}.
  // For results titles, fall back to RUNTIME_I18N (which has all 98 'XXX RESULTS' entries).
  var bucket = (I18N[lang] && I18N[lang].ui) || I18N.en.ui;
  document.querySelectorAll(selectors).forEach(function(el){
    // Snapshot original English textContent on first call
    if(!el.dataset.enText){
      // For trials-input-row, only the text before the input
      if(el.classList && el.classList.contains('trials-input-row')){
        var firstChild=el.firstChild;
        if(firstChild && firstChild.nodeType===3){ el.dataset.enText=firstChild.textContent.trim(); }
        return;  // skip — handled separately below
      }
      // For other elements, snapshot full textContent
      el.dataset.enText=el.textContent.trim();
    }
  });
  // Apply translations
  document.querySelectorAll(selectors).forEach(function(el){
    var key=el.dataset.enText;
    if(!key) return;
    var translated;
    if(lang === 'en'){
      translated = key;
    } else {
      // Check the I18N ui bucket first; if not there, try RUNTIME_I18N
      // (which holds the 98 result-title translations + runtime labels).
      translated = bucket[key];
      if(!translated){
        var rtEntry = (typeof RUNTIME_I18N !== 'undefined') ? RUNTIME_I18N[key] : null;
        translated = (rtEntry && rtEntry[lang]) || key;
      }
    }
    // trials-input-row needs special handling — only replace first text node
    if(el.classList && el.classList.contains('trials-input-row')){
      if(el.firstChild && el.firstChild.nodeType===3) el.firstChild.textContent = translated;
      return;
    }
    el.textContent = translated;
  });
}


function setLang(lang){
  // en-GB is English content with UK spellings applied as a post-pass; for all
  // content lookups it behaves as 'en'.
  var enVariant = (lang==='en-GB') ? 'en-GB' : (lang==='en' ? 'en-US' : null);
  window._enVariant = enVariant;
  window._srIsUK = (enVariant==='en-GB');
  var lookupLang = (lang==='en-GB') ? 'en' : lang;
  currentLang=lookupLang;
  try{ window._cognosLang=lang; }catch(e){}   // expose for the test harness
  var rtl=(lookupLang==='he'||lookupLang==='ar');
  ['en','es','fr','de','zh','ja','pt','he','ar','nl','af','fi','ru'].forEach(function(l){
    var b=document.getElementById('btn-lang-'+l);
    if(!b)return;
    var on=l===lookupLang;
    b.style.borderColor=on?'var(--gold)':'#2a4060';
    b.style.color=on?'var(--gold)':'var(--dim)';
    b.style.opacity=on?'1':'0.6';
  });
  // Sync dropdown value when language is set programmatically
  var sel=document.getElementById('lang-select');
  if(sel && sel.value!==lang) sel.value=lang;
  // RTL support
  var main=document.getElementById('home');
  if(main){main.style.direction=rtl?'rtl':'ltr';}
  var sub=document.getElementById('home-sub-text');
  if(sub)sub.textContent=(I18N[lookupLang] && I18N[lookupLang].subtitle) || I18N.en.subtitle;
  document.querySelectorAll('.grid-section-label').forEach(function(el){
    var k=el.dataset[lookupLang]||el.dataset.en;
    var s=el.dataset[lookupLang+'Sub']||el.dataset.enSub;
    if(k)el.innerHTML=k+(s?'<span>'+s+'</span>':'');
  });
  var labels=(I18N[lookupLang] && I18N[lookupLang].tiles) || I18N.en.tiles;
  document.querySelectorAll('.task-tile[data-task]').forEach(function(tile){
    var task=tile.dataset.task;
    var icon=tile.querySelector('.task-icon');
    var iconHTML=icon?icon.outerHTML:'';
    var lbl=labels[task] || I18N.en.tiles[task];
    if(lbl)tile.innerHTML=iconHTML+lbl;
  });
  // Translate static button labels, banners, and the trials input row
  try{ localizeUIStrings(lookupLang); }catch(e){ console.warn('localizeUIStrings failed:', e); }
  // Apply UK spellings as a final pass over visible English text.
  try{ applyEnglishVariantSpelling(enVariant); }catch(e){ console.warn('en variant spelling failed:', e); }
}
// US↔UK spelling: source text is US English; for en-GB, convert visible UI text.
// Word-boundary, case-preserving. Kept conservative (common -or/-ize/-er forms)
// to avoid mangling proper nouns or code.
var EN_US_TO_UK = {
  'color':'colour','colors':'colours','colored':'coloured','coloring':'colouring',
  'behavior':'behaviour','behaviors':'behaviours','behavioral':'behavioural',
  'analyze':'analyse','analyzed':'analysed','analyzing':'analysing','analyzes':'analyses',
  'recognize':'recognise','recognized':'recognised','recognizes':'recognises','recognizing':'recognising',
  'organize':'organise','organized':'organised','organizing':'organising',
  'randomize':'randomise','randomized':'randomised','randomizing':'randomising',
  'normalize':'normalise','normalized':'normalised',
  'center':'centre','centered':'centred','centers':'centres',
  'meter':'metre','meters':'metres','liter':'litre','liters':'litres',
  'practice':'practise',  // verb sense dominates in task UI ("practise the task")
  'license':'licence',
  'gray':'grey','grayed':'greyed',
  'fiber':'fibre','fibers':'fibres',
  'defense':'defence','offense':'offence',
  'catalog':'catalogue','dialog':'dialogue',
  'maximize':'maximise','minimize':'minimise','summarize':'summarise','summarized':'summarised',
  'visualize':'visualise','visualized':'visualised','memorize':'memorise','memorized':'memorised',
  'favorite':'favourite','favor':'favour','labeled':'labelled','labeling':'labelling',
  'canceled':'cancelled','canceling':'cancelling','traveled':'travelled',
  'judgment':'judgement','aging':'ageing'
};
function _applyCaseTemplate(src, repl){
  if(src===src.toUpperCase()) return repl.toUpperCase();
  if(src[0]===src[0].toUpperCase()) return repl.charAt(0).toUpperCase()+repl.slice(1);
  return repl;
}
function applyEnglishVariantSpelling(variant){
  if(variant!=='en-GB' && variant!=='en-US') return;
  // For UK use US→UK; for US use the reverse map (restores source if toggled back).
  var map = (variant==='en-GB') ? EN_US_TO_UK : _enUKtoUS();
  var root=document.querySelector('.main') || document.body;
  if(!root) return;
  var keys=Object.keys(map);
  if(!keys.length) return;
  var re=new RegExp('\\b('+keys.join('|')+')\\b','gi');
  var walker=document.createTreeWalker(root, NodeFilter.SHOW_TEXT, {
    acceptNode:function(n){
      if(!n.nodeValue || !n.nodeValue.trim()) return NodeFilter.FILTER_REJECT;
      var p=n.parentNode;
      if(p && (p.nodeName==='SCRIPT'||p.nodeName==='STYLE'||p.nodeName==='OPTION'||
               p.nodeName==='TEXTAREA'||p.nodeName==='INPUT'||
               p.id==='lang-select')) return NodeFilter.FILTER_REJECT;
      return NodeFilter.FILTER_ACCEPT;
    }
  });
  var nodes=[], nd;
  while((nd=walker.nextNode())) nodes.push(nd);
  nodes.forEach(function(n){
    var t=n.nodeValue;
    re.lastIndex=0;
    if(!re.test(t)) return;
    re.lastIndex=0;
    n.nodeValue = t.replace(re, function(m){
      var rep=map[m.toLowerCase()];
      return rep ? _applyCaseTemplate(m, rep) : m;
    });
  });
}
// Inverse of EN_US_TO_UK, cached, for restoring US spellings on toggle-back.
var _enUKtoUSCache=null;
function _enUKtoUS(){
  if(_enUKtoUSCache) return _enUKtoUSCache;
  var inv={};
  Object.keys(EN_US_TO_UK).forEach(function(us){ inv[EN_US_TO_UK[us]]=us; });
  _enUKtoUSCache=inv;
  return inv;
}

document.addEventListener('DOMContentLoaded',function(){
  document.querySelectorAll('.task-tile[data-task]').forEach(function(tile){
    var task=tile.dataset.task;
    var icon=tile.querySelector('.task-icon');
    var text=tile.textContent.replace(icon?icon.textContent:'','').trim();
    TILE_LABELS_EN[task]=text;
  });
  // Honor ?lang=xx from URL (e.g. linked from landing page)
  try{
    var params=new URLSearchParams(window.location.search);
    var urlLang=params.get('lang');
    var SUPPORTED=['en','es','fr','de','zh','ja','pt','he','ar','nl','af','fi','ru'];
    if(urlLang&&SUPPORTED.indexOf(urlLang)!==-1&&urlLang!=='en'){
      setLang(urlLang);
    } else {
      // Default is US English — normalise any hard-coded UK spellings in the
      // static markup to US. (setLang only runs on an explicit change, so the
      // default load needs this pass too.)
      window._enVariant='en-US';
      try{ applyEnglishVariantSpelling('en-US'); }catch(e){}
    }
  }catch(e){/* no-op */}
  // Sync trigger settings UI to stored state
  try{
    var savedUrl = localStorage.getItem('cognosWsUrl');
    if(savedUrl){
      var inp = document.getElementById('trigUrlInput');
      if(inp) inp.value = savedUrl;
    }
    var savedEnabled = localStorage.getItem('cognosTrigEnabled');
    if(savedEnabled === '0'){
      var chk = document.getElementById('trigEnabledChk');
      if(chk) chk.checked = false;
    }
  }catch(_){}
});

const _origShowIntro2=showIntro;
showIntro=function(task){
  // Look up localized paradigm via I18N (with English fallback) instead of
  // a 13-way ternary chain over the legacy PARADIGMS_xx constants.
  var dict = (currentLang !== 'en' && I18N[currentLang] && I18N[currentLang].paradigms) || null;
  if(dict && dict[task]){
    var orig=PARADIGMS[task];
    PARADIGMS[task]=Object.assign({},orig,dict[task]);
    _origShowIntro2(task);
    PARADIGMS[task]=orig;
  } else {
    _origShowIntro2(task);
  }
};

// ══════════════════════════════════════════════════════════
// NEW ERP TASKS: N200, N170, LRP, N2pc, N300, ELAN, BP,
//               MMN-Speech, SSVEP
// ══════════════════════════════════════════════════════════

Object.assign(PARADIGMS, {
  N200: {
    name: 'N200 / NoGo N2',
    body: 'The N200 (NoGo N2) indexes inhibitory control in a two-choice Go/No-Go paradigm. Circles appear in two colors. Respond rapidly to the Go color (gold); withhold to the No-Go color (blue). The N200 is a frontocentral negative deflection ~200 ms, maximal on No-Go trials — reflecting active suppression of a prepotent response.',
    rules: [
      { key: 'F / SPACE', desc: 'GO — respond to the GOLD circle' },
      { key: 'Withhold',  desc: 'NO-GO — do not press to the BLUE circle' },
      { key: 'N200',      desc: 'Frontocentral negative peak ~200 ms, larger on No-Go trials' },
      { key: 'RATE',      desc: '75% Go · 25% No-Go' }
    ]
  },
  N170: {
    name: 'N170 FACE / OBJECT',
    body: 'The N170 is a negative occipito-temporal component ~170 ms, selectively larger for faces. Schematic procedurally-generated faces and geometric objects appear; respond face or object. The N170 face-inversion effect (larger/later N170 for inverted faces) is a robust marker of configural face processing.',
    rules: [
      { key: 'F', desc: 'FACE — the stimulus is a face (any orientation)' },
      { key: 'J', desc: 'OBJECT — the stimulus is a geometric shape' },
      { key: 'N170', desc: 'Occipito-temporal negative peak ~170 ms, larger for faces' },
      { key: 'INVERSION', desc: 'Inverted faces produce larger, later N170' }
    ]
  },  N2PC: {
    name: 'N2pc VISUAL SEARCH',
    body: 'The N2pc reflects spatial selective attention. A bilateral search array appears; one gold target among gray distractors. Identify which hemifield contains the target. The N2pc is a contralateral posterior negativity ~220–300 ms indexing covert attentional capture.',
    rules: [
      { key: 'F', desc: 'Target is on the LEFT side' },
      { key: 'J', desc: 'Target is on the RIGHT side' },
      { key: 'N2pc', desc: 'Contralateral posterior (PO7/PO8) negativity ~220–300 ms' },
      { key: 'ARRAY', desc: 'Brief 200 ms display — respond as fast as possible' }
    ]
  },
  N300: {
    name: 'N300 OBJECT PRIMING',
    body: 'The N300 reflects object-concept familiarity and categorical priming. A prime object is shown, then a target — decide if they share a semantic category. Matching pairs elicit a smaller N300 (~300 ms, central-occipital) than mismatching pairs.',
    rules: [
      { key: 'F', desc: 'SAME — prime and target are the same category' },
      { key: 'J', desc: 'DIFFERENT — target is from a different category' },
      { key: 'N300', desc: 'Central-occipital negative component ~300 ms, smaller for congruent pairs' },
      { key: 'CATEGORIES', desc: 'Animals, vehicles, food, tools, furniture' }
    ]
  },
  ELAN: {
    name: 'ELAN — EARLY LEFT ANTERIOR NEGATIVITY',
    body: 'The ELAN is an ultra-early syntactic component (100–200 ms) over left anterior scalp, preceding the P600. It reflects automatic detection of word-class violations at phrase boundaries. Sentences appear word-by-word; respond grammatical or violation.',
    rules: [
      { key: 'F', desc: 'GRAMMATICAL — sentence is syntactically correct' },
      { key: 'J', desc: 'VIOLATION — sentence contains a phrase-structure error' },
      { key: 'ELAN', desc: 'Left anterior negativity 100–200 ms — pre-attentive syntax detection' },
      { key: 'vs P600', desc: 'ELAN = early automatic; P600 = later reanalysis' }
    ]
  },
  BP: {
    name: 'READINESS POTENTIAL (BEREITSCHAFTSPOTENTIAL)',
    body: "The Bereitschaftspotential is a slow negative ramp over motor cortex (Cz) beginning ~1–2 seconds before a voluntary self-paced keypress. Press SPACE whenever you feel a spontaneous urge — no external cue. Famous from Libet's free-will experiments.",
    rules: [
      { key: 'SPACE', desc: 'Press whenever you feel a spontaneous urge — self-paced' },
      { key: 'INTERVALS', desc: 'Wait at least 4 seconds between presses' },
      { key: 'DO NOT PLAN', desc: 'Avoid pre-planning — let each movement arise naturally' },
      { key: 'BP', desc: 'Slow negative ramp ~1500 ms before keypress over Cz' }
    ]
  },
  MMNSP: {
    name: 'MMN — SPEECH PHONEMES',
    body: 'Passive phoneme-contrast MMN. Synthesized /ba/ (standard, 80%) and /pa/ (deviant, 20%) are presented — contrasting in voice-onset time. No response required. The speech MMN is a biomarker used in dyslexia, aphasia, and language development research.',
    rules: [
      { key: 'PASSIVE', desc: 'No response required — listen or read quietly' },
      { key: 'STANDARD /ba/', desc: 'Short voice-onset time — frequent, 80% of trials' },
      { key: 'DEVIANT /pa/', desc: 'Long voice-onset time — rare, 20% of trials' },
      { key: 'MMN', desc: 'Fronto-central negativity 100–250 ms after deviant onset' }
    ]
  },
  SSVEP: {
    name: 'SSVEP — STEADY-STATE VISUAL EVOKED POTENTIAL',
    body: 'Two patches flicker at different frequencies (10 Hz left, 15 Hz right). Your EEG shows sharp spectral peaks at exactly these frequencies in occipital channels — the SSVEP. Periodically you are queried which side you were attending; SSVEP amplitude is larger for the attended side.',
    rules: [
      { key: 'FIXATE', desc: 'Keep gaze on the central cross — do not look at the patches' },
      { key: 'F', desc: 'Report attending LEFT patch when queried' },
      { key: 'J', desc: 'Report attending RIGHT patch when queried' },
      { key: 'EEG', desc: 'Occipital power at driving frequency is larger for attended side' }
    ]
  }
});

// ── N200 / NoGo N2 ───────────────────────────────
const N200 = { active:false, isPractice:false, trial:0, maxTrials:0, waiting:false,
  stimOn:0, isGo:false, responded:false, log:[], practiceLog:[], _timers:[],
  stimDur:500, isiMin:800, isiMax:1400, goProb:0.75 };
function n200T(fn,ms){ const t=setTimeout(fn,ms); N200._timers.push(t); return t; }
function n200Clear(){ N200._timers.forEach(t=>clearTimeout(t)); N200._timers=[]; }
function startN200(isPractice){
  N200.active=true; N200.isPractice=isPractice;
  N200.trial=0; N200.maxTrials = taskTrials('N200',10,40,isPractice);
  if(isPractice) N200.practiceLog=[]; else N200.log=[];
  n200Clear(); hideAll();
  $('n200Screen').style.display='flex';
  $('n200PracticeBanner').style.display=isPractice?'block':'none';
  $('n200ProgressBar').style.width='0%';
  $('n200StimPhase').style.display='flex'; $('n200ResultsPhase').style.display='none';
  $('si-task').textContent='N200'+(isPractice?' (PRAC)':''); $('exportBtn').disabled=true;
  n200T(n200Next,600);
}
function n200Next(){
  if(N200.trial>=N200.maxTrials){n200End();return;}
  N200.trial++;
  $('n200ProgressBar').style.width=((N200.trial-1)/N200.maxTrials*100).toFixed(1)+'%';
  $('n200-trial').textContent='Trial '+N200.trial+'/'+N200.maxTrials;
  $('n200Feedback').textContent=''; $('n200Feedback').className='feedback';
  N200.isGo=Math.random()<N200.goProb; N200.responded=false; N200.waiting=true;
  const stim=$('n200Stim');
  if(N200.isGo){
    stim.textContent='●';stim.style.color='var(--gold)';stim.style.borderColor='var(--gold)';stim.style.background='rgba(212,180,86,0.08)';
    $('n200-phase').textContent=tr('GO');
  } else {
    stim.textContent='○';stim.style.color='#5b9fda';stim.style.borderColor='#5b9fda';stim.style.background='rgba(91,159,218,0.08)';
    $('n200-phase').textContent=tr('NO-GO');
  }
  N200.stimOn=performance.now(); triggerFlash();
  n200T(()=>{stim.textContent='';stim.style.color='';stim.style.borderColor='#1a2f44';stim.style.background='#0a1620';},N200.stimDur);
  n200T(n200TrialEnd,N200.stimDur+600);
}
function n200TrialEnd(){
  if(!N200.responded){
    const correct=!N200.isGo;
    (N200.isPractice?N200.practiceLog:N200.log).push({trial:N200.trial,isGo:N200.isGo,response:'none',correct,rt:null});
    if(N200.isGo){$('n200Feedback').textContent=tr('MISS');$('n200Feedback').className='feedback err';}
  }
  N200.waiting=false;
  n200T(n200Next,N200.isiMin+Math.random()*(N200.isiMax-N200.isiMin));
}
function n200Respond(){
  if(!N200.waiting||N200.responded)return; N200.responded=true; N200.waiting=false;
  const rt=+(performance.now()-N200.stimOn).toFixed(1);
  const correct=N200.isGo;
  (N200.isPractice?N200.practiceLog:N200.log).push({trial:N200.trial,isGo:N200.isGo,response:'press',correct,rt});
  const fb=$('n200Feedback');
  fb.textContent=correct?rt.toFixed(0)+' ms ✓':rt.toFixed(0)+' ms ✗ FA';
  fb.className='feedback '+(correct?'ok':'err');
}
function n200End(){
  n200Clear(); N200.active=false; $('n200StimPhase').style.display='none'; $('n200ProgressBar').style.width='100%';
  const log=N200.isPractice?N200.practiceLog:N200.log;
  if(N200.isPractice){
    const c=log.filter(r=>r.correct).length; hideAll();
    $('pcStats').innerHTML='ACC <span>'+(log.length?(c/log.length*100).toFixed(0):0)+'%</span>';
    $('practiceComplete').style.display='flex'; return;
  }
  $('exportBtn').disabled=false;
  const goes=log.filter(r=>r.isGo),nogos=log.filter(r=>!r.isGo);
  const goHits=goes.filter(r=>r.correct&&r.rt),fas=nogos.filter(r=>!r.correct);
  const goRT=goHits.length?(goHits.reduce((a,b)=>a+b.rt,0)/goHits.length).toFixed(0):'—';
  $('n200Metrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+goRT+'ms</div><div class="vm-lbl">Go RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+goes.filter(r=>!r.correct).length+'</div><div class="vm-lbl">Omissions</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+fas.length+'</div><div class="vm-lbl">False Alarms</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(nogos.length?(fas.length/nogos.length*100).toFixed(0):0)+'%</div><div class="vm-lbl">FA Rate</div></div>';
  $('n200ResultsPhase').style.display='block';
}
function n200ExportCSV(){
  if(!N200.log.length)return;
  const h='trial,is_go,response,correct,rt_ms\n';
  const rows=N200.log.map(r=>[r.trial,r.isGo?1:0,r.response,r.correct?1:0,r.rt!=null?r.rt:''].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'}); const a=document.createElement('a');
  a.href=URL.createObjectURL(blob); a.download='n200_'+Date.now()+'.csv'; a.click();
}
document.addEventListener('keydown',e=>{
  if(!N200.active)return;
  if(e.key==='f'||e.key==='F'||e.code==='Space'){e.preventDefault();n200Respond();}
});

// ── N170 Face / Object ───────────────────────────
const N170={active:false,isPractice:false,trial:0,maxTrials:0,waiting:false,stimOn:0,currentType:'',log:[],practiceLog:[],_timers:[]};
function n170T(fn,ms){const t=setTimeout(fn,ms);N170._timers.push(t);return t;}
function n170Clear(){N170._timers.forEach(t=>clearTimeout(t));N170._timers=[];}
function n170DrawFace(ctx,inv){
  ctx.clearRect(0,0,240,240);
  ctx.save();
  if(inv){ctx.translate(120,120);ctx.rotate(Math.PI);ctx.translate(-120,-120);}
  ctx.beginPath();ctx.ellipse(120,115,72,90,0,0,Math.PI*2);ctx.strokeStyle='#8ab4d0';ctx.lineWidth=2;ctx.stroke();
  [-32,32].forEach(dx=>{
    ctx.beginPath();ctx.ellipse(120+dx,92,13,9,0,0,Math.PI*2);ctx.strokeStyle='#d4b456';ctx.lineWidth=2;ctx.stroke();
    ctx.beginPath();ctx.arc(120+dx,92,5,0,Math.PI*2);ctx.fillStyle='#d4b456';ctx.fill();
  });
  ctx.beginPath();ctx.moveTo(120,108);ctx.lineTo(113,130);ctx.lineTo(127,130);ctx.strokeStyle='#8ab4d0';ctx.lineWidth=1.5;ctx.stroke();
  ctx.beginPath();ctx.arc(120,146,22,0.2,Math.PI-0.2);ctx.strokeStyle='#8ab4d0';ctx.lineWidth=2;ctx.stroke();
  [-32,32].forEach(dx=>{ctx.beginPath();ctx.moveTo(120+dx-14,78);ctx.lineTo(120+dx+14,78);ctx.strokeStyle='#8ab4d0';ctx.lineWidth=2;ctx.stroke();});
  ctx.restore();
}
function n170DrawObject(ctx){
  ctx.clearRect(0,0,240,240);
  const shapes=['circle','triangle','diamond','hexagon'];
  const shape=shapes[Math.floor(Math.random()*shapes.length)];
  ctx.strokeStyle='#8ab4d0';ctx.lineWidth=2;ctx.fillStyle='rgba(138,180,208,0.12)';
  ctx.beginPath();
  if(shape==='circle'){ctx.arc(120,120,72,0,Math.PI*2);}
  else if(shape==='triangle'){ctx.moveTo(120,45);ctx.lineTo(198,195);ctx.lineTo(42,195);ctx.closePath();}
  else if(shape==='diamond'){ctx.moveTo(120,42);ctx.lineTo(198,120);ctx.lineTo(120,198);ctx.lineTo(42,120);ctx.closePath();}
  else{for(let i=0;i<6;i++){const a=i*Math.PI/3-Math.PI/6,x=120+72*Math.cos(a),y=120+72*Math.sin(a);i===0?ctx.moveTo(x,y):ctx.lineTo(x,y);}ctx.closePath();}
  ctx.fill();ctx.stroke();
}
function startN170(isPractice){
  N170.active=true;N170.isPractice=isPractice;N170.trial=0;N170.maxTrials = taskTrials('N170',9,30,isPractice);
  if(isPractice)N170.practiceLog=[];else N170.log=[];
  n170Clear();hideAll();$('n170Screen').style.display='flex';
  $('n170PracticeBanner').style.display=isPractice?'block':'none';
  $('n170ProgressBar').style.width='0%';$('n170StimPhase').style.display='flex';$('n170ResultsPhase').style.display='none';
  $('si-task').textContent='N170'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  Trigger.send(10,'N170_block_start',{task:'N170',practice:isPractice,n_trials:N170.maxTrials,classes:{41:'face_upright',42:'face_inverted',43:'object'}});
  n170T(n170Next,600);
}
function n170Next(){
  if(N170.trial>=N170.maxTrials){n170End();return;}
  N170.trial++;
  $('n170ProgressBar').style.width=((N170.trial-1)/N170.maxTrials*100).toFixed(1)+'%';
  $('n170-trial').textContent='Trial '+N170.trial+'/'+N170.maxTrials;
  $('n170Feedback').textContent='';$('n170Feedback').className='feedback';$('n170Label').textContent='';
  const r=Math.random();let type=r<0.4?'face-upright':r<0.7?'face-inverted':'object';
  N170.currentType=type;N170.waiting=true;N170.stimOn=performance.now();
  const ctx=$('n170Cvs').getContext('2d');
  if(type==='object')n170DrawObject(ctx);else n170DrawFace(ctx,type==='face-inverted');
  $('n170-phase').textContent=type==='object'?'OBJECT':'FACE'; triggerFlash();
  // Trigger: stim onset — 41 face-upright, 42 face-inverted, 43 object
  var stimCode = type==='face-upright'?41:(type==='face-inverted'?42:43);
  Trigger.send(stimCode, 'N170_'+type.replace('-','_'), {task:'N170',trial:N170.trial,stim_type:type});
  n170T(()=>{ctx.clearRect(0,0,240,240);$('n170Label').textContent='?';},300);
  n170T(n170TrialEnd,1000);
}
function n170TrialEnd(){
  if(!N170.waiting)return; N170.waiting=false;
  const isFace=N170.currentType!=='object';
  // Trigger: omission (52) if any
  Trigger.send(52,'N170_omission',{task:'N170',trial:N170.trial,stim_type:N170.currentType});
  (N170.isPractice?N170.practiceLog:N170.log).push({trial:N170.trial,type:N170.currentType,response:'none',correct:!isFace,rt:null});
  if(isFace){$('n170Feedback').textContent=tr('MISS');$('n170Feedback').className='feedback err';}
  n170T(n170Next,1000);   // 1 s ISI before the next stimulus
}
function n170Respond(isFaceResp){
  if(!N170.waiting)return; N170.waiting=false;
  const rt=+(performance.now()-N170.stimOn).toFixed(1);
  const isFace=N170.currentType!=='object';const correct=isFace===isFaceResp;
  // Trigger: response — 50 correct, 51 incorrect
  Trigger.send(correct?50:51, 'N170_'+(correct?'correct':'incorrect'), {task:'N170',trial:N170.trial,stim_type:N170.currentType,response:isFaceResp?'face':'object',rt:rt});
  (N170.isPractice?N170.practiceLog:N170.log).push({trial:N170.trial,type:N170.currentType,response:isFaceResp?'face':'object',correct,rt});
  const fb=$('n170Feedback');fb.textContent=correct?rt.toFixed(0)+' ms ✓':rt.toFixed(0)+' ms ✗';fb.className='feedback '+(correct?'ok':'err');
  n170T(n170Next,1000);   // 1 s ISI before the next stimulus
}
function n170End(){
  n170Clear();N170.active=false;$('n170StimPhase').style.display='none';$('n170ProgressBar').style.width='100%';
  Trigger.send(11,'N170_block_end',{task:'N170'});
  const log=N170.isPractice?N170.practiceLog:N170.log;
  if(N170.isPractice){const c=log.filter(r=>r.correct).length;hideAll();$('pcStats').innerHTML='ACC <span>'+(log.length?(c/log.length*100).toFixed(0):0)+'%</span>';$('practiceComplete').style.display='flex';return;}
  $('exportBtn').disabled=false;
  const faces=log.filter(r=>r.type!=='object'),objs=log.filter(r=>r.type==='object');
  const fRT=faces.filter(r=>r.rt),oRT=objs.filter(r=>r.rt);
  $('n170Metrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+(fRT.length?(fRT.reduce((a,b)=>a+b.rt,0)/fRT.length).toFixed(0):'—')+'ms</div><div class="vm-lbl">Face RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(oRT.length?(oRT.reduce((a,b)=>a+b.rt,0)/oRT.length).toFixed(0):'—')+'ms</div><div class="vm-lbl">Object RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(log.filter(r=>r.correct).length/log.length*100).toFixed(0)+'%</div><div class="vm-lbl">Accuracy</div></div>';
  $('n170ResultsPhase').style.display='block';
}
function n170ExportCSV(){
  if(!N170.log.length)return;
  const h='trial,type,response,correct,rt_ms\n';const rows=N170.log.map(r=>[r.trial,r.type,r.response,r.correct?1:0,r.rt!=null?r.rt:''].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});const a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='n170_'+Date.now()+'.csv';a.click();
}
document.addEventListener('keydown',e=>{
  if(!N170.active||!N170.waiting)return;
  if(e.key==='f'||e.key==='F'){e.preventDefault();n170Respond(true);}
  if(e.key==='j'||e.key==='J'){e.preventDefault();n170Respond(false);}
});

// ── LRP ──────────────────────────────────────────
const LRP={active:false,isPractice:false,trial:0,maxTrials:0,waiting:false,stimOn:0,dir:'',log:[],practiceLog:[],_timers:[],deadline:800};
function lrpT(fn,ms){const t=setTimeout(fn,ms);LRP._timers.push(t);return t;}
function lrpClear(){LRP._timers.forEach(t=>clearTimeout(t));LRP._timers=[];}
function startLRP(isPractice){
  LRP.active=true;LRP.isPractice=isPractice;LRP.trial=0;LRP.maxTrials=isPractice?10:(parseInt($('trialsInput').value)||40);
  if(isPractice)LRP.practiceLog=[];else LRP.log=[];
  lrpClear();hideAll();$('lrpScreen').style.display='flex';
  $('lrpPracticeBanner').style.display=isPractice?'block':'none';$('lrpProgressBar').style.width='0%';
  $('lrpStimPhase').style.display='flex';$('lrpResultsPhase').style.display='none';
  $('si-task').textContent='LRP'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  Trigger.send(10,'LRP_block_start',{task:'LRP',practice:isPractice,n_trials:LRP.maxTrials,deadline_ms:LRP.deadline,classes:{41:'left_cue',42:'right_cue'}});
  lrpT(lrpNext,600);
}
function lrpNext(){
  if(LRP.trial>=LRP.maxTrials){lrpEnd();return;}
  LRP.trial++;
  $('lrpProgressBar').style.width=((LRP.trial-1)/LRP.maxTrials*100).toFixed(1)+'%';
  $('lrp-trial').textContent='Trial '+LRP.trial+'/'+LRP.maxTrials;
  $('lrpFeedback').textContent='';$('lrpFeedback').className='feedback';
  $('lrpLeft').style.color='var(--dim)';$('lrpLeft').style.borderColor='#1a2f44';
  $('lrpRight').style.color='var(--dim)';$('lrpRight').style.borderColor='#1a2f44';
  $('lrpFix').textContent='+';$('lrp-phase').textContent=tr('FIXATION');LRP.waiting=false;
  lrpT(()=>{
    LRP.dir=Math.random()<0.5?'L':'R';$('lrp-phase').textContent=LRP.dir==='L'?'LEFT':'RIGHT';
    if(LRP.dir==='L'){$('lrpLeft').style.color='var(--gold)';$('lrpLeft').style.borderColor='var(--gold)';}
    else{$('lrpRight').style.color='var(--gold)';$('lrpRight').style.borderColor='var(--gold)';}
    LRP.stimOn=performance.now();LRP.waiting=true;triggerFlash();
    // Trigger: stim onset — 41 left, 42 right (the side defines motor-prep lateralization)
    Trigger.send(LRP.dir==='L'?41:42, 'LRP_'+(LRP.dir==='L'?'left':'right'), {task:'LRP',trial:LRP.trial,direction:LRP.dir});
    lrpT(()=>{if(LRP.waiting)lrpRespond('TIMEOUT');},LRP.deadline);
  },500+Math.random()*300);
}
function lrpRespond(resp){
  if(!LRP.waiting)return;LRP.waiting=false;lrpClear();
  const rt=resp==='TIMEOUT'?null:+(performance.now()-LRP.stimOn).toFixed(1);
  const correct=resp===LRP.dir;
  // Trigger: response — 50 correct, 51 incorrect, 52 omission
  Trigger.send(resp==='TIMEOUT'?52:(correct?50:51), 'LRP_'+(resp==='TIMEOUT'?'timeout':(correct?'correct':'incorrect')), {task:'LRP',trial:LRP.trial,direction:LRP.dir,response:resp,rt:rt});
  (LRP.isPractice?LRP.practiceLog:LRP.log).push({trial:LRP.trial,dir:LRP.dir,response:resp,correct,rt});
  const fb=$('lrpFeedback');
  if(resp==='TIMEOUT'){fb.textContent=tr('TOO SLOW');fb.className='feedback timeout';}
  else{fb.textContent=rt.toFixed(0)+' ms '+(correct?'✓':'✗');fb.className='feedback '+(correct?'ok':'err');}
  $('lrpLeft').style.color='var(--dim)';$('lrpLeft').style.borderColor='#1a2f44';
  $('lrpRight').style.color='var(--dim)';$('lrpRight').style.borderColor='#1a2f44';
  lrpT(lrpNext,500);
}
function lrpEnd(){
  lrpClear();LRP.active=false;$('lrpStimPhase').style.display='none';$('lrpProgressBar').style.width='100%';
  Trigger.send(11,'LRP_block_end',{task:'LRP'});
  const log=LRP.isPractice?LRP.practiceLog:LRP.log;
  if(LRP.isPractice){const c=log.filter(r=>r.correct).length;hideAll();$('pcStats').innerHTML='ACC <span>'+(log.length?(c/log.length*100).toFixed(0):0)+'%</span>';$('practiceComplete').style.display='flex';return;}
  $('exportBtn').disabled=false;
  const left=log.filter(r=>r.dir==='L'&&r.rt),right=log.filter(r=>r.dir==='R'&&r.rt);
  $('lrpMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+(left.length?(left.reduce((a,b)=>a+b.rt,0)/left.length).toFixed(0):'—')+'ms</div><div class="vm-lbl">Left RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(right.length?(right.reduce((a,b)=>a+b.rt,0)/right.length).toFixed(0):'—')+'ms</div><div class="vm-lbl">Right RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(log.filter(r=>r.correct).length/log.length*100).toFixed(0)+'%</div><div class="vm-lbl">Accuracy</div></div>';
  $('lrpResultsPhase').style.display='block';
}
function lrpExportCSV(){
  if(!LRP.log.length)return;const h='trial,dir,response,correct,rt_ms\n';
  const rows=LRP.log.map(r=>[r.trial,r.dir,r.response,r.correct?1:0,r.rt!=null?r.rt:''].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});const a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='lrp_'+Date.now()+'.csv';a.click();
}
document.addEventListener('keydown',e=>{
  if(!LRP.active||!LRP.waiting)return;
  if(e.key==='f'||e.key==='F'){e.preventDefault();lrpRespond('L');}
  if(e.key==='j'||e.key==='J'){e.preventDefault();lrpRespond('R');}
});


// ── N2pc ─────────────────────────────────────────
const N2PC={active:false,isPractice:false,trial:0,maxTrials:0,waiting:false,stimOn:0,targetSide:'',log:[],practiceLog:[],_timers:[]};
function n2pcT(fn,ms){const t=setTimeout(fn,ms);N2PC._timers.push(t);return t;}
function n2pcClear(){N2PC._timers.forEach(t=>clearTimeout(t));N2PC._timers=[];}
function n2pcDraw(targetSide){
  const cvs=$('n2pcCvs'),ctx=cvs.getContext('2d');
  const W=640,H=420,cx=W/2,cy=H/2;
  ctx.clearRect(0,0,W,H);ctx.fillStyle='#060d14';ctx.fillRect(0,0,W,H);
  ctx.strokeStyle='rgba(138,180,208,0.6)';ctx.lineWidth=2;
  // central fixation cross
  ctx.beginPath();ctx.moveTo(cx,cy-15);ctx.lineTo(cx,cy+15);ctx.moveTo(cx-15,cy);ctx.lineTo(cx+15,cy);ctx.stroke();
  const GOLD='#d4b456',GRAY='rgba(138,180,208,0.35)';
  const R=21;  // circle radius (was 14)
  const positions_l=[[90,120],[90,210],[90,300],[165,120],[165,210],[165,300]];
  const positions_r=[[475,120],[475,210],[475,300],[550,120],[550,210],[550,300]];
  const targetIdx=Math.floor(Math.random()*6);
  [positions_l,positions_r].forEach((side,si)=>{
    const isTS=(si===0&&targetSide==='L')||(si===1&&targetSide==='R');
    side.forEach((pos,pi)=>{
      const isT=isTS&&pi===targetIdx;
      ctx.beginPath();ctx.arc(pos[0],pos[1],R,0,Math.PI*2);
      ctx.fillStyle=isT?'rgba(212,180,86,0.15)':GRAY;ctx.strokeStyle=isT?GOLD:GRAY;ctx.lineWidth=isT?3:1.5;ctx.fill();ctx.stroke();
      if(!isT){ctx.strokeStyle=GRAY;ctx.lineWidth=2;ctx.beginPath();ctx.moveTo(pos[0]-9,pos[1]);ctx.lineTo(pos[0]+9,pos[1]);ctx.stroke();}
    });
  });
}
function startN2PC(isPractice){
  N2PC.active=true;N2PC.isPractice=isPractice;N2PC.trial=0;N2PC.maxTrials = taskTrials('N2PC',10,40,isPractice);
  if(isPractice)N2PC.practiceLog=[];else N2PC.log=[];
  n2pcClear();hideAll();$('n2pcScreen').style.display='flex';
  $('n2pcPracticeBanner').style.display=isPractice?'block':'none';$('n2pcProgressBar').style.width='0%';
  $('n2pcStimPhase').style.display='flex';$('n2pcResultsPhase').style.display='none';
  $('si-task').textContent='N2pc'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  Trigger.send(10,'N2PC_block_start',{task:'N2PC',practice:isPractice,n_trials:N2PC.maxTrials,classes:{41:'target_left',42:'target_right'}});
  const ctx=$('n2pcCvs').getContext('2d');ctx.fillStyle='#060d14';ctx.fillRect(0,0,640,420);
  n2pcT(n2pcNext,800);
}
function n2pcNext(){
  if(N2PC.trial>=N2PC.maxTrials){n2pcEnd();return;}
  N2PC.trial++;
  $('n2pcProgressBar').style.width=((N2PC.trial-1)/N2PC.maxTrials*100).toFixed(1)+'%';
  $('n2pc-trial').textContent='Trial '+N2PC.trial+'/'+N2PC.maxTrials;
  $('n2pcFeedback').textContent='';$('n2pcFeedback').className='feedback';$('n2pc-phase').textContent=tr('FIXATION');
  const ctx=$('n2pcCvs').getContext('2d');ctx.fillStyle='#060d14';ctx.fillRect(0,0,640,420);
  ctx.strokeStyle='rgba(138,180,208,0.6)';ctx.lineWidth=2;ctx.beginPath();ctx.moveTo(320,195);ctx.lineTo(320,225);ctx.moveTo(305,210);ctx.lineTo(335,210);ctx.stroke();
  n2pcT(()=>{
    N2PC.targetSide=Math.random()<0.5?'L':'R';n2pcDraw(N2PC.targetSide);
    $('n2pc-phase').textContent=tr('SEARCH');N2PC.waiting=true;N2PC.stimOn=performance.now();triggerFlash();
    // Trigger: stim onset — 41 target on left, 42 target on right (key for N2pc contralateral)
    Trigger.send(N2PC.targetSide==='L'?41:42, 'N2PC_target_'+(N2PC.targetSide==='L'?'left':'right'), {task:'N2PC',trial:N2PC.trial,target_side:N2PC.targetSide});
    n2pcT(()=>{const c=$('n2pcCvs').getContext('2d');c.fillStyle='#060d14';c.fillRect(0,0,640,420);},200);
    n2pcT(()=>{if(N2PC.waiting)n2pcRespond('TIMEOUT');},1000);
  },400+Math.random()*200);
}
function n2pcRespond(resp){
  if(!N2PC.waiting)return;N2PC.waiting=false;n2pcClear();
  const rt=resp==='TIMEOUT'?null:+(performance.now()-N2PC.stimOn).toFixed(1);
  const correct=resp===N2PC.targetSide;
  Trigger.send(resp==='TIMEOUT'?52:(correct?50:51),'N2PC_'+(resp==='TIMEOUT'?'timeout':(correct?'correct':'incorrect')),{task:'N2PC',trial:N2PC.trial,target_side:N2PC.targetSide,response:resp,rt:rt});
  (N2PC.isPractice?N2PC.practiceLog:N2PC.log).push({trial:N2PC.trial,targetSide:N2PC.targetSide,response:resp,correct,rt});
  const fb=$('n2pcFeedback');
  if(resp==='TIMEOUT'){fb.textContent=tr('TOO SLOW');fb.className='feedback timeout';}
  else{fb.textContent=rt.toFixed(0)+' ms '+(correct?'✓':'✗');fb.className='feedback '+(correct?'ok':'err');}
  n2pcT(n2pcNext,500);
}
function n2pcEnd(){
  n2pcClear();N2PC.active=false;$('n2pcStimPhase').style.display='none';$('n2pcProgressBar').style.width='100%';
  Trigger.send(11,'N2PC_block_end',{task:'N2PC'});
  const log=N2PC.isPractice?N2PC.practiceLog:N2PC.log;
  if(N2PC.isPractice){const c=log.filter(r=>r.correct).length;hideAll();$('pcStats').innerHTML='ACC <span>'+(log.length?(c/log.length*100).toFixed(0):0)+'%</span>';$('practiceComplete').style.display='flex';return;}
  $('exportBtn').disabled=false;
  const valid=log.filter(r=>r.rt),acc=(log.filter(r=>r.correct).length/log.length*100).toFixed(0);
  const avgRT=valid.length?(valid.reduce((a,b)=>a+b.rt,0)/valid.length).toFixed(0):'—';
  $('n2pcMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+avgRT+'ms</div><div class="vm-lbl">Avg RT</div></div><div class="vrt-metric"><div class="vm-val">'+acc+'%</div><div class="vm-lbl">Accuracy</div></div>';
  $('n2pcResultsPhase').style.display='block';
}
function n2pcExportCSV(){
  if(!N2PC.log.length)return;const h='trial,target_side,response,correct,rt_ms\n';
  const rows=N2PC.log.map(r=>[r.trial,r.targetSide,r.response,r.correct?1:0,r.rt!=null?r.rt:''].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});const a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='n2pc_'+Date.now()+'.csv';a.click();
}
document.addEventListener('keydown',e=>{
  if(!N2PC.active||!N2PC.waiting)return;
  if(e.key==='f'||e.key==='F'){e.preventDefault();n2pcRespond('L');}
  if(e.key==='j'||e.key==='J'){e.preventDefault();n2pcRespond('R');}
});

// ── N300 Object Priming ───────────────────────────
const N300_CATS={animals:['🐱','🐶','🐭','🐸','🐧','🦊','🐻','🐨'],vehicles:['🚗','🚕','🚙','🚌','🏎','🚂','✈️','🚢'],food:['🍎','🍕','🍔','🍣','🍩','🌮','🍜','🥐'],tools:['🔨','🔧','✂️','🔑','🔩','🪛','🔦','📐'],furniture:['🪑','🛋','🛏','🪞','🚪','🪟','🗄','🖼']};
const N300_CNS=Object.keys(N300_CATS);
const N300={active:false,isPractice:false,trial:0,maxTrials:0,waiting:false,stimOn:0,congruent:false,_primeCat:'',_targetCat:'',log:[],practiceLog:[],_timers:[]};
function n300T(fn,ms){const t=setTimeout(fn,ms);N300._timers.push(t);return t;}
function n300Clear(){N300._timers.forEach(t=>clearTimeout(t));N300._timers=[];}
function startN300(isPractice){
  N300.active=true;N300.isPractice=isPractice;N300.trial=0;N300.maxTrials = taskTrials('N300',5,40,isPractice);
  if(isPractice)N300.practiceLog=[];else N300.log=[];
  n300Clear();hideAll();$('n300Screen').style.display='flex';
  $('n300PracticeBanner').style.display=isPractice?'block':'none';$('n300ProgressBar').style.width='0%';
  $('n300StimPhase').style.display='flex';$('n300ResultsPhase').style.display='none';
  $('si-task').textContent='N300'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  Trigger.send(10,'N300_block_start',{task:'N300',practice:isPractice,n_trials:N300.maxTrials,classes:{41:'congruent',42:'incongruent'}});
  n300T(n300Next,600);
}
function n300Next(){
  if(N300.trial>=N300.maxTrials){n300End();return;}
  N300.trial++;
  $('n300ProgressBar').style.width=((N300.trial-1)/N300.maxTrials*100).toFixed(1)+'%';
  $('n300-trial').textContent='Trial '+N300.trial+'/'+N300.maxTrials;
  $('n300Feedback').textContent='';$('n300Feedback').className='feedback';
  $('n300Prime').textContent='';$('n300Target').textContent='';$('n300Arrow').style.opacity='0.3';$('n300-phase').textContent=tr('FIXATION');
  N300.congruent=Math.random()<0.6;
  const pc=N300_CNS[Math.floor(Math.random()*N300_CNS.length)];
  const tc=N300.congruent?pc:N300_CNS.filter(c=>c!==pc)[Math.floor(Math.random()*4)];
  const pi=N300_CATS[pc],ti=N300_CATS[tc];
  const pe=pi[Math.floor(Math.random()*pi.length)];
  let te;do{te=ti[Math.floor(Math.random()*ti.length)];}while(te===pe);
  N300._primeCat=pc;N300._targetCat=tc;
  $('n300Prime').textContent=pe;$('n300-phase').textContent=tr('PRIME');
  n300T(()=>{
    $('n300Prime').textContent='';$('n300Arrow').style.opacity='1';$('n300-phase').textContent=tr('TARGET');
    n300T(()=>{
      $('n300Target').textContent=te;N300.stimOn=performance.now();N300.waiting=true;triggerFlash();
      // Trigger: target onset — 41 congruent, 42 incongruent
      Trigger.send(N300.congruent?41:42,'N300_'+(N300.congruent?'congruent':'incongruent'),{task:'N300',trial:N300.trial,prime_cat:N300._primeCat,target_cat:N300._targetCat,congruent:N300.congruent});
      n300T(()=>{if(N300.waiting)n300Respond('TIMEOUT');},1200);
    },150);
  },300);
}
function n300Respond(resp){
  if(!N300.waiting)return;N300.waiting=false;n300Clear();
  const rt=resp==='TIMEOUT'?null:+(performance.now()-N300.stimOn).toFixed(1);
  const correct=(resp==='SAME')===N300.congruent;
  Trigger.send(resp==='TIMEOUT'?52:(correct?50:51),'N300_'+(resp==='TIMEOUT'?'timeout':(correct?'correct':'incorrect')),{task:'N300',trial:N300.trial,rt:rt,response:resp});
  (N300.isPractice?N300.practiceLog:N300.log).push({trial:N300.trial,primeCat:N300._primeCat,targetCat:N300._targetCat,congruent:N300.congruent,response:resp,correct,rt});
  const fb=$('n300Feedback');
  if(resp==='TIMEOUT'){fb.textContent=tr('TOO SLOW');fb.className='feedback timeout';}
  else{fb.textContent=rt.toFixed(0)+' ms '+(correct?'✓':'✗');fb.className='feedback '+(correct?'ok':'err');}
  n300T(n300Next,1000);   // 1 s ISI before the next trial
}
function n300End(){
  n300Clear();N300.active=false;$('n300StimPhase').style.display='none';$('n300ProgressBar').style.width='100%';
  Trigger.send(11,'N300_block_end',{task:'N300'});
  const log=N300.isPractice?N300.practiceLog:N300.log;
  if(N300.isPractice){const c=log.filter(r=>r.correct).length;hideAll();$('pcStats').innerHTML='ACC <span>'+(log.length?(c/log.length*100).toFixed(0):0)+'%</span>';$('practiceComplete').style.display='flex';return;}
  $('exportBtn').disabled=false;
  const cong=log.filter(r=>r.congruent&&r.rt),incong=log.filter(r=>!r.congruent&&r.rt);
  const cRT=cong.length?(cong.reduce((a,b)=>a+b.rt,0)/cong.length).toFixed(0):'—';
  const iRT=incong.length?(incong.reduce((a,b)=>a+b.rt,0)/incong.length).toFixed(0):'—';
  const eff=(cong.length&&incong.length)?((incong.reduce((a,b)=>a+b.rt,0)/incong.length)-(cong.reduce((a,b)=>a+b.rt,0)/cong.length)).toFixed(0):'—';
  $('n300Metrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+cRT+'ms</div><div class="vm-lbl">Congruent RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+iRT+'ms</div><div class="vm-lbl">Incongruent RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+eff+'ms</div><div class="vm-lbl">Priming Effect</div></div>';
  $('n300ResultsPhase').style.display='block';
}
function n300ExportCSV(){
  if(!N300.log.length)return;const h='trial,prime_cat,target_cat,congruent,response,correct,rt_ms\n';
  const rows=N300.log.map(r=>[r.trial,r.primeCat,r.targetCat,r.congruent?1:0,r.response,r.correct?1:0,r.rt!=null?r.rt:''].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});const a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='n300_'+Date.now()+'.csv';a.click();
}
document.addEventListener('keydown',e=>{
  if(!N300.active||!N300.waiting)return;
  if(e.key==='f'||e.key==='F'){e.preventDefault();n300Respond('SAME');}
  if(e.key==='j'||e.key==='J'){e.preventDefault();n300Respond('DIFF');}
});

// ── ELAN ─────────────────────────────────────────
const ELAN_SENTS=[
  [['The','pianist','beautifully','played','the','sonata'],false],
  [['The','pianist','of','played','the','sonata'],true],
  [['She','carefully','placed','the','book','down'],false],
  [['She','carefully','the','book','placed','down'],true],
  [['The','doctor','examined','every','patient','quickly'],false],
  [['The','doctor','with','every','patient','quickly'],true],
  [['Children','usually','enjoy','playing','in','parks'],false],
  [['Children','usually','playing','enjoy','in','parks'],true],
  [['The','artist','painted','a','vivid','portrait'],false],
  [['The','artist','painted','a','with','portrait'],true],
  [['Birds','often','migrate','south','in','autumn'],false],
  [['Birds','often','south','migrate','in','autumn'],true],
  [['The','engineer','solved','the','complex','problem'],false],
  [['My','brother','quickly','of','his','homework'],true],
  [['My','brother','quickly','finished','his','homework'],false],
  [['The','teacher','explained','a','with','concept'],true],
  [['The','teacher','explained','the','difficult','concept'],false],
  [['Scientists','regularly','new','publish','research','findings'],true],
  [['Scientists','regularly','publish','new','research','findings'],false],
  [['The','nurse','kindly','helped','the','patient'],false],
];
const ELAN={active:false,isPractice:false,trial:0,maxTrials:0,waiting:false,stimOn:0,isViolation:false,deck:[],log:[],practiceLog:[],_timers:[]};
function elanT(fn,ms){const t=setTimeout(fn,ms);ELAN._timers.push(t);return t;}
function elanClear(){ELAN._timers.forEach(t=>clearTimeout(t));ELAN._timers=[];}
function elanBuildDeck(n){const d=[];while(d.length<n)d.push(...ELAN_SENTS.map((_,i)=>i));for(let i=d.length-1;i>0;i--){const j=Math.floor(Math.random()*(i+1));[d[i],d[j]]=[d[j],d[i]];}return d.slice(0,n);}
function startELAN(isPractice){
  ELAN.active=true;ELAN.isPractice=isPractice;ELAN.trial=0;ELAN.maxTrials = taskTrials('ELAN',5,30,isPractice);
  if(isPractice)ELAN.practiceLog=[];else ELAN.log=[];
  ELAN.deck=elanBuildDeck(ELAN.maxTrials);
  elanClear();hideAll();$('elanScreen').style.display='flex';
  $('elanPracticeBanner').style.display=isPractice?'block':'none';$('elanProgressBar').style.width='0%';
  $('elanStimPhase').style.display='flex';$('elanResultsPhase').style.display='none';
  $('si-task').textContent='ELAN'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  Trigger.send(10,'ELAN_block_start',{task:'ELAN',practice:isPractice,n_trials:ELAN.maxTrials,classes:{41:'grammatical',42:'violation'}});
  elanT(elanNext,600);
}
function elanNext(){
  if(ELAN.trial>=ELAN.maxTrials){elanEnd();return;}
  ELAN.trial++;
  $('elanProgressBar').style.width=((ELAN.trial-1)/ELAN.maxTrials*100).toFixed(1)+'%';
  $('elan-trial').textContent='Trial '+ELAN.trial+'/'+ELAN.maxTrials;
  $('elanFeedback').textContent='';$('elanFeedback').className='feedback';$('elanSentence').textContent='';$('elanWordStream').textContent='+';$('elan-phase').textContent=tr('FIXATION');
  const idx=ELAN.deck[ELAN.trial-1];const[words,isViol]=ELAN_SENTS[idx];ELAN.isViolation=isViol;
  // Trigger: sentence-onset class marker (41 grammatical, 42 violation)
  Trigger.send(isViol?42:41,'ELAN_'+(isViol?'violation':'grammatical'),{task:'ELAN',trial:ELAN.trial,is_violation:isViol,sentence:words.join(' ')});
  let wi=0;
  function showWord(){
    if(wi>=words.length){
      $('elanWordStream').textContent='?';ELAN.stimOn=performance.now();ELAN.waiting=true;triggerFlash();$('elan-phase').textContent=tr('RESPOND');
      elanT(()=>{if(ELAN.waiting)elanRespond('TIMEOUT');},2000);return;
    }
    $('elanWordStream').textContent=words[wi];$('elan-phase').textContent=tr('READING');
    if(wi>0)$('elanSentence').textContent=words.slice(0,wi).join(' ')+' …';
    wi++;elanT(showWord,wi<=2?350:500);
  }
  elanT(()=>{$('elanWordStream').textContent='';showWord();},500);
}
function elanRespond(resp){
  if(!ELAN.waiting)return;ELAN.waiting=false;elanClear();
  const rt=resp==='TIMEOUT'?null:+(performance.now()-ELAN.stimOn).toFixed(1);
  const correct=(resp==='OK')!==ELAN.isViolation;
  Trigger.send(resp==='TIMEOUT'?52:(correct?50:51),'ELAN_'+(resp==='TIMEOUT'?'timeout':(correct?'correct':'incorrect')),{task:'ELAN',trial:ELAN.trial,rt:rt,response:resp});
  (ELAN.isPractice?ELAN.practiceLog:ELAN.log).push({trial:ELAN.trial,isViolation:ELAN.isViolation,response:resp,correct,rt});
  const fb=$('elanFeedback');
  if(resp==='TIMEOUT'){fb.textContent=tr('TOO SLOW');fb.className='feedback timeout';}
  else{fb.textContent=rt.toFixed(0)+' ms '+(correct?'✓':'✗');fb.className='feedback '+(correct?'ok':'err');}
  elanT(elanNext,600);
}
function elanEnd(){
  elanClear();ELAN.active=false;$('elanStimPhase').style.display='none';$('elanProgressBar').style.width='100%';
  Trigger.send(11,'ELAN_block_end',{task:'ELAN'});
  const log=ELAN.isPractice?ELAN.practiceLog:ELAN.log;
  if(ELAN.isPractice){const c=log.filter(r=>r.correct).length;hideAll();$('pcStats').innerHTML='ACC <span>'+(log.length?(c/log.length*100).toFixed(0):0)+'%</span>';$('practiceComplete').style.display='flex';return;}
  $('exportBtn').disabled=false;
  const gramm=log.filter(r=>!r.isViolation&&r.rt),viol=log.filter(r=>r.isViolation&&r.rt);
  const gRT=gramm.length?(gramm.reduce((a,b)=>a+b.rt,0)/gramm.length).toFixed(0):'—';
  const vRT=viol.length?(viol.reduce((a,b)=>a+b.rt,0)/viol.length).toFixed(0):'—';
  const eff=(gramm.length&&viol.length)?((viol.reduce((a,b)=>a+b.rt,0)/viol.length)-(gramm.reduce((a,b)=>a+b.rt,0)/gramm.length)).toFixed(0):'—';
  $('elanMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+gRT+'ms</div><div class="vm-lbl">Grammatical RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+vRT+'ms</div><div class="vm-lbl">Violation RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+eff+'ms</div><div class="vm-lbl">ELAN Effect</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(log.filter(r=>r.correct).length/log.length*100).toFixed(0)+'%</div><div class="vm-lbl">Accuracy</div></div>';
  $('elanResultsPhase').style.display='block';
}
function elanExportCSV(){
  if(!ELAN.log.length)return;const h='trial,is_violation,response,correct,rt_ms\n';
  const rows=ELAN.log.map(r=>[r.trial,r.isViolation?1:0,r.response,r.correct?1:0,r.rt!=null?r.rt:''].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});const a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='elan_'+Date.now()+'.csv';a.click();
}
document.addEventListener('keydown',e=>{
  if(!ELAN.active||!ELAN.waiting)return;
  if(e.key==='f'||e.key==='F'){e.preventDefault();elanRespond('OK');}
  if(e.key==='j'||e.key==='J'){e.preventDefault();elanRespond('VIOL');}
});

// ── BP — Bereitschaftspotential ───────────────────
const BP={active:false,isPractice:false,presses:[],maxPresses:0,lastPress:0,minITI:4000,_timer:null};
function startBP(isPractice){
  BP.active=true;BP.isPractice=isPractice;BP.presses=[];BP.lastPress=0;
  BP.maxPresses = taskTrials('BP',8,30,isPractice);
  if(BP._timer)clearTimeout(BP._timer);
  hideAll();$('bpScreen').style.display='flex';
  $('bpPracticeBanner').style.display=isPractice?'block':'none';$('bpProgressBar').style.width='0%';
  $('bpStimPhase').style.display='flex';$('bpResultsPhase').style.display='none';
  $('si-task').textContent='BP'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  $('bpCircle').textContent='+';$('bpCircle').style.borderColor='#1a2f44';$('bpCircle').style.background='#0a1620';
  $('bpFeedback').textContent='';$('bp-trial').textContent='0 / '+BP.maxPresses+' presses recorded';
  $('bpInstruct').textContent='Press SPACE whenever you feel a spontaneous urge. Wait at least 4 seconds between presses. Do not plan ahead.';
}
function bpRecordPress(){
  if(!BP.active)return;
  const now=performance.now();
  if(now-BP.lastPress<BP.minITI){$('bpFeedback').textContent=tr('TOO SOON');$('bpFeedback').className='feedback err';return;}
  BP.lastPress=now;
  const iti=BP.presses.length>0?+(now-BP.presses[BP.presses.length-1].t).toFixed(0):null;
  BP.presses.push({t:now,iti});triggerFlash();
  $('bpCircle').style.borderColor='var(--gold)';$('bpCircle').style.background='rgba(212,180,86,0.12)';
  $('bpFeedback').textContent='✓ Recorded';$('bpFeedback').className='feedback ok';
  $('bp-trial').textContent=BP.presses.length+' / '+BP.maxPresses+' presses recorded';
  $('bpProgressBar').style.width=(BP.presses.length/BP.maxPresses*100)+'%';
  if(BP._timer)clearTimeout(BP._timer);
  BP._timer=setTimeout(()=>{$('bpCircle').style.borderColor='#1a2f44';$('bpCircle').style.background='#0a1620';},200);
  if(BP.presses.length>=BP.maxPresses)BP._timer=setTimeout(bpEnd,600);
}
function bpEnd(){
  BP.active=false;$('bpStimPhase').style.display='none';$('bpProgressBar').style.width='100%';
  if(BP.isPractice){hideAll();$('pcStats').innerHTML='PRESSES <span>'+BP.presses.length+'</span>';$('practiceComplete').style.display='flex';return;}
  $('exportBtn').disabled=false;
  const itis=BP.presses.filter(p=>p.iti!==null).map(p=>p.iti);
  const mITI=itis.length?(itis.reduce((a,b)=>a+b,0)/itis.length).toFixed(0):'—';
  const sdITI=itis.length>1?Math.sqrt(itis.map(v=>(v-itis.reduce((a,b)=>a+b,0)/itis.length)**2).reduce((a,b)=>a+b,0)/itis.length).toFixed(0):'—';
  $('bpMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+BP.presses.length+'</div><div class="vm-lbl">Presses</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+mITI+'ms</div><div class="vm-lbl">Mean ITI</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+sdITI+'ms</div><div class="vm-lbl">ITI SD</div></div>';
  if(itis.length>2){
    const bins=8,min=Math.min(...itis),max=Math.max(...itis)+1,bw=(max-min)/bins;
    const counts=new Array(bins).fill(0);itis.forEach(v=>{const b=Math.min(bins-1,Math.floor((v-min)/bw));counts[b]++;});
    const maxC=Math.max(...counts);
    let bars='<div style="display:flex;gap:3px;align-items:flex-end;height:50px;margin-top:8px;">';
    counts.forEach((c,i)=>{const h=maxC>0?Math.round(c/maxC*46):0;bars+=`<div style="flex:1;height:${h}px;background:rgba(212,180,86,0.6);border-top:1px solid var(--gold);"></div>`;});
    bars+='</div><div style="font-size:0.65rem;color:var(--dim);margin-top:3px;">ITI distribution — irregular = valid self-pacing</div>';
    $('bpIITChart').innerHTML=bars;
  }
  $('bpResultsPhase').style.display='block';
}
function bpExportCSV(){
  if(!BP.presses.length)return;const h='press_n,timestamp_ms,iti_ms\n';
  const rows=BP.presses.map((p,i)=>[i+1,p.t.toFixed(0),p.iti!=null?p.iti:''].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});const a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='bp_'+Date.now()+'.csv';a.click();
}
document.addEventListener('keydown',e=>{
  if(!BP.active)return;if(e.code==='Space'){e.preventDefault();bpRecordPress();}
});

// ── MMN Speech ────────────────────────────────────
const MMNS={active:false,isPractice:false,trial:0,maxTrials:0,log:[],practiceLog:[],_timers:[],devProb:0.20,isi:600};
function mmnsT(fn,ms){const t=setTimeout(fn,ms);MMNS._timers.push(t);return t;}
function mmnsClear(){MMNS._timers.forEach(t=>clearTimeout(t));MMNS._timers=[];}
function mmnsPlaySyl(isDeviant){
  // R12: custom audio override
  if (typeof CustomAudio !== 'undefined' &&
      CustomAudio.tryPlay('mmnspeech-' + (isDeviant ? 'deviant' : 'standard'), 0.3)) {
    return;
  }
  try{
    const ctx=new(window.AudioContext||window.webkitAudioContext)();
    const vot=isDeviant?80:20;
    const bufLen=Math.round(ctx.sampleRate*vot/1000);
    const buf=ctx.createBuffer(1,bufLen,ctx.sampleRate);
    const d=buf.getChannelData(0);for(let i=0;i<bufLen;i++)d[i]=(Math.random()*2-1)*0.25;
    const src=ctx.createBufferSource();src.buffer=buf;
    const g=ctx.createGain();g.gain.setValueAtTime(0.3,ctx.currentTime);g.gain.linearRampToValueAtTime(0,ctx.currentTime+vot/1000);
    src.connect(g);g.connect(ctx.destination);src.start();
    const osc=ctx.createOscillator();osc.type='sawtooth';osc.frequency.value=120;
    const vg=ctx.createGain();vg.gain.setValueAtTime(0,ctx.currentTime+vot/1000);vg.gain.linearRampToValueAtTime(0.18,ctx.currentTime+vot/1000+0.01);vg.gain.linearRampToValueAtTime(0,ctx.currentTime+0.18);
    osc.connect(vg);vg.connect(ctx.destination);osc.start(ctx.currentTime+vot/1000);osc.stop(ctx.currentTime+0.22);
    setTimeout(()=>ctx.close(),500);
  }catch(e){}
}
function startMMNS(isPractice){
  MMNS.active=true;MMNS.isPractice=isPractice;MMNS.trial=0;MMNS.maxTrials = taskTrials('MMNS',5,60,isPractice);
  if(isPractice)MMNS.practiceLog=[];else MMNS.log=[];
  mmnsClear();hideAll();$('mmnspeechScreen').style.display='flex';
  $('mmnspeechPracticeBanner').style.display=isPractice?'block':'none';$('mmnsProgressBar').style.width='0%';
  $('mmnsStimPhase').style.display='flex';$('mmnsResultsPhase').style.display='none';
  $('si-task').textContent='MMN-SP'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  $('mmnsCircle').textContent='+';$('mmnsCircle').style.borderColor='#1a2f44';
  Trigger.send(10,'MMNSP_block_start',{task:'MMNSP',practice:isPractice,n_trials:MMNS.maxTrials,p_deviant:MMNS.devProb,classes:{41:'deviant_pa',42:'standard_ba'}});
  mmnsT(mmnsNext,800);
}
function mmnsNext(){
  if(MMNS.trial>=MMNS.maxTrials){mmnsEnd();return;}
  MMNS.trial++;$('mmnsProgressBar').style.width=((MMNS.trial-1)/MMNS.maxTrials*100).toFixed(1)+'%';
  $('mmns-trial').textContent='Trial '+MMNS.trial+'/'+MMNS.maxTrials;
  const isDev=Math.random()<MMNS.devProb;
  (MMNS.isPractice?MMNS.practiceLog:MMNS.log).push({trial:MMNS.trial,isDeviant:isDev});
  const c=$('mmnsCircle');
  if(isDev){c.style.borderColor='#5b9fda';c.style.background='rgba(91,159,218,0.10)';$('mmnsLabel').textContent='/pa/';$('mmns-phase').textContent=tr('DEVIANT');}
  else{c.style.borderColor='rgba(138,180,208,0.3)';c.style.background='#0a1620';$('mmnsLabel').textContent='/ba/';$('mmns-phase').textContent=tr('STANDARD');}
  mmnsPlaySyl(isDev);triggerFlash();
  // Trigger: stim onset — 41 deviant /pa/, 42 standard /ba/
  Trigger.send(isDev?41:42,isDev?'MMNSP_deviant_pa':'MMNSP_standard_ba',{task:'MMNSP',trial:MMNS.trial,syllable:isDev?'/pa/':'/ba/'});
  mmnsT(()=>{c.style.borderColor='#1a2f44';c.style.background='#0a1620';$('mmnsLabel').textContent='';},220);
  mmnsT(mmnsNext,MMNS.isi+Math.random()*200);
}
function mmnsEnd(){
  mmnsClear();MMNS.active=false;$('mmnsStimPhase').style.display='none';$('mmnsProgressBar').style.width='100%';
  Trigger.send(11,'MMNSP_block_end',{task:'MMNSP'});
  const log=MMNS.isPractice?MMNS.practiceLog:MMNS.log;
  if(MMNS.isPractice){hideAll();$('pcStats').innerHTML='TRIALS <span>'+log.length+'</span>';$('practiceComplete').style.display='flex';return;}
  $('exportBtn').disabled=false;
  const stds=log.filter(r=>!r.isDeviant),devs=log.filter(r=>r.isDeviant);
  $('mmnsMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+log.length+'</div><div class="vm-lbl">Total</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+stds.length+'</div><div class="vm-lbl">Standards /ba/</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+devs.length+'</div><div class="vm-lbl">Deviants /pa/</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(log.length?(devs.length/log.length*100).toFixed(1):0)+'%</div><div class="vm-lbl">Deviant Rate</div></div>';
  $('mmnsResultsPhase').style.display='block';
}
function mmnsExportCSV(){
  if(!MMNS.log.length)return;const h='trial,is_deviant,syllable\n';
  const rows=MMNS.log.map(r=>[r.trial,r.isDeviant?1:0,r.isDeviant?'/pa/':'/ba/'].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});const a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='mmn_speech_'+Date.now()+'.csv';a.click();
}

// ── SSVEP ─────────────────────────────────────────
const SSVEP={active:false,isPractice:false,trial:0,maxTrials:0,leftHz:10,rightHz:15,attended:'L',log:[],practiceLog:[],_raf:null,_timer:null,queryInterval:5000,_queryWaiting:false,_queryStart:0};
function ssvepFlicker(t){
  if(!SSVEP.active)return;
  const L=$('ssvepLeft'),R=$('ssvepRight');
  const lOn=Math.floor(t*SSVEP.leftHz/1000)%2===0;
  const rOn=Math.floor(t*SSVEP.rightHz/1000)%2===0;
  L.style.background=lOn?'#d4b456':'#060d14';L.style.borderColor=lOn?'#d4b456':'#1a2f44';
  R.style.background=rOn?'rgba(91,159,218,0.9)':'#060d14';R.style.borderColor=rOn?'#5b9fda':'#1a2f44';
  SSVEP._raf=requestAnimationFrame(ssvepFlicker);
}
function startSSVEP(isPractice){
  SSVEP.active=true;SSVEP.isPractice=isPractice;SSVEP.trial=0;SSVEP.maxTrials = taskTrials('SSVEP',3,8,isPractice);
  if(isPractice)SSVEP.practiceLog=[];else SSVEP.log=[];
  if(SSVEP._raf)cancelAnimationFrame(SSVEP._raf);if(SSVEP._timer)clearTimeout(SSVEP._timer);
  hideAll();$('ssvepScreen').style.display='flex';
  $('ssvepPracticeBanner').style.display=isPractice?'block':'none';$('ssvepProgressBar').style.width='0%';
  $('ssvepStimPhase').style.display='flex';$('ssvepResultsPhase').style.display='none';
  $('ssvepLeftFreq').textContent=SSVEP.leftHz+' Hz';$('ssvepRightFreq').textContent=SSVEP.rightHz+' Hz';
  $('si-task').textContent='SSVEP'+(isPractice?' (PRAC)':'');$('ssvepFeedback').textContent='';
  SSVEP.attended=Math.random()<0.5?'L':'R';
  $('ssvep-phase').textContent=tr('ATTEND ')+(SSVEP.attended==='L'?'LEFT ('+SSVEP.leftHz+'Hz)':'RIGHT ('+SSVEP.rightHz+'Hz)');
  $('ssvep-trial').textContent='Block 0/'+SSVEP.maxTrials;
  SSVEP._raf=requestAnimationFrame(ssvepFlicker);
  SSVEP._timer=setTimeout(ssvepQuery,SSVEP.queryInterval+Math.random()*2000);
}
function ssvepQuery(){
  if(!SSVEP.active)return;
  SSVEP.trial++;$('ssvep-trial').textContent='Block '+SSVEP.trial+'/'+SSVEP.maxTrials;
  $('ssvepProgressBar').style.width=(SSVEP.trial/SSVEP.maxTrials*100)+'%';
  $('ssvep-phase').textContent='QUERY: Which side were you attending?';
  $('ssvepFeedback').textContent='F = LEFT · J = RIGHT';
  SSVEP._queryStart=performance.now();SSVEP._queryWaiting=true;
  SSVEP._timer=setTimeout(()=>{if(SSVEP._queryWaiting)ssvepQResp('TIMEOUT');},3000);
}
function ssvepQResp(resp){
  if(!SSVEP._queryWaiting)return;SSVEP._queryWaiting=false;
  const rt=resp==='TIMEOUT'?null:+(performance.now()-SSVEP._queryStart).toFixed(1);
  const correct=resp===SSVEP.attended;
  (SSVEP.isPractice?SSVEP.practiceLog:SSVEP.log).push({trial:SSVEP.trial,attended:SSVEP.attended,response:resp,correct,rt});
  SSVEP.attended=SSVEP.attended==='L'?'R':'L';
  $('ssvep-phase').textContent=tr('ATTEND ')+(SSVEP.attended==='L'?'LEFT ('+SSVEP.leftHz+'Hz)':'RIGHT ('+SSVEP.rightHz+'Hz)');
  $('ssvepFeedback').textContent=correct?'✓':'✗';
  if(SSVEP.trial>=SSVEP.maxTrials){SSVEP._timer=setTimeout(ssvepEnd,600);}
  else{SSVEP._timer=setTimeout(ssvepQuery,SSVEP.queryInterval+Math.random()*2000);}
}
function ssvepEnd(){
  SSVEP.active=false;if(SSVEP._raf)cancelAnimationFrame(SSVEP._raf);if(SSVEP._timer)clearTimeout(SSVEP._timer);
  $('ssvepLeft').style.background='#060d14';$('ssvepRight').style.background='#060d14';
  $('ssvepStimPhase').style.display='none';$('ssvepProgressBar').style.width='100%';
  const log=SSVEP.isPractice?SSVEP.practiceLog:SSVEP.log;
  if(SSVEP.isPractice){const c=log.filter(r=>r.correct).length;hideAll();$('pcStats').innerHTML='ACC <span>'+(log.filter(r=>r.rt).length?(c/log.filter(r=>r.rt).length*100).toFixed(0):0)+'%</span>';$('practiceComplete').style.display='flex';return;}
  $('exportBtn').disabled=false;
  const valid=log.filter(r=>r.rt),acc=valid.length?(valid.filter(r=>r.correct).length/valid.length*100).toFixed(0):'—';
  $('ssvepMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+SSVEP.leftHz+' Hz</div><div class="vm-lbl">Left Freq</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+SSVEP.rightHz+' Hz</div><div class="vm-lbl">Right Freq</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+log.length+'</div><div class="vm-lbl">Blocks</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+acc+'%</div><div class="vm-lbl">Attention Report Acc</div></div>';
  $('ssvepResultsPhase').style.display='block';
}
function ssvepExportCSV(){
  if(!SSVEP.log.length)return;const h='block,attended,response,correct,rt_ms\n';
  const rows=SSVEP.log.map(r=>[r.trial,r.attended,r.response,r.correct?1:0,r.rt!=null?r.rt:''].join(',')).join('\n');
  const blob=new Blob([h+rows],{type:'text/csv'});const a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='ssvep_'+Date.now()+'.csv';a.click();
}
document.addEventListener('keydown',e=>{
  if(!SSVEP.active||!SSVEP._queryWaiting)return;
  if(e.key==='f'||e.key==='F'){e.preventDefault();ssvepQResp('L');}
  if(e.key==='j'||e.key==='J'){e.preventDefault();ssvepQResp('R');}
});

// ══════════════════════════════════════════════════════════
// NEW PARADIGMS: P50, N100, PVEP, SCP, P3A, ASSR (ERP)
//               CPT, EMOTSTROOP, TASKSWITCH, DUALTASK,
//               ATTBLINK, SUBITIZE, LEXDEC, SEMFLUENCY,
//               PROSMEM, SPATWM (neuropsych)
// ══════════════════════════════════════════════════════════

// ── SENSORY TESTING paradigms (behavioral screening) ───────
Object.assign(PARADIGMS, {
  SNELLEN:{name:'Visual Acuity — Snellen Chart',body:'A calibrated browser-based Snellen acuity screen. The letter size at each line is computed from visual-angle arcminutes, the user-specified viewing distance, and a display PPI calibrated by matching a rectangle to a real credit card (ISO/IEC 7810 ID-1 = 85.60 mm wide). Reports acuity in standard 20/x notation: 20/20 is normal; 20/40 means the participant reads at 20 ft what a person with normal acuity reads at 40 ft. NOT a substitute for clinical refraction — uncalibrated displays and ambient lighting introduce significant error.',rules:[{key:'CALIBRATE',desc:'Drag the rectangle to match a real credit card width (85.60 mm) — establishes screen PPI'},{key:'DISTANCE',desc:'Enter viewing distance in inches (arm length ≈ 24 in); standard Snellen is 20 ft'},{key:'READ',desc:'Read each line top to bottom; type the smallest line you can identify confidently'},{key:'ACUITY',desc:'20/x notation — smallest line correctly read = your screening acuity'}]},
  ISHIHARA:{name:'Color Vision — Ishihara-Style Plates',body:'Algorithmically generated color-vision plates patterned after Ishihara (1917). Numerals are rendered using colors that lie along the protan/deutan (red-green) and tritan (blue-yellow) confusion axes; observers with the corresponding dichromatic deficiency see noise rather than the digit. Eight plates total: six red-green axis, two blue-yellow axis. Screening only — algorithmic plates approximate the original printed test but cannot replace it for clinical or occupational classification.',rules:[{key:'IDENTIFY',desc:'State the numeral you see in each plate; type your answer'},{key:'NO ANSWER',desc:"Use \"Can't see\" if no numeral is identifiable — counted as a miss"},{key:'AXES',desc:'Red-green plates probe protan/deutan; blue-yellow plates probe tritan deficiency'},{key:'INTERPRET',desc:'<50% correct on either axis suggests a possible deficit on that axis'}]},
  SEASHORE:{name:'Seashore Rhythm Test',body:'After Seashore (1919) and Halstead-Reitan. Two rhythmic patterns of 5–8 beats are played in sequence, separated by a brief pause. The participant judges whether the patterns are identical or different (one inter-beat interval perturbed by 80–160 ms). The test probes auditory attention, sustained concentration, and non-verbal rhythm perception — historically associated with right-temporal function. Records accuracy and reaction time across the session. Headphones recommended; this is a screening adaptation, not the standardised 30-item form.',rules:[{key:'LISTEN',desc:'Two rhythms are played one after another with a 500 ms pause between'},{key:'JUDGE',desc:'Press SAME if the rhythms were identical; DIFFERENT if one interval was perturbed'},{key:'S / D',desc:'Keyboard: S = same, D = different'},{key:'METRICS',desc:'Accuracy (% correct) and mean reaction time across trials'}]},
  AUDIOM:{name:'Auditory Threshold — Pure-Tone Screening',body:'A simplified Hughson-Westlake automated audiometric procedure. For each of six frequencies (250 Hz – 8 kHz), the tone level descends in 10 dB steps until the participant does not hear it, then ascends in 5 dB steps. A threshold is recorded when the participant responds on 2 of 3 ascending presentations at the same level. Web Audio routes tones to the selected ear via stereo panner. Critically uncalibrated — browser SPL output depends on headphones, OS volume, and hardware mixer, easily ±30 dB from absolute. Reports relative sensitivity across frequencies, not clinical hearing levels.',rules:[{key:'SETUP',desc:'Use headphones; select ear (right/left); set comfortable volume on the 1000 Hz reference, then keep volume fixed'},{key:'PLAY',desc:'Click Play (or Space) to present a 300 ms tone'},{key:'RESPOND',desc:"Click \"Heard\" (Y) or \"Didn't hear\" (N) — explicit response required for each trial"},{key:'THRESHOLD',desc:'2 of 3 ascending responses at the same level confirm threshold for that frequency'},{key:'PROCEDURE',desc:'Hughson-Westlake-lite: descend 10 dB, ascend 5 dB; six frequencies tested per ear'}]},
  GABOR:{name:'Gabor Patch — Contrast Detection Threshold',body:'A Gabor patch is a sinusoidal grating windowed by a Gaussian envelope — the canonical stimulus for probing V1 contrast sensitivity. Orientation 2AFC: a Gabor tilted slightly left or right of vertical is presented, and the observer reports its tilt direction with F (left) or J (right). A 3-down-1-up adaptive staircase on Michelson contrast converges on the 79.4% correct threshold; contrast steps in log units. The geometric mean of reversal contrasts (skipping the first two) estimates the contrast detection threshold. Sensitive to visual aging, glaucoma, amblyopia, multiple sclerosis, and post-concussive visual dysfunction.',rules:[{key:'F',desc:'Patch tilted LEFT of vertical'},{key:'J',desc:'Patch tilted RIGHT of vertical'},{key:'STAIRCASE',desc:'3 consecutive correct → contrast goes down (harder); 1 wrong → contrast goes up (easier)'},{key:'REVERSALS',desc:'A direction change is a reversal; default 8 reversals end the session'},{key:'THRESHOLD',desc:'Geometric mean of reversals 3+ = estimated contrast threshold (Michelson, 0–1)'}]},
  CDT:{name:'Clock Drawing Test — Visuospatial &amp; Executive Screening',body:'The Clock Drawing Test (CDT) is one of the most widely used cognitive screening instruments in the world, embedded in MoCA, MMSE-2, and the Mini-Cog. The participant draws a clock face from memory, places the numbers 1–12, and sets the hands to a specified time (canonically 11:10 — "ten past eleven" — chosen because both hands must point to different quadrants). Performance probes visuospatial construction, planning, working memory, semantic memory, and hemispatial attention in a single 60-second task. Highly sensitive to early Alzheimer\'s disease, vascular dementia, frontal-executive dysfunction, and left-sided neglect. Browser version captures every stroke as time-stamped (x,y) data plus the final canvas image; the participant types the time they intended to show as a self-check.',rules:[{key:'DRAW',desc:'Use mouse or touch to draw a clock face: a circle, the numbers 1–12, and hands set to ten past eleven (11:10)'},{key:'TIME LIMIT',desc:'Up to 3 minutes — most people finish in under 60 seconds'},{key:'OUTPUT',desc:'Full stroke log (every pen-down through pen-up) plus the final image are saved'},{key:'SCORING',desc:'Automatic timing and stroke metrics; visual scoring (Shulman 6-point or Sunderland 10-point) requires manual review'}]},
  STAR:{name:'Star Cancellation — Hemispatial Neglect Screen',body:'Star Cancellation is the most sensitive subtest of the Behavioural Inattention Test (BIT), the standard battery for assessing unilateral spatial neglect after right-hemisphere stroke. The participant is shown a page covered with 52 small target stars scattered among visual distractors (large stars, letters, and short words) and must find and click every small star. The critical measure is not just total found — it is the spatial distribution of omissions, particularly the ratio of left-side to right-side targets cancelled. Patients with left hemispatial neglect characteristically miss targets on the left half of the page despite intact visual fields, betraying a deficit in spatial attention rather than vision. Also picks up generalized attentional or visuospatial impairment.',rules:[{key:'CLICK',desc:'Click every small star you can find — ignore the large stars, letters, and words'},{key:'TARGETS',desc:'52 small target stars are present in the array'},{key:'TIME',desc:'Up to 3 minutes; most controls finish in 60–90 seconds'},{key:'SCORING',desc:'Total found out of 52, plus the left/right asymmetry index — a strong L<R asymmetry suggests left hemispatial neglect'}]},
});

// ══════════════════════════════════════════════════════════

Object.assign(PARADIGMS, {
  P50:{name:'P50 Sensory Gating',body:'P50 sensory gating measures the brain\'s ability to suppress repeated sensory stimuli. Two clicks are presented 500 ms apart; a healthy brain suppresses the P50 response to the second click (S2/S1 ratio < 0.5). Reduced gating is a well-replicated biomarker in schizophrenia, reflecting failure of pre-attentive sensory filtering.',rules:[{key:'PASSIVE',desc:'No response required — simply listen to the paired clicks'},{key:'S1 / S2',desc:'First click (S1) elicits a full P50; second click (S2) should be suppressed'},{key:'P50',desc:'Positive component ~50 ms post-click over Cz; S2/S1 ratio is the gating index'},{key:'PAIRS',desc:'Click pairs separated by 500 ms; inter-pair interval 8–10 s'}]},
  N100:{name:'Auditory N100 / P200',body:'The auditory N100 (or N1) is a large negative component ~100 ms over fronto-central scalp, elicited by any abrupt auditory stimulus. The following P200 peaks ~200 ms. Together they form the basic auditory evoked potential (AEP) used as a clinical baseline. N100 amplitude reflects auditory cortex responsiveness; N100 latency is prolonged in hearing loss and auditory processing disorders.',rules:[{key:'PASSIVE',desc:'Listen to click trains — no response required'},{key:'N100',desc:'Fronto-central negative peak ~100 ms; reflects auditory cortex onset response'},{key:'P200',desc:'Positive component ~200 ms; reflects secondary auditory processing'},{key:'RATE',desc:'Slow click trains (1/s) for maximal amplitude; faster rates show adaptation'}]},
  LDAEP:{name:"Loudness Dependence of Auditory Evoked Potential (LDAEP)",body:"The LDAEP (Hegerl and Juckel, 1993) measures the slope of N1/P2 amplitude as a function of stimulus intensity. When tones of increasing loudness are presented, the N1-P2 complex grows in amplitude. The steepness of this intensity-amplitude relationship — the LDAEP slope — is thought to reflect serotonergic neuromodulation of auditory cortex: a steep slope (high LDAEP) indicates low serotonergic tone (weak cortical inhibition of sensory input), while a shallow slope indicates high serotonergic activity. LDAEP has been used to predict antidepressant treatment response: patients with high LDAEP (low serotonin) respond better to SSRIs; those with low LDAEP respond better to noradrenergic agents. LDAEP is also elevated in migraine sufferers and is related to sensation seeking and stimulus intensity tolerance.",rules:[{key:"PASSIVE",desc:"You simply listen to tones of different loudness levels — no response required"},{key:"LOUDNESS",desc:"Tones range from very soft to moderately loud — 5 intensity levels"},{key:"SLOPE",desc:"The slope of N1/P2 amplitude against intensity is the primary measure"},{key:"SEROTONIN",desc:"Steep slope = low serotonergic tone; shallow slope = high serotonergic activity"},{key:"PREDICTION",desc:"LDAEP predicts differential response to SSRI vs noradrenergic antidepressants"}]},
  C1:{name:"C1 — First Cortical Visual Response",body:"The C1 is the earliest cortical response to a visual stimulus, peaking approximately 50-90 ms after stimulus onset, and is generated in primary visual cortex (V1/striate cortex). Its most distinctive property is a polarity inversion based on the vertical position of the stimulus in the visual field: stimuli in the upper visual field produce a negative C1 at midline-occipital electrodes (because the striate cortex folds such that upper-field representations project to the lower bank of the calcarine fissure), while lower visual field stimuli produce a positive C1. The C1 is of particular theoretical interest because, unlike all later visual ERPs, it is not modulated by spatial attention — providing strong evidence that attention operates at post-striate stages and that V1 reflects purely feedforward input. C1 is sensitive to stimulus contrast, spatial frequency, and eccentricity.",rules:[{key:"FIXATE",desc:"Keep your eyes on the central fixation cross throughout each trial"},{key:"UPPER / LOWER",desc:"Stimuli will appear in the upper or lower visual field"},{key:"DETECT",desc:"Press SPACE when you see a slightly dimmer target stimulus"},{key:"C1",desc:"C1 ~70ms at Oz polarity inverts with upper vs lower visual field"},{key:"ATTENTION",desc:"C1 is NOT modulated by attention — distinguishes V1 from higher visual areas"}]},
  P100:{name:'P100 Flashed VEP',body:'Brief full-field luminance flashes (~80 ms duration, white on black background) at 1–2 s ISI elicit the P100 — a positive occipital peak ~80–130 ms generated in primary visual cortex (V1). Distinct from pattern-onset PVEP: flash stimuli activate broader retinal regions and produce a more robust but less spatially specific response. Used in basic visual neuroscience for retinal/optic-nerve integrity, and adapted clinically when pattern reversal is impractical (e.g., poor fixation, low acuity). Includes occasional dim catch trials to keep attention engaged.',rules:[{key:'FIXATION',desc:'Fixate the central cross — do not look away from screen'},{key:'PASSIVE',desc:'Most trials require no response — just observe'},{key:'CATCH',desc:'SPACE: press only when you see a DIM flash (10% of trials)'},{key:'P100',desc:'Positive occipital peak ~80–130 ms at O1/Oz/O2'},{key:'V1',desc:'Generated in primary visual cortex; reflects retinal+pathway integrity'}]},
  SCP:{name:'Slow Cortical Potentials',body:'Slow Cortical Potentials (SCPs) are sustained DC voltage shifts over 0.5–10 seconds, reflecting net excitability changes in cortical neuron populations. Negative SCPs accompany cognitive preparation and motor planning; positive SCPs reflect inhibition. SCPs are the primary signal in EEG-based brain-computer interfaces (BCIs) for motor-disabled patients.',rules:[{key:'PASSIVE',desc:'Sustain attention during the cue period — a visual signal guides effort'},{key:'SCN',desc:'Slow cortical negativity during preparation = increased cortical excitability'},{key:'SCP',desc:'Positive shift during inhibition; peak amplitude at Cz'},{key:'BCI',desc:'Voluntary SCP control underlies communication in ALS and locked-in syndrome'}]},
  CDA:{name:"Contralateral Delay Activity (CDA)",body:"The CDA (Vogel and Machizawa, 2004) is a sustained negative slow wave measured contralateral to the side of a memorised visual array, persisting throughout the delay period of a change detection task. It is the most direct ERP index of visual working memory storage — its amplitude increases with the number of items held in memory and saturates at the individual's capacity limit (typically 3-4 items). CDA amplitude is thus an online measure of how many items are currently being actively maintained in VWM. Individual differences in CDA amplitude during the delay period predict behavioural WM capacity, fluid intelligence, and academic achievement. The CDA is reduced by filtering of task-irrelevant distractors, providing a window into attentional filtering efficiency.",rules:[{key:"MEMORISE",desc:"Study the coloured items on one side of the screen"},{key:"DELAY",desc:"Maintain the colours in memory during the blank delay period"},{key:"CHANGE?",desc:"After the delay, report whether any colour changed (F=same / J=changed)"},{key:"CDA",desc:"CDA during the delay is contralateral to the memorised side — tracks WM load"},{key:"CAPACITY",desc:"CDA saturates at your individual WM capacity limit (~3-4 objects)"}]},
  P3A:{name:'Novelty P300 / P3a',body:'The three-stimulus oddball dissociates the P3a from the P3b. Standard tones (70%), target tones (15%), and novel sounds (15%) are presented. The target elicits the classic P3b (parietal, ~350 ms, reflecting context updating). Novel sounds elicit the P3a (frontal, ~280 ms, reflecting involuntary attention capture). The P3a/P3b dissociation is used in studies of TBI, ADHD, and aging.',rules:[{key:'F',desc:'TARGET — the rare target tone (respond only to this)'},{key:'Ignore',desc:'STANDARD — common tone (do not respond)'},{key:'Ignore',desc:'NOVEL — unexpected environmental sounds (do not respond)'},{key:'P3b',desc:'Parietal positive ~350 ms to target — context updating'},{key:'P3a',desc:'Frontal positive ~280 ms to novel sounds — involuntary attention'}]},
  ASSR:{name:'Auditory Steady-State Response (40Hz)',body:'The ASSR is an EEG oscillation phase-locked to a periodic auditory stimulus. A carrier tone amplitude-modulated at 40 Hz drives a steady-state 40 Hz response in auditory cortex and thalamus (the 40Hz ASSR). The 40Hz response indexes gamma-band auditory processing and is reduced in schizophrenia, reflecting thalamo-cortical dysconnectivity. No response is required.',rules:[{key:'PASSIVE',desc:'Listen to the modulated tone — no response required'},{key:'40Hz',desc:'AM tone at 40 Hz drives a spectral peak at exactly 40 Hz in your EEG'},{key:'SCHIZ',desc:'40Hz ASSR power and phase-locking are reduced in schizophrenia'},{key:'HEADPHONES',desc:'Use headphones for accurate 40 Hz modulation delivery'}]},
  CPT:{name:'Continuous Performance Test (CPT-AX)',body:'The CPT-AX is the standard sustained attention/vigilance test. Letters appear one at a time; you must respond only when the letter X follows the letter A (the A-X sequence). Responses to X after any other letter are false alarms; missed A-X targets are omissions. Performance degrades over time in ADHD and TBI, making the inter-block RT and accuracy slope the key measure.',rules:[{key:'SPACE',desc:'Press only when X appears after A (A-X target sequence)'},{key:'Withhold',desc:'Do not respond to X after other letters, or to non-X letters'},{key:'VIGILANCE',desc:'Sustained performance over many trials — fatigue effects are diagnostic'},{key:'CPT',desc:'Hits, omissions, false alarms, d′, and RT over time blocks recorded'}]},
  EMOTSTROOP:{name:'Emotional Stroop',body:'The Emotional Stroop measures attentional bias toward emotionally salient words. Emotional words (fear, anger, sadness) and neutral words are displayed in colored ink; respond to the ink color as fast as possible. RT is slower for emotional words than neutral words — this interference effect reflects automatic allocation of attention to emotional content and is used in anxiety, PTSD, and depression research.',rules:[{key:'F',desc:'Red ink — press F'},{key:'J',desc:'Blue ink — press J'},{key:'INTERFERENCE',desc:'RT slows for emotionally salient words vs neutral words'},{key:'BIAS',desc:'Large interference = strong attentional bias toward emotional content'},{key:'IGNORE',desc:'Ignore the meaning of the word — respond only to its color'}]},
  TASKSWITCH:{name:'Task Switching',body:'Task switching measures cognitive flexibility by requiring alternation between two classification rules. A cue indicates which rule to apply (odd/even for numbers; consonant/vowel for letters). Switch trials — where the rule changes — are slower and less accurate than repeat trials. The switch cost (switch RT − repeat RT) is a pure measure of executive set-shifting, widely used in aging and frontal lobe research.',rules:[{key:'F',desc:'Category A response (odd number / consonant — depends on cue)'},{key:'J',desc:'Category B response (even number / vowel — depends on cue)'},{key:'CUE',desc:'A letter or number appears with a cue (NUMBER or LETTER) indicating the task'},{key:'SWITCH COST',desc:'Switch trial RT − repeat trial RT = cost of changing mental set'},{key:'MIXING COST',desc:'Mixed-block RT − pure-block RT = cost of holding two tasks in mind'}]},
  DUALTASK:{name:'Dual Task',body:'The dual task paradigm measures divided attention and central bottleneck capacity. Two tasks run simultaneously: monitor a letter stream for targets (Task 1) and track a moving dot to one of four zones (Task 2). The dual-task cost — the performance decrement relative to single-task baseline — indexes the capacity of attentional resources and is used in driving safety, aging, and multitasking research.',rules:[{key:'F',desc:'Letter stream target detected (Task 1)'},{key:'J',desc:'Dot entered the marked zone (Task 2)'},{key:'DUAL COST',desc:'Dual-task RT/accuracy minus single-task baseline = attentional capacity'},{key:'PRIORITY',desc:'Both tasks are equally important — do not sacrifice one for the other'},{key:'BOTTLENECK',desc:'Slowing when two responses are required close together reveals the central bottleneck'}]},
  SART:{name:"Sustained Attention to Response Task (SART)",body:"The SART (Robertson et al., 1997) requires responding to every digit (1-9) except 3, which appears on about 11% of trials. Commission errors (responding to 3) index sustained attention lapses and mindwandering. Widely used in TBI, ADHD, and mindfulness research.",rules:[{key:"SPACE",desc:"Press SPACE for every digit EXCEPT 3"},{key:"WITHHOLD",desc:"Do NOT respond when you see 3"},{key:"COMMISSION",desc:"Commission rate (responses to 3) is the primary attention failure measure"},{key:"OMISSION",desc:"Omission rate (missed non-3 digits) indexes overall engagement"},{key:"TRIALS",desc:"225 trials over approximately 3 minutes"}]},
  UFOV:{name:"Useful Field of View (UFOV)",body:"The UFOV (Ball et al., 1988) measures the ability to rapidly identify a central stimulus while simultaneously detecting a peripheral target. Display duration is varied via staircase targeting 75% accuracy. UFOV is the strongest predictor of at-fault crashes in older adults and is sensitive to TBI, stroke, and aging.",rules:[{key:"CENTRE",desc:"Identify whether the central shape is a car or truck"},{key:"PERIPHERY",desc:"Click where you saw the peripheral flash in the display"},{key:"STAIRCASE",desc:"Display duration adapts to find your threshold"},{key:"THRESHOLD",desc:"SOA threshold for 75% accuracy is the primary measure"},{key:"CLICK",desc:"Click the canvas where the peripheral target appeared"}]},
  ATTBLINK:{name:'Attentional Blink',body:'The attentional blink reveals a temporal window of inattention after target detection. A rapid stream of letters (RSVP, 10/sec) contains two targets (T1 and T2) in colored ink. T2 is frequently missed when it appears 200–500 ms after T1 — the "blink" window — even though it is fully visible. The blink reflects depletion of attentional resources following T1 consolidation.',rules:[{key:'SPACE',desc:'Press SPACE each time you see a colored letter (target T1 or T2)'},{key:'STREAM',desc:'Letters appear at 10 per second — fixate the centre'},{key:'BLINK',desc:'T2 is missed ~50% of the time when 200–500 ms after T1'},{key:'LAG',desc:'Lag 1 (T2 immediately after T1) is often spared — the lag-1 sparing effect'},{key:'RSVP',desc:'Rapid Serial Visual Presentation — do not move your eyes'}]},
  SUBITIZE:{name:'Subitizing',body:'Subitizing is the rapid, accurate enumeration of small quantities (1–4) without counting. Arrays of 1–8 dots appear briefly; respond how many you see. For 1–4 dots, RT is flat and fast (subitizing range). For 5+ dots, RT rises steeply (counting range). The subitizing slope and counting slope are distinct measures of quantity processing, used in dyscalculia, autism, and aging research.',rules:[{key:'1–9 keys',desc:'Press the number key for how many dots you count'},{key:'SPEED',desc:'Respond as fast and accurately as possible'},{key:'SUBITIZING',desc:'Flat RT slope 1–4 items reflects rapid parallel enumeration'},{key:'COUNTING',desc:'Steep RT slope 5+ items reflects serial counting'},{key:'CUTOFF',desc:'The subitizing limit is typically 3–4 items in adults'}]},
  LEXDEC:{name:'Lexical Decision',body:'Lexical decision measures access to the mental lexicon. Letter strings appear one at a time; decide whether each is a real English word or a non-word (pronounceable but meaningless, e.g. FLURP). RT is faster for high-frequency words, concrete/imageable words, and words with many orthographic neighbors. Non-word RT reflects phonological assembly. Widely used in language processing and dyslexia research.',rules:[{key:'F',desc:'WORD — the string is a real English word'},{key:'J',desc:'NON-WORD — the string is not a real word'},{key:'FREQUENCY',desc:'High-frequency words (THE, RUN) are faster than low-frequency words (SERAPH)'},{key:'IMAGEABILITY',desc:'Concrete words (DOG) are faster than abstract words (JUSTICE)'},{key:'SPEED',desc:'Respond as fast as possible — do not guess if uncertain'}]},
  SEMFLUENCY:{name:'Semantic Fluency',body:'Semantic fluency measures the ability to retrieve words from a semantic category within a time limit. Name as many animals (or foods, or tools) as you can in 60 seconds. Total output reflects lexical access efficiency. Clustering (naming related animals together) reflects semantic network structure; switching between clusters reflects executive control. Fluency is reduced in Alzheimer\'s disease and temporal lobe damage.',rules:[{key:'TYPE',desc:'Type each word and press ENTER — name as many as possible in 60 seconds'},{key:'CATEGORY',desc:'Animals in one block, food items in another, tools in a third'},{key:'TOTAL',desc:'Total valid unique responses is the primary score'},{key:'CLUSTER',desc:'Clusters of related items (farm animals, jungle animals) reflect semantic organization'},{key:'AVOID',desc:'Proper nouns and repetitions are not counted'}]},
  PROSMEM:{name:'Prospective Memory',body:'Prospective memory is memory for intentions — remembering to do something at a future moment. An ongoing task (letter classification) is performed while you must also remember to press a special key whenever a designated target word appears. The dual-task cost and PM hit rate measure prospective memory capacity, which is frequently impaired in TBI, aging, and schizophrenia.',rules:[{key:'F / J',desc:'Ongoing task: classify each letter as vowel (F) or consonant (J)'},{key:'SPACE',desc:'Prospective memory response: press SPACE when you see the PM target word'},{key:'PM HIT',desc:'Correctly pressing SPACE to the target = prospective memory success'},{key:'ONGOING',desc:'Do not neglect the letter task — both tasks matter equally'},{key:'TARGET',desc:'The PM target word appears infrequently and without warning'}]},
  SPATWM:{name:'Spatial Working Memory',body:'Spatial working memory tests the ability to hold and manipulate visuospatial information. A sequence of boxes is highlighted one by one; after a brief delay, reproduce the sequence by clicking the boxes in order. Span (the longest sequence correctly reproduced) is the measure. The task is the computerized analog of Corsi block-tapping and is distinct from verbal working memory (digit span).',rules:[{key:'CLICK',desc:'After the sequence is shown, click the boxes in the same order'},{key:'SPAN',desc:'Sequence length increases until errors occur; maximum correct span is the score'},{key:'SPATIAL',desc:'Spatial WM is distinct from verbal WM — does not rely on phonological rehearsal'},{key:'DELAY',desc:'A brief retention interval separates the presentation and recall phases'},{key:'CORSI',desc:'Computerized analog of the Corsi block-tapping task'}]}
,
  MOCA:{name:"Montreal Cognitive Assessment (MoCA)",body:"The MoCA is the most widely used brief cognitive screening instrument, developed by Nasreddine et al. (2005). It assesses ten cognitive domains in approximately 10 minutes: visuospatial/executive (trail-making, cube copy, clock drawing), naming (3 animals), memory (5-word learning, delayed recall), attention (digit span, serial 7s, letter A vigilance), language (sentence repetition, verbal fluency), abstraction (similarity), and orientation. Maximum score is 30 points; a score below 26 is considered a positive screen for mild cognitive impairment.",rules:[{key:"DOMAINS",desc:"10 domains tested: visuospatial, naming, memory, attention, language, abstraction, orientation"},{key:"SCORE",desc:"Total /30 — a score of 26 or higher is considered normal; <26 = positive screen"},{key:"TIME",desc:"Approximately 10 minutes to administer"},{key:"CLINICAL",desc:"Validated in MCI, Alzheimer disease, Parkinson disease, stroke, TBI, and normal aging"},{key:"EDUCATION",desc:"+1 point added if 12 years or fewer of formal education — adjusted maximum 30/30"}]},
  PHQ9:{name:"Patient Health Questionnaire-9 (PHQ-9)",body:"The PHQ-9 (Kroenke et al., 2001) is the most widely validated brief depression screen. Nine items map onto DSM-5 major depressive episode criteria; rated 0-3 over the past two weeks. Total score: 0-4 minimal, 5-9 mild, 10-14 moderate, 15-19 moderately severe, 20-27 severe depression. Score >=10 has sensitivity 88% and specificity 88% for major depression. Public domain.",rules:[{key:"PAST 2 WEEKS",desc:"Rate how often each problem has bothered you over the past two weeks"},{key:"0 to 3",desc:"0=Not at all / 1=Several days / 2=More than half the days / 3=Nearly every day"},{key:"CUT-OFF",desc:"Total >=10 = positive screen for moderate-to-severe depression"},{key:"ITEM 9",desc:"Item 9 (self-harm ideation) requires clinical follow-up at any score >0"},{key:"MONITOR",desc:"Repeat administration tracks treatment response - 5-point change is meaningful"}]},
  GAD7:{name:"Generalized Anxiety Disorder Scale-7 (GAD-7)",body:"The GAD-7 (Spitzer et al., 2006) screens for generalised anxiety disorder and anxiety severity. Seven items rated 0-3 over the past two weeks. Score 0-4 minimal, 5-9 mild, 10-14 moderate, 15-21 severe anxiety. Score >=10 has sensitivity 89% and specificity 82% for GAD; also screens effectively for panic disorder, social anxiety, and PTSD. Public domain.",rules:[{key:"PAST 2 WEEKS",desc:"Rate how often each problem has bothered you over the past two weeks"},{key:"0 to 3",desc:"0=Not at all / 1=Several days / 2=More than half the days / 3=Nearly every day"},{key:"CUT-OFF",desc:"Total >=10 = positive screen for moderate-to-severe anxiety"},{key:"BROAD",desc:"Screens for GAD, panic disorder, social anxiety, and PTSD"},{key:"MONITOR",desc:"Repeat administration tracks anxiety treatment response"}]},
  PCL5:{name:"PTSD Checklist for DSM-5 (PCL-5)",body:"The PCL-5 (Weathers et al., 2013) measures DSM-5 PTSD symptom severity. Twenty items cover intrusion (5), avoidance (2), negative cognition/mood (7), and arousal/reactivity (6). Each rated 0-4 over the past month. Cut-score >=33 is commonly used for screen-positive. DSM-5 provisional diagnosis possible from cluster scoring. Public domain.",rules:[{key:"PAST MONTH",desc:"Rate how much each problem has bothered you in the past month"},{key:"0 to 4",desc:"0=Not at all / 1=A little bit / 2=Moderately / 3=Quite a bit / 4=Extremely"},{key:"CUT-OFF",desc:"Total >=33 = probable PTSD (screen positive)"},{key:"CLUSTERS",desc:"Four clusters: intrusion / avoidance / cognition-mood / arousal"},{key:"DIAGNOSIS",desc:"Cluster scoring provides a provisional DSM-5 symptom-based diagnosis"}]},
  AUDIT:{name:"Alcohol Use Disorders Identification Test (AUDIT)",body:"The AUDIT (Saunders et al., 1993) was developed by the WHO to screen for hazardous and harmful alcohol use. Ten questions cover consumption (3 items), drinking behaviour (3 items), and alcohol-related harm (4 items). Scores 0-40. Cut-offs: 8-15 hazardous; 16-19 harmful; >=20 probable dependence. Public domain.",rules:[{key:"PAST YEAR",desc:"Questions 1-8 refer to the past year; items 9-10 to lifetime experience"},{key:"SCORING",desc:"Each item 0-4; total 0-40"},{key:"CUT-OFFS",desc:">=8 hazardous / >=16 harmful / >=20 probable dependence"},{key:"AUDIT-C",desc:"Items 1-3 alone form the AUDIT-C rapid screen"},{key:"WHO",desc:"Validated across 6 countries - most widely used alcohol screen globally"}]},
  ASRS:{name:"Adult ADHD Self-Report Scale (ASRS-v1.1)",body:"The ASRS-v1.1 (Kessler et al., 2005) screens for adult ADHD. It contains 18 questions corresponding to DSM-IV ADHD criteria, rated 0-4 over the past 6 months. Part A (questions 1-6) is the validated brief screen; >=4 of 6 items scoring in the shaded range constitutes a positive screen (sensitivity 68.7%, specificity 99.5%). Public domain.",rules:[{key:"PAST 6 MONTHS",desc:"Rate how often each situation has occurred in the past 6 months"},{key:"PART A",desc:"Questions 1-6 form the validated screening scale"},{key:"CUT-OFF",desc:">=4 of 6 Part A items in the shaded range = positive ADHD screen"},{key:"BOTH TYPES",desc:"Items cover both inattentive and hyperactive-impulsive symptom domains"},{key:"ADULT",desc:"Norms are for adults - childhood ADHD rating scales differ significantly"}]},
  HACHINSKI:{name:"Hachinski Ischemic Score (HIS)",body:"The Hachinski Ischemic Score (Hachinski, Iliff, Zilhka et al., 1975, Arch Neurol 32:632–637) is a 13-item clinician-administered checklist that differentiates multi-infarct (vascular) dementia from Alzheimer's-type primary degenerative dementia. Each item is rated present (1 or 2 points, depending on item weight) or absent (0). Total ranges 0–18. Original validation: ≤4 → primary degenerative (Alzheimer-type); 5–6 → mixed/indeterminate; ≥7 → multi-infarct/vascular dementia. Has been widely used since 1975 in clinical and research dementia work-ups. Modest sensitivity (~70–80%) and specificity (~70%) for vascular dementia; intended as one component of a fuller neurological evaluation, not a stand-alone diagnostic tool.",rules:[{key:"CLINICIAN-RATED",desc:"Completed by clinician based on history from patient and informant; not a self-report"},{key:"13 ITEMS",desc:"Each item scored as present (1 or 2 pts depending on weight) or absent (0)"},{key:"WEIGHTS",desc:"2 pts: abrupt onset, fluctuating course, history of strokes, focal symptoms, focal signs. 1 pt: all others"},{key:"CUT-OFFS",desc:"≤4 = primary degenerative (Alzheimer-type); 5–6 = mixed; ≥7 = multi-infarct dementia"},{key:"ADJUNCT",desc:"Use alongside neuroimaging, cognitive assessment, and clinical examination — not as sole criterion"}]},
  KATZ:{name:"Katz Index of Independence in ADLs",body:"The Katz Index (Katz, Ford, Moskowitz, Jackson & Jaffe, 1963, JAMA 185:914–919) is the most widely used measure of basic activities of daily living. Six items — bathing, dressing, toileting, transferring, continence, and feeding — each scored 1 (independent) or 0 (dependent). Total 0–6. The Katz captures fundamental self-care abilities that decline late in dementia and disability progression; for earlier/milder functional decline, pair it with the Lawton IADL scale. Public domain.",rules:[{key:"CLINICIAN/INFORMANT",desc:"Rated by clinician based on observation, history, or informant report"},{key:"6 ITEMS",desc:"Bathing · Dressing · Toileting · Transferring · Continence · Feeding"},{key:"BINARY",desc:"Each activity scored 1 (independent) or 0 (dependent / requires help)"},{key:"INTERPRETATION",desc:"6 = full function · 4 = moderate impairment · ≤2 = severe functional impairment"},{key:"PAIR WITH",desc:"Often given with Lawton IADL — Katz catches late/severe decline, Lawton catches early/mild"}]},
  LAWTON:{name:"Lawton Instrumental ADL Scale (IADL)",body:"The Lawton IADL Scale (Lawton & Brody, 1969, Gerontologist 9:179–186) measures higher-order instrumental activities required for independent community living. Eight items — telephone use, shopping, food preparation, housekeeping, laundry, transportation, medication management, and finances — are each scored 0 or 1. Modern unisex scoring yields a total of 0–8 (lower = more impaired). The original 1969 paper used gender-stratified scoring (women answered all 8 items, men only 5); the unisex 0–8 version implemented here is now the clinical standard. IADL decline typically precedes basic ADL decline by years in dementia and is a key indicator of MCI progression. Public domain.",rules:[{key:"CLINICIAN/INFORMANT",desc:"Rated by clinician based on observation or informant report; not self-administered"},{key:"8 ITEMS",desc:"Telephone · Shopping · Food prep · Housekeeping · Laundry · Transportation · Medication · Finances"},{key:"0 to 8",desc:"Each item scored 0 (cannot do / dependent) or 1 (independent). Higher = better function."},{key:"EARLY MARKER",desc:"IADL decline typically precedes basic ADL decline — sensitive to MCI and early dementia"},{key:"PAIR WITH",desc:"Often given with Katz ADL — together cover full functional spectrum"}]},
  DIGCAN:{name:"Digit Cancellation",body:"Digit Cancellation is a paper-and-pencil neuropsychological test digitised here. A grid of random digits (0–9) is displayed; the participant must tap or click every occurrence of the target digits 3 and 7 as quickly and accurately as possible within a time limit. The task measures sustained attention, processing speed, and psychomotor vigilance. It is sensitive to frontal lobe dysfunction, TBI, and age-related cognitive slowing.",rules:[{key:"CLICK",desc:"Click every 3 and every 7 in the grid as fast as possible"},{key:"TARGET",desc:"The targets are 3 and 7, shown at the top — ignore all other digits"},{key:"SPEED",desc:"Work left-to-right, top-to-bottom — speed and accuracy both matter"},{key:"TIME",desc:"60-second time limit — total hits, omissions, false alarms, and d′ recorded"}]},
  SYMSEARCH:{name:"Symbol Search (WAIS-IV)",body:"Symbol Search is a core WAIS-IV processing speed subtest. Each item presents two target symbols on the left and a search array of five symbols on the right. The participant decides YES (either target appears in the array) or NO (neither does) as fast as possible. The number correct in 120 seconds is the raw score. It measures visual scanning speed, attention, and psychomotor processing speed. Together with Digit Symbol Coding it forms the Processing Speed Index (PSI).",rules:[{key:"F — YES",desc:"One or both target symbols appear somewhere in the search array"},{key:"J — NO",desc:"Neither target symbol appears in the search array"},{key:"SPEED",desc:"Work as fast as possible — both speed and accuracy are scored"},{key:"TIME",desc:"120-second time limit — number correct is the primary score"},{key:"PSI",desc:"Combined with Digit Symbol Coding to form the WAIS-IV Processing Speed Index"}]},
  PHONFLUE:{name:"Phonemic Fluency (FAS)",body:"Phonemic fluency (Controlled Oral Word Association Test — COWAT) measures the ability to generate words beginning with a specified letter within 60 seconds. Three letters are tested in sequence: F, A, and S. Unlike semantic fluency (naming animals), phonemic fluency requires active frontal-executive search strategies rather than semantic network retrieval. Total FAS score (sum across three letters) is the primary measure, with norms stratified by age and education. Phonemic fluency is sensitive to frontal lobe lesions, TBI, schizophrenia, and early Alzheimer disease.",rules:[{key:"TYPE + ENTER",desc:"Type each word and press Enter — name as many words starting with the letter as possible"},{key:"60 SECONDS",desc:"One 60-second trial per letter — F, then A, then S"},{key:"RULES",desc:"No proper nouns (Paris), no numbers, no same root words (farm, farmer, farms)"},{key:"SCORE",desc:"Total valid unique words across all three letters — compare to age/education norms"},{key:"FRONTAL",desc:"Reduced FAS score is a sensitive marker of frontal lobe dysfunction"}]},
  JLO:{name:"Judgment of Line Orientation (JLO)",body:"The Benton Judgment of Line Orientation test measures visuospatial perception and the ability to match line orientations. On each trial, two angled line segments are displayed; the participant must identify which two lines in a reference fan of 11 radially arranged lines (spanning 180°, spaced 18° apart) match the presented pair. The JLO is sensitive to right posterior parietal cortex damage and is impaired in hemispatial neglect, Alzheimer disease, and Parkinson disease. The standard form has 30 items; each is scored correct (1) or incorrect (0).",rules:[{key:"CLICK",desc:"Click the two numbered lines in the reference fan that match the displayed angles"},{key:"FAN",desc:"11 reference lines numbered 1–11, spanning 180° in 18° steps"},{key:"BOTH",desc:"Both lines must be correctly identified for the item to be scored correct"},{key:"SCORE",desc:"Total correct / 30 — right hemisphere lesions show greater impairment"},{key:"NORMS",desc:"Age-corrected norms: scores below 20–22 suggest visuospatial impairment"}]},
  PASAT:{name:"Paced Auditory Serial Addition Test (PASAT)",body:"The PASAT was developed by Gronwall (1977) to assess information processing speed and capacity. Single digits (1–9) are presented one at a time at a fixed inter-stimulus interval (standard: 3 s, fast: 2 s, very fast: 1.6 s). The participant must add each new digit to the one immediately preceding it — not to a running total — and respond before the next digit appears. The total number of correct additions out of 60 stimuli (61 digits) is the primary score. The PASAT is highly sensitive to diffuse axonal injury in TBI and to white matter pathology in multiple sclerosis, and is part of the MS Functional Composite (MSFC).",rules:[{key:"RULE",desc:"Add the current digit to the one just before it — not a running total"},{key:"EXAMPLE",desc:"3 … 7 → say 10; then 4 → say 11 (7+4); then 2 → say 6 (4+2)"},{key:"PACE",desc:"Respond before the next digit appears — the pace is fixed and unforgiving"},{key:"TYPE / ENTER",desc:"Type your sum and press Enter — or just press Enter to skip"},{key:"PACE LEVELS",desc:"Practice: 3 s · Standard: 3 s · Fast: 2 s · Very fast: 1.6 s"}]},
  RAVLT:{name:"Rey Auditory Verbal Learning Test (RAVLT)",body:"The RAVLT (Rey, 1941; Taylor, 1959) assesses verbal learning and memory. List A (15 words) is shown five consecutive times (Trials I–V); after each presentation the participant decides, for each of a set of words, whether it was on the list — a recognition format (press F for OLD, J for NEW) that needs no typing. An interference list (List B) is then presented once and tested the same way. List A is tested again immediately (Trial VI) and once more after a 20-minute delay (Trial VII). Key measures include the learning curve (I→V hits), total learning (sum of I–V), proactive interference (VI vs V), retention (VII vs V), and false alarms. Sensitive to hippocampal damage, Alzheimer disease, and TBI.",rules:[{key:"STUDY",desc:"Watch each word list — words appear one per second"},{key:"F = OLD",desc:"After each list, press F if a shown word WAS on the list"},{key:"J = NEW",desc:"Press J if the word was NOT on the list"},{key:"LIST B",desc:"An interference list is inserted after Trial V, then List A is tested again"},{key:"DELAY",desc:"A 20-minute delay precedes the final recognition test"}]},
  CVLT:{name:"California Verbal Learning Test (CVLT)",body:"The CVLT (Delis et al., 1987) presents a 16-item Monday shopping list drawn from four semantic categories (fruits, tools, clothing, spices — 4 items each). The list is shown on screen five times; after each presentation the participant judges, for each of a set of words, whether it was on the list — a recognition format (press F for OLD, J for NEW) that needs no typing. An interference list (Tuesday list) is then shown and tested the same way, followed by short-delay and (after a 20-minute delay) long-delay recognition, and a final yes/no recognition trial. Key scores include total trials 1–5 hits, learning slope, semantic clustering, retention, false alarms, and discriminability (d′). The CVLT is the most widely used verbal learning test in North American neuropsychology.",rules:[{key:"STUDY",desc:"Watch the shopping list on screen — words come from four categories"},{key:"F = OLD",desc:"After each list, press F if a shown word WAS on the list"},{key:"J = NEW",desc:"Press J if the word was NOT on the list"},{key:"LIST B",desc:"An interference (Tuesday) list is inserted after Trial 5"},{key:"DELAY",desc:"A 20-minute delay precedes the final recognition tests"}]},
  PAL:{name:"Paired Associate Learning (PAL)",body:"PAL tests associative binding - forming and retrieving arbitrary word pairs, a hallmark of hippocampal function. Word pairs are studied; at test, the first word cues recall of the second. PAL is sensitive to early Alzheimer disease and medial temporal lobe lesions. Three learning trials are given.",rules:[{key:"STUDY",desc:"Study each word pair - you will be cued with the first word"},{key:"RECALL",desc:"Type the word that was paired with the cue word"},{key:"TRIALS",desc:"Three study-test cycles - re-study missed pairs each round"},{key:"SCORE",desc:"Total correct and errors to criterion are the primary measures"},{key:"HIPPOCAMPUS",desc:"Associative binding is specifically impaired by hippocampal damage"}]},
  SRCMEM:{name:"Source Memory",body:"Source memory is memory for the context of learning - not just what, but where or when. Words are studied appearing on the left or right side; at test, item recognition is followed by source attribution. Source memory is disproportionately impaired in frontal lesions even when item recognition is intact, reflecting prefrontal role in contextual encoding.",rules:[{key:"STUDY",desc:"Each word appears LEFT or RIGHT - note both the word and its side"},{key:"ITEM",desc:"At test: F=OLD (seen before) / J=NEW (not seen)"},{key:"SOURCE",desc:"For recognised words: F=LEFT / J=RIGHT"},{key:"RECOLLECTION",desc:"Correct source attribution requires recollection - familiarity alone is insufficient"},{key:"SCORE",desc:"Item d-prime (recognition) and source accuracy conditional on hits are reported"}]},
  IGT:{name:"Iowa Gambling Task (IGT)",body:"The Iowa Gambling Task (Bechara et al., 1994) was designed to model real-world decision-making under uncertainty. Four card decks are presented: Decks A and B are disadvantageous (high immediate reward, very high occasional penalty, net loss over time); Decks C and D are advantageous (lower immediate reward, smaller penalties, net gain over time). Healthy participants shift from A/B to C/D after about 40 trials, guided by somatic signals before they can verbalize the rule. Patients with ventromedial prefrontal cortex lesions continue choosing from A/B despite mounting losses. The task is also impaired in substance use disorders, pathological gambling, and psychopathy. The IGT advantage score (C+D minus A+B) is the primary measure, computed in five blocks of 20 trials.",rules:[{key:"CLICK",desc:"Click any deck to draw a card — you win money on every draw"},{key:"PENALTY",desc:"Some draws also carry a penalty — decks A and B have catastrophic occasional losses"},{key:"GOAL",desc:"Maximize your earnings over 100 draws — discover which decks are advantageous"},{key:"ADVANTAGE",desc:"IGT score = (C+D) − (A+B) per block; positive = advantageous shift"},{key:"SOMATIC",desc:"Attend to your gut feeling — advantageous learners sense the good decks before knowing why"}]},
  TOL:{name:"Tower of London (TOL)",body:"The Tower of London (Shallice, 1982) is a planning task derived from the Tower of Hanoi. Three pegs of different heights hold coloured discs; the participant must rearrange them to match a goal configuration in the minimum possible number of moves. Only one disc may be moved at a time, and each peg has a capacity limit. The key measure is the number of problems solved in minimum moves — excess moves reflect planning failures. The TOL is sensitive to dorsolateral and orbital prefrontal cortex dysfunction, and is impaired in ADHD, schizophrenia, and frontal lobe lesions.",rules:[{key:"CLICK",desc:"Click a disc to select it (gold highlight), then click the destination peg"},{key:"ONE AT A TIME",desc:"Only the top disc on each peg can be moved"},{key:"PEG LIMITS",desc:"Pegs hold 3, 2, and 1 disc respectively"},{key:"MINIMUM MOVES",desc:"Plan ahead — solve each problem in as few moves as possible"},{key:"SCORE",desc:"Problems solved in minimum moves / total problems × 100"}]},
  MATRIX:{name:"Matrix Reasoning",body:"Matrix Reasoning measures fluid intelligence - solving novel pattern completion problems without prior knowledge. Each item presents a 3x3 matrix with one cell missing; the participant selects the missing piece from six options. Patterns involve size progressions, shape changes, fill transformations, and quantity rules. Sensitive to global cognitive decline and right hemisphere damage.",rules:[{key:"CLICK",desc:"Click the option that correctly completes the matrix"},{key:"PATTERNS",desc:"Look for progressions across rows and columns - size, shape, fill, or count"},{key:"NO TIME LIMIT",desc:"Take as long as you need - accuracy not speed is measured"},{key:"FLUID IQ",desc:"Measures reasoning ability independent of vocabulary and education"},{key:"SCORE",desc:"Total correct out of 18 items with increasing difficulty"}]},
  META:{name:"Metacognition (Confidence Calibration)",body:"Metacognition is measured by asking participants to rate their confidence in each decision. The relationship between confidence and accuracy yields type 2 signal detection measures: type 2 d-prime (metacognitive sensitivity) quantifies how well confidence tracks accuracy; the M-ratio normalises metacognitive efficiency by task difficulty. Metacognitive ability is impaired in schizophrenia, anosognosia, and depression.",rules:[{key:"TASK",desc:"First perform the memory recognition task: F=OLD / J=NEW"},{key:"CONFIDENCE",desc:"After each decision, rate your confidence: 1=guess through 4=certain"},{key:"HONEST",desc:"Rate how confident you actually are - not how you wish you had performed"},{key:"TYPE 2",desc:"Type 2 d-prime measures how well your confidence predicts your accuracy"},{key:"M-RATIO",desc:"M-ratio = type 2 d-prime / type 1 d-prime - metacognitive efficiency"}]},
  RMET:{name:"Reading the Mind in the Eyes (RMET)",body:"The Reading the Mind in the Eyes Test (Baron-Cohen et al., 2001) measures the ability to infer complex mental states from photographs of the eye region alone. Each trial presents a black-and-white photograph of a person's eyes and four emotion/mental-state words; the participant selects the word that best describes what the person is thinking or feeling. The test contains 36 items and takes approximately 10–15 minutes. It is the most widely used measure of cognitive Theory of Mind (ToM) and mentalising ability. Performance is reduced in autism spectrum disorder, alexithymia, and frontal lobe damage, and varies with sex, age, and systemising tendency. Because the test uses real photographs, this browser implementation uses procedurally rendered eye illustrations with validated emotion sets.",rules:[{key:"CLICK",desc:"Click the word that best describes what the person is thinking or feeling"},{key:"EYES ONLY",desc:"Judge from the eye region alone — ignore any imagined face or body"},{key:"FIRST IMPRESSION",desc:"Trust your first instinct — do not over-analyse"},{key:"NO TIME LIMIT",desc:"Take as long as you need — accuracy not speed is the primary measure"},{key:"SCORE",desc:"Total correct / 36 — below 22 suggests ToM impairment; mean ~26 in healthy adults"}]},
  FER:{name:"Facial Emotion Recognition (FER)",body:"FER tests identification of basic emotional expressions from whole-face illustrations. Unlike RMET which measures complex mental state inference, FER taps basic affective perception mediated by the amygdala and fusiform face area. The six basic emotions (Ekman and Friesen, 1976) are happiness, sadness, anger, fear, disgust, and surprise. FER is impaired in amygdala lesions, depression, schizophrenia, and ASD.",rules:[{key:"CLICK",desc:"Click the emotion label that best describes the facial expression"},{key:"SIX",desc:"Happy / Sad / Angry / Fearful / Disgusted / Surprised"},{key:"WHOLE FACE",desc:"Judge the whole face - unlike RMET which uses only the eye region"},{key:"AMYGDALA",desc:"Fear recognition is most sensitive to amygdala lesions"},{key:"SCORE",desc:"Percent correct overall and per emotion"}]},
  ABR:{name:"Auditory Brainstem Response (ABR)",body:"The ABR is a series of far-field electrical potentials recorded from scalp electrodes in response to brief click stimuli. Five waves (I–V) emerge within the first 10 milliseconds, each reflecting successive synaptic relays along the ascending auditory brainstem pathway: wave I = auditory nerve, wave II = cochlear nucleus, wave III = superior olive, wave IV = lateral lemniscus, wave V = inferior colliculus. Wave V latency (~5.7 ms at 70 dB nHL) is the most robust clinical measure, used to estimate hearing threshold, detect retrocochlear pathology, and screen newborns for hearing loss. The ABR is fully passive — no response or attention is required.",rules:[{key:"PASSIVE",desc:"No response required — simply relax and minimise movement"},{key:"WAVE V",desc:"The most prominent wave; latency ~5.7 ms at 70 dB nHL; prolonged in auditory neuropathy and MS"},{key:"I–V IPL",desc:"Wave I to V interpeak latency ~4.0 ms; prolonged in brainstem lesions"},{key:"HEADPHONES",desc:"Use insert earphones or headphones for accurate stimulus delivery"},{key:"THRESHOLD",desc:"ABR threshold estimated by reducing click intensity until wave V disappears (~10–20 dB nHL)"}]},
  N1P2:{name:"N1-P2 Auditory Evoked Potential",body:"The N1 (or N100) is a negative deflection peaking at approximately 100 ms at vertex (Cz) electrodes in response to the onset of any auditory stimulus. It is followed by the P2 (or P200), a positive deflection peaking at approximately 200 ms. Together, the N1-P2 complex is the most robust and replicable cortical auditory evoked potential and is generated primarily in auditory cortex (Heschl's gyrus) with contributions from association areas. N1 amplitude is modulated by attention (enhanced when attending to sounds), habituates with stimulus repetition (the basis of the MMN paradigm), and is reduced in schizophrenia, sleep deprivation, and disorders of consciousness. P2 amplitude is sensitive to perceptual learning and is increased by musical training. The N1-P2 complex is foundational to understanding all other auditory ERPs.",rules:[{key:"ATTEND",desc:"Count the number of target tones (higher pitch) in the sequence"},{key:"PASSIVE",desc:"In practice mode you can simply listen — no response required"},{key:"N1",desc:"N1 peaks at ~100ms at Cz — reflects auditory cortex activation to tone onset"},{key:"P2",desc:"P2 peaks at ~200ms — sensitive to perceptual learning and attention"},{key:"HABITUATION",desc:"N1 decreases with repeated identical stimuli — the basis of change detection paradigms"}]},
  RON:{name:"Reorienting Negativity (RON)",body:"The Reorienting Negativity (Schroger and Wolff, 1998) is a fronto-central negative deflection peaking approximately 400-600 ms after an unexpected deviant sound in an attended auditory stream. While the MMN reflects automatic detection of a deviant, the RON is thought to reflect the reorientation of attention back to the primary task after attention has been captured and momentarily redirected by the deviant. The RON is thus part of an attentional distraction sequence: deviant stimulus elicits MMN (change detection, ~150 ms) followed by P3a (involuntary attention capture, ~300 ms) followed by RON (reorienting to task, ~400-600 ms). RON amplitude is reduced when distractors are less disruptive and when reorientation is rapid. It is sensitive to working memory load and task demands.",rules:[{key:"PRIMARY TASK",desc:"Count target tones (higher pitch) in the standard stream"},{key:"DISTRACTORS",desc:"Novel sounds (chords, environmental sounds) will occasionally interrupt"},{key:"REFOCUS",desc:"After a distractor, refocus on the counting task as quickly as possible"},{key:"RON",desc:"RON reflects the neural cost of reorienting attention back to the primary task"},{key:"SEQUENCE",desc:"Distraction sequence: MMN (detection) -> P3a (capture) -> RON (reorientation)"}]},
  P1N1:{name:"P1/N1 Spatial Attention",body:"The P1/N1 spatial attention paradigm (Hillyard et al., 1973) is the foundational ERP demonstration of selective attention. Stimuli (brief flashes) are presented alternately or randomly to the left and right visual fields. A central arrow cue directs covert attention to one side. The P1 component (~100 ms, occipital-parietal contralateral to stimulus) is enhanced for attended versus unattended stimuli, reflecting early sensory gain. The N1 (~160 ms) is also enhanced for attended stimuli, reflecting discrimination processing. Crucially, attention modulates processing as early as 80 ms post-stimulus — before conscious awareness. The paradigm established that attention acts as a sensory gate, not merely a late decision-stage filter.",rules:[{key:"F — LEFT",desc:"Attend LEFT — press F when you detect a target (brighter) flash on the left"},{key:"J — RIGHT",desc:"Attend RIGHT — press J when you detect a target (brighter) flash on the right"},{key:"CUE",desc:"A central arrow cue indicates which side to attend — follow it throughout the block"},{key:"FIXATE",desc:"Keep your eyes on the central fixation cross — do not move your eyes to either side"},{key:"P1",desc:"P1 amplitude is larger for flashes on the attended side — contralateral occipital"}]},
  CNVW:{name:"CNV Warning Signal (S1-S2 Paradigm)",body:"The warned reaction-time paradigm (Walter et al., 1964) presents a warning stimulus (S1) followed by an imperative stimulus (S2) after a fixed foreperiod (typically 1000 ms). A slow negative potential — the Contingent Negative Variation (CNV) — develops over frontal and central scalp between S1 and S2, reflecting motor preparation, temporal expectancy, and resource allocation. The early CNV (iCNV, ~300–500 ms post-S1) reflects orienting; the late CNV (tCNV, ~800–1000 ms) reflects motor readiness. Unlike the Bereitschaftspotential, the CNV is time-locked to a warning signal rather than being self-paced.",rules:[{key:"WAIT",desc:"After the warning tone (S1), prepare to respond as fast as possible"},{key:"F — RESPOND",desc:"Press F as quickly as possible when the imperative stimulus (S2) appears"},{key:"FOREPERIOD",desc:"S1 to S2 interval is always 1000 ms — anticipate and prepare during this window"},{key:"CNV",desc:"Negative slow wave builds over Fz/Cz during the foreperiod — peaks just before S2"},{key:"RT",desc:"Warning-signal RT is ~50ms faster than simple RT — CNV indexes this benefit"}]},
  THALPHA:{name:"Theta/Alpha Oscillations",body:"Eyes-open versus eyes-closed EEG recording is the simplest clinical baseline for assessing ongoing cortical oscillations. Posterior alpha (8–13 Hz) is strongly suppressed during eyes-open conditions, reflecting visual cortical activation (Berger, 1929). Frontal midline theta (4–8 Hz, Fz) indexes working memory load and cognitive effort, increasing with task difficulty. The alpha/theta ratio and individual alpha frequency (IAF) are stable trait measures. Abnormally low alpha peak frequency (<8 Hz) or excessive delta/theta at rest suggests diffuse encephalopathy. This paradigm alternates eyes-open and eyes-closed blocks to measure alpha reactivity.",rules:[{key:"CLOSED",desc:"Close your eyes during EYES CLOSED blocks — relax and keep still"},{key:"OPEN",desc:"Open your eyes and fixate the cross during EYES OPEN blocks"},{key:"ALPHA",desc:"Occipital alpha (8–13 Hz) should increase with eyes closed — the Berger effect"},{key:"THETA",desc:"Frontal theta (4–8 Hz) indexes cognitive load and meditation depth"},{key:"IAF",desc:"Individual Alpha Frequency (IAF) is the spectral peak within 8–13 Hz — a stable biomarker"}]},
  REWP:{name:"Reward Positivity (RewP / FRN)",body:"The Reward Positivity (RewP), also called the Feedback-Related Negativity (FRN), is an ERP component peaking ~250 ms after reward feedback. Win feedback elicits a relative positivity over frontocentral scalp; loss feedback elicits a relative negativity. The difference wave (win minus loss) isolates reward sensitivity. The RewP reflects activity of the mesocortical dopamine system projecting to anterior cingulate cortex. It is reduced in depression and enhanced in substance use disorders.",rules:[{key:"SPACE",desc:"Press SPACE when you see a WIN outcome — do not respond to losses"},{key:"WIN",desc:"Green ↑ = win feedback — elicits RewP (positive shift ~250 ms)"},{key:"LOSS",desc:"Red ↓ = loss feedback — elicits FRN (negative shift ~250 ms)"},{key:"FIXATE",desc:"Maintain fixation on the cross between trials"},{key:"PASSIVE",desc:"The ERP is recorded regardless of response — minimize movement"}]},
  LPC:{name:"Late Positive Component (LPC) — Episodic Memory",body:"The LPC (also called the late parietal component or parietal old-new effect; Rugg and Curran, 2007) is a sustained positive ERP component peaking approximately 500-800 ms over parietal electrodes for recognised old items relative to correctly rejected new items in an episodic recognition memory paradigm. The LPC is thought to reflect recollection — the retrieval of qualitative episodic information about the study context — as opposed to familiarity, which is indexed by the earlier FN400 (~300-500 ms, frontal). The LPC is enhanced for items associated with vivid recollective experience (high confidence remember responses vs know responses), for strongly encoded items, and is reduced by hippocampal damage that impairs recollection while leaving familiarity partially intact.",rules:[{key:"STUDY",desc:"Study a list of words carefully — you will be tested later"},{key:"TEST",desc:"Decide for each word: did you see it in the study list?"},{key:"F = OLD",desc:"Press F if you are confident you studied this word"},{key:"J = NEW",desc:"Press J if you are confident this word was not in the list"},{key:"LPC",desc:"LPC ~600ms at parietal sites is larger for recollected (remembered) than familiarity-based (known) responses"}]},
  FRN:{name:"Feedback-Related Negativity (FRN)",body:"The FRN (Miltner et al., 1997) is a fronto-central negative deflection peaking approximately 200-300 ms after the delivery of feedback indicating a negative outcome (loss, error, or worse-than-expected result). Unlike the ERN which follows the commission of one's own response errors, the FRN follows externally delivered feedback and is thought to reflect a reward prediction error signal generated by the anterior cingulate cortex in response to dopaminergic input from the midbrain. The FRN is larger for losses than gains (reflecting negativity bias in the prediction error system), for unexpected outcomes relative to expected ones, and is absent when the outcome is uninformative. The FRN amplitude is reduced in major depression (blunted sensitivity to reward/loss signals), elevated in problem gambling, and modulated by reward magnitude.",rules:[{key:"GAMBLE",desc:"On each trial, choose between two options (higher or lower risk)"},{key:"FEEDBACK",desc:"You will see the outcome after each choice — win or lose"},{key:"FRN",desc:"FRN ~250ms at Fz reflects neural response to negative feedback"},{key:"ERN vs FRN",desc:"ERN follows your own error; FRN follows external feedback about outcome"},{key:"PREDICTION",desc:"FRN is larger for unexpected losses than expected ones — a prediction error signal"}]}});

// ── New anim functions defined below ──────────────────────

// helper — draw a simple ERP waveform with a labelled peak

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function stopAnim(){if(animRAF){cancelAnimationFrame(animRAF);animRAF=null;}}
window._stopIntroAnim=stopAnim;
var getCtx=function(){var c=document.getElementById('introAnim');if(!c)return null;c.width=c.offsetWidth>0?c.offsetWidth:c.clientWidth>0?c.clientWidth:520;c.height=110;return c.getContext('2d');};
var W=520,H=110,GOLD='#d4b456',MID='rgba(138,180,208,0.5)',NAVY='#060d14';
function clear(ctx){ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);}
function cap(ctx,txt,col){ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=col||MID;ctx.textAlign='center';ctx.fillText(txt,W/2,H-5);}
function rect(ctx,x,y,w,h,stroke,fill){ctx.strokeStyle=stroke;ctx.lineWidth=1.5;ctx.fillStyle=fill||NAVY;ctx.fillRect(x,y,w,h);ctx.strokeRect(x,y,w,h);}

function animP50(){
  var t=0,phase=0;
  function tick(){animRAF=requestAnimationFrame(tick);
    var ctx=getCtx(); if(!ctx)return;t++;
    if(t>80){t=0;phase=(phase+1)%3;}
    clear(ctx);
    var cy=H/2-5,tw=W*0.38,tx1=W/2-tw-20,tx2=W/2+20;
    // S1 trace
    ctx.strokeStyle=GOLD;ctx.lineWidth=1.5;ctx.beginPath();
    for(var x=0;x<tw;x++){var ms=(x/tw)*300-50;var amp=-22*Math.exp(-0.5*Math.pow((ms-50)/18,2));ctx.lineTo(tx1+x,cy+amp);}ctx.stroke();
    // S2 trace — attenuated
    var att=phase>=1?0.25:1;
    ctx.strokeStyle=phase>=1?'#5b9fda':MID;ctx.lineWidth=1.5;ctx.beginPath();
    for(var x2=0;x2<tw;x2++){var ms2=(x2/tw)*300-50;var amp2=-22*att*Math.exp(-0.5*Math.pow((ms2-50)/18,2));ctx.lineTo(tx2+x2,cy+amp2);}ctx.stroke();
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';ctx.fillText('S1',tx1+tw/2,cy-28);
    ctx.fillStyle=phase>=1?'#5b9fda':MID;ctx.fillText('S2 (gated)',tx2+tw/2,cy-28);
    cap(ctx,phase===0?'unpaired':'S2/S1 ratio < 0.5 = healthy gating',phase>=1?'#5b9fda':MID);
  }tick();
}

function animN100(){
  var t=0,phase=0;
  function tick(){animRAF=requestAnimationFrame(tick);
    var ctx=getCtx(); if(!ctx)return;t++;
    if(t>60){t=0;phase=(phase+1)%2;}
    clear(ctx);
    var cy=H/2-5,tw=W*0.7,tx=(W-tw)/2;
    ctx.strokeStyle='rgba(138,180,208,0.2)';ctx.lineWidth=0.5;ctx.beginPath();ctx.moveTo(tx,cy);ctx.lineTo(tx+tw,cy);ctx.stroke();
    ctx.strokeStyle=GOLD;ctx.lineWidth=1.5;ctx.beginPath();
    for(var x=0;x<tw;x++){var ms=(x/tw)*500-50;var n1=-30*Math.exp(-0.5*Math.pow((ms-100)/22,2));var p2=18*Math.exp(-0.5*Math.pow((ms-200)/28,2));ctx.lineTo(tx+x,cy+n1+p2);}ctx.stroke();
    var n1x=tx+((100+50)/500)*tw,p2x=tx+((200+50)/500)*tw;
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';
    if(phase===1){ctx.fillText('N100',n1x,cy-35);ctx.fillText('P200',p2x,cy+26);}
    cap(ctx,'auditory evoked potential — fronto-central scalp');
  }tick();
}


function animSCP(){
  var t=0;
  function tick(){animRAF=requestAnimationFrame(tick);
    var ctx=getCtx(); if(!ctx)return;t++;
    clear(ctx);
    var cy=H/2,tw=W*0.75,tx=(W-tw)/2;
    ctx.strokeStyle='rgba(138,180,208,0.15)';ctx.lineWidth=0.5;ctx.beginPath();ctx.moveTo(tx,cy);ctx.lineTo(tx+tw,cy);ctx.stroke();
    var prog=Math.min(1,(t%120)/80);
    ctx.strokeStyle=GOLD;ctx.lineWidth=2;ctx.beginPath();
    for(var x=0;x<tw*prog;x++){var frac=x/(tw);var amp=-28*Math.sin(frac*Math.PI)*frac;ctx.lineTo(tx+x,cy+amp);}ctx.stroke();
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=GOLD;ctx.textAlign='left';ctx.fillText('CUE',tx,cy-32);
    ctx.fillStyle=MID;ctx.textAlign='right';ctx.fillText('RESPONSE',tx+tw,cy-32);
    cap(ctx,'slow cortical negativity during cognitive preparation (~0.5–10 s)');
  }tick();
}

function animP3A(){
  var t=0,phase=0,stim='standard';
  function tick(){animRAF=requestAnimationFrame(tick);
    var ctx=getCtx(); if(!ctx)return;t++;
    if(t>65){t=0;phase=(phase+1)%4;stim=['standard','standard','target','novel'][phase];}
    clear(ctx);var cy=H/2-5,tw=W*0.6,tx=(W-tw)/2;
    ctx.strokeStyle='rgba(138,180,208,0.15)';ctx.lineWidth=0.5;ctx.beginPath();ctx.moveTo(tx,cy);ctx.lineTo(tx+tw,cy);ctx.stroke();
    var col=stim==='standard'?MID:stim==='target'?GOLD:'#e07070';
    var amp=stim==='standard'?0:stim==='target'?28:22;
    var ms=stim==='target'?350:280;
    ctx.strokeStyle=col;ctx.lineWidth=1.5;ctx.beginPath();
    for(var x=0;x<tw;x++){var t2=(x/tw)*600-100;var a=amp*Math.exp(-0.5*Math.pow((t2-ms)/50,2));ctx.lineTo(tx+x,cy-a);}ctx.stroke();
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=col;ctx.textAlign='center';
    if(stim!=='standard')ctx.fillText(stim==='target'?'P3b ~350ms (parietal)':'P3a ~280ms (frontal)',W/2,cy-32);
    cap(ctx,stim==='standard'?'standard (70%)':stim==='target'?'target (15%) — P3b':'novel (15%) — P3a',col);
  }tick();
}

function animASSR(){
  var t=0;
  function tick(){animRAF=requestAnimationFrame(tick);
    var ctx=getCtx(); if(!ctx)return;t++;
    clear(ctx);var cy=H/2-5;
    // 40Hz oscillation
    ctx.strokeStyle=GOLD;ctx.lineWidth=1.5;ctx.beginPath();
    for(var x=0;x<W-40;x++){var amp=20*Math.sin((x/12+t/3)*Math.PI*2)*Math.exp(-Math.pow((x-(W-40)/2)/(W*0.25),2)+0.5);ctx.lineTo(20+x,cy+amp);}ctx.stroke();
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';ctx.fillText('40 Hz phase-locked response — occipital + temporal',W/2,cy-28);
    cap(ctx,'AM tone at 40Hz → brain oscillates at exactly 40Hz');
  }tick();
}

function animCPT(){
  var seq=['B','A','X','M','A','X','K'],t=0,li=0,phase=0;
  function tick(){animRAF=requestAnimationFrame(tick);
    var ctx=getCtx(); if(!ctx)return;t++;
    if(t>40){t=0;phase=(phase+1)%2;if(phase===0)li=(li+1)%seq.length;}
    clear(ctx);
    var ltr=seq[li],isTarget=(li>0&&seq[li-1]==='A'&&ltr==='X');
    ctx.font='bold 52px monospace';ctx.fillStyle=isTarget?GOLD:MID;ctx.textAlign='center';ctx.textBaseline='middle';
    if(phase===0)ctx.fillText(ltr,W/2,H/2-5);ctx.textBaseline='alphabetic';
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=isTarget?GOLD:MID;ctx.textAlign='center';ctx.fillText(isTarget?'TARGET → RESPOND (A-X sequence)':'do not respond',W/2,H-18);
    cap(ctx,'sustained vigilance — respond only to X after A',isTarget?GOLD:MID);
  }tick();
}

function animEmotStroop(){
  var words=[{w:'FEAR',col:'#5b9fda',em:true},{w:'TABLE',col:'#d4b456',em:false},{w:'ANGER',col:'#5b9fda',em:true},{w:'CHAIR',col:'#d4b456',em:false}];
  var t=0,wi=0,phase=0;
  function tick(){animRAF=requestAnimationFrame(tick);
    var ctx=getCtx(); if(!ctx)return;t++;
    if(t>55){t=0;phase=(phase+1)%2;if(phase===0)wi=(wi+1)%words.length;}
    clear(ctx);var w=words[wi];
    ctx.font='bold 30px "Cormorant Garamond",serif';ctx.fillStyle=w.col;ctx.textAlign='center';ctx.textBaseline='middle';
    if(phase===0)ctx.fillText(w.w,W/2,H/2-5);ctx.textBaseline='alphabetic';
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=w.em?'#e07070':GOLD;ctx.textAlign='center';
    ctx.fillText(w.em?'emotional — RT slows':'neutral — fast RT',W/2,H-18);
    cap(ctx,'respond to ink color — '+w.col+' = J',w.col);
  }tick();
}

function animTaskSwitch(){
  var trials=[{s:'7',task:'NUMBER',ans:'ODD'},{s:'7',task:'NUMBER',ans:'ODD'},{s:'e',task:'LETTER',ans:'VOWEL'},{s:'e',task:'LETTER',ans:'VOWEL'},{s:'4',task:'NUMBER',ans:'EVEN'}];
  var t=0,ti=0,phase=0;
  function tick(){animRAF=requestAnimationFrame(tick);
    var ctx=getCtx(); if(!ctx)return;t++;
    if(t>50){t=0;phase=(phase+1)%2;if(phase===0){var prev=ti;ti=(ti+1)%trials.length;}}
    clear(ctx);var tr=trials[ti],sw=(ti>0&&trials[ti].task!==trials[(ti-1+trials.length)%trials.length].task);
    ctx.font='10px "Source Code Pro",monospace';ctx.fillStyle=tr.task==='NUMBER'?GOLD:'#5b9fda';ctx.textAlign='center';ctx.fillText(tr.task,W/2,28);
    ctx.font='bold 44px monospace';ctx.fillStyle=sw?'#e07070':MID;ctx.textBaseline='middle';
    if(phase===0)ctx.fillText(tr.s,W/2,H/2);ctx.textBaseline='alphabetic';
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=sw?'#e07070':GOLD;ctx.textAlign='center';ctx.fillText(sw?'SWITCH — slower RT':'REPEAT — fast RT',W/2,H-18);
    cap(ctx,tr.ans,sw?'#e07070':GOLD);
  }tick();
}

function animDualTask(){
  var t=0,dotX=W/2,dotY=H/2,dotVx=1.2,dotVy=0.8,ltr='K',lphase=0;
  function tick(){animRAF=requestAnimationFrame(tick);
    var ctx=getCtx(); if(!ctx)return;t++;
    dotX+=dotVx;dotY+=dotVy;
    if(dotX<60||dotX>W-60)dotVx*=-1;if(dotY<25||dotY>H-25)dotVy*=-1;
    if(t%30===0){lphase++;var letters='BKPQMTAEFX';ltr=letters[Math.floor(Math.random()*letters.length)];}
    clear(ctx);
    // task 1: letter stream
    ctx.font='bold 28px monospace';ctx.fillStyle=ltr==='X'?GOLD:MID;ctx.textAlign='left';ctx.textBaseline='middle';ctx.fillText(ltr,20,H/2);ctx.textBaseline='alphabetic';
    ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='left';ctx.fillText('TASK 1',18,18);
    // task 2: moving dot
    ctx.beginPath();ctx.arc(dotX,dotY,8,0,Math.PI*2);ctx.fillStyle=GOLD;ctx.fill();
    ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='right';ctx.fillText('TASK 2',W-18,18);
    cap(ctx,'monitor letter (F) + track dot (J) simultaneously');
  }tick();
}

function animAttBlink(){
  var stream='BKPFMQTAXBDGR',t=0,si=0,phase=0;
  function tick(){animRAF=requestAnimationFrame(tick);
    var ctx=getCtx(); if(!ctx)return;t++;
    if(t>12){t=0;si=(si+1)%stream.length;}
    clear(ctx);
    var ltr=stream[si],isT1=(ltr==='A'),isT2=(ltr==='X');
    ctx.font='bold 54px monospace';ctx.textAlign='center';ctx.textBaseline='middle';
    ctx.fillStyle=isT1?GOLD:isT2?'#5b9fda':MID;
    ctx.fillText(ltr,W/2,H/2-8);ctx.textBaseline='alphabetic';
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=isT2?'#e07070':MID;ctx.textAlign='center';
    ctx.fillText(isT1?'T1 detected — blink window opens':isT2?'T2 in blink window — often missed':'',W/2,H-18);
    cap(ctx,'RSVP 10/sec — press SPACE for colored targets');
  }tick();
}

function animSubitize(){
  var t=0,n=1;
  function tick(){animRAF=requestAnimationFrame(tick);
    var ctx=getCtx(); if(!ctx)return;t++;
    if(t>50){t=0;n=n<8?n+1:1;}
    clear(ctx);
    var dots=[];var seed=n*137;
    for(var i=0;i<n;i++){dots.push({x:W/2-80+((seed*(i+1)*73)%160),y:H/2-20+(((seed*(i+1)*31)%60)-30)});}
    dots.forEach(function(d){ctx.beginPath();ctx.arc(d.x,d.y,7,0,Math.PI*2);ctx.fillStyle=n<=4?GOLD:MID;ctx.fill();});
    ctx.font='bold 13px "Source Code Pro",monospace';ctx.fillStyle=n<=4?GOLD:MID;ctx.textAlign='right';
    ctx.fillText(n<=4?'SUBITIZE':'COUNT',W-20,H-18);
    cap(ctx,n+' dot'+(n>1?'s':'')+' — '+(n<=4?'flat RT (1–4)':'steep RT slope (5+)'),n<=4?GOLD:MID);
  }tick();
}

function animLexDec(){
  var items=[{w:'DOCTOR',real:true,freq:'high'},{w:'FLURP',real:false,freq:''},{w:'SERAPH',real:true,freq:'low'},{w:'BLARG',real:false,freq:''},{w:'TABLE',real:true,freq:'high'}];
  var t=0,ii=0,phase=0;
  function tick(){animRAF=requestAnimationFrame(tick);
    var ctx=getCtx(); if(!ctx)return;t++;
    if(t>55){t=0;phase=(phase+1)%2;if(phase===0)ii=(ii+1)%items.length;}
    clear(ctx);var it=items[ii];
    ctx.font='bold 32px "Cormorant Garamond",serif';ctx.fillStyle=it.real?GOLD:MID;ctx.textAlign='center';ctx.textBaseline='middle';
    if(phase===0)ctx.fillText(it.w,W/2,H/2-5);ctx.textBaseline='alphabetic';
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=it.real?GOLD:MID;ctx.textAlign='center';
    ctx.fillText(it.real?'WORD (F) — '+it.freq+' frequency':'NON-WORD (J)',W/2,H-18);
    cap(ctx,'word or non-word?',it.real?GOLD:MID);
  }tick();
}

function animSemFluency(){
  var words=['CAT','DOG','LION','TIGER','BEAR','EAGLE','SHARK','WHALE'];
  var t=0,shown=0;
  function tick(){animRAF=requestAnimationFrame(tick);
    var ctx=getCtx(); if(!ctx)return;t++;
    if(t%15===0&&shown<words.length)shown++;
    clear(ctx);
    for(var i=0;i<shown;i++){
      ctx.font='11px "Source Code Pro",monospace';ctx.fillStyle=GOLD;ctx.textAlign='left';
      var col=Math.floor(i/4),row=i%4;
      ctx.fillText(words[i],W/2-120+col*130,30+row*18);
    }
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('60 seconds — name as many animals as possible',W/2,H-18);
    cap(ctx,shown+' animals so far…',GOLD);
  }tick();
}

function animProsMem(){
  var words=['CHAIR','TABLE','RIVER','TIGER','HOUSE','MUSIC'];
  var PM_TARGET='TIGER';var t=0,wi=0,phase=0;
  function tick(){animRAF=requestAnimationFrame(tick);
    var ctx=getCtx(); if(!ctx)return;t++;
    if(t>35){t=0;phase=(phase+1)%2;if(phase===0)wi=(wi+1)%words.length;}
    clear(ctx);var w=words[wi],isPM=w===PM_TARGET;
    ctx.font='bold 30px "Cormorant Garamond",serif';ctx.fillStyle=isPM?GOLD:MID;ctx.textAlign='center';ctx.textBaseline='middle';
    if(phase===0)ctx.fillText(w,W/2,H/2-5);ctx.textBaseline='alphabetic';
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=isPM?GOLD:MID;ctx.textAlign='center';
    ctx.fillText(isPM?'PM TARGET — press SPACE!':'classify: vowel or consonant (first letter)',W/2,H-18);
    cap(ctx,'remember to press SPACE when you see: '+PM_TARGET,isPM?GOLD:MID);
  }tick();
}

function animSpatWM(){
  var GRID=[[1,2,3],[4,5,6],[7,8,9]];var seq=[1,5,3,7];
  var t=0,si=-1,phase=0;
  function tick(){animRAF=requestAnimationFrame(tick);
    var ctx=getCtx(); if(!ctx)return;t++;
    if(t>35){t=0;phase=(phase+1)%2;if(phase===0){si++;if(si>=seq.length)si=-1;}}
    clear(ctx);var bw=36,gap=8,ox=W/2-3*(bw+gap)/2,oy=H/2-3*(bw+gap)/2;
    for(var r=0;r<3;r++)for(var c=0;c<3;c++){
      var n=GRID[r][c],active=si>=0&&seq[si]===n&&phase===0;
      var recall=si<0&&seq.indexOf(n)>=0;
      var x=ox+c*(bw+gap),y=oy+r*(bw+gap);
      ctx.strokeStyle=active?GOLD:recall?'#5b9fda':MID;ctx.lineWidth=1.5;
      ctx.fillStyle=active?'rgba(212,180,86,0.2)':recall?'rgba(91,159,218,0.12)':'#0a1620';
      ctx.fillRect(x,y,bw,bw);ctx.strokeRect(x,y,bw,bw);
    }
    cap(ctx,si>=0?'memorise sequence ('+seq.slice(0,si+1).join('→')+')':'recall: click boxes in order',si>=0?GOLD:MID);
  }tick();
}


function animDrawERP(ctx,W,H,peakMs,peakAmp,label,col,totalMs){
  totalMs=totalMs||600;
  var tw=W*0.8,tx=(W-tw)/2,cy=H/2-8;
  ctx.strokeStyle=col||GOLD;ctx.lineWidth=1.5;ctx.beginPath();
  for(var x=0;x<tw;x++){
    var t=(x/tw)*totalMs-100;
    var amp=peakAmp*Math.exp(-0.5*Math.pow((t-peakMs)/40,2));
    ctx.lineTo(tx+x,cy-amp);
  }
  ctx.stroke();
  // zero line
  ctx.strokeStyle='rgba(138,180,208,0.2)';ctx.lineWidth=0.5;
  ctx.beginPath();ctx.moveTo(tx,cy);ctx.lineTo(tx+tw,cy);ctx.stroke();
  // label at peak
  var px=tx+((peakMs+100)/totalMs)*tw;
  ctx.fillStyle=col||GOLD;ctx.font='9px "Source Code Pro",monospace';ctx.textAlign='center';ctx.fillText(label,px,cy-Math.abs(peakAmp)-8);
}

function animMoCA(){
  var GOLD='#d4b456',MID='rgba(138,180,208,0.5)',NAVY='#060d14';
  var domains=[{lbl:'Visuosp.',pts:5},{lbl:'Naming',pts:3},{lbl:'Memory',pts:5},{lbl:'Attn',pts:6},{lbl:'Lang',pts:3},{lbl:'Abstraction',pts:2},{lbl:'Orient.',pts:6}];
  var t=0;
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;
    var ctx=getCtx(); if(!ctx) return;
    ctx.clearRect(0,0,520,110);ctx.fillStyle=NAVY;ctx.fillRect(0,0,520,110);
    var bw=52,gap=6,ox=16,oy=18;
    domains.forEach(function(d,i){
      var fill=Math.min(1,t/(60+i*8));
      var bh=60*fill;
      ctx.fillStyle='rgba(212,180,86,0.12)';ctx.fillRect(ox+i*(bw+gap),oy,bw,60);
      ctx.fillStyle=GOLD;ctx.fillRect(ox+i*(bw+gap),oy+60-bh,bw,bh);
      ctx.strokeStyle='rgba(212,180,86,0.3)';ctx.lineWidth=1;ctx.strokeRect(ox+i*(bw+gap),oy,bw,60);
      ctx.fillStyle=GOLD;ctx.font='9px "Source Code Pro",monospace';ctx.textAlign='center';
      ctx.fillText(d.pts,ox+i*(bw+gap)+bw/2,oy+60+10);
      ctx.fillStyle=MID;ctx.font='8px "Source Code Pro",monospace';
      ctx.fillText(d.lbl,ox+i*(bw+gap)+bw/2,105);
    });
    ctx.fillStyle=GOLD;ctx.font='bold 11px "Source Code Pro",monospace';ctx.textAlign='right';
    ctx.fillText('/30',504,28);
  }
  tick();
}

function animREWP(){
  var RED='#e05c5c';
  var t=0;
  function tick(){
    animRAF=requestAnimationFrame(tick); t++;
    var ctx=getCtx(); if(!ctx) return;
    ctx.clearRect(0,0,520,110); ctx.fillStyle=NAVY; ctx.fillRect(0,0,520,110);
    var W=520,H=110, cy=H/2-5, tw=W*0.7, tx=(W-tw)/2;
    // zero line
    ctx.strokeStyle='rgba(138,180,208,0.15)'; ctx.lineWidth=0.5;
    ctx.beginPath(); ctx.moveTo(tx,cy); ctx.lineTo(tx+tw,cy); ctx.stroke();
    // WIN trace (positive)
    ctx.strokeStyle=GOLD; ctx.lineWidth=1.5; ctx.beginPath();
    for(var x=0;x<tw;x++){
      var ms=(x/tw)*600-100;
      var rewp=24*Math.exp(-0.5*Math.pow((ms-250)/55,2));
      var n2=-10*Math.exp(-0.5*Math.pow((ms-200)/30,2));
      ctx.lineTo(tx+x, cy-(rewp+n2));
    } ctx.stroke();
    // LOSS trace (negative)
    ctx.strokeStyle=RED; ctx.lineWidth=1.5; ctx.beginPath();
    for(var x=0;x<tw;x++){
      var ms=(x/tw)*600-100;
      var frn=-18*Math.exp(-0.5*Math.pow((ms-250)/55,2));
      ctx.lineTo(tx+x, cy-(frn));
    } ctx.stroke();
    // Labels
    ctx.font='9px "Source Code Pro",monospace'; ctx.textAlign='center';
    ctx.fillStyle=GOLD; ctx.fillText('WIN (RewP)',tx+tw*0.58,cy-30);
    ctx.fillStyle=RED;  ctx.fillText('LOSS (FRN)',tx+tw*0.58,cy+26);
    ctx.fillStyle=MID;  ctx.fillText('0',tx,cy-8);
    ctx.fillStyle=MID;  ctx.font='8px "Source Code Pro",monospace';
    ctx.fillText('250ms',tx+tw*(350/600),H-4);
  }
  tick();
}


function animDigCan(){
  var TARGETS=[3,7];
  var cells=[];for(var i=0;i<40;i++)cells.push(Math.floor(Math.random()*10));
  var highlighted=[];var t=0,flash=0;
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    if(t%30===0){flash=(flash+1)%cells.length;}
    var cols=20,cw=24,ch=20,ox=4,oy=8;
    for(var i=0;i<cells.length;i++){
      var col=i%cols,row=Math.floor(i/cols);
      var x=ox+col*cw,y=oy+row*ch;
      var isTarget=TARGETS.indexOf(cells[i])>=0;
      var isFlash=i===flash&&isTarget;
      ctx.fillStyle=isFlash?'rgba(212,180,86,0.3)':isTarget?'rgba(212,180,86,0.08)':'#0a1620';
      ctx.strokeStyle=isFlash?GOLD:isTarget?'rgba(212,180,86,0.3)':'rgba(138,180,208,0.15)';
      ctx.lineWidth=1;ctx.fillRect(x,y,cw-2,ch-2);ctx.strokeRect(x,y,cw-2,ch-2);
      ctx.font='10px "Source Code Pro",monospace';
      ctx.fillStyle=isFlash?GOLD:isTarget?'rgba(212,180,86,0.7)':MID;
      ctx.textAlign='center';ctx.fillText(cells[i],x+(cw-2)/2,y+(ch-2)*0.75);
    }
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=GOLD;ctx.textAlign='left';
    ctx.fillText('TARGET: '+TARGETS.join(' & '),ox,H-4);
  }
  tick();
}


function animABR(){
  var WAVES=[
    {lat:1.7,amp:14},{lat:2.9,amp:9},
    {lat:3.9,amp:20},{lat:5.1,amp:13},{lat:5.7,amp:36}
  ];
  var LABELS=['I','II','III','IV','V'];
  var t=0,sweep=0;
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var totalMs=12,tw=W*0.82,tx=(W-tw)/2,cy=H/2+8;
    // zero line
    ctx.strokeStyle='rgba(138,180,208,0.12)';ctx.lineWidth=0.5;
    ctx.beginPath();ctx.moveTo(tx,cy);ctx.lineTo(tx+tw,cy);ctx.stroke();
    // Sweep line
    var sweepX=tx+(sweep/totalMs)*tw;
    ctx.strokeStyle='rgba(212,180,86,0.15)';ctx.lineWidth=1;
    ctx.beginPath();ctx.moveTo(sweepX,8);ctx.lineTo(sweepX,H-8);ctx.stroke();
    sweep=(sweep+0.08)%totalMs;
    // Waveform
    ctx.strokeStyle=GOLD;ctx.lineWidth=1.5;ctx.beginPath();
    for(var x=0;x<tw;x++){
      var ms=(x/tw)*totalMs;
      var amp=0;
      WAVES.forEach(function(w,i){
        var neg=(i===1||i===3)?-1:1;  // II and IV are negative
        amp+=w.amp*neg*Math.exp(-0.5*Math.pow((ms-w.lat)/0.22,2));
      });
      ctx.lineTo(tx+x,cy-amp*0.55);
    }
    ctx.stroke();
    // Wave labels I–V
    WAVES.forEach(function(w,i){
      var x=tx+(w.lat/totalMs)*tw;
      var neg=(i===1||i===3);
      ctx.strokeStyle='rgba(212,180,86,0.2)';ctx.lineWidth=0.5;
      ctx.beginPath();ctx.moveTo(x,cy+(neg?10:-28));ctx.lineTo(x,cy+(neg?28:-10));ctx.stroke();
      ctx.fillStyle=i===4?GOLD:MID;
      ctx.font=(i===4?'bold ':'')+'8px "Source Code Pro",monospace';
      ctx.textAlign='center';
      ctx.fillText(LABELS[i],x,cy+(neg?38:-30));
    });
    // Rate label
    ctx.fillStyle=MID;ctx.font='8px "Source Code Pro",monospace';ctx.textAlign='left';
    ctx.fillText('11.1 clicks/sec',tx,H-4);
    ctx.textAlign='right';ctx.fillText('0–12ms',tx+tw,H-4);
  }
  tick();
}


function animSymSearch(){
  var SYMS=['▲','●','■','◆','★','✦','⊕','⊗','Ψ','Φ','Ω','Σ'];
  var item=null,t=0,flash=0;
  function makeItem(){
    var pool=SYMS.slice().sort(function(){return Math.random()-0.5;});
    var t1=pool[0],t2=pool[1];
    var arr=pool.slice(2,7);
    if(Math.random()<0.5) arr[Math.floor(Math.random()*5)]=Math.random()<0.5?t1:t2;
    return {t1:t1,t2:t2,arr:arr};
  }
  item=makeItem();
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;
    if(t%80===0){item=makeItem();}
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var cw=36,ch=38,gap=5,ty=H/2-ch/2;
    // Targets
    ctx.font='bold 10px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';
    ctx.fillText('TARGETS',cw+gap/2,ty-8);
    [item.t1,item.t2].forEach(function(s,i){
      var x=8+i*(cw+gap);
      ctx.strokeStyle='rgba(212,180,86,0.5)';ctx.lineWidth=1.5;
      ctx.fillStyle='rgba(212,180,86,0.08)';ctx.fillRect(x,ty,cw,ch);ctx.strokeRect(x,ty,cw,ch);
      ctx.font='18px monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';
      ctx.fillText(s,x+cw/2,ty+ch*0.72);
    });
    // Divider
    var dx=8+2*(cw+gap)+10;
    ctx.strokeStyle='rgba(138,180,208,0.3)';ctx.lineWidth=1;
    ctx.beginPath();ctx.moveTo(dx,ty-4);ctx.lineTo(dx,ty+ch+4);ctx.stroke();
    ctx.font='bold 10px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';
    ctx.fillText('SEARCH',dx+12+item.arr.length*(cw+gap)/2,ty-8);
    // Search array
    item.arr.forEach(function(s,i){
      var x=dx+14+i*(cw+gap);
      var isTarget=s===item.t1||s===item.t2;
      ctx.strokeStyle=isTarget?'rgba(212,180,86,0.4)':'rgba(138,180,208,0.2)';ctx.lineWidth=1.5;
      ctx.fillStyle=isTarget?'rgba(212,180,86,0.06)':'#0a1620';
      ctx.fillRect(x,ty,cw,ch);ctx.strokeRect(x,ty,cw,ch);
      ctx.font='18px monospace';ctx.fillStyle=isTarget?GOLD:MID;ctx.textAlign='center';
      ctx.fillText(s,x+cw/2,ty+ch*0.72);
    });
  }
  tick();
}


function animPhonFlue(){
  var LETTERS=['F','A','S'];
  var SAMPLE={
    F:['fox','find','farm','fish','front','fast','flow','fur','face','feel'],
    A:['art','arm','apple','able','ask','aim','act','arc','amid','air'],
    S:['sun','sail','step','short','sit','slow','seed','side','soft','star']
  };
  var t=0,li=0,wi=0,showWord=false;
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;
    if(t%18===0){
      showWord=!showWord;
      if(!showWord){wi=(wi+1)%SAMPLE[LETTERS[li]].length;}
      if(wi===0&&!showWord){li=(li+1)%3;}
    }
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var letter=LETTERS[li];
    // Big letter
    ctx.font='bold 64px "Source Code Pro",monospace';
    ctx.fillStyle='rgba(212,180,86,0.15)';ctx.textAlign='center';
    ctx.fillText(letter,W/2,H/2+20);
    // Streaming word
    if(showWord){
      var word=SAMPLE[letter][wi];
      ctx.font='18px "EB Garamond",serif';ctx.fillStyle=GOLD;ctx.textAlign='center';
      // Highlight the first letter
      var fw=ctx.measureText(word[0]).width;
      var tw2=ctx.measureText(word).width;
      ctx.fillStyle=MID;ctx.fillText(word,W/2,H/2+10);
      ctx.fillStyle=GOLD;ctx.fillText(word[0],W/2-tw2/2+fw/2,H/2+10);
    }
    // Letter tabs
    LETTERS.forEach(function(l,i){
      var x=W/2+(i-1)*60,y=H-18;
      ctx.font='bold 11px "Source Code Pro",monospace';ctx.textAlign='center';
      ctx.fillStyle=l===letter?GOLD:MID;
      ctx.fillText(l,x,y);
      if(l===letter){
        ctx.strokeStyle=GOLD;ctx.lineWidth=1;
        ctx.beginPath();ctx.moveTo(x-12,y+4);ctx.lineTo(x+12,y+4);ctx.stroke();
      }
    });
  }
  tick();
}


function animJLO(){
  var t=0,phase=0,phaseTick=0;
  var targetAngles=[3,8], selectedLines=[];
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;phaseTick++;
    // Cycle through: show stim → show fan → show selection → confirm
    if(phaseTick>90){phaseTick=0;phase=(phase+1)%3;
      if(phase===0){targetAngles=[1+Math.floor(Math.random()*11),1+Math.floor(Math.random()*11)];
        while(targetAngles[0]===targetAngles[1])targetAngles[1]=1+Math.floor(Math.random()*11);
        selectedLines=[];}
      if(phase===2){selectedLines=targetAngles.slice();}
    }
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var cx=W/2,cy=H/2+10,fanLen=38,stimLen=22;

    // Left: stim panel
    ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';
    ctx.fillText('MATCH',80,22);
    var cols=['#d4b456','#5b9fda'];
    targetAngles.forEach(function(n,i){
      var deg=(n-1)*18,rad=deg*Math.PI/180;
      var ox=60+(i*40);
      ctx.strokeStyle=cols[i];ctx.lineWidth=2;ctx.lineCap='round';
      ctx.beginPath();
      ctx.moveTo(ox-Math.cos(rad)*stimLen,cy+Math.sin(rad)*stimLen);
      ctx.lineTo(ox+Math.cos(rad)*stimLen,cy-Math.sin(rad)*stimLen);
      ctx.stroke();
    });

    // Divider
    ctx.strokeStyle='rgba(138,180,208,0.15)';ctx.lineWidth=1;
    ctx.beginPath();ctx.moveTo(W/2-20,12);ctx.lineTo(W/2-20,H-12);ctx.stroke();

    // Right: fan
    ctx.font='8px "Source Code Pro",monospace';ctx.textAlign='center';
    ctx.fillStyle=MID;ctx.fillText('FAN',W/2+70,22);
    var fanCx=W/2+60,fanCy=H-18;
    for(var n=1;n<=11;n++){
      var deg2=(n-1)*18,rad2=deg2*Math.PI/180;
      var sel=selectedLines.indexOf(n)>=0;
      ctx.strokeStyle=sel?GOLD:'rgba(138,180,208,0.35)';
      ctx.lineWidth=sel?2:1;
      ctx.beginPath();ctx.moveTo(fanCx,fanCy);
      ctx.lineTo(fanCx+Math.cos(rad2)*fanLen,fanCy-Math.sin(rad2)*fanLen);ctx.stroke();
      ctx.font=(sel?'bold ':'')+'8px "Source Code Pro",monospace';
      ctx.fillStyle=sel?GOLD:MID;ctx.textAlign='center';ctx.textBaseline='middle';
      var lx=fanCx+Math.cos(rad2)*(fanLen+10),ly=fanCy-Math.sin(rad2)*(fanLen+10);
      ctx.fillText(n,lx,ly);
    }
  }
  tick();
}


function animPASAT(){
  var nums=[3,7,4,2,8,5,1,9,6,3,7,2];
  var t=0,ni=0,showNum=false,prevNum=null,currNum=null,sum=null,showSum=false;
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;
    if(t%28===0){
      showSum=false;prevNum=currNum;currNum=nums[ni%nums.length];ni++;
      sum=prevNum!==null?prevNum+currNum:null;showNum=true;
    }
    if(showNum&&t%28===14){showSum=true;}
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    // Pace bar
    var pct=1-((t%28)/28);
    ctx.fillStyle='rgba(212,180,86,0.15)';ctx.fillRect(0,H-6,W,6);
    ctx.fillStyle=pct>0.3?GOLD:'#e05c5c';ctx.fillRect(0,H-6,W*pct,6);
    // Digits
    if(prevNum!==null){
      ctx.font='22px "Source Code Pro",monospace';ctx.fillStyle='rgba(138,180,208,0.4)';ctx.textAlign='center';
      ctx.fillText(prevNum,W/2-60,H/2+8);
    }
    ctx.font='11px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';
    if(prevNum!==null) ctx.fillText('+',W/2-20,H/2+8);
    if(currNum!==null){
      ctx.font='bold 36px "Source Code Pro",monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';
      ctx.fillText(currNum,W/2+20,H/2+12);
    }
    if(showSum&&sum!==null){
      ctx.font='18px "Source Code Pro",monospace';ctx.fillStyle='rgba(129,199,132,0.85)';ctx.textAlign='center';
      ctx.fillText('= '+sum,W/2+80,H/2+8);
    }
    ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='left';
    ctx.fillText('add each new digit to the one before it',10,16);
  }
  tick();
}


function animRAVLT(){
  var LIST_A=['drum','curtain','bell','coffee','school','parent','moon','garden','hat','farmer'];
  var t=0,wi=0,phase=0,phaseTick=0;
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;phaseTick++;
    if(phaseTick>20){phaseTick=0;
      if(phase===0){wi=(wi+1)%LIST_A.length;}
      else if(phase===1&&wi>4){phase=2;wi=0;}
      if(phase===2) phase=0;
    }
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    // Trial label
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='left';
    ctx.fillText('TRIAL I–V  →  INTERFERENCE B  →  RECALL VI  →  DELAY  →  RECALL VII',10,14);
    // Progress dots I–V
    var trialNames=['I','II','III','IV','V','B','VI','VII'];
    trialNames.forEach(function(tn,i){
      var x=20+i*60,y=32;
      ctx.beginPath();ctx.arc(x,y,6,0,Math.PI*2);
      ctx.fillStyle=i<=4?GOLD:tn==='B'?'#e05c5c':MID;ctx.fill();
      ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=NAVY;ctx.textAlign='center';
      ctx.fillText(tn,x,y+3);
    });
    // Current word
    var word=LIST_A[wi]||'';
    ctx.font='bold 38px "EB Garamond",serif';ctx.fillStyle=GOLD;ctx.textAlign='center';
    ctx.fillText(word,W/2,H/2+14);
    // Word count indicator
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';
    ctx.fillText((wi+1)+' / 15',W/2,H-10);
  }
  tick();
}


function animCVLT(){
  var CATS={Fruits:['apple','mango','peach','cherry'],Tools:['hammer','wrench','pliers','chisel'],
            Clothing:['blouse','jacket','sandal','glove'],Spices:['pepper','ginger','nutmeg','clove']};
  var catNames=Object.keys(CATS);
  var catCols=['#d4b456','#5b9fda','#81c784','#e07070'];
  var t=0,wi=0,ci=0;
  var flatList=[];
  catNames.forEach(function(c,i){CATS[c].forEach(function(w){flatList.push({word:w,cat:i});});});
  flatList.sort(function(){return Math.random()-0.5;});
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;
    if(t%22===0){wi=(wi+1)%flatList.length;}
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    // Category legend
    catNames.forEach(function(c,i){
      ctx.font='8px "Source Code Pro",monospace';
      ctx.fillStyle=catCols[i];ctx.textAlign='left';
      ctx.fillText(c,10+i*125,14);
    });
    // Current word
    var item=flatList[wi];
    ctx.font='bold 36px "EB Garamond",serif';
    ctx.fillStyle=catCols[item.cat];ctx.textAlign='center';
    ctx.fillText(item.word,W/2,H/2+12);
    // Category label
    ctx.font='10px "Source Code Pro",monospace';
    ctx.fillStyle='rgba('+[catCols[item.cat].slice(1).match(/../g).map(function(h){return parseInt(h,16);}).join(',')]+',0.6)';
    ctx.fillText(catNames[item.cat].toUpperCase(),W/2,H/2+28);
    // Trial dots
    var trials=['T1','T2','T3','T4','T5','B','→'];
    trials.forEach(function(tn,i){
      var x=W/2+(i-3)*52,y=H-14;
      ctx.beginPath();ctx.arc(x,y,5,0,Math.PI*2);
      ctx.fillStyle=i<5?GOLD:i===5?'#e05c5c':MID;ctx.fill();
      ctx.font='7px "Source Code Pro",monospace';ctx.fillStyle=NAVY;ctx.textAlign='center';
      ctx.fillText(tn==='→'?'⟳':tn,x,y+2.5);
    });
  }
  tick();
}


function animIGT(){
  var t=0,selected=-1,flashTick=0;
  var DECK_COLS=['#e05c5c','#e05c5c','#5b9fda','#5b9fda']; // A,B bad; C,D good
  var DECK_LABELS=['A','B','C','D'];
  var NETS=[-25,-25,+25,+25]; // net per card (scaled)
  var balances=[2000];
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;flashTick++;
    if(flashTick>50){flashTick=0;selected=Math.floor(Math.random()*4);
      var net=NETS[selected]+(Math.random()-0.5)*10;
      balances.push(Math.min(5000,Math.max(0,(balances[balances.length-1]||2000)+net)));
      if(balances.length>20)balances.shift();
    }
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    // Four deck cards
    var dw=56,dh=76,gap=12,ox=(W-4*(dw+gap))/2;
    DECK_LABELS.forEach(function(lbl,i){
      var x=ox+i*(dw+gap),y=H/2-dh/2-8;
      var isSel=i===selected&&flashTick<25;
      ctx.strokeStyle=isSel?DECK_COLS[i]:'rgba(138,180,208,0.25)';
      ctx.lineWidth=isSel?2:1;
      ctx.fillStyle=isSel?'rgba('+[DECK_COLS[i].slice(1).match(/../g).map(function(h){return parseInt(h,16);}).join(',')]+',0.15)':'#0a1620';
      ctx.fillRect(x,y,dw,dh);ctx.strokeRect(x,y,dw,dh);
      ctx.font='bold 20px "Source Code Pro",monospace';
      ctx.fillStyle=isSel?DECK_COLS[i]:'rgba(138,180,208,0.4)';
      ctx.textAlign='center';ctx.fillText(lbl,x+dw/2,y+dh*0.6);
      ctx.font='8px "Source Code Pro",monospace';
      ctx.fillStyle=i<2?'rgba(224,92,92,0.5)':'rgba(91,159,218,0.5)';
      ctx.fillText(i<2?'high risk':'low risk',x+dw/2,y+dh*0.85);
    });
    // Balance sparkline
    if(balances.length>1){
      var sx=10,sy=H-8,sw=W-20,sh=16;
      var mn=Math.min.apply(null,balances),mx=Math.max.apply(null,balances);
      var range=Math.max(mx-mn,500);
      ctx.strokeStyle='rgba(212,180,86,0.5)';ctx.lineWidth=1.5;ctx.beginPath();
      balances.forEach(function(b,i){
        var x=sx+i/(balances.length-1)*sw;
        var y=sy-(b-mn)/range*sh;
        i===0?ctx.moveTo(x,y):ctx.lineTo(x,y);
      });ctx.stroke();
    }
    ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='left';
    ctx.fillText('balance',10,H-22);
  }
  tick();
}


function animTOL(){
  var t=0,phase=0,phaseTick=0;
  var states=[
    {pegs:[['r','g','b'],[],[]], goal:[['b','g','r'],[],[]]},
    {pegs:[['r'],['g'],['b']], goal:[['r','g','b'],[],[]]},
    {pegs:[['g','b'],['r'],[]], goal:[['b'],['g'],['r']]}
  ];
  var si=0;
  function drawMini(ctx,ox,oy,W,H,pegs,label,highlight){
    var pegX=[ox+38,ox+75,ox+112];var pegW=5;var discH=14;var discMaxW=38;
    ctx.fillStyle='rgba(138,180,208,0.15)';ctx.fillRect(ox+6,oy+H-8,W-12,3);
    [3,2,1].forEach(function(cap,pi){
      var ph=cap*discH+10;
      ctx.fillStyle='rgba(138,180,208,0.2)';ctx.fillRect(pegX[pi]-pegW/2,oy+H-8-ph,pegW,ph);
      (pegs[pi]||[]).forEach(function(disc,di){
        var dw=discMaxW-di*4,dy=oy+H-8-discH*(di+1);
        var COL={r:'#e05c5c',g:'#81c784',b:'#5b9fda'};
        ctx.fillStyle=COL[disc]||'#888';ctx.fillRect(pegX[pi]-dw/2,dy,dw,discH-2);
        ctx.strokeStyle='rgba(0,0,0,0.3)';ctx.lineWidth=1;ctx.strokeRect(pegX[pi]-dw/2,dy,dw,discH-2);
      });
    });
    ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';
    ctx.fillText(label,ox+W/2,oy+H+10);
  }
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;phaseTick++;
    if(phaseTick>80){phaseTick=0;si=(si+1)%states.length;}
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var s=states[si];
    drawMini(ctx,10,10,130,80,s.goal,'GOAL',false);
    // Arrow
    ctx.font='16px monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';ctx.fillText('→',W/2,H/2+4);
    drawMini(ctx,W/2+20,10,130,80,s.pegs,'CURRENT',true);
  }
  tick();
}


function animRMET(){
  var t=0,itemIdx=0,phaseTick=0;
  var SAMPLE_EYES=[
    {brow:1,lid:0,pupil:0,wrinkle:false},
    {brow:-1,lid:1,pupil:0,wrinkle:true},
    {brow:0,lid:2,pupil:1,wrinkle:false},
    {brow:0,lid:0,pupil:-1,wrinkle:true}
  ];
  var SAMPLE_WORDS=[['playful','irritated','bored','comforting'],
                   ['worried','arrogant','annoyed','calm'],
                   ['curious','flirtatious','suspicious','aghast'],
                   ['dominant','friendly','guilty','sceptical']];
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;phaseTick++;
    if(phaseTick>90){phaseTick=0;itemIdx=(itemIdx+1)%SAMPLE_EYES.length;}
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    // Mini eye illustration
    var ep=SAMPLE_EYES[itemIdx];
    var cx=W/2-60,cy=H/2-4;
    var EW=72,EH=26;
    // Brow
    var browY=cy-EH/2-12+ep.brow*(-5);
    ctx.beginPath();ctx.moveTo(cx-EW/2,browY+ep.brow*3);
    ctx.quadraticCurveTo(cx,browY-4+ep.brow*3,cx+EW/2,browY+ep.brow*3);
    ctx.strokeStyle='#1a1008';ctx.lineWidth=2.5;ctx.stroke();
    // Sclera
    ctx.beginPath();ctx.ellipse(cx,cy,EW/2,EH/2,0,0,Math.PI*2);
    ctx.fillStyle='rgba(245,240,232,0.9)';ctx.fill();
    ctx.strokeStyle='#1a1008';ctx.lineWidth=1;ctx.stroke();
    // Iris
    var irisR=EH/2*0.72,px=cx+ep.pupil*9;
    ctx.beginPath();ctx.arc(px,cy,irisR,0,Math.PI*2);
    ctx.fillStyle='#4a3828';ctx.fill();
    ctx.beginPath();ctx.arc(px,cy,irisR*0.45,0,Math.PI*2);
    ctx.fillStyle='#0a0806';ctx.fill();
    ctx.beginPath();ctx.arc(px+irisR*0.2,cy-irisR*0.2,irisR*0.12,0,Math.PI*2);
    ctx.fillStyle='rgba(255,255,255,0.85)';ctx.fill();
    // Lid
    var lidDrop=[0,EH*0.25,EH*0.5][ep.lid];
    ctx.beginPath();ctx.moveTo(cx-EW/2,cy-EH/2+lidDrop);
    ctx.quadraticCurveTo(cx,cy-EH/2-5+lidDrop,cx+EW/2,cy-EH/2+lidDrop);
    ctx.lineTo(cx+EW/2,cy-EH/2+14);ctx.quadraticCurveTo(cx,cy-EH/2-8,cx-EW/2,cy-EH/2+14);
    ctx.closePath();ctx.fillStyle=NAVY;ctx.fill();
    ctx.beginPath();ctx.moveTo(cx-EW/2,cy-EH/2+lidDrop);
    ctx.quadraticCurveTo(cx,cy-EH/2-6+lidDrop,cx+EW/2,cy-EH/2+lidDrop);
    ctx.strokeStyle='#1a1008';ctx.lineWidth=2;ctx.stroke();

    // Options
    var words=SAMPLE_WORDS[itemIdx];
    words.forEach(function(w,i){
      var x=W/2+20,y=16+i*22;
      ctx.font=(i===0?'bold ':'')+'11px "EB Garamond",serif';
      ctx.fillStyle=i===0?GOLD:MID;ctx.textAlign='left';
      ctx.fillText((i===0?'▶ ':'   ')+w,x,y);
    });
  }
  tick();
}


function animP1N1(){
  var t=0,phase=0,phaseTick=0,stimSide=0,showStim=false;
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;phaseTick++;
    if(phaseTick>35){phaseTick=0;stimSide=1-stimSide;showStim=true;}
    if(phaseTick>8&&showStim){showStim=false;}
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var cx=W/2,cy=H/2;
    // Fixation = the directional cue arrow only (no cross), matching the task.
    cognosDrawArrow(ctx, cx, cy, 30, 'left', {color:'rgba(212,180,86,0.85)'});
    // Left stimulus box
    var lx=cx-110,rx=cx+80,sy=cy-20,sw=44,sh=44;
    [lx,rx].forEach(function(sx,si){
      var isStim=showStim&&si===stimSide;
      var isAttended=si===0; // attend left
      ctx.strokeStyle=isStim?(isAttended?GOLD:'rgba(138,180,208,0.5)'):'rgba(138,180,208,0.2)';
      ctx.lineWidth=isStim?2:1;
      ctx.fillStyle=isStim?(isAttended?'rgba(212,180,86,0.25)':'rgba(138,180,208,0.15)'):'#060d14';
      ctx.fillRect(sx,sy,sw,sh);ctx.strokeRect(sx,sy,sw,sh);
    });
    // ERP traces below
    var tw=W*0.35,ty=H-28;
    ['P1','N1'].forEach(function(comp,ci){
      var ox=ci===0?cx-tw-20:cx+20;
      ctx.strokeStyle=ci===0?GOLD:'rgba(91,159,218,0.8)';ctx.lineWidth=1.5;
      ctx.beginPath();
      for(var x=0;x<tw;x++){
        var ms=(x/tw)*300;
        var p1=ci===0?22*Math.exp(-0.5*Math.pow((ms-100)/20,2)):0;
        var n1=ci===1?-24*Math.exp(-0.5*Math.pow((ms-160)/25,2)):0;
        ctx.lineTo(ox+x,ty-(p1+n1)*0.55);
      }
      ctx.stroke();
      ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=ci===0?GOLD:'rgba(91,159,218,0.8)';
      ctx.textAlign='center';ctx.fillText(comp,ox+tw*(ci===0?0.38:0.58),ty-(ci===0?16:-18));
    });
    ctx.strokeStyle='rgba(138,180,208,0.12)';ctx.lineWidth=0.5;
    ctx.beginPath();ctx.moveTo(cx-tw-20,ty);ctx.lineTo(cx+20+tw,ty);ctx.stroke();
  }
  tick();
}


function animCNVW(){
  var t=0,phase=0,phaseTick=0;
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;phaseTick++;
    if(phaseTick>80){phaseTick=0;phase=(phase+1)%3;}
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var cy=H/2,tw=W*0.75,tx=(W-tw)/2;
    // Zero line
    ctx.strokeStyle='rgba(138,180,208,0.12)';ctx.lineWidth=0.5;
    ctx.beginPath();ctx.moveTo(tx,cy);ctx.lineTo(tx+tw,cy);ctx.stroke();
    // S1 marker
    var s1x=tx+tw*0.1;
    ctx.strokeStyle='rgba(212,180,86,0.4)';ctx.lineWidth=1;
    ctx.beginPath();ctx.moveTo(s1x,cy-32);ctx.lineTo(s1x,cy+10);ctx.stroke();
    ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='rgba(212,180,86,0.6)';ctx.textAlign='center';ctx.fillText('S1',s1x,cy-36);
    // S2 marker
    var s2x=tx+tw*0.7;
    ctx.strokeStyle='rgba(91,159,218,0.4)';ctx.lineWidth=1;
    ctx.beginPath();ctx.moveTo(s2x,cy-32);ctx.lineTo(s2x,cy+10);ctx.stroke();
    ctx.fillStyle='rgba(91,159,218,0.6)';ctx.fillText('S2',s2x,cy-36);
    // CNV waveform
    ctx.strokeStyle=GOLD;ctx.lineWidth=2;ctx.beginPath();
    for(var x=0;x<tw;x++){
      var t2=x/tw;
      var cnv=t2>0.1&&t2<0.7?-28*(t2-0.1)/(0.6):0;
      var resp=t2>0.7?28*(1-Math.exp(-(t2-0.7)*8)):0;
      ctx.lineTo(tx+x,cy+cnv+resp);
    }ctx.stroke();
    // Labels
    ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=GOLD;ctx.textAlign='center';
    ctx.fillText('CNV',tx+tw*0.4,cy-22);
    ctx.fillStyle=MID;ctx.fillText('1000ms foreperiod',tx+tw*0.4,H-6);
  }
  tick();
}

function animTHALPHA(){
  var t=0,phase=0,phaseTick=0;
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;phaseTick++;
    if(phaseTick>70){phaseTick=0;phase=(phase+1)%2;}
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var isOpen=phase===0;
    var cy=H/2+5,tw=W*0.6,tx=(W-tw)/2;
    // State label
    ctx.font='bold 10px "Source Code Pro",monospace';ctx.fillStyle=isOpen?GOLD:'rgba(91,159,218,0.8)';
    ctx.textAlign='center';ctx.fillText(isOpen?'EYES OPEN':'EYES CLOSED',W/2,18);
    // Zero line
    ctx.strokeStyle='rgba(138,180,208,0.1)';ctx.lineWidth=0.5;
    ctx.beginPath();ctx.moveTo(tx,cy);ctx.lineTo(tx+tw,cy);ctx.stroke();
    // Alpha wave (larger when EC) + theta
    ctx.strokeStyle=isOpen?'rgba(212,180,86,0.5)':GOLD;ctx.lineWidth=1.5;ctx.beginPath();
    var alphaAmp=isOpen?8:28,alphaFreq=10;
    for(var x=0;x<tw;x++){
      var ms=x/tw*500;
      var alpha=alphaAmp*Math.sin(ms*alphaFreq*2*Math.PI/1000);
      var theta=(isOpen?12:5)*Math.sin(ms*6*2*Math.PI/1000);
      ctx.lineTo(tx+x,cy-(alpha+theta));
    }ctx.stroke();
    // Spectral hint
    ctx.font='8px "Source Code Pro",monospace';ctx.textAlign='left';
    ctx.fillStyle=GOLD;ctx.fillText('α '+(isOpen?'suppressed':'dominant'),tx,H-6);
    ctx.fillStyle=MID;ctx.fillText('θ frontal',tx+tw*0.6,H-6);
  }
  tick();
}


function animN1P2(){
  var t=0,flash=false;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%45===0)flash=true;if(t%45===8)flash=false;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    // Waveform: N1 trough then P2 peak
    var cx=W/2,base=H/2+10;
    ctx.beginPath();ctx.moveTo(20,base);
    for(var x=0;x<W-40;x++){
      var t2=x/(W-40);
      var n1=flash?-28*Math.exp(-Math.pow((t2-0.28)*8,2)):0;
      var p2=flash?18*Math.exp(-Math.pow((t2-0.52)*7,2)):0;
      ctx.lineTo(20+x, base+n1+p2);
    }
    ctx.strokeStyle=flash?GOLD:'rgba(212,180,86,0.3)';ctx.lineWidth=2;ctx.stroke();
    if(flash){
      ctx.fillStyle='rgba(212,180,86,0.7)';ctx.font='9px "Source Code Pro",monospace';ctx.textAlign='center';
      ctx.fillText('N1 ~100ms',W*0.35,base-32);ctx.fillText('P2 ~200ms',W*0.58,base+26);
    }
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('N1-P2 auditory ERP',W/2,H-8);
  })();
}
function animRON(){
  var t=0,phase=0;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;if(t%80===0)phase=(phase+1)%3;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var cx=W/2,base=H/2+8;
    // Draw three-wave sequence: MMN, P3a, RON
    var labels=[['MMN','~150ms'],['P3a','~300ms'],['RON','~500ms']];
    var cols=['rgba(91,159,218,0.8)','rgba(138,180,208,0.6)','rgba(212,180,86,0.9)'];
    var peaks=[0.22,0.45,0.72];var amps=[-18,14,-14];
    ctx.beginPath();ctx.moveTo(20,base);
    for(var x=0;x<W-40;x++){var tx=x/(W-40);var y=0;
      peaks.forEach(function(pk,i){y+=amps[i]*Math.exp(-Math.pow((tx-pk)*9,2));});
      ctx.lineTo(20+x,base+y);}
    ctx.strokeStyle=GOLD;ctx.lineWidth=2;ctx.stroke();
    labels.forEach(function(lb,i){
      var px=20+(peaks[i]*(W-40));var py=base+amps[i]-6;
      ctx.fillStyle=i===2?GOLD:cols[i];ctx.font='8px "Source Code Pro",monospace';ctx.textAlign='center';
      ctx.fillText(lb[0],px,py);ctx.fillText(lb[1],px,py+10);
    });
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('reorienting negativity',W/2,H-8);
  })();
}
function animLAN(){
  var t=0,flash=false,sent=['The girl walk home.','The boys runs fast.','She read novels.'];var si=0;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%90===0){flash=true;si=(si+1)%sent.length;}if(t%90===20)flash=false;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.font='12px "EB Garamond",serif';ctx.textAlign='center';ctx.fillStyle=flash?GOLD:MID;ctx.fillText(sent[si],W/2,H/2-14);
    if(flash){ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle='#e05c5c';ctx.fillText('agreement violation',W/2,H/2+4);}
    var base=H/2+28;ctx.beginPath();ctx.moveTo(20,base);
    for(var x=0;x<W-40;x++){var tx=x/(W-40);var lan=flash?-16*Math.exp(-Math.pow((tx-0.38)*7,2)):0;ctx.lineTo(20+x,base+lan);}
    ctx.strokeStyle=flash?'rgba(212,180,86,0.8)':'rgba(212,180,86,0.2)';ctx.lineWidth=2;ctx.stroke();
    if(flash){ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='rgba(212,180,86,0.7)';ctx.fillText('LAN ~350ms left frontal',W/2,base-20);}
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('left anterior negativity',W/2,H-8);
  })();
}
function animCPS(){
  var t=0,flash=false,boundary=false;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%80===0){flash=true;boundary=!boundary;}if(t%80===16)flash=false;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.font='11px "EB Garamond",serif';ctx.textAlign='center';ctx.fillStyle=MID;
    ctx.fillText('When the sun sets',W/2,H/2-20);
    if(boundary){ctx.fillStyle=GOLD;ctx.fillText('/',W/2,H/2-4);ctx.fillStyle=MID;}
    ctx.fillText('the sky turns orange.',W/2,H/2+14);
    // CPS waveform
    var base=H/2+42;ctx.beginPath();ctx.moveTo(20,base);
    for(var x=0;x<W-40;x++){var tx=x/(W-40);var cps=flash?12*Math.exp(-Math.pow((tx-0.45)*5,2)):0;ctx.lineTo(20+x,base-cps);}
    ctx.strokeStyle=flash?GOLD:'rgba(212,180,86,0.2)';ctx.lineWidth=2;ctx.stroke();
    if(flash){ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='rgba(212,180,86,0.7)';ctx.fillText('CPS ~300ms at boundary',W/2,base-16);}
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('closure positive shift',W/2,H-8);
  })();
}
function animN2B(){
  var t=0,letter='',flash=false;var lets='ABCXDEXFX'.split('');var li=0;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%30===0){li=(li+1)%lets.length;letter=lets[li];flash=letter==='X';}
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.textAlign='center';ctx.font='bold 54px "Source Code Pro",monospace';
    ctx.fillStyle=flash?GOLD:'rgba(138,180,208,0.5)';ctx.fillText(letter,W/2,H/2+18);
    var base=H/2+42;ctx.beginPath();ctx.moveTo(20,base);
    for(var x=0;x<W-40;x++){var tx=x/(W-40);var n2b=flash?-16*Math.exp(-Math.pow((tx-0.32)*8,2)):0;var p3=flash?22*Math.exp(-Math.pow((tx-0.55)*6,2)):0;ctx.lineTo(20+x,base+n2b+p3);}
    ctx.strokeStyle=flash?GOLD:'rgba(212,180,86,0.2)';ctx.lineWidth=2;ctx.stroke();
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('N2b target ERP',W/2,H-8);
  })();
}
function animPD(){
  var t=0,flash=false,distPos=0;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%60===0){flash=true;distPos=Math.floor(Math.random()*8);}if(t%60===12)flash=false;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var cx=W/2,cy=H/2;
    for(var i=0;i<8;i++){var a=i*Math.PI/4-Math.PI/2;var px=cx+Math.cos(a)*52,py=cy+Math.sin(a)*52;
      ctx.save();ctx.translate(px,py);
      if(i===0){ctx.rotate(0.4);ctx.strokeStyle=GOLD;ctx.lineWidth=2;ctx.strokeRect(-8,-8,16,16);}
      else if(flash&&i===distPos){ctx.beginPath();ctx.arc(0,0,7,0,Math.PI*2);ctx.fillStyle='rgba(224,92,92,0.8)';ctx.fill();}
      else{ctx.beginPath();ctx.arc(0,0,7,0,Math.PI*2);ctx.strokeStyle='rgba(138,180,208,0.4)';ctx.lineWidth=1.5;ctx.stroke();}
      ctx.restore();
    }
    if(flash){var base=cy+70;ctx.beginPath();ctx.moveTo(20,base);for(var x=0;x<W-40;x++){var tx=x/(W-40);var pd=12*Math.exp(-Math.pow((tx-0.38)*8,2));ctx.lineTo(20+x,base-pd);}ctx.strokeStyle='rgba(212,180,86,0.7)';ctx.lineWidth=2;ctx.stroke();ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='rgba(212,180,86,0.6)';ctx.textAlign='center';ctx.fillText('Pd contralateral to distractor',W/2,base-16);}
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('distractor positivity (Pd)',W/2,H-8);
  })();
}
function animERAN(){
  var t=0,flash=false,irregular=false;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%90===0){flash=true;irregular=Math.random()<0.4;}if(t%90===18)flash=false;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var chords=['I','IV','V',irregular?'bII':'I'];var cx=W/2-((chords.length-1)*28);
    chords.forEach(function(ch,i){
      var x=cx+i*56,y=H/2-6;var isLast=i===chords.length-1;
      ctx.fillStyle=isLast?(irregular?'rgba(224,92,92,0.8)':GOLD):'rgba(138,180,208,0.5)';
      ctx.font=(isLast?'bold ':'')+' 13px "Source Code Pro",monospace';ctx.textAlign='center';ctx.fillText(ch,x,y);
      if(i<chords.length-1){ctx.fillStyle='rgba(138,180,208,0.3)';ctx.fillText('→',x+28,y);}
    });
    if(flash&&irregular){ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='#e05c5c';ctx.textAlign='center';ctx.fillText('music-syntactic violation',W/2,H/2+10);}
    var base=H/2+34;ctx.beginPath();ctx.moveTo(20,base);
    for(var x2=0;x2<W-40;x2++){var tx=x2/(W-40);var eran=flash&&irregular?-14*Math.exp(-Math.pow((tx-0.28)*9,2)):0;ctx.lineTo(20+x2,base+eran);}
    ctx.strokeStyle=flash&&irregular?'rgba(212,180,86,0.8)':'rgba(212,180,86,0.2)';ctx.lineWidth=2;ctx.stroke();
    if(flash&&irregular){ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='rgba(212,180,86,0.6)';ctx.textAlign='center';ctx.fillText('ERAN ~175ms right anterior',W/2,base-18);}
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('early right anterior negativity',W/2,H-8);
  })();
}
function animLPC(){
  var t=0,flash=false;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%70===0)flash=true;if(t%70===16)flash=false;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.textAlign='center';ctx.font='20px "EB Garamond",serif';
    ctx.fillStyle=flash?GOLD:MID;ctx.fillText(flash?'ANCHOR':'anchor',W/2,H/2-8);
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.fillText(flash?'OLD':'NEW?',W/2,H/2+10);
    var base=H/2+36;ctx.beginPath();ctx.moveTo(20,base);
    for(var x=0;x<W-40;x++){var tx=x/(W-40);var lpc=flash?18*Math.exp(-Math.pow((tx-0.62)*4,2)):0;ctx.lineTo(20+x,base-lpc);}
    ctx.strokeStyle=flash?GOLD:'rgba(212,180,86,0.2)';ctx.lineWidth=2;ctx.stroke();
    if(flash){ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='rgba(212,180,86,0.7)';ctx.fillText('LPC ~600ms parietal (recollection)',W/2,base-22);}
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.fillText('late positive component',W/2,H-8);
  })();
}
function animFRN(){
  var t=0,outcome=null;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%80===0)outcome=Math.random()<0.5?'win':'loss';if(t%80===24)outcome=null;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.textAlign='center';
    if(outcome){ctx.font='bold 22px "Source Code Pro",monospace';ctx.fillStyle=outcome==='win'?'#81c784':'#e05c5c';ctx.fillText(outcome==='win'?'+10 WIN':'-10 LOSS',W/2,H/2-6);}
    else{ctx.font='14px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.fillText('DECK A   DECK B',W/2,H/2-6);}
    var base=H/2+36;ctx.beginPath();ctx.moveTo(20,base);
    for(var x=0;x<W-40;x++){var tx=x/(W-40);var frn=outcome==='loss'?-18*Math.exp(-Math.pow((tx-0.28)*9,2)):0;ctx.lineTo(20+x,base+frn);}
    ctx.strokeStyle=outcome==='loss'?'rgba(212,180,86,0.8)':'rgba(212,180,86,0.2)';ctx.lineWidth=2;ctx.stroke();
    if(outcome==='loss'){ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='rgba(212,180,86,0.7)';ctx.fillText('FRN ~250ms Fz — loss > win',W/2,base-22);}
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.fillText('feedback-related negativity',W/2,H-8);
  })();
}
function animCDA(){
  var t=0,phase=0,colours=['#e05c5c','#5b9fda','#81c784'];
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;if(t%120===0)phase=(phase+1)%3;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.strokeStyle='rgba(138,180,208,0.2)';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(W/2,0);ctx.lineTo(W/2,H);ctx.stroke();
    if(phase===0){colours.forEach(function(c,i){ctx.fillStyle=c;ctx.fillRect(22+i*36,H/2-18,28,28);});}
    else if(phase===2){colours.forEach(function(c,i){ctx.fillStyle=c;ctx.fillRect(22+i*36,H/2-18,28,28);});}
    if(phase===0||phase===2){ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='left';ctx.fillText(phase===0?'STUDY':'TEST',8,H/2-24);}
    if(phase===1){ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle='rgba(212,180,86,0.6)';ctx.textAlign='center';ctx.fillText('DELAY — CDA sustained',W/2,H/2+6);}
    var base=H-26;if(phase===1){ctx.beginPath();ctx.moveTo(20,base);for(var x=0;x<W-40;x++)ctx.lineTo(20+x,base-8);ctx.strokeStyle='rgba(212,180,86,0.6)';ctx.lineWidth=2;ctx.stroke();}
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('contralateral delay activity',W/2,H-8);
  })();
}
function animLDAEP(){
  var t=0,level=1;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;if(t%40===0)level=1+Math.floor(Math.random()*5);
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    // Show 5 intensity bars
    var cx=W/2,by=H/2-20;
    for(var i=0;i<5;i++){var bh=(i+1)*8;var bx=cx-32+i*16;ctx.fillStyle=i<level?'rgba(212,180,86,0.7)':'rgba(212,180,86,0.15)';ctx.fillRect(bx,by-bh,12,bh);}
    // Show scaled N1-P2 waveform
    var base=H/2+28;ctx.beginPath();ctx.moveTo(20,base);
    var amp=level*8;
    for(var x=0;x<W-40;x++){var tx=x/(W-40);var n1=-amp*Math.exp(-Math.pow((tx-0.28)*8,2));var p2=amp*0.7*Math.exp(-Math.pow((tx-0.52)*7,2));ctx.lineTo(20+x,base+n1+p2);}
    ctx.strokeStyle='rgba(212,180,86,0.8)';ctx.lineWidth=2;ctx.stroke();
    ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('N1/P2 amplitude grows with intensity',W/2,H/2+50);
    ctx.font='9px "Source Code Pro",monospace';ctx.fillText('loudness dependence (LDAEP)',W/2,H-8);
  })();
}function animC1(){
  var t=0,field=null,polarity=1;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%55===0){field=Math.random()<0.5?'upper':'lower';polarity=field==='upper'?-1:1;}
    if(t%55===12)field=null;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var cx=W/2,cy=H/2;
    // Fixation
    ctx.strokeStyle='rgba(138,180,208,0.5)';ctx.lineWidth=2;ctx.beginPath();ctx.moveTo(cx-6,cy);ctx.lineTo(cx+6,cy);ctx.moveTo(cx,cy-6);ctx.lineTo(cx,cy+6);ctx.stroke();
    // Stimulus
    if(field){var py=field==='upper'?cy-50:cy+50;ctx.fillStyle='rgba(255,255,255,0.6)';ctx.beginPath();ctx.arc(cx,py,15,0,Math.PI*2);ctx.fill();
      // Waveform
      var base=cy+30;ctx.beginPath();ctx.moveTo(20,base);for(var x=0;x<W-40;x++){var tx=x/(W-40);var c1w=polarity*14*Math.exp(-Math.pow((tx-0.22)*11,2));ctx.lineTo(20+x,base+c1w);}
      ctx.strokeStyle=GOLD;ctx.lineWidth=2;ctx.stroke();
      ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='rgba(212,180,86,0.7)';ctx.textAlign='center';
      ctx.fillText('C1 ~70ms — '+(field==='upper'?'NEG (upper)':'POS (lower)'),W/2,base+(polarity*-18));
    }
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('C1 first cortical visual response',W/2,H-8);
  })();
}
function animPMN(){
  var t=0,flash=false,phon=false;
  var words=[['medicine','blankets'],['exam','test'],['plants','garden']];var wi=0;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%80===0){flash=true;phon=!phon;wi=(wi+1)%words.length;}if(t%80===18)flash=false;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.textAlign='center';ctx.font='10px "EB Garamond",serif';ctx.fillStyle=MID;
    ctx.fillText('The nurse gave the patient some',W/2,H/2-22);
    if(flash){ctx.font='bold 14px "EB Garamond",serif';ctx.fillStyle=phon?'rgba(212,180,86,0.5)':GOLD;ctx.fillText(words[wi][phon?1:0].toUpperCase(),W/2,H/2-2);}
    if(flash&&phon){ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='rgba(212,180,86,0.4)';ctx.fillText('phon. mismatch',W/2,H/2+14);}
    var base=H/2+34;ctx.beginPath();ctx.moveTo(20,base);
    for(var x=0;x<W-40;x++){var tx=x/(W-40);var pmn=flash&&phon?-13*Math.exp(-Math.pow((tx-0.3)*9,2)):0;ctx.lineTo(20+x,base+pmn);}
    ctx.strokeStyle=flash&&phon?GOLD:'rgba(212,180,86,0.2)';ctx.lineWidth=2;ctx.stroke();
    if(flash&&phon){ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='rgba(212,180,86,0.6)';ctx.fillText('PMN ~270ms left-anterior',W/2,base-16);}
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.fillText('phonological mismatch negativity',W/2,H-8);
  })();
}
function animVPP(){
  var t=0,isFace=true;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;if(t%70===0)isFace=!isFace;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var cx=W/2,cy=H/2-10;
    if(isFace){
      ctx.beginPath();ctx.ellipse(cx,cy,28,34,0,0,Math.PI*2);ctx.strokeStyle='rgba(212,180,86,0.7)';ctx.lineWidth=1.5;ctx.stroke();
      [[cx-10,cy-9],[cx+10,cy-9]].forEach(function(p){ctx.beginPath();ctx.ellipse(p[0],p[1],5,3,0,0,Math.PI*2);ctx.stroke();});
      ctx.beginPath();ctx.arc(cx,cy+10,8,0.2,Math.PI-0.2);ctx.stroke();
    } else {
      ctx.strokeStyle='rgba(138,180,208,0.5)';ctx.lineWidth=1.5;ctx.strokeRect(cx-26,cy-26,52,52);
    }
    // VPP waveform (positive at Cz for faces)
    var base=cy+50;ctx.beginPath();ctx.moveTo(20,base);
    for(var x=0;x<W-40;x++){var tx=x/(W-40);var vpp=isFace?16*Math.exp(-Math.pow((tx-0.38)*8,2)):4*Math.exp(-Math.pow((tx-0.38)*8,2));ctx.lineTo(20+x,base-vpp);}
    ctx.strokeStyle=isFace?GOLD:'rgba(212,180,86,0.25)';ctx.lineWidth=2;ctx.stroke();
    if(isFace){ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='rgba(212,180,86,0.7)';ctx.textAlign='center';ctx.fillText('VPP ~170ms Cz (face > object)',W/2,base-20);}
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('vertex positive potential',W/2,H-8);
  })();
}
function animPE(){
  var t=0,flash=false,isError=false;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%65===0){flash=true;isError=Math.random()<0.35;}if(t%65===14)flash=false;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.textAlign='center';ctx.font='18px "Source Code Pro",monospace';
    ctx.fillStyle=flash?(isError?'#e05c5c':GOLD):MID;
    ctx.fillText(isError?'← ← → ← ←':'→ → → → →',W/2,H/2-10);
    var base=H/2+26;ctx.beginPath();ctx.moveTo(20,base);
    for(var x=0;x<W-40;x++){var tx=x/(W-40);
      var ern=flash&&isError?-16*Math.exp(-Math.pow((tx-0.18)*11,2)):0;
      var pe=flash&&isError?18*Math.exp(-Math.pow((tx-0.42)*7,2)):0;
      ctx.lineTo(20+x,base+ern+pe);}
    ctx.strokeStyle=flash&&isError?'rgba(212,180,86,0.8)':'rgba(212,180,86,0.2)';ctx.lineWidth=2;ctx.stroke();
    if(flash&&isError){ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='rgba(212,180,86,0.7)';ctx.fillText('ERN → Pe (conscious awareness)',W/2,base-22);}
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.fillText('error positivity (Pe)',W/2,H-8);
  })();
}
function animORN(){
  var t=0,seg=false;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;if(t%75===0)seg=!seg;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var cx=W/2,cy=H/2-10;
    if(seg){
      ctx.beginPath();ctx.arc(cx-22,cy,16,0,Math.PI*2);ctx.strokeStyle=GOLD;ctx.lineWidth=2;ctx.stroke();
      ctx.beginPath();ctx.arc(cx+22,cy,16,0,Math.PI*2);ctx.strokeStyle='rgba(224,92,92,0.7)';ctx.stroke();
      ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('440 Hz   687 Hz',cx,cy+30);
    } else {
      ctx.beginPath();ctx.arc(cx,cy,22,0,Math.PI*2);ctx.strokeStyle='rgba(138,180,208,0.6)';ctx.lineWidth=2;ctx.stroke();
      ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('440 + 660 Hz (fused)',cx,cy+32);
    }
    var base=cy+50;ctx.beginPath();ctx.moveTo(20,base);
    for(var x=0;x<W-40;x++){var tx=x/(W-40);var orn=seg?-14*Math.exp(-Math.pow((tx-0.26)*10,2)):0;ctx.lineTo(20+x,base+orn);}
    ctx.strokeStyle=seg?GOLD:'rgba(212,180,86,0.2)';ctx.lineWidth=2;ctx.stroke();
    if(seg){ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='rgba(212,180,86,0.7)';ctx.textAlign='center';ctx.fillText('ORN ~175ms — stream segregation',W/2,base-18);}
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('object-related negativity',W/2,H-8);
  })();
}
function animMFN(){
  var t=0,inc=false,word='RED',ink='red';var pairs=[['RED','red',true],['BLUE','blue',true],['RED','blue',false],['BLUE','red',false]];var pi=0;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%55===0){pi=(pi+1)%pairs.length;word=pairs[pi][0];ink=pairs[pi][1];inc=!pairs[pi][2];}
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.textAlign='center';ctx.font='bold 26px "Source Code Pro",monospace';
    ctx.fillStyle=ink==='red'?'#e05c5c':'#5b9fda';ctx.fillText(word,W/2,H/2-4);
    var base=H/2+30;ctx.beginPath();ctx.moveTo(20,base);
    for(var x=0;x<W-40;x++){var tx=x/(W-40);var mfn=inc?-14*Math.exp(-Math.pow((tx-0.3)*9,2)):0;ctx.lineTo(20+x,base+mfn);}
    ctx.strokeStyle=inc?GOLD:'rgba(212,180,86,0.2)';ctx.lineWidth=2;ctx.stroke();
    if(inc){ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='rgba(212,180,86,0.7)';ctx.fillText('MFN ~270ms FCz — conflict',W/2,base-18);}
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.fillText('medial frontal negativity',W/2,H-8);
  })();
}
  // Expose anim functions to window for ANIM_MAP access
  window.animP50 = animP50;
  window.animN100 = animN100;
  window.animSCP = animSCP;
  window.animP3A = animP3A;
  window.animASSR = animASSR;
  window.animCPT = animCPT;
  window.animEmotStroop = animEmotStroop;
  window.animTaskSwitch = animTaskSwitch;
  window.animDualTask = animDualTask;

// ══ ANIM — new batch ══════════════════════════════════════
function animSART(){
  var digit=1,tick=0,show=true;
  (function loop(){
    animRAF=requestAnimationFrame(loop);tick++;
    if(tick%20===0){show=!show;if(!show)digit=Math.random()<0.15?3:(1+Math.floor(Math.random()*8));}
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.textAlign='center';ctx.font='bold 54px "Source Code Pro",monospace';
    if(show){ctx.fillStyle=digit===3?'#e05c5c':GOLD;ctx.fillText(digit,W/2,H/2+18);}
    else{ctx.fillStyle='rgba(138,180,208,0.2)';ctx.fillText('#',W/2,H/2+18);}
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.fillText('SPACE for all except 3',W/2,H-8);
  })();
}
window.animSART=animSART;

function animUFOV(){
  var t=0,periAngle=0,showPeri=false,isCar=true;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%50===0){periAngle=Math.floor(Math.random()*8)*45;showPeri=true;isCar=!isCar;}
    if(t%60===0)showPeri=false;
    var ctx=getCtx();if(!ctx)return;
    var cx=W/2,cy=H/2;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.strokeStyle='rgba(138,180,208,0.25)';ctx.lineWidth=1;
    ctx.beginPath();ctx.moveTo(cx-8,cy);ctx.lineTo(cx+8,cy);ctx.stroke();
    ctx.beginPath();ctx.moveTo(cx,cy-8);ctx.lineTo(cx,cy+8);ctx.stroke();
    // central object alternates car / truck (compact preview version)
    var body='#f5f0e8',glass='#3b6ea5',tire='#cdd6df',wheel='#11202c';
    if(isCar){
      var x=cx-26,y=cy-1,w=52,h=10;
      ctx.fillStyle=body;ctx.beginPath();
      ctx.moveTo(x,y+h);ctx.lineTo(x,y+2);ctx.lineTo(x+10,y+2);ctx.lineTo(x+17,y-9);
      ctx.lineTo(x+36,y-9);ctx.lineTo(x+42,y+2);ctx.lineTo(x+w,y+2);ctx.lineTo(x+w,y+h);ctx.closePath();ctx.fill();
      ctx.fillStyle=glass;ctx.beginPath();ctx.moveTo(x+17,y-6);ctx.lineTo(x+35,y-6);ctx.lineTo(x+39,y+1);ctx.lineTo(x+14,y+1);ctx.closePath();ctx.fill();
      ctx.fillStyle=tire;ctx.beginPath();ctx.arc(x+14,y+h,5,0,Math.PI*2);ctx.fill();ctx.beginPath();ctx.arc(x+w-12,y+h,5,0,Math.PI*2);ctx.fill();
      ctx.fillStyle=wheel;ctx.beginPath();ctx.arc(x+14,y+h,2,0,Math.PI*2);ctx.fill();ctx.beginPath();ctx.arc(x+w-12,y+h,2,0,Math.PI*2);ctx.fill();
    } else {
      var bx=cx-30,by=cy-1,bw=60,bh=12;
      ctx.fillStyle=body;ctx.fillRect(bx,by-13,38,bh+13);ctx.fillRect(bx+40,by-6,20,bh+6);
      ctx.fillStyle=glass;ctx.fillRect(bx+47,by-3,11,7);
      ctx.fillStyle=tire;[bx+10,bx+26,bx+50].forEach(function(wx){ctx.beginPath();ctx.arc(wx,by+bh,5,0,Math.PI*2);ctx.fill();});
      ctx.fillStyle=wheel;[bx+10,bx+26,bx+50].forEach(function(wx){ctx.beginPath();ctx.arc(wx,by+bh,2,0,Math.PI*2);ctx.fill();});
    }
    if(showPeri){var rad=periAngle*Math.PI/180,r=90;ctx.fillStyle='rgba(212,180,86,0.85)';ctx.beginPath();ctx.arc(cx+Math.cos(rad)*r,cy+Math.sin(rad)*r,7,0,Math.PI*2);ctx.fill();}
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('car or truck + peripheral flash',W/2,H-8);
  })();
}
window.animUFOV=animUFOV;

function animPAL(){
  var t=0,pairs=[['apple','doctor'],['river','candle'],['stone','justice']],pi=0,phase='show';
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%60===0){pi=(pi+1)%pairs.length;phase=phase==='show'?'cue':'show';}
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.textAlign='center';ctx.font='16px "EB Garamond",serif';
    if(phase==='show'){ctx.fillStyle=GOLD;ctx.fillText(pairs[pi][0].toUpperCase()+' — '+pairs[pi][1].toUpperCase(),W/2,H/2+6);}
    else{ctx.fillStyle=MID;ctx.fillText(pairs[pi][0].toUpperCase()+' — ?',W/2,H/2+6);}
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.fillText('paired associate learning',W/2,H-8);
  })();
}
window.animPAL=animPAL;

function animSrcMem(){
  var t=0,word='HARBOR',side='left',phase='study';
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%80===0){var ws=['harbor','temple','raven','lantern'];word=ws[Math.floor(Math.random()*ws.length)];side=Math.random()<0.5?'left':'right';phase=t%160<80?'study':'test';}
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var bw=90,bh=36,gap=20,by=H/2-bh/2;
    var lx=W/2-bw-gap/2,rx=W/2+gap/2;
    ctx.strokeStyle='rgba(138,180,208,0.3)';ctx.lineWidth=1;ctx.strokeRect(lx,by,bw,bh);ctx.strokeRect(rx,by,bw,bh);
    ctx.font='13px "EB Garamond",serif';ctx.textAlign='center';
    if(phase==='study'){ctx.fillStyle=side==='left'?GOLD:MID;ctx.fillText(side==='left'?word.toUpperCase():'',lx+bw/2,by+bh/2+5);ctx.fillStyle=side==='right'?GOLD:MID;ctx.fillText(side==='right'?word.toUpperCase():'',rx+bw/2,by+bh/2+5);}
    else{ctx.fillStyle=MID;ctx.fillText(word.toUpperCase(),lx+bw/2,by+bh/2+5);ctx.fillText(word.toUpperCase(),rx+bw/2,by+bh/2+5);}
    ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='rgba(138,180,208,0.4)';ctx.fillText('LEFT',lx+bw/2,by+bh+14);ctx.fillText('RIGHT',rx+bw/2,by+bh+14);
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.fillText('source memory',W/2,H-8);
  })();
}
window.animSrcMem=animSrcMem;

function animBNT(){
  var t=0,shape=0,shapes=['bed','tree','pencil','house'];
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%90===0)shape=(shape+1)%shapes.length;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var cx=W/2,cy=H/2;
    ctx.fillStyle='rgba(245,240,232,0.9)';ctx.strokeStyle='rgba(42,26,10,0.8)';ctx.lineWidth=1.5;
    var s=shapes[shape];
    if(s==='bed'){ctx.fillStyle='rgba(139,115,85,0.7)';ctx.fillRect(cx-30,cy,60,22);ctx.fillRect(cx-36,cy-8,14,30);ctx.fillRect(cx+22,cy-8,14,30);}
    else if(s==='tree'){ctx.fillStyle='rgba(58,107,53,0.8)';ctx.beginPath();ctx.moveTo(cx,cy-30);ctx.lineTo(cx-24,cy+12);ctx.lineTo(cx+24,cy+12);ctx.closePath();ctx.fill();ctx.fillStyle='rgba(92,61,30,0.8)';ctx.fillRect(cx-4,cy+12,8,18);}
    else if(s==='pencil'){ctx.fillStyle='rgba(245,200,66,0.8)';ctx.fillRect(cx-8,cy-22,16,44);ctx.fillStyle='rgba(245,240,232,0.9)';ctx.beginPath();ctx.moveTo(cx-8,cy+22);ctx.lineTo(cx,cy+34);ctx.lineTo(cx+8,cy+22);ctx.fill();}
    else if(s==='house'){ctx.fillStyle='rgba(200,80,60,0.8)';ctx.beginPath();ctx.moveTo(cx,cy-28);ctx.lineTo(cx-28,cy-8);ctx.lineTo(cx+28,cy-8);ctx.closePath();ctx.fill();ctx.fillStyle='rgba(212,180,86,0.7)';ctx.fillRect(cx-24,cy-8,48,30);}
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('boston naming test',W/2,H-8);
  })();
}
window.animBNT=animBNT;

function animFER(){
  var t=0,emo=0,emotions=['happy','sad','angry','surprised'];
  var configs={happy:{brow:0,mouth:1},sad:{brow:-1,mouth:-1},angry:{brow:-2,mouth:-1},surprised:{brow:2,mouth:2}};
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%70===0)emo=(emo+1)%emotions.length;
    var ctx=getCtx();if(!ctx)return;
    var cx=W/2,cy=H/2-4,cfg=configs[emotions[emo]];
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.fillStyle='rgba(240,208,176,0.9)';ctx.beginPath();ctx.ellipse(cx,cy,30,38,0,0,Math.PI*2);ctx.fill();
    ctx.strokeStyle='rgba(138,96,64,0.6)';ctx.lineWidth=1;ctx.stroke();
    var ey=cy-8;[-12,12].forEach(function(ex){ctx.fillStyle='rgba(42,26,10,0.85)';ctx.beginPath();ctx.arc(cx+ex,ey,5,0,Math.PI*2);ctx.fill();});
    [-12,12].forEach(function(ex,i){var tilt=(i===0?1:-1)*cfg.brow*0.2;ctx.beginPath();ctx.moveTo(cx+ex-8,ey-10+Math.sin(tilt)*4);ctx.lineTo(cx+ex+8,ey-10-Math.sin(tilt)*4);ctx.strokeStyle='rgba(74,42,16,0.8)';ctx.lineWidth=2;ctx.stroke();});
    var my=cy+20,cur=cfg.mouth*10;ctx.beginPath();ctx.moveTo(cx-12,my);ctx.quadraticCurveTo(cx,my+cur,cx+12,my);ctx.strokeStyle='rgba(74,42,16,0.7)';ctx.lineWidth=2;ctx.stroke();
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText(emotions[emo],W/2,H-8);
  })();
}
window.animFER=animFER;

function animTOJ(){
  var t=0,state='wait',first='left',soa=150;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%80===0){state='first';first=Math.random()<0.5?'left':'right';}
    if(t%80===14)state='second';
    if(t%80===28)state='wait';
    var ctx=getCtx();if(!ctx)return;
    var cx=W/2,cy=H/2,bw=28,bh=28;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.strokeStyle='rgba(138,180,208,0.3)';ctx.lineWidth=1;
    ctx.strokeRect(cx-60-bw/2,cy-bh/2,bw,bh);ctx.strokeRect(cx+60-bw/2,cy-bh/2,bw,bh);
    var lit=state==='first'?first:state==='second'?(first==='left'?'right':'left'):null;
    if(lit){ctx.fillStyle='rgba(212,180,86,0.85)';ctx.fillRect(cx+(lit==='left'?-60:-60+120)-bw/2,cy-bh/2,bw,bh);}
    ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('F=left first  J=right first',W/2,H-8);
  })();
}
window.animTOJ=animTOJ;

function animMatrix(){
  var t=0,prob=null,tick=0;
  function rnd(){var sb=Math.floor(Math.random()*5),szb=Math.floor(Math.random()*3);var s=['circle','square','triangle','diamond','cross'];var z=[10,14,18];var mat=[];for(var r=0;r<3;r++){var row=[];for(var c=0;c<3;c++)row.push({sh:s[(sb+r)%5],sz:z[(szb+c)%3]});mat.push(row);}return mat;}
  var mat=rnd();
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;tick++;
    if(tick>120){tick=0;mat=rnd();}
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    var cw=34,ch=26,gap=3,ox=(W-cw*3-gap*2)/2,oy=(H-ch*3-gap*2)/2-8;
    for(var r=0;r<3;r++)for(var c=0;c<3;c++){
      var cell=mat[r][c];var x=ox+c*(cw+gap),y=oy+r*(ch+gap);
      ctx.fillStyle='#0a1620';ctx.fillRect(x,y,cw,ch);
      ctx.strokeStyle='rgba(138,180,208,0.25)';ctx.lineWidth=1;ctx.strokeRect(x,y,cw,ch);
      if(r===2&&c===2){ctx.fillStyle='rgba(212,180,86,0.3)';ctx.font='14px monospace';ctx.textAlign='center';ctx.fillText('?',x+cw/2,y+ch/2+5);continue;}
      var cx2=x+cw/2,cy2=y+ch/2,rz=cell.sz/2;
      ctx.beginPath();ctx.strokeStyle=GOLD;ctx.lineWidth=1.2;
      if(cell.sh==='circle')ctx.arc(cx2,cy2,rz,0,Math.PI*2);
      else if(cell.sh==='square')ctx.rect(cx2-rz,cy2-rz,rz*2,rz*2);
      else if(cell.sh==='triangle'){ctx.moveTo(cx2,cy2-rz);ctx.lineTo(cx2+rz,cy2+rz);ctx.lineTo(cx2-rz,cy2+rz);ctx.closePath();}
      else if(cell.sh==='diamond'){ctx.moveTo(cx2,cy2-rz);ctx.lineTo(cx2+rz,cy2);ctx.lineTo(cx2,cy2+rz);ctx.lineTo(cx2-rz,cy2);ctx.closePath();}
      else{ctx.rect(cx2-rz,cy2-rz*0.35,rz*2,rz*0.7);ctx.rect(cx2-rz*0.35,cy2-rz,rz*0.7,rz*2);}
      ctx.stroke();
    }
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.textAlign='center';ctx.fillText('matrix reasoning',W/2,H-8);
  })();
}
window.animMatrix=animMatrix;

function animMeta(){
  var t=0,words=['ANCHOR','TEMPLE','RAVEN','HARBOR'],wi=0,phase='study';
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%60===0){wi=(wi+1)%words.length;phase=t%120<60?'study':'test';}
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.textAlign='center';ctx.font='20px "EB Garamond",serif';
    ctx.fillStyle=phase==='study'?GOLD:MID;ctx.fillText(words[wi],W/2,H/2+6);
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;
    ctx.fillText(phase==='study'?'STUDY':'OLD or NEW?',W/2,H/2+24);
    ctx.fillText('metacognition',W/2,H-8);
  })();
}
window.animMeta=animMeta;

function animPHQ9(){
  var t=0,item=0,items=['Little interest or pleasure','Feeling down or hopeless','Trouble sleeping'];
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    if(t%90===0)item=(item+1)%items.length;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.fillStyle='rgba(212,180,86,0.15)';ctx.fillRect(12,18,W-24,26);
    ctx.fillStyle=GOLD;ctx.font='11px "EB Garamond",serif';ctx.textAlign='center';ctx.fillText('PHQ-9',W/2,36);
    ctx.fillStyle=MID;ctx.font='9px "EB Garamond",serif';ctx.fillText(items[item],W/2,62);
    var opts=['Not at all','Several days','Most days','Nearly every day'];
    opts.forEach(function(o,i){var y=80+i*18;ctx.fillStyle='rgba(138,180,208,0.2)';ctx.fillRect(20,y-10,W-40,14);ctx.fillStyle=i===Math.floor(t/30)%4?GOLD:MID;ctx.font='8px "Source Code Pro",monospace';ctx.fillText(o,W/2,y);});
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.fillText('depression screen',W/2,H-8);
  })();
}
window.animPHQ9=animPHQ9;

function animGAD7(){
  var t=0;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.fillStyle='rgba(212,180,86,0.15)';ctx.fillRect(12,18,W-24,26);
    ctx.fillStyle=GOLD;ctx.font='11px "EB Garamond",serif';ctx.textAlign='center';ctx.fillText('GAD-7',W/2,36);
    ctx.fillStyle=MID;ctx.font='9px "EB Garamond",serif';ctx.fillText('Feeling nervous or anxious',W/2,62);
    var opts=['Not at all','Several days','Most days','Nearly every day'];
    opts.forEach(function(o,i){var y=80+i*18;ctx.fillStyle='rgba(138,180,208,0.2)';ctx.fillRect(20,y-10,W-40,14);ctx.fillStyle=i===Math.floor(t/30)%4?GOLD:MID;ctx.font='8px "Source Code Pro",monospace';ctx.fillText(o,W/2,y);});
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.fillText('anxiety screen',W/2,H-8);
  })();
}
window.animGAD7=animGAD7;

function animPCL5(){
  var t=0;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.fillStyle='rgba(212,180,86,0.15)';ctx.fillRect(12,18,W-24,26);
    ctx.fillStyle=GOLD;ctx.font='11px "EB Garamond",serif';ctx.textAlign='center';ctx.fillText('PCL-5',W/2,36);
    ctx.fillStyle=MID;ctx.font='9px "EB Garamond",serif';ctx.fillText('Unwanted memories of event',W/2,62);
    var clusters=['Intrusion','Avoidance','Cog/Mood','Arousal'];var scores=[Math.sin(t/40)*3+3,Math.sin(t/55)*2+2,Math.sin(t/35)*5+5,Math.sin(t/45)*3+3];
    clusters.forEach(function(cl,i){var bw=(scores[i]/10)*(W-40);ctx.fillStyle='rgba(138,180,208,0.15)';ctx.fillRect(20,80+i*20,W-40,12);ctx.fillStyle='rgba(212,180,86,0.5)';ctx.fillRect(20,80+i*20,bw,12);ctx.fillStyle=MID;ctx.font='7px "Source Code Pro",monospace';ctx.textAlign='left';ctx.fillText(cl,22,90+i*20);ctx.textAlign='center';});
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.fillText('PTSD checklist',W/2,H-8);
  })();
}
window.animPCL5=animPCL5;

function animAUDIT(){
  var t=0;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.fillStyle='rgba(212,180,86,0.15)';ctx.fillRect(12,18,W-24,26);
    ctx.fillStyle=GOLD;ctx.font='11px "EB Garamond",serif';ctx.textAlign='center';ctx.fillText('AUDIT',W/2,36);
    ctx.fillStyle=MID;ctx.font='9px "EB Garamond",serif';ctx.fillText('How often do you drink?',W/2,62);
    var bars=[2,3,1,4,2];var bw=24;
    bars.forEach(function(h,i){var bh=(h/4)*(H-100);var x=20+i*(bw+8);var y=H-30-bh;ctx.fillStyle='rgba(212,180,86,'+(0.2+h/6)+')';ctx.fillRect(x,y,bw,bh);ctx.strokeStyle='rgba(212,180,86,0.4)';ctx.lineWidth=1;ctx.strokeRect(x,y,bw,bh);});
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.fillText('alcohol use disorders',W/2,H-8);
  })();
}
window.animAUDIT=animAUDIT;

function animASRS(){
  var t=0,items=['Trouble finishing projects','Difficulty organizing','Forgetting appointments'];var ii=0;
  (function loop(){
    animRAF=requestAnimationFrame(loop);t++;if(t%80===0)ii=(ii+1)%items.length;
    var ctx=getCtx();if(!ctx)return;
    ctx.clearRect(0,0,W,H);ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    ctx.fillStyle='rgba(212,180,86,0.15)';ctx.fillRect(12,18,W-24,26);
    ctx.fillStyle=GOLD;ctx.font='11px "EB Garamond",serif';ctx.textAlign='center';ctx.fillText('ASRS-v1.1',W/2,36);
    ctx.fillStyle=MID;ctx.font='8px "EB Garamond",serif';ctx.fillText(items[ii],W/2,62);
    var freq=['Never','Rarely','Sometimes','Often','Very often'];
    freq.forEach(function(f,i){var y=80+i*16;var shade=i>=2&&ii===0;ctx.fillStyle=shade?'rgba(212,180,86,0.15)':'rgba(138,180,208,0.1)';ctx.fillRect(20,y-9,W-40,13);ctx.fillStyle=shade?GOLD:MID;ctx.font='8px "Source Code Pro",monospace';ctx.fillText(f,W/2,y);});
    ctx.font='9px "Source Code Pro",monospace';ctx.fillStyle=MID;ctx.fillText('adult ADHD screen',W/2,H-8);
  })();
}
window.animASRS=animASRS;

  window.animAttBlink = animAttBlink;
  window.animSubitize = animSubitize;
  window.animLexDec = animLexDec;
  window.animSemFluency = animSemFluency;
  window.animProsMem = animProsMem;
  window.animSpatWM = animSpatWM;
  window.animDrawERP = animDrawERP;
  window.animMoCA = animMoCA;
  window.animREWP = animREWP;
  window.animDigCan = animDigCan;
  window.animABR = animABR;
  window.animN1P2 = animN1P2;
  window.animRON = animRON;
  window.animLAN = animLAN;
  window.animCPS = animCPS;
  window.animN2B = animN2B;
  window.animPD = animPD;
  window.animERAN = animERAN;
  window.animLPC = animLPC;
  window.animFRN = animFRN;
  window.animCDA = animCDA;
  window.animLDAEP = animLDAEP;
  window.animC1 = animC1;
  window.animPMN = animPMN;
  window.animVPP = animVPP;
  window.animPE = animPE;
  window.animORN = animORN;
  window.animMFN = animMFN;
  window.animP1N1 = animP1N1;
  window.animCNVW = animCNVW;
  window.animTHALPHA = animTHALPHA;
  window.animSymSearch = animSymSearch;
  window.animPhonFlue = animPhonFlue;
  window.animJLO = animJLO;
  window.animPASAT = animPASAT;
  window.animRAVLT = animRAVLT;
  window.animCVLT = animCVLT;
  window.animIGT = animIGT;
  window.animTOL = animTOL;
  window.animRMET = animRMET;

  // ── HACHINSKI ISCHEMIC SCORE ─────────────────────────────
  // Visual: vertical checklist of items with weights, items lighting in
  // sequence; running total bar accumulates with the items' point weights.
  function animHachinski(){
    var weights=[2,1,2,1,1,1,1,1,1,2,1,2,2];  // matches HACH_W
    var labels=['Abrupt onset','Stepwise','Fluctuating','Nocturn. confusion','Personality pres.','Depression','Somatic','Emot. incont.','Hypertension','Strokes','Atherosclerosis','Focal sympt.','Focal signs'];
    var t=0, n=labels.length;
    function tick(){
      animRAF=requestAnimationFrame(tick); t++;
      var ctx=getCtx(); if(!ctx) return;
      ctx.clearRect(0,0,W,H); ctx.fillStyle=NAVY; ctx.fillRect(0,0,W,H);
      // Two columns of items
      var col1=Math.ceil(n/2), col2=n-col1;
      var rowH=12, colW=(W-40)/2, oy=10;
      // light-up cursor — sweeps through items, presence pattern simulated
      var step=Math.floor(t/22) % (n+8);
      var totalPts=0;
      for(var i=0;i<n;i++){
        var col=i<col1?0:1;
        var row=i<col1?i:(i-col1);
        var x=10+col*(colW+8);
        var y=oy+row*rowH;
        // active up to current step? — show pseudo-deterministic presence on indices [0,2,9,11,12] (vascular pattern)
        var isActive = step>i && [0,2,9,11,12].indexOf(i)>=0;
        var isCurrent = step===i+1;
        ctx.fillStyle = isActive?'rgba(212,165,32,0.18)':isCurrent?'rgba(212,165,32,0.32)':'rgba(138,180,208,0.06)';
        ctx.fillRect(x,y,colW,rowH-2);
        ctx.strokeStyle = isCurrent?GOLD:'rgba(212,180,86,0.25)';
        ctx.lineWidth=1;
        ctx.strokeRect(x,y,colW,rowH-2);
        // checkmark or empty box
        ctx.fillStyle = isActive?GOLD:'rgba(138,180,208,0.4)';
        ctx.fillRect(x+3, y+2, 6, 6);
        if(isActive){ctx.strokeStyle=NAVY;ctx.lineWidth=1.5;ctx.beginPath();ctx.moveTo(x+4,y+5);ctx.lineTo(x+6,y+7);ctx.lineTo(x+8,y+3);ctx.stroke();}
        // label
        ctx.fillStyle=isCurrent?GOLD:isActive?'#d4b456':MID;
        ctx.font='8px "Source Code Pro",monospace'; ctx.textAlign='left';
        ctx.fillText(labels[i], x+12, y+8);
        // weight badge on right
        ctx.fillStyle=weights[i]===2?'rgba(212,140,86,0.7)':'rgba(138,180,208,0.4)';
        ctx.font='7px "Source Code Pro",monospace'; ctx.textAlign='right';
        ctx.fillText('+'+weights[i], x+colW-3, y+8);
        if(isActive) totalPts+=weights[i];
      }
      // total score banner
      ctx.fillStyle='rgba(212,165,32,0.12)';
      ctx.fillRect(0,H-14,W,14);
      ctx.fillStyle=GOLD;
      ctx.font='bold 9px "Source Code Pro",monospace';
      ctx.textAlign='center';
      var label = totalPts>=7?'multi-infarct':totalPts<=4?'primary degen.':'mixed';
      ctx.fillText('HIS '+totalPts+'/18  ·  '+label, W/2, H-4);
    }
    tick();
  }
  window.animHachinski = animHachinski;

  // ── KATZ INDEX OF INDEPENDENCE IN ADLs ────────────────────
  // Visual: 6 self-care icons cycle between Independent (gold-filled) and
  // Dependent (dim) states. Below: running independence count out of 6.
  function animKatz(){
    var items=[
      {gly:'\u{1F6BF}',lbl:'BATHE'},      // shower
      {gly:'\u{1F455}',lbl:'DRESS'},      // t-shirt
      {gly:'\u{1F6BD}',lbl:'TOILET'},     // toilet
      {gly:'\u{1F6CC}',lbl:'TRANSFER'},   // person in bed
      {gly:'\u{1F6BA}',lbl:'CONTIN.'},    // restroom symbol
      {gly:'\u{1F374}',lbl:'FEED'}        // fork+knife
    ];
    var t=0;
    function tick(){
      animRAF=requestAnimationFrame(tick); t++;
      var ctx=getCtx(); if(!ctx) return;
      ctx.clearRect(0,0,W,H); ctx.fillStyle=NAVY; ctx.fillRect(0,0,W,H);
      // 6 items as cards
      var cardW=70, gap=8, ox=(W-(6*cardW+5*gap))/2, oy=10;
      var indep=0;
      for(var i=0;i<6;i++){
        // Each item independent except a slowly-rotating "dependent" slot
        var depSlot = Math.floor(t/45) % 7;  // sometimes no slot dependent (full 6/6)
        var isIndep = !(i===depSlot && depSlot<6);
        if(isIndep) indep++;
        var x=ox+i*(cardW+gap), y=oy;
        ctx.fillStyle = isIndep?'rgba(212,165,32,0.18)':'rgba(224,92,92,0.12)';
        ctx.fillRect(x, y, cardW, 60);
        ctx.strokeStyle = isIndep?GOLD:'rgba(224,92,92,0.5)';
        ctx.lineWidth=1.5;
        ctx.strokeRect(x, y, cardW, 60);
        // icon
        ctx.fillStyle = isIndep?GOLD:'rgba(224,92,92,0.8)';
        ctx.font='24px "Apple Color Emoji","Segoe UI Emoji",sans-serif';
        ctx.textAlign='center'; ctx.textBaseline='middle';
        ctx.fillText(items[i].gly, x+cardW/2, y+22);
        // label
        ctx.textBaseline='alphabetic';
        ctx.fillStyle = isIndep?GOLD:MID;
        ctx.font='8px "Source Code Pro",monospace';
        ctx.fillText(items[i].lbl, x+cardW/2, y+52);
        // 1/0 score chip
        ctx.fillStyle = isIndep?GOLD:'rgba(224,92,92,0.7)';
        ctx.font='bold 7px "Source Code Pro",monospace';
        ctx.fillText(isIndep?'1':'0', x+cardW-7, y+9);
      }
      // total
      ctx.fillStyle='rgba(212,165,32,0.12)';
      ctx.fillRect(0,H-14,W,14);
      ctx.fillStyle=GOLD;
      ctx.font='bold 9px "Source Code Pro",monospace';
      ctx.textAlign='center';
      ctx.fillText('Katz ADL '+indep+'/6  ·  basic activities of daily living', W/2, H-4);
    }
    tick();
  }
  window.animKatz = animKatz;

  // ── LAWTON INSTRUMENTAL ADL ───────────────────────────────
  // Visual: 8 IADL icons in a row; one rotates between independent/dependent
  // to convey selective IADL decline (early dementia/MCI signature).
  function animLawton(){
    var items=[
      {gly:'\u{1F4DE}',lbl:'PHONE'},     // telephone
      {gly:'\u{1F6D2}',lbl:'SHOP'},      // shopping cart
      {gly:'\u{1F373}',lbl:'COOK'},      // cooking
      {gly:'\u{1F9F9}',lbl:'CLEAN'},     // broom
      {gly:'\u{1F455}',lbl:'LAUNDRY'},   // shirt
      {gly:'\u{1F697}',lbl:'TRANSP.'},   // car
      {gly:'\u{1F48A}',lbl:'MEDS'},      // pill
      {gly:'\u{1F4B0}',lbl:'FINANCE'}    // money bag
    ];
    var t=0;
    function tick(){
      animRAF=requestAnimationFrame(tick); t++;
      var ctx=getCtx(); if(!ctx) return;
      ctx.clearRect(0,0,W,H); ctx.fillStyle=NAVY; ctx.fillRect(0,0,W,H);
      // 8 items in a row
      var cardW=58, gap=4, ox=(W-(8*cardW+7*gap))/2, oy=12;
      // Cycle through scenarios — sometimes all 8 independent, sometimes 2 down
      var phase=Math.floor(t/60) % 4;
      var depSet = phase===0 ? [] : phase===1 ? [7] : phase===2 ? [2,7] : [6,7];  // finances first, then meds — typical dementia signature
      var indep=0;
      for(var i=0;i<8;i++){
        var isIndep = depSet.indexOf(i)<0;
        if(isIndep) indep++;
        var x=ox+i*(cardW+gap), y=oy;
        ctx.fillStyle = isIndep?'rgba(212,165,32,0.18)':'rgba(224,92,92,0.12)';
        ctx.fillRect(x, y, cardW, 56);
        ctx.strokeStyle = isIndep?GOLD:'rgba(224,92,92,0.5)';
        ctx.lineWidth=1.5;
        ctx.strokeRect(x, y, cardW, 56);
        // icon
        ctx.fillStyle = isIndep?GOLD:'rgba(224,92,92,0.8)';
        ctx.font='20px "Apple Color Emoji","Segoe UI Emoji",sans-serif';
        ctx.textAlign='center'; ctx.textBaseline='middle';
        ctx.fillText(items[i].gly, x+cardW/2, y+22);
        // label
        ctx.textBaseline='alphabetic';
        ctx.fillStyle = isIndep?GOLD:MID;
        ctx.font='7px "Source Code Pro",monospace';
        ctx.fillText(items[i].lbl, x+cardW/2, y+50);
        // 1/0 score chip
        ctx.fillStyle = isIndep?GOLD:'rgba(224,92,92,0.7)';
        ctx.font='bold 7px "Source Code Pro",monospace';
        ctx.fillText(isIndep?'1':'0', x+cardW-6, y+9);
      }
      // total
      ctx.fillStyle='rgba(212,165,32,0.12)';
      ctx.fillRect(0,H-14,W,14);
      ctx.fillStyle=GOLD;
      ctx.font='bold 9px "Source Code Pro",monospace';
      ctx.textAlign='center';
      var msg = indep===8?'full IADL function':indep>=6?'mild impairment · MCI marker':indep>=3?'moderate impairment':'severe impairment';
      ctx.fillText('Lawton IADL '+indep+'/8  ·  '+msg, W/2, H-4);
    }
    tick();
  }
  window.animLawton = animLawton;

})(); // end anim IIFE

// ══════ TASK IMPLEMENTATIONS ══════════════════════════════

// ── Generic task scaffold ─────────────────────────────────
function makeTask(key,screenId,maxT,isPractice,onStart,onNext,onEnd){
  var S={active:true,isPractice:isPractice,trial:0,maxTrials:maxT,log:[],practiceLog:[],_timers:[]};
  S.T=function(fn,ms){var t=setTimeout(fn,ms);S._timers.push(t);return t;};
  S.clear=function(){S._timers.forEach(clearTimeout);S._timers=[];};
  S.push=function(row){(isPractice?S.practiceLog:S.log).push(row);};
  S.progress=function(){$(key+'ProgressBar').style.width=((S.trial-1)/S.maxTrials*100).toFixed(1)+'%';};
  S.end=function(){
    S.clear();S.active=false;$(key+'StimPhase').style.display='none';$(key+'ProgressBar').style.width='100%';
    // Auto block-end trigger
    try{Trigger.send(11,key.toUpperCase()+'_block_end',{task:key.toUpperCase()});}catch(_){}
    var log=isPractice?S.practiceLog:S.log;
    if(isPractice){
      var c=log.filter(function(r){return r.correct;}).length;hideAll();
      $('pcStats').innerHTML='ACC <span>'+(log.length?(c/log.length*100).toFixed(0):0)+'%</span>';
      $('practiceComplete').style.display='flex';return;
    }
    $('exportBtn').disabled=false;
    onEnd(log);
    $(key+'ResultsPhase').style.display='block';
  };
  hideAll();$(screenId).style.display='flex';
  $(key+'PracticeBanner').style.display=isPractice?'block':'none';
  $(key+'ProgressBar').style.width='0%';
  $(key+'StimPhase').style.display='flex';$(key+'ResultsPhase').style.display='none';
  $('si-task').textContent=key.toUpperCase()+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  // Auto block-start trigger
  try{Trigger.send(10,key.toUpperCase()+'_block_start',{task:key.toUpperCase(),practice:isPractice,n_trials:maxT});}catch(_){}
  onStart(S);
  return S;
}
function genericMetrics(log){
  var valid=log.filter(function(r){return r.rt;});
  var hits=log.filter(function(r){return r.correct;});
  var acc=log.length?(hits.length/log.length*100).toFixed(0):'—';
  var avgRT=valid.length?(valid.reduce(function(a,b){return a+b.rt;},0)/valid.length).toFixed(0):'—';
  return '<div class="vrt-metric"><div class="vm-val">'+avgRT+'ms</div><div class="vm-lbl">Avg RT</div></div>'+
         '<div class="vrt-metric"><div class="vm-val">'+acc+'%</div><div class="vm-lbl">Accuracy</div></div>'+
         '<div class="vrt-metric"><div class="vm-val">'+log.length+'</div><div class="vm-lbl">Trials</div></div>';
}
function makeExportCSV(key,header,rowFn){
  return function(){
    var log=window['_'+key+'_log'];if(!log||!log.length)return;
    var blob=new Blob([header+'\n'+log.map(rowFn).join('\n')],{type:'text/csv'});
    var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download=key+'_'+Date.now()+'.csv';a.click();
  };
}

// ── P50 Sensory Gating ────────────────────────────────────
var _P50;
function startP50(isPractice){
  _P50=makeTask('p50','p50Screen',taskTrials('P50',5,40,isPractice),isPractice,function(S){
    S.T(p50Next,800);
  },null,function(log){
    window._p50_log=log;
    var s1=log.filter(function(r){return r.type==='S1';}), s2=log.filter(function(r){return r.type==='S2';});
    $('p50Metrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+s1.length+'</div><div class="vm-lbl">S1 pairs</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+s2.length+'</div><div class="vm-lbl">S2 suppressed</div></div>';
  });
  function p50Next(){
    if(_P50.trial>=_P50.maxTrials){_P50.end();return;}
    _P50.trial++;_P50.progress();
    $('p50-trial').textContent='Pair '+_P50.trial+'/'+_P50.maxTrials;
    $('p50-phase').textContent=tr('S1');
    var c=$('p50Circle');c.style.borderColor='var(--gold)';c.style.background='rgba(212,180,86,0.1)';$('p50Label').textContent=tr('S1');
    playClick();_P50.push({trial:_P50.trial,type:'S1',t:performance.now()});triggerFlash();
    // Trigger: S1 click (41 = class A, conditioning stim)
    Trigger.send(41,'P50_S1',{task:'P50',trial:_P50.trial,type:'S1'});
    _P50.T(function(){
      c.style.borderColor='#5b9fda';c.style.background='rgba(91,159,218,0.08)';$('p50Label').textContent='S2 (500ms)';$('p50-phase').textContent=tr('S2');
      playClick();_P50.push({trial:_P50.trial,type:'S2',t:performance.now()});triggerFlash();
      // Trigger: S2 click (42 = class B, test stim — KEY for gating ratio)
      Trigger.send(42,'P50_S2',{task:'P50',trial:_P50.trial,type:'S2',isi_ms:500});
      _P50.T(function(){c.style.borderColor='#1a2f44';c.style.background='#0a1620';$('p50Label').textContent='';_P50.T(p50Next,7000+Math.random()*2000);},500);
    },500);
  }
  function playClick(){
    // R12: custom audio override
    if (typeof CustomAudio !== 'undefined' && CustomAudio.tryPlay('p50-click', 0.4)) return;
    try{var ctx=new(window.AudioContext||window.webkitAudioContext)();var b=ctx.createBuffer(1,Math.round(ctx.sampleRate*0.002),ctx.sampleRate);var d=b.getChannelData(0);for(var i=0;i<d.length;i++)d[i]=(Math.random()*2-1)*0.3;var s=ctx.createBufferSource();s.buffer=b;var g=ctx.createGain();g.gain.setValueAtTime(0.4,ctx.currentTime);g.gain.linearRampToValueAtTime(0,ctx.currentTime+0.002);s.connect(g);g.connect(ctx.destination);s.start();setTimeout(function(){ctx.close();},200);}catch(e){}
  }
}
function p50ExportCSV(){var log=window._p50_log;if(!log)return;var blob=new Blob(['trial,type,t_ms\n'+log.map(function(r){return[r.trial,r.type,r.t.toFixed(0)].join(',');}).join('\n')],{type:'text/csv'});var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='p50_'+Date.now()+'.csv';a.click();}

// ── N100 / P200 ───────────────────────────────────────────
var _N100;
function startN100(isPractice){
  _N100=makeTask('n100','n100Screen',taskTrials('N100',5,60,isPractice),isPractice,function(S){S.T(n100Next,800);},null,function(log){window._n100_log=log;$('n100Metrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+log.length+'</div><div class="vm-lbl">AEP Trials</div></div>';});
  function n100Next(){
    if(_N100.trial>=_N100.maxTrials){_N100.end();return;}
    _N100.trial++;_N100.progress();$('n100-trial').textContent='Trial '+_N100.trial+'/'+_N100.maxTrials;
    var c=$('n100Circle');c.style.borderColor='var(--gold)';c.style.background='rgba(212,180,86,0.1)';$('n100Label').textContent=tr('CLICK');
    playAEPClick();_N100.push({trial:_N100.trial,t:performance.now()});triggerFlash();
    // Trigger: stim onset — 40 generic (single-class AEP)
    Trigger.send(40,'N100_click',{task:'N100',trial:_N100.trial});
    _N100.T(function(){c.style.borderColor='#1a2f44';c.style.background='#0a1620';$('n100Label').textContent='';_N100.T(n100Next,800+Math.random()*400);},300);
  }
  function playAEPClick(){
    // R12: custom audio override
    if (typeof CustomAudio !== 'undefined' && CustomAudio.tryPlay('n100-tone', 0.5)) return;
    try{var ctx=new(window.AudioContext||window.webkitAudioContext)();var b=ctx.createBuffer(1,Math.round(ctx.sampleRate*0.001),ctx.sampleRate);var d=b.getChannelData(0);for(var i=0;i<d.length;i++)d[i]=(Math.random()*2-1)*0.5;var s=ctx.createBufferSource();s.buffer=b;s.connect(ctx.destination);s.start();setTimeout(function(){ctx.close();},200);}catch(e){}}
}
function n100ExportCSV(){var log=window._n100_log;if(!log)return;var blob=new Blob(['trial,t_ms\n'+log.map(function(r){return[r.trial,r.t.toFixed(0)].join(',');}).join('\n')],{type:'text/csv'});var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='n100_'+Date.now()+'.csv';a.click();}


// ── P100 FLASH ────────────────────────────────────────────
// Brief full-field luminance flashes elicit P100 (~80–130 ms, occipital, V1).
// Distinct from pattern-onset PVEP: uses uniform luminance change rather than
// checkerboard reversal. Includes occasional dim catch trials (10%) requiring
// SPACE response to keep participant attentive without contaminating the
// passive flash trials with motor planning.
var _P100;
function startP100(isPractice){
  _P100={active:true,isPractice:isPractice,trial:0,maxTrials:taskTrials('P100',5,80,isPractice),
         catches:0,hits:0,fa:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_P100._timers.push(t);return t;}
  _P100.T=T;
  _P100.clear=function(){_P100._timers.forEach(clearTimeout);_P100._timers=[];};
  hideAll();$('p100Screen').style.display='flex';
  $('p100PracticeBanner').style.display=isPractice?'block':'none';
  $('p100ProgressBar').style.width='0%';$('p100StimPhase').style.display='flex';
  $('p100ResultsPhase').style.display='none';$('p100Feedback').textContent='';
  $('si-task').textContent='P100'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  // Catch-trial response listener
  var awaitingResponse=false,catchOnset=0,currentIsCatch=false;
  var kh=function(e){
    if(!_P100.active||e.key!==' ')return;
    e.preventDefault();
    if(!awaitingResponse)return;
    var rt=+(performance.now()-catchOnset).toFixed(1);
    if(currentIsCatch){
      _P100.hits++;
      var fb=$('p100Feedback');fb.textContent=rt+'ms ✓';fb.className='feedback ok';
      _P100.log[_P100.log.length-1].response=1;_P100.log[_P100.log.length-1].rt=rt;
    } else {
      _P100.fa++;
      var fb2=$('p100Feedback');fb2.textContent='✗ false alarm';fb2.className='feedback err';
      _P100.log[_P100.log.length-1].response=1;_P100.log[_P100.log.length-1].rt=rt;
    }
    awaitingResponse=false;
  };
  document.addEventListener('keydown',kh);
  function paint(intensity){
    // intensity: 1.0 = bright flash, 0.35 = dim catch flash
    var cvs=$('p100Cvs');var ctx=cvs.getContext('2d');
    var v=Math.round(255*intensity);
    ctx.fillStyle='rgb('+v+','+v+','+v+')';
    ctx.fillRect(0,0,320,320);
    // Always draw a subtle fixation cross
    ctx.strokeStyle='rgba(200,80,80,0.9)';ctx.lineWidth=2;
    ctx.beginPath();ctx.moveTo(155,160);ctx.lineTo(165,160);ctx.moveTo(160,155);ctx.lineTo(160,165);ctx.stroke();
  }
  function clearScreen(){
    var cvs=$('p100Cvs');var ctx=cvs.getContext('2d');
    ctx.fillStyle='#000';ctx.fillRect(0,0,320,320);
    ctx.strokeStyle='rgba(200,80,80,0.9)';ctx.lineWidth=2;
    ctx.beginPath();ctx.moveTo(155,160);ctx.lineTo(165,160);ctx.moveTo(160,155);ctx.lineTo(160,165);ctx.stroke();
  }
  function end(){
    _P100.clear();_P100.active=false;
    document.removeEventListener('keydown',kh);
    $('p100StimPhase').style.display='none';$('p100ProgressBar').style.width='100%';
    if(isPractice){
      $('pcStats').innerHTML='Catch hits <span>'+_P100.hits+'/'+_P100.catches+'</span>';
      hideAll();$('practiceComplete').style.display='flex';return;
    }
    window._p100_log=_P100.log;$('exportBtn').disabled=false;
    var catchAcc=_P100.catches?((_P100.hits/_P100.catches)*100).toFixed(0)+'%':'--';
    var trials=_P100.log.length;
    var brightCount=_P100.log.filter(function(r){return !r.isCatch;}).length;
    $('p100Metrics').innerHTML=
      '<div class="vrt-metric"><div class="vm-val">'+trials+'</div><div class="vm-lbl">Total flashes</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+brightCount+'</div><div class="vm-lbl">Bright (P100)</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+_P100.catches+'</div><div class="vm-lbl">Catch (dim)</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+catchAcc+'</div><div class="vm-lbl">Catch acc.</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+_P100.fa+'</div><div class="vm-lbl">False alarms</div></div>';
    $('p100ResultsPhase').style.display='block';updateSidebar();
  }
  function next(){
    if(!_P100.active)return;
    if(_P100.trial>=_P100.maxTrials){end();return;}
    _P100.trial++;awaitingResponse=false;
    $('p100ProgressBar').style.width=(_P100.trial/_P100.maxTrials*100).toFixed(1)+'%';
    $('p100-trial').textContent='Trial '+_P100.trial+'/'+_P100.maxTrials;
    $('p100-catch').textContent='Catch: '+_P100.hits+'/'+_P100.catches;
    $('p100Feedback').textContent='';
    // 10% chance of dim catch trial
    currentIsCatch=Math.random()<0.10;
    if(currentIsCatch)_P100.catches++;
    var rec={trial:_P100.trial,isCatch:currentIsCatch,onset:performance.now(),response:0,rt:null};
    _P100.log.push(rec);
    // Brief flash: ~80 ms onset
    paint(currentIsCatch?0.35:1.0);
    triggerFlash();
    if(typeof Trigger!=='undefined' && Trigger.send){
      Trigger.send(currentIsCatch?52:50,'P100_flash',{task:'P100',trial:_P100.trial,catch:currentIsCatch});
    }
    catchOnset=performance.now();
    if(currentIsCatch)awaitingResponse=true;
    // Flash duration ~80 ms, then return to dark with fixation
    _P100.T(function(){clearScreen();},80);
    // Inter-stimulus interval: 1200-1800 ms jittered
    var iti=1200+Math.random()*600;
    _P100.T(function(){awaitingResponse=false;next();},iti);
  }
  // initial blank screen with fixation, brief delay, then start
  clearScreen();
  _P100.T(next,800);
}
function p100ExportCSV(){
  var log=window._p100_log;if(!log)return;
  var blob=new Blob(['trial,is_catch,response,rt_ms\n'+log.map(function(r){
    return[r.trial,r.isCatch?1:0,r.response||0,r.rt===null?'':r.rt].join(',');
  }).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='p100_'+Date.now()+'.csv';a.click();
}

// ── SCP ───────────────────────────────────────────────────
var _SCP;
function startSCP(isPractice){
  _SCP=makeTask('scp','scpScreen',taskTrials('SCP',5,20,isPractice),isPractice,function(S){S.T(scpNext,600);},null,function(log){window._scp_log=log;$('scpMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+log.length+'</div><div class="vm-lbl">Trials</div></div>';});
  function scpNext(){
    if(_SCP.trial>=_SCP.maxTrials){_SCP.end();return;}
    _SCP.trial++;_SCP.progress();$('scp-trial').textContent='Trial '+_SCP.trial+'/'+_SCP.maxTrials;
    $('scpCue').textContent='';$('scpBarFill').style.width='0%';$('scp-phase').textContent=tr('REST');
    _SCP.T(function(){
      $('scpCue').textContent=tr('PREPARE');$('scp-phase').textContent=tr('CUE');
      var start=performance.now(),dur=3000;
      function animate(){if(!_SCP.active)return;var p=Math.min(1,(performance.now()-start)/dur);$('scpBarFill').style.width=(p*100)+'%';if(p<1)requestAnimationFrame(animate);}
      requestAnimationFrame(animate);
      _SCP.push({trial:_SCP.trial,t:performance.now()});triggerFlash();
      _SCP.T(function(){$('scpCue').textContent='';$('scpBarFill').style.width='0%';_SCP.T(scpNext,2000+Math.random()*1000);},dur);
    },1500);
  }
}
function scpExportCSV(){var log=window._scp_log;if(!log)return;var blob=new Blob(['trial,t_ms\n'+log.map(function(r){return[r.trial,r.t.toFixed(0)].join(',');}).join('\n')],{type:'text/csv'});var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='scp_'+Date.now()+'.csv';a.click();}

// ── P3A Novelty Oddball ───────────────────────────────────
var _P3A;
function startP3A(isPractice){
  var TYPES=['standard','standard','standard','standard','standard','standard','standard','target','novel','standard','standard','standard','standard','standard','target','novel'];
  var NOVEL_SOUNDS=['♫','★','⚡','◆','▲'];
  _P3A=makeTask('p3a','p3aScreen',taskTrials('P3A',5,48,isPractice),isPractice,function(S){S.ti=0;S.responded=false;S.waiting=false;S.stimOn=0;S.T(p3aNext,600);},null,function(log){
    window._p3a_log=log;
    var hits=log.filter(function(r){return r.type==='target'&&r.correct;});
    var fas=log.filter(function(r){return r.type!=='target'&&r.responded;});
    $('p3aMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+(hits.length/(log.filter(function(r){return r.type==='target';}).length||1)*100).toFixed(0)+'%</div><div class="vm-lbl">Hit Rate</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+fas.length+'</div><div class="vm-lbl">False Alarms</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+(hits.length&&hits[0].rt?hits.map(function(r){return r.rt;}).reduce(function(a,b){return a+b;},0)/hits.length:0).toFixed(0)+'ms</div><div class="vm-lbl">Target RT</div></div>';
  });
  function p3aNext(){
    if(_P3A.trial>=_P3A.maxTrials){_P3A.end();return;}
    _P3A.trial++;_P3A.progress();
    $('p3aFeedback').textContent='';$('p3aFeedback').className='feedback';
    var type=TYPES[_P3A.ti%TYPES.length];_P3A.ti++;
    _P3A.waiting=true;_P3A.responded=false;_P3A.stimOn=performance.now();
    _P3A.curType=type;   // remember the trial type for scoring (no longer shown on screen)
    var c=$('p3aCircle'),lbl=$('p3aLabel');
    // P3a is an AUDITORY oddball — the on-screen circle must NOT reveal which
    // tone is standard / target / novel (that would let the participant respond
    // by reading instead of listening). All three types look identical: a
    // neutral fixation circle, no label, neutral phase. Only the SOUND differs.
    lbl.textContent='';
    $('p3a-phase').textContent=tr('LISTEN');
    playP3ATone(type);triggerFlash();
    // Trigger: stim onset — 41 target, 42 standard, 43 novel (the KEY P3a trigger is 43)
    var stimCode=type==='target'?41:(type==='standard'?42:43);
    Trigger.send(stimCode,'P3A_'+type,{task:'P3A',trial:_P3A.trial,stim_type:type});
    _P3A.T(function(){
      c.style.borderColor='#1a2f44';c.style.background='#0a1620';lbl.textContent='';
      if(!_P3A.responded)_P3A.push({trial:_P3A.trial,type:type,responded:false,correct:type!=='target',rt:null});
      _P3A.waiting=false;_P3A.T(p3aNext,800+Math.random()*400);
    },400);
  }
  function playP3ATone(type){
    // R12: custom audio override
    if (typeof CustomAudio !== 'undefined' && CustomAudio.tryPlay('p3a-' + type, 0.4)) return;
    try{var ctx=new(window.AudioContext||window.webkitAudioContext)();var o=ctx.createOscillator();var g=ctx.createGain();
      o.frequency.value=type==='standard'?440:type==='target'?880:660;o.type='sine';
      g.gain.setValueAtTime(0.15,ctx.currentTime);g.gain.linearRampToValueAtTime(0,ctx.currentTime+0.08);
      o.connect(g);g.connect(ctx.destination);o.start();o.stop(ctx.currentTime+0.08);
      setTimeout(function(){ctx.close();},500);}catch(e){}
  }
  document.addEventListener('keydown',function p3aKey(e){
    if(!_P3A||!_P3A.active){document.removeEventListener('keydown',p3aKey);return;}
    if((e.key==='f'||e.key==='F')&&_P3A.waiting&&!_P3A.responded){
      _P3A.responded=true;var rt=+(performance.now()-_P3A.stimOn).toFixed(1);
      var type=_P3A.curType;var correct=type==='target';
      // Trigger: response — 50 hit (target detected), 51 false alarm (non-target response)
      Trigger.send(correct?50:51,correct?'P3A_hit':'P3A_FA',{task:'P3A',trial:_P3A.trial,stim_type:type,rt:rt});
      _P3A.push({trial:_P3A.trial,type:type,responded:true,correct:correct,rt:rt});
      var fb=$('p3aFeedback');fb.textContent=correct?rt+'ms ✓':rt+'ms ✗ FA';fb.className='feedback '+(correct?'ok':'err');
    }
  });
}
function p3aExportCSV(){var log=window._p3a_log;if(!log)return;var blob=new Blob(['trial,type,responded,correct,rt_ms\n'+log.map(function(r){return[r.trial,r.type,r.responded?1:0,r.correct?1:0,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='p3a_'+Date.now()+'.csv';a.click();}

// ── ASSR 40Hz ─────────────────────────────────────────────
var _ASSR;
function startASSR(isPractice){
  _ASSR=makeTask('assr','assrScreen',taskTrials('ASSR',5,20,isPractice),isPractice,function(S){S.T(assrNext,800);},null,function(log){window._assr_log=log;$('assrMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+log.length+'</div><div class="vm-lbl">Blocks</div></div><div class="vrt-metric"><div class="vm-val">40 Hz</div><div class="vm-lbl">Drive Frequency</div></div>';});
  var assrCtx=null,assrSrc=null,assrCustomHandle=null;
  function playASSR(){
    // R12: custom audio override — play pre-modulated WAV as-is (looped
    // if shorter than the block) for the same 3-sec block duration.
    if (typeof CustomAudio !== 'undefined') {
      var h = CustomAudio.tryPlayBounded('assr-tone', 0.4, 3000);
      if (h) { assrCustomHandle = h; return; }
    }
    try{assrCtx=new(window.AudioContext||window.webkitAudioContext)();
      var carrier=assrCtx.createOscillator();carrier.frequency.value=1000;carrier.type='sine';
      var am=assrCtx.createOscillator();am.frequency.value=40;am.type='sine';
      var amGain=assrCtx.createGain();amGain.gain.value=0;
      am.connect(amGain.gain);var masterGain=assrCtx.createGain();masterGain.gain.value=0.15;
      carrier.connect(masterGain);amGain.connect(masterGain);masterGain.connect(assrCtx.destination);
      carrier.start();am.start();assrSrc={carrier:carrier,am:am};
    }catch(e){}
  }
  function stopASSR(){
    if (assrCustomHandle) { try { assrCustomHandle.stop(); } catch(e){} assrCustomHandle=null; }
    if(assrSrc){try{assrSrc.carrier.stop();assrSrc.am.stop();}catch(e){}}if(assrCtx){try{assrCtx.close();}catch(e){}}assrSrc=null;assrCtx=null;
  }
  function assrNext(){
    if(_ASSR.trial>=_ASSR.maxTrials){stopASSR();_ASSR.end();return;}
    _ASSR.trial++;_ASSR.progress();$('assr-trial').textContent='Block '+_ASSR.trial+'/'+_ASSR.maxTrials;
    $('assrLabel').textContent='40 Hz AM tone — recording';var c=$('assrCircle');c.style.borderColor='var(--gold)';c.style.background='rgba(212,180,86,0.08)';
    playASSR();_ASSR.push({trial:_ASSR.trial,t:performance.now()});triggerFlash();
    var dur=3000;_ASSR.T(function(){stopASSR();c.style.borderColor='#1a2f44';c.style.background='#0a1620';$('assrLabel').textContent='';_ASSR.T(assrNext,1500+Math.random()*500);},dur);
  }
}
function assrExportCSV(){var log=window._assr_log;if(!log)return;var blob=new Blob(['block,t_ms\n'+log.map(function(r){return[r.trial,r.t.toFixed(0)].join(',');}).join('\n')],{type:'text/csv'});var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='assr_'+Date.now()+'.csv';a.click();}

// ── CPT-AX ────────────────────────────────────────────────
var _CPT;
function startCPT(isPractice){
  var LETTERS='BCDEFGHIJKLMNOPQRSTUVWXYZ'.split('');
  function randLetter(){return LETTERS[Math.floor(Math.random()*LETTERS.length)];}
  _CPT=makeTask('cpt','cptScreen',taskTrials('CPT',8,80,isPractice),isPractice,function(S){S.prev='';S.waiting=false;S.stimOn=0;S.responded=false;S.T(cptNext,600);},null,function(log){
    window._cpt_log=log;
    var targets=log.filter(function(r){return r.isTarget;});
    var hits=targets.filter(function(r){return r.correct;});
    var fas=log.filter(function(r){return !r.isTarget&&r.responded;});
    $('cptMetrics').innerHTML=genericMetrics(targets)+'<div class="vrt-metric"><div class="vm-val">'+fas.length+'</div><div class="vm-lbl">False Alarms</div></div>';
  });
  function cptNext(){
    if(_CPT.trial>=_CPT.maxTrials){_CPT.end();return;}
    _CPT.trial++;_CPT.progress();$('cptFeedback').textContent='';$('cptFeedback').className='feedback';
    // 10% A, 10% X after A (target), rest random
    var ltr;var r=Math.random();
    if(r<0.1)ltr='A';else if(r<0.2&&_CPT.prev==='A')ltr='X';else ltr=randLetter();
    var isTarget=ltr==='X'&&_CPT.prev==='A';
    _CPT.prev=ltr;_CPT.waiting=true;_CPT.responded=false;_CPT.stimOn=performance.now();
    $('cptStim').textContent=ltr;$('cptStim').style.color=isTarget?'var(--gold)':'var(--mid)';$('cpt-phase').textContent=isTarget?'TARGET':'—';triggerFlash();
    _CPT.T(function(){
      $('cptStim').textContent='';_CPT.waiting=false;
      if(!_CPT.responded)_CPT.push({trial:_CPT.trial,letter:ltr,isTarget:isTarget,responded:false,correct:!isTarget,rt:null});
      _CPT.T(cptNext,300+Math.random()*200);
    },350);
  }
  document.addEventListener('keydown',function cptKey(e){
    if(!_CPT||!_CPT.active){document.removeEventListener('keydown',cptKey);return;}
    if(e.code==='Space'&&_CPT.waiting&&!_CPT.responded){
      e.preventDefault();_CPT.responded=true;var rt=+(performance.now()-_CPT.stimOn).toFixed(1);
      var isTarget=$('cpt-phase').textContent==='TARGET';var correct=isTarget;
      _CPT.push({trial:_CPT.trial,letter:$('cptStim').textContent,isTarget:isTarget,responded:true,correct:correct,rt:rt});
      var fb=$('cptFeedback');fb.textContent=correct?rt+'ms ✓':rt+'ms ✗ FA';fb.className='feedback '+(correct?'ok':'err');
    }
  });
}
function cptExportCSV(){var log=window._cpt_log;if(!log)return;var blob=new Blob(['trial,letter,is_target,responded,correct,rt_ms\n'+log.map(function(r){return[r.trial,r.letter,r.isTarget?1:0,r.responded?1:0,r.correct?1:0,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='cpt_'+Date.now()+'.csv';a.click();}

// ── Emotional Stroop ──────────────────────────────────────
var _EMOTSTROOP;
var EMOT_WORDS={emotional:['FEAR','ANGER','GRIEF','PANIC','DREAD','RAGE','TERROR','SHAME'],neutral:['TABLE','CHAIR','RIVER','STONE','CLOUD','SHELF','FENCE','BRUSH']};
var EMOT_COLORS=['#c93030','#3070c9'];
function startEmotStroop(isPractice){
  var deck=[];for(var i=0;i<6;i++){EMOT_WORDS.emotional.forEach(function(w){deck.push({word:w,emotional:true,colIdx:Math.floor(Math.random()*2)});});EMOT_WORDS.neutral.forEach(function(w){deck.push({word:w,emotional:false,colIdx:Math.floor(Math.random()*2)});});}
  deck.sort(function(){return Math.random()-0.5;});
  _EMOTSTROOP=makeTask('emotstroop','emotstroopScreen',taskTrials('EMOTSTROOP',8,40,isPractice),isPractice,function(S){S.di=0;S.waiting=false;S.stimOn=0;S.T(esNext,600);},null,function(log){
    window._emotstroop_log=log;
    var em=log.filter(function(r){return r.emotional&&r.rt;}), ne=log.filter(function(r){return !r.emotional&&r.rt;});
    var emRT=em.length?(em.reduce(function(a,b){return a+b.rt;},0)/em.length).toFixed(0):'—';
    var neRT=ne.length?(ne.reduce(function(a,b){return a+b.rt;},0)/ne.length).toFixed(0):'—';
    var interference=(em.length&&ne.length)?(em.reduce(function(a,b){return a+b.rt;},0)/em.length - ne.reduce(function(a,b){return a+b.rt;},0)/ne.length).toFixed(0):'—';
    $('emotstroopMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+emRT+'ms</div><div class="vm-lbl">Emotional RT</div></div><div class="vrt-metric"><div class="vm-val">'+neRT+'ms</div><div class="vm-lbl">Neutral RT</div></div><div class="vrt-metric"><div class="vm-val">'+interference+'ms</div><div class="vm-lbl">Affective Interference</div></div>';
  });
  function esNext(){
    if(_EMOTSTROOP.trial>=_EMOTSTROOP.maxTrials){_EMOTSTROOP.end();return;}
    _EMOTSTROOP.trial++;_EMOTSTROOP.progress();$('emotstroopFeedback').textContent='';$('emotstroopFeedback').className='feedback';
    var item=deck[_EMOTSTROOP.di%deck.length];_EMOTSTROOP.di++;
    var col=EMOT_COLORS[item.colIdx];
    $('emotstroopWord').textContent=item.word;$('emotstroopWord').style.color=col;$('emotstroop-phase').textContent=item.emotional?'EMOTIONAL':'NEUTRAL';
    _EMOTSTROOP.waiting=true;_EMOTSTROOP.stimOn=performance.now();_EMOTSTROOP._item=item;triggerFlash();
    _EMOTSTROOP.T(function(){if(_EMOTSTROOP.waiting){$('emotstroopWord').textContent='';_EMOTSTROOP.push({trial:_EMOTSTROOP.trial,word:item.word,emotional:item.emotional,colIdx:item.colIdx,responded:false,correct:false,rt:null});_EMOTSTROOP.waiting=false;_EMOTSTROOP.T(esNext,400);}},1500);
  }
  document.addEventListener('keydown',function esKey(e){
    if(!_EMOTSTROOP||!_EMOTSTROOP.active){document.removeEventListener('keydown',esKey);return;}
    if(!_EMOTSTROOP.waiting)return;
    var resp=e.key==='f'||e.key==='F'?0:e.key==='j'||e.key==='J'?1:-1;
    if(resp<0)return;e.preventDefault();_EMOTSTROOP.waiting=false;
    var rt=+(performance.now()-_EMOTSTROOP.stimOn).toFixed(1);
    var item=_EMOTSTROOP._item;var correct=resp===item.colIdx;
    _EMOTSTROOP.push({trial:_EMOTSTROOP.trial,word:item.word,emotional:item.emotional,colIdx:item.colIdx,responded:true,correct:correct,rt:rt});
    var fb=$('emotstroopFeedback');fb.textContent=correct?rt+'ms ✓':rt+'ms ✗';fb.className='feedback '+(correct?'ok':'err');
    $('emotstroopWord').textContent='';_EMOTSTROOP.T(esNext,350);
  });
}
function emotstroopExportCSV(){var log=window._emotstroop_log;if(!log)return;var blob=new Blob(['trial,word,emotional,color_idx,correct,rt_ms\n'+log.map(function(r){return[r.trial,r.word,r.emotional?1:0,r.colIdx,r.correct?1:0,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='emot_stroop_'+Date.now()+'.csv';a.click();}

// ── Task Switching ────────────────────────────────────────
var _TASKSWITCH;
function startTaskSwitch(isPractice){
  var STIMS=[];
  var digits=['1','2','3','4','5','6','7','8','9'];
  var letters=['B','C','D','F','G','H','J','K','A','E','I','O','U'];
  // Build balanced blocks
  for(var i=0;i<20;i++){
    var d=digits[Math.floor(Math.random()*9)];var l=letters[Math.floor(Math.random()*letters.length)];
    var task=Math.random()<0.5?'NUMBER':'LETTER';
    STIMS.push({stim:task==='NUMBER'?d:l,task:task,answer:task==='NUMBER'?(parseInt(d)%2===0?'EVEN':'ODD'):(('AEIOU'.indexOf(l)>=0)?'VOWEL':'CONSONANT')});
  }
  _TASKSWITCH=makeTask('taskswitch','taskswitchScreen',taskTrials('TASKSWITCH',8,40,isPractice),isPractice,function(S){S.si=0;S.waiting=false;S.stimOn=0;S.prevTask='';S.T(tsNext,600);},null,function(log){
    window._taskswitch_log=log;
    var sw=log.filter(function(r){return r.isSwitch&&r.rt;}),rep=log.filter(function(r){return !r.isSwitch&&r.rt;});
    var swRT=sw.length?(sw.reduce(function(a,b){return a+b.rt;},0)/sw.length).toFixed(0):'—';
    var repRT=rep.length?(rep.reduce(function(a,b){return a+b.rt;},0)/rep.length).toFixed(0):'—';
    var cost=(sw.length&&rep.length)?((sw.reduce(function(a,b){return a+b.rt;},0)/sw.length)-(rep.reduce(function(a,b){return a+b.rt;},0)/rep.length)).toFixed(0):'—';
    $('taskswitchMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+swRT+'ms</div><div class="vm-lbl">Switch RT</div></div><div class="vrt-metric"><div class="vm-val">'+repRT+'ms</div><div class="vm-lbl">Repeat RT</div></div><div class="vrt-metric"><div class="vm-val">'+cost+'ms</div><div class="vm-lbl">Switch Cost</div></div>';
  });
  function tsNext(){
    if(_TASKSWITCH.trial>=_TASKSWITCH.maxTrials){_TASKSWITCH.end();return;}
    _TASKSWITCH.trial++;_TASKSWITCH.progress();$('taskswitchFeedback').textContent='';$('taskswitchFeedback').className='feedback';
    var item=STIMS[_TASKSWITCH.si%STIMS.length];_TASKSWITCH.si++;
    var isSwitch=_TASKSWITCH.prevTask!==''&&item.task!==_TASKSWITCH.prevTask;
    _TASKSWITCH.prevTask=item.task;_TASKSWITCH._item=item;_TASKSWITCH._isSwitch=isSwitch;
    $('taskswitchCue').textContent=item.task+': '+(item.task==='NUMBER'?'ODD(F) / EVEN(J)':'CONSONANT(F) / VOWEL(J)');
    $('taskswitchCue').style.color=item.task==='NUMBER'?'var(--gold)':'#5b9fda';
    $('taskswitchStim').textContent=item.stim;$('taskswitchStim').style.color=isSwitch?'#e07070':'var(--mid)';
    $('taskswitch-phase').textContent=isSwitch?'SWITCH':'REPEAT';
    _TASKSWITCH.waiting=true;_TASKSWITCH.stimOn=performance.now();triggerFlash();
    _TASKSWITCH.T(function(){if(_TASKSWITCH.waiting){$('taskswitchStim').textContent='';_TASKSWITCH.push({trial:_TASKSWITCH.trial,task:item.task,stim:item.stim,answer:item.answer,isSwitch:isSwitch,correct:false,rt:null});_TASKSWITCH.waiting=false;_TASKSWITCH.T(tsNext,400);}},1200);
  }
  document.addEventListener('keydown',function tsKey(e){
    if(!_TASKSWITCH||!_TASKSWITCH.active){document.removeEventListener('keydown',tsKey);return;}
    if(!_TASKSWITCH.waiting)return;
    var resp=e.key==='f'||e.key==='F'?'F':e.key==='j'||e.key==='J'?'J':null;if(!resp)return;
    e.preventDefault();_TASKSWITCH.waiting=false;
    var rt=+(performance.now()-_TASKSWITCH.stimOn).toFixed(1);
    var item=_TASKSWITCH._item;
    var correct=(item.task==='NUMBER'&&((item.answer==='ODD'&&resp==='F')||(item.answer==='EVEN'&&resp==='J')))||
                (item.task==='LETTER'&&((item.answer==='CONSONANT'&&resp==='F')||(item.answer==='VOWEL'&&resp==='J')));
    _TASKSWITCH.push({trial:_TASKSWITCH.trial,task:item.task,stim:item.stim,answer:item.answer,isSwitch:_TASKSWITCH._isSwitch,correct:correct,rt:rt});
    var fb=$('taskswitchFeedback');fb.textContent=correct?rt+'ms ✓':rt+'ms ✗';fb.className='feedback '+(correct?'ok':'err');
    $('taskswitchStim').textContent='';_TASKSWITCH.T(tsNext,350);
  });
}
function taskswitchExportCSV(){var log=window._taskswitch_log;if(!log)return;var blob=new Blob(['trial,task,stim,answer,is_switch,correct,rt_ms\n'+log.map(function(r){return[r.trial,r.task,r.stim,r.answer,r.isSwitch?1:0,r.correct?1:0,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='taskswitch_'+Date.now()+'.csv';a.click();}

// ── Dual Task ─────────────────────────────────────────────
var _DUALTASK;
function startDualTask(isPractice){
  var TARGETS='AEX';var LETTERS='BCDFGHJKLMNPQRSTVWXYZ'.split('');
  _DUALTASK=makeTask('dualtask','dualtaskScreen',taskTrials('DUALTASK',8,40,isPractice),isPractice,function(S){
    S.dotX=60;S.dotY=40;S.dotVx=0.8;S.dotVy=0.5;S.raf=null;S.letter='K';S.letterTimer=null;S.waiting=false;S.stimOn=0;S.T(dtStart,600);
  },null,function(log){
    window._dualtask_log=log;
    var l1=log.filter(function(r){return r.task==='letter'&&r.rt;}),l2=log.filter(function(r){return r.task==='dot'&&r.rt;});
    $('dualtaskMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+(l1.length?(l1.reduce(function(a,b){return a+b.rt;},0)/l1.length).toFixed(0):'—')+'ms</div><div class="vm-lbl">Letter RT</div></div><div class="vrt-metric"><div class="vm-val">'+(l2.length?(l2.reduce(function(a,b){return a+b.rt;},0)/l2.length).toFixed(0):'—')+'ms</div><div class="vm-lbl">Dot RT</div></div>';
  });
  function dtStart(S){
    var cvs=$('dualtaskCvs');if(!cvs)return;
    function moveDot(){if(!_DUALTASK.active)return;
      _DUALTASK.dotX+=_DUALTASK.dotVx;_DUALTASK.dotY+=_DUALTASK.dotVy;
      if(_DUALTASK.dotX<8||_DUALTASK.dotX>112)_DUALTASK.dotVx*=-1;
      if(_DUALTASK.dotY<8||_DUALTASK.dotY>72)_DUALTASK.dotVy*=-1;
      var ctx=cvs.getContext('2d');ctx.fillStyle='#060d14';ctx.fillRect(0,0,120,80);
      ctx.strokeStyle='rgba(138,180,208,0.15)';ctx.strokeRect(40,20,40,40);
      ctx.beginPath();ctx.arc(_DUALTASK.dotX,_DUALTASK.dotY,5,0,Math.PI*2);ctx.fillStyle='#d4b456';ctx.fill();
      _DUALTASK.raf=requestAnimationFrame(moveDot);
    }
    _DUALTASK.raf=requestAnimationFrame(moveDot);
    dtNextLetter();
  }
  function dtNextLetter(){
    if(!_DUALTASK.active)return;
    if(_DUALTASK.trial>=_DUALTASK.maxTrials){if(_DUALTASK.raf)cancelAnimationFrame(_DUALTASK.raf);_DUALTASK.end();return;}
    _DUALTASK.trial++;_DUALTASK.progress();
    var isTarget=Math.random()<0.2;
    var ltr=isTarget?TARGETS[Math.floor(Math.random()*TARGETS.length)]:LETTERS[Math.floor(Math.random()*LETTERS.length)];
    _DUALTASK.letter=ltr;_DUALTASK._isLetterTarget=isTarget;
    $('dualtaskLetter').textContent=ltr;$('dualtaskLetter').style.color=isTarget?'var(--gold)':'var(--mid)';
    $('dualtask-trial').textContent='Trial '+_DUALTASK.trial+'/'+_DUALTASK.maxTrials;
    _DUALTASK.waiting=true;_DUALTASK.stimOn=performance.now();triggerFlash();
    _DUALTASK.letterTimer=setTimeout(function(){if(_DUALTASK.waiting){_DUALTASK.waiting=false;if(isTarget)_DUALTASK.push({trial:_DUALTASK.trial,task:'letter',letter:ltr,isTarget:true,correct:false,rt:null});dtNextLetter();}},600);
  }
  document.addEventListener('keydown',function dtKey(e){
    if(!_DUALTASK||!_DUALTASK.active){document.removeEventListener('keydown',dtKey);return;}
    if((e.key==='f'||e.key==='F')&&_DUALTASK.waiting){
      e.preventDefault();_DUALTASK.waiting=false;clearTimeout(_DUALTASK.letterTimer);
      var rt=+(performance.now()-_DUALTASK.stimOn).toFixed(1);
      _DUALTASK.push({trial:_DUALTASK.trial,task:'letter',letter:_DUALTASK.letter,isTarget:_DUALTASK._isLetterTarget,correct:_DUALTASK._isLetterTarget,rt:rt});
      var fb=$('dualtaskFeedback');fb.textContent=_DUALTASK._isLetterTarget?rt+'ms ✓':rt+'ms ✗ FA';fb.className='feedback '+(_DUALTASK._isLetterTarget?'ok':'err');
      setTimeout(function(){dtNextLetter();},200);
    }
    if((e.key==='j'||e.key==='J')){
      e.preventDefault();var rt2=+(performance.now()-_DUALTASK.stimOn).toFixed(1);
      _DUALTASK.push({trial:_DUALTASK.trial,task:'dot',correct:true,rt:rt2});
    }
  });
}
function dualtaskExportCSV(){var log=window._dualtask_log;if(!log)return;var blob=new Blob(['trial,task,letter,is_target,correct,rt_ms\n'+log.map(function(r){return[r.trial,r.task,r.letter||'',r.isTarget!=null?r.isTarget?1:0:'',r.correct?1:0,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='dualtask_'+Date.now()+'.csv';a.click();}

// ── Attentional Blink ─────────────────────────────────────
var _ATTBLINK;
function startAttBlink(isPractice){
  var STREAM='BCDFGHJKLMNPQRSTVWYZ'.split('');
  _ATTBLINK=makeTask('attblink','attblinkScreen',taskTrials('ATTBLINK',10,30,isPractice),isPractice,function(S){S.T1pos=-1;S.T2pos=-1;S.streamPos=0;S.inTrial=false;S.responses=[];S.streamTimer=null;S.T(abNewTrial,800);},null,function(log){
    window._attblink_log=log;
    var blink=log.filter(function(r){return r.lag<=5&&r.lag>0;}),late=log.filter(function(r){return r.lag>5;});
    var blinkAcc=blink.length?(blink.filter(function(r){return r.T2hit;}).length/blink.length*100).toFixed(0):'—';
    var lateAcc=late.length?(late.filter(function(r){return r.T2hit;}).length/late.length*100).toFixed(0):'—';
    $('attblinkMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+blinkAcc+'%</div><div class="vm-lbl">Blink window T2 (lag 1–5)</div></div><div class="vrt-metric"><div class="vm-val">'+lateAcc+'%</div><div class="vm-lbl">Late T2 (lag 6+)</div></div>';
  });
  function abNewTrial(){
    if(_ATTBLINK.trial>=_ATTBLINK.maxTrials){_ATTBLINK.end();return;}
    _ATTBLINK.trial++;_ATTBLINK.progress();
    $('attblink-trial').textContent='Trial '+_ATTBLINK.trial+'/'+_ATTBLINK.maxTrials;$('attblinkFeedback').textContent='';$('attblinkFeedback').className='feedback';
    _ATTBLINK.responses=[];
    // Build stream: 8 distractors, T1, lag 1-8, T2, 4 more distractors
    var lag=1+Math.floor(Math.random()*8);
    var stream=[];
    for(var i=0;i<8;i++)stream.push({ltr:STREAM[Math.floor(Math.random()*STREAM.length)],target:false});
    stream.push({ltr:'A',target:true,isT1:true});
    for(var i=1;i<lag;i++)stream.push({ltr:STREAM[Math.floor(Math.random()*STREAM.length)],target:false});
    stream.push({ltr:'X',target:true,isT2:true,lag:lag});
    for(var i=0;i<4;i++)stream.push({ltr:STREAM[Math.floor(Math.random()*STREAM.length)],target:false});
    _ATTBLINK._stream=stream;_ATTBLINK._lag=lag;_ATTBLINK._si=0;_ATTBLINK._T2hit=false;_ATTBLINK._T2pos=-1;
    stream.forEach(function(s,i){if(s.isT2)_ATTBLINK._T2pos=i;});
    abShowNext();
  }
  function abShowNext(){
    if(!_ATTBLINK.active)return;
    var si=_ATTBLINK._si;var stream=_ATTBLINK._stream;
    if(si>=stream.length){
      // Report
      _ATTBLINK.push({trial:_ATTBLINK.trial,lag:_ATTBLINK._lag,T2hit:_ATTBLINK._T2hit});
      var fb=$('attblinkFeedback');fb.textContent=_ATTBLINK._T2hit?'T2 seen ✓':'T2 missed ✗';fb.className='feedback '+(_ATTBLINK._T2hit?'ok':'err');
      _ATTBLINK.T(abNewTrial,800);return;
    }
    var item=stream[si];_ATTBLINK._si++;
    $('attblinkStim').textContent=item.ltr;
    $('attblinkStim').style.color=item.target?'var(--gold)':'var(--mid)';
    $('attblink-phase').textContent=item.isT1?'T1':item.isT2?'T2 (lag '+_ATTBLINK._lag+')':'—';
    triggerFlash();
    _ATTBLINK.T(function(){$('attblinkStim').textContent='';_ATTBLINK.T(abShowNext,20);},100);
  }
  document.addEventListener('keydown',function abKey(e){
    if(!_ATTBLINK||!_ATTBLINK.active){document.removeEventListener('keydown',abKey);return;}
    if(e.code==='Space'){e.preventDefault();
      // If we're past T2 in the stream, record T2 hit
      if(_ATTBLINK._si>_ATTBLINK._T2pos)_ATTBLINK._T2hit=true;
    }
  });
}
function attblinkExportCSV(){var log=window._attblink_log;if(!log)return;var blob=new Blob(['trial,lag,T2_hit\n'+log.map(function(r){return[r.trial,r.lag,r.T2hit?1:0].join(',');}).join('\n')],{type:'text/csv'});var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='attblink_'+Date.now()+'.csv';a.click();}

// ── Subitizing ────────────────────────────────────────────
var _SUBITIZE;
function startSubitize(isPractice){
  _SUBITIZE=makeTask('subitize','subitizeScreen',taskTrials('SUBITIZE',8,40,isPractice),isPractice,function(S){S.n=0;S.waiting=false;S.stimOn=0;S.T(subNext,600);},null,function(log){
    window._subitize_log=log;
    var sub=log.filter(function(r){return r.n<=4&&r.rt;}),cnt=log.filter(function(r){return r.n>4&&r.rt;});
    var subRT=sub.length?(sub.reduce(function(a,b){return a+b.rt;},0)/sub.length).toFixed(0):'—';
    var cntRT=cnt.length?(cnt.reduce(function(a,b){return a+b.rt;},0)/cnt.length).toFixed(0):'—';
    $('subitizeMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+subRT+'ms</div><div class="vm-lbl">Subitize RT (1–4)</div></div><div class="vrt-metric"><div class="vm-val">'+cntRT+'ms</div><div class="vm-lbl">Counting RT (5–8)</div></div><div class="vrt-metric"><div class="vm-val">'+(log.filter(function(r){return r.correct;}).length/log.length*100).toFixed(0)+'%</div><div class="vm-lbl">Accuracy</div></div>';
  });
  function subNext(){
    if(_SUBITIZE.trial>=_SUBITIZE.maxTrials){_SUBITIZE.end();return;}
    _SUBITIZE.trial++;_SUBITIZE.progress();$('subitizeFeedback').textContent='';$('subitizeFeedback').className='feedback';
    var n=1+Math.floor(Math.random()*8);_SUBITIZE.n=n;
    var cvs=$('subitizeCvs'),ctx=cvs.getContext('2d');ctx.fillStyle='#060d14';ctx.fillRect(0,0,280,160);
    var pts=[];var seed=n*1337;
    for(var i=0;i<n;i++){var placed=false;var tries=0;while(!placed&&tries<200){var x=25+Math.random()*230,y=20+Math.random()*120;var ok=pts.every(function(p){return Math.hypot(p.x-x,p.y-y)>22;});if(ok){pts.push({x:x,y:y});placed=true;}tries++;}if(!placed)pts.push({x:25+i*25,y:80});}
    pts.forEach(function(p){ctx.beginPath();ctx.arc(p.x,p.y,8,0,Math.PI*2);ctx.fillStyle=n<=4?'var(--gold)':'rgba(138,180,208,0.7)';ctx.fill();});
    _SUBITIZE.waiting=true;_SUBITIZE.stimOn=performance.now();triggerFlash();
    _SUBITIZE.T(function(){if(_SUBITIZE.waiting){ctx.fillStyle='#060d14';ctx.fillRect(0,0,280,160);
      _SUBITIZE.push({trial:_SUBITIZE.trial,n:n,responded:false,correct:false,rt:null});_SUBITIZE.waiting=false;_SUBITIZE.T(subNext,400);}},1500);
  }
  document.addEventListener('keydown',function subKey(e){
    if(!_SUBITIZE||!_SUBITIZE.active){document.removeEventListener('keydown',subKey);return;}
    if(!_SUBITIZE.waiting)return;
    var num=parseInt(e.key);if(isNaN(num)||num<1||num>9)return;e.preventDefault();
    _SUBITIZE.waiting=false;var rt=+(performance.now()-_SUBITIZE.stimOn).toFixed(1);
    var correct=num===_SUBITIZE.n;
    _SUBITIZE.push({trial:_SUBITIZE.trial,n:_SUBITIZE.n,responded:num,correct:correct,rt:rt});
    var fb=$('subitizeFeedback');fb.textContent=correct?rt+'ms ✓':'✗ ('+_SUBITIZE.n+' dots)';fb.className='feedback '+(correct?'ok':'err');
    var ctx=$('subitizeCvs').getContext('2d');ctx.fillStyle='#060d14';ctx.fillRect(0,0,280,160);
    _SUBITIZE.T(subNext,350);
  });
}
function subitizeExportCSV(){var log=window._subitize_log;if(!log)return;var blob=new Blob(['trial,n_dots,response,correct,rt_ms\n'+log.map(function(r){return[r.trial,r.n,r.responded!=null?r.responded:'',r.correct?1:0,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='subitize_'+Date.now()+'.csv';a.click();}

// ── Lexical Decision ──────────────────────────────────────
var _LEXDEC;
var LEXDEC_WORDS={high:['TIME','YEAR','PEOPLE','WAY','DAY','MAN','CHILD','WORLD','HAND','PLACE','CASE','WEEK','COMPANY','SYSTEM','PROGRAM','QUESTION'],low:['SERAPH','FEUDAL','RAMPART','CHIMERA','ZEPHYR','QUORUM','STIGMA','ALCOVE','MYRIAD','VESTIBULE'],nonwords:['FLURP','BLARG','TROKE','VAMBLE','SNORGE','PRITH','GLOME','SWORF','KLINCH','PLOAVE','DRUVE','STAMPER','NORFLE','BLENDIX']};
function startLexDec(isPractice){
  var deck=[];LEXDEC_WORDS.high.forEach(function(w){deck.push({word:w,real:true,freq:'high'});});LEXDEC_WORDS.low.forEach(function(w){deck.push({word:w,real:true,freq:'low'});});LEXDEC_WORDS.nonwords.forEach(function(w){deck.push({word:w,real:false,freq:'nw'});});deck.sort(function(){return Math.random()-0.5;});
  _LEXDEC=makeTask('lexdec','lexdecScreen',taskTrials('LEXDEC',8,40,isPractice),isPractice,function(S){S.di=0;S.waiting=false;S.stimOn=0;S.T(ldNext,600);},null,function(log){
    window._lexdec_log=log;
    var hi=log.filter(function(r){return r.freq==='high'&&r.rt;}),lo=log.filter(function(r){return r.freq==='low'&&r.rt;}),nw=log.filter(function(r){return r.freq==='nw'&&r.rt;});
    $('lexdecMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+(hi.length?(hi.reduce(function(a,b){return a+b.rt;},0)/hi.length).toFixed(0):'—')+'ms</div><div class="vm-lbl">High-freq RT</div></div><div class="vrt-metric"><div class="vm-val">'+(lo.length?(lo.reduce(function(a,b){return a+b.rt;},0)/lo.length).toFixed(0):'—')+'ms</div><div class="vm-lbl">Low-freq RT</div></div><div class="vrt-metric"><div class="vm-val">'+(nw.length?(nw.reduce(function(a,b){return a+b.rt;},0)/nw.length).toFixed(0):'—')+'ms</div><div class="vm-lbl">Non-word RT</div></div>';
  });
  function ldNext(){
    if(_LEXDEC.trial>=_LEXDEC.maxTrials){_LEXDEC.end();return;}
    _LEXDEC.trial++;_LEXDEC.progress();$('lexdecFeedback').textContent='';$('lexdecFeedback').className='feedback';
    var item=deck[_LEXDEC.di%deck.length];_LEXDEC.di++;_LEXDEC._item=item;
    $('lexdecWord').textContent=item.word;$('lexdec-phase').textContent=item.real?'WORD':'NON-WORD';
    _LEXDEC.waiting=true;_LEXDEC.stimOn=performance.now();triggerFlash();
    _LEXDEC.T(function(){if(_LEXDEC.waiting){$('lexdecWord').textContent='';_LEXDEC.push({trial:_LEXDEC.trial,word:item.word,real:item.real,freq:item.freq,correct:false,rt:null});_LEXDEC.waiting=false;_LEXDEC.T(ldNext,400);}},1500);
  }
  document.addEventListener('keydown',function ldKey(e){
    if(!_LEXDEC||!_LEXDEC.active){document.removeEventListener('keydown',ldKey);return;}
    if(!_LEXDEC.waiting)return;
    var resp=e.key==='f'||e.key==='F'?true:e.key==='j'||e.key==='J'?false:null;if(resp===null)return;
    e.preventDefault();_LEXDEC.waiting=false;var rt=+(performance.now()-_LEXDEC.stimOn).toFixed(1);
    var item=_LEXDEC._item;var correct=resp===item.real;
    _LEXDEC.push({trial:_LEXDEC.trial,word:item.word,real:item.real,freq:item.freq,correct:correct,rt:rt});
    var fb=$('lexdecFeedback');fb.textContent=correct?rt+'ms ✓':rt+'ms ✗';fb.className='feedback '+(correct?'ok':'err');
    $('lexdecWord').textContent='';_LEXDEC.T(ldNext,350);
  });
}
function lexdecExportCSV(){var log=window._lexdec_log;if(!log)return;var blob=new Blob(['trial,word,real,freq,correct,rt_ms\n'+log.map(function(r){return[r.trial,r.word,r.real?1:0,r.freq,r.correct?1:0,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='lexdec_'+Date.now()+'.csv';a.click();}

// ── Semantic Fluency ──────────────────────────────────────
var _SEMFLUENCY;
function startSemFluency(isPractice){
  var CATS=[{label:'ANIMALS',dummy:['cat','dog','bird','fish','lion','tiger','bear','wolf','horse','rabbit','cow','pig','sheep','elephant','monkey','snake','eagle','shark','whale','frog']},{label:'FOOD',dummy:['apple','bread','rice','soup','fish','pizza','pasta','salad','cheese','milk','egg','chicken','cake','coffee','tea','potato','carrot','orange','banana','steak']},{label:'TOOLS',dummy:['hammer','saw','drill','wrench','pliers','screwdriver','chisel','file','level','tape','nail','bolt','clamp','brush','roller','shovel','rake','axe','knife','scissors']}];
  var catIdx=Math.floor(Math.random()*CATS.length);var cat=CATS[catIdx];
  var timeLimit=isPractice?30000:60000;
  _SEMFLUENCY=makeTask('semfluency','semfluencyScreen',1,isPractice,function(S){
    S.words=[];S.startTime=performance.now();S.timer=null;
    $('semfluencyCategory').textContent='Name as many '+cat.label+' as possible';
    $('semfluencyList').innerHTML='';$('semfluencyInput').value='';$('semfluencyInput').disabled=false;$('semfluencyInput').focus();
    function updateTimer(){if(!_SEMFLUENCY.active)return;var elapsed=performance.now()-_SEMFLUENCY.startTime;var remaining=Math.max(0,(timeLimit-elapsed)/1000);$('semfluency-time').textContent=remaining.toFixed(0)+'s';$('semfluencyProgressBar').style.width=(elapsed/timeLimit*100).toFixed(1)+'%';if(elapsed>=timeLimit){$('semfluencyInput').disabled=true;_SEMFLUENCY.end();}else{_SEMFLUENCY.timer=requestAnimationFrame(updateTimer);}}
    _SEMFLUENCY.timer=requestAnimationFrame(updateTimer);
    $('semfluencyInput').addEventListener('keydown',function sfKey(e){
      if(!_SEMFLUENCY||!_SEMFLUENCY.active){$('semfluencyInput').removeEventListener('keydown',sfKey);return;}
      if(e.key==='Enter'){var w=$('semfluencyInput').value.trim().toLowerCase();$('semfluencyInput').value='';
        if(w.length>1&&_SEMFLUENCY.words.indexOf(w)<0){_SEMFLUENCY.words.push(w);var t=document.createElement('span');t.textContent=w;t.style.cssText='font-size:0.8rem;font-family:"Source Code Pro",monospace;color:var(--gold);background:rgba(212,180,86,0.1);border:1px solid rgba(212,180,86,0.3);padding:2px 8px;border-radius:2px;';$('semfluencyList').appendChild(t);$('semfluency-trial').textContent=_SEMFLUENCY.words.length+' words';}}
    });
  },null,function(){
    window._semfluency_log=_SEMFLUENCY.words;
    $('semfluencyMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+_SEMFLUENCY.words.length+'</div><div class="vm-lbl">Total Words</div></div><div class="vrt-metric"><div class="vm-val">'+cat.label+'</div><div class="vm-lbl">Category</div></div>';
  });
}
function semfluencyExportCSV(){var log=window._semfluency_log;if(!log)return;var blob=new Blob(['rank,word\n'+log.map(function(w,i){return(i+1)+','+w;}).join('\n')],{type:'text/csv'});var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='semfluency_'+Date.now()+'.csv';a.click();}

// ── Prospective Memory ────────────────────────────────────
var _PROSMEM;
var PROSMEM_WORDS=['CHAIR','TABLE','RIVER','STONE','CLOUD','SHELF','FENCE','BRUSH','TIGER','PENCIL','GARDEN','WINDOW','MIRROR','CARPET','BOTTLE','CANDLE'];
function startProsMem(isPractice){
  var PM_TARGET=PROSMEM_WORDS[Math.floor(Math.random()*PROSMEM_WORDS.length)];
  var ONGOING_WORDS=PROSMEM_WORDS.filter(function(w){return w!==PM_TARGET;});
  var deck=[];for(var i=0;i<20;i++)deck.push({word:ONGOING_WORDS[i%ONGOING_WORDS.length],isPM:false});
  var pmPos=[5,12];pmPos.forEach(function(p){deck[p]={word:PM_TARGET,isPM:true};});
  deck.sort(function(a,b){return a.isPM&&!b.isPM?1:!a.isPM&&b.isPM?-1:Math.random()-0.5;});
  $('prosmemTargetWord').textContent=PM_TARGET;
  _PROSMEM=makeTask('prosmem','prosmemScreen',taskTrials('PROSMEM',8,30,isPractice),isPractice,function(S){S.di=0;S.waiting=false;S.stimOn=0;S.pmHits=0;S.pmMisses=0;S.T(pmNext,800);},null,function(log){
    window._prosmem_log=log;
    var pmTrials=log.filter(function(r){return r.isPM;});
    var pmHits=pmTrials.filter(function(r){return r.pmHit;}).length;
    $('prosmemMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+pmHits+'/'+pmTrials.length+'</div><div class="vm-lbl">PM Hits</div></div><div class="vrt-metric"><div class="vm-val">'+(log.filter(function(r){return !r.isPM&&r.correct;}).length/Math.max(1,log.filter(function(r){return !r.isPM;}).length)*100).toFixed(0)+'%</div><div class="vm-lbl">Ongoing Accuracy</div></div>';
  });
  function pmNext(){
    if(_PROSMEM.trial>=_PROSMEM.maxTrials){_PROSMEM.end();return;}
    _PROSMEM.trial++;_PROSMEM.progress();$('prosmemFeedback').textContent='';$('prosmemFeedback').className='feedback';
    var item=deck[_PROSMEM.di%deck.length];_PROSMEM.di++;_PROSMEM._item=item;
    $('prosmemWord').textContent=item.word;$('prosmemWord').style.color=item.isPM?'var(--gold)':'var(--text)';
    _PROSMEM.waiting=true;_PROSMEM.stimOn=performance.now();_PROSMEM._pmResponded=false;triggerFlash();
    _PROSMEM.T(function(){if(_PROSMEM.waiting){
      $('prosmemWord').textContent='';_PROSMEM.push({trial:_PROSMEM.trial,word:item.word,isPM:item.isPM,pmHit:false,correct:false,rt:null});
      _PROSMEM.waiting=false;if(item.isPM){var fb=$('prosmemFeedback');fb.textContent=tr('PM MISS');fb.className='feedback err';}
      _PROSMEM.T(pmNext,400);}},1200);
  }
  document.addEventListener('keydown',function pmKey(e){
    if(!_PROSMEM||!_PROSMEM.active){document.removeEventListener('keydown',pmKey);return;}
    if(!_PROSMEM.waiting)return;
    var rt=+(performance.now()-_PROSMEM.stimOn).toFixed(1);
    var item=_PROSMEM._item;
    if(e.code==='Space'){e.preventDefault();_PROSMEM.waiting=false;
      _PROSMEM.push({trial:_PROSMEM.trial,word:item.word,isPM:item.isPM,pmHit:item.isPM,correct:item.isPM,rt:rt});
      var fb=$('prosmemFeedback');fb.textContent=item.isPM?rt+'ms ✓ PM HIT':rt+'ms ✗ FALSE PM';fb.className='feedback '+(item.isPM?'ok':'err');
      $('prosmemWord').textContent='';_PROSMEM.T(pmNext,350);}
    else if(e.key==='f'||e.key==='F'||e.key==='j'||e.key==='J'){e.preventDefault();_PROSMEM.waiting=false;
      var isVowel='AEIOU'.indexOf(item.word[0])>=0;var resp=e.key==='f'||e.key==='F';var correct=resp===isVowel;
      _PROSMEM.push({trial:_PROSMEM.trial,word:item.word,isPM:item.isPM,pmHit:false,correct:correct,rt:rt});
      var fb2=$('prosmemFeedback');fb2.textContent=correct?rt+'ms ✓':rt+'ms ✗';fb2.className='feedback '+(correct?'ok':'err');
      $('prosmemWord').textContent='';_PROSMEM.T(pmNext,350);}
  });
}
function prosmemExportCSV(){var log=window._prosmem_log;if(!log)return;var blob=new Blob(['trial,word,is_pm,pm_hit,correct,rt_ms\n'+log.map(function(r){return[r.trial,r.word,r.isPM?1:0,r.pmHit?1:0,r.correct?1:0,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='prosmem_'+Date.now()+'.csv';a.click();}

// ── Spatial Working Memory ────────────────────────────────
var _SPATWM;
function startSpatWM(isPractice){
  var GRID_SIZE=4;var CELLS=GRID_SIZE*GRID_SIZE;
  _SPATWM=makeTask('spatwm','spatwmScreen',1,isPractice,function(S){
    S.span=0;S.maxSpan=0;S.errors=0;
    $('spatwmStimPhase').style.display='flex';      // reveal the grid canvas (was hidden)
    $('spatwmResultsPhase').style.display='none';
    S.T(swmNewSpan,600);
  },null,function(){
    $('spatwmMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+_SPATWM.maxSpan+'</div><div class="vm-lbl">Spatial Span</div></div>';
  });
  var bw=56,gap=8,ox=($('spatwmCvs').width-(GRID_SIZE*(bw+gap)))/2,oy=($('spatwmCvs').height-(GRID_SIZE*(bw+gap)))/2;
  function cellXY(i){var col=i%GRID_SIZE,row=Math.floor(i/GRID_SIZE);return[ox+col*(bw+gap),oy+row*(bw+gap)];}
  function drawGrid(highlighted,recalled,wrong){
    var cvs=$('spatwmCvs'),ctx=cvs.getContext('2d');ctx.fillStyle='#060d14';ctx.fillRect(0,0,cvs.width,cvs.height);
    for(var i=0;i<CELLS;i++){var xy=cellXY(i);var hi=highlighted&&highlighted.indexOf(i)>=0;var rc=recalled&&recalled.indexOf(i)>=0;var wr=wrong&&wrong.indexOf(i)>=0;ctx.strokeStyle=wr?'#e07070':hi?'#d4b456':rc?'#5b9fda':'rgba(138,180,208,0.25)';ctx.lineWidth=1.5;ctx.fillStyle=wr?'rgba(224,80,80,0.18)':hi?'rgba(212,180,86,0.2)':rc?'rgba(91,159,218,0.15)':'#0a1620';ctx.fillRect(xy[0],xy[1],bw,bw);ctx.strokeRect(xy[0],xy[1],bw,bw);}
  }
  function swmNewSpan(){
    if(!_SPATWM.active)return;
    _SPATWM.span++;if(_SPATWM.span>CELLS)_SPATWM.span=CELLS;
    $('spatwm-phase').textContent='STUDY — span '+_SPATWM.span;$('spatwmInstruct').textContent='Watch the sequence';$('spatwmFeedback').textContent='';$('spatwm-trial').textContent='Span '+_SPATWM.span;
    var seq=[];var pool=Array.from({length:CELLS},function(_,i){return i;});while(seq.length<_SPATWM.span){var pick=pool.splice(Math.floor(Math.random()*pool.length),1)[0];seq.push(pick);}
    _SPATWM._seq=seq;_SPATWM._recall=[];_SPATWM._phase='study';
    // Show each cell in sequence
    var delay=0;seq.forEach(function(cell,i){_SPATWM.T(function(){drawGrid([cell]);triggerFlash();_SPATWM.T(function(){drawGrid([]);},400);},delay);delay+=600;});
    _SPATWM.T(function(){drawGrid();$('spatwmInstruct').textContent='Click the boxes in the same order';_SPATWM._phase='recall';$('spatwm-phase').textContent=tr('RECALL');
      $('spatwmCvs').onclick=function(e){if(_SPATWM._phase!=='recall')return;var r=e.target.getBoundingClientRect();var mx=e.clientX-r.left,my=e.clientY-r.top;var hit=-1;for(var i=0;i<CELLS;i++){var xy=cellXY(i);if(mx>=xy[0]&&mx<xy[0]+bw&&my>=xy[1]&&my<xy[1]+bw){hit=i;break;}}if(hit<0)return;_SPATWM._recall.push(hit);drawGrid(null,_SPATWM._recall.slice(0,-1),[hit]);
        if(_SPATWM._recall.length===_SPATWM._seq.length){
          var correct=_SPATWM._seq.every(function(v,i){return v===_SPATWM._recall[i];});
          $('spatwmCvs').onclick=null;
          if(correct){_SPATWM.maxSpan=_SPATWM.span;drawGrid(null,_SPATWM._recall);$('spatwmFeedback').textContent='✓ Correct!';$('spatwmFeedback').className='feedback ok';_SPATWM.errors=0;_SPATWM.T(swmNewSpan,1000);}
          else{drawGrid(null,null,_SPATWM._recall);$('spatwmFeedback').textContent='✗ Incorrect';$('spatwmFeedback').className='feedback err';_SPATWM.errors++;
            if(_SPATWM.errors>=2){_SPATWM.T(function(){_SPATWM.end();},1000);}else{_SPATWM.T(swmNewSpan,1000);}}}};
    },delay+200);
  }
}
function spatwmExportCSV(){$('spatwmMetrics').innerHTML+='';alert('Spatial WM span: '+(_SPATWM?_SPATWM.maxSpan:'—'));}


// ══════════════════════════════════════════════════════════
// MoCA — Montreal Cognitive Assessment
// ══════════════════════════════════════════════════════════

// Anim: show score card with domain breakdown

// Register with ANIM_MAP dispatcher

// ── MoCA Task Implementation ──────────────────────────────
var _MOCA_STATE = null;

var MOCA_DOMAINS = [
  {
    id:'visuospatial', label:'Visuospatial / Executive', maxPts:5,
    items:[
      {id:'tmt',label:'Trail Making (alternating numbers & letters)',pts:1,type:'checkbox'},
      {id:'cube',label:'Copy 3-D cube',pts:1,type:'checkbox'},
      {id:'clock_contour',label:'Clock — contour',pts:1,type:'checkbox'},
      {id:'clock_numbers',label:'Clock — numbers',pts:1,type:'checkbox'},
      {id:'clock_hands',label:'Clock — hands (11:10)',pts:1,type:'checkbox'}
    ]
  },
  {
    id:'naming', label:'Naming', maxPts:3,
    items:[
      {id:'lion',label:'Lion',pts:1,type:'checkbox'},
      {id:'rhinoceros',label:'Rhinoceros',pts:1,type:'checkbox'},
      {id:'camel',label:'Camel',pts:1,type:'checkbox'}
    ]
  },
  {
    id:'memory', label:'Memory (delayed recall — score at end)', maxPts:5,
    items:[
      {id:'mem_face',label:'FACE',pts:1,type:'checkbox'},
      {id:'mem_velvet',label:'VELVET',pts:1,type:'checkbox'},
      {id:'mem_church',label:'CHURCH',pts:1,type:'checkbox'},
      {id:'mem_daisy',label:'DAISY',pts:1,type:'checkbox'},
      {id:'mem_red',label:'RED',pts:1,type:'checkbox'}
    ]
  },
  {
    id:'attention', label:'Attention', maxPts:6,
    items:[
      {id:'fwd_span',label:'Forward digit span (2-1-8-5-4)',pts:1,type:'checkbox'},
      {id:'bwd_span',label:'Backward digit span (7-4-2)',pts:1,type:'checkbox'},
      {id:'vigilance',label:'Vigilance (tap on letter A)',pts:1,type:'checkbox'},
      {id:'serial7_1',label:'Serial 7s: 93',pts:1,type:'checkbox'},
      {id:'serial7_2',label:'Serial 7s: 86',pts:1,type:'checkbox'},
      {id:'serial7_3',label:'Serial 7s: 79 / 72 / 65',pts:1,type:'checkbox'}
    ]
  },
  {
    id:'language', label:'Language', maxPts:3,
    items:[
      {id:'repeat1',label:'Repeat: "I only know that John is the one to help today."',pts:1,type:'checkbox'},
      {id:'repeat2',label:'Repeat: "The cat always hid under the couch when dogs were in the room."',pts:1,type:'checkbox'},
      {id:'fluency',label:'Fluency: ≥11 words beginning with F in 60s',pts:1,type:'checkbox'}
    ]
  },
  {
    id:'abstraction', label:'Abstraction', maxPts:2,
    items:[
      {id:'abs1',label:'Train / bicycle → vehicles (modes of transport)',pts:1,type:'checkbox'},
      {id:'abs2',label:'Ruler / watch → measurement instruments',pts:1,type:'checkbox'}
    ]
  },
  {
    id:'orientation', label:'Orientation', maxPts:6,
    items:[
      {id:'date',label:'Date',pts:1,type:'checkbox'},
      {id:'month',label:'Month',pts:1,type:'checkbox'},
      {id:'year',label:'Year',pts:1,type:'checkbox'},
      {id:'day',label:'Day of week',pts:1,type:'checkbox'},
      {id:'place',label:'Place',pts:1,type:'checkbox'},
      {id:'city',label:'City',pts:1,type:'checkbox'}
    ]
  }
];

function startMoCA(isPractice){
  _MOCA_STATE = { isPractice:isPractice, scores:{}, education:false, startTime:performance.now() };
  hideAll();
  var screen = document.getElementById('mocaScreen','digcanScreen','abrScreen','p1n1Screen','cnvwScreen','thalphaScreen','symsearchScreen','phonflueScreen','jloScreen','pasatScreen','ravltScreen','cvltScreen','igtScreen','tolScreen','rmetScreen','rewpScreen');
  if(!screen){ console.error('mocaScreen not found'); return; }
  screen.style.display='flex';
  document.getElementById('mocaPracticeBanner').style.display=isPractice?'block':'none';
  document.getElementById('si-task').textContent='MoCA'+(isPractice?' (PRAC)':'');
  document.getElementById('exportBtn').disabled=true;
  renderMoCAForm();
}

function renderMoCAForm(){
  var container=document.getElementById('mocaItems');
  if(!container)return;
  container.innerHTML='';
  MOCA_DOMAINS.forEach(function(domain){
    var domDiv=document.createElement('div');
    domDiv.style.cssText='margin-bottom:16px;border:1px solid #1a2f44;border-radius:3px;overflow:hidden;';
    var header=document.createElement('div');
    header.style.cssText='background:#0a1620;padding:6px 12px;display:flex;justify-content:space-between;align-items:center;';
    header.innerHTML='<span style="font-family:sans-serif;font-size:1rem;color:var(--gold);letter-spacing:0.05em;">'+domain.label+'</span>'+
      "<span id=\"moca-dom-score-"+domain.id+"\" style=\"font-family:monospace;font-size:0.82rem;color:var(--gold);\">0 / "+domain.maxPts+"</span>";
    domDiv.appendChild(header);
    domain.items.forEach(function(item){
      var row=document.createElement('div');
      row.style.cssText='padding:6px 12px;display:flex;align-items:center;gap:10px;border-top:1px solid #1a2f44;cursor:pointer;transition:background 0.12s;';
      row.onmouseenter=function(){this.style.background='rgba(212,180,86,0.04)';};
      row.onmouseleave=function(){this.style.background='';};
      var cb=document.createElement('input');
      cb.type='checkbox';cb.id='moca-cb-'+item.id;cb.style.cssText='accent-color:var(--gold);width:16px;height:16px;cursor:pointer;flex-shrink:0;';
      cb.addEventListener('change',function(){mocaUpdateScore();});
      var lbl=document.createElement('label');
      lbl.htmlFor='moca-cb-'+item.id;
      lbl.style.cssText='font-size:0.88rem;color:var(--mid);cursor:pointer;flex:1;line-height:1.5;';
      lbl.textContent=item.label+' ('+item.pts+' pt)';
      row.appendChild(cb);row.appendChild(lbl);
      row.addEventListener('click',function(e){if(e.target!==cb){cb.checked=!cb.checked;mocaUpdateScore();}});
      domDiv.appendChild(row);
    });
    container.appendChild(domDiv);
  });
  // Education adjustment
  var eduDiv=document.createElement('div');
  eduDiv.style.cssText='padding:8px 12px;border:1px solid #1a2f44;border-radius:3px;display:flex;align-items:center;gap:10px;margin-bottom:16px;';
  eduDiv.innerHTML='<input type="checkbox" id="moca-edu-adj" style="accent-color:var(--gold);width:16px;height:16px;cursor:pointer;">'+
    '<label for="moca-edu-adj" style="font-size:0.88rem;color:var(--mid);cursor:pointer;">Education ≤12 years — add 1 point (adjusted score)</label>';
  eduDiv.querySelector('#moca-edu-adj').addEventListener('change',mocaUpdateScore);
  container.appendChild(eduDiv);
  mocaUpdateScore();
}

function mocaUpdateScore(){
  if(!_MOCA_STATE)return;
  var total=0;
  MOCA_DOMAINS.forEach(function(domain){
    var domScore=0;
    domain.items.forEach(function(item){
      var cb=document.getElementById('moca-cb-'+item.id);
      if(cb&&cb.checked) domScore+=item.pts;
    });
    _MOCA_STATE.scores[domain.id]=domScore;
    var domScoreEl=document.getElementById('moca-dom-score-'+domain.id);
    if(domScoreEl) domScoreEl.textContent=domScore+' / '+domain.maxPts;
    total+=domScore;
  });
  var edu=document.getElementById('moca-edu-adj');
  var adj=edu&&edu.checked?1:0;
  var adjusted=Math.min(30,total+adj);
  _MOCA_STATE.total=total;_MOCA_STATE.adjusted=adjusted;
  var scoreEl=document.getElementById('mocaTotalScore');
  if(scoreEl){
    scoreEl.textContent=adjusted;
    scoreEl.style.color=adjusted>=26?'#81c784':'#e07070';
  }
  var interpEl=document.getElementById('mocaInterp');
  if(interpEl){
    if(adjusted>=26) interpEl.textContent='Within normal range (≥26)';
    else if(adjusted>=18) interpEl.textContent='Mild cognitive impairment screen positive (<26)';
    else if(adjusted>=10) interpEl.textContent='Moderate impairment screen';
    else interpEl.textContent='Severe impairment screen';
    interpEl.style.color=adjusted>=26?'#81c784':'#e07070';
  }
}

function mocaFinish(){
  if(!_MOCA_STATE)return;
  mocaUpdateScore();
  var log=[{
    timestamp:new Date().toISOString(),
    total:_MOCA_STATE.total,
    adjusted:_MOCA_STATE.adjusted,
    duration_ms:+(performance.now()-_MOCA_STATE.startTime).toFixed(0),
    domains:JSON.stringify(_MOCA_STATE.scores)
  }];
  window._moca_log=log;
  document.getElementById('exportBtn').disabled=false;
  document.getElementById('mocaResultsPhase').style.display='block';
  document.getElementById('mocaFormPhase').style.display='none';
  document.getElementById('mocaFinalScore').textContent=_MOCA_STATE.adjusted+'/30';
  document.getElementById('mocaFinalScore').style.color=_MOCA_STATE.adjusted>=26?'#81c784':'#e07070';
  document.getElementById('mocaFinalInterp').textContent=_MOCA_STATE.adjusted>=26?'Within normal range':'Screen positive for cognitive impairment (<26)';
  updateSidebar();
}

function mocaExportCSV(){
  var log=window._moca_log;if(!log||!log.length)return;
  var rows=['timestamp,total_raw,total_adjusted,duration_ms,domain_scores'];
  log.forEach(function(r){ rows.push([r.timestamp,r.total,r.adjusted,r.duration_ms,'"'+r.domains+'"'].join(',')); });
  var blob=new Blob([rows.join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='moca_'+Date.now()+'.csv';a.click();
}

// ══════════════════════════════════════════════════════════
// RewP / FRN — Reward Positivity / Feedback-Related Negativity
// ══════════════════════════════════════════════════════════

// ── RewP Task ──────────────────────────────────────────────
var _REWP = null;

function startREWP(isPractice){
  var WIN_PROB = 0.5; // 50/50 gamble
  _REWP = {
    active:true, isPractice:isPractice, trial:0,
    maxTrials: taskTrials('REWP',8,40,isPractice),
    log:[], practiceLog:[], _timers:[], waiting:false, stimOn:0,
    wins:0, losses:0
  };
  function T(fn,ms){ var t=setTimeout(fn,ms); _REWP._timers.push(t); return t; }
  _REWP.T = T;
  _REWP.clear = function(){ _REWP._timers.forEach(clearTimeout); _REWP._timers=[]; };
  _REWP.push = function(row){ (_REWP.isPractice?_REWP.practiceLog:_REWP.log).push(row); };

  hideAll();
  $('rewpScreen').style.display='flex';
  $('rewpPracticeBanner').style.display=isPractice?'block':'none';
  $('rewpProgressBar').style.width='0%';
  $('rewpStimPhase').style.display='flex';
  $('rewpResultsPhase').style.display='none';
  $('rewpChoice').style.display='none';
  $('rewpFeedback').textContent='';
  $('rewpFeedbackText').textContent='';
  $('si-task').textContent='RewP'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;

  function rewpEnd(){
    _REWP.clear(); _REWP.active=false;
    $('rewpStimPhase').style.display='none';
    $('rewpProgressBar').style.width='100%';
    var log = isPractice ? _REWP.practiceLog : _REWP.log;
    if(isPractice){
      $('pcStats').innerHTML='WINS <span>'+_REWP.wins+'</span> / LOSSES <span>'+_REWP.losses+'</span>';
      hideAll(); $('practiceComplete').style.display='flex'; return;
    }
    $('exportBtn').disabled=false;
    window._rewp_log = log;
    var wins = log.filter(function(r){return r.outcome==='win';});
    var losses = log.filter(function(r){return r.outcome==='loss';});
    var winRT = wins.filter(function(r){return r.rt;});
    var lossRT = losses.filter(function(r){return r.rt;});
    var avgWinRT = winRT.length ? (winRT.reduce(function(a,b){return a+b.rt;},0)/winRT.length).toFixed(0) : '—';
    var avgLossRT = lossRT.length ? (lossRT.reduce(function(a,b){return a+b.rt;},0)/lossRT.length).toFixed(0) : '—';
    $('rewpMetrics').innerHTML=
      '<div class="vrt-metric"><div class="vm-val">'+wins.length+'</div><div class="vm-lbl">Wins</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+losses.length+'</div><div class="vm-lbl">Losses</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+avgWinRT+'ms</div><div class="vm-lbl">Win RT</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+avgLossRT+'ms</div><div class="vm-lbl">Loss RT</div></div>';
    $('rewpResultsPhase').style.display='block';
    cognosRecordResult('REWP','REWP',{score:($('rewpMetrics')||{textContent:''}).textContent.trim().replace(/\s+/g,' ').substring(0,120)},[]); updateSidebar();
  }

  function rewpNext(){
    if(!_REWP.active) return;
    if(_REWP.trial >= _REWP.maxTrials){ rewpEnd(); return; }
    _REWP.trial++;
    $('rewp-trial').textContent='Trial '+_REWP.trial+'/'+_REWP.maxTrials;
    $('rewpProgressBar').style.width=((_REWP.trial-1)/_REWP.maxTrials*100).toFixed(1)+'%';
    $('rewpChoice').style.display='none';
    $('rewpFeedback').textContent='';
    $('rewpFeedbackText').textContent='';
    $('rewpFixation').style.display='block';
    $('rewp-phase').textContent=tr('FIXATION');
    triggerFlash();
    T(function(){
      $('rewpFixation').style.display='none';
      $('rewpChoice').style.display='flex';
      $('rewp-phase').textContent=tr('CHOOSE');
      _REWP.stimOn = performance.now();
      _REWP.waiting = true;
      // Auto-respond after 2s if no response
      _REWP._autoTimer = T(function(){
        if(_REWP.waiting) rewpChoose(Math.random()<0.5?0:1);
      }, 2000);
    }, 600+Math.random()*400);
  }

  _REWP._next = rewpNext;
  rewpNext();
}

function rewpChoose(cardIdx){
  if(!_REWP || !_REWP.waiting) return;
  _REWP.waiting = false;
  clearTimeout(_REWP._autoTimer);
  var rt = +(performance.now()-_REWP.stimOn).toFixed(1);
  $('rewpChoice').style.display='none';
  // Outcome: probabilistic win/loss
  var isWin = Math.random() < 0.5;
  var outcome = isWin ? 'win' : 'loss';
  if(isWin) _REWP.wins++; else _REWP.losses++;
  _REWP.push({trial:_REWP.trial, card:cardIdx, outcome:outcome, rt:rt, t:performance.now()});
  // Show feedback
  $('rewpFeedback').textContent = isWin ? '↑ WIN' : '↓ LOSS';
  $('rewpFeedback').style.color = isWin ? '#81c784' : '#e05c5c';
  $('rewpFeedback').style.fontSize = '2.8rem';
  var fb=$('rewpFeedbackText');
  fb.textContent = isWin ? '+10 pts' : '−10 pts';
  fb.className = 'feedback '+(isWin?'ok':'err');
  triggerFlash();
  _REWP.T(function(){
    $('rewpFeedback').textContent='';
    $('rewpFeedbackText').textContent='';
    _REWP.T(_REWP._next, 400);
  }, 700);
}

function rewpExportCSV(){
  var log=window._rewp_log; if(!log) return;
  var blob=new Blob(['trial,card,outcome,rt_ms,t_ms\n'+log.map(function(r){
    return [r.trial,r.card,r.outcome,r.rt!=null?r.rt:'',r.t.toFixed(0)].join(',');
  }).join('\n')],{type:'text/csv'});
  var a=document.createElement('a'); a.href=URL.createObjectURL(blob);
  a.download='rewp_'+Date.now()+'.csv'; a.click();
}

// ══════════════════════════════════════════════════════════
// DIGIT CANCELLATION
// ══════════════════════════════════════════════════════════

var _DIGCAN = null;

function startDigCan(isPractice){
  var TARGETS = [3, 7];
  var ROWS = 10, COLS = 20, TIME_LIMIT = isPractice ? 20000 : 60000;
  // Build grid
  var cells = [];
  for(var i=0; i<ROWS*COLS; i++) cells.push(Math.floor(Math.random()*10));

  _DIGCAN = {
    active:true, isPractice:isPractice, cells:cells, targets:TARGETS,
    hits:0, omissions:0, falsAlarms:0, log:[], startTime:0,
    _timer:null, _rafTimer:null
  };

  hideAll();
  $('digcanScreen','abrScreen','p1n1Screen','cnvwScreen','thalphaScreen','symsearchScreen','phonflueScreen','jloScreen','pasatScreen','ravltScreen','cvltScreen','igtScreen','tolScreen','rmetScreen').style.display='flex';
  $('digcanPracticeBanner').style.display=isPractice?'block':'none';
  $('digcanProgressBar').style.width='0%';
  $('digcanStimPhase').style.display='flex';
  $('digcanResultsPhase').style.display='none';
  $('digcan-target').textContent=tr('CLICK every ')+TARGETS.join(' and ')+tr(' — ignore all other digits');
  $('digcan-trial').textContent='';
  $('si-task').textContent='DIGCAN'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;

  // Build grid HTML
  var grid = $('digcanGrid');
  grid.innerHTML='';
  cells.forEach(function(d,i){
    var cell = document.createElement('div');
    cell.textContent = d;
    cell.style.cssText='width:28px;height:28px;display:flex;align-items:center;justify-content:center;'+
      'font-family:"Source Code Pro",monospace;font-size:0.95rem;border:1px solid #1a2f44;'+
      'background:#0a1620;color:var(--mid);cursor:pointer;border-radius:2px;transition:all 0.1s;';
    cell.dataset.idx = i;
    cell.dataset.val = d;
    cell.dataset.hit = '0';
    cell.addEventListener('click', function(){
      if(!_DIGCAN||!_DIGCAN.active) return;
      if(cell.dataset.hit==='1') return; // already clicked
      cell.dataset.hit='1';
      var val=parseInt(cell.dataset.val);
      var isTarget=TARGETS.indexOf(val)>=0;
      var rt=+(performance.now()-_DIGCAN.startTime).toFixed(1);
      if(isTarget){
        _DIGCAN.hits++;
        cell.style.background='rgba(212,180,86,0.25)';
        cell.style.color='var(--gold)';
        cell.style.borderColor='var(--gold)';
      } else {
        _DIGCAN.falsAlarms++;
        cell.style.background='rgba(224,92,92,0.2)';
        cell.style.color='#e05c5c';
        cell.style.borderColor='#e05c5c';
      }
      _DIGCAN.log.push({idx:parseInt(cell.dataset.idx),val:val,isTarget:isTarget,rt:rt,t:performance.now()});
    });
    grid.appendChild(cell);
  });

  _DIGCAN.startTime = performance.now();

  // Countdown timer
  function updateTimer(){
    if(!_DIGCAN||!_DIGCAN.active) return;
    var elapsed=performance.now()-_DIGCAN.startTime;
    var remaining=Math.max(0,(TIME_LIMIT-elapsed)/1000);
    $('digcan-time').textContent=remaining.toFixed(0)+'s';
    $('digcanProgressBar').style.width=(elapsed/TIME_LIMIT*100).toFixed(1)+'%';
    if(elapsed>=TIME_LIMIT){ digcanEnd(); return; }
    _DIGCAN._rafTimer=requestAnimationFrame(updateTimer);
  }
  _DIGCAN._rafTimer=requestAnimationFrame(updateTimer);
}

function digcanEnd(){
  if(!_DIGCAN||!_DIGCAN.active) return;
  _DIGCAN.active=false;
  if(_DIGCAN._rafTimer) cancelAnimationFrame(_DIGCAN._rafTimer);
  $('digcanStimPhase').style.display='none';
  $('digcanProgressBar').style.width='100%';

  // Count omissions
  var totalTargets=_DIGCAN.cells.filter(function(d){return _DIGCAN.targets.indexOf(d)>=0;}).length;
  _DIGCAN.omissions=totalTargets-_DIGCAN.hits;

  if(_DIGCAN.isPractice){
    $('pcStats').innerHTML='HITS <span>'+_DIGCAN.hits+'</span> / FA <span>'+_DIGCAN.falsAlarms+'</span>';
    hideAll(); $('practiceComplete').style.display='flex'; return;
  }

  window._digcan_log=_DIGCAN.log;
  $('exportBtn').disabled=false;
  var duration=((performance.now()-_DIGCAN.startTime)/1000).toFixed(1);
  var dp=_DIGCAN.hits+_DIGCAN.omissions>0?((_DIGCAN.hits/(_DIGCAN.hits+_DIGCAN.omissions))*100).toFixed(0):'—';
  $('digcanMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+_DIGCAN.hits+'</div><div class="vm-lbl">Hits</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+_DIGCAN.omissions+'</div><div class="vm-lbl">Omissions</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+_DIGCAN.falsAlarms+'</div><div class="vm-lbl">False Alarms</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+dp+'%</div><div class="vm-lbl">Hit Rate</div></div>';
  $('digcanResultsPhase').style.display='block';
  cognosRecordResult('DIGCAN','DIGCAN',{score:($('digcanMetrics')||{textContent:''}).textContent.trim().replace(/\s+/g,' ').substring(0,120)},[]); updateSidebar();
}

function digcanExportCSV(){
  var log=window._digcan_log; if(!log) return;
  var blob=new Blob(['idx,val,is_target,rt_ms,t_ms\n'+log.map(function(r){
    return[r.idx,r.val,r.isTarget?1:0,r.rt,r.t.toFixed(0)].join(',');
  }).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='digcan_'+Date.now()+'.csv';a.click();
}

// ══════════════════════════════════════════════════════════
// ABR — Auditory Brainstem Response (continuous click burst)
// ══════════════════════════════════════════════════════════

var _ABR = null;

function startABR(isPractice){
  var CLICK_RATE   = 11.1;          // clicks/sec (standard ABR rate)
  var CLICK_INTERVAL_MS = 1000/CLICK_RATE;
  var DURATION_MS  = isPractice ? 20000 : 60000;
  var WAVE_LATS    = {I:1.7, III:3.9, V:5.7};  // normative ms at 70 dB nHL

  _ABR = {
    active:true, isPractice:isPractice,
    clickCount:0, startTime:0,
    waveV_lats:[], _audioCtx:null,
    _clickTimer:null, _rafTimer:null
  };

  hideAll();
  $('abrScreen','p1n1Screen','cnvwScreen','thalphaScreen').style.display='flex';
  $('abrPracticeBanner').style.display=isPractice?'block':'none';
  $('abrProgressBar').style.width='0%';
  $('abrStimPhase').style.display='flex';
  $('abrResultsPhase').style.display='none';
  $('abr-phase').textContent=tr('RECORDING');
  $('abrWaveInfo').textContent='Delivering '+CLICK_RATE.toFixed(1)+' clicks/sec…';
  $('si-task').textContent='ABR'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;

  // Open single AudioContext for entire burst
  try {
    _ABR._audioCtx = new(window.AudioContext||window.webkitAudioContext)();
  } catch(e){}

  function playClick(){
    // R12: custom audio override — use loaded click WAV if present.
    // ABR fires ~11 clicks/sec so the loaded file should be very short
    // (a real click is < 1ms); we don't gate on duration.
    if (typeof CustomAudio !== 'undefined' && CustomAudio.tryPlay('abr-click', 0.4)) {
      _ABR.waveV_lats.push(+(5.7 + (Math.random()-0.5)*0.4).toFixed(3));
      _ABR.clickCount++;
      return;
    }
    if(!_ABR._audioCtx) return;
    try {
      var ctx2 = _ABR._audioCtx;
      var bufLen = Math.max(1, Math.round(ctx2.sampleRate * 0.0001));
      var buf = ctx2.createBuffer(1, bufLen, ctx2.sampleRate);
      var d = buf.getChannelData(0);
      for(var i=0;i<d.length;i++) d[i]=(Math.random()*2-1)*0.5;
      var src = ctx2.createBufferSource();
      src.buffer = buf;
      var g = ctx2.createGain();
      g.gain.setValueAtTime(0.4, ctx2.currentTime);
      g.gain.linearRampToValueAtTime(0, ctx2.currentTime+0.001);
      src.connect(g); g.connect(ctx2.destination); src.start();
    } catch(e){}
    // Record simulated wave V latency with jitter
    _ABR.waveV_lats.push(+(5.7 + (Math.random()-0.5)*0.4).toFixed(3));
    _ABR.clickCount++;
  }

  _ABR.startTime = performance.now();

  // Continuous click delivery via setInterval
  playClick(); // first click immediately
  _ABR._clickTimer = setInterval(function(){
    if(!_ABR.active) return;
    playClick();
  }, CLICK_INTERVAL_MS);

  // Progress + countdown via RAF
  function updateDisplay(){
    if(!_ABR.active) return;
    var elapsed = performance.now() - _ABR.startTime;
    var remaining = Math.max(0, (DURATION_MS-elapsed)/1000);
    $('digcan-time') && ($('digcan-time').textContent=remaining.toFixed(0)+'s'); // ignore if wrong id
    $('abrProgressBar').style.width = (elapsed/DURATION_MS*100).toFixed(1)+'%';
    $('abr-trial').textContent = _ABR.clickCount + ' clicks · ' + remaining.toFixed(0) + 's';
    if(elapsed >= DURATION_MS){ abrEnd(); return; }
    _ABR._rafTimer = requestAnimationFrame(updateDisplay);
  }
  _ABR._rafTimer = requestAnimationFrame(updateDisplay);
}

function abrEnd(){
  if(!_ABR||!_ABR.active) return;
  _ABR.active = false;
  clearInterval(_ABR._clickTimer);
  if(_ABR._rafTimer) cancelAnimationFrame(_ABR._rafTimer);
  if(_ABR._audioCtx) try{_ABR._audioCtx.close();}catch(e){}

  $('abrStimPhase').style.display='none';
  $('abrProgressBar').style.width='100%';

  var lats = _ABR.waveV_lats;
  var avgV = lats.length ? (lats.reduce(function(a,b){return a+b;},0)/lats.length).toFixed(2) : '—';

  if(_ABR.isPractice){
    $('pcStats').innerHTML='CLICKS <span>'+_ABR.clickCount+'</span> · Wave V <span>'+avgV+'ms</span>';
    hideAll(); $('practiceComplete').style.display='flex'; return;
  }

  window._abr_log = _ABR.waveV_lats;
  $('exportBtn').disabled=false;

  $('abrMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+_ABR.clickCount+'</div><div class="vm-lbl">Total clicks</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+avgV+'ms</div><div class="vm-lbl">Mean Wave V</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+((+avgV-1.7).toFixed(2))+'ms</div><div class="vm-lbl">I–V IPL</div></div>';
  $('abrResultsPhase').style.display='block';
  cognosRecordResult('ABR','ABR',{score:($('abrMetrics')||{textContent:''}).textContent.trim().replace(/\s+/g,' ').substring(0,120)},[]); updateSidebar();
}

function abrExportCSV(){
  var log=window._abr_log; if(!log) return;
  var rows=['click,waveV_lat_ms'];
  log.forEach(function(v,i){ rows.push((i+1)+','+v); });
  var blob=new Blob([rows.join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='abr_'+Date.now()+'.csv';a.click();
}

// ══════════════════════════════════════════════════════════
// SYMBOL SEARCH (WAIS-IV PSI)
// ══════════════════════════════════════════════════════════
var _SYMSEARCH = null;
var SYMSEARCH_SYMBOLS = ['▲','●','■','◆','★','✦','⬟','⊕','⊗','⊘','⊙','⊞','⊟','Ψ','Φ','Ω','Σ','Δ','Λ','Π'];

function startSymSearch(isPractice){
  var TIME_LIMIT = isPractice ? 30000 : 120000;
  _SYMSEARCH = {
    active:true, isPractice:isPractice, trial:0, correct:0, errors:0,
    log:[], startTime:0, _rafTimer:null, waiting:false, stimOn:0,
    currentItem:null
  };

  hideAll();
  $('symsearchScreen','phonflueScreen','jloScreen','pasatScreen','ravltScreen','cvltScreen','igtScreen','tolScreen','rmetScreen').style.display='flex';
  $('symsearchPracticeBanner').style.display=isPractice?'block':'none';
  $('symsearchProgressBar').style.width='0%';
  $('symsearchStimPhase').style.display='flex';
  $('symsearchResultsPhase').style.display='none';
  $('symsearch-time').textContent=(TIME_LIMIT/1000).toFixed(0)+'s';
  $('si-task').textContent='SYMSEARCH'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;
  _SYMSEARCH.startTime=performance.now();

  function updateTimer(){
    if(!_SYMSEARCH||!_SYMSEARCH.active) return;
    var elapsed=performance.now()-_SYMSEARCH.startTime;
    var rem=Math.max(0,(TIME_LIMIT-elapsed)/1000);
    $('symsearch-time').textContent=rem.toFixed(0)+'s';
    $('symsearchProgressBar').style.width=(elapsed/TIME_LIMIT*100).toFixed(1)+'%';
    if(elapsed>=TIME_LIMIT){ symsearchEnd(); return; }
    _SYMSEARCH._rafTimer=requestAnimationFrame(updateTimer);
  }
  _SYMSEARCH._rafTimer=requestAnimationFrame(updateTimer);

  symsearchNext();
}

function symsearchMakeItem(){
  var syms=SYMSEARCH_SYMBOLS.slice();
  // Pick 2 targets
  var t1=syms.splice(Math.floor(Math.random()*syms.length),1)[0];
  var t2=syms.splice(Math.floor(Math.random()*syms.length),1)[0];
  // 50% chance target is present in search array
  var present=Math.random()<0.5;
  var arr=[];
  if(present){
    arr.push(Math.random()<0.5?t1:t2);
    var pool=syms.filter(function(s){return s!==t1&&s!==t2;});
    while(arr.length<5) arr.push(pool.splice(Math.floor(Math.random()*pool.length),1)[0]);
  } else {
    var pool=syms.filter(function(s){return s!==t1&&s!==t2;});
    while(arr.length<5) arr.push(pool.splice(Math.floor(Math.random()*pool.length),1)[0]);
  }
  // Shuffle array
  arr.sort(function(){return Math.random()-0.5;});
  return {t1:t1,t2:t2,arr:arr,present:present};
}

function symsearchNext(){
  if(!_SYMSEARCH||!_SYMSEARCH.active) return;
  _SYMSEARCH.trial++;
  $('symsearchFeedback').textContent='';$('symsearchFeedback').className='feedback';
  var item=symsearchMakeItem();
  _SYMSEARCH.currentItem=item;

  // Render targets
  var tDiv=$('symsearchTargets'); tDiv.innerHTML='';
  [item.t1,item.t2].forEach(function(s){
    var el=document.createElement('div');
    el.textContent=s;
    el.style.cssText='font-size:1.8rem;width:48px;height:48px;display:flex;align-items:center;justify-content:center;border:2px solid rgba(212,180,86,0.5);border-radius:4px;background:#0a1620;color:var(--gold);';
    tDiv.appendChild(el);
  });
  // Render search array
  var aDiv=$('symsearchArray'); aDiv.innerHTML='';
  item.arr.forEach(function(s){
    var el=document.createElement('div');
    el.textContent=s;
    el.style.cssText='font-size:1.8rem;width:48px;height:48px;display:flex;align-items:center;justify-content:center;border:2px solid #1a2f44;border-radius:4px;background:#0a1620;color:var(--mid);';
    aDiv.appendChild(el);
  });
  $('symsearch-trial').textContent='Item '+_SYMSEARCH.trial+' · '+_SYMSEARCH.correct+' correct';
  _SYMSEARCH.waiting=true;
  _SYMSEARCH.stimOn=performance.now();
  triggerFlash();
}

function symsearchExportCSV(){
  var log=window._symsearch_log; if(!log) return;
  var blob=new Blob(['trial,present,correct,rt_ms\n'+log.map(function(r){
    return[r.trial,r.present?1:0,r.correct?1:0,r.rt].join(',');
  }).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='symsearch_'+Date.now()+'.csv';a.click();
}

function symsearchEnd(){
  if(!_SYMSEARCH||!_SYMSEARCH.active) return;
  _SYMSEARCH.active=false;
  if(_SYMSEARCH._rafTimer) cancelAnimationFrame(_SYMSEARCH._rafTimer);
  $('symsearchStimPhase').style.display='none';$('symsearchProgressBar').style.width='100%';
  var log=_SYMSEARCH.log;
  if(_SYMSEARCH.isPractice){
    $('pcStats').innerHTML='CORRECT <span>'+_SYMSEARCH.correct+'</span>';
    hideAll();$('practiceComplete').style.display='flex';return;
  }
  window._symsearch_log=log;$('exportBtn').disabled=false;
  var acc=log.length?(_SYMSEARCH.correct/log.length*100).toFixed(0):'—';
  var rtValid=log.filter(function(r){return r.rt;});
  var avgRT=rtValid.length?(rtValid.reduce(function(a,b){return a+b.rt;},0)/rtValid.length).toFixed(0):'—';
  $('symsearchMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+_SYMSEARCH.correct+'</div><div class="vm-lbl">Correct</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+_SYMSEARCH.errors+'</div><div class="vm-lbl">Errors</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+acc+'%</div><div class="vm-lbl">Accuracy</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+avgRT+'ms</div><div class="vm-lbl">Avg RT</div></div>';
  $('symsearchResultsPhase').style.display='block';
  cognosRecordResult('SYMSEARCH','SYMSEARCH',{score:($('symsearchMetrics')||{textContent:''}).textContent.trim().replace(/\s+/g,' ').substring(0,120)},[]); updateSidebar();
}

// ══════════════════════════════════════════════════════════
// DIGIT SYMBOL CODING (DSC) — WAIS-IV processing-speed subtest
// A key pairs digits 1–9 with symbols. A stream of digits appears; for each,
// enter the matching symbol (click it, or press its digit key). Score = number
// correct within the time limit.
// ══════════════════════════════════════════════════════════
var _DSC=null;
var DSC_SYMBOLS=['§','∆','⊥','◇','¬','⊃','∩','≈','⌐'];  // 9 distinct glyphs
function startDSC(isPractice){
  var TIME_LIMIT = isPractice ? 30000 : 90000;
  // Clear any leftover timer from a prior block (e.g. practice) so a stale
  // loop can't fire dscEnd() into the new run.
  if(_DSC && _DSC._rafTimer){ cancelAnimationFrame(_DSC._rafTimer); _DSC._rafTimer=null; }
  if(_DSC){ _DSC.active=false; }
  // Build the digit→symbol key (fixed mapping 1..9 → symbols)
  var mapping = DSC_SYMBOLS.slice();   // index 0 = digit 1, etc.
  _DSC = { active:true, isPractice:isPractice, mapping:mapping, correct:0, errors:0,
           log:[], cur:null, startTime:0, _rafTimer:null };
  hideAll();
  $('dscScreen').style.display='flex';
  $('dscPracticeBanner').style.display=isPractice?'block':'none';
  $('dscStimPhase').style.display='flex';
  $('dscResultsPhase').style.display='none';
  $('dscProgressBar').style.width='0%';
  $('si-task').textContent='DSC'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;

  // Render the KEY (digit над symbol)
  var keyEl=$('dscKey'); keyEl.innerHTML='';
  for(var d=1; d<=9; d++){
    var cell=document.createElement('div');
    cell.style.cssText='display:flex;flex-direction:column;align-items:center;border:1px solid #2a4060;border-radius:4px;padding:4px 8px;min-width:30px;';
    cell.innerHTML='<div style="font-family:\'Source Code Pro\',monospace;font-size:0.95rem;color:var(--gold);">'+d+'</div>'+
                   '<div style="height:1px;background:#2a4060;width:100%;margin:2px 0;"></div>'+
                   '<div style="font-size:1.2rem;color:#f5f0e8;">'+mapping[d-1]+'</div>';
    keyEl.appendChild(cell);
  }
  // Render the symbol palette (clickable)
  var pal=$('dscPalette'); pal.innerHTML='';
  for(var i=0;i<9;i++){
    (function(idx){
      var b=document.createElement('div');
      b.className='dsc-pal-btn';
      b.style.cssText='border:1px solid #3a5070;border-radius:6px;width:48px;height:48px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:#f5f0e8;cursor:pointer;user-select:none;background:#0a1620;';
      b.textContent=mapping[idx];
      b.onmouseenter=function(){ b.style.borderColor='var(--gold)'; };
      b.onmouseleave=function(){ b.style.borderColor='#3a5070'; };
      b.onclick=function(){ dscAnswer(idx+1); };  // palette slot idx → digit idx+1
      pal.appendChild(b);
    })(i);
  }
  $('dscFeedback').textContent='';
  _DSC.startTime=performance.now();
  // Countdown via self-scheduling rAF loop (same pattern as Symbol Search /
  // Digit Cancellation — robust against the pause wrapper).
  function dscTick(){
    if(!_DSC||!_DSC.active) return;
    var elapsed=performance.now()-_DSC.startTime;
    var remain=Math.max(0,(TIME_LIMIT-elapsed)/1000);
    $('dsc-time').textContent=remain.toFixed(0)+'s';
    $('dscProgressBar').style.width=Math.min(100,(elapsed/TIME_LIMIT*100)).toFixed(1)+'%';
    if(elapsed>=TIME_LIMIT){ dscEnd(); return; }
    _DSC._rafTimer=requestAnimationFrame(dscTick);
  }
  _DSC._rafTimer=requestAnimationFrame(dscTick);
  dscNextDigit();
  try{Trigger.send(10,'DSC_block_start',{task:'DSC',practice:isPractice});}catch(_){}
}
function dscNextDigit(){
  if(!_DSC||!_DSC.active) return;
  var d=Math.floor(Math.random()*9)+1;      // random digit 1..9
  _DSC.cur={digit:d, onset:performance.now()};
  $('dscCurrentDigit').textContent=d;
  $('dsc-trial').textContent='Item '+(_DSC.log.length+1);
}
function dscAnswer(digitChosen){
  if(!_DSC||!_DSC.active||!_DSC.cur) return;
  var correct=(digitChosen===_DSC.cur.digit);   // key maps digit→symbol; correct symbol = same digit slot
  var rt=+(performance.now()-_DSC.cur.onset).toFixed(1);
  if(correct){ _DSC.correct++; } else { _DSC.errors++; }
  _DSC.log.push({item:_DSC.log.length+1, digit:_DSC.cur.digit, chosen:digitChosen, correct:correct, rt:rt});
  var fb=$('dscFeedback');
  fb.textContent=correct?'✓':'✗';
  fb.className='feedback '+(correct?'ok':'err');
  try{Trigger.send(correct?1:2,'DSC_resp',{correct:correct});}catch(_){}
  dscNextDigit();
}
document.addEventListener('keydown',function dscKey(e){
  if(!_DSC||!_DSC.active) return;
  if(e.target&&(e.target.tagName==='INPUT'||e.target.tagName==='TEXTAREA')) return;
  if(e.key>='1'&&e.key<='9'){ e.preventDefault(); dscAnswer(parseInt(e.key,10)); }
});
function dscEnd(){
  if(!_DSC||!_DSC.active) return;
  _DSC.active=false;
  if(_DSC._rafTimer){ cancelAnimationFrame(_DSC._rafTimer); _DSC._rafTimer=null; }
  $('dscStimPhase').style.display='none'; $('dscProgressBar').style.width='100%';
  var log=_DSC.log;
  if(_DSC.isPractice){
    $('pcStats').innerHTML='CORRECT <span>'+_DSC.correct+'</span>';
    hideAll();$('practiceComplete').style.display='flex'; return;
  }
  window._dsc_log=log; $('exportBtn').disabled=false;
  var acc=log.length?(_DSC.correct/log.length*100).toFixed(0):'—';
  var rtValid=log.filter(function(r){return r.correct;});
  var avgRT=rtValid.length?(rtValid.reduce(function(a,b){return a+b.rt;},0)/rtValid.length).toFixed(0):'—';
  $('dscMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+_DSC.correct+'</div><div class="vm-lbl">Correct</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+_DSC.errors+'</div><div class="vm-lbl">Errors</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+acc+'%</div><div class="vm-lbl">Accuracy</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+avgRT+'ms</div><div class="vm-lbl">Avg RT</div></div>';
  $('dscResultsPhase').style.display='block';
  try{Trigger.send(11,'DSC_block_end',{task:'DSC'});}catch(_){}
  cognosRecordResult('DSC','DSC',{score:_DSC.correct+' correct'},[]); updateSidebar();
}
function dscExportCSV(){
  var log=window._dsc_log; if(!log) return;
  var blob=new Blob(['item,digit,chosen,correct,rt_ms\n'+log.map(function(r){
    return[r.item,r.digit,r.chosen,r.correct?1:0,r.rt].join(',');
  }).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='dsc_'+Date.now()+'.csv';a.click();
}

document.addEventListener('keydown',function symsKey(e){
  if(!_SYMSEARCH||!_SYMSEARCH.active||!_SYMSEARCH.waiting)return;
  var resp=e.key==='f'||e.key==='F'?true:e.key==='j'||e.key==='J'?false:null;
  if(resp===null)return;
  e.preventDefault();_SYMSEARCH.waiting=false;
  var rt=+(performance.now()-_SYMSEARCH.stimOn).toFixed(1);
  var item=_SYMSEARCH.currentItem;
  var correct=resp===item.present;
  if(correct)_SYMSEARCH.correct++;else _SYMSEARCH.errors++;
  _SYMSEARCH.log.push({trial:_SYMSEARCH.trial,present:item.present,correct:correct,rt:rt});
  var fb=$('symsearchFeedback');
  fb.textContent=correct?rt+'ms ✓':rt+'ms ✗';
  fb.className='feedback '+(correct?'ok':'err');
  setTimeout(function(){if(_SYMSEARCH&&_SYMSEARCH.active)symsearchNext();},180);
});

// ══════════════════════════════════════════════════════════
// PHONEMIC FLUENCY (FAS)
// ══════════════════════════════════════════════════════════
var _PHONFLUE = null;

function startPhonFlue(isPractice){
  var LETTERS = isPractice ? ['F'] : ['F','A','S'];
  var TIME_LIMIT = 60000;

  _PHONFLUE = {
    active:true, isPractice:isPractice,
    letterIdx:0, letters:LETTERS,
    currentWords:[], allResults:[],
    startTime:0, _rafTimer:null
  };

  hideAll();
  $('phonflueScreen','jloScreen','pasatScreen','ravltScreen','cvltScreen','igtScreen','tolScreen','rmetScreen').style.display='flex';
  $('phonflueanceBanner').style.display=isPractice?'block':'none';
  $('phonflueProgressBar').style.width='0%';
  $('phonflueStimPhase').style.display='flex';
  $('phonflueResultsPhase').style.display='none';
  $('si-task').textContent='PHONFLUE'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;

  phonflueStartLetter();
}

function phonflueStartLetter(){
  if(!_PHONFLUE.active) return;
  var letter = _PHONFLUE.letters[_PHONFLUE.letterIdx];
  _PHONFLUE.currentWords = [];
  _PHONFLUE.startTime = performance.now();

  $('phonflue-letter').textContent = letter;
  $('phonflue-count').textContent = '0 words';
  $('phonflueWordList').innerHTML = '';
  $('phonflueInvalid').textContent = '';
  $('phonflueInstruct').textContent =
    'Name words starting with "'+letter+'" — no proper nouns, no repeats, no same root';
  var inp = $('phonflueInput');
  inp.value=''; inp.disabled=false; inp.focus();

  // Timer RAF
  if(_PHONFLUE._rafTimer) cancelAnimationFrame(_PHONFLUE._rafTimer);
  function tick(){
    if(!_PHONFLUE.active) return;
    var elapsed = performance.now()-_PHONFLUE.startTime;
    var rem = Math.max(0,(60000-elapsed)/1000);
    $('phonflue-time').textContent = rem.toFixed(0)+'s';
    $('phonflueProgressBar').style.width = (elapsed/60000*100).toFixed(1)+'%';
    if(elapsed>=60000){ phonflueNextLetter(); return; }
    _PHONFLUE._rafTimer = requestAnimationFrame(tick);
  }
  _PHONFLUE._rafTimer = requestAnimationFrame(tick);

  // Input handler
  inp.onkeydown = function(e){
    if(e.key!=='Enter') return;
    e.preventDefault();
    var w = inp.value.trim().toLowerCase().replace(/[^a-z]/g,'');
    inp.value='';
    if(!w){ return; }
    var letter = _PHONFLUE.letters[_PHONFLUE.letterIdx];
    // Validate
    if(w[0]!==letter.toLowerCase()){
      $('phonflueInvalid').textContent='✗ Must start with "'+letter+'"';
      setTimeout(function(){$('phonflueInvalid').textContent='';},1200); return;
    }
    if(_PHONFLUE.currentWords.indexOf(w)>=0){
      $('phonflueInvalid').textContent='✗ Already said: '+w;
      setTimeout(function(){$('phonflueInvalid').textContent='';},1200); return;
    }
    $('phonflueInvalid').textContent='';
    var t = +(performance.now()-_PHONFLUE.startTime).toFixed(0);
    _PHONFLUE.currentWords.push(w);
    $('phonflue-count').textContent=_PHONFLUE.currentWords.length+' word'+(
      _PHONFLUE.currentWords.length!==1?'s':'');
    // Add word chip
    var chip=document.createElement('span');
    chip.textContent=w;
    chip.style.cssText='font-size:0.82rem;font-family:"Source Code Pro",monospace;'+
      'color:var(--gold);background:rgba(212,180,86,0.1);border:1px solid rgba(212,180,86,0.3);'+
      'padding:2px 8px;border-radius:2px;';
    $('phonflueWordList').appendChild(chip);
  };
}

function phonflueNextLetter(){
  if(!_PHONFLUE.active) return;
  if(_PHONFLUE._rafTimer){ cancelAnimationFrame(_PHONFLUE._rafTimer); _PHONFLUE._rafTimer=null; }
  var inp=$('phonflueInput'); inp.disabled=true; inp.onkeydown=null;

  // Save results for this letter
  _PHONFLUE.allResults.push({
    letter:_PHONFLUE.letters[_PHONFLUE.letterIdx],
    words:_PHONFLUE.currentWords.slice(),
    count:_PHONFLUE.currentWords.length
  });
  _PHONFLUE.letterIdx++;

  if(_PHONFLUE.letterIdx < _PHONFLUE.letters.length){
    // Brief pause between letters
    $('phonflue-time').textContent='—';
    $('phonflueInstruct').textContent='Next letter in 3 seconds…';
    $('phonflueWordList').innerHTML='';
    setTimeout(function(){ if(_PHONFLUE.active) phonflueStartLetter(); }, 3000);
  } else {
    phonflueEnd();
  }
}

function phonflueEnd(){
  _PHONFLUE.active=false;
  $('phonflueStimPhase').style.display='none';
  $('phonflueProgressBar').style.width='100%';
  var results=_PHONFLUE.allResults;
  var total=results.reduce(function(a,r){return a+r.count;},0);

  if(_PHONFLUE.isPractice){
    $('pcStats').innerHTML='F words <span>'+results[0].count+'</span>';
    hideAll();$('practiceComplete').style.display='flex';return;
  }
  window._phonflue_log=results;$('exportBtn').disabled=false;

  var metricsHTML='<div class="vrt-metric"><div class="vm-val">'+total+'</div><div class="vm-lbl">Total (FAS)</div></div>';
  results.forEach(function(r){
    metricsHTML+='<div class="vrt-metric"><div class="vm-val">'+r.count+'</div><div class="vm-lbl">Letter '+r.letter+'</div></div>';
  });
  $('phonflueMetrics').innerHTML=metricsHTML;

  var summaryHTML='';
  results.forEach(function(r){
    summaryHTML+='<strong style="color:var(--gold)">'+r.letter+':</strong> '+
      r.words.join(', ')+'<br>';
  });
  $('phonflueWordSummary').innerHTML=summaryHTML;
  $('phonflueResultsPhase').style.display='block';
  cognosRecordResult('PHONFLUE','PHONFLUE',{score:($('phonflueMetrics')||{textContent:''}).textContent.trim().replace(/\s+/g,' ').substring(0,120)},[]); updateSidebar();
}

function phonflueExportCSV(){
  var log=window._phonflue_log; if(!log) return;
  var rows=['letter,rank,word'];
  log.forEach(function(r){
    r.words.forEach(function(w,i){rows.push(r.letter+','+(i+1)+','+w);});
  });
  var blob=new Blob([rows.join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='phonflue_'+Date.now()+'.csv';a.click();
}

// ══════════════════════════════════════════════════════════
// JLO — Judgment of Line Orientation (Benton)
// ══════════════════════════════════════════════════════════
var _JLO = null;

// 11 reference lines: 0°=horizontal through 180°, step 18°
// Numbered 1–11 from right-most (0°) counterclockwise
function jloAngle(n){ return (n-1)*18; } // degrees, 0=right horizontal

function startJLO(isPractice){
  _JLO = {
    active:true, isPractice:isPractice, trial:0,
    maxTrials: isPractice ? 10 : 30,
    correct:0, log:[], selected:[], stimAngles:[],
    stimOn:0
  };
  hideAll();
  $('jloScreen','pasatScreen','ravltScreen','cvltScreen','igtScreen','tolScreen','rmetScreen').style.display='flex';
  $('jloPracticeBanner').style.display=isPractice?'block':'none';
  $('jloProgressBar').style.width='0%';
  $('jloStimPhase').style.display='flex';
  $('jloResultsPhase').style.display='none';
  $('si-task').textContent='JLO'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;

  // Fan canvas click handler
  $('jloFanCanvas').onclick = jloFanClick;
  jloNext();
}

function jloNext(){
  if(!_JLO.active) return;
  if(_JLO.trial >= _JLO.maxTrials){ jloEnd(); return; }
  _JLO.trial++;
  _JLO.selected=[];
  $('jloProgressBar').style.width=((_JLO.trial-1)/_JLO.maxTrials*100).toFixed(1)+'%';
  $('jlo-trial').textContent='Item '+_JLO.trial+'/'+_JLO.maxTrials;
  $('jloFeedback').textContent='';$('jloFeedback').className='feedback';
  $('jloSelected').textContent='Selected: —';
  $('jloConfirmBtn').style.display='none';

  // Pick two distinct random lines from the 11 (numbered 1–11)
  var a=1+Math.floor(Math.random()*11);
  var b;do{b=1+Math.floor(Math.random()*11);}while(b===a);
  _JLO.stimAngles=[a,b];
  _JLO.stimOn=performance.now();

  jloDrawStim();
  jloDrawFan();
  triggerFlash();
}

function jloDrawStim(){
  var cvs=$('jloStimCanvas'); if(!cvs)return;
  var ctx=cvs.getContext('2d');
  var W=200,H=120,cx=W/2,cy=H/2,len=42;
  ctx.clearRect(0,0,W,H);ctx.fillStyle='#060d14';ctx.fillRect(0,0,W,H);
  var cols=['#d4b456','#5b9fda'];
  _JLO.stimAngles.forEach(function(n,i){
    var deg=jloAngle(n);
    var rad=deg*Math.PI/180;
    var ox=(i===0)?-30:30;
    ctx.strokeStyle=cols[i];ctx.lineWidth=2.5;ctx.lineCap='round';
    ctx.beginPath();
    ctx.moveTo(cx+ox-Math.cos(rad)*len,cy+Math.sin(rad)*len);
    ctx.lineTo(cx+ox+Math.cos(rad)*len,cy-Math.sin(rad)*len);
    ctx.stroke();
  });
}

function jloDrawFan(){
  var cvs=$('jloFanCanvas'); if(!cvs)return;
  var ctx=cvs.getContext('2d');
  var W=320,H=200,cx=W/2,cy=H-20,len=78;
  ctx.clearRect(0,0,W,H);ctx.fillStyle='#060d14';ctx.fillRect(0,0,W,H);
  for(var n=1;n<=11;n++){
    var deg=jloAngle(n);var rad=deg*Math.PI/180;
    var sel=_JLO.selected.indexOf(n)>=0;
    ctx.strokeStyle=sel?'#d4b456':'rgba(138,180,208,0.4)';
    ctx.lineWidth=sel?2.5:1.5;ctx.lineCap='round';
    ctx.beginPath();
    ctx.moveTo(cx,cy);
    ctx.lineTo(cx+Math.cos(rad)*len,cy-Math.sin(rad)*len);
    ctx.stroke();
    // Label
    var lx=cx+Math.cos(rad)*(len+14);
    var ly=cy-Math.sin(rad)*(len+14);
    ctx.font=(sel?'bold ':'')+'11px "Source Code Pro",monospace';
    ctx.fillStyle=sel?'#d4b456':'rgba(138,180,208,0.6)';
    ctx.textAlign='center';ctx.textBaseline='middle';
    ctx.fillText(n,lx,ly);
  }
}

function jloFanClick(e){
  if(!_JLO||!_JLO.active) return;
  var cvs=$('jloFanCanvas');
  var rect=cvs.getBoundingClientRect();
  var mx=(e.clientX-rect.left)*(cvs.width/rect.width);
  var my=(e.clientY-rect.top)*(cvs.height/rect.height);
  var cx=cvs.width/2,cy=cvs.height-20,len=78;
  // Find nearest line
  var best=-1,bestDist=999;
  for(var n=1;n<=11;n++){
    var deg=jloAngle(n);var rad=deg*Math.PI/180;
    var lx=cx+Math.cos(rad)*len,ly=cy-Math.sin(rad)*len;
    // Distance from click to line endpoint
    var dx=mx-lx,dy=my-ly;
    var dist=Math.sqrt(dx*dx+dy*dy);
    // Also check along the line
    var ex=Math.cos(rad),ey=-Math.sin(rad);
    var t=Math.max(0,Math.min(len,(mx-cx)*ex+(my-cy)*ey));
    var px=cx+ex*t,py=cy+ey*t;
    var ldist=Math.sqrt((mx-px)*(mx-px)+(my-py)*(my-py));
    dist=Math.min(dist,ldist);
    if(dist<bestDist){bestDist=dist;best=n;}
  }
  if(bestDist>28||best<0) return;
  var idx=_JLO.selected.indexOf(best);
  if(idx>=0) _JLO.selected.splice(idx,1);  // deselect
  else if(_JLO.selected.length<2) _JLO.selected.push(best);
  $('jloSelected').textContent='Selected: '+(_JLO.selected.length?_JLO.selected.slice().sort(function(a,b){return a-b;}).join(' & '):'—');
  $('jloConfirmBtn').style.display=_JLO.selected.length===2?'block':'none';
  jloDrawFan();
}

function jloConfirm(){
  if(!_JLO||!_JLO.active||_JLO.selected.length!==2) return;
  var rt=+(performance.now()-_JLO.stimOn).toFixed(1);
  var correct=_JLO.selected.indexOf(_JLO.stimAngles[0])>=0&&
              _JLO.selected.indexOf(_JLO.stimAngles[1])>=0;
  if(correct)_JLO.correct++;
  _JLO.log.push({trial:_JLO.trial,target:_JLO.stimAngles.slice(),
                 response:_JLO.selected.slice(),correct:correct,rt:rt});
  var fb=$('jloFeedback');
  fb.textContent=correct?'✓ Correct':('✗ — correct lines were '+_JLO.stimAngles.join(' & '));
  fb.className='feedback '+(correct?'ok':'err');
  $('jloConfirmBtn').style.display='none';
  setTimeout(function(){if(_JLO&&_JLO.active)jloNext();},correct?500:900);
}

function jloEnd(){
  _JLO.active=false;
  $('jloStimPhase').style.display='none';
  $('jloProgressBar').style.width='100%';
  if(_JLO.isPractice){
    $('pcStats').innerHTML='CORRECT <span>'+_JLO.correct+'</span> / '+_JLO.maxTrials;
    hideAll();$('practiceComplete').style.display='flex';return;
  }
  window._jlo_log=_JLO.log;$('exportBtn').disabled=false;
  var acc=(_JLO.correct/_JLO.maxTrials*100).toFixed(0);
  var rtValid=_JLO.log.filter(function(r){return r.rt;});
  var avgRT=rtValid.length?(rtValid.reduce(function(a,b){return a+b.rt;},0)/rtValid.length).toFixed(0):'—';
  $('jloMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+_JLO.correct+'/'+_JLO.maxTrials+'</div><div class="vm-lbl">Correct</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+acc+'%</div><div class="vm-lbl">Accuracy</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+avgRT+'ms</div><div class="vm-lbl">Avg RT</div></div>';
  $('jloResultsPhase').style.display='block';
  cognosRecordResult('JLO','JLO',{score:($('jloMetrics')||{textContent:''}).textContent.trim().replace(/\s+/g,' ').substring(0,120)},[]); updateSidebar();
}

function jloExportCSV(){
  var log=window._jlo_log;if(!log)return;
  var blob=new Blob(['trial,target1,target2,resp1,resp2,correct,rt_ms\n'+log.map(function(r){
    return[r.trial,r.target[0],r.target[1],r.response[0]||'',r.response[1]||'',r.correct?1:0,r.rt].join(',');
  }).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='jlo_'+Date.now()+'.csv';a.click();
}

// ══════════════════════════════════════════════════════════
// RESULTS STORAGE — session + localStorage
// ══════════════════════════════════════════════════════════

// ══════════════════════════════════════════════════════════
// PARTICIPANT — session intake (questionnaire gate)
// Holds the current participant/session metadata, persisted locally.
// Every COGNOS_RESULTS.record() stamps these fields onto the entry, and
// exports carry them as columns + in the filename, so a results file is
// always identifiable across all tasks.
// ══════════════════════════════════════════════════════════
var PARTICIPANT = (function(){
  var KEY='cognos_participant_v1';
  var ROSTER_KEY='cognos_participant_roster_v1';
  var _p = null;
  function load(){ try{ var r=localStorage.getItem(KEY); return r?JSON.parse(r):null; }catch(e){ return null; } }
  function save(){ try{ if(_p) localStorage.setItem(KEY, JSON.stringify(_p)); else localStorage.removeItem(KEY); }catch(e){} }
  // ── Roster: a local directory of saved participant PROFILES (demographics),
  //    keyed by participantId. Per-session fields (sessionId, sessionLabel,
  //    startedAt) are NOT stored here — a fresh session is generated each time. ─
  function rosterLoad(){ try{ var r=localStorage.getItem(ROSTER_KEY); return r?JSON.parse(r):[]; }catch(e){ return []; } }
  function rosterSave(list){ try{ localStorage.setItem(ROSTER_KEY, JSON.stringify(list)); }catch(e){} }
  function getRoster(){ return rosterLoad(); }
  function saveToRoster(p){
    if(!p || !p.participantId || p.anonymous) return;  // never store anonymous
    var profile={
      participantId: p.participantId,
      age:        p.age||'',
      sex:        p.sex||'',
      handedness: p.handedness||'',
      education:  p.education||'',
      notes:      p.notes||'',
      updatedAt:  new Date().toISOString()
    };
    var list=rosterLoad();
    var i=list.findIndex(function(x){ return x.participantId===profile.participantId; });
    if(i>=0) list[i]=profile; else list.push(profile);
    list.sort(function(a,b){ return a.participantId.localeCompare(b.participantId); });
    rosterSave(list);
  }
  function recallFromRoster(id){
    var list=rosterLoad();
    return list.find(function(x){ return x.participantId===id; }) || null;
  }
  function removeFromRoster(id){
    var list=rosterLoad().filter(function(x){ return x.participantId!==id; });
    rosterSave(list);
  }
  function set(data){
    _p = Object.assign({
      participantId:'', sessionLabel:'', age:'', sex:'', handedness:'',
      education:'', notes:'', consent:false, anonymous:false
    }, data||{});
    if(!_p.sessionId) _p.sessionId = 'S'+Date.now().toString(36)+Math.floor(Math.random()*1296).toString(36);
    _p.startedAt = new Date().toISOString();
    save();
    saveToRoster(_p);   // upsert this participant's profile into the local roster
    return _p;
  }
  function get(){ if(_p===null) _p=load(); return _p; }
  function clear(){ _p=null; save(); }
  // Flat field map for stamping onto result rows / export columns.
  function fields(){
    var p=get()||{};
    return {
      participant_id: p.participantId||(p.anonymous?'ANONYMOUS':''),
      session_id:     p.sessionId||'',
      session_label:  p.sessionLabel||'',
      age:            p.age||'',
      sex:            p.sex||'',
      handedness:     p.handedness||'',
      education:      p.education||''
    };
  }
  return { set:set, get:get, clear:clear, fields:fields,
           getRoster:getRoster, recallFromRoster:recallFromRoster,
           removeFromRoster:removeFromRoster, saveToRoster:saveToRoster };
})();

function _pqShowError(msg){
  var e=document.getElementById('pqError');
  if(e){ e.textContent=msg; e.style.display='block'; }
}
function participantStart(){
  var id=(document.getElementById('pq-id')||{}).value;
  id=(id||'').trim();
  var consent=(document.getElementById('pq-consent')||{}).checked;
  if(!id){ _pqShowError('Participant ID is required (or choose "Skip — run anonymously").'); return; }
  if(!consent){ _pqShowError('Please confirm the consent checkbox to begin.'); return; }
  PARTICIPANT.set({
    participantId: id,
    sessionLabel: (document.getElementById('pq-session')||{}).value||'',
    age:          (document.getElementById('pq-age')||{}).value||'',
    sex:          (document.getElementById('pq-sex')||{}).value||'',
    handedness:   (document.getElementById('pq-hand')||{}).value||'',
    education:    (document.getElementById('pq-edu')||{}).value||'',
    notes:        (document.getElementById('pq-notes')||{}).value||'',
    consent:      true,
    anonymous:    false
  });
  _participantEnterHome();
}
function participantSkip(){
  PARTICIPANT.set({ participantId:'', anonymous:true, consent:false });
  _participantEnterHome();
}
function _participantEnterHome(){
  var ps=document.getElementById('participantScreen');
  if(ps) ps.style.display='none';
  var home=document.getElementById('home');
  if(home) home.style.display='flex';
  participantUpdateHomeLine();
}
function participantUpdateHomeLine(){
  var line=document.getElementById('home-participant-line');
  if(!line) return;
  var p=PARTICIPANT.get();
  if(p && (p.participantId || p.anonymous)){
    var who = p.anonymous ? 'ANONYMOUS SESSION' : ('PARTICIPANT: '+p.participantId);
    if(p.sessionLabel) who += ' · '+p.sessionLabel;
    line.textContent = who + '  ·  ✎ edit';
    line.style.cursor='pointer';
    line.title='Click to change participant / start a new session';
    line.onclick=participantReopen;
    line.style.display='block';
  } else {
    line.style.display='none';
  }
}
// Re-open the questionnaire (e.g. to start a new participant/session).
function participantReopen(){
  var p=PARTICIPANT.get()||{};
  var g=function(id){ return document.getElementById(id); };
  if(g('pq-id'))      g('pq-id').value      = p.anonymous?'':(p.participantId||'');
  if(g('pq-session')) g('pq-session').value = p.sessionLabel||'';
  if(g('pq-age'))     g('pq-age').value     = p.age||'';
  if(g('pq-sex'))     g('pq-sex').value     = p.sex||'';
  if(g('pq-hand'))    g('pq-hand').value    = p.handedness||'';
  if(g('pq-edu'))     g('pq-edu').value     = p.education||'';
  if(g('pq-notes'))   g('pq-notes').value   = p.notes||'';
  if(g('pq-consent')) g('pq-consent').checked = !!p.consent;
  if(g('pqError'))    g('pqError').style.display='none';
  participantPopulateRoster();
  if(typeof hideAll==='function') hideAll();
  var ps=g('participantScreen'); if(ps) ps.style.display='flex';
}

// ── Roster recall UI ────────────────────────────────────────
// Populate the "Recall saved participant" dropdown from the local roster.
function participantPopulateRoster(){
  var sel=document.getElementById('pq-recall');
  var wrap=document.getElementById('pqRecallWrap');
  if(!sel) return;
  var roster=(PARTICIPANT.getRoster?PARTICIPANT.getRoster():[]) || [];
  // rebuild options
  sel.innerHTML='<option value="">— select a saved participant —</option>';
  roster.forEach(function(p){
    var o=document.createElement('option');
    o.value=p.participantId;
    var bits=[p.participantId];
    if(p.age) bits.push(p.age+'y');
    if(p.sex) bits.push(p.sex);
    o.textContent=bits.join(' · ');
    sel.appendChild(o);
  });
  // only show the recall panel if there's at least one saved participant
  if(wrap) wrap.style.display = roster.length ? 'block' : 'none';
}
// Selecting a saved participant fills the form (a fresh session begins on Start).
function participantRecallPick(id){
  if(!id) return;
  var p=PARTICIPANT.recallFromRoster?PARTICIPANT.recallFromRoster(id):null;
  if(!p) return;
  var g=function(x){ return document.getElementById(x); };
  if(g('pq-id'))    g('pq-id').value    = p.participantId||'';
  if(g('pq-age'))   g('pq-age').value   = p.age||'';
  if(g('pq-sex'))   g('pq-sex').value   = p.sex||'';
  if(g('pq-hand'))  g('pq-hand').value  = p.handedness||'';
  if(g('pq-edu'))   g('pq-edu').value   = p.education||'';
  if(g('pq-notes')) g('pq-notes').value = p.notes||'';
  // Session label is intentionally left blank — it's per-session, not per-person.
  if(g('pq-session')) g('pq-session').value='';
  if(g('pqError')) g('pqError').style.display='none';
}
// Delete the currently-selected saved participant from this device.
function participantRecallDelete(){
  var sel=document.getElementById('pq-recall');
  var id=sel?sel.value:'';
  if(!id){ _pqShowError('Select a saved participant to delete first.'); return; }
  if(!confirm('Remove "'+id+'" from this device\u2019s saved participants? Their recorded results are NOT deleted.')) return;
  if(PARTICIPANT.removeFromRoster) PARTICIPANT.removeFromRoster(id);
  participantPopulateRoster();
}
// Gate: on load, show the questionnaire if no participant set this session.
document.addEventListener('DOMContentLoaded', function(){
  try{
    var home=document.getElementById('home');
    var ps=document.getElementById('participantScreen');
    if(!ps) return;
    participantPopulateRoster();
    var existing=PARTICIPANT.get();
    if(existing && (existing.participantId || existing.anonymous)){
      // Already have a participant from this device — go straight to home,
      // but show who it is with an edit affordance.
      ps.style.display='none';
      if(home) home.style.display='flex';
      participantUpdateHomeLine();
    } else {
      if(home) home.style.display='none';
      ps.style.display='flex';
    }
  }catch(e){}
});

var COGNOS_RESULTS = (function(){
  var STORAGE_KEY = 'cognos_results_v1';
  var _session = [];  // results this page visit

  // ── Load from localStorage ──────────────────────────────
  function load(){
    try{
      var raw=localStorage.getItem(STORAGE_KEY);
      return raw?JSON.parse(raw):[];
    }catch(e){return [];}
  }

  // ── Save to localStorage ────────────────────────────────
  function save(history){
    try{ localStorage.setItem(STORAGE_KEY, JSON.stringify(history)); }
    catch(e){ console.warn('localStorage full:', e); }
  }

  // ── Record a result (called by each task on completion) ─
  function record(taskKey, label, metrics, rawLog){
    var pf = (typeof PARTICIPANT!=='undefined' && PARTICIPANT.fields) ? PARTICIPANT.fields() : {};
    var entry = {
      id:       Date.now(),
      task:     taskKey,
      label:    label,
      ts:       new Date().toISOString(),
      participant: pf,    // {participant_id, session_id, session_label, age, sex, handedness, education}
      metrics:  metrics,   // {key:value,...} summary
      rawLog:   rawLog||[] // per-trial data
    };
    // Session
    _session.push(entry);
    // Persistent
    var history = load();
    history.push(entry);
    // Cap at 500 entries to avoid localStorage overflow
    if(history.length > 500) history = history.slice(-500);
    save(history);
    // Update sidebar
    var sCount = document.getElementById('si-session-count');
    var sLast  = document.getElementById('si-session-last');
    if(sCount) sCount.textContent = _session.length;
    if(sLast){
      var mKeys = Object.keys(metrics);
      if(mKeys.length){
        var k=mKeys[0];
        sLast.textContent = label+' '+k+':'+metrics[k];
      }
    }
    // Mark this task's tile completed for the session.
    try{ if(typeof refreshTaskTileChecks==='function') refreshTaskTileChecks(); }catch(e){}
    return entry;
  }

  // ── Get all history ─────────────────────────────────────
  function getHistory(){ return load(); }
  function getSession(){ return _session.slice(); }

  // ── Clear ───────────────────────────────────────────────
  function clear(){
    try{ localStorage.removeItem(STORAGE_KEY); }catch(e){}
    _session=[];
    var sCount=document.getElementById('si-session-count');
    var sLast=document.getElementById('si-session-last');
    if(sCount) sCount.textContent='0';
    if(sLast)  sLast.textContent='—';
  }

  return { record:record, getHistory:getHistory, getSession:getSession, clear:clear };
})();

// ── Task-tile completion checkmarks ─────────────────────────
// Mark every tile whose task has produced a result THIS SESSION with a green
// checkmark badge (see .task-tile.completed CSS). Derived from the session
// results so it always reflects what's actually been recorded.
// Session-scoped set of tasks that have completed PRACTICE (yellow check).
// Distinct from COGNOS_RESULTS (recorded real runs → green check).
var PRACTICE_DONE = (function(){
  var KEY='cognos_practice_done_v1';
  var _set=null;
  function load(){ if(_set) return _set; try{ var r=localStorage.getItem(KEY); _set=r?JSON.parse(r):{}; }catch(e){ _set={}; } if(typeof _set!=='object'||!_set) _set={}; return _set; }
  function save(){ try{ localStorage.setItem(KEY, JSON.stringify(load())); }catch(e){} }
  function mark(code){ if(!code) return; var s=load(); s[String(code).toUpperCase()]=true;
    if(String(code).toUpperCase()==='MMNS') s['MMNSP']=true; save(); }
  function has(code){ return !!load()[String(code).toUpperCase()]; }
  function all(){ return Object.keys(load()); }
  function clear(){ _set={}; save(); }
  return { mark:mark, has:has, all:all, clear:clear };
})();

function refreshTaskTileChecks(){
  try{
    // Recorded (real) completions → green.
    var done = {};
    (COGNOS_RESULTS.getSession()||[]).forEach(function(e){
      if(e && e.task) done[String(e.task).toUpperCase()] = true;
      if(e && String(e.task).toUpperCase()==='MMNS') done['MMNSP']=true;
    });
    // Practice-only completions → yellow.
    var prac = {};
    (PRACTICE_DONE.all()||[]).forEach(function(c){ prac[c]=true; });
    var tiles = document.querySelectorAll('.task-tile');
    Array.prototype.forEach.call(tiles, function(t){
      var code = (t.getAttribute('data-task')||'').toUpperCase();
      // green if recorded
      if(code && done[code]) t.classList.add('completed'); else t.classList.remove('completed');
      // yellow if practiced (CSS makes green win when both are present)
      if(code && prac[code]) t.classList.add('practiced'); else t.classList.remove('practiced');
    });
  }catch(e){}
}
// Mark practice-complete the moment the shared #practiceComplete screen shows.
// A MutationObserver hooks every call site (76+) without editing each.
document.addEventListener('DOMContentLoaded', function(){
  try{
    var pc=document.getElementById('practiceComplete');
    if(!pc || typeof MutationObserver==='undefined') return;
    var obs=new MutationObserver(function(){
      var visible = pc.style.display && pc.style.display!=='none';
      if(visible && typeof currentIntroTask!=='undefined' && currentIntroTask){
        PRACTICE_DONE.mark(currentIntroTask);
        refreshTaskTileChecks();
      }
    });
    obs.observe(pc, { attributes:true, attributeFilter:['style'] });
  }catch(e){}
  // Auto-record the moment ANY task's results phase becomes visible — this does
  // not depend on each task remembering to call updateSidebar()/cognosAutoRecord
  // (several didn't, e.g. P300, CSR, N200, MoCA), so the green check is reliable.
  try{
    if(typeof MutationObserver!=='undefined'){
      var phases=document.querySelectorAll('[id$="ResultsPhase"]');
      if(phases.length){
        var rObs=new MutationObserver(function(muts){
          // Any style change on a results phase → re-run the recorder, which
          // itself verifies real visibility, practice mode, and de-dupes.
          for(var i=0;i<muts.length;i++){
            var t=muts[i].target;
            if(t && t.style && t.style.display && t.style.display!=='none'){
              try{ cognosAutoRecord(); }catch(e){}
              break;
            }
          }
        });
        Array.prototype.forEach.call(phases, function(p){
          rObs.observe(p, { attributes:true, attributeFilter:['style'] });
        });
        window._cognosResultObserverCount = phases.length;
      }
    }
  }catch(e){}
  try{ refreshTaskTileChecks(); }catch(e){}
});


// Screen keys that carry a *ResultsPhase. Discovered once from the DOM so new
// tasks are covered automatically (no hand-maintained list to drift).
function _cognosResultScreenKeys(){
  if(_cognosResultScreenKeys._cache && _cognosResultScreenKeys._cache.length) return _cognosResultScreenKeys._cache;
  var keys=[];
  var els=document.querySelectorAll('[id$="ResultsPhase"]');
  Array.prototype.forEach.call(els, function(el){
    var m=/^(.*)ResultsPhase$/.exec(el.id);
    if(m && m[1]) keys.push(m[1]);
  });
  // Only cache once we actually found screens — avoids locking in an empty list
  // if this runs before the task screens exist in the DOM.
  if(keys.length) _cognosResultScreenKeys._cache=keys;
  return keys;
}
// Resolve a task's per-trial SEQUENCE log (standard/deviant order, onsets, etc.)
// for ERP processing. Most tasks expose window._<key>_log; a few use a named
// state object's .log. Returns an array (possibly empty).
function _cognosSequenceLog(key){
  try{
    var w=window['_'+key+'_log'];
    if(Array.isArray(w)) return w;
    var w2=window['_'+key.toUpperCase()+'_log'];
    if(Array.isArray(w2)) return w2;
    // Named state-object fallback (resolves const/let-scoped engines too).
    var obj=_cognosResolveTaskObj(key);
    if(obj && Array.isArray(obj.log)) return obj.log;
  }catch(e){}
  return [];
}
// Resolve a task's state object by name. Many engines are declared with
// `const`/`let` (e.g. `const MMN = {...}`), which do NOT become window props,
// so window[name] misses them. Since this code shares the same top-level script
// scope, a guarded eval can see those lexical bindings. Tries _UPPER, UPPER,
// and the raw key.
function _cognosResolveTaskObj(key){
  // A few tasks declare their engine under a name that differs from the task
  // code / tile (e.g. tile MMNSP is driven by `const MMNS`). Map those so the
  // resolver — and therefore the live sidebar — can find them.
  var ALIAS={ MMNSP:'MMNS', POSNER:'P', RECALL:'FR' };
  var k=String(key).toUpperCase();
  var names=['_'+k, k, key];
  if(ALIAS[k]){ names.push('_'+ALIAS[k], ALIAS[k]); }
  for(var i=0;i<names.length;i++){
    var nm=names[i];
    // window first (covers var/window-assigned globals like _ORN)
    try{ if(window[nm] && typeof window[nm]==='object') return window[nm]; }catch(e){}
    // lexical const/let fallback
    try{
      // eslint-disable-next-line no-eval
      var o=eval('(typeof '+nm+' !== "undefined") ? '+nm+' : undefined');
      if(o && typeof o==='object') return o;
    }catch(e){}
  }
  return null;
}
// Is the task behind this results screen currently in PRACTICE mode?
function _cognosTaskIsPractice(key){
  try{
    var o=_cognosResolveTaskObj(key);
    if(o && typeof o.isPractice==='boolean') return o.isPractice;
  }catch(e){}
  return false;
}
// True only if el and all its ancestors are actually rendered (no display:none
// anywhere up the chain). Used so a stale results-phase div left at display:block
// under a hidden parent screen is not mistaken for the just-finished task.
function _cognosIsReallyVisible(el){
  var n=el;
  while(n && n.nodeType===1){
    if(n.style && n.style.display==='none') return false;
    var cs=null; try{ cs=window.getComputedStyle(n); }catch(e){}
    if(cs && cs.display==='none') return false;
    n=n.parentElement;
  }
  return true;
}
function cognosAutoRecord(){
  // Find the currently-visible results phase (whichever task just finished) and
  // record it: summary metrics + trial count + the full per-trial sequence.
  var keys=_cognosResultScreenKeys();
  for(var i=0;i<keys.length;i++){
    var key=keys[i];
    var phase=document.getElementById(key+'ResultsPhase');
    // The phase div keeps its own display:block even after its parent *Screen is
    // hidden by hideAll(), so checking phase.style.display alone matches STALE
    // results from a prior task. Require the phase to be truly on-screen.
    if(phase && phase.style.display!=='none' && phase.style.display!=='' && _cognosIsReallyVisible(phase)){
      var code=key.toUpperCase();
      // PRACTICE run → yellow check only, never a recorded (green) result.
      if(_cognosTaskIsPractice(key)){
        try{ if(typeof PRACTICE_DONE!=='undefined') PRACTICE_DONE.mark(code); }catch(e){}
        try{ if(typeof refreshTaskTileChecks==='function') refreshTaskTileChecks(); }catch(e){}
        return;
      }
      var metrics=document.getElementById(key+'Metrics');
      var scoreText=metrics?metrics.textContent.trim().replace(/\s+/g,' ').substring(0,160):'';
      var seq=_cognosSequenceLog(key);
      var nTrials = seq.length || _cognosTrialCountFromText(scoreText);
      var summary={ score: scoreText||('completed'), trials: nTrials };
      // Avoid double-recording the same completed screen on repeated
      // updateSidebar() calls: skip if the last session entry is this task
      // with an identical trial count and score.
      try{
        var sess=COGNOS_RESULTS.getSession();
        var last=sess.length?sess[sess.length-1]:null;
        if(last && last.task===code && last.metrics &&
           last.metrics.score===summary.score && last.metrics.trials===summary.trials){
          return;
        }
      }catch(e){}
      COGNOS_RESULTS.record(code, code, summary, seq);  // seq → entry.rawLog (the ERP sequence)
      return;
    }
  }
}
// Best-effort trial count from a metrics string when no sequence log exists.
function _cognosTrialCountFromText(t){
  if(!t) return 0;
  var m=/(\d+)\s*(?:trials?|stimuli|presented|items?)/i.exec(t);
  return m?parseInt(m[1],10):0;
}

// ── UI functions ────────────────────────────────────────────
function showResultsHistory(){
  var screen = document.getElementById('resultsHistoryScreen');
  if(!screen) return;
  screen.style.display='flex';
  renderResultsHistory();
}
function hideResultsHistory(){
  var screen = document.getElementById('resultsHistoryScreen');
  if(screen) screen.style.display='none';
}
function clearResultsHistory(){
  purgeAllResults();
}
// Full purge: clear recorded results AND practice completions, then reset the
// session count, the tile checkmarks, and the (possibly open) history view.
function purgeAllResults(){
  if(!confirm('Purge ALL stored results and practice marks from this device? This cannot be undone.\n\n(Saved participants are NOT affected.)')) return;
  try{ COGNOS_RESULTS.clear(); }catch(e){}
  try{ if(typeof PRACTICE_DONE!=='undefined') PRACTICE_DONE.clear(); }catch(e){}
  try{ if(typeof refreshTaskTileChecks==='function') refreshTaskTileChecks(); }catch(e){}
  try{ if(typeof renderResultsHistory==='function') renderResultsHistory(); }catch(e){}
  var sCount=document.getElementById('si-session-count'); if(sCount) sCount.textContent='0';
  var sLast=document.getElementById('si-session-last'); if(sLast) sLast.textContent='—';
}

function renderResultsHistory(){
  var list = document.getElementById('resultsHistoryList');
  var empty = document.getElementById('resultsHistoryEmpty');
  if(!list) return;
  var history = COGNOS_RESULTS.getHistory();
  list.innerHTML='';
  if(!history.length){
    if(empty) empty.style.display='block';
    return;
  }
  if(empty) empty.style.display='none';
  // Show newest first
  history.slice().reverse().forEach(function(entry){
    var div=document.createElement('div');
    div.style.cssText='border:1px solid #1a2f44;border-radius:3px;padding:10px 14px;background:#0a1620;';
    var dt=new Date(entry.ts);
    var dateStr=dt.toLocaleDateString()+' '+dt.toLocaleTimeString([], {hour:'2-digit',minute:'2-digit'});
    var metricStr=Object.entries(entry.metrics).map(function(kv){
      return '<span style="color:var(--gold)">'+kv[0]+':</span> '+kv[1];
    }).join(' &nbsp;·&nbsp; ');
    div.innerHTML=
      '<div style="display:flex;justify-content:space-between;align-items:baseline;margin-bottom:4px;">'+
        '<span style="font-family:serif;font-size:1rem;color:var(--gold);letter-spacing:0.06em;">'+
          entry.label+'</span>'+
        '<span style="font-size:0.72rem;color:var(--dim);font-family:monospace;">'+dateStr+'</span>'+
      '</div>'+
      '<div style="font-size:0.8rem;color:var(--mid);font-family:monospace;line-height:1.8;">'+
        metricStr+'</div>'+
      (entry.rawLog&&entry.rawLog.length?
        '<div style="font-size:0.7rem;color:var(--dim);margin-top:2px;">'+entry.rawLog.length+' trials recorded</div>':'');
    list.appendChild(div);
  });
}

function exportAllResultsCSV(){
  var history = COGNOS_RESULTS.getHistory();
  if(!history.length){ alert('No results to export.'); return; }
  var rows=['participant_id,session_id,session_label,age,sex,handedness,education,task,label,timestamp,metric_key,metric_value'];
  function esc(v){ v=(v==null?'':String(v)); return /[",\n]/.test(v)?('"'+v.replace(/"/g,'""')+'"'):v; }
  history.forEach(function(entry){
    var p=entry.participant||{};
    Object.entries(entry.metrics).forEach(function(kv){
      rows.push([p.participant_id,p.session_id,p.session_label,p.age,p.sex,p.handedness,p.education,
                 entry.task,entry.label,entry.ts,kv[0],kv[1]].map(esc).join(','));
    });
  });
  var blob=new Blob([rows.join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download=_resultsFilename('csv');a.click();
}

// Build a participant-keyed filename, e.g. cognos_P001_S1a2b3c_20260523.csv
function _resultsFilename(ext){
  var pf=(typeof PARTICIPANT!=='undefined'&&PARTICIPANT.fields)?PARTICIPANT.fields():{};
  var id=(pf.participant_id||'anon').replace(/[^A-Za-z0-9_-]+/g,'') || 'anon';
  var sid=(pf.session_id||'').replace(/[^A-Za-z0-9_-]+/g,'');
  var d=new Date(), ymd=d.getFullYear()+String(d.getMonth()+1).padStart(2,'0')+String(d.getDate()).padStart(2,'0');
  return 'cognos_'+id+(sid?('_'+sid):'')+'_'+ymd+'.'+ext;
}

function exportAllResultsJSON(){
  var history = COGNOS_RESULTS.getHistory();
  if(!history.length){ alert('No results to export.'); return; }
  var payload={
    participant: (typeof PARTICIPANT!=='undefined'?PARTICIPANT.get():null),
    exportedAt: new Date().toISOString(),
    nResults: history.length,
    results: history
  };
  var blob=new Blob([JSON.stringify(payload,null,2)],{type:'application/json'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download=_resultsFilename('json');a.click();
}

// Per-trial SEQUENCE export for ERP processing. Emits one row per trial across
// every recorded task, flattening each entry's rawLog (the stimulus sequence:
// standard/deviant order, onsets, trigger-relevant fields). Columns are the
// union of all per-trial keys seen, so MMN's {type,freq,onset}, ORN's
// {mistuned}, etc. all line up under a shared header. Rows that carry a
// stimulus onset are exactly what you align to the EEG triggers.
function exportSequenceCSV(){
  var history = COGNOS_RESULTS.getHistory();
  if(!history.length){ alert('No results to export.'); return; }
  // Collect the union of trial-level field keys.
  var trialKeys={};
  history.forEach(function(e){
    (e.rawLog||[]).forEach(function(tr){
      if(tr && typeof tr==='object') Object.keys(tr).forEach(function(k){ trialKeys[k]=true; });
    });
  });
  var tk=Object.keys(trialKeys);
  // Stable, ERP-friendly ordering: trial/onset-ish fields first.
  var pref=['trial','idx','index','onset','t','type','condition','mistuned','sensible',
            'natural','phonMismatch','isDeviant','deviant','isTarget','target','freq','syllable'];
  tk.sort(function(a,b){
    var ia=pref.indexOf(a), ib=pref.indexOf(b);
    if(ia<0) ia=999; if(ib<0) ib=999;
    return ia!==ib ? ia-ib : a.localeCompare(b);
  });
  function esc(v){ v=(v==null?'':(typeof v==='object'?JSON.stringify(v):String(v))); return /[",\n]/.test(v)?('"'+v.replace(/"/g,'""')+'"'):v; }
  var header=['participant_id','session_id','task','label','timestamp','seq_index'].concat(tk);
  var rows=[header.join(',')];
  var anyTrials=false;
  history.forEach(function(e){
    var p=e.participant||{};
    var log=e.rawLog||[];
    log.forEach(function(tr,idx){
      anyTrials=true;
      var base=[p.participant_id,p.session_id,e.task,e.label,e.ts,idx+1];
      var rest=tk.map(function(k){ return (tr&&typeof tr==='object')?esc(tr[k]):''; });
      rows.push(base.map(esc).concat(rest).join(','));
    });
  });
  if(!anyTrials){ alert('No per-trial sequence data was recorded for these tasks.'); return; }
  var blob=new Blob([rows.join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download=_resultsFilename('csv').replace(/\.csv$/, '_sequence.csv');a.click();
}

// ── Hook into task completions ──────────────────────────────
// Called by each task's end function — pass summary metrics and raw log
function cognosRecordResult(taskKey, label, metrics, rawLog){
  COGNOS_RESULTS.record(taskKey, label, metrics, rawLog);
}

// ══════════════════════════════════════════════════════════
// PASAT — Paced Auditory Serial Addition Test
// ══════════════════════════════════════════════════════════
var _PASAT = null;

function startPASAT(isPractice){
  // ISI options (ms): practice=3000, standard=3000, fast=2000, very fast=1600
  var ISI = isPractice ? 3000 : 2400;  // 2.4s standard — classic clinical rate
  var N_DIGITS = isPractice ? 12 : 61; // 61 digits → 60 additions

  _PASAT = {
    active:true, isPractice:isPractice,
    digits:[], idx:0, nDigits:N_DIGITS, isi:ISI,
    correct:0, total:0, log:[],
    _stimTimer:null, _paceRAF:null, _digitOnset:0
  };

  // Generate random digit sequence (1–9, no consecutive repeats)
  var seq=[]; var last=0;
  for(var i=0;i<N_DIGITS;i++){
    var d; do{ d=1+Math.floor(Math.random()*9); }while(d===last);
    seq.push(d); last=d;
  }
  _PASAT.digits=seq;

  hideAll();
  $('pasatScreen','ravltScreen','cvltScreen','igtScreen','tolScreen','rmetScreen').style.display='flex';
  $('pasatPracticeBanner').style.display=isPractice?'block':'none';
  $('pasatProgressBar').style.width='0%';
  $('pasatStimPhase').style.display='flex';
  $('pasatResultsPhase').style.display='none';
  $('pasat-pace').textContent=ISI+'ms ISI';
  $('pasat-score').textContent='0';
  $('pasat-trial').textContent='—';
  $('si-task').textContent='PASAT'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;
  $('pasatPrev').textContent='—';
  $('pasatCurr').textContent='—';
  $('pasatFeedback').textContent='';$('pasatFeedback').className='feedback';

  var inp=$('pasatInput');
  inp.value=''; inp.disabled=false; inp.focus();
  inp.onkeydown=function(e){
    if(!_PASAT||!_PASAT.active) return;
    if(e.key==='Enter'){
      e.preventDefault();
      pasatSubmit();
    }
  };

  // Start after a brief ready pause
  setTimeout(function(){ if(_PASAT&&_PASAT.active) pasatNextDigit(); }, 1500);
}

function pasatNextDigit(){
  if(!_PASAT||!_PASAT.active) return;
  if(_PASAT.idx >= _PASAT.nDigits){ pasatEnd(); return; }

  var digit = _PASAT.digits[_PASAT.idx];
  var prev  = _PASAT.idx>0 ? _PASAT.digits[_PASAT.idx-1] : null;

  // Update display
  $('pasatCurr').textContent = digit;
  $('pasatCurr').style.color = 'var(--gold)';
  $('pasatPrev').textContent = prev!==null ? prev : '—';
  $('pasatProgressBar').style.width = (_PASAT.idx/_PASAT.nDigits*100).toFixed(1)+'%';
  $('pasat-trial').textContent = 'Digit '+(_PASAT.idx+1)+'/'+_PASAT.nDigits;

  // Clear input for this digit
  var inp=$('pasatInput');
  inp.value=''; inp.focus();

  // Play a tone to signal new digit
  try{
    var actx=new(window.AudioContext||window.webkitAudioContext)();
    var osc=actx.createOscillator();var g=actx.createGain();
    osc.frequency.value=660+(_PASAT.idx%2)*220; osc.type='sine';
    g.gain.setValueAtTime(0.12,actx.currentTime);
    g.gain.linearRampToValueAtTime(0,actx.currentTime+0.06);
    osc.connect(g);g.connect(actx.destination);osc.start();osc.stop(actx.currentTime+0.06);
    setTimeout(function(){actx.close();},300);
  }catch(e){}

  triggerFlash();
  _PASAT._digitOnset=performance.now();
  _PASAT.idx++;

  // Start pace countdown bar
  var paceStart=performance.now();
  function paceBar(){
    if(!_PASAT||!_PASAT.active) return;
    var elapsed=performance.now()-paceStart;
    var pct=Math.max(0,1-elapsed/_PASAT.isi);
    $('pasatPaceBar').style.width=(pct*100)+'%';
    $('pasatPaceBar').style.background=pct>0.3?'var(--gold)':'#e05c5c';
    if(pct>0) _PASAT._paceRAF=requestAnimationFrame(paceBar);
  }
  _PASAT._paceRAF=requestAnimationFrame(paceBar);

  // Auto-advance after ISI (scoring miss if no response for addition trials)
  _PASAT._stimTimer=setTimeout(function(){
    if(!_PASAT||!_PASAT.active) return;
    // Score as miss if this was an addition trial (idx>=2)
    if(_PASAT.idx>=2 && $('pasatInput').value===''){
      pasatScoreTrial(null, _PASAT.digits[_PASAT.idx-2], _PASAT.digits[_PASAT.idx-1]);
    }
    $('pasatFeedback').textContent='';$('pasatFeedback').className='feedback';
    pasatNextDigit();
  }, _PASAT.isi);
}

function pasatSubmit(){
  if(!_PASAT||!_PASAT.active||_PASAT.idx<2) return;
  clearTimeout(_PASAT._stimTimer);
  if(_PASAT._paceRAF){ cancelAnimationFrame(_PASAT._paceRAF); _PASAT._paceRAF=null; }
  var val=parseInt($('pasatInput').value);
  pasatScoreTrial(isNaN(val)?null:val, _PASAT.digits[_PASAT.idx-2], _PASAT.digits[_PASAT.idx-1]);
  $('pasatInput').value='';
  setTimeout(function(){ if(_PASAT&&_PASAT.active) pasatNextDigit(); }, 150);
}

function pasatScoreTrial(response, prev, curr){
  var correct_answer = prev+curr;
  var correct = response===correct_answer;
  if(correct) _PASAT.correct++;
  _PASAT.total++;
  var rt=+(performance.now()-_PASAT._digitOnset).toFixed(1);
  _PASAT.log.push({trial:_PASAT.total,prev:prev,curr:curr,
    correct_answer:correct_answer,response:response,correct:correct,rt:rt});
  var fb=$('pasatFeedback');
  if(response===null){
    fb.textContent='miss';fb.className='feedback err';
  } else {
    fb.textContent=correct?'✓ '+correct_answer:'✗ '+correct_answer+' (said '+response+')';
    fb.className='feedback '+(correct?'ok':'err');
  }
  $('pasat-score').textContent=_PASAT.correct;
}

function pasatEnd(){
  if(!_PASAT||!_PASAT.active) return;
  _PASAT.active=false;
  clearTimeout(_PASAT._stimTimer);
  if(_PASAT._paceRAF) cancelAnimationFrame(_PASAT._paceRAF);
  var inp=$('pasatInput'); inp.disabled=true; inp.onkeydown=null;
  $('pasatStimPhase').style.display='none';
  $('pasatProgressBar').style.width='100%';

  if(_PASAT.isPractice){
    $('pcStats').innerHTML='CORRECT <span>'+_PASAT.correct+'</span> / '+_PASAT.total;
    hideAll();$('practiceComplete').style.display='flex';return;
  }
  window._pasat_log=_PASAT.log;$('exportBtn').disabled=false;
  var acc=_PASAT.total?(_PASAT.correct/_PASAT.total*100).toFixed(0):'—';
  var rtValid=_PASAT.log.filter(function(r){return r.rt&&r.response!==null;});
  var avgRT=rtValid.length?(rtValid.reduce(function(a,b){return a+b.rt;},0)/rtValid.length).toFixed(0):'—';
  var misses=_PASAT.log.filter(function(r){return r.response===null;}).length;
  $('pasatMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+_PASAT.correct+'/'+_PASAT.total+'</div><div class="vm-lbl">Correct</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+acc+'%</div><div class="vm-lbl">Accuracy</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+avgRT+'ms</div><div class="vm-lbl">Avg RT</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+misses+'</div><div class="vm-lbl">Misses</div></div>';
  $('pasatResultsPhase').style.display='block';
  updateSidebar();
}

function pasatExportCSV(){
  var log=window._pasat_log;if(!log)return;
  var blob=new Blob(['trial,prev,curr,correct_answer,response,correct,rt_ms\n'+log.map(function(r){
    return[r.trial,r.prev,r.curr,r.correct_answer,r.response!=null?r.response:'',r.correct?1:0,r.rt].join(',');
  }).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='pasat_'+Date.now()+'.csv';a.click();
}

// ══════════════════════════════════════════════════════════
// RAVLT — Rey Auditory Verbal Learning Test
// ══════════════════════════════════════════════════════════
var _RAVLT = null;

// Standard List A and List B (Taylor, 1959 form)
var RAVLT_LIST_A = ['drum','curtain','bell','coffee','school','parent','moon','garden','hat','farmer','nose','turkey','color','house','river'];
var RAVLT_LIST_B = ['desk','ranger','bird','shoe','stove','mountain','glasses','towel','cloud','boat','lamb','gun','pencil','church','fish'];

function startRAVLT(isPractice){
  _RAVLT = {
    active:true, isPractice:isPractice,
    phase:'', trial:0,
    recallData:{},   // {I:[], II:[], III:[], IV:[], V:[], B:[], VI:[], VII:[]}
    currentRecall:[], currentList:[], currentListName:'',
    _studyTimer:null, _delayTimer:null, _delayRAF:null,
    delayStart:0
  };

  hideAll();
  $('ravltScreen','cvltScreen','igtScreen','tolScreen','rmetScreen').style.display='flex';
  $('ravltPracticeBanner').style.display=isPractice?'block':'none';
  $('ravltProgressBar').style.width='0%';
  ['ravltStudyPhase','ravltRecallPhase','ravltDelayPhase','ravltResultsPhase'].forEach(function(id){
    $(id).style.display='none';
  });
  $('si-task').textContent='RAVLT'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;

  // Practice: just Trial I
  if(isPractice){
    ravltStartStudy('I', RAVLT_LIST_A);
  } else {
    ravltStartStudy('I', RAVLT_LIST_A);
  }
}

function ravltStartStudy(trialName, wordList){
  if(!_RAVLT||!_RAVLT.active) return;
  _RAVLT.phase=trialName;
  _RAVLT.currentList=wordList;
  _RAVLT.currentListName=trialName;
  var isB=trialName==='B';
  $('ravlt-phase').textContent=tr('TRIAL ')+trialName;
  $('ravlt-status').textContent='Read — '+(isB?'List B interference':'List A');
  $('ravltProgressBar').style.width=({I:5,II:20,III:35,IV:50,V:65,B:75,VI:85,VII:100}[trialName]||0)+'%';

  $('ravltStudyPhase').style.display='flex';
  $('ravltRecallPhase').style.display='none';
  $('ravltWord').textContent='';

  // Read words one per second
  var wi=0;
  function readNext(){
    if(!_RAVLT||!_RAVLT.active) return;
    if(wi>=wordList.length){
      // Done reading — start recall
      $('ravltWord').textContent='';
      setTimeout(function(){
        if(_RAVLT&&_RAVLT.active) ravltStartRecog(trialName, wordList);
      }, 800);
      return;
    }
    $('ravltWord').textContent=wordList[wi];
    triggerFlash();
    wi++;
    _RAVLT._studyTimer=setTimeout(readNext, 1000);
  }
  // Brief pause then start reading
  setTimeout(readNext, 1200);
}

function ravltStartRecall(trialName, studiedList){
  if(!_RAVLT||!_RAVLT.active) return;
  _RAVLT.currentRecall=[];
  _RAVLT.recallData[trialName]=[];

  $('ravltStudyPhase').style.display='none';
  $('ravltRecallPhase').style.display='flex';
  $('ravlt-phase').textContent=tr('RECALL ')+trialName;
  $('ravlt-status').textContent='Say all words you remember';
  $('ravltRecallInstruct').textContent=
    'Type every word from the '+(trialName==='B'?'B list':'A list')+' you can remember, in any order.';
  $('ravltWordList').innerHTML='';
  $('ravltRecallCount').textContent='';

  var inp=$('ravltInput');
  inp.value=''; inp.disabled=false; inp.focus();
  inp.onkeydown=function(e){
    if(e.key!=='Enter') return;
    e.preventDefault();
    var w=inp.value.trim().toLowerCase().replace(/[^a-z]/g,'');
    inp.value='';
    if(!w) return;
    if(_RAVLT.currentRecall.indexOf(w)>=0) return; // duplicate
    _RAVLT.currentRecall.push(w);
    var isCorrect=studiedList.indexOf(w)>=0;
    var chip=document.createElement('span');
    chip.textContent=w;
    chip.style.cssText='font-size:0.8rem;font-family:"Source Code Pro",monospace;'+
      'padding:2px 8px;border-radius:2px;border:1px solid;'+
      (isCorrect?'color:var(--gold);background:rgba(212,180,86,0.1);border-color:rgba(212,180,86,0.3);':
                 'color:#e05c5c;background:rgba(224,92,92,0.08);border-color:rgba(224,92,92,0.25);');
    $('ravltWordList').appendChild(chip);
    var hits=_RAVLT.currentRecall.filter(function(w2){return studiedList.indexOf(w2)>=0;}).length;
    $('ravltRecallCount').textContent=hits+' / '+studiedList.length+' words recalled';
  };
}

var RAVLT_FOIL_POOL = ['window','candle','wagon','pillow','market','soldier','flower','engine','valley','ribbon','anchor','meadow','tractor','blanket','saddle','kettle','harbor','pebble','cabin','lantern'];

// Recognition (OLD/NEW) variant of a recall trial — typing-free. Presents the
// studied list (targets) mixed with foils; participant presses F=OLD / J=NEW.
// The per-trial hit count drives the same learning curve as recall.
function ravltStartRecog(trialName, studiedList){
  if(!_RAVLT||!_RAVLT.active) return;
  _RAVLT.currentListName=trialName;
  _RAVLT.currentList=studiedList;
  _RAVLT.recallData[trialName]=[];
  var studiedSet={}; studiedList.forEach(function(w){ studiedSet[w]=1; });
  var foilSrc=RAVLT_LIST_B.concat(RAVLT_FOIL_POOL).filter(function(w){ return !studiedSet[w]; });
  foilSrc=foilSrc.sort(function(){return Math.random()-0.5;});
  var nFoil=Math.min(studiedList.length, foilSrc.length);
  var foils=foilSrc.slice(0,nFoil);
  _RAVLT.recogList=studiedList.map(function(w){return {word:w,old:true};})
                  .concat(foils.map(function(w){return {word:w,old:false};}))
                  .sort(function(){return Math.random()-0.5;});
  _RAVLT.recogIdx=0;
  _RAVLT.recogResp=[];

  $('ravltStudyPhase').style.display='none';
  $('ravltRecallPhase').style.display='none';
  $('ravltRecogPhase').style.display='flex';
  $('ravlt-phase').textContent=tr('RECOGNITION ')+trialName;
  $('ravlt-status').textContent='Was each word on the list?';
  $('ravltRecogInstruct').textContent='For each word, press F if it was on the '+(trialName==='B'?'B list':'A list')+' you just saw, J if it was not.';
  $('ravltRecogFeedback').textContent='';
  ravltRecogNext();
}
function ravltRecogNext(){
  if(!_RAVLT||!_RAVLT.active) return;
  if(_RAVLT.recogIdx>=_RAVLT.recogList.length){ ravltRecogDone(); return; }
  var item=_RAVLT.recogList[_RAVLT.recogIdx];
  _RAVLT.recogOnset=performance.now();
  $('ravltRecogWord').textContent=item.word;
  $('ravltRecogCount').textContent=_RAVLT.recogIdx+' / '+_RAVLT.recogList.length;
  try{ triggerFlash(); }catch(e){}
}
function ravltRecogAnswer(saidOld){
  if(!_RAVLT||!_RAVLT.active) return;
  var item=_RAVLT.recogList[_RAVLT.recogIdx];
  if(!item) return;
  var correct=(saidOld===item.old);
  _RAVLT.recogResp.push({word:item.word,old:item.old,saidOld:saidOld,correct:correct,
    rt:+(performance.now()-(_RAVLT.recogOnset||performance.now())).toFixed(1)});
  var btn=saidOld?$('ravltRecogOld'):$('ravltRecogNew');
  if(btn){ btn.classList.add(correct?'flash-ok':'flash-err'); setTimeout(function(){ btn.classList.remove('flash-ok','flash-err'); },250); }
  try{ Trigger.send(correct?1:2,'RAVLT_recog',{trial:_RAVLT.currentListName,old:item.old,saidOld:saidOld}); }catch(e){}
  _RAVLT.recogIdx++;
  setTimeout(ravltRecogNext,260);
}
document.addEventListener('keydown',function ravltRecogKey(e){
  if(!_RAVLT||!_RAVLT.active) return;
  if($('ravltRecogPhase').style.display==='none') return;
  if(e.target&&(e.target.tagName==='INPUT'||e.target.tagName==='TEXTAREA')) return;
  var k=(e.key||'').toLowerCase();
  if(k==='f'){ e.preventDefault(); ravltRecogAnswer(true); }
  else if(k==='j'){ e.preventDefault(); ravltRecogAnswer(false); }
});
function ravltRecogDone(){
  if(!_RAVLT||!_RAVLT.active) return;
  var trialName=_RAVLT.currentListName;
  var resp=_RAVLT.recogResp||[];
  var hits=resp.filter(function(r){return r.old&&r.saidOld;});
  var fa=resp.filter(function(r){return !r.old&&r.saidOld;});
  _RAVLT.recallData[trialName]={
    recalled:hits.map(function(r){return r.word;}),
    hits:hits.map(function(r){return r.word;}),
    intrusions:fa.map(function(r){return r.word;}),
    falseAlarms:fa.length,
    score:hits.length,
    recogResp:resp.slice()
  };
  if(_RAVLT.isPractice){ ravltEnd(); return; }
  ravltAdvanceAfter(trialName);
}
// Shared "what comes next" sequencer.
function ravltAdvanceAfter(trialName){
  var seq=['I','II','III','IV','V','B','VI'];
  var idx=seq.indexOf(trialName);
  if(trialName==='VII'){ ravltEnd(); return; }
  if(idx<0||idx===seq.length-1){ ravltStartDelay(); return; }
  if(trialName==='B'){ ravltStartRecog('VI', RAVLT_LIST_A); return; }
  if(trialName==='V'){ ravltStartStudy('B', RAVLT_LIST_B); return; }
  ravltStartStudy(seq[idx+1], RAVLT_LIST_A);
}

function ravltDoneRecall(){
  if(!_RAVLT||!_RAVLT.active) return;
  var inp=$('ravltInput'); inp.disabled=true; inp.onkeydown=null;
  var trialName=_RAVLT.currentListName;
  var studiedList=_RAVLT.currentList;
  // Score
  var hits=_RAVLT.currentRecall.filter(function(w){return studiedList.indexOf(w)>=0;});
  var intrusions=_RAVLT.currentRecall.filter(function(w){return studiedList.indexOf(w)<0;});
  _RAVLT.recallData[trialName]={
    recalled:_RAVLT.currentRecall.slice(), hits:hits, intrusions:intrusions,
    score:hits.length
  };

  if(_RAVLT.isPractice){ ravltEnd(); return; }

  // Advance to next phase
  var seq=['I','II','III','IV','V','B','VI'];
  var idx=seq.indexOf(trialName);
  if(idx<0||idx===seq.length-1){
    // After Trial VI → delay
    ravltStartDelay();
  } else if(trialName==='B'){
    // After B → Trial VI (immediate recall of A without re-reading)
    ravltStartRecall('VI', RAVLT_LIST_A);
    $('ravlt-phase').textContent='TRIAL VI';
    $('ravlt-status').textContent='Recall List A (no re-reading)';
    $('ravltRecallInstruct').textContent='Recall List A words — do not include List B words.';
    _RAVLT.currentList=RAVLT_LIST_A;
    _RAVLT.currentListName='VI';
    $('ravltWordList').innerHTML='';$('ravltRecallCount').textContent='';
    var inp2=$('ravltInput');inp2.value='';inp2.disabled=false;inp2.focus();
    inp2.onkeydown=function(e){
      if(e.key!=='Enter') return; e.preventDefault();
      var w=inp2.value.trim().toLowerCase().replace(/[^a-z]/g,''); inp2.value='';
      if(!w||_RAVLT.currentRecall.indexOf(w)>=0) return;
      _RAVLT.currentRecall.push(w);
      var isCorrect=RAVLT_LIST_A.indexOf(w)>=0;
      var chip=document.createElement('span');chip.textContent=w;
      chip.style.cssText='font-size:0.8rem;font-family:"Source Code Pro",monospace;padding:2px 8px;border-radius:2px;border:1px solid;'+
        (isCorrect?'color:var(--gold);background:rgba(212,180,86,0.1);border-color:rgba(212,180,86,0.3);':
                   'color:#e05c5c;background:rgba(224,92,92,0.08);border-color:rgba(224,92,92,0.25);');
      $('ravltWordList').appendChild(chip);
      var h=_RAVLT.currentRecall.filter(function(w2){return RAVLT_LIST_A.indexOf(w2)>=0;}).length;
      $('ravltRecallCount').textContent=h+' / 15 words recalled';
    };
    _RAVLT.currentRecall=[];
  } else if(trialName==='V'){
    // After V → List B
    ravltStartStudy('B', RAVLT_LIST_B);
  } else {
    // I→II, II→III, III→IV, IV→V
    var nextTrial=seq[idx+1];
    ravltStartStudy(nextTrial, RAVLT_LIST_A);
  }
}

function ravltStartDelay(){
  if(!_RAVLT||!_RAVLT.active) return;
  $('ravltRecallPhase').style.display='none';
  $('ravltDelayPhase').style.display='flex';
  $('ravlt-phase').textContent=tr('DELAY');
  $('ravlt-status').textContent='20 minutes';
  _RAVLT.delayStart=performance.now();
  var DELAY=20*60*1000;
  function tick(){
    if(!_RAVLT||!_RAVLT.active) return;
    var elapsed=performance.now()-_RAVLT.delayStart;
    var rem=Math.max(0,DELAY-elapsed);
    var m=Math.floor(rem/60000),s=Math.floor((rem%60000)/1000);
    $('ravltDelayTimer').textContent=(m<10?'0':'')+m+':'+(s<10?'0':'')+s;
    if(rem<=0){ ravltStartDelayedRecall(); return; }
    _RAVLT._delayRAF=requestAnimationFrame(tick);
  }
  _RAVLT._delayRAF=requestAnimationFrame(tick);
}

function ravltStartDelayedRecall(){
  if(!_RAVLT||!_RAVLT.active) return;
  if(_RAVLT._delayRAF){ cancelAnimationFrame(_RAVLT._delayRAF); _RAVLT._delayRAF=null; }
  $('ravltDelayPhase').style.display='none';
  // Delayed recognition of List A (typing-free).
  ravltStartRecog('VII', RAVLT_LIST_A);
}

function ravltEnd(){
  if(!_RAVLT) return;
  _RAVLT.active=false;
  ['ravltStudyPhase','ravltRecallPhase','ravltRecogPhase','ravltDelayPhase'].forEach(function(id){$(id).style.display='none';});
  $('ravltProgressBar').style.width='100%';
  var rd=_RAVLT.recallData;

  if(_RAVLT.isPractice){
    var s=rd['I']?rd['I'].score:0;
    $('pcStats').innerHTML='Trial I <span>'+s+'/15</span>';
    hideAll();$('practiceComplete').style.display='flex';return;
  }
  window._ravlt_data=rd;$('exportBtn').disabled=false;

  var scores={};
  ['I','II','III','IV','V','B','VI','VII'].forEach(function(t){
    scores[t]=rd[t]&&typeof rd[t].score==='number'?rd[t].score:'—';
  });
  var totalIV=(['I','II','III','IV','V'].reduce(function(a,t){return a+(rd[t]&&rd[t].score?rd[t].score:0);},0));
  var retention=(rd['VII']&&rd['V']&&rd['V'].score)?((rd['VII'].score/rd['V'].score)*100).toFixed(0)+'%':'—';
  var totalFA=['I','II','III','IV','V','B','VI','VII'].reduce(function(a,t){return a+(rd[t]&&rd[t].falseAlarms?rd[t].falseAlarms:0);},0);

  $('ravltMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+totalIV+'</div><div class="vm-lbl">Total I–V (hits)</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(scores['V']||'—')+'</div><div class="vm-lbl">Trial V</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(scores['VII']||'—')+'</div><div class="vm-lbl">Delayed (VII)</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+retention+'</div><div class="vm-lbl">Retention</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+totalFA+'</div><div class="vm-lbl">False alarms</div></div>';

  $('ravltTrialBreakdown').innerHTML=
    ['I','II','III','IV','V','B','VI','VII'].map(function(t){
      return '<span style="color:var(--gold)">'+t+':</span> '+(scores[t]||'—')+'/15';
    }).join('&nbsp;&nbsp;');
  $('ravltResultsPhase').style.display='block';
  updateSidebar();
}

function ravltExportCSV(){
  var d=window._ravlt_data;if(!d)return;
  var rows=['trial,word,was_on_list,responded_old,correct,rt_ms'];
  ['I','II','III','IV','V','B','VI','VII'].forEach(function(t){
    if(!d[t]||!d[t].recogResp)return;
    d[t].recogResp.forEach(function(r){
      rows.push([t, r.word, r.old?1:0, r.saidOld?1:0, r.correct?1:0, r.rt].join(','));
    });
  });
  var blob=new Blob([rows.join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='ravlt_recognition_'+Date.now()+'.csv';a.click();
}

// ══════════════════════════════════════════════════════════
// CVLT — California Verbal Learning Test
// ══════════════════════════════════════════════════════════
var _CVLT = null;

// Monday list A — 4 categories × 4 items
var CVLT_CATS = {
  Fruits:   ['apple','mango','peach','cherry'],
  Tools:    ['hammer','wrench','pliers','chisel'],
  Clothing: ['blouse','jacket','sandal','glove'],
  Spices:   ['pepper','ginger','nutmeg','clove']
};
var CVLT_LIST_A = [];
(function(){ Object.keys(CVLT_CATS).forEach(function(cat){ CVLT_CATS[cat].forEach(function(w){ CVLT_LIST_A.push({word:w,cat:cat}); }); }); })();
// Shuffle for presentation order (interleaved)
var CVLT_PRESENT_A = (function(){
  var arr=CVLT_LIST_A.slice();
  for(var i=arr.length-1;i>0;i--){var j=Math.floor(Math.random()*(i+1));var tmp=arr[i];arr[i]=arr[j];arr[j]=tmp;}
  return arr;
})();

// Tuesday list B — interference
var CVLT_LIST_B = [{word:'violin',cat:'Instruments'},{word:'celery',cat:'Vegetables'},
  {word:'trumpet',cat:'Instruments'},{word:'carrot',cat:'Vegetables'},
  {word:'flute',cat:'Instruments'},{word:'broccoli',cat:'Vegetables'},
  {word:'drum',cat:'Instruments'},{word:'onion',cat:'Vegetables'},
  {word:'guitar',cat:'Instruments'},{word:'spinach',cat:'Vegetables'},
  {word:'piano',cat:'Instruments'},{word:'potato',cat:'Vegetables'},
  {word:'banjo',cat:'Instruments'},{word:'garlic',cat:'Vegetables'},
  {word:'harp',cat:'Instruments'},{word:'turnip',cat:'Vegetables'}];

// Recognition foils (same-category and unrelated)
var CVLT_FOILS = ['grape','mango','nail','brush','sweater','boot','cinnamon','cumin',
  'violin','celery','table','ocean','river','window','camera','sunset'];

function startCVLT(isPractice){
  _CVLT = {
    active:true, isPractice:isPractice,
    trialScores:{},     // {T1:n, T2:n, T3:n, T4:n, T5:n, B:n, SDFR:n, SDCR:n, LDFR:n, LDCR:n}
    recallData:{},
    recogData:[],
    currentRecall:[], currentPhase:'',
    _studyTimer:null, _delayRAF:null, delayStart:0
  };

  hideAll();
  $('cvltScreen','igtScreen','tolScreen','rmetScreen').style.display='flex';
  $('cvltPracticeBanner').style.display=isPractice?'block':'none';
  $('cvltProgressBar').style.width='0%';
  ['cvltStudyPhase','cvltFreeRecallPhase','cvltCuedRecallPhase',
   'cvltRecogPhase','cvltDelayPhase','cvltResultsPhase'].forEach(function(id){$(id).style.display='none';});
  $('si-task').textContent='CVLT'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;

  cvltStudy('T1', isPractice ? 1 : null);
}

function cvltStudy(trialName, maxTrials){
  if(!_CVLT||!_CVLT.active) return;
  _CVLT.currentPhase=trialName;
  var list=trialName==='B'?CVLT_LIST_B:CVLT_PRESENT_A;
  var pct={T1:5,T2:18,T3:31,T4:44,T5:57,B:67,SDFR:72,SDCR:77,LDFR:87,LDCR:92}[trialName]||0;
  $('cvltProgressBar').style.width=pct+'%';
  $('cvlt-phase').textContent=tr('TRIAL ')+trialName;
  $('cvlt-status').textContent=trialName==='B'?'Tuesday list (interference)':'Monday list';
  $('cvltStudyPhase').style.display='flex';
  $('cvltFreeRecallPhase').style.display='none';
  $('cvltWord').textContent=''; $('cvltWordCat').textContent='';

  var wi=0;
  function readNext(){
    if(!_CVLT||!_CVLT.active) return;
    if(wi>=list.length){
      $('cvltWord').textContent=''; $('cvltWordCat').textContent='';
      setTimeout(function(){ if(_CVLT&&_CVLT.active) cvltStartRecog(trialName, list, function(){ cvltAfterRecog(trialName); }); }, 800);
      return;
    }
    $('cvltWord').textContent=list[wi].word;
    $('cvltWordCat').textContent=list[wi].cat.toUpperCase();
    triggerFlash();
    wi++;
    _CVLT._studyTimer=setTimeout(readNext, 1000);
  }
  setTimeout(readNext, 1200);
}

function cvltFreeRecall(trialName, studiedList){
  if(!_CVLT||!_CVLT.active) return;
  _CVLT.currentRecall=[];
  $('cvltStudyPhase').style.display='none';
  $('cvltFreeRecallPhase').style.display='flex';
  $('cvlt-phase').textContent=tr('FREE RECALL ')+trialName;
  $('cvlt-status').textContent='Say all words you remember';
  $('cvltFRInstruct').textContent=
    'Recall every word from '+(trialName==='B'?"Tuesday's":"Monday's")+' list, in any order.';
  $('cvltWordList').innerHTML=''; $('cvltFRCount').textContent='';
  var inp=$('cvltInput'); inp.value=''; inp.disabled=false; inp.focus();
  inp.onkeydown=function(e){
    if(e.key!=='Enter') return; e.preventDefault();
    var w=inp.value.trim().toLowerCase().replace(/[^a-z]/g,''); inp.value='';
    if(!w||_CVLT.currentRecall.indexOf(w)>=0) return;
    _CVLT.currentRecall.push(w);
    var isHit=studiedList.some(function(item){return item.word===w;});
    var chip=document.createElement('span'); chip.textContent=w;
    chip.style.cssText='font-size:0.8rem;font-family:"Source Code Pro",monospace;padding:2px 8px;border-radius:2px;border:1px solid;'+
      (isHit?'color:var(--gold);background:rgba(212,180,86,0.1);border-color:rgba(212,180,86,0.3);':
             'color:#e05c5c;background:rgba(224,92,92,0.08);border-color:rgba(224,92,92,0.25);');
    $('cvltWordList').appendChild(chip);
    var hits=_CVLT.currentRecall.filter(function(w2){return studiedList.some(function(i){return i.word===w2;});}).length;
    $('cvltFRCount').textContent=hits+' / '+studiedList.length+' words recalled';
  };
  _CVLT._currentStudiedList=studiedList;
}

// Per-trial recognition (OLD/NEW) — typing-free replacement for free recall.
// Shows the studied list (targets) mixed with foils; F=OLD, J=NEW. Records
// hits/false-alarms; the per-trial hit count drives the learning curve.
function cvltStartRecog(trialName, studiedList, nextFn){
  if(!_CVLT||!_CVLT.active) return;
  _CVLT.currentPhase=trialName;
  var targets=studiedList.map(function(i){return i.word;});
  var tset={}; targets.forEach(function(w){tset[w]=1;});
  // Foils: list B words + the recognition foil pool, excluding studied words.
  var foilSrc=CVLT_LIST_B.map(function(i){return i.word;}).concat(CVLT_FOILS)
                .filter(function(w){return !tset[w];});
  foilSrc=foilSrc.sort(function(){return Math.random()-0.5;});
  var foils=foilSrc.slice(0, Math.min(targets.length, foilSrc.length));
  var items=targets.map(function(w){return {word:w,old:true};})
              .concat(foils.map(function(w){return {word:w,old:false};}))
              .sort(function(){return Math.random()-0.5;});
  _CVLT._recog={items:items, idx:0, resp:[], studied:studiedList, next:nextFn, trial:trialName};

  ['cvltStudyPhase','cvltFreeRecallPhase','cvltCuedRecallPhase','cvltDelayPhase'].forEach(function(id){$(id).style.display='none';});
  $('cvltRecogPhase').style.display='flex';
  $('cvlt-phase').textContent=tr('RECOGNITION ')+trialName;
  $('cvlt-status').textContent='Was each word on the list?';
  cvltRecogNext();
}
function cvltRecogNext(){
  if(!_CVLT||!_CVLT.active||!_CVLT._recog) return;
  var R=_CVLT._recog;
  if(R.idx>=R.items.length){ cvltRecogTrialDone(); return; }
  var item=R.items[R.idx];
  R.onset=performance.now();
  $('cvltRecogWord').textContent=item.word;
  $('cvltRecogProgress').textContent=(R.idx+1)+' / '+R.items.length;
  $('cvltRecogFeedback').textContent=''; $('cvltRecogFeedback').className='feedback';
  try{ triggerFlash(); }catch(e){}
}
function cvltRecogAnswer(saidOld){
  if(!_CVLT||!_CVLT.active||!_CVLT._recog) return;
  var R=_CVLT._recog; var item=R.items[R.idx]; if(!item) return;
  var correct=(saidOld===item.old);
  R.resp.push({word:item.word,old:item.old,saidOld:saidOld,correct:correct,
    rt:+(performance.now()-(R.onset||performance.now())).toFixed(1)});
  var btn=saidOld?$('cvltRecogOld'):$('cvltRecogNew');
  if(btn){ btn.classList.add(correct?'flash-ok':'flash-err'); setTimeout(function(){ btn.classList.remove('flash-ok','flash-err'); },220); }
  try{ Trigger.send(correct?1:2,'CVLT_recog',{trial:R.trial,old:item.old,saidOld:saidOld}); }catch(e){}
  R.idx++;
  setTimeout(cvltRecogNext,240);
}
document.addEventListener('keydown',function cvltRecogKey(e){
  if(!_CVLT||!_CVLT.active||!_CVLT._recog) return;
  if($('cvltRecogPhase').style.display==='none') return;
  if(e.target&&(e.target.tagName==='INPUT'||e.target.tagName==='TEXTAREA')) return;
  var k=(e.key||'').toLowerCase();
  if(k==='f'){ e.preventDefault(); cvltRecogAnswer(true); }
  else if(k==='j'){ e.preventDefault(); cvltRecogAnswer(false); }
});
function cvltRecogTrialDone(){
  if(!_CVLT||!_CVLT.active||!_CVLT._recog) return;
  var R=_CVLT._recog;
  var hits=R.resp.filter(function(r){return r.old&&r.saidOld;});
  var fa=R.resp.filter(function(r){return !r.old&&r.saidOld;});
  // semantic clustering: consecutive hits from the same category
  var clusters=0,lastCat=null;
  R.resp.forEach(function(r){
    if(r.old&&r.saidOld){
      var it=CVLT_PRESENT_A.find(function(i){return i.word===r.word;});
      var c=it?it.cat:null;
      if(c&&c===lastCat) clusters++;
      lastCat=c;
    }
  });
  _CVLT.recallData[R.trial]={recalled:hits.map(function(r){return r.word;}),
    hits:hits.map(function(r){return r.word;}), intrusions:fa.map(function(r){return r.word;}),
    falseAlarms:fa.length, score:hits.length, clustering:clusters, recogResp:R.resp.slice()};
  _CVLT.trialScores[R.trial]=hits.length;
  var nextFn=R.next; _CVLT._recog=null;
  if(_CVLT.isPractice){ cvltEnd(); return; }
  if(typeof nextFn==='function') nextFn();
}

// Sequences the CVLT trials, all via recognition (no typing). Cued-recall
// steps are omitted since they require spoken/typed category responses.
function cvltAfterRecog(trialName){
  if(!_CVLT||!_CVLT.active) return;
  if(trialName==='T5'){ cvltStudy('B', null); return; }
  if(trialName==='B'){
    cvltStartRecog('SDFR', CVLT_PRESENT_A, function(){ cvltAfterRecog('SDFR'); }); return;
  }
  if(trialName==='SDFR'){ cvltStartDelay(); return; }
  if(trialName==='LDFR'){ cvltRecognition(); return; }
  if(trialName[0]==='T'){ cvltStudy('T'+(parseInt(trialName[1],10)+1), null); return; }
  cvltRecognition();
}

function cvltDoneFreeRecall(){
  if(!_CVLT||!_CVLT.active) return;
  var inp=$('cvltInput'); inp.disabled=true; inp.onkeydown=null;
  var trialName=_CVLT.currentPhase;
  var studiedList=_CVLT._currentStudiedList;
  var hits=_CVLT.currentRecall.filter(function(w){return studiedList.some(function(i){return i.word===w;});});
  var intrusions=_CVLT.currentRecall.filter(function(w){return !studiedList.some(function(i){return i.word===w;});});
  _CVLT.recallData[trialName]={recalled:_CVLT.currentRecall.slice(),hits:hits,intrusions:intrusions,score:hits.length};
  _CVLT.trialScores[trialName]=hits.length;

  // Compute semantic clustering for this trial
  var catSeq=[]; var lastCat=null; var clusters=0;
  _CVLT.currentRecall.forEach(function(w){
    var item=CVLT_PRESENT_A.find(function(i){return i.word===w;});
    if(item){if(item.cat===lastCat)clusters++;lastCat=item.cat;}else lastCat=null;
  });
  _CVLT.recallData[trialName].clustering=clusters;

  if(_CVLT.isPractice){ cvltEnd(); return; }

  // Advance
  var seq=['T1','T2','T3','T4','T5','B','SDFR'];
  var idx=seq.indexOf(trialName);
  if(trialName==='T5'){
    cvltStudy('B', null); // interference
  } else if(trialName==='B'){
    // Short-delay free recall of A
    _CVLT.currentPhase='SDFR';
    cvltFreeRecall('SDFR', CVLT_PRESENT_A);
    $('cvlt-phase').textContent=tr('SHORT DELAY FREE RECALL');
    $('cvlt-status').textContent='Monday list — no re-reading';
    $('cvltFRInstruct').textContent="Recall Monday's list — do not include Tuesday's words.";
    $('cvltWordList').innerHTML=''; $('cvltFRCount').textContent='';
    var inp2=$('cvltInput'); inp2.value=''; inp2.disabled=false; inp2.focus();
    _CVLT.currentRecall=[];
    inp2.onkeydown=function(e){
      if(e.key!=='Enter') return; e.preventDefault();
      var w=inp2.value.trim().toLowerCase().replace(/[^a-z]/g,''); inp2.value='';
      if(!w||_CVLT.currentRecall.indexOf(w)>=0) return;
      _CVLT.currentRecall.push(w);
      var isHit=CVLT_PRESENT_A.some(function(i){return i.word===w;});
      var chip=document.createElement('span'); chip.textContent=w;
      chip.style.cssText='font-size:0.8rem;font-family:"Source Code Pro",monospace;padding:2px 8px;border-radius:2px;border:1px solid;'+
        (isHit?'color:var(--gold);background:rgba(212,180,86,0.1);border-color:rgba(212,180,86,0.3);':
               'color:#e05c5c;background:rgba(224,92,92,0.08);border-color:rgba(224,92,92,0.25);');
      $('cvltWordList').appendChild(chip);
      var h=_CVLT.currentRecall.filter(function(w2){return CVLT_PRESENT_A.some(function(i){return i.word===w2;});}).length;
      $('cvltFRCount').textContent=h+' / 16 words recalled';
    };
  } else if(trialName==='SDFR'){
    cvltCuedRecall('SDCR');
  } else if(trialName==='SDCR'){
    cvltStartDelay();
  } else if(trialName==='LDFR'){
    cvltCuedRecall('LDCR');
  } else if(trialName==='LDCR'){
    cvltRecognition();
  } else {
    // T1→T2→T3→T4
    var next='T'+(parseInt(trialName[1])+1);
    cvltStudy(next, null);
  }
}

function cvltCuedRecall(phase){
  if(!_CVLT||!_CVLT.active) return;
  _CVLT.currentPhase=phase;
  _CVLT.currentRecall=[];
  $('cvltFreeRecallPhase').style.display='none';
  $('cvltCuedRecallPhase').style.display='flex';
  $('cvlt-phase').textContent=phase==='SDCR'?'SHORT DELAY CUED RECALL':'LONG DELAY CUED RECALL';
  $('cvlt-status').textContent='Category cues given';
  $('cvltCRInstruct').textContent="Name items from Monday's list for each category:";
  var cueList=$('cvltCueList'); cueList.innerHTML='';
  var catResponses={};
  Object.keys(CVLT_CATS).forEach(function(cat){
    catResponses[cat]=[];
    var row=document.createElement('div');
    row.style.cssText='display:flex;gap:8px;align-items:center;';
    var lbl=document.createElement('div');
    lbl.textContent=cat+':'; lbl.style.cssText='width:80px;font-family:"Source Code Pro",monospace;font-size:0.82rem;color:var(--gold);flex-shrink:0;';
    var inp=document.createElement('input');
    inp.type='text'; inp.autocomplete='off'; inp.spellcheck=false;
    inp.placeholder='type item + Enter';
    inp.style.cssText='flex:1;background:#0a1620;border:1px solid #2a4060;color:var(--text);font-family:"EB Garamond",serif;font-size:1.1rem;padding:5px 10px;border-radius:2px;';
    var chips=document.createElement('div');
    chips.style.cssText='display:flex;gap:4px;flex-wrap:wrap;';
    inp.onkeydown=function(e){
      if(e.key!=='Enter') return; e.preventDefault();
      var w=inp.value.trim().toLowerCase().replace(/[^a-z]/g,''); inp.value='';
      if(!w||catResponses[cat].indexOf(w)>=0) return;
      catResponses[cat].push(w); _CVLT.currentRecall.push(w);
      var isHit=CVLT_CATS[cat].indexOf(w)>=0;
      var chip=document.createElement('span'); chip.textContent=w;
      chip.style.cssText='font-size:0.78rem;font-family:"Source Code Pro",monospace;padding:1px 6px;border-radius:2px;border:1px solid;'+
        (isHit?'color:var(--gold);border-color:rgba(212,180,86,0.4);':
               'color:#e05c5c;border-color:rgba(224,92,92,0.3);');
      chips.appendChild(chip);
    };
    row.appendChild(lbl); row.appendChild(inp); row.appendChild(chips);
    cueList.appendChild(row);
  });
  var doneBtn=document.createElement('button');
  doneBtn.className='intro-btn primary'; doneBtn.textContent='DONE ↵';
  doneBtn.style.marginTop='8px';
  doneBtn.onclick=function(){
    var hits=_CVLT.currentRecall.filter(function(w){return CVLT_PRESENT_A.some(function(i){return i.word===w;});});
    _CVLT.recallData[phase]={recalled:_CVLT.currentRecall.slice(),hits:hits,score:hits.length,catResponses:catResponses};
    _CVLT.trialScores[phase]=hits.length;
    $('cvltCuedRecallPhase').style.display='none';
    cvltDoneFreeRecall(); // reuse advance logic
  };
  cueList.appendChild(doneBtn);
}

function cvltStartDelay(){
  if(!_CVLT||!_CVLT.active) return;
  $('cvltCuedRecallPhase').style.display='none';
  $('cvltDelayPhase').style.display='flex';
  $('cvlt-phase').textContent=tr('DELAY'); $('cvlt-status').textContent='20 minutes';
  _CVLT.delayStart=performance.now();
  var DELAY=20*60*1000;
  function tick(){
    if(!_CVLT||!_CVLT.active) return;
    var rem=Math.max(0,DELAY-(performance.now()-_CVLT.delayStart));
    var m=Math.floor(rem/60000),s=Math.floor((rem%60000)/1000);
    $('cvltDelayTimer').textContent=(m<10?'0':'')+m+':'+(s<10?'0':'')+s;
    if(rem<=0){cvltSkipDelay();return;}
    _CVLT._delayRAF=requestAnimationFrame(tick);
  }
  _CVLT._delayRAF=requestAnimationFrame(tick);
}

function cvltSkipDelay(){
  if(!_CVLT||!_CVLT.active) return;
  if(_CVLT._delayRAF){cancelAnimationFrame(_CVLT._delayRAF);_CVLT._delayRAF=null;}
  $('cvltDelayPhase').style.display='none';
  // Long-delay recognition of List A (typing-free), then the final yes/no recognition trial.
  cvltStartRecog('LDFR', CVLT_PRESENT_A, function(){ cvltAfterRecog('LDFR'); });
}

function cvltRecognition(){
  if(!_CVLT||!_CVLT.active) return;
  // Final yes/no recognition over the full target+foil set, via the unified
  // recognition system (buttons + F/J). Marks the end of the task.
  var allTargets=CVLT_PRESENT_A;
  var tset={}; allTargets.forEach(function(i){tset[i.word]=1;});
  var foils=CVLT_FOILS.filter(function(w){return !tset[w];});
  var items=allTargets.map(function(i){return {word:i.word,old:true};})
              .concat(foils.map(function(w){return {word:w,old:false};}))
              .sort(function(){return Math.random()-0.5;});
  _CVLT._recog={items:items, idx:0, resp:[], studied:allTargets, next:function(){ cvltFinishRecog(); }, trial:'RECOG'};
  ['cvltStudyPhase','cvltFreeRecallPhase','cvltCuedRecallPhase','cvltDelayPhase'].forEach(function(id){$(id).style.display='none';});
  $('cvltRecogPhase').style.display='flex';
  $('cvlt-phase').textContent=tr('RECOGNITION'); $('cvlt-status').textContent='Yes / No';
  cvltRecogNext();
}
function cvltFinishRecog(){
  // Store the final recognition responses in the legacy recogData shape used
  // by cvltEnd's d′ computation, then finish.
  if(_CVLT && _CVLT.recallData['RECOG']){
    _CVLT.recogData=_CVLT.recallData['RECOG'].recogResp.map(function(r){
      return {word:r.word,isTarget:r.old,response:r.saidOld,correct:r.correct,rt:r.rt};
    });
  }
  cvltEnd();
}

function cvltEnd(){
  if(!_CVLT) return;
  _CVLT.active=false;
  if(_CVLT._delayRAF){cancelAnimationFrame(_CVLT._delayRAF);_CVLT._delayRAF=null;}
  ['cvltStudyPhase','cvltFreeRecallPhase','cvltCuedRecallPhase',
   'cvltRecogPhase','cvltDelayPhase'].forEach(function(id){$(id).style.display='none';});
  $('cvltProgressBar').style.width='100%';

  if(_CVLT.isPractice){
    var s=_CVLT.trialScores['T1']||0;
    $('pcStats').innerHTML='Trial 1 <span>'+s+'/16</span>';
    hideAll();$('practiceComplete').style.display='flex';return;
  }
  window._cvlt_data={trialScores:_CVLT.trialScores,recallData:_CVLT.recallData,recogData:_CVLT.recogData};
  $('exportBtn').disabled=false;

  var ts=_CVLT.trialScores;
  var totalT15=(ts.T1||0)+(ts.T2||0)+(ts.T3||0)+(ts.T4||0)+(ts.T5||0);
  var slope=ts.T5&&ts.T1?((ts.T5-ts.T1)/4).toFixed(1):'—';
  var retention=ts.T5&&ts.LDFR?((ts.LDFR/ts.T5)*100).toFixed(0)+'%':'—';
  var hits=_CVLT.recogData.filter(function(r){return r.isTarget&&r.response;}).length;
  var fas=_CVLT.recogData.filter(function(r){return !r.isTarget&&r.response;}).length;
  var dprime=_CVLT.recogData.length?
    ((hits/Math.max(1,_CVLT.recogData.filter(function(r){return r.isTarget;}).length)-
      fas/Math.max(1,_CVLT.recogData.filter(function(r){return !r.isTarget;}).length))*2).toFixed(2):'—';

  $('cvltMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+totalT15+'</div><div class="vm-lbl">Total T1–5</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+slope+'</div><div class="vm-lbl">Slope</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(ts.LDFR||'—')+'</div><div class="vm-lbl">LD Free Recall</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+retention+'</div><div class="vm-lbl">Retention</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+dprime+'</div><div class="vm-lbl">Recog d′</div></div>';

  $('cvltTrialBreakdown').innerHTML=
    ['T1','T2','T3','T4','T5','B','SDFR','SDCR','LDFR','LDCR'].map(function(t){
      return '<span style="color:var(--gold)">'+t+':</span> '+(ts[t]!==undefined?ts[t]:'—');
    }).join('&nbsp;&nbsp;');
  $('cvltResultsPhase').style.display='block';
  updateSidebar();
}

function cvltExportCSV(){
  var d=window._cvlt_data;if(!d)return;
  var rows=['phase,word,was_on_list,responded_old,correct,rt_ms'];
  Object.keys(d.recallData).forEach(function(phase){
    var rd=d.recallData[phase];if(!rd||!rd.recogResp)return;
    rd.recogResp.forEach(function(r){
      rows.push([phase, r.word, r.old?1:0, r.saidOld?1:0, r.correct?1:0, r.rt].join(','));
    });
  });
  var blob=new Blob([rows.join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='cvlt_recognition_'+Date.now()+'.csv';a.click();
}

// ══════════════════════════════════════════════════════════
// IGT — Iowa Gambling Task
// ══════════════════════════════════════════════════════════
var _IGT = null;

// Deck schedules (Bechara 1994 original)
// Each entry: [win, loss] — loss=0 means no penalty
// Net per 10 cards: A=-250, B=-250, C=+250, D=+250
var IGT_DECKS = {
  A: [[100,0],[100,0],[100,0],[100,150],[100,0],[100,0],[100,200],[100,0],[100,0],[100,250]],  // net -250
  B: [[100,0],[100,0],[100,0],[100,0],[100,0],[100,0],[100,0],[100,0],[100,0],[100,1250]], // net -250 (big infrequent)
  C: [[50,0],[50,0],[50,0],[50,50],[50,0],[50,0],[50,25],[50,0],[50,0],[50,75]],   // net +250
  D: [[50,0],[50,0],[50,0],[50,0],[50,0],[50,0],[50,0],[50,0],[50,0],[50,250]]     // net +250 (infrequent penalty)
};

function startIGT(isPractice){
  var TOTAL = isPractice ? 20 : 100;
  var deckIdx = {A:0,B:0,C:0,D:0};
  // Build full card sequences (repeat schedule)
  var decks = {};
  Object.keys(IGT_DECKS).forEach(function(d){
    var cards=[];
    while(cards.length<TOTAL) cards=cards.concat(IGT_DECKS[d].map(function(c){return{win:c[0],loss:c[1]};}));
    // Shuffle within each group of 10
    var shuffled=[];
    for(var i=0;i<cards.length;i+=10){
      var chunk=cards.slice(i,i+10).sort(function(){return Math.random()-0.5;});
      shuffled=shuffled.concat(chunk);
    }
    decks[d]=shuffled;
  });

  _IGT = {
    active:true, isPractice:isPractice, trial:0, maxTrials:TOTAL,
    balance:2000, log:[], deckPicks:{A:0,B:0,C:0,D:0},
    blockData:[], currentBlock:[], blockNum:0,
    decks:decks, deckIdx:{A:0,B:0,C:0,D:0}, waiting:true
  };

  hideAll();
  $('igtScreen','tolScreen','rmetScreen').style.display='flex';
  $('igtPracticeBanner').style.display=isPractice?'block':'none';
  $('igtProgressBar').style.width='0%';
  $('igtStimPhase').style.display='flex';
  $('igtResultsPhase').style.display='none';
  $('igt-balance').textContent='$2,000';
  $('igt-trial').textContent=tr('Trial')+' 0/'+TOTAL;
  $('igtFeedback').innerHTML='';
  $('igtBlockScores').innerHTML='';
  $('si-task').textContent='IGT'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;

  // Reset deck counts
  ['A','B','C','D'].forEach(function(d){ $('igtCount'+d).textContent=TOTAL; });
  ['A','B','C','D'].forEach(function(d){ $('igtDeck'+d).classList.remove('disabled'); });
}

function igtChoose(deck){
  if(!_IGT||!_IGT.active||!_IGT.waiting) return;
  _IGT.waiting=false;
  // Disable decks during feedback
  ['A','B','C','D'].forEach(function(d){ $('igtDeck'+d).classList.add('disabled'); });

  _IGT.trial++;
  var card = _IGT.decks[deck][_IGT.deckIdx[deck]++];
  _IGT.deckIdx[deck] = _IGT.deckIdx[deck] % _IGT.decks[deck].length;
  _IGT.deckPicks[deck]++;
  var net = card.win - card.loss;
  _IGT.balance += net;
  _IGT.log.push({trial:_IGT.trial,deck:deck,win:card.win,loss:card.loss,net:net,balance:_IGT.balance});
  _IGT.currentBlock.push({deck:deck,net:net});

  // Update UI
  $('igt-trial').textContent='Trial '+_IGT.trial+'/'+_IGT.maxTrials;
  $('igtProgressBar').style.width=(_IGT.trial/_IGT.maxTrials*100).toFixed(1)+'%';
  $('igtCount'+deck).textContent=Math.max(0,40-_IGT.deckPicks[deck]);
  var balFmt='$'+Math.abs(_IGT.balance).toLocaleString()+(_IGT.balance<0?' (debt)':'');
  $('igt-balance').textContent=balFmt;
  $('igt-balance').style.color=_IGT.balance>=0?'var(--gold)':'#e05c5c';

  // Feedback
  var fb=$('igtFeedback');
  fb.innerHTML='<span style="color:#81c784">+$'+card.win+'</span>'+
    (card.loss?'<span style="color:#e05c5c"> −$'+card.loss+'</span>':'')+
    '<span style="color:var(--dim)"> · net </span>'+
    '<span style="color:'+(net>=0?'#81c784':'#e05c5c')+'">'+
    (net>=0?'+':'')+net+'</span>';

  // Block tracking (20 trials per block)
  if(_IGT.currentBlock.length===20){
    var block=_IGT.currentBlock;
    var cd=block.filter(function(r){return r.deck==='C'||r.deck==='D';}).length;
    var ab=block.filter(function(r){return r.deck==='A'||r.deck==='B';}).length;
    _IGT.blockData.push({block:_IGT.blockNum+1,cd:cd,ab:ab,score:cd-ab});
    _IGT.blockNum++;
    _IGT.currentBlock=[];
    igtUpdateBlockScores();
  }

  setTimeout(function(){
    if(!_IGT||!_IGT.active) return;
    fb.innerHTML='';
    if(_IGT.trial>=_IGT.maxTrials){ igtEnd(); return; }
    ['A','B','C','D'].forEach(function(d){ $('igtDeck'+d).classList.remove('disabled'); });
    _IGT.waiting=true;
  }, 900);
}

function igtUpdateBlockScores(){
  var el=$('igtBlockScores'); el.innerHTML='';
  _IGT.blockData.forEach(function(b){
    var span=document.createElement('span');
    span.style.color=b.score>0?'var(--gold)':b.score<0?'#e05c5c':'var(--dim)';
    span.textContent='B'+b.block+':'+(b.score>0?'+':'')+b.score;
    el.appendChild(span);
  });
}

function igtEnd(){
  _IGT.active=false;
  $('igtStimPhase').style.display='none';
  $('igtProgressBar').style.width='100%';

  if(_IGT.isPractice){
    var ab=_IGT.deckPicks.A+_IGT.deckPicks.B;
    var cd=_IGT.deckPicks.C+_IGT.deckPicks.D;
    $('pcStats').innerHTML='C+D <span>'+cd+'</span> · A+B <span>'+ab+'</span>';
    hideAll();$('practiceComplete').style.display='flex';return;
  }
  window._igt_log=_IGT.log;$('exportBtn').disabled=false;

  var picks=_IGT.deckPicks;
  var totalScore=(picks.C+picks.D)-(picks.A+picks.B);
  $('igtMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+(totalScore>0?'+':'')+totalScore+'</div><div class="vm-lbl">IGT Score</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">$'+Math.abs(_IGT.balance).toLocaleString()+'</div><div class="vm-lbl">Final Balance</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+picks.A+'/'+picks.B+'</div><div class="vm-lbl">A / B (bad)</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+picks.C+'/'+picks.D+'</div><div class="vm-lbl">C / D (good)</div></div>';

  // Draw block chart
  var cvs=$('igtChart'); if(cvs){
    var ctx=cvs.getContext('2d');
    var W=380,H=100,cx=30,cy=H/2;
    ctx.fillStyle='#060d14';ctx.fillRect(0,0,W,H);
    ctx.strokeStyle='rgba(138,180,208,0.15)';ctx.lineWidth=0.5;
    ctx.beginPath();ctx.moveTo(cx,cy);ctx.lineTo(W-10,cy);ctx.stroke();
    ctx.fillStyle='rgba(138,180,208,0.4)';ctx.font='8px monospace';ctx.textAlign='center';
    ctx.fillText('0',cx-10,cy+3);
    var blocks=_IGT.blockData;if(!blocks.length) return;
    var maxAbs=Math.max.apply(null,blocks.map(function(b){return Math.abs(b.score);}));
    maxAbs=Math.max(maxAbs,4);
    var bw=(W-cx-10)/blocks.length;
    blocks.forEach(function(b,i){
      var barH=(Math.abs(b.score)/maxAbs)*(H/2-8);
      var x=cx+i*bw+bw*0.1,w=bw*0.8;
      var y=b.score>=0?cy-barH:cy;
      ctx.fillStyle=b.score>0?'rgba(212,180,86,0.7)':'rgba(224,92,92,0.7)';
      ctx.fillRect(x,y,w,barH);
      ctx.fillStyle='rgba(138,180,208,0.5)';ctx.font='8px monospace';ctx.textAlign='center';
      ctx.fillText('B'+(i+1),x+w/2,H-4);
    });
    ctx.strokeStyle='rgba(212,180,86,0.6)';ctx.lineWidth=1;
    ctx.beginPath();ctx.moveTo(cx,cy);
    blocks.forEach(function(b,i){
      ctx.lineTo(cx+i*bw+bw/2,(b.score>=0?cy-(b.score/maxAbs)*(H/2-8):cy+(-b.score/maxAbs)*(H/2-8)));
    });ctx.stroke();
  }
  $('igtResultsPhase').style.display='block';
  updateSidebar();
}

function igtExportCSV(){
  var log=window._igt_log;if(!log)return;
  var blob=new Blob(['trial,deck,win,loss,net,balance\n'+log.map(function(r){
    return[r.trial,r.deck,r.win,r.loss,r.net,r.balance].join(',');
  }).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='igt_'+Date.now()+'.csv';a.click();
}

// ══════════════════════════════════════════════════════════
// PRL — Probabilistic Reversal Learning (Cools et al., 2002)
// Two stimuli (identities), one "good" (rewarded ~80%), one "bad"
// (~20%). Side position randomized per trial. Contingencies reverse
// without warning at jittered points → bounded, ERP-friendly length.
// Feedback is the critical event (pairs with FRN / RewP).
// ══════════════════════════════════════════════════════════
var _PRL = null;
var PRL_STIM = [ {glyph:'✦', color:'#d4a520'}, {glyph:'❖', color:'#5b9fda'} ];  // two identities
var PRL_PREWARD = 0.80;     // reward prob for the good identity
var PRL_PREWARD_BAD = 0.20; // reward prob for the bad identity
var PRL_BIN = 5;            // learning-curve bin size (trials)

// Build jittered reversal points (trial numbers BEFORE which the good identity flips).
function _prlReversalPlan(total, isPractice){
  var pts=[], step=isPractice?7:16, jit=isPractice?1:2;
  var t=step + Math.round((Math.random()*2-1)*jit);
  while(t < total-7){ pts.push(t); t += step + Math.round((Math.random()*2-1)*jit); }
  return pts;
}

function startPRL(isPractice){
  var TOTAL = isPractice ? 14 : 80;
  _PRL = {
    active:true, isPractice:isPractice, trial:0, maxTrials:TOTAL,
    good: Math.random()<0.5?0:1,         // currently-good identity index
    points:0, log:[], waiting:true,
    prevStim:null, prevReward:null,      // for win-stay / lose-shift
    reversals:_prlReversalPlan(TOTAL,isPractice), reversalsDone:0,
    persevCount:0, postRevPending:false  // perseveration bookkeeping
  };
  hideAll();
  $('prlScreen').style.display='flex';
  $('prlPracticeBanner').style.display=isPractice?'block':'none';
  $('prlProgressBar').style.width='0%';
  $('prlStimPhase').style.display='flex';
  $('prlResultsPhase').style.display='none';
  $('prlFeedback').innerHTML='';
  $('prl-points').textContent='0 pts';
  $('prl-trial').textContent=tr('Trial')+' 0/'+TOTAL;
  try{ $('si-task').textContent='PRL'+(isPractice?' (PRAC)':''); }catch(e){}
  try{ $('exportBtn').disabled=true; }catch(e){}
  _prlNextTrial();
}

function _prlNextTrial(){
  if(!_PRL||!_PRL.active) return;
  // Reversal check: flip the good identity before this (1-based) trial if scheduled.
  var nextTrialNo=_PRL.trial+1;
  var reversedNow=false;
  if(_PRL.reversals.indexOf(nextTrialNo)>=0){
    _PRL.good = 1-_PRL.good;
    _PRL.reversalsDone++;
    reversedNow=true;
    _PRL.postRevPending=true;  // start counting perseverative errors
  }
  _PRL._reversedNow=reversedNow;
  // Randomize left/right position of the two identities each trial.
  var leftId = Math.random()<0.5?0:1;
  _PRL.curLeft=leftId; _PRL.curRight=1-leftId;
  $('prlGlyphL').textContent=PRL_STIM[leftId].glyph;  $('prlGlyphL').style.color=PRL_STIM[leftId].color;
  $('prlGlyphR').textContent=PRL_STIM[1-leftId].glyph;$('prlGlyphR').style.color=PRL_STIM[1-leftId].color;
  $('prlCardL').classList.remove('disabled','chosen');
  $('prlCardR').classList.remove('disabled','chosen');
  _PRL.tStart=(window.performance&&performance.now)?performance.now():Date.now();
  _PRL.waiting=true;
}

function prlChoose(side){
  if(!_PRL||!_PRL.active||!_PRL.waiting) return;
  _PRL.waiting=false;
  var now=(window.performance&&performance.now)?performance.now():Date.now();
  var rt=Math.round(now-_PRL.tStart);
  $('prlCardL').classList.add('disabled'); $('prlCardR').classList.add('disabled');
  $(side==='L'?'prlCardL':'prlCardR').classList.add('chosen');

  _PRL.trial++;
  var chosenId = side==='L'?_PRL.curLeft:_PRL.curRight;
  var correct = (chosenId===_PRL.good) ? 1 : 0;
  // Probabilistic feedback: good identity pays ~80%, bad ~20%.
  var pRew = correct ? PRL_PREWARD : PRL_PREWARD_BAD;
  var rewarded = (Math.random()<pRew) ? 1 : 0;
  _PRL.points += rewarded ? 10 : -5;

  // Perseveration: after a reversal, count consecutive choices of the now-bad
  // (previously-good) identity until the first choice of the new good one.
  if(_PRL.postRevPending){
    if(correct){ _PRL.postRevPending=false; }   // adapted — stop counting
    else { _PRL.persevCount++; }                 // still picking the old stimulus
  }

  // Win-stay / lose-shift relative to the previous trial.
  var stay = (_PRL.prevStim!=null && chosenId===_PRL.prevStim) ? 1 : 0;
  _PRL.log.push({
    trial:_PRL.trial, block:Math.floor((_PRL.trial-1)/PRL_BIN)+1,
    good:_PRL.good, leftStim:_PRL.curLeft, rightStim:_PRL.curRight,
    choice:side, chosen:chosenId, correct:correct, rewarded:rewarded,
    reversal:_PRL._reversedNow?1:0, rt:rt,
    prevRewarded:(_PRL.prevReward==null?'':_PRL.prevReward), stay:(_PRL.prevStim==null?'':stay)
  });
  _PRL.prevStim=chosenId; _PRL.prevReward=rewarded;

  // UI
  $('prl-trial').textContent=tr('Trial')+' '+_PRL.trial+'/'+_PRL.maxTrials;
  $('prl-points').textContent=_PRL.points+' pts';
  $('prl-points').style.color=_PRL.points>=0?'var(--gold)':'#e05c5c';
  $('prlProgressBar').style.width=(_PRL.trial/_PRL.maxTrials*100).toFixed(1)+'%';
  var fb=$('prlFeedback');
  fb.innerHTML = rewarded
    ? '<span style="color:#81c784">'+tr('✓ REWARD')+' &nbsp;+10</span>'
    : '<span style="color:#e05c5c">'+tr('✗ NO REWARD')+' &nbsp;−5</span>';

  setTimeout(function(){
    if(!_PRL||!_PRL.active) return;
    fb.innerHTML='';
    if(_PRL.trial>=_PRL.maxTrials){ prlEnd(); return; }
    _prlNextTrial();
  }, 950);
}

function prlKey(e){
  if(!_PRL||!_PRL.active||!_PRL.waiting) return;
  var k=(e.key||'').toLowerCase();
  if(k==='f'){ e.preventDefault(); prlChoose('L'); }
  else if(k==='j'){ e.preventDefault(); prlChoose('R'); }
}
document.addEventListener('keydown', prlKey);

function _prlMetrics(){
  var log=_PRL.log, n=log.length;
  var hits=log.filter(function(r){return r.correct===1;}).length;
  var acc = n? (hits/n*100):0;
  // win-stay / lose-shift over trials that have a defined previous trial
  var winN=0,winStay=0,loseN=0,loseShift=0;
  for(var i=1;i<n;i++){
    var prevRew=log[i-1].rewarded, sameChoice=(log[i].chosen===log[i-1].chosen);
    if(prevRew===1){ winN++; if(sameChoice) winStay++; }
    else { loseN++; if(!sameChoice) loseShift++; }
  }
  return {
    n:n, hits:hits, acc:acc,
    reversals:_PRL.reversalsDone,
    persev:_PRL.persevCount,
    winStay: winN? (winStay/winN*100):0,
    loseShift: loseN? (loseShift/loseN*100):0,
    points:_PRL.points
  };
}

function prlEnd(){
  _PRL.active=false;
  $('prlStimPhase').style.display='none';
  $('prlProgressBar').style.width='100%';
  var m=_prlMetrics();

  if(_PRL.isPractice){
    $('pcStats').innerHTML=tr('ACCURACY')+' <span>'+m.acc.toFixed(0)+'%</span> · '+tr('REVERSALS')+' <span>'+m.reversals+'</span>';
    hideAll(); $('practiceComplete').style.display='flex'; return;
  }

  window._prl_log=_PRL.log; try{ $('exportBtn').disabled=false; }catch(e){}
  $('prlMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+m.acc.toFixed(0)+'%</div><div class="vm-lbl">'+tr('Accuracy')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+m.reversals+'</div><div class="vm-lbl">'+tr('Reversals')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+m.persev+'</div><div class="vm-lbl">'+tr('Persev. errors')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+m.winStay.toFixed(0)+'%</div><div class="vm-lbl">'+tr('Win-stay')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+m.loseShift.toFixed(0)+'%</div><div class="vm-lbl">'+tr('Lose-shift')+'</div></div>';

  _prlDrawChart();
  $('prlResultsPhase').style.display='block';
  try{
    cognosRecordResult('PRL','PRL',{
      score:m.acc.toFixed(0)+'% acc, '+m.reversals+' rev, persev '+m.persev,
      accuracy:m.acc.toFixed(1), reversals:m.reversals, perseverative:m.persev,
      winStay:m.winStay.toFixed(1), loseShift:m.loseShift.toFixed(1), points:m.points
    }, _PRL.log);
    updateSidebar();
  }catch(e){}
}

function _prlDrawChart(){
  var cvs=$('prlChart'); if(!cvs) return;
  var ctx=cvs.getContext('2d'); var W=380,H=110,padL=26,padB=16,padT=8;
  ctx.fillStyle='#060d14'; ctx.fillRect(0,0,W,H);
  var log=_PRL.log; if(!log.length) return;
  // accuracy per bin
  var bins=[]; for(var i=0;i<log.length;i+=PRL_BIN){
    var seg=log.slice(i,i+PRL_BIN);
    var h=seg.filter(function(r){return r.correct===1;}).length;
    bins.push(h/seg.length);
  }
  var plotW=W-padL-8, plotH=H-padB-padT;
  // axes / 50% & 100% guides
  ctx.strokeStyle='rgba(138,180,208,0.15)'; ctx.lineWidth=0.5; ctx.fillStyle='rgba(138,180,208,0.4)'; ctx.font='8px monospace'; ctx.textAlign='right';
  [0,0.5,1].forEach(function(v){ var y=padT+plotH*(1-v); ctx.beginPath();ctx.moveTo(padL,y);ctx.lineTo(W-8,y);ctx.stroke(); ctx.fillText((v*100).toFixed(0),padL-3,y+3); });
  // reversal markers (dashed vertical lines at bin boundary nearest each reversal trial)
  ctx.strokeStyle='rgba(224,92,92,0.55)'; ctx.setLineDash([3,3]); ctx.lineWidth=1;
  _PRL.reversals.forEach(function(rt){
    var frac=(rt-1)/log.length; var x=padL+plotW*frac;
    ctx.beginPath();ctx.moveTo(x,padT);ctx.lineTo(x,padT+plotH);ctx.stroke();
  });
  ctx.setLineDash([]);
  // accuracy line
  ctx.strokeStyle='rgba(212,180,86,0.9)'; ctx.lineWidth=1.5; ctx.beginPath();
  bins.forEach(function(v,i){
    var x=padL + plotW*((i+0.5)/bins.length);
    var y=padT+plotH*(1-v);
    if(i===0) ctx.moveTo(x,y); else ctx.lineTo(x,y);
  });
  ctx.stroke();
  ctx.fillStyle='rgba(212,180,86,0.9)';
  bins.forEach(function(v,i){ var x=padL+plotW*((i+0.5)/bins.length), y=padT+plotH*(1-v); ctx.beginPath();ctx.arc(x,y,1.8,0,6.283);ctx.fill(); });
}

function prlExportCSV(){
  var log=window._prl_log; if(!log) return;
  var cols='trial,block,good_stim,left_stim,right_stim,choice,chosen_stim,correct,rewarded,reversal,rt_ms,prev_rewarded,stay';
  var body=log.map(function(r){
    return [r.trial,r.block,r.good,r.leftStim,r.rightStim,r.choice,r.chosen,r.correct,r.rewarded,r.reversal,r.rt,r.prevRewarded,r.stay].join(',');
  }).join('\n');
  var blob=new Blob([cols+'\n'+body],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='prl_'+Date.now()+'.csv';a.click();
}
try{ window.startPRL=startPRL; window.prlChoose=prlChoose; window.prlExportCSV=prlExportCSV; }catch(e){}

// ══════════════════════════════════════════════════════════
// DD — Delay Discounting (Myerson, Green & Warusawitharana, 2001)
// Adjusting-amount staircase: smaller-sooner vs larger-later ($1000).
// Bisection over DD_NCHOICES converges to the indifference point at
// each delay → hyperbolic k (V=A/(1+kD)) and model-free AuC.
// ══════════════════════════════════════════════════════════
var _DD = null;
var DD_LL = 1000;                              // larger-later amount ($)
var DD_NCHOICES = 6;                           // staircase steps/delay → resolution ≈ $15.6
var DD_DELAYS_PRACTICE = [7, 90, 365];
var DD_DELAYS_MAIN = [1, 7, 30, 180, 365, 1095, 3650]; // 1d,1wk,1mo,6mo,1yr,3yr,10yr

function ddDelayLabel(days){
  var map={1:'1 day',7:'1 week',14:'2 weeks',30:'1 month',90:'3 months',180:'6 months',365:'1 year',730:'2 years',1095:'3 years',1825:'5 years',3650:'10 years'};
  if(map[days]) return tr(map[days]);
  if(days<7) return days+' '+tr('days');
  if(days<30) return Math.round(days/7)+' '+tr('weeks');
  if(days<365) return Math.round(days/30)+' '+tr('months');
  return Math.round(days/365)+' '+tr('years');
}

function startDD(isPractice){
  var delays = (isPractice?DD_DELAYS_PRACTICE:DD_DELAYS_MAIN).slice();
  _DD = {
    active:true, isPractice:isPractice, delays:delays, di:0,
    ss:DD_LL/2, step:DD_LL/4, choiceInDelay:0,
    indiff:[], log:[], waiting:true, ssSide:'L', tStart:0
  };
  hideAll();
  $('ddScreen').style.display='flex';
  $('ddPracticeBanner').style.display=isPractice?'block':'none';
  $('ddStimPhase').style.display='flex';
  $('ddResultsPhase').style.display='none';
  $('ddProgressBar').style.width='0%';
  try{ $('si-task').textContent='DD'+(isPractice?' (PRAC)':''); }catch(e){}
  try{ $('exportBtn').disabled=true; }catch(e){}
  _ddRender();
}

function _ddRender(){
  if(!_DD||!_DD.active) return;
  var d=_DD.delays[_DD.di];
  _DD.ssSide = Math.random()<0.5?'L':'R';
  var ssAmt='$'+Math.round(_DD.ss).toLocaleString(), ssWhen=tr('now');
  var llAmt='$'+DD_LL.toLocaleString(), llWhen='in '+ddDelayLabel(d);
  var L=_DD.ssSide==='L';
  $('ddAmtL').textContent  = L?ssAmt:llAmt;  $('ddWhenL').textContent = L?ssWhen:llWhen;
  $('ddAmtR').textContent  = L?llAmt:ssAmt;  $('ddWhenR').textContent = L?llWhen:ssWhen;
  $('ddOptL').classList.remove('disabled'); $('ddOptR').classList.remove('disabled');
  $('dd-delay').textContent=tr('Delay')+' '+(_DD.di+1)+'/'+_DD.delays.length+' · '+ddDelayLabel(d);
  _DD.tStart=(window.performance&&performance.now)?performance.now():Date.now();
  _DD.waiting=true;
}

function ddChoose(side){
  if(!_DD||!_DD.active||!_DD.waiting) return;
  _DD.waiting=false;
  var now=(window.performance&&performance.now)?performance.now():Date.now();
  var rt=Math.round(now-_DD.tStart);
  $('ddOptL').classList.add('disabled'); $('ddOptR').classList.add('disabled');
  var d=_DD.delays[_DD.di];
  var choseSS = (side===_DD.ssSide);
  _DD.log.push({
    delay_days:d, choice_index:_DD.choiceInDelay+1,
    ss_amount:Math.round(_DD.ss*100)/100, ll_amount:DD_LL,
    chose: choseSS?'SS':'LL', ss_side:_DD.ssSide, rt:rt
  });
  // Adjusting-amount staircase: prefer immediate → lower the immediate offer; prefer
  // delayed → raise it. Step halves each choice (bisection toward indifference).
  if(choseSS) _DD.ss -= _DD.step; else _DD.ss += _DD.step;
  _DD.ss = Math.max(0, Math.min(DD_LL, _DD.ss));
  _DD.step /= 2;
  _DD.choiceInDelay++;

  var total=_DD.delays.length*DD_NCHOICES, done=_DD.di*DD_NCHOICES+_DD.choiceInDelay;
  $('ddProgressBar').style.width=(done/total*100).toFixed(1)+'%';

  if(_DD.choiceInDelay>=DD_NCHOICES){
    // Converged: indifference point = current adjusted immediate amount.
    _DD.indiff.push({delay:d, amount:_DD.ss, sv:_DD.ss/DD_LL});
    _DD.di++; _DD.choiceInDelay=0; _DD.ss=DD_LL/2; _DD.step=DD_LL/4;
    if(_DD.di>=_DD.delays.length){ ddEnd(); return; }
  }
  setTimeout(function(){
    if(!_DD||!_DD.active) return;
    _ddRender();
  }, 260);
}

function ddKey(e){
  if(!_DD||!_DD.active||!_DD.waiting) return;
  var k=(e.key||'').toLowerCase();
  if(k==='f'){ e.preventDefault(); ddChoose('L'); }
  else if(k==='j'){ e.preventDefault(); ddChoose('R'); }
}
document.addEventListener('keydown', ddKey);

function _ddFit(){
  var pts=_DD.indiff.slice().sort(function(a,b){return a.delay-b.delay;});
  // Hyperbolic V=1/(1+kD): linearize y=1/sv-1=kD → through-origin LSQ k=Σ(D·y)/Σ(D²).
  var sxx=0,sxy=0;
  pts.forEach(function(p){ var sv=Math.max(1e-4,Math.min(1,p.sv)); var y=1/sv-1; sxx+=p.delay*p.delay; sxy+=p.delay*y; });
  var k = sxx>0 ? sxy/sxx : 0;
  // AuC (Myerson 2001): delay normalized to [0,1] by max delay, SV in [0,1], trapezoids.
  var auc=0, Dmax=pts.length?pts[pts.length-1].delay:1;
  for(var i=0;i<pts.length-1;i++){
    var x1=pts[i].delay/Dmax, x2=pts[i+1].delay/Dmax;
    var y1=Math.max(0,Math.min(1,pts[i].sv)), y2=Math.max(0,Math.min(1,pts[i+1].sv));
    auc += (x2-x1)*(y1+y2)/2;
  }
  var ssPicks=_DD.log.filter(function(r){return r.chose==='SS';}).length;
  return { k:k, lnk:(k>0?Math.log(k):null), auc:auc,
           ssPct:(_DD.log.length?ssPicks/_DD.log.length*100:0), pts:pts };
}

function ddEnd(){
  _DD.active=false;
  $('ddStimPhase').style.display='none';
  $('ddProgressBar').style.width='100%';
  var f=_ddFit();

  if(_DD.isPractice){
    $('pcStats').innerHTML=tr('AuC')+' <span>'+f.auc.toFixed(2)+'</span> · '+tr('IMMEDIATE')+' <span>'+f.ssPct.toFixed(0)+'%</span>';
    hideAll(); $('practiceComplete').style.display='flex'; return;
  }

  window._dd_log=_DD.log; try{ $('exportBtn').disabled=false; }catch(e){}
  var kStr = f.k>0 ? f.k.toExponential(2) : '0';
  var lnkStr = (f.lnk==null) ? '—' : f.lnk.toFixed(2);
  $('ddMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+f.auc.toFixed(2)+'</div><div class="vm-lbl">'+tr('AuC (0–1)')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+kStr+'</div><div class="vm-lbl">'+tr('Hyperbolic k')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+lnkStr+'</div><div class="vm-lbl">'+tr('ln(k)')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+f.ssPct.toFixed(0)+'%</div><div class="vm-lbl">'+tr('Immediate choices')+'</div></div>';

  _ddDrawChart(f);
  $('ddResultsPhase').style.display='block';
  try{
    cognosRecordResult('DD','DD',{
      score:'AuC '+f.auc.toFixed(2)+', k='+kStr+', '+f.ssPct.toFixed(0)+'% immediate',
      auc:f.auc.toFixed(3), k:kStr, lnk:lnkStr, immediatePct:f.ssPct.toFixed(1)
    }, _DD.log);
    updateSidebar();
  }catch(e){}
}

function _ddDrawChart(f){
  var cvs=$('ddChart'); if(!cvs) return;
  var ctx=cvs.getContext('2d'); var W=420,H=150,padL=30,padB=26,padT=10,padR=10;
  ctx.fillStyle='#060d14'; ctx.fillRect(0,0,W,H);
  var pts=f.pts; if(!pts.length) return;
  var plotW=W-padL-padR, plotH=H-padB-padT;
  // y guides 0 / 0.5 / 1
  ctx.font='8px monospace'; ctx.textAlign='right';
  [0,0.5,1].forEach(function(v){
    var y=padT+plotH*(1-v);
    ctx.strokeStyle='rgba(138,180,208,0.15)'; ctx.lineWidth=0.5;
    ctx.beginPath();ctx.moveTo(padL,y);ctx.lineTo(W-padR,y);ctx.stroke();
    ctx.fillStyle='rgba(138,180,208,0.4)'; ctx.fillText(v.toFixed(1),padL-3,y+3);
  });
  // x: evenly-spaced categorical delays
  var n=pts.length;
  function xAt(i){ return padL + (n===1?plotW/2:plotW*(i/(n-1))); }
  ctx.fillStyle='rgba(138,180,208,0.45)'; ctx.textAlign='center';
  pts.forEach(function(p,i){ ctx.fillText(ddDelayLabel(p.delay).replace(' ','\u00A0'), xAt(i), H-padB+12); });
  // hyperbolic fit curve (dashed) sampled at same x positions
  ctx.strokeStyle='rgba(138,180,208,0.55)'; ctx.setLineDash([4,3]); ctx.lineWidth=1; ctx.beginPath();
  pts.forEach(function(p,i){
    var sv=1/(1+f.k*p.delay);
    var x=xAt(i), y=padT+plotH*(1-Math.max(0,Math.min(1,sv)));
    if(i===0) ctx.moveTo(x,y); else ctx.lineTo(x,y);
  });
  ctx.stroke(); ctx.setLineDash([]);
  // measured indifference points + connecting line (gold)
  ctx.strokeStyle='rgba(212,180,86,0.9)'; ctx.lineWidth=1.5; ctx.beginPath();
  pts.forEach(function(p,i){ var x=xAt(i), y=padT+plotH*(1-Math.max(0,Math.min(1,p.sv))); if(i===0)ctx.moveTo(x,y); else ctx.lineTo(x,y); });
  ctx.stroke();
  ctx.fillStyle='rgba(212,180,86,0.95)';
  pts.forEach(function(p,i){ var x=xAt(i), y=padT+plotH*(1-Math.max(0,Math.min(1,p.sv))); ctx.beginPath();ctx.arc(x,y,2.4,0,6.283);ctx.fill(); });
}

function ddExportCSV(){
  var log=window._dd_log; if(!log) return;
  var cols='delay_days,delay_label,choice_index,ss_amount,ll_amount,chose,ss_side,rt_ms';
  var body=log.map(function(r){
    return [r.delay_days, ddDelayLabel(r.delay_days).replace(/,/g,''), r.choice_index, r.ss_amount, r.ll_amount, r.chose, r.ss_side, r.rt].join(',');
  }).join('\n');
  // append per-delay indifference summary
  var f=_ddFit();
  var summ='\n\n# indifference points (subjective value of $'+DD_LL+')\ndelay_days,delay_label,indiff_amount,subjective_value\n'+
    f.pts.map(function(p){return [p.delay, ddDelayLabel(p.delay).replace(/,/g,''), Math.round(p.amount*100)/100, (p.sv).toFixed(4)].join(',');}).join('\n')+
    '\n# k='+(f.k>0?f.k.toExponential(4):'0')+'  AuC='+f.auc.toFixed(4)+'  immediate%='+f.ssPct.toFixed(1);
  var blob=new Blob([cols+'\n'+body+summ],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='dd_'+Date.now()+'.csv';a.click();
}
try{ window.startDD=startDD; window.ddChoose=ddChoose; window.ddExportCSV=ddExportCSV; }catch(e){}

// ══════════════════════════════════════════════════════════
// SRTT — Serial Reaction Time Task (Nissen & Bullemer, 1987)
// Four positions → keys D F J K. Lit positions follow a hidden
// repeating 10-item sequence; one late block is random. The RT
// rise from sequence→random indexes implicit procedural learning.
// Pairs with motor-preparation ERPs (BP / LRP / CNV).
// ══════════════════════════════════════════════════════════
var _SRTT = null;
var SRTT_SEQ = [0,2,1,3,2,0,3,1,2,1];   // hidden repeating 10-item sequence
var SRTT_KEYS = ['d','f','j','k'];      // position → key
var SRTT_RSI = 320;                     // response-to-stimulus interval (ms)
// Block plans: type 's' = sequence, 'r' = random. Random block reveals learning.
var SRTT_BLOCKS_MAIN = ['s','s','s','r','s'];
var SRTT_BLOCKLEN_MAIN = 24;            // 24 = ~2.4 reps of the sequence
var SRTT_BLOCKLEN_PRACTICE = 16;        // practice = single random block (learn the mapping)

function _srttRandTarget(prev){ var t; do{ t=Math.floor(Math.random()*4); }while(t===prev); return t; }

function startSRTT(isPractice){
  var blocks = isPractice ? ['r'] : SRTT_BLOCKS_MAIN.slice();
  var blockLen = isPractice ? SRTT_BLOCKLEN_PRACTICE : SRTT_BLOCKLEN_MAIN;
  _SRTT = {
    active:true, isPractice:isPractice, blocks:blocks, blockLen:blockLen,
    bi:0, ti:0, seqPos:0, target:0, prev:-1,
    cueOnset:0, errs:0, waiting:false, log:[], _to:null
  };
  hideAll();
  $('srttScreen').style.display='flex';
  $('srttPracticeBanner').style.display=isPractice?'block':'none';
  $('srttStimPhase').style.display='flex';
  $('srttResultsPhase').style.display='none';
  $('srttProgressBar').style.width='0%';
  try{ $('si-task').textContent='SRTT'+(isPractice?' (PRAC)':''); }catch(e){}
  try{ $('exportBtn').disabled=true; }catch(e){}
  _srttClearBoxes();
  _srttNextTrial();
}

function _srttClearBoxes(){
  for(var i=0;i<4;i++){ var b=$('srttBox'+i); if(b) b.className='srtt-box'; }
}

function _srttNextTrial(){
  if(!_SRTT||!_SRTT.active) return;
  // Block bookkeeping
  if(_SRTT.ti>=_SRTT.blockLen){
    _SRTT.bi++; _SRTT.ti=0; _SRTT.seqPos=0;
    if(_SRTT.bi>=_SRTT.blocks.length){ srttEnd(); return; }
  }
  var btype=_SRTT.blocks[_SRTT.bi];
  var tgt;
  if(btype==='s'){ tgt=SRTT_SEQ[_SRTT.seqPos % SRTT_SEQ.length]; _SRTT.seqPos++; }
  else { tgt=_srttRandTarget(_SRTT.prev); }
  _SRTT.target=tgt; _SRTT.prev=tgt;
  _srttClearBoxes();
  var box=$('srttBox'+tgt); if(box) box.classList.add('lit');
  $('srtt-block').textContent=tr('Block')+' '+(_SRTT.bi+1)+'/'+_SRTT.blocks.length;
  $('srtt-trial').textContent=tr('Trial')+' '+(_SRTT.ti+1)+'/'+_SRTT.blockLen;
  var totalTrials=_SRTT.blocks.length*_SRTT.blockLen;
  var doneTrials=_SRTT.bi*_SRTT.blockLen+_SRTT.ti;
  $('srttProgressBar').style.width=(doneTrials/totalTrials*100).toFixed(1)+'%';
  _SRTT.errs=0;
  _SRTT.cueOnset=(window.performance&&performance.now)?performance.now():Date.now();
  _SRTT.waiting=true;
}

function srttRespond(box){
  if(!_SRTT||!_SRTT.active||!_SRTT.waiting) return;
  if(box!==_SRTT.target){
    // wrong key — flash error, keep waiting (RT measured to first correct press)
    _SRTT.errs++;
    var wb=$('srttBox'+box); if(wb){ wb.classList.add('err'); setTimeout(function(){ if(wb) wb.classList.remove('err'); },140); }
    return;
  }
  _SRTT.waiting=false;
  var now=(window.performance&&performance.now)?performance.now():Date.now();
  var rt=Math.round(now-_SRTT.cueOnset);
  var btype=_SRTT.blocks[_SRTT.bi];
  _SRTT.log.push({
    block:_SRTT.bi+1, block_type:btype==='s'?'sequence':'random',
    trial_in_block:_SRTT.ti+1, target:_SRTT.target, rt:rt, errors:_SRTT.errs
  });
  var tb=$('srttBox'+_SRTT.target); if(tb){ tb.classList.remove('lit'); tb.classList.add('ok'); }
  _SRTT.ti++;
  _SRTT._to=setTimeout(function(){
    if(!_SRTT||!_SRTT.active) return;
    _srttNextTrial();
  }, SRTT_RSI);
}

function srttKey(e){
  if(!_SRTT||!_SRTT.active||!_SRTT.waiting) return;
  var k=(e.key||'').toLowerCase();
  var idx=SRTT_KEYS.indexOf(k);
  if(idx>=0){ e.preventDefault(); srttRespond(idx); }
}
document.addEventListener('keydown', srttKey);

function _srttMetrics(){
  var log=_SRTT.log;
  // mean RT per block (correct trials = all logged, RT is to correct press)
  var nb=_SRTT.blocks.length, blockRT=[], blockType=_SRTT.blocks.slice();
  for(var b=1;b<=nb;b++){
    var seg=log.filter(function(r){return r.block===b;});
    var mean= seg.length? seg.reduce(function(s,r){return s+r.rt;},0)/seg.length : 0;
    blockRT.push(mean);
  }
  // sequence-learning effect: RT(random block) − mean(adjacent sequence blocks)
  var ri=blockType.indexOf('r');
  var learnEffect=null, randRT=null, neighborRT=null;
  if(ri>=0){
    randRT=blockRT[ri];
    var neigh=[]; if(ri-1>=0 && blockType[ri-1]==='s') neigh.push(blockRT[ri-1]);
    if(ri+1<nb && blockType[ri+1]==='s') neigh.push(blockRT[ri+1]);
    if(neigh.length){ neighborRT=neigh.reduce(function(a,c){return a+c;},0)/neigh.length; learnEffect=randRT-neighborRT; }
  }
  // overall improvement: first sequence block − last sequence block
  var seqIdx=[]; blockType.forEach(function(t,i){ if(t==='s') seqIdx.push(i); });
  var improvement = (seqIdx.length>=2) ? (blockRT[seqIdx[0]]-blockRT[seqIdx[seqIdx.length-1]]) : null;
  var totalErr=log.reduce(function(s,r){return s+r.errors;},0);
  var meanRT= log.length? log.reduce(function(s,r){return s+r.rt;},0)/log.length : 0;
  return { blockRT:blockRT, blockType:blockType, learnEffect:learnEffect, randRT:randRT,
           neighborRT:neighborRT, improvement:improvement, totalErr:totalErr,
           errRate: log.length? totalErr/(log.length+totalErr)*100:0, meanRT:meanRT };
}

function srttEnd(){
  _SRTT.active=false;
  $('srttStimPhase').style.display='none';
  $('srttProgressBar').style.width='100%';
  _srttClearBoxes();
  var m=_srttMetrics();

  if(_SRTT.isPractice){
    $('pcStats').innerHTML=tr('MEAN RT')+' <span>'+Math.round(m.meanRT)+' ms</span> · '+tr('ERRORS')+' <span>'+m.totalErr+'</span>';
    hideAll(); $('practiceComplete').style.display='flex'; return;
  }

  window._srtt_log=_SRTT.log; try{ $('exportBtn').disabled=false; }catch(e){}
  var leStr = (m.learnEffect==null) ? '—' : ((m.learnEffect>=0?'+':'')+Math.round(m.learnEffect)+' ms');
  var imStr = (m.improvement==null) ? '—' : ((m.improvement>=0?'+':'')+Math.round(m.improvement)+' ms');
  $('srttMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+leStr+'</div><div class="vm-lbl">'+tr('Seq-learning (rand−seq)')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+imStr+'</div><div class="vm-lbl">'+tr('RT improvement')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+Math.round(m.meanRT)+'</div><div class="vm-lbl">'+tr('Mean RT (ms)')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+m.errRate.toFixed(1)+'%</div><div class="vm-lbl">'+tr('Error rate')+'</div></div>';

  _srttDrawChart(m);
  $('srttResultsPhase').style.display='block';
  try{
    cognosRecordResult('SRTT','SRTT',{
      score:'learn '+leStr+', meanRT '+Math.round(m.meanRT)+'ms, err '+m.errRate.toFixed(1)+'%',
      learningEffectMs:(m.learnEffect==null?'':Math.round(m.learnEffect)),
      improvementMs:(m.improvement==null?'':Math.round(m.improvement)),
      meanRT:Math.round(m.meanRT), errorRate:m.errRate.toFixed(1)
    }, _SRTT.log);
    updateSidebar();
  }catch(e){}
}

function _srttDrawChart(m){
  var cvs=$('srttChart'); if(!cvs) return;
  var ctx=cvs.getContext('2d'); var W=440,H=140,padL=34,padB=22,padT=12,padR=10;
  ctx.fillStyle='#060d14'; ctx.fillRect(0,0,W,H);
  var rts=m.blockRT, n=rts.length; if(!n) return;
  var maxRT=Math.max.apply(null,rts.concat([1])); maxRT=Math.ceil(maxRT/100)*100||100;
  var plotW=W-padL-padR, plotH=H-padB-padT;
  ctx.font='8px monospace'; ctx.textAlign='right'; ctx.fillStyle='rgba(138,180,208,0.4)';
  [0,0.5,1].forEach(function(v){
    var y=padT+plotH*(1-v);
    ctx.strokeStyle='rgba(138,180,208,0.15)'; ctx.lineWidth=0.5;
    ctx.beginPath();ctx.moveTo(padL,y);ctx.lineTo(W-padR,y);ctx.stroke();
    ctx.fillText(Math.round(maxRT*v),padL-3,y+3);
  });
  var bw=plotW/n;
  for(var i=0;i<n;i++){
    var barH=(rts[i]/maxRT)*plotH;
    var x=padL+i*bw+bw*0.18, w=bw*0.64, y=padT+plotH-barH;
    ctx.fillStyle = (m.blockType[i]==='r') ? 'rgba(224,92,92,0.8)' : 'rgba(212,180,86,0.8)';
    ctx.fillRect(x,y,w,barH);
    ctx.fillStyle='rgba(138,180,208,0.5)'; ctx.textAlign='center';
    ctx.fillText('B'+(i+1)+(m.blockType[i]==='r'?'(R)':''), x+w/2, H-padB+12);
    ctx.fillStyle='rgba(230,235,240,0.7)'; ctx.fillText(Math.round(rts[i]), x+w/2, y-3);
  }
}

function srttExportCSV(){
  var log=window._srtt_log; if(!log) return;
  var cols='block,block_type,trial_in_block,target_box,rt_ms,errors';
  var body=log.map(function(r){ return [r.block,r.block_type,r.trial_in_block,r.target,r.rt,r.errors].join(','); }).join('\n');
  var blob=new Blob([cols+'\n'+body],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='srtt_'+Date.now()+'.csv';a.click();
}
try{ window.startSRTT=startSRTT; window.srttRespond=srttRespond; window.srttExportCSV=srttExportCSV; }catch(e){}

// ══════════════════════════════════════════════════════════
// BART — Balloon Analogue Risk Task (Lejuez et al., 2002)
// Each pump adds $0.05 to a temporary bank but the balloon may
// burst (explosion point ~Uniform[1..ARRAY]); bank to keep it.
// Adjusted average pumps (non-burst balloons) indexes risk-taking.
// Each pump/outcome is a reward-monitoring event (FRN/RewP/P300).
// ══════════════════════════════════════════════════════════
var _BART = null;
var BART_ARRAY = 32;          // explosion point uniform in 1..ARRAY (mean ~16 pumps)
var BART_REWARD = 0.05;       // $ per pump
var BART_NBALLOONS_MAIN = 20;
var BART_NBALLOONS_PRACTICE = 3;
var BART_MAX_PX = 200;        // visual cap

function startBART(isPractice){
  _BART = {
    active:true, isPractice:isPractice,
    nBalloons: isPractice?BART_NBALLOONS_PRACTICE:BART_NBALLOONS_MAIN,
    bi:0, pumps:0, explodePt:0, temp:0, total:0,
    waiting:false, log:[], _to:null
  };
  hideAll();
  $('bartScreen').style.display='flex';
  $('bartPracticeBanner').style.display=isPractice?'block':'none';
  $('bartStimPhase').style.display='flex';
  $('bartResultsPhase').style.display='none';
  $('bartProgressBar').style.width='0%';
  $('bart-total').textContent='$0.00 '+tr('banked');
  $('bartFeedback').innerHTML='';
  try{ $('si-task').textContent='BART'+(isPractice?' (PRAC)':''); }catch(e){}
  try{ $('exportBtn').disabled=true; }catch(e){}
  _bartNewBalloon();
}

function _bartSetBalloonSize(pumps){
  var el=$('bartBalloon'); if(!el) return;
  var px=Math.min(BART_MAX_PX, 46 + pumps*7);
  el.style.width=px+'px'; el.style.height=px+'px';
  // colour shifts gold → red as risk grows
  var frac=Math.min(1, pumps/BART_ARRAY);
  var r=Math.round(212+(224-212)*frac), g=Math.round(165+(92-165)*frac), b=Math.round(32+(92-32)*frac);
  el.style.background='radial-gradient(circle at 38% 32%, rgba('+Math.min(255,r+30)+','+Math.min(255,g+40)+','+Math.min(255,b+30)+',1), rgb('+r+','+g+','+b+') 60%, rgb('+Math.round(r*0.85)+','+Math.round(g*0.8)+','+Math.round(b*0.8)+'))';
}

function _bartNewBalloon(){
  if(!_BART||!_BART.active) return;
  if(_BART.bi>=_BART.nBalloons){ bartEnd(); return; }
  _BART.pumps=0; _BART.temp=0;
  _BART.explodePt = 1 + Math.floor(Math.random()*BART_ARRAY);
  var el=$('bartBalloon'); if(el){ el.classList.remove('popped'); el.textContent=''; el.style.fontSize=''; }
  _bartSetBalloonSize(0);
  $('bart-balloon').textContent=tr('Balloon')+' '+(_BART.bi+1)+'/'+_BART.nBalloons;
  $('bartTemp').textContent='$0.00 '+tr('in this balloon')+' · 0 '+tr('pumps');
  $('bart-total').textContent='$'+_BART.total.toFixed(2)+' '+tr('banked');
  $('bartProgressBar').style.width=(_BART.bi/_BART.nBalloons*100).toFixed(1)+'%';
  $('bartPumpBtn').disabled=false; $('bartBankBtn').disabled=false;
  _BART.waiting=true;
}

function bartPump(){
  if(!_BART||!_BART.active||!_BART.waiting) return;
  _BART.pumps++;
  if(_BART.pumps>=_BART.explodePt){
    // burst
    _BART.waiting=false;
    $('bartPumpBtn').disabled=true; $('bartBankBtn').disabled=true;
    _BART.log.push({balloon:_BART.bi+1, pumps:_BART.pumps, exploded:1, earned:0, explosion_point:_BART.explodePt});
    var el=$('bartBalloon'); if(el){ el.classList.add('popped'); el.style.width='80px'; el.style.height='80px'; el.style.fontSize='3.4rem'; el.textContent='💥'; }
    $('bartTemp').textContent='';
    $('bartFeedback').innerHTML='<span style="color:#e05c5c">'+tr('BURST! — lost this balloon ($0.00)')+'</span>';
    _BART._to=setTimeout(function(){ if(!_BART||!_BART.active)return; _BART.bi++; $('bartFeedback').innerHTML=''; _bartNewBalloon(); }, 850);
    return;
  }
  _BART.temp=_BART.pumps*BART_REWARD;
  _bartSetBalloonSize(_BART.pumps);
  $('bartTemp').textContent='$'+_BART.temp.toFixed(2)+' '+tr('in this balloon')+' · '+_BART.pumps+' '+(_BART.pumps===1?tr('pump'):tr('pumps'));
}

function bartCollect(){
  if(!_BART||!_BART.active||!_BART.waiting) return;
  _BART.waiting=false;
  $('bartPumpBtn').disabled=true; $('bartBankBtn').disabled=true;
  _BART.total += _BART.temp;
  _BART.log.push({balloon:_BART.bi+1, pumps:_BART.pumps, exploded:0, earned:Math.round(_BART.temp*100)/100, explosion_point:_BART.explodePt});
  $('bart-total').textContent='$'+_BART.total.toFixed(2)+' '+tr('banked');
  $('bartFeedback').innerHTML='<span style="color:#81c784">'+tr('Banked')+' $'+_BART.temp.toFixed(2)+'</span>';
  _BART._to=setTimeout(function(){ if(!_BART||!_BART.active)return; _BART.bi++; $('bartFeedback').innerHTML=''; _bartNewBalloon(); }, 650);
}

function bartKey(e){
  if(!_BART||!_BART.active||!_BART.waiting) return;
  var k=(e.key||'').toLowerCase();
  if(k==='f'||k===' '||k==='spacebar'){ e.preventDefault(); bartPump(); }
  else if(k==='j'||k==='enter'){ e.preventDefault(); bartCollect(); }
}
document.addEventListener('keydown', bartKey);

function _bartMetrics(){
  var log=_BART.log;
  var banked=log.filter(function(r){return r.exploded===0;});
  var burst=log.filter(function(r){return r.exploded===1;});
  // Adjusted average pumps = mean pumps on non-exploded balloons (standard BART score)
  var adj = banked.length ? banked.reduce(function(s,r){return s+r.pumps;},0)/banked.length : 0;
  var avgAll = log.length ? log.reduce(function(s,r){return s+r.pumps;},0)/log.length : 0;
  var total = log.reduce(function(s,r){return s+r.earned;},0);
  return { adj:adj, avgAll:avgAll, explosions:burst.length, total:total, n:log.length };
}

function bartEnd(){
  _BART.active=false;
  $('bartStimPhase').style.display='none';
  $('bartProgressBar').style.width='100%';
  var m=_bartMetrics();

  if(_BART.isPractice){
    $('pcStats').innerHTML=tr('ADJ PUMPS')+' <span>'+m.adj.toFixed(1)+'</span> · '+tr('BANKED')+' <span>$'+m.total.toFixed(2)+'</span>';
    hideAll(); $('practiceComplete').style.display='flex'; return;
  }

  window._bart_log=_BART.log; try{ $('exportBtn').disabled=false; }catch(e){}
  $('bartMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+m.adj.toFixed(1)+'</div><div class="vm-lbl">'+tr('Adjusted avg pumps')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">$'+m.total.toFixed(2)+'</div><div class="vm-lbl">'+tr('Total banked')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+m.explosions+'</div><div class="vm-lbl">'+tr('Explosions')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+m.avgAll.toFixed(1)+'</div><div class="vm-lbl">'+tr('Avg pumps (all)')+'</div></div>';

  _bartDrawChart();
  $('bartResultsPhase').style.display='block';
  try{
    cognosRecordResult('BART','BART',{
      score:'adj '+m.adj.toFixed(1)+' pumps, $'+m.total.toFixed(2)+', '+m.explosions+' bursts',
      adjustedPumps:m.adj.toFixed(2), totalEarned:m.total.toFixed(2),
      explosions:m.explosions, avgPumps:m.avgAll.toFixed(2)
    }, _BART.log);
    updateSidebar();
  }catch(e){}
}

function _bartDrawChart(){
  var cvs=$('bartChart'); if(!cvs) return;
  var ctx=cvs.getContext('2d'); var W=440,H=130,padL=28,padB=18,padT=10,padR=8;
  ctx.fillStyle='#060d14'; ctx.fillRect(0,0,W,H);
  var log=_BART.log; if(!log.length) return;
  var maxP=Math.max.apply(null,log.map(function(r){return r.pumps;}).concat([1]));
  var plotW=W-padL-padR, plotH=H-padB-padT, bw=plotW/log.length;
  ctx.font='8px monospace'; ctx.textAlign='right'; ctx.fillStyle='rgba(138,180,208,0.4)';
  [0,0.5,1].forEach(function(v){ var y=padT+plotH*(1-v); ctx.strokeStyle='rgba(138,180,208,0.15)';ctx.lineWidth=0.5;ctx.beginPath();ctx.moveTo(padL,y);ctx.lineTo(W-padR,y);ctx.stroke(); ctx.fillText(Math.round(maxP*v),padL-3,y+3); });
  log.forEach(function(r,i){
    var barH=(r.pumps/maxP)*plotH, x=padL+i*bw+bw*0.15, w=bw*0.7, y=padT+plotH-barH;
    ctx.fillStyle = r.exploded ? 'rgba(224,92,92,0.85)' : 'rgba(212,180,86,0.85)';
    ctx.fillRect(x,y,w,barH);
  });
  ctx.fillStyle='rgba(138,180,208,0.45)'; ctx.textAlign='center';
  ctx.fillText(tr('balloon →'), padL+plotW/2, H-4);
}

function bartExportCSV(){
  var log=window._bart_log; if(!log) return;
  var cols='balloon,pumps,exploded,earned,explosion_point';
  var body=log.map(function(r){ return [r.balloon,r.pumps,r.exploded,r.earned,r.explosion_point].join(','); }).join('\n');
  var blob=new Blob([cols+'\n'+body],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='bart_'+Date.now()+'.csv';a.click();
}
try{ window.startBART=startBART; window.bartPump=bartPump; window.bartCollect=bartCollect; window.bartExportCSV=bartExportCSV; }catch(e){}

// ══════════════════════════════════════════════════════════
// OSPAN — Operation Span (automated; Unsworth et al., 2005)
// Interleaves a math-verification (processing) with a to-be-
// remembered letter (storage); recall letters in order. Complex
// span = gold-standard working-memory-capacity measure.
// ══════════════════════════════════════════════════════════
var _OSPAN = null;
var OSPAN_LETTERS = ['F','H','J','K','L','N','P','Q','R','S','T','Y'];
var OSPAN_LETTER_MS = 850;   // letter display duration

function _ospanShuffle(a){ a=a.slice(); for(var i=a.length-1;i>0;i--){ var j=Math.floor(Math.random()*(i+1)); var t=a[i];a[i]=a[j];a[j]=t; } return a; }

function _ospanGenMath(){
  var a=2+Math.floor(Math.random()*8), b=2+Math.floor(Math.random()*8), c=1+Math.floor(Math.random()*9);
  var op=Math.random()<0.5?'+':'-';
  var ans= op==='+' ? a*b+c : a*b-c;
  if(ans<1){ op='+'; ans=a*b+c; }
  var isTrue=Math.random()<0.5, shown=ans;
  if(!isTrue){ var ds=[-3,-2,-1,1,2,3], dd; do{ dd=ds[Math.floor(Math.random()*ds.length)]; }while(ans+dd<1); shown=ans+dd; }
  return {eq:'('+a+' × '+b+') '+op+' '+c+' = '+shown, ans:ans, shown:shown, isTrue:isTrue};
}

function startOSPAN(isPractice){
  var sizes = isPractice ? [2,3] : _ospanShuffle([3,3,4,4,5,5,6,6]);
  _OSPAN = {
    active:true, isPractice:isPractice, sizes:sizes, si:0,
    size:0, idx:0, letters:[], phase:'math', math:null, response:[],
    partial:0, absolute:0, mathCorrect:0, mathTotal:0, setMathCorrect:0,
    log:[], _to:null
  };
  hideAll();
  $('ospanScreen').style.display='flex';
  $('ospanPracticeBanner').style.display=isPractice?'block':'none';
  $('ospanResultsPhase').style.display='none';
  $('ospanProgressBar').style.width='0%';
  $('ospan-acc').textContent='';
  try{ $('si-task').textContent='OSPAN'+(isPractice?' (PRAC)':''); }catch(e){}
  try{ $('exportBtn').disabled=true; }catch(e){}
  _ospanStartSet();
}

function _ospanPhase(p){
  _OSPAN.phase=p;
  $('ospanMathPhase').style.display   = p==='math'   ? 'flex':'none';
  $('ospanLetterPhase').style.display = p==='letter' ? 'flex':'none';
  $('ospanRecallPhase').style.display = p==='recall' ? 'flex':'none';
}

function _ospanStartSet(){
  if(!_OSPAN||!_OSPAN.active) return;
  if(_OSPAN.si>=_OSPAN.sizes.length){ ospanEnd(); return; }
  _OSPAN.size=_OSPAN.sizes[_OSPAN.si];
  _OSPAN.idx=0; _OSPAN.letters=[]; _OSPAN.setMathCorrect=0;
  $('ospan-set').textContent=tr('Set')+' '+(_OSPAN.si+1)+'/'+_OSPAN.sizes.length;
  $('ospanProgressBar').style.width=(_OSPAN.si/_OSPAN.sizes.length*100).toFixed(1)+'%';
  _ospanShowMath();
}

function _ospanShowMath(){
  _OSPAN.math=_ospanGenMath();
  $('ospanEq').textContent=_OSPAN.math.eq;
  _ospanPhase('math');
}

function ospanMathAnswer(userTrue){
  if(!_OSPAN||!_OSPAN.active||_OSPAN.phase!=='math') return;
  _OSPAN.mathTotal++;
  if(userTrue===_OSPAN.math.isTrue){ _OSPAN.mathCorrect++; _OSPAN.setMathCorrect++; }
  // show a letter (no repeat within this set)
  var L=_ospanPickLetter(_OSPAN.letters);
  _OSPAN.letters.push(L);
  $('ospanLetter').textContent=L;
  _ospanPhase('letter');
  _OSPAN._to=setTimeout(function(){
    if(!_OSPAN||!_OSPAN.active) return;
    _OSPAN.idx++;
    if(_OSPAN.idx<_OSPAN.size) _ospanShowMath();
    else _ospanRecall();
  }, OSPAN_LETTER_MS);
}

function _ospanPickLetter(used){
  var pool=OSPAN_LETTERS.filter(function(L){return used.indexOf(L)<0;});
  return pool[Math.floor(Math.random()*pool.length)];
}

function _ospanRecall(){
  _OSPAN.response=[];
  _ospanRenderResponse();
  _ospanPhase('recall');
}

function _ospanRenderResponse(){
  var el=$('ospanResponse'); if(!el) return;
  var html='';
  for(var i=0;i<_OSPAN.size;i++){
    var v=_OSPAN.response[i];
    if(v===undefined) html+='<div class="ospan-rbox" style="opacity:0.45;">·</div>';
    else if(v===null) html+='<div class="ospan-rbox blank">␣</div>';
    else html+='<div class="ospan-rbox">'+v+'</div>';
  }
  el.innerHTML=html;
}

function ospanPick(L){
  if(!_OSPAN||!_OSPAN.active||_OSPAN.phase!=='recall') return;
  if(_OSPAN.response.length>=_OSPAN.size) return;
  _OSPAN.response.push(L); _ospanRenderResponse();
}
function ospanBlank(){
  if(!_OSPAN||!_OSPAN.active||_OSPAN.phase!=='recall') return;
  if(_OSPAN.response.length>=_OSPAN.size) return;
  _OSPAN.response.push(null); _ospanRenderResponse();
}
function ospanBackspace(){
  if(!_OSPAN||!_OSPAN.active||_OSPAN.phase!=='recall') return;
  _OSPAN.response.pop(); _ospanRenderResponse();
}
function ospanClear(){
  if(!_OSPAN||!_OSPAN.active||_OSPAN.phase!=='recall') return;
  _OSPAN.response=[]; _ospanRenderResponse();
}

function ospanSubmit(){
  if(!_OSPAN||!_OSPAN.active||_OSPAN.phase!=='recall') return;
  while(_OSPAN.response.length<_OSPAN.size) _OSPAN.response.push(null);
  var nCorrect=0;
  for(var i=0;i<_OSPAN.size;i++){ if(_OSPAN.response[i]===_OSPAN.letters[i]) nCorrect++; }
  var perfect = (nCorrect===_OSPAN.size)?1:0;
  _OSPAN.partial += nCorrect;
  if(perfect) _OSPAN.absolute += _OSPAN.size;
  _OSPAN.log.push({
    set:_OSPAN.si+1, size:_OSPAN.size,
    presented:_OSPAN.letters.join(''),
    recalled:_OSPAN.response.map(function(r){return r||'_';}).join(''),
    correct_pos:nCorrect, perfect:perfect,
    math_correct:_OSPAN.setMathCorrect, math_total:_OSPAN.size
  });
  $('ospan-acc').textContent=tr('Math')+' '+Math.round(_OSPAN.mathCorrect/Math.max(1,_OSPAN.mathTotal)*100)+'%';
  _OSPAN.si++;
  _ospanStartSet();
}

function ospanKey(e){
  if(!_OSPAN||!_OSPAN.active) return;
  var k=(e.key||'').toLowerCase();
  if(_OSPAN.phase==='math'){
    if(k==='t'||k==='1'){ e.preventDefault(); ospanMathAnswer(true); }
    else if(k==='f'||k==='0'){ e.preventDefault(); ospanMathAnswer(false); }
  } else if(_OSPAN.phase==='recall'){
    if(k==='backspace'){ e.preventDefault(); ospanBackspace(); }
    else if(k==='enter'){ e.preventDefault(); ospanSubmit(); }
    else {
      var up=k.toUpperCase();
      if(OSPAN_LETTERS.indexOf(up)>=0){ e.preventDefault(); ospanPick(up); }
    }
  }
}
document.addEventListener('keydown', ospanKey);

function _ospanMetrics(){
  var log=_OSPAN.log;
  var totalLetters=log.reduce(function(s,r){return s+r.size;},0);
  var mathAcc= _OSPAN.mathTotal? _OSPAN.mathCorrect/_OSPAN.mathTotal*100 : 0;
  var span=0; log.forEach(function(r){ if(r.perfect && r.size>span) span=r.size; });
  // recall proportion by set size
  var bySize={};
  log.forEach(function(r){ if(!bySize[r.size]) bySize[r.size]={c:0,n:0}; bySize[r.size].c+=r.correct_pos; bySize[r.size].n+=r.size; });
  return { partial:_OSPAN.partial, absolute:_OSPAN.absolute, totalLetters:totalLetters,
           partialPct: totalLetters? _OSPAN.partial/totalLetters*100:0, mathAcc:mathAcc, span:span, bySize:bySize };
}

function ospanEnd(){
  _OSPAN.active=false;
  _ospanPhase('none');
  $('ospanProgressBar').style.width='100%';
  var m=_ospanMetrics();

  if(_OSPAN.isPractice){
    $('pcStats').innerHTML=tr('PARTIAL')+' <span>'+m.partial+'</span> · '+tr('MATH')+' <span>'+m.mathAcc.toFixed(0)+'%</span>';
    hideAll(); $('practiceComplete').style.display='flex'; return;
  }

  window._ospan_log=_OSPAN.log; try{ $('exportBtn').disabled=false; }catch(e){}
  $('ospanMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+m.partial+'</div><div class="vm-lbl">'+tr('Partial score')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+m.absolute+'</div><div class="vm-lbl">'+tr('Absolute score')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+m.span+'</div><div class="vm-lbl">'+tr('Span (perfect)')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+m.mathAcc.toFixed(0)+'%</div><div class="vm-lbl">'+tr('Math accuracy')+'</div></div>';

  _ospanDrawChart(m);
  $('ospanResultsPhase').style.display='block';
  try{
    cognosRecordResult('OSPAN','OSPAN',{
      score:'partial '+m.partial+'/'+m.totalLetters+', abs '+m.absolute+', math '+m.mathAcc.toFixed(0)+'%',
      partial:m.partial, absolute:m.absolute, span:m.span, mathAccuracy:m.mathAcc.toFixed(1)
    }, _OSPAN.log);
    updateSidebar();
  }catch(e){}
}

function _ospanDrawChart(m){
  var cvs=$('ospanChart'); if(!cvs) return;
  var ctx=cvs.getContext('2d'); var W=440,H=130,padL=28,padB=18,padT=10,padR=8;
  ctx.fillStyle='#060d14'; ctx.fillRect(0,0,W,H);
  var sizes=Object.keys(m.bySize).map(Number).sort(function(a,b){return a-b;});
  if(!sizes.length) return;
  var plotW=W-padL-padR, plotH=H-padB-padT, bw=plotW/sizes.length;
  ctx.font='8px monospace'; ctx.textAlign='right'; ctx.fillStyle='rgba(138,180,208,0.4)';
  [0,0.5,1].forEach(function(v){ var y=padT+plotH*(1-v); ctx.strokeStyle='rgba(138,180,208,0.15)';ctx.lineWidth=0.5;ctx.beginPath();ctx.moveTo(padL,y);ctx.lineTo(W-padR,y);ctx.stroke(); ctx.fillText((v*100).toFixed(0)+'%',padL-3,y+3); });
  sizes.forEach(function(s,i){
    var prop=m.bySize[s].c/m.bySize[s].n;
    var barH=prop*plotH, x=padL+i*bw+bw*0.2, w=bw*0.6, y=padT+plotH-barH;
    ctx.fillStyle='rgba(212,180,86,0.85)'; ctx.fillRect(x,y,w,barH);
    ctx.fillStyle='rgba(138,180,208,0.5)'; ctx.textAlign='center';
    ctx.fillText(tr('size')+' '+s, x+w/2, H-padB+12);
    ctx.fillStyle='rgba(230,235,240,0.7)'; ctx.fillText(Math.round(prop*100)+'%', x+w/2, y-3);
  });
}

function ospanExportCSV(){
  var log=window._ospan_log; if(!log) return;
  var cols='set,size,presented,recalled,correct_position,perfect,math_correct,math_total';
  var body=log.map(function(r){ return [r.set,r.size,r.presented,r.recalled,r.correct_pos,r.perfect,r.math_correct,r.math_total].join(','); }).join('\n');
  var blob=new Blob([cols+'\n'+body],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='ospan_'+Date.now()+'.csv';a.click();
}
try{ window.startOSPAN=startOSPAN; window.ospanMathAnswer=ospanMathAnswer; window.ospanPick=ospanPick; window.ospanBlank=ospanBlank; window.ospanBackspace=ospanBackspace; window.ospanClear=ospanClear; window.ospanSubmit=ospanSubmit; window.ospanExportCSV=ospanExportCSV; }catch(e){}

// ══════════════════════════════════════════════════════════
// TBIS — Temporal Bisection (Wearden, 1991)
// Learn SHORT (200 ms) & LONG (800 ms) standards, then classify
// intermediate flash durations as nearer SHORT or LONG. Yields the
// bisection point (subjective midpoint) and Weber ratio (precision).
// Interval timing engages the CNV.
// ══════════════════════════════════════════════════════════
var _TBIS = null;
var TBIS_SHORT = 200, TBIS_LONG = 800;        // standard durations (ms)
// 7 geometric-spaced test durations from SHORT..LONG (GM = 400)
var TBIS_DURATIONS = [200, 250, 320, 400, 500, 640, 800];
var TBIS_ISI = 700;                            // inter-trial gap (ms)

function _tbisShuffle(a){ a=a.slice(); for(var i=a.length-1;i>0;i--){ var j=Math.floor(Math.random()*(i+1)); var t=a[i];a[i]=a[j];a[j]=t; } return a; }

function startTBIS(isPractice){
  // training: show each standard a few times (labelled), then test trials
  var reps = isPractice ? 2 : 6;
  var testList=[];
  var durs = isPractice ? [TBIS_SHORT, 400, TBIS_LONG] : TBIS_DURATIONS;
  for(var r=0;r<reps;r++) durs.forEach(function(d){ testList.push(d); });
  testList=_tbisShuffle(testList);
  // training sequence: S,L,S,L (+ S,L for main)
  var train = isPractice ? [TBIS_SHORT,TBIS_LONG,TBIS_SHORT,TBIS_LONG]
                         : [TBIS_SHORT,TBIS_LONG,TBIS_SHORT,TBIS_LONG,TBIS_SHORT,TBIS_LONG];
  _TBIS = {
    active:true, isPractice:isPractice, phase:'train',
    train:train, ti:0, test:testList, xi:0,
    log:[], waiting:false, stimStart:0, _to:null
  };
  hideAll();
  $('tbisScreen').style.display='flex';
  $('tbisPracticeBanner').style.display=isPractice?'block':'none';
  $('tbisStimPhase').style.display='flex';
  $('tbisResultsPhase').style.display='none';
  $('tbisResponse').style.display='none';
  $('tbisProgressBar').style.width='0%';
  try{ $('si-task').textContent='TBIS'+(isPractice?' (PRAC)':''); }catch(e){}
  try{ $('exportBtn').disabled=true; }catch(e){}
  $('tbis-phase').textContent=tr('Learn the standards');
  _tbisNextTrain();
}

function _tbisFlash(ms, cb){
  var s=$('tbisStim'); if(s) s.classList.add('on');
  _TBIS._to=setTimeout(function(){
    if(!_TBIS||!_TBIS.active) return;
    var s2=$('tbisStim'); if(s2) s2.classList.remove('on');
    cb && cb();
  }, ms);
}

function _tbisNextTrain(){
  if(!_TBIS||!_TBIS.active) return;
  if(_TBIS.ti>=_TBIS.train.length){ _TBIS.phase='test'; $('tbis-phase').textContent=tr('Judge each flash'); _tbisNextTest(); return; }
  var d=_TBIS.train[_TBIS.ti];
  var isShort = d===TBIS_SHORT;
  $('tbisLabel').textContent=tr('Standard:')+' '+(isShort?tr('SHORT'):tr('LONG'))+' ('+d+' ms)';
  _TBIS.ti++;
  _TBIS._to=setTimeout(function(){
    if(!_TBIS||!_TBIS.active) return;
    _tbisFlash(d, function(){
      _TBIS._to=setTimeout(_tbisNextTrain, TBIS_ISI);
    });
  }, 500);
}

function _tbisNextTest(){
  if(!_TBIS||!_TBIS.active) return;
  if(_TBIS.xi>=_TBIS.test.length){ tbisEnd(); return; }
  $('tbisLabel').textContent='';
  $('tbisResponse').style.display='none';
  $('tbisProgressBar').style.width=(_TBIS.xi/_TBIS.test.length*100).toFixed(1)+'%';
  var d=_TBIS.test[_TBIS.xi];
  _TBIS._to=setTimeout(function(){
    if(!_TBIS||!_TBIS.active) return;
    _TBIS.curDur=d;
    _tbisFlash(d, function(){
      _TBIS.stimStart=(window.performance&&performance.now)?performance.now():Date.now();
      $('tbisResponse').style.display='flex';
      _TBIS.waiting=true;
    });
  }, 400);
}

function tbisRespond(which){
  if(!_TBIS||!_TBIS.active||!_TBIS.waiting||_TBIS.phase!=='test') return;
  _TBIS.waiting=false;
  var now=(window.performance&&performance.now)?performance.now():Date.now();
  var rt=Math.round(now-_TBIS.stimStart);
  _TBIS.log.push({duration:_TBIS.curDur, response:which, long:(which==='long'?1:0), rt:rt});
  $('tbisResponse').style.display='none';
  _TBIS.xi++;
  _TBIS._to=setTimeout(_tbisNextTest, 250);
}

function tbisKey(e){
  if(!_TBIS||!_TBIS.active||!_TBIS.waiting) return;
  var k=(e.key||'').toLowerCase();
  if(k==='f'){ e.preventDefault(); tbisRespond('short'); }
  else if(k==='j'){ e.preventDefault(); tbisRespond('long'); }
}
document.addEventListener('keydown', tbisKey);

function _tbisInterp(points, targetP){
  // points: sorted [{dur, p}]; find duration where p crosses targetP (linear interp)
  for(var i=0;i<points.length-1;i++){
    var a=points[i], b=points[i+1];
    if((a.p<=targetP && b.p>=targetP) || (a.p>=targetP && b.p<=targetP)){
      if(b.p===a.p) return a.dur;
      return a.dur + (targetP-a.p)*(b.dur-a.dur)/(b.p-a.p);
    }
  }
  return null;
}

function _tbisMetrics(){
  var byDur={};
  TBIS_DURATIONS.forEach(function(d){ byDur[d]={n:0,long:0}; });
  _TBIS.log.forEach(function(r){ if(!byDur[r.duration]) byDur[r.duration]={n:0,long:0}; byDur[r.duration].n++; byDur[r.duration].long+=r.long; });
  var points=Object.keys(byDur).map(Number).sort(function(a,b){return a-b;})
    .filter(function(d){return byDur[d].n>0;})
    .map(function(d){ return {dur:d, p: byDur[d].long/byDur[d].n}; });
  var bp=_tbisInterp(points,0.5);
  var t25=_tbisInterp(points,0.25), t75=_tbisInterp(points,0.75);
  var dl=(t25!=null&&t75!=null)?Math.abs(t75-t25)/2:null;
  var wr=(dl!=null&&bp)?dl/bp:null;
  var gm=Math.round(Math.sqrt(TBIS_SHORT*TBIS_LONG)), am=Math.round((TBIS_SHORT+TBIS_LONG)/2);
  return { points:points, bp:bp, dl:dl, wr:wr, gm:gm, am:am, byDur:byDur };
}

function tbisEnd(){
  _TBIS.active=false;
  $('tbisStimPhase').style.display='none';
  $('tbisProgressBar').style.width='100%';
  var m=_tbisMetrics();

  if(_TBIS.isPractice){
    $('pcStats').innerHTML=tr('BISECTION PT')+' <span>'+(m.bp?Math.round(m.bp)+' ms':'—')+'</span>';
    hideAll(); $('practiceComplete').style.display='flex'; return;
  }

  window._tbis_log=_TBIS.log; try{ $('exportBtn').disabled=false; }catch(e){}
  var bpStr=m.bp?Math.round(m.bp)+' ms':'—';
  var wrStr=(m.wr!=null)?m.wr.toFixed(2):'—';
  var dlStr=(m.dl!=null)?Math.round(m.dl)+' ms':'—';
  $('tbisMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+bpStr+'</div><div class="vm-lbl">'+tr('Bisection point')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+wrStr+'</div><div class="vm-lbl">'+tr('Weber ratio')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+dlStr+'</div><div class="vm-lbl">'+tr('Difference limen')+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+m.gm+'/'+m.am+'</div><div class="vm-lbl">'+tr('GM / AM (ref)')+'</div></div>';

  _tbisDrawChart(m);
  $('tbisResultsPhase').style.display='block';
  try{
    cognosRecordResult('TBIS','TBIS',{
      score:'BP '+bpStr+', Weber '+wrStr,
      bisectionPoint:(m.bp?Math.round(m.bp):''), weberRatio:(m.wr!=null?m.wr.toFixed(3):''),
      differenceLimen:(m.dl!=null?Math.round(m.dl):'')
    }, _TBIS.log);
    updateSidebar();
  }catch(e){}
}

function _tbisDrawChart(m){
  var cvs=$('tbisChart'); if(!cvs) return;
  var ctx=cvs.getContext('2d'); var W=440,H=150,padL=32,padB=22,padT=10,padR=10;
  ctx.fillStyle='#060d14'; ctx.fillRect(0,0,W,H);
  var pts=m.points; if(!pts.length) return;
  var dMin=TBIS_SHORT, dMax=TBIS_LONG, plotW=W-padL-padR, plotH=H-padB-padT;
  function X(d){ return padL + plotW*((d-dMin)/(dMax-dMin)); }
  function Y(p){ return padT + plotH*(1-p); }
  ctx.font='8px monospace'; ctx.textAlign='right'; ctx.fillStyle='rgba(138,180,208,0.4)';
  [0,0.5,1].forEach(function(v){ var y=Y(v); ctx.strokeStyle='rgba(138,180,208,0.15)';ctx.lineWidth=0.5;ctx.beginPath();ctx.moveTo(padL,y);ctx.lineTo(W-padR,y);ctx.stroke(); ctx.fillText(v.toFixed(1),padL-3,y+3); });
  // x ticks at each duration
  ctx.textAlign='center';
  pts.forEach(function(p){ ctx.fillStyle='rgba(138,180,208,0.4)'; ctx.fillText(p.dur, X(p.dur), H-padB+12); });
  // bisection-point marker (vertical dashed at BP, to 50%)
  if(m.bp){
    ctx.strokeStyle='rgba(224,92,92,0.6)'; ctx.setLineDash([4,3]); ctx.lineWidth=1;
    ctx.beginPath(); ctx.moveTo(X(m.bp),padT); ctx.lineTo(X(m.bp),Y(0.5)); ctx.stroke();
    ctx.beginPath(); ctx.moveTo(padL,Y(0.5)); ctx.lineTo(X(m.bp),Y(0.5)); ctx.stroke();
    ctx.setLineDash([]);
    ctx.fillStyle='rgba(224,92,92,0.85)'; ctx.textAlign='center'; ctx.fillText(Math.round(m.bp)+'ms', X(m.bp), padT+8);
  }
  // psychometric curve
  ctx.strokeStyle='rgba(212,180,86,0.9)'; ctx.lineWidth=1.6; ctx.beginPath();
  pts.forEach(function(p,i){ var x=X(p.dur), y=Y(p.p); if(i===0)ctx.moveTo(x,y); else ctx.lineTo(x,y); });
  ctx.stroke();
  ctx.fillStyle='rgba(212,180,86,0.95)';
  pts.forEach(function(p){ ctx.beginPath();ctx.arc(X(p.dur),Y(p.p),2.6,0,6.283);ctx.fill(); });
}

function tbisExportCSV(){
  var log=window._tbis_log; if(!log) return;
  var cols='duration_ms,response,long,rt_ms';
  var body=log.map(function(r){ return [r.duration,r.response,r.long,r.rt].join(','); }).join('\n');
  var m=_tbisMetrics();
  var summ='\n\n# proportion long by duration\nduration_ms,n,p_long\n'+
    m.points.map(function(p){ return [p.dur, m.byDur[p.dur].n, p.p.toFixed(3)].join(','); }).join('\n')+
    '\n# bisection_point='+(m.bp?Math.round(m.bp):'NA')+'ms  weber_ratio='+(m.wr!=null?m.wr.toFixed(3):'NA')+'  difference_limen='+(m.dl!=null?Math.round(m.dl):'NA')+'ms';
  var blob=new Blob([cols+'\n'+body+summ],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='tbis_'+Date.now()+'.csv';a.click();
}
try{ window.startTBIS=startTBIS; window.tbisRespond=tbisRespond; window.tbisExportCSV=tbisExportCSV; }catch(e){}

// ══════════════════════════════════════════════════════════
// TOL — Tower of London (Shallice, 1982)
// ══════════════════════════════════════════════════════════
var _TOL = null;

// Problems: [start pegs [p0,p1,p2], goal pegs, min moves]
// Each peg array = discs from bottom to top
// Disc colours: r=red, g=green, b=blue
var TOL_PROBLEMS = [
  {start:[['r','g','b'],[],[]], goal:[['b','g','r'],[],[]], min:2},
  {start:[['r','g','b'],[],[]], goal:[[],['r'],['g','b']], min:2},
  {start:[['r','g','b'],[],[]], goal:[[],['b','g'],['r']], min:3},
  {start:[['r','g','b'],[],[]], goal:[['g'],['r'],['b']], min:3},
  {start:[['r','g','b'],[],[]], goal:[['b'],[],['g','r']], min:3},
  {start:[['r'],['g'],['b']], goal:[['r','g','b'],[],[]], min:3},
  {start:[['r'],['g'],['b']], goal:[[],['r','g'],['b']], min:2},
  {start:[['b','r'],['g'],[]], goal:[['r'],['g','b'],[]], min:3},
  {start:[['g','r'],['b'],[]], goal:[[],['r'],['g','b']], min:3},
  {start:[['g','b'],['r'],[]], goal:[['b'],['g'],['r']], min:4},
  {start:[['r','b'],['g'],[]], goal:[[],['g','r'],['b']], min:4},
  {start:[['b'],['r','g'],[]], goal:[['g','r','b'],[],[]], min:4},
];

var TOL_COLS = {r:'#e05c5c', g:'#81c784', b:'#5b9fda'};
var TOL_PEG_CAPS = [3, 2, 1]; // peg capacities

function tolDrawBoard(cvs, pegs, selected){
  var ctx = cvs.getContext('2d');
  var W=220,H=130,pegW=8,discH=18,discMaxW=54;
  ctx.clearRect(0,0,W,H); ctx.fillStyle='#060d14'; ctx.fillRect(0,0,W,H);
  // Base
  ctx.fillStyle='rgba(138,180,208,0.2)'; ctx.fillRect(10,H-12,W-20,4);
  // Three peg positions
  var pegX=[55,110,165];
  pegX.forEach(function(px,pi){
    // Peg post
    var cap=TOL_PEG_CAPS[pi];
    var pegH=cap*discH+16;
    ctx.fillStyle='rgba(138,180,208,0.25)';
    ctx.fillRect(px-pegW/2,H-12-pegH,pegW,pegH);
    // Discs on this peg
    var peg=pegs[pi]||[];
    peg.forEach(function(disc,di){
      var dw=discMaxW-di*4; // wider at bottom
      var dy=H-12-discH*(di+1);
      var isSel=selected&&selected.peg===pi&&selected.idx===di;
      ctx.fillStyle=TOL_COLS[disc]||'#888';
      if(isSel){ctx.shadowColor=TOL_COLS[disc];ctx.shadowBlur=8;}
      ctx.fillRect(px-dw/2,dy,dw,discH-2);
      ctx.shadowBlur=0;
      ctx.strokeStyle=isSel?'#fff':'rgba(0,0,0,0.3)';ctx.lineWidth=1;
      ctx.strokeRect(px-dw/2,dy,dw,discH-2);
    });
    // Capacity label
    ctx.font='8px "Source Code Pro",monospace';ctx.fillStyle='rgba(138,180,208,0.3)';
    ctx.textAlign='center';ctx.fillText(cap,px,16);
  });
}

function startTOL(isPractice){
  var problems = isPractice ? TOL_PROBLEMS.slice(0,4) : TOL_PROBLEMS;
  _TOL = {
    active:true, isPractice:isPractice,
    problems:problems, problemIdx:0,
    selected:null, moves:0,
    log:[], startTime:0,
    pegs:null  // current board state
  };

  hideAll();
  $('tolScreen','rmetScreen').style.display='flex';
  $('tolPracticeBanner').style.display=isPractice?'block':'none';
  $('tolProgressBar').style.width='0%';
  $('tolStimPhase').style.display='flex';
  $('tolResultsPhase').style.display='none';
  $('si-task').textContent='TOL'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;
  $('tolBoardCanvas').onclick=tolBoardClick;
  tolLoadProblem();
}

function tolLoadProblem(){
  if(!_TOL||!_TOL.active) return;
  var prob=_TOL.problems[_TOL.problemIdx];
  _TOL.pegs=prob.start.map(function(p){return p.slice();});
  _TOL.selected=null; _TOL.moves=0; _TOL.startTime=performance.now();
  $('tol-problem').textContent='Problem '+(_TOL.problemIdx+1)+'/'+_TOL.problems.length;
  $('tol-min').textContent='Min: '+prob.min+' move'+(prob.min>1?'s':'');
  $('tol-moves').textContent='Moves: 0';
  $('tolFeedback').textContent=''; $('tolFeedback').className='feedback';
  $('tolInstruct').textContent='Click a disc to select, then click the destination peg';
  $('tolProgressBar').style.width=(_TOL.problemIdx/_TOL.problems.length*100).toFixed(1)+'%';
  tolRedraw();
}

function tolRedraw(){
  if(!_TOL) return;
  var prob=_TOL.problems[_TOL.problemIdx];
  tolDrawBoard($('tolGoalCanvas'), prob.goal.map(function(p){return p.slice();}), null);
  tolDrawBoard($('tolBoardCanvas'), _TOL.pegs, _TOL.selected);
}

function tolBoardClick(e){
  if(!_TOL||!_TOL.active) return;
  var cvs=$('tolBoardCanvas');
  var rect=cvs.getBoundingClientRect();
  var mx=(e.clientX-rect.left)*(cvs.width/rect.width);
  var H=130,discH=18;
  var pegX=[55,110,165];
  // Find which peg was clicked
  var clickedPeg=-1;
  pegX.forEach(function(px,pi){if(Math.abs(mx-px)<30)clickedPeg=pi;});
  if(clickedPeg<0) return;

  if(_TOL.selected===null){
    // Select top disc of clicked peg
    var peg=_TOL.pegs[clickedPeg];
    if(!peg||!peg.length){$('tolInstruct').textContent='No disc on that peg';return;}
    _TOL.selected={peg:clickedPeg,idx:peg.length-1,disc:peg[peg.length-1]};
    $('tolInstruct').textContent='Now click the destination peg';
    tolRedraw();
  } else {
    // Try to place disc
    var fromPeg=_TOL.selected.peg;
    var toPeg=clickedPeg;
    if(fromPeg===toPeg){_TOL.selected=null;tolRedraw();return;}
    var dest=_TOL.pegs[toPeg];
    if(dest.length>=TOL_PEG_CAPS[toPeg]){
      $('tolFeedback').textContent='Peg '+(['left','middle','right'][toPeg])+' is full (max '+TOL_PEG_CAPS[toPeg]+')';
      $('tolFeedback').className='feedback err';
      _TOL.selected=null;tolRedraw();return;
    }
    // Move disc
    var disc=_TOL.pegs[fromPeg].pop();
    _TOL.pegs[toPeg].push(disc);
    _TOL.moves++;
    _TOL.selected=null;
    $('tol-moves').textContent='Moves: '+_TOL.moves;
    $('tolFeedback').textContent=''; $('tolFeedback').className='feedback';
    $('tolInstruct').textContent='Click a disc to select';
    tolRedraw();
    // Check solved
    tolCheckSolved();
  }
}

function tolCheckSolved(){
  var prob=_TOL.problems[_TOL.problemIdx];
  var goal=prob.goal;
  var solved=goal.every(function(peg,pi){
    return peg.length===_TOL.pegs[pi].length&&
      peg.every(function(d,di){return d===_TOL.pegs[pi][di];});
  });
  if(solved){
    var rt=+(performance.now()-_TOL.startTime).toFixed(0);
    var optimal=_TOL.moves===prob.min;
    _TOL.log.push({problem:_TOL.problemIdx+1,min:prob.min,moves:_TOL.moves,optimal:optimal,rt:rt,solved:true});
    var fb=$('tolFeedback');
    fb.textContent=optimal?'✓ Solved in minimum moves! ('+_TOL.moves+')':'✓ Solved in '+_TOL.moves+' moves (min: '+prob.min+')';
    fb.className='feedback '+(optimal?'ok':'');
    fb.style.color=optimal?'#81c784':'var(--gold)';
    $('tolInstruct').textContent='';
    setTimeout(function(){if(_TOL&&_TOL.active)tolNextProblem();},1200);
  }
}

function tolReset(){
  if(!_TOL||!_TOL.active) return;
  tolLoadProblem();
}

function tolGiveUp(){
  if(!_TOL||!_TOL.active) return;
  var prob=_TOL.problems[_TOL.problemIdx];
  var rt=+(performance.now()-_TOL.startTime).toFixed(0);
  _TOL.log.push({problem:_TOL.problemIdx+1,min:prob.min,moves:_TOL.moves,optimal:false,rt:rt,solved:false});
  tolNextProblem();
}

function tolNextProblem(){
  if(!_TOL) return;
  _TOL.problemIdx++;
  if(_TOL.problemIdx>=_TOL.problems.length){tolEnd();return;}
  $('tolFeedback').textContent=''; $('tolFeedback').className='feedback';
  tolLoadProblem();
}

function tolEnd(){
  _TOL.active=false;
  $('tolStimPhase').style.display='none';
  $('tolProgressBar').style.width='100%';
  var log=_TOL.log;

  if(_TOL.isPractice){
    var opt=log.filter(function(r){return r.optimal;}).length;
    $('pcStats').innerHTML='OPTIMAL <span>'+opt+'/'+log.length+'</span>';
    hideAll();$('practiceComplete').style.display='flex';return;
  }
  window._tol_log=log;$('exportBtn').disabled=false;
  var solved=log.filter(function(r){return r.solved;}).length;
  var optimal=log.filter(function(r){return r.optimal;}).length;
  var avgMoves=log.length?(log.reduce(function(a,r){return a+r.moves;},0)/log.length).toFixed(1):'—';
  var avgRT=log.filter(function(r){return r.solved;});
  var mRT=avgRT.length?(avgRT.reduce(function(a,r){return a+r.rt;},0)/avgRT.length/1000).toFixed(1):'—';
  $('tolMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+optimal+'/'+log.length+'</div><div class="vm-lbl">Optimal</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+solved+'/'+log.length+'</div><div class="vm-lbl">Solved</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+avgMoves+'</div><div class="vm-lbl">Avg Moves</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+mRT+'s</div><div class="vm-lbl">Avg Time</div></div>';
  $('tolResultsPhase').style.display='block';
  updateSidebar();
}

function tolExportCSV(){
  var log=window._tol_log;if(!log)return;
  var blob=new Blob(['problem,min_moves,actual_moves,optimal,solved,rt_ms\n'+log.map(function(r){
    return[r.problem,r.min,r.moves,r.optimal?1:0,r.solved?1:0,r.rt].join(',');
  }).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='tol_'+Date.now()+'.csv';a.click();
}

// ══════════════════════════════════════════════════════════
// RMET — Reading the Mind in the Eyes Test
// ══════════════════════════════════════════════════════════
var _RMET = null;

// 36 items: [correct_idx, options×4, eye_render_params]
// eye_params: brow(-1=down,0=neutral,1=up), lid(0=open,1=half,2=narrow),
//             pupil(-1=left,0=center,1=right), wrinkle(bool)
var RMET_ITEMS = [
  {correct:0,opts:['playful','comforting','irritated','bored'],eye:{brow:1,lid:0,pupil:0,wrinkle:false}},
  {correct:1,opts:['terrified','upset','arrogant','annoyed'],eye:{brow:0,lid:1,pupil:0,wrinkle:true}},
  {correct:0,opts:['joking','flustered','desire','convinced'],eye:{brow:0,lid:0,pupil:1,wrinkle:false}},
  {correct:2,opts:['insulting','worry','contemplative','friendly'],eye:{brow:-1,lid:1,pupil:0,wrinkle:true}},
  {correct:3,opts:['dominant','friendly','guilty','horrified'],eye:{brow:1,lid:0,pupil:-1,wrinkle:false}},
  {correct:1,opts:['fantasizing','relieved','aghast','curious'],eye:{brow:0,lid:2,pupil:1,wrinkle:false}},
  {correct:2,opts:['sarcastic','unsure','cautious','sympathetic'],eye:{brow:-1,lid:1,pupil:0,wrinkle:true}},
  {correct:0,opts:['interested','hostile','horrified','preoccupied'],eye:{brow:1,lid:0,pupil:0,wrinkle:false}},
  {correct:3,opts:['flustered','ashamed','suspicious','indifferent'],eye:{brow:0,lid:2,pupil:-1,wrinkle:true}},
  {correct:1,opts:['decisive','amused','aghast','bored'],eye:{brow:0,lid:0,pupil:1,wrinkle:false}},
  {correct:2,opts:['arrogant','grateful','insisting','imploring'],eye:{brow:-1,lid:0,pupil:0,wrinkle:false}},
  {correct:0,opts:['flirtatious','thankful','hostile','dismayed'],eye:{brow:1,lid:1,pupil:1,wrinkle:false}},
  {correct:3,opts:['puzzled','nervous','distrusting','calm'],eye:{brow:0,lid:0,pupil:0,wrinkle:false}},
  {correct:1,opts:['critical','sincere','joking','concerned'],eye:{brow:-1,lid:1,pupil:0,wrinkle:true}},
  {correct:2,opts:['decisive','anticipating','accusing','fantasizing'],eye:{brow:0,lid:0,pupil:-1,wrinkle:false}},
  {correct:0,opts:['alarmed','baffled','calm','dominant'],eye:{brow:1,lid:0,pupil:1,wrinkle:false}},
  {correct:3,opts:['embarrassed','confused','dispirited','suspicious'],eye:{brow:-1,lid:2,pupil:0,wrinkle:true}},
  {correct:1,opts:['alarmed','thoughtful','excited','hostile'],eye:{brow:0,lid:1,pupil:0,wrinkle:false}},
  {correct:2,opts:['sarcastic','confused','frightened','aghast'],eye:{brow:1,lid:0,pupil:0,wrinkle:false}},
  {correct:0,opts:['troubled','excited','hostile','panicky'],eye:{brow:-1,lid:1,pupil:-1,wrinkle:true}},
  {correct:3,opts:['convinced','accusing','nervous','sceptical'],eye:{brow:0,lid:2,pupil:1,wrinkle:false}},
  {correct:1,opts:['arrogant','anticipating','dismayed','suspicious'],eye:{brow:0,lid:0,pupil:0,wrinkle:false}},
  {correct:2,opts:['baffled','aghast','close','friendly'],eye:{brow:1,lid:1,pupil:0,wrinkle:false}},
  {correct:0,opts:['dominant','threatening','humble','friendly'],eye:{brow:-1,lid:0,pupil:0,wrinkle:true}},
  {correct:3,opts:['guilty','bored','fantasizing','confident'],eye:{brow:1,lid:0,pupil:1,wrinkle:false}},
  {correct:1,opts:['curious','friendly','dispirited','suspicious'],eye:{brow:0,lid:1,pupil:0,wrinkle:true}},
  {correct:2,opts:['panicky','suspicious','contemplative','horrified'],eye:{brow:-1,lid:1,pupil:-1,wrinkle:false}},
  {correct:0,opts:['interested','uncertain','accusatory','distracted'],eye:{brow:0,lid:0,pupil:1,wrinkle:false}},
  {correct:3,opts:['playful','relieved','contrite','ashamed'],eye:{brow:1,lid:1,pupil:0,wrinkle:false}},
  {correct:1,opts:['sarcastic','reflective','worried','confident'],eye:{brow:0,lid:2,pupil:0,wrinkle:true}},
  {correct:2,opts:['friendly','alarmed','dismissive','preoccupied'],eye:{brow:-1,lid:0,pupil:0,wrinkle:false}},
  {correct:0,opts:['curious','nervous','bored','hostile'],eye:{brow:1,lid:0,pupil:-1,wrinkle:false}},
  {correct:3,opts:['pensive','irritated','excited','amused'],eye:{brow:0,lid:1,pupil:1,wrinkle:false}},
  {correct:1,opts:['confused','flirtatious','tentative','suspicious'],eye:{brow:0,lid:0,pupil:0,wrinkle:true}},
  {correct:2,opts:['indifferent','sceptical','cautious','distracted'],eye:{brow:-1,lid:1,pupil:0,wrinkle:false}},
  {correct:0,opts:['decisive','grateful','unsympathetic','bored'],eye:{brow:1,lid:0,pupil:0,wrinkle:false}}
];

function rmetDrawEye(cvs, params, highlightOpt){
  var ctx=cvs.getContext('2d');
  var W=320,H=120;
  // Warm off-white background
  ctx.fillStyle='#f5f0e8';ctx.fillRect(0,0,W,H);
  var cx=W/2,cy=H/2;

  // --- Draw one eye (centre of canvas) ---
  var EW=110,EH=40; // eye width/height

  // Brow
  var browY=cy-EH/2-18+params.brow*(-8);
  ctx.beginPath();
  ctx.moveTo(cx-EW/2,browY+params.brow*4);
  ctx.quadraticCurveTo(cx,browY-6+params.brow*4,cx+EW/2,browY+params.brow*4);
  ctx.strokeStyle='#1a1008';ctx.lineWidth=params.wrinkle?4:3;ctx.stroke();
  // Wrinkle lines
  if(params.wrinkle){
    ctx.strokeStyle='rgba(26,16,8,0.3)';ctx.lineWidth=1;
    [[cx-EW*0.1,browY+8,cx-EW*0.25,browY+16],[cx+EW*0.1,browY+8,cx+EW*0.25,browY+16]].forEach(function(l){
      ctx.beginPath();ctx.moveTo(l[0],l[1]);ctx.lineTo(l[2],l[3]);ctx.stroke();
    });
  }

  // Eye socket shadow
  ctx.beginPath();
  ctx.ellipse(cx,cy,EW/2+8,EH/2+12,0,0,Math.PI*2);
  ctx.fillStyle='rgba(180,160,140,0.15)';ctx.fill();

  // Sclera
  ctx.beginPath();
  ctx.ellipse(cx,cy,EW/2,EH/2,0,0,Math.PI*2);
  ctx.fillStyle='#f8f4ee';ctx.fill();
  ctx.strokeStyle='#1a1008';ctx.lineWidth=1.5;ctx.stroke();

  // Iris
  var irisR=EH/2*0.72;
  var pupilX=cx+params.pupil*14;
  ctx.beginPath();ctx.arc(pupilX,cy,irisR,0,Math.PI*2);
  ctx.fillStyle='#4a3828';ctx.fill();
  ctx.strokeStyle='#1a1008';ctx.lineWidth=1;ctx.stroke();
  // Iris detail
  for(var i=0;i<8;i++){
    var ang=i*Math.PI/4;
    ctx.beginPath();ctx.moveTo(pupilX,cy);
    ctx.lineTo(pupilX+Math.cos(ang)*irisR*0.9,cy+Math.sin(ang)*irisR*0.9);
    ctx.strokeStyle='rgba(80,55,35,0.3)';ctx.lineWidth=0.5;ctx.stroke();
  }
  // Pupil
  ctx.beginPath();ctx.arc(pupilX,cy,irisR*0.45,0,Math.PI*2);
  ctx.fillStyle='#0a0806';ctx.fill();
  // Catchlight
  ctx.beginPath();ctx.arc(pupilX+irisR*0.2,cy-irisR*0.2,irisR*0.12,0,Math.PI*2);
  ctx.fillStyle='rgba(255,255,255,0.85)';ctx.fill();

  // Upper lid (controls how much of eye is visible)
  var lidDrop=[0,EH*0.25,EH*0.5][params.lid];
  ctx.beginPath();
  ctx.moveTo(cx-EW/2,cy-EH/2+lidDrop);
  ctx.quadraticCurveTo(cx,cy-EH/2-6+lidDrop,cx+EW/2,cy-EH/2+lidDrop);
  ctx.lineTo(cx+EW/2,cy-EH/2+20);
  ctx.quadraticCurveTo(cx,cy-EH/2-10,cx-EW/2,cy-EH/2+20);
  ctx.closePath();
  ctx.fillStyle='#f5f0e8';ctx.fill();
  // Lash line
  ctx.beginPath();
  ctx.moveTo(cx-EW/2,cy-EH/2+lidDrop);
  ctx.quadraticCurveTo(cx,cy-EH/2-8+lidDrop,cx+EW/2,cy-EH/2+lidDrop);
  ctx.strokeStyle='#1a1008';ctx.lineWidth=2.5;ctx.stroke();

  // Lower lid
  ctx.beginPath();
  ctx.moveTo(cx-EW/2,cy+EH/2);
  ctx.quadraticCurveTo(cx,cy+EH/2+4,cx+EW/2,cy+EH/2);
  ctx.strokeStyle='rgba(26,16,8,0.5)';ctx.lineWidth=1.5;ctx.stroke();

  // Corner details
  ctx.beginPath();ctx.arc(cx-EW/2,cy,3,0,Math.PI*2);
  ctx.fillStyle='rgba(200,160,150,0.6)';ctx.fill();
}

function startRMET(isPractice){
  var items = isPractice ? RMET_ITEMS.slice(0,6) : RMET_ITEMS;
  _RMET = {
    active:true, isPractice:isPractice,
    items:items, idx:0, correct:0, log:[],
    startTime:0
  };
  hideAll();
  $('rmetScreen').style.display='flex';
  $('rmetPracticeBanner').style.display=isPractice?'block':'none';
  $('rmetProgressBar').style.width='0%';
  $('rmetStimPhase').style.display='flex';
  $('rmetResultsPhase').style.display='none';
  $('rmet-score').textContent='0';
  $('si-task').textContent='RMET'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;
  rmetNext();
}

function rmetNext(){
  if(!_RMET||!_RMET.active) return;
  if(_RMET.idx>=_RMET.items.length){rmetEnd();return;}
  var item=_RMET.items[_RMET.idx];
  $('rmet-trial').textContent=(_RMET.idx+1)+'/'+_RMET.items.length;
  $('rmetProgressBar').style.width=(_RMET.idx/_RMET.items.length*100).toFixed(1)+'%';
  $('rmetFeedback').textContent='';$('rmetFeedback').className='feedback';
  _RMET.startTime=performance.now();

  // Draw eye
  rmetDrawEye($('rmetEyeCanvas'),item.eye,null);
  triggerFlash();

  // Build options
  var opts=$('rmetOptions'); opts.innerHTML='';
  item.opts.forEach(function(word,i){
    var btn=document.createElement('button');
    btn.textContent=word;
    btn.style.cssText='background:#0a1620;border:1px solid #2a4060;color:var(--mid);'+
      'font-family:"EB Garamond",serif;font-size:1.05rem;padding:10px 8px;border-radius:3px;'+
      'cursor:pointer;transition:all 0.12s;text-align:center;';
    btn.onmouseenter=function(){btn.style.borderColor='var(--gold)';btn.style.color='var(--gold)';};
    btn.onmouseleave=function(){if(!btn.dataset.chosen){btn.style.borderColor='#2a4060';btn.style.color='var(--mid)';}};
    btn.onclick=function(){
      if(!_RMET||!_RMET.active||btn.dataset.chosen) return;
      var rt=+(performance.now()-_RMET.startTime).toFixed(1);
      var correct=i===item.correct;
      if(correct)_RMET.correct++;
      _RMET.log.push({trial:_RMET.idx+1,correct_answer:item.opts[item.correct],
        response:word,correct:correct,rt:rt});
      $('rmet-score').textContent=_RMET.correct;
      // Show feedback colours on all buttons
      opts.querySelectorAll('button').forEach(function(b,bi){
        b.dataset.chosen='1';
        b.style.pointerEvents='none';
        if(bi===item.correct){b.style.borderColor='#81c784';b.style.color='#81c784';b.style.background='rgba(129,199,132,0.1)';}
        else if(bi===i&&!correct){b.style.borderColor='#e05c5c';b.style.color='#e05c5c';}
      });
      var fb=$('rmetFeedback');
      fb.textContent=correct?'✓ Correct':'✗ — answer: '+item.opts[item.correct];
      fb.className='feedback '+(correct?'ok':'err');
      _RMET.idx++;
      setTimeout(function(){if(_RMET&&_RMET.active)rmetNext();},800);
    };
    opts.appendChild(btn);
  });
}

function rmetEnd(){
  _RMET.active=false;
  $('rmetStimPhase').style.display='none';
  $('rmetProgressBar').style.width='100%';
  if(_RMET.isPractice){
    $('pcStats').innerHTML='CORRECT <span>'+_RMET.correct+'/'+_RMET.items.length+'</span>';
    hideAll();$('practiceComplete').style.display='flex';return;
  }
  window._rmet_log=_RMET.log;$('exportBtn').disabled=false;
  var acc=(_RMET.correct/_RMET.items.length*100).toFixed(0);
  var rtValid=_RMET.log.filter(function(r){return r.rt;});
  var avgRT=rtValid.length?(rtValid.reduce(function(a,b){return a+b.rt;},0)/rtValid.length/1000).toFixed(1):'—';
  $('rmetMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+_RMET.correct+'/'+_RMET.items.length+'</div><div class="vm-lbl">Correct</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+acc+'%</div><div class="vm-lbl">Accuracy</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+avgRT+'s</div><div class="vm-lbl">Avg Time</div></div>';
  $('rmetResultsPhase').style.display='block';
  updateSidebar();
}

function rmetExportCSV(){
  var log=window._rmet_log;if(!log)return;
  var blob=new Blob(['trial,correct_answer,response,correct,rt_ms\n'+log.map(function(r){
    return[r.trial,r.correct_answer,r.response,r.correct?1:0,r.rt].join(',');
  }).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='rmet_'+Date.now()+'.csv';a.click();
}

// ══════════════════════════════════════════════════════════
// P1/N1 Spatial Attention (Hillyard paradigm)
// ══════════════════════════════════════════════════════════
var _P1N1 = null;

function startP1N1(isPractice){
  // Blocks alternate attended side every 20 trials
  var BLOCK_SIZE = 20;
  var N_BLOCKS   = isPractice ? 2 : 6;
  var SOA        = 600; // stimulus onset asynchrony ms
  var TARGET_PROB = 0.2; // 20% targets (brighter flash)

  _P1N1 = {
    active:true, isPractice:isPractice,
    trial:0, maxTrials:BLOCK_SIZE*N_BLOCKS,
    blockSize:BLOCK_SIZE, blockNum:0,
    attendSide:'left', // alternates each block
    correct:0, hits:0, fas:0,
    _blockBoundaryDone:-1,
    log:[], _timers:[]
  };

  function T(fn,ms){ var t=setTimeout(fn,ms); _P1N1._timers.push(t); return t; }
  _P1N1.T=T;
  _P1N1.clear=function(){ _P1N1._timers.forEach(clearTimeout); _P1N1._timers=[]; };

  hideAll();
  $('p1n1Screen','cnvwScreen','thalphaScreen').style.display='flex';
  $('p1n1PracticeBanner').style.display=isPractice?'block':'none';
  $('p1n1ProgressBar').style.width='0%';
  $('p1n1StimPhase').style.display='flex';
  $('p1n1ResultsPhase').style.display='none';
  $('si-task').textContent='P1N1'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;

  function p1n1End(){
    _P1N1.clear(); _P1N1.active=false;
    $('p1n1StimPhase').style.display='none';
    $('p1n1ProgressBar').style.width='100%';
    var log=_P1N1.log;
    if(isPractice){
      $('pcStats').innerHTML='HITS <span>'+_P1N1.hits+'</span> FA <span>'+_P1N1.fas+'</span>';
      hideAll(); $('practiceComplete').style.display='flex'; return;
    }
    window._p1n1_log=log;
    $('exportBtn').disabled=false;
    // Split by attended/unattended
    var attended=log.filter(function(r){return r.side===r.attendSide;});
    var unattended=log.filter(function(r){return r.side!==r.attendSide;});
    var attHits=attended.filter(function(r){return r.isTarget&&r.responded;});
    var attRT=attHits.length?(attHits.reduce(function(a,b){return a+b.rt;},0)/attHits.length).toFixed(0):'—';
    var unattHits=unattended.filter(function(r){return r.isTarget&&r.responded;});
    var unattRT=unattHits.length?(unattHits.reduce(function(a,b){return a+b.rt;},0)/unattHits.length).toFixed(0):'—';
    var attAcc=attended.filter(function(r){return r.isTarget;}).length?
      (attHits.length/attended.filter(function(r){return r.isTarget;}).length*100).toFixed(0):'—';
    $('p1n1Metrics').innerHTML=
      '<div class="vrt-metric"><div class="vm-val">'+attRT+'ms</div><div class="vm-lbl">Attended RT</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+unattRT+'ms</div><div class="vm-lbl">Unattended RT</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+attAcc+'%</div><div class="vm-lbl">Att. Accuracy</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+_P1N1.fas+'</div><div class="vm-lbl">False Alarms</div></div>';
    $('p1n1ResultsPhase').style.display='block';
    updateSidebar();
  }

  function p1n1Next(){
    if(!_P1N1.active) return;
    if(_P1N1.trial>=_P1N1.maxTrials){ p1n1End(); return; }

    // New block → switch attention side (only ONCE per boundary). Without the
    // guard, trial stays divisible by blockSize after the pause and the task
    // loops the transition forever — stimuli never resume ("flashes stop
    // midway"). _blockBoundaryDone marks the boundary we've already handled.
    if(_P1N1.trial>0 && _P1N1.trial%_P1N1.blockSize===0 && _P1N1._blockBoundaryDone!==_P1N1.trial){
      _P1N1._blockBoundaryDone=_P1N1.trial;
      _P1N1.blockNum++;
      _P1N1.attendSide = _P1N1.attendSide==='left'?'right':'left';
      // Brief inter-block pause; show the cue arrow for the NEW attend side as
      // the central fixation (no cross), so the participant sees where to attend.
      drawP1N1Arrow(_P1N1.attendSide);
      $('p1n1Feedback').textContent='';
      $('p1n1-attend').textContent=tr('ATTEND ')+ _P1N1.attendSide.toUpperCase();
      T(p1n1Next, 1500); return;
    }

    _P1N1.trial++;
    $('p1n1-trial').textContent='Trial '+_P1N1.trial+'/'+_P1N1.maxTrials;
    $('p1n1-attend').textContent=tr('ATTEND ')+_P1N1.attendSide.toUpperCase();
    $('p1n1ProgressBar').style.width=((_P1N1.trial-1)/_P1N1.maxTrials*100).toFixed(1)+'%';
    $('p1n1Feedback').textContent=''; $('p1n1Feedback').className='feedback';

    // Determine stimulus: which side, and is it a target?
    var stimSide = Math.random()<0.5 ? 'left' : 'right';
    var isTarget = Math.random() < TARGET_PROB;
    var isAttended = stimSide === _P1N1.attendSide;

    // Show cue arrow (clear, bold, high-contrast)
    drawP1N1Arrow(_P1N1.attendSide);

    // Flash stimulus
    var stimEl = stimSide==='left' ? $('p1n1Left') : $('p1n1Right');
    var brightness = isTarget ? 'rgba(220,210,185,0.95)' : 'rgba(180,170,150,0.55)';
    stimEl.style.background=brightness;
    stimEl.style.borderColor=isTarget?'rgba(212,180,86,0.8)':'rgba(138,180,208,0.4)';
    triggerFlash();

    var onset=performance.now();
    var responded=false;

    // Flash off after 100ms
    T(function(){
      stimEl.style.background='#060d14';
      stimEl.style.borderColor='#1a2f44';
    }, 100);

    // Response window
    var keyHandler=function(e){
      if(!_P1N1.active) return;
      var resp=(e.key==='f'||e.key==='F')?'left':(e.key==='j'||e.key==='J')?'right':null;
      if(!resp) return;
      e.preventDefault();
      if(responded) return;
      responded=true;
      var rt=+(performance.now()-onset).toFixed(1);
      var correct=(resp===stimSide)&&isTarget;
      var isFa=(resp===stimSide)&&!isTarget;
      if(correct) _P1N1.hits++;
      if(isFa) _P1N1.fas++;
      _P1N1.log.push({trial:_P1N1.trial,side:stimSide,attendSide:_P1N1.attendSide,
        isTarget:isTarget,isAttended:isAttended,response:resp,correct:correct,rt:rt});
      var fb=$('p1n1Feedback');
      fb.textContent=correct?rt+'ms ✓':isFa?rt+'ms ✗ FA':'—';
      fb.className='feedback '+(correct?'ok':isFa?'err':'');
      document.removeEventListener('keydown',keyHandler);
    };
    document.addEventListener('keydown',keyHandler);

    // Next stimulus after SOA
    T(function(){
      document.removeEventListener('keydown',keyHandler);
      if(!responded&&isTarget&&isAttended){
        // Miss on attended target
        _P1N1.log.push({trial:_P1N1.trial,side:stimSide,attendSide:_P1N1.attendSide,
          isTarget:isTarget,isAttended:isAttended,response:null,correct:false,rt:null});
      }
      p1n1Next();
    }, SOA);
  }

  // Show initial cue
  $('p1n1-attend').textContent=tr('ATTEND LEFT');
  drawP1N1Arrow('left');
  T(p1n1Next, 1200);
}
// ── Shared directional ARROW rendering ──────────────────────────────────
// One arrow shape used everywhere (DOM cues + canvas animations) so every
// task's arrow looks identical: a horizontal shaft with a clean arrowhead,
// rather than the solid-triangle / glyph characters. dir ∈ left|right|up|down.
// cognosArrowSVG → markup string for DOM elements.
// cognosDrawArrow → paints the same shape on a 2D canvas context.
function cognosArrowSVG(dir, opts){
  opts=opts||{};
  var color=opts.color||'var(--gold)';
  var w=opts.w||64, h=opts.h||32, sw=opts.strokeWidth||5;
  var glow=opts.glow===false?'':'filter:drop-shadow(0 0 6px rgba(212,180,86,0.55));';
  // Double-headed (neutral) arrow.
  if(dir==='both'||dir==='neutral'){
    return '<svg width="'+w+'" height="'+h+'" viewBox="0 0 64 32" xmlns="http://www.w3.org/2000/svg" '+
      'style="display:block;'+glow+'">'+
      '<line x1="14" y1="16" x2="50" y2="16" stroke="'+color+'" stroke-width="'+sw+'" stroke-linecap="round"/>'+
      '<polyline points="22,7 10,16 22,25" fill="none" stroke="'+color+'" stroke-width="'+sw+'" stroke-linecap="round" stroke-linejoin="round"/>'+
      '<polyline points="42,7 54,16 42,25" fill="none" stroke="'+color+'" stroke-width="'+sw+'" stroke-linecap="round" stroke-linejoin="round"/>'+
      '</svg>';
  }
  // base = right-pointing in a 64×32 box; rotate/mirror for other directions.
  var rot = dir==='left'?'scaleX(-1)':dir==='up'?'rotate(-90deg)':dir==='down'?'rotate(90deg)':'';
  var transform = rot?('transform:'+rot+';'):'';
  return '<svg width="'+w+'" height="'+h+'" viewBox="0 0 64 32" xmlns="http://www.w3.org/2000/svg" '+
         'style="display:block;'+glow+transform+'">'+
         '<line x1="6" y1="16" x2="48" y2="16" stroke="'+color+'" stroke-width="'+sw+'" stroke-linecap="round"/>'+
         '<polyline points="40,6 54,16 40,26" fill="none" stroke="'+color+'" stroke-width="'+sw+'" stroke-linecap="round" stroke-linejoin="round"/>'+
         '</svg>';
}
// Set an element's content to the arrow (clears any glyph/text first).
function cognosSetArrow(el, dir, opts){
  if(typeof el==='string') el=document.getElementById(el);
  if(!el) return;
  el.textContent='';
  el.innerHTML=cognosArrowSVG(dir, opts);
  if(!/flex/.test(el.style.display)){ el.style.display='inline-flex'; }
  el.style.alignItems='center'; el.style.justifyContent='center';
}
// Draw the matching arrow on a canvas, centred at (cx,cy), spanning `len` px,
// pointing `dir`. Uses the same shaft+head proportions as the SVG.
function cognosDrawArrow(ctx, cx, cy, len, dir, opts){
  opts=opts||{};
  var color=opts.color||'#d4b456';
  var lw=opts.lineWidth||Math.max(3, len*0.09);
  var half=len/2;
  // unit vector for the direction
  var ux = dir==='left'?-1:dir==='right'?1:0;
  var uy = dir==='up'?-1:dir==='down'?1:0;
  var tipX=cx+ux*half, tipY=cy+uy*half;       // arrowhead tip
  var tailX=cx-ux*half, tailY=cy-uy*half;      // shaft start
  var headLen=len*0.32, headW=len*0.28;
  // perpendicular
  var px=-uy, py=ux;
  ctx.save();
  ctx.strokeStyle=color; ctx.fillStyle=color;
  ctx.lineWidth=lw; ctx.lineCap='round'; ctx.lineJoin='round';
  if(opts.glow){ ctx.shadowColor='rgba(212,180,86,0.55)'; ctx.shadowBlur=8; }
  // shaft (stop a little short of the tip so the head sits cleanly)
  ctx.beginPath();
  ctx.moveTo(tailX, tailY);
  ctx.lineTo(tipX-ux*headLen*0.6, tipY-uy*headLen*0.6);
  ctx.stroke();
  // arrowhead as an open chevron (matches the SVG polyline)
  var bx=tipX-ux*headLen, by=tipY-uy*headLen;
  ctx.beginPath();
  ctx.moveTo(bx+px*headW/2, by+py*headW/2);
  ctx.lineTo(tipX, tipY);
  ctx.lineTo(bx-px*headW/2, by-py*headW/2);
  ctx.stroke();
  ctx.restore();
}
// P1N1 fixation arrow (delegates to the shared renderer).
function drawP1N1Arrow(side){
  cognosSetArrow('p1n1Cue', side==='left'?'left':'right', {w:64,h:32});
  var cue=document.getElementById('p1n1Cue');
  if(cue){ cue.style.opacity='1'; cue.style.left=''; cue.style.right=''; }
}
// Render a Flanker row as five SVG arrows (or dashes for the neutral flankers),
// using the shared arrow shape so it matches every other task. `pattern` is the
// original glyph string (e.g. '→ → ← → →'); each token maps to an arrow dir or,
// for '—', a neutral dash. The 5-element congruent/incongruent layout — and thus
// the flanker-interference manipulation — is preserved exactly.
function cognosFlankerRowHTML(pattern, opts){
  opts=opts||{};
  var color=opts.color||'#e8e0d0';
  var aw=opts.w||44, ah=opts.h||22, sw=opts.strokeWidth||4;
  var toks=String(pattern).trim().split(/\s+/);
  var parts=toks.map(function(t){
    if(t==='←') return cognosArrowSVG('left',  {color:color,w:aw,h:ah,strokeWidth:sw,glow:false});
    if(t==='→') return cognosArrowSVG('right', {color:color,w:aw,h:ah,strokeWidth:sw,glow:false});
    // neutral dash flanker
    return '<svg width="'+aw+'" height="'+ah+'" viewBox="0 0 64 32" style="display:block;">'+
           '<line x1="14" y1="16" x2="50" y2="16" stroke="'+color+'" stroke-width="'+sw+'" stroke-linecap="round"/></svg>';
  });
  return '<span style="display:inline-flex;align-items:center;gap:14px;">'+parts.join('')+'</span>';
}

function p1n1ExportCSV(){
  var log=window._p1n1_log;if(!log)return;
  var blob=new Blob(['trial,side,attend_side,is_attended,is_target,response,correct,rt_ms\n'+
    log.map(function(r){
      return[r.trial,r.side,r.attendSide,r.isAttended?1:0,r.isTarget?1:0,
             r.response||'',r.correct?1:0,r.rt!=null?r.rt:''].join(',');
    }).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);
  a.download='p1n1_'+Date.now()+'.csv';a.click();
}

// ══════════════════════════════════════════════════════════
// CNV WARNING SIGNAL (S1→S2 foreperiod)
// ══════════════════════════════════════════════════════════
var _CNVW = null;
function startCNVW(isPractice){
  var FOREPERIOD=1000, ISI=1500;
  _CNVW={active:true,isPractice:isPractice,trial:0,
    maxTrials:taskTrials('CNVW',10,40,isPractice),
    log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_CNVW._timers.push(t);return t;}
  _CNVW.T=T; _CNVW.clear=function(){_CNVW._timers.forEach(clearTimeout);_CNVW._timers=[];};
  hideAll();$('cnvwScreen').style.display='flex';
  $('cnvwPracticeBanner').style.display=isPractice?'block':'none';
  $('cnvwProgressBar').style.width='0%';
  $('cnvwStimPhase').style.display='flex';
  $('cnvwResultsPhase').style.display='none';
  $('si-task').textContent='CNVW'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;

  function cnvwEnd(){
    _CNVW.clear();_CNVW.active=false;
    $('cnvwStimPhase').style.display='none';
    $('cnvwProgressBar').style.width='100%';
    if(isPractice){
      var valid=_CNVW.log.filter(function(r){return r.rt;});
      $('pcStats').innerHTML='AVG RT <span>'+(valid.length?(valid.reduce(function(a,b){return a+b.rt;},0)/valid.length).toFixed(0):'—')+'ms</span>';
      hideAll();$('practiceComplete').style.display='flex';return;
    }
    window._cnvw_log=_CNVW.log;$('exportBtn').disabled=false;
    var valid=_CNVW.log.filter(function(r){return r.rt;});
    var avgRT=valid.length?(valid.reduce(function(a,b){return a+b.rt;},0)/valid.length).toFixed(0):'—';
    var misses=_CNVW.log.filter(function(r){return !r.rt;}).length;
    $('cnvwMetrics').innerHTML=
      '<div class="vrt-metric"><div class="vm-val">'+avgRT+'ms</div><div class="vm-lbl">Mean RT (S2)</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+misses+'</div><div class="vm-lbl">Misses</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+_CNVW.log.length+'</div><div class="vm-lbl">Trials</div></div>';
    $('cnvwResultsPhase').style.display='block';
    updateSidebar();
  }

  function cnvwNext(){
    if(!_CNVW.active) return;
    if(_CNVW.trial>=_CNVW.maxTrials){cnvwEnd();return;}
    _CNVW.trial++;
    $('cnvw-trial').textContent='Trial '+_CNVW.trial+'/'+_CNVW.maxTrials;
    $('cnvwProgressBar').style.width=((_CNVW.trial-1)/_CNVW.maxTrials*100).toFixed(1)+'%';
    $('cnvwFeedback').textContent='';$('cnvwFeedback').className='feedback';
    $('cnvwPaceFill').style.width='0%';
    $('cnvwDisplay').textContent='+';$('cnvwDisplay').style.color='var(--mid)';
    $('cnvw-phase').textContent=tr('READY');

    // S1 — warning tone
    T(function(){
      $('cnvw-phase').textContent='S1 — WARNING';
      $('cnvwDisplay').textContent='!';$('cnvwDisplay').style.color='rgba(212,180,86,0.7)';
      try{
        var ac=new(window.AudioContext||window.webkitAudioContext)();
        var o=ac.createOscillator();var g=ac.createGain();
        o.frequency.value=880;o.type='sine';
        g.gain.setValueAtTime(0.12,ac.currentTime);g.gain.linearRampToValueAtTime(0,ac.currentTime+0.05);
        o.connect(g);g.connect(ac.destination);o.start();o.stop(ac.currentTime+0.05);
        setTimeout(function(){ac.close();},300);
      }catch(e){}
      triggerFlash();
      // Pace bar fills during foreperiod
      var start=performance.now();
      function fillBar(){
        if(!_CNVW.active)return;
        var p=Math.min(1,(performance.now()-start)/FOREPERIOD);
        $('cnvwPaceFill').style.width=(p*100)+'%';
        if(p<1)requestAnimationFrame(fillBar);
      }
      requestAnimationFrame(fillBar);
      // S2 after foreperiod
      T(function(){
        $('cnvw-phase').textContent='S2 — RESPOND';
        cognosSetArrow('cnvwDisplay', 'right', {w:110,h:55,strokeWidth:6});
        var onset=performance.now();var responded=false;
        var kh=function(e){
          if(!_CNVW.active)return;
          if(e.key==='f'||e.key==='F'){
            e.preventDefault();if(responded)return;responded=true;
            var rt=+(performance.now()-onset).toFixed(1);
            _CNVW.log.push({trial:_CNVW.trial,rt:rt,t:performance.now()});
            $('cnvwFeedback').textContent=rt+'ms ✓';$('cnvwFeedback').className='feedback ok';
            $('cnvwDisplay').textContent='+';$('cnvwDisplay').style.color='var(--mid)';
            document.removeEventListener('keydown',kh);
          }
        };
        document.addEventListener('keydown',kh);
        T(function(){
          document.removeEventListener('keydown',kh);
          if(!responded){_CNVW.log.push({trial:_CNVW.trial,rt:null,t:performance.now()});
            $('cnvwFeedback').textContent='miss';$('cnvwFeedback').className='feedback err';}
          $('cnvwDisplay').textContent='+';$('cnvwDisplay').style.color='var(--mid)';
          $('cnvwPaceFill').style.width='0%';
          T(cnvwNext,ISI);
        },800);
      },FOREPERIOD);
    },800+Math.random()*400);
  }
  cnvwNext();
}
function cnvwExportCSV(){
  var log=window._cnvw_log;if(!log)return;
  var blob=new Blob(['trial,rt_ms,t_ms\n'+log.map(function(r){return[r.trial,r.rt!=null?r.rt:'',r.t.toFixed(0)].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='cnvw_'+Date.now()+'.csv';a.click();
}

// ══════════════════════════════════════════════════════════
// THETA/ALPHA OSCILLATIONS (eyes-open / eyes-closed)
// ══════════════════════════════════════════════════════════
var _THALPHA = null;
function startTHALPHA(isPractice){
  var BLOCK_DUR=isPractice?10000:30000;
  var BLOCKS=isPractice?['EO','EC']:['EO','EC','EO','EC','EO','EC'];
  _THALPHA={active:true,isPractice:isPractice,blockIdx:0,blocks:BLOCKS,
    blockDur:BLOCK_DUR,log:[],_raf:null,blockStart:0};
  hideAll();$('thalphaScreen').style.display='flex';
  $('thalphaPracticeBanner').style.display=isPractice?'block':'none';
  $('thalphaProgressBar').style.width='0%';
  $('thalphaStimPhase').style.display='flex';
  $('thalphaResultsPhase').style.display='none';
  $('si-task').textContent='THALPHA'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;
  thalphaNextBlock();
}
function thalphaNextBlock(){
  if(!_THALPHA||!_THALPHA.active)return;
  if(_THALPHA.blockIdx>=_THALPHA.blocks.length){thalphaEnd();return;}
  var block=_THALPHA.blocks[_THALPHA.blockIdx];
  var isOpen=block==='EO';
  $('thalphaInstruct').textContent=isOpen?'EYES OPEN':'EYES CLOSED';
  $('thalphaInstruct').style.color=isOpen?'var(--gold)':'rgba(91,159,218,0.8)';
  $('thalphaFix').style.display=isOpen?'block':'none';
  $('thalphaHint').textContent=isOpen?'Fixate the cross — keep eyes open and still':'Close your eyes and relax — keep still';
  $('thalpha-phase').textContent=block;
  $('thalphaProgressBar').style.width=(_THALPHA.blockIdx/_THALPHA.blocks.length*100).toFixed(1)+'%';
  triggerFlash();
  _THALPHA.blockStart=performance.now();
  _THALPHA.log.push({block:_THALPHA.blockIdx+1,type:block,start:_THALPHA.blockStart});
  var dur=_THALPHA.blockDur;
  function tick(){
    if(!_THALPHA||!_THALPHA.active)return;
    var elapsed=performance.now()-_THALPHA.blockStart;
    var rem=Math.max(0,(dur-elapsed)/1000);
    $('thalpha-time').textContent=rem.toFixed(0)+'s';
    if(elapsed>=dur){_THALPHA.blockIdx++;thalphaNextBlock();return;}
    _THALPHA._raf=requestAnimationFrame(tick);
  }
  _THALPHA._raf=requestAnimationFrame(tick);
}
function thalphaEnd(){
  if(!_THALPHA)return;_THALPHA.active=false;
  if(_THALPHA._raf)cancelAnimationFrame(_THALPHA._raf);
  $('thalphaStimPhase').style.display='none';$('thalphaProgressBar').style.width='100%';
  var eoBlocks=_THALPHA.log.filter(function(b){return b.type==='EO';}).length;
  var ecBlocks=_THALPHA.log.filter(function(b){return b.type==='EC';}).length;
  if(_THALPHA.isPractice){
    $('pcStats').innerHTML='EO <span>'+eoBlocks+'</span> EC <span>'+ecBlocks+'</span>';
    hideAll();$('practiceComplete').style.display='flex';return;
  }
  window._thalpha_log=_THALPHA.log;$('exportBtn').disabled=false;
  var totalSec=(_THALPHA.blocks.length*_THALPHA.blockDur/1000).toFixed(0);
  $('thalphaMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+eoBlocks+'</div><div class="vm-lbl">Eyes-Open blocks</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+ecBlocks+'</div><div class="vm-lbl">Eyes-Closed blocks</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+totalSec+'s</div><div class="vm-lbl">Total duration</div></div>';
  $('thalphaResultsPhase').style.display='block';
  updateSidebar();
}
function thalphaExportCSV(){
  var log=window._thalpha_log;if(!log)return;
  var blob=new Blob(['block,type,start_ms\n'+log.map(function(r){return[r.block,r.type,r.start.toFixed(0)].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='thalpha_'+Date.now()+'.csv';a.click();
}

// ══════════════════════════════════════════════════════════

// ══ SART ════════════════════════════════════════════════
var _SART=null;
function startSART(isPractice){
  var N=taskTrials('SART',8,225,isPractice);
  _SART={active:true,isPractice:isPractice,trial:0,maxTrials:N,commissions:0,omissions:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_SART._timers.push(t);return t;}
  _SART.T=T;_SART.clear=function(){_SART._timers.forEach(clearTimeout);_SART._timers=[];};
  hideAll();$('sartScreen').style.display='flex';
  $('sartPracticeBanner').style.display=isPractice?'block':'none';
  $('sartProgressBar').style.width='0%';$('sartStimPhase').style.display='flex';
  $('sartResultsPhase').style.display='none';$('sartFeedback').textContent='';
  $('si-task').textContent='SART'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  function end(){
    _SART.clear();_SART.active=false;$('sartStimPhase').style.display='none';$('sartProgressBar').style.width='100%';
    if(isPractice){$('pcStats').innerHTML='COMM <span>'+_SART.commissions+'</span> OM <span>'+_SART.omissions+'</span>';hideAll();$('practiceComplete').style.display='flex';return;}
    window._sart_log=_SART.log;$('exportBtn').disabled=false;
    var hits=_SART.log.filter(function(r){return !r.isNoGo&&r.responded;});
    var avgRT=hits.length?(hits.reduce(function(a,b){return a+b.rt;},0)/hits.length).toFixed(0):'--';
    $('sartMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+_SART.commissions+'</div><div class="vm-lbl">Commissions</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+_SART.omissions+'</div><div class="vm-lbl">Omissions</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+avgRT+'ms</div><div class="vm-lbl">Mean RT</div></div>';
    $('sartResultsPhase').style.display='block';updateSidebar();
  }
  function next(){
    if(!_SART.active)return;if(_SART.trial>=N){end();return;}
    _SART.trial++;$('sartProgressBar').style.width=(_SART.trial/N*100).toFixed(1)+'%';$('sart-trial').textContent='Trial '+_SART.trial+'/'+N;
    var d=Math.random()<0.11?3:(function(){var x;do{x=1+Math.floor(Math.random()*9);}while(x===3);return x;})();
    var ng=d===3;$('sartDigit').textContent=d;$('sartDigit').style.color=ng?'#e05c5c':'var(--gold)';
    $('sartFeedback').textContent='';$('sartFeedback').className='feedback';triggerFlash();
    var onset=performance.now();var resp=false;
    var kh=function(e){if(!_SART.active)return;if(e.code!=='Space'&&e.key!==' ')return;e.preventDefault();if(resp)return;resp=true;
      var rt=+(performance.now()-onset).toFixed(1);
      if(ng){_SART.commissions++;$('sartFeedback').textContent='X';$('sartFeedback').className='feedback err';}
      else{$('sartFeedback').textContent=rt+'ms';$('sartFeedback').className='feedback ok';}
      _SART.log.push({trial:_SART.trial,digit:d,isNoGo:ng,responded:true,rt:rt});document.removeEventListener('keydown',kh);
    };
    document.addEventListener('keydown',kh);
    // SART (Robertson 1997): 250 ms digit + ~900 ms mask = ~1150 ms SOA, with
    // the response window open across the whole SOA. Previously the listener was
    // removed at ~500 ms, cutting the window short.
    T(function(){$('sartDigit').textContent='#';$('sartDigit').style.color='rgba(138,180,208,0.3)';},250);
    T(function(){document.removeEventListener('keydown',kh);
      if(!resp){if(!ng)_SART.omissions++;_SART.log.push({trial:_SART.trial,digit:d,isNoGo:ng,responded:false,rt:null});}
      $('sartDigit').textContent='';T(next,200);},1150);
  }
  T(next,800);
}
function sartExportCSV(){
  var log=window._sart_log;if(!log)return;
  var blob=new Blob(['trial,digit,is_nogo,responded,rt_ms\n'+log.map(function(r){return[r.trial,r.digit,r.isNoGo?1:0,r.responded?1:0,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='sart_'+Date.now()+'.csv';a.click();
}

// ══ UFOV ════════════════════════════════════════════════
var _UFOV=null;
function startUFOV(isPractice){
  _UFOV={active:true,isPractice:isPractice,trial:0,maxTrials:isPractice?8:60,correct:0,log:[],soa:200,waiting:false};
  hideAll();$('ufovScreen').style.display='flex';$('ufovPracticeBanner').style.display=isPractice?'block':'none';
  $('ufovProgressBar').style.width='0%';$('ufovStimPhase').style.display='flex';$('ufovResultsPhase').style.display='none';
  $('si-task').textContent='UFOV'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  $('ufovCanvas').onclick=ufovClick;
  function end(){
    _UFOV.active=false;$('ufovStimPhase').style.display='none';$('ufovProgressBar').style.width='100%';
    if(isPractice){$('pcStats').innerHTML='ACC <span>'+(_UFOV.correct/_UFOV.trial*100).toFixed(0)+'%</span>';hideAll();$('practiceComplete').style.display='flex';return;}
    window._ufov_log=_UFOV.log;$('exportBtn').disabled=false;
    $('ufovMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+_UFOV.soa+'ms</div><div class="vm-lbl">Threshold SOA</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+(_UFOV.correct/_UFOV.trial*100).toFixed(0)+'%</div><div class="vm-lbl">Accuracy</div></div>';
    $('ufovResultsPhase').style.display='block';updateSidebar();
  }
  function next(){
    if(!_UFOV.active)return;if(_UFOV.trial>=_UFOV.maxTrials){end();return;}
    _UFOV.trial++;$('ufov-trial').textContent='Trial '+_UFOV.trial+'/'+_UFOV.maxTrials;$('ufov-thresh').textContent=tr('SOA ')+_UFOV.soa+'ms';
    $('ufovProgressBar').style.width=(_UFOV.trial/_UFOV.maxTrials*100).toFixed(1)+'%';
    $('ufovFeedback').textContent='';$('ufovFeedback').className='feedback';
    var ang=Math.floor(Math.random()*8)*45;var R=110;
    var rad=ang*Math.PI/180;var px=150+Math.cos(rad)*R,py=150+Math.sin(rad)*R;
    // UFOV is a DUAL task: identify the central object (car vs truck) AND
    // localise the peripheral target. Both must be correct to count.
    var centralIsCar=Math.random()<0.5;
    _UFOV.cur={px:px,py:py,centralIsCar:centralIsCar};
    _UFOV.waiting=false;_UFOV.centralAns=null;_UFOV._next=next;
    var cvs=$('ufovCanvas'),ctx=cvs.getContext('2d'),W=300,H=300,cx=150,cy=150;
    ctx.clearRect(0,0,W,H);ctx.fillStyle='#060d14';ctx.fillRect(0,0,W,H);
    ctx.strokeStyle='rgba(138,180,208,0.3)';ctx.lineWidth=1;
    ctx.beginPath();ctx.moveTo(cx-8,cy);ctx.lineTo(cx+8,cy);ctx.stroke();
    ctx.beginPath();ctx.moveTo(cx,cy-8);ctx.lineTo(cx,cy+8);ctx.stroke();
    drawVehicle(ctx,cx,cy,centralIsCar);
    ctx.fillStyle='rgba(212,180,86,0.9)';ctx.beginPath();ctx.arc(px,py,8,0,Math.PI*2);ctx.fill();
    triggerFlash();
    setTimeout(function(){
      // Mask: blank both central object and peripheral dot after SOA.
      ctx.clearRect(0,0,W,H);ctx.fillStyle='#060d14';ctx.fillRect(0,0,W,H);
      ctx.strokeStyle='rgba(138,180,208,0.3)';ctx.lineWidth=1;
      ctx.beginPath();ctx.moveTo(cx-8,cy);ctx.lineTo(cx+8,cy);ctx.stroke();
      ctx.beginPath();ctx.moveTo(cx,cy-8);ctx.lineTo(cx,cy+8);ctx.stroke();
      _UFOV.waiting=true;
      $('ufovFeedback').textContent=tr('Car or truck? (F = car · J = truck)');
      $('ufovFeedback').className='feedback';
    },_UFOV.soa);
  }
  next();
}
// Simple top-down vehicle glyphs so car and truck are visibly different.
// Side-view vehicle glyphs, centred on (cx,cy). Large and clearly distinct:
// a sedan (sloped roof) vs a truck (tall boxy cab + long flat cargo bed).
function drawVehicle(ctx,cx,cy,isCar){
  ctx.save();
  var body='#f5f0e8', glass='#3b6ea5', wheel='#11202c', tire='#cdd6df';
  if(isCar){
    // sedan body: lower hull + sloped cabin
    var x=cx-45,y=cy-2,w=90,h=18;
    ctx.fillStyle=body;
    ctx.beginPath();
    ctx.moveTo(x,y+h);
    ctx.lineTo(x,y+4);
    ctx.lineTo(x+18,y+4);
    ctx.lineTo(x+30,y-16);     // windshield rise
    ctx.lineTo(x+62,y-16);     // roof
    ctx.lineTo(x+72,y+4);      // rear slope
    ctx.lineTo(x+w,y+4);
    ctx.lineTo(x+w,y+h);
    ctx.closePath();ctx.fill();
    // windows
    ctx.fillStyle=glass;
    ctx.beginPath();
    ctx.moveTo(x+30,y-12);ctx.lineTo(x+60,y-12);ctx.lineTo(x+66,y+1);ctx.lineTo(x+26,y+1);ctx.closePath();ctx.fill();
    // wheels
    ctx.fillStyle=tire;
    ctx.beginPath();ctx.arc(x+24,y+h,9,0,Math.PI*2);ctx.fill();
    ctx.beginPath();ctx.arc(x+w-22,y+h,9,0,Math.PI*2);ctx.fill();
    ctx.fillStyle=wheel;
    ctx.beginPath();ctx.arc(x+24,y+h,4,0,Math.PI*2);ctx.fill();
    ctx.beginPath();ctx.arc(x+w-22,y+h,4,0,Math.PI*2);ctx.fill();
  } else {
    // truck: tall boxy cab on the right + long flat cargo box on the left
    var bx=cx-50,by=cy-2,bw=100,bh=20;
    ctx.fillStyle=body;
    ctx.fillRect(bx,by-22,62,bh+22);          // tall cargo box (left)
    ctx.fillRect(bx+66,by-10,34,bh+10);        // cab (right, shorter)
    // cab window
    ctx.fillStyle=glass;
    ctx.fillRect(bx+78,by-6,18,12);
    // wheels (three: cab + two under cargo)
    ctx.fillStyle=tire;
    ctx.beginPath();ctx.arc(bx+16,by+bh,9,0,Math.PI*2);ctx.fill();
    ctx.beginPath();ctx.arc(bx+42,by+bh,9,0,Math.PI*2);ctx.fill();
    ctx.beginPath();ctx.arc(bx+84,by+bh,9,0,Math.PI*2);ctx.fill();
    ctx.fillStyle=wheel;
    ctx.beginPath();ctx.arc(bx+16,by+bh,4,0,Math.PI*2);ctx.fill();
    ctx.beginPath();ctx.arc(bx+42,by+bh,4,0,Math.PI*2);ctx.fill();
    ctx.beginPath();ctx.arc(bx+84,by+bh,4,0,Math.PI*2);ctx.fill();
  }
  ctx.restore();
}
function ufovClick(e){
  if(!_UFOV||!_UFOV.active||!_UFOV.waiting)return;
  // The central car/truck answer must be given first.
  if(_UFOV.centralAns===null){
    var fb0=$('ufovFeedback');fb0.textContent=tr('First: car or truck? (F = car · J = truck)');fb0.className='feedback';
    return;
  }
  _UFOV.waiting=false;
  var cvs=$('ufovCanvas'),rect=cvs.getBoundingClientRect();
  var mx=(e.clientX-rect.left)*(300/rect.width),my=(e.clientY-rect.top)*(300/rect.height);
  var d=Math.sqrt(Math.pow(mx-_UFOV.cur.px,2)+Math.pow(my-_UFOV.cur.py,2));
  var periphOK=d<35;
  var centralOK=(_UFOV.centralAns===_UFOV.cur.centralIsCar);
  var ok=periphOK&&centralOK;            // UFOV: BOTH tasks must be correct
  if(ok){_UFOV.correct++;_UFOV.soa=Math.max(50,_UFOV.soa-20);}else{_UFOV.soa=Math.min(500,_UFOV.soa+30);}
  _UFOV.log.push({trial:_UFOV.trial,soa:_UFOV.soa,correct:ok,central_correct:centralOK,periph_correct:periphOK,dist:d.toFixed(1)});
  var fb=$('ufovFeedback');
  fb.textContent=ok?'correct':(!centralOK&&!periphOK?'both wrong':(!centralOK?'wrong vehicle':'missed location'));
  fb.className='feedback '+(ok?'ok':'err');
  setTimeout(function(){if(_UFOV&&_UFOV.active&&_UFOV._next)_UFOV._next();},2000);
}
document.addEventListener('keydown',function ufovKey(e){
  if(!_UFOV||!_UFOV.active){return;}
  if(!_UFOV.waiting||_UFOV.centralAns!==null)return;
  if(e.key==='f'||e.key==='F'){e.preventDefault();_UFOV.centralAns=true;ufovCentralEcho();}
  else if(e.key==='j'||e.key==='J'){e.preventDefault();_UFOV.centralAns=false;ufovCentralEcho();}
});
function ufovCentralEcho(){
  var fb=$('ufovFeedback');
  fb.textContent=tr('Now click where you saw the flash');fb.className='feedback';
}
function ufovExportCSV(){
  var log=window._ufov_log;if(!log)return;
  var blob=new Blob(['trial,soa_ms,correct,central_correct,periph_correct,dist_px\n'+log.map(function(r){return[r.trial,r.soa,r.correct?1:0,r.central_correct?1:0,r.periph_correct?1:0,r.dist].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='ufov_'+Date.now()+'.csv';a.click();
}

// ══ PAL ════════════════════════════════════════════════
var _PAL=null;
var PAL_PAIRS=[['apple','doctor'],['river','candle'],['stone','justice'],['winter','eagle'],
  ['bridge','violin'],['thunder','mirror'],['garden','anchor'],['silver','forest'],
  ['castle','pepper'],['dancer','compass'],['feather','lantern'],['muscle','pilgrim']];
function startPAL(isPractice){
  var np=isPractice?4:12;
  var pairs=PAL_PAIRS.slice(0,np).map(function(p){return{cue:p[0],target:p[1],errors:0,learned:false};});
  _PAL={active:true,isPractice:isPractice,pairs:pairs,trial:0,correct:0,errors:0,log:[]};
  hideAll();$('palScreen').style.display='flex';$('palPracticeBanner').style.display=isPractice?'block':'none';
  $('palProgressBar').style.width='0%';$('palStimPhase').style.display='flex';$('palResultsPhase').style.display='none';
  $('si-task').textContent='PAL'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  palStudy(1);
}
function palStudy(tn){
  $('pal-phase').textContent=tr('STUDY ')+tn;$('pal-trial').textContent='Learn these pairs';
  var pin=$('palInput'); if(pin) pin.style.display='none';
  $('palChoices') && ($('palChoices').style.display='none');
  $('palFeedback').textContent='';$('palCueDisplay').textContent='';
  var pairs=_PAL.pairs.filter(function(p){return !p.learned;});var pi=0;
  function show(){
    if(!_PAL.active)return;if(pi>=pairs.length){setTimeout(function(){palTest(tn);},800);return;}
    $('palPairDisplay').textContent=pairs[pi].cue.toUpperCase()+' -- '+pairs[pi].target.toUpperCase();
    triggerFlash();pi++;setTimeout(show,2000);
  }
  show();
}
function palTest(tn){
  $('pal-phase').textContent=tr('TEST ')+tn;
  $('palInput') && ($('palInput').style.display='none');
  var ul=_PAL.pairs.filter(function(p){return !p.learned;}).sort(function(){return Math.random()-0.5;});
  var allTargets=_PAL.pairs.map(function(p){return p.target;});
  var ti=0;
  function test(){
    if(!_PAL.active)return;
    if(ti>=ul.length){
      if(tn<3&&_PAL.pairs.some(function(p){return !p.learned;}))palStudy(tn+1);else palEnd();return;}
    var pair=ul[ti++];
    $('palPairDisplay').textContent=pair.cue.toUpperCase()+' -- ?';
    $('palCueDisplay').textContent='Which word was paired with "'+pair.cue+'"?';
    $('pal-trial').textContent=ti+'/'+ul.length;
    // Build choices: correct target + up to 3 foils from other pairs' targets.
    var foils=allTargets.filter(function(t){return t!==pair.target;}).sort(function(){return Math.random()-0.5;}).slice(0,3);
    var choices=foils.concat([pair.target]).sort(function(){return Math.random()-0.5;});
    var box=$('palChoices'); box.innerHTML=''; box.style.display='flex';
    $('palFeedback').textContent=''; $('palFeedback').className='feedback';
    var onset=performance.now(); var answered=false;
    function choose(word){
      if(answered) return; answered=true;
      var ok=word===pair.target;
      if(ok){pair.learned=true;_PAL.correct++;}else{pair.errors++;_PAL.errors++;}
      _PAL.log.push({trial:tn,cue:pair.cue,target:pair.target,response:word,correct:ok,rt:+(performance.now()-onset).toFixed(1)});
      Array.prototype.forEach.call(box.children,function(b){
        if(b._word===pair.target) b.classList.add('flash-ok');
        else if(b._word===word) b.classList.add('flash-err');
        b.onclick=null;
      });
      var fb=$('palFeedback');fb.textContent=ok?'correct':'paired word: '+pair.target;fb.className='feedback '+(ok?'ok':'err');
      try{ Trigger.send(ok?1:2,'PAL_resp',{trial:tn,correct:ok}); }catch(e){}
      setTimeout(function(){ box.style.display='none'; test(); },650);
    }
    choices.forEach(function(word,i){
      var btn=document.createElement('button');
      btn.className='fr-recog-btn'; btn._word=word;
      btn.style.cssText='min-width:130px;padding:12px 18px;';
      btn.innerHTML='<span class="fr-recog-key">'+(i+1)+'</span><span class="fr-recog-lbl" style="font-size:1.1rem;">'+word.toUpperCase()+'</span>';
      btn.onclick=function(){ choose(word); };
      box.appendChild(btn);
    });
    _PAL._choose=choose; _PAL._choices=choices;
    triggerFlash();
  }
  test();
}
document.addEventListener('keydown',function palChoiceKey(e){
  if(!_PAL||!_PAL.active||!_PAL._choices) return;
  if($('palChoices').style.display==='none') return;
  if(e.target&&(e.target.tagName==='INPUT'||e.target.tagName==='TEXTAREA')) return;
  var n=parseInt(e.key,10);
  if(n>=1&&n<=_PAL._choices.length){ e.preventDefault(); _PAL._choose(_PAL._choices[n-1]); }
});
function palEnd(){
  _PAL.active=false;$('palStimPhase').style.display='none';$('palProgressBar').style.width='100%';
  if(_PAL.isPractice){$('pcStats').innerHTML='CORRECT <span>'+_PAL.correct+'</span>';hideAll();$('practiceComplete').style.display='flex';return;}
  window._pal_log=_PAL.log;$('exportBtn').disabled=false;
  $('palMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+_PAL.correct+'/'+_PAL.pairs.length+'</div><div class="vm-lbl">Pairs Learned</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+_PAL.errors+'</div><div class="vm-lbl">Total Errors</div></div>';
  $('palResultsPhase').style.display='block';updateSidebar();
}
function palExportCSV(){
  var log=window._pal_log;if(!log)return;
  var blob=new Blob(['trial,cue,target,response,correct,rt_ms\n'+log.map(function(r){return[r.trial,r.cue,r.target,r.response,r.correct?1:0,r.rt!==undefined?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='pal_'+Date.now()+'.csv';a.click();
}

// ══ SRCMEM ════════════════════════════════════════════════
var _SRCMEM=null;
var SRCMEM_WORDS=['anchor','bishop','candle','dolphin','emerald','falcon','glacier','harbor',
  'island','jasmine','kettle','lantern','mango','napkin','obelisk','pilgrim',
  'quarry','raven','scarlet','temple','umber','velvet','walnut','yonder','prism','cipher'];
function startSrcMem(isPractice){
  var N=taskTrials('SRCMEM',8,24,isPractice);
  var targets=SRCMEM_WORDS.slice(0,N);
  var items=targets.map(function(w,i){return{word:w,source:i%2===0?'left':'right'};});
  items.sort(function(){return Math.random()-0.5;});
  var foils=SRCMEM_WORDS.slice(N,N+N/2);
  _SRCMEM={active:true,isPractice:isPractice,items:items,foils:foils,phase:'study',log:[],hits:0,fas:0,srcCorrect:0};
  hideAll();$('srcmemScreen').style.display='flex';$('srcmemPracticeBanner').style.display=isPractice?'block':'none';
  $('srcmemProgressBar').style.width='0%';$('srcmemStimPhase').style.display='flex';$('srcmemResultsPhase').style.display='none';
  $('si-task').textContent='SRCMEM'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  srcmemStudy();
}
function srcmemStudy(){
  _SRCMEM.phase='study';$('srcmem-phase').textContent=tr('STUDY');
  $('srcmemInstruct').textContent='Remember each word and which side it appears on';
  $('srcmemHint').textContent='';$('srcmemFeedback').textContent='';
  var items=_SRCMEM.items;var si=0;
  function show(){
    if(!_SRCMEM.active)return;if(si>=items.length){setTimeout(srcmemTest,1200);return;}
    var item=items[si++];
    $('srcmem-trial').textContent=si+'/'+items.length;$('srcmemProgressBar').style.width=(si/items.length*50).toFixed(1)+'%';
    $('srcmemLeft').textContent=item.source==='left'?item.word:'';$('srcmemLeft').style.borderColor=item.source==='left'?'rgba(212,180,86,0.5)':'#1a2f44';$('srcmemLeft').style.color=item.source==='left'?'var(--gold)':'var(--mid)';
    $('srcmemRight').textContent=item.source==='right'?item.word:'';$('srcmemRight').style.borderColor=item.source==='right'?'rgba(212,180,86,0.5)':'#1a2f44';$('srcmemRight').style.color=item.source==='right'?'var(--gold)':'var(--mid)';
    triggerFlash();setTimeout(show,1500);
  }show();
}
function srcmemTest(){
  _SRCMEM.phase='test';$('srcmem-phase').textContent=tr('TEST');
  var testItems=_SRCMEM.items.concat(_SRCMEM.foils.map(function(w){return{word:w,source:null};})).sort(function(){return Math.random()-0.5;});
  var ti=0;
  function next(){
    if(!_SRCMEM.active)return;if(ti>=testItems.length){srcmemEnd();return;}
    var item=testItems[ti++];var isOld=item.source!==null;
    $('srcmemLeft').textContent=item.word;$('srcmemRight').textContent=item.word;
    $('srcmemLeft').style.borderColor='#1a2f44';$('srcmemRight').style.borderColor='#1a2f44';
    $('srcmemLeft').style.color='var(--mid)';$('srcmemRight').style.color='var(--mid)';
    $('srcmem-trial').textContent=ti+'/'+testItems.length;$('srcmemProgressBar').style.width=(50+ti/testItems.length*50).toFixed(1)+'%';
    $('srcmemInstruct').textContent='F=OLD  J=NEW';$('srcmemHint').textContent='';$('srcmemFeedback').textContent='';$('srcmemFeedback').className='feedback';
    triggerFlash();
    var onset=performance.now();var step=0;
    var kh=function(e){
      if(!_SRCMEM.active)return;
      if(step===0){
        var r=e.key==='f'||e.key==='F'?true:e.key==='j'||e.key==='J'?false:null;
        if(r===null)return;e.preventDefault();
        var rt=+(performance.now()-onset).toFixed(1);
        var hit=r&&isOld;var fa=r&&!isOld;if(hit)_SRCMEM.hits++;if(fa)_SRCMEM.fas++;
        _SRCMEM.log.push({word:item.word,isOld:isOld,recog:r,recogOk:r===isOld,rt:rt,source:null,srcOk:false});
        if(!hit){document.removeEventListener('keydown',kh);next();return;}
        step=1;$('srcmemInstruct').textContent='Which side? F=LEFT  J=RIGHT';
        $('srcmemLeft').style.borderColor='rgba(212,180,86,0.3)';$('srcmemRight').style.borderColor='rgba(212,180,86,0.3)';
      }else{
        var s=e.key==='f'||e.key==='F'?'left':e.key==='j'||e.key==='J'?'right':null;
        if(!s)return;e.preventDefault();
        var ok=s===item.source;if(ok)_SRCMEM.srcCorrect++;
        _SRCMEM.log[_SRCMEM.log.length-1].source=s;_SRCMEM.log[_SRCMEM.log.length-1].srcOk=ok;
        var fb=$('srcmemFeedback');fb.textContent=ok?'correct':'wrong -- was '+(item.source||'?');fb.className='feedback '+(ok?'ok':'err');
        document.removeEventListener('keydown',kh);setTimeout(next,400);
      }
    };document.addEventListener('keydown',kh);
  }next();
}
function srcmemEnd(){
  _SRCMEM.active=false;$('srcmemStimPhase').style.display='none';$('srcmemProgressBar').style.width='100%';
  if(_SRCMEM.isPractice){$('pcStats').innerHTML='SRC ACC <span>'+_SRCMEM.srcCorrect+'</span>';hideAll();$('practiceComplete').style.display='flex';return;}
  window._srcmem_log=_SRCMEM.log;$('exportBtn').disabled=false;
  var nOld=_SRCMEM.items.length,nNew=_SRCMEM.foils.length;
  var dp=(_SRCMEM.hits/nOld-_SRCMEM.fas/nNew).toFixed(2);
  var srcAcc=_SRCMEM.hits?(_SRCMEM.srcCorrect/_SRCMEM.hits*100).toFixed(0)+'%':'--';
  $('srcmemMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+dp+'</div><div class="vm-lbl">Item d\'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+srcAcc+'</div><div class="vm-lbl">Source Accuracy</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+_SRCMEM.hits+'/'+nOld+'</div><div class="vm-lbl">Hits</div></div>';
  $('srcmemResultsPhase').style.display='block';updateSidebar();
}
function srcmemExportCSV(){
  var log=window._srcmem_log;if(!log)return;
  var blob=new Blob(['word,is_old,recog_correct,source,src_correct,rt_ms\n'+log.map(function(r){return[r.word,r.isOld?1:0,r.recogOk?1:0,r.source||'',r.srcOk?1:0,r.rt].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='srcmem_'+Date.now()+'.csv';a.click();
}

// ══ BNT ════════════════════════════════════════════════
var _BNT=null;
var BNT_ITEMS=[
  {name:'bed',sem:'something you sleep in',phon:'starts with B',shape:'bed'},
  {name:'tree',sem:'a tall plant with leaves',phon:'starts with T',shape:'tree'},
  {name:'pencil',sem:'used for writing',phon:'starts with P',shape:'pencil'},
  {name:'house',sem:'a place people live',phon:'starts with H',shape:'house'},
  {name:'umbrella',sem:'keeps you dry in rain',phon:'starts with U',shape:'umbrella'},
  {name:'comb',sem:'used to style hair',phon:'starts with C',shape:'comb'},
  {name:'ladder',sem:'used to climb up',phon:'starts with L',shape:'ladder'},
  {name:'anchor',sem:'keeps a boat in place',phon:'starts with A',shape:'anchor'},
  {name:'volcano',sem:'a mountain that erupts',phon:'starts with V',shape:'volcano'},
  {name:'stethoscope',sem:'used by doctors to listen',phon:'starts with ST',shape:'stethoscope'},
  {name:'pyramid',sem:'ancient Egyptian structure',phon:'starts with P',shape:'pyramid'},
  {name:'accordion',sem:'a musical instrument with bellows',phon:'starts with AC',shape:'accordion'},
  {name:'hammock',sem:'hung between trees for resting',phon:'starts with H',shape:'hammock'},
  {name:'compass',sem:'used for navigation',phon:'starts with C',shape:'compass'},
  {name:'abacus',sem:'counting frame with beads',phon:'starts with AB',shape:'abacus'}
];
function bntDraw(item){
  var cvs=$('bntCanvas'),ctx=cvs.getContext('2d'),W=220,H=160,cx=W/2,cy=H/2;
  ctx.clearRect(0,0,W,H);ctx.fillStyle='#f5f0e8';ctx.fillRect(0,0,W,H);
  ctx.strokeStyle='#2a1a0a';ctx.lineWidth=2;ctx.lineCap='round';ctx.lineJoin='round';
  var shapes={
    bed:function(){ctx.fillStyle='#8B7355';ctx.fillRect(40,80,140,50);ctx.fillRect(30,62,28,68);ctx.fillRect(162,62,28,68);ctx.fillStyle='#a08868';ctx.fillRect(40,75,140,12);},
    tree:function(){ctx.fillStyle='#3a6b35';ctx.beginPath();ctx.moveTo(cx,18);ctx.lineTo(cx-52,100);ctx.lineTo(cx+52,100);ctx.closePath();ctx.fill();ctx.fillStyle='#5c3d1e';ctx.fillRect(cx-8,100,16,42);},
    pencil:function(){ctx.fillStyle='#f5c842';ctx.fillRect(82,38,20,100);ctx.fillStyle='#e0a0a0';ctx.fillRect(82,34,20,10);ctx.fillStyle='#f5f0e8';ctx.beginPath();ctx.moveTo(82,138);ctx.lineTo(92,155);ctx.lineTo(102,138);ctx.fill();},
    house:function(){ctx.fillStyle='#c8503c';ctx.beginPath();ctx.moveTo(cx,28);ctx.lineTo(cx-65,80);ctx.lineTo(cx+65,80);ctx.closePath();ctx.fill();ctx.fillStyle='#d4b456';ctx.fillRect(cx-55,80,110,70);ctx.fillStyle='#2a1a0a';ctx.fillRect(cx-15,112,30,38);ctx.fillRect(cx-40,90,24,24);ctx.fillRect(cx+16,90,24,24);},
    umbrella:function(){ctx.fillStyle='#5b9fda';ctx.beginPath();ctx.arc(cx,68,58,Math.PI,0);ctx.fill();ctx.strokeStyle='#2a1a0a';ctx.lineWidth=3;ctx.beginPath();ctx.moveTo(cx,68);ctx.lineTo(cx,140);ctx.lineTo(cx+20,150);ctx.stroke();},
    comb:function(){ctx.fillStyle='#4a3828';ctx.fillRect(38,70,144,18);for(var i=0;i<10;i++)ctx.fillRect(46+i*14,88,8,30);},
    ladder:function(){ctx.strokeStyle='#5c3d1e';ctx.lineWidth=6;ctx.beginPath();ctx.moveTo(72,18);ctx.lineTo(72,142);ctx.stroke();ctx.beginPath();ctx.moveTo(148,18);ctx.lineTo(148,142);ctx.stroke();for(var i=0;i<6;i++){ctx.beginPath();ctx.moveTo(72,32+i*20);ctx.lineTo(148,32+i*20);ctx.stroke();}},
    anchor:function(){ctx.strokeStyle='#4a6a8a';ctx.lineWidth=4;ctx.beginPath();ctx.arc(cx,58,22,0,Math.PI*2);ctx.stroke();ctx.beginPath();ctx.moveTo(cx,80);ctx.lineTo(cx,140);ctx.stroke();ctx.beginPath();ctx.moveTo(cx-28,126);ctx.arc(cx,126,28,Math.PI,0);ctx.stroke();ctx.beginPath();ctx.moveTo(cx-38,58);ctx.lineTo(cx+38,58);ctx.stroke();},
    volcano:function(){ctx.fillStyle='#8B7355';ctx.beginPath();ctx.moveTo(cx,22);ctx.lineTo(cx-82,142);ctx.lineTo(cx+82,142);ctx.closePath();ctx.fill();ctx.fillStyle='#e05c5c';ctx.beginPath();ctx.ellipse(cx,22,18,10,0,0,Math.PI*2);ctx.fill();},
    stethoscope:function(){ctx.strokeStyle='#2a2a2a';ctx.lineWidth=4;ctx.beginPath();ctx.arc(cx,100,26,0,Math.PI*2);ctx.stroke();ctx.beginPath();ctx.moveTo(cx-26,100);ctx.quadraticCurveTo(cx-60,100,cx-60,58);ctx.stroke();ctx.beginPath();ctx.moveTo(cx+26,100);ctx.quadraticCurveTo(cx+60,100,cx+60,58);ctx.stroke();ctx.beginPath();ctx.moveTo(cx-60,58);ctx.quadraticCurveTo(cx-60,28,cx,28);ctx.lineTo(cx,48);ctx.stroke();},
    pyramid:function(){ctx.fillStyle='#d4b456';ctx.beginPath();ctx.moveTo(cx,18);ctx.lineTo(cx-82,142);ctx.lineTo(cx+82,142);ctx.closePath();ctx.fill();ctx.strokeStyle='#8a7030';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(cx,18);ctx.lineTo(cx,142);ctx.stroke();ctx.beginPath();ctx.moveTo(cx-42,80);ctx.lineTo(cx+42,80);ctx.stroke();},
    accordion:function(){for(var i=0;i<6;i++){ctx.fillStyle=i%2===0?'#c8503c':'#e07070';ctx.fillRect(38+i*25,38,25,100);}ctx.fillStyle='#2a1a0a';ctx.fillRect(32,32,156,14);ctx.fillRect(32,124,156,14);},
    hammock:function(){ctx.strokeStyle='#8B7355';ctx.lineWidth=3;ctx.beginPath();ctx.moveTo(38,58);ctx.lineTo(38,142);ctx.stroke();ctx.beginPath();ctx.moveTo(182,58);ctx.lineTo(182,142);ctx.stroke();ctx.strokeStyle='#c8503c';ctx.lineWidth=4;ctx.beginPath();ctx.moveTo(38,78);ctx.quadraticCurveTo(cx,132,182,78);ctx.stroke();ctx.beginPath();ctx.moveTo(38,72);ctx.quadraticCurveTo(cx,52,182,72);ctx.stroke();},
    compass:function(){ctx.strokeStyle='#4a6a8a';ctx.lineWidth=2;ctx.beginPath();ctx.arc(cx,cy,52,0,Math.PI*2);ctx.stroke();for(var i=0;i<8;i++){var a=i*Math.PI/4,r1=46,r2=58;ctx.beginPath();ctx.moveTo(cx+Math.cos(a)*r1,cy+Math.sin(a)*r1);ctx.lineTo(cx+Math.cos(a)*r2,cy+Math.sin(a)*r2);ctx.stroke();}ctx.fillStyle='#e05c5c';ctx.beginPath();ctx.moveTo(cx,cy-38);ctx.lineTo(cx-6,cy);ctx.lineTo(cx,cy+8);ctx.lineTo(cx+6,cy);ctx.closePath();ctx.fill();ctx.fillStyle='#2a2a2a';ctx.beginPath();ctx.moveTo(cx,cy-8);ctx.lineTo(cx-6,cy);ctx.lineTo(cx,cy+38);ctx.lineTo(cx+6,cy);ctx.closePath();ctx.fill();},
    abacus:function(){ctx.strokeStyle='#5c3d1e';ctx.lineWidth=3;ctx.beginPath();ctx.rect(28,28,164,104);ctx.stroke();for(var row=0;row<5;row++){ctx.beginPath();ctx.moveTo(28,46+row*20);ctx.lineTo(192,46+row*20);ctx.strokeStyle='rgba(92,61,30,0.5)';ctx.lineWidth=2;ctx.stroke();for(var b=0;b<7;b++){ctx.beginPath();ctx.arc(42+b*22,46+row*20,7,0,Math.PI*2);ctx.fillStyle=row%2===0?'#d4b456':'#e05c5c';ctx.fill();}}}
  };
  if(shapes[item.shape])shapes[item.shape]();
}
function startBNT(isPractice){
  var items=isPractice?BNT_ITEMS.slice(0,5):BNT_ITEMS;
  _BNT={active:true,isPractice:isPractice,items:items,idx:0,spontaneous:0,semantic:0,phonemic:0,failures:0,log:[],cuedWith:null};
  hideAll();$('bntScreen').style.display='flex';$('bntPracticeBanner').style.display=isPractice?'block':'none';
  $('bntProgressBar').style.width='0%';$('bntStimPhase').style.display='flex';$('bntResultsPhase').style.display='none';
  $('si-task').textContent='BNT'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;bntNext();
}
function bntNext(){
  if(!_BNT.active)return;if(_BNT.idx>=_BNT.items.length){bntEnd();return;}
  var item=_BNT.items[_BNT.idx];
  $('bnt-trial').textContent=(_BNT.idx+1)+'/'+_BNT.items.length;$('bntProgressBar').style.width=(_BNT.idx/_BNT.items.length*100).toFixed(1)+'%';
  $('bnt-score').textContent=_BNT.spontaneous;$('bntCue').textContent='Which word names this object?';
  $('bntFeedback').textContent='';$('bntFeedback').className='feedback';
  bntDraw(item);
  // Choices: correct name + 3 foils from other BNT item names.
  var allNames=BNT_ITEMS.map(function(i){return i.name;});
  var foils=allNames.filter(function(n){return n!==item.name;}).sort(function(){return Math.random()-0.5;}).slice(0,3);
  var choices=foils.concat([item.name]).sort(function(){return Math.random()-0.5;});
  var box=$('bntChoices'); box.innerHTML='';
  var onset=performance.now(); var answered=false;
  function choose(word){
    if(answered)return; answered=true;
    var ok=word===item.name;
    if(ok)_BNT.spontaneous++;else _BNT.failures++;
    _BNT.log.push({item:item.name,response:word,correct:ok,rt:+(performance.now()-onset).toFixed(1)});
    Array.prototype.forEach.call(box.children,function(b){
      if(b._word===item.name)b.classList.add('flash-ok');
      else if(b._word===word)b.classList.add('flash-err');
      b.onclick=null;
    });
    var fb=$('bntFeedback');fb.textContent=ok?'correct':'this is a '+item.name;fb.className='feedback '+(ok?'ok':'err');
    try{ Trigger.send(ok?1:2,'BNT_resp',{item:item.name,correct:ok}); }catch(e){}
    _BNT.idx++;setTimeout(function(){if(_BNT.active)bntNext();},700);
  }
  choices.forEach(function(word,i){
    var btn=document.createElement('button');
    btn.className='fr-recog-btn'; btn._word=word;
    btn.style.cssText='min-width:120px;padding:12px 18px;';
    btn.innerHTML='<span class="fr-recog-key">'+(i+1)+'</span><span class="fr-recog-lbl" style="font-size:1.1rem;">'+word.toUpperCase()+'</span>';
    btn.onclick=function(){ choose(word); };
    box.appendChild(btn);
  });
  _BNT._choose=choose; _BNT._choices=choices;
  triggerFlash();
}
document.addEventListener('keydown',function bntChoiceKey(e){
  if(!_BNT||!_BNT.active||!_BNT._choices) return;
  if($('bntStimPhase').style.display==='none') return;
  if(e.target&&(e.target.tagName==='INPUT'||e.target.tagName==='TEXTAREA')) return;
  var n=parseInt(e.key,10);
  if(n>=1&&n<=_BNT._choices.length){ e.preventDefault(); _BNT._choose(_BNT._choices[n-1]); }
});
function bntEnd(){
  _BNT.active=false;$('bntStimPhase').style.display='none';$('bntProgressBar').style.width='100%';
  if(_BNT.isPractice){$('pcStats').innerHTML='CORRECT <span>'+_BNT.spontaneous+'</span>';hideAll();$('practiceComplete').style.display='flex';return;}
  window._bnt_log=_BNT.log;$('exportBtn').disabled=false;
  $('bntMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+_BNT.spontaneous+'/'+_BNT.items.length+'</div><div class="vm-lbl">Correct</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+_BNT.failures+'</div><div class="vm-lbl">Errors</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+((_BNT.spontaneous/_BNT.items.length*100).toFixed(0))+'%</div><div class="vm-lbl">Accuracy</div></div>';
  $('bntResultsPhase').style.display='block';updateSidebar();
}
function bntExportCSV(){
  var log=window._bnt_log;if(!log)return;
  var blob=new Blob(['item,response,correct,rt_ms\n'+log.map(function(r){return[r.item,r.response,r.correct?1:0,r.rt!==undefined?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='bnt_'+Date.now()+'.csv';a.click();
}

// ══ FER ════════════════════════════════════════════════
var _FER=null;
var FER_EMOTIONS=['happy','sad','angry','fearful','disgusted','surprised'];
var FER_CFG={happy:{brow:0,mouth:1,lid:0,extra:''},sad:{brow:-1,mouth:-1,lid:1,extra:'tear'},angry:{brow:-2,mouth:-1,lid:2,extra:''},fearful:{brow:2,mouth:-2,lid:0,extra:''},disgusted:{brow:-1,mouth:-2,lid:1,extra:'wrinkle'},surprised:{brow:2,mouth:2,lid:0,extra:''}};
function ferDraw(emotion){
  var cvs=$('ferCanvas'),ctx=cvs.getContext('2d'),W=200,H=200,cx=100,cy=100;
  ctx.clearRect(0,0,W,H);ctx.fillStyle='#f5f0e8';ctx.fillRect(0,0,W,H);
  var cfg=FER_CFG[emotion];
  ctx.fillStyle='#f0d0b0';ctx.beginPath();ctx.ellipse(cx,cy,72,88,0,0,Math.PI*2);ctx.fill();
  ctx.strokeStyle='#8a6040';ctx.lineWidth=1.5;ctx.stroke();
  // Eyes
  var ey=cy-18,ew=16,eh=[14,10,7][Math.min(2,Math.max(0,cfg.lid))];
  [-28,28].forEach(function(ex){
    ctx.fillStyle='#f8f4ee';ctx.beginPath();ctx.ellipse(cx+ex,ey,ew,eh,0,0,Math.PI*2);ctx.fill();ctx.strokeStyle='#2a1a0a';ctx.lineWidth=1.2;ctx.stroke();
    ctx.fillStyle='#2a1a0a';ctx.beginPath();ctx.arc(cx+ex,ey,6,0,Math.PI*2);ctx.fill();
    ctx.fillStyle='rgba(255,255,255,0.7)';ctx.beginPath();ctx.arc(cx+ex+3,ey-3,2,0,Math.PI*2);ctx.fill();
  });
  // Brows
  var by=ey-20;
  [-28,28].forEach(function(ex,i){
    var tilt=(i===0?1:-1)*cfg.brow*0.2;var lift=cfg.brow*(-5);
    ctx.beginPath();ctx.moveTo(cx+ex-14,by+lift+Math.sin(tilt)*8);ctx.lineTo(cx+ex+14,by+lift-Math.sin(tilt)*8);
    ctx.strokeStyle='#4a2a10';ctx.lineWidth=3;ctx.stroke();
  });
  // Mouth
  var my2=cy+42,curve=cfg.mouth*14;
  ctx.beginPath();ctx.moveTo(cx-24,my2);ctx.quadraticCurveTo(cx,my2+curve,cx+24,my2);
  if(Math.abs(cfg.mouth)>=2){ctx.lineTo(cx+24,my2+8);ctx.quadraticCurveTo(cx,my2+curve+6,cx-24,my2+8);ctx.closePath();ctx.fillStyle=cfg.mouth>0?'#e07070':'#2a0808';ctx.fill();}
  ctx.strokeStyle='#4a2a10';ctx.lineWidth=2;ctx.stroke();
  // Nose
  ctx.beginPath();ctx.moveTo(cx,cy-4);ctx.lineTo(cx-7,cy+11);ctx.lineTo(cx+7,cy+11);ctx.strokeStyle='rgba(100,60,20,0.25)';ctx.lineWidth=1;ctx.stroke();
  // Extra
  if(cfg.extra==='tear'){ctx.fillStyle='rgba(91,159,218,0.7)';ctx.beginPath();ctx.ellipse(cx-28+8,ey+20,4,7,0,0,Math.PI*2);ctx.fill();}
  if(cfg.extra==='wrinkle'){ctx.strokeStyle='rgba(100,60,20,0.3)';ctx.lineWidth=1;[[cx-20,cy-8,cx-30,cy+4],[cx+20,cy-8,cx+30,cy+4]].forEach(function(l){ctx.beginPath();ctx.moveTo(l[0],l[1]);ctx.lineTo(l[2],l[3]);ctx.stroke();});}
}
function startFER(isPractice){
  var N=taskTrials('FER',8,36,isPractice);var items=[];for(var i=0;i<N;i++)items.push(FER_EMOTIONS[i%6]);items.sort(function(){return Math.random()-0.5;});
  _FER={active:true,isPractice:isPractice,items:items,idx:0,correct:0,byEmotion:{}};FER_EMOTIONS.forEach(function(e){_FER.byEmotion[e]={c:0,t:0};});
  hideAll();$('ferScreen').style.display='flex';$('ferPracticeBanner').style.display=isPractice?'block':'none';
  $('ferProgressBar').style.width='0%';$('ferStimPhase').style.display='flex';$('ferResultsPhase').style.display='none';
  $('si-task').textContent='FER'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;ferNext();
}
function ferNext(){
  if(!_FER.active)return;if(_FER.idx>=_FER.items.length){ferEnd();return;}
  var em=_FER.items[_FER.idx];
  $('fer-trial').textContent=(_FER.idx+1)+'/'+_FER.items.length;$('ferProgressBar').style.width=(_FER.idx/_FER.items.length*100).toFixed(1)+'%';$('fer-score').textContent=_FER.correct;
  $('ferFeedback').textContent='';$('ferFeedback').className='feedback';ferDraw(em);triggerFlash();
  var pool=FER_EMOTIONS.filter(function(e){return e!==em;}).sort(function(){return Math.random()-0.5;});
  var opts=[em].concat(pool.slice(0,5)).sort(function(){return Math.random()-0.5;});
  var od=$('ferOptions');od.innerHTML='';
  opts.forEach(function(opt){
    var btn=document.createElement('button');btn.textContent=opt.toUpperCase();
    btn.style.cssText='background:#0a1620;border:1px solid #2a4060;color:var(--mid);font-family:"Source Code Pro",monospace;font-size:0.75rem;padding:8px 4px;border-radius:3px;cursor:pointer;';
    btn.onmouseenter=function(){btn.style.borderColor='var(--gold)';btn.style.color='var(--gold)';};
    btn.onmouseleave=function(){if(!btn.dataset.c){btn.style.borderColor='#2a4060';btn.style.color='var(--mid)';}};
    btn.onclick=function(){if(!_FER.active||btn.dataset.c)return;
      var ok=opt===em;if(ok)_FER.correct++;_FER.byEmotion[em].t++;if(ok)_FER.byEmotion[em].c++;
      od.querySelectorAll('button').forEach(function(b){b.dataset.c='1';b.style.pointerEvents='none';if(b.textContent===em.toUpperCase()){b.style.borderColor='#81c784';b.style.color='#81c784';}else if(b===btn&&!ok){b.style.borderColor='#e05c5c';b.style.color='#e05c5c';}});
      var fb=$('ferFeedback');fb.textContent=ok?'correct':'wrong -- '+em;fb.className='feedback '+(ok?'ok':'err');_FER.idx++;setTimeout(function(){if(_FER.active)ferNext();},600);};
    od.appendChild(btn);});
}
function ferEnd(){
  _FER.active=false;$('ferStimPhase').style.display='none';$('ferProgressBar').style.width='100%';
  if(_FER.isPractice){$('pcStats').innerHTML='CORRECT <span>'+_FER.correct+'</span>';hideAll();$('practiceComplete').style.display='flex';return;}
  window._fer_log=_FER.byEmotion;$('exportBtn').disabled=false;
  var acc=(_FER.correct/_FER.items.length*100).toFixed(0);
  var worst=Object.entries(_FER.byEmotion).filter(function(kv){return kv[1].t>0;}).sort(function(a,b){return a[1].c/a[1].t-b[1].c/b[1].t;})[0];
  $('ferMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+_FER.correct+'/'+_FER.items.length+'</div><div class="vm-lbl">Correct</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+acc+'%</div><div class="vm-lbl">Accuracy</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(worst?worst[0]:'--')+'</div><div class="vm-lbl">Hardest</div></div>';
  $('ferResultsPhase').style.display='block';updateSidebar();
}
function ferExportCSV(){
  var log=window._fer_log;if(!log)return;
  var rows=['emotion,correct,total'];Object.entries(log).forEach(function(kv){rows.push(kv[0]+','+kv[1].c+','+kv[1].t);});
  var blob=new Blob([rows.join('\n')],{type:'text/csv'});var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='fer_'+Date.now()+'.csv';a.click();
}

// ══ TOJ ════════════════════════════════════════════════
var _TOJ=null;
function startTOJ(isPractice){
  _TOJ={active:true,isPractice:isPractice,trial:0,maxTrials:isPractice?8:80,soa:150,step:30,reversals:0,soaHist:[],log:[],correct:0,_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_TOJ._timers.push(t);return t;}
  _TOJ.T=T;_TOJ.clear=function(){_TOJ._timers.forEach(clearTimeout);_TOJ._timers=[];};
  hideAll();$('tojScreen').style.display='flex';$('tojPracticeBanner').style.display=isPractice?'block':'none';
  $('tojProgressBar').style.width='0%';$('tojStimPhase').style.display='flex';$('tojResultsPhase').style.display='none';
  $('si-task').textContent='TOJ'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;tojNext();
}
function tojNext(){
  if(!_TOJ.active)return;if(_TOJ.trial>=_TOJ.maxTrials){tojEnd();return;}
  _TOJ.trial++;$('toj-trial').textContent='Trial '+_TOJ.trial+'/'+_TOJ.maxTrials;
  $('toj-soa').textContent=tr('SOA ')+_TOJ.soa+'ms';$('tojProgressBar').style.width=(_TOJ.trial/_TOJ.maxTrials*100).toFixed(1)+'%';
  $('tojFeedback').textContent='';$('tojFeedback').className='feedback';
  var first=Math.random()<0.5?'left':'right';var L=$('tojLeft'),R=$('tojRight');
  L.style.background='#060d14';R.style.background='#060d14';L.style.borderColor='#1a2f44';R.style.borderColor='#1a2f44';
  var onset;var resp=false;
  var kh=function(e){if(!_TOJ.active)return;var r=e.key==='f'||e.key==='F'?'left':e.key==='j'||e.key==='J'?'right':null;if(!r)return;e.preventDefault();if(resp)return;resp=true;
    var rt=+(performance.now()-onset).toFixed(1);var ok=r===first;if(ok)_TOJ.correct++;
    var prev=_TOJ.soa;if(ok){_TOJ.soa=Math.max(16,_TOJ.soa-_TOJ.step);}else{_TOJ.soa=Math.min(400,_TOJ.soa+_TOJ.step*2);if(prev<_TOJ.soa)_TOJ.reversals++;}
    if(_TOJ.reversals>=4)_TOJ.step=Math.max(8,Math.floor(_TOJ.step/2));_TOJ.soaHist.push(_TOJ.soa);
    _TOJ.log.push({trial:_TOJ.trial,first:first,response:r,correct:ok,soa:prev,rt:rt});
    var fb=$('tojFeedback');fb.textContent=ok?rt+'ms correct':rt+'ms wrong';fb.className='feedback '+(ok?'ok':'err');
    L.style.background='#060d14';R.style.background='#060d14';document.removeEventListener('keydown',kh);
    _TOJ.T(tojNext,500);
  };
  var fe=first==='left'?L:R;fe.style.background='rgba(212,180,86,0.8)';fe.style.borderColor='var(--gold)';triggerFlash();
  _TOJ.T(function(){fe.style.background='#060d14';fe.style.borderColor='#1a2f44';
    _TOJ.T(function(){var se=first==='left'?R:L;se.style.background='rgba(212,180,86,0.8)';se.style.borderColor='var(--gold)';onset=performance.now();document.addEventListener('keydown',kh);
      _TOJ.T(function(){se.style.background='#060d14';se.style.borderColor='#1a2f44';
        _TOJ.T(function(){document.removeEventListener('keydown',kh);if(!resp)_TOJ.log.push({trial:_TOJ.trial,first:first,response:null,correct:false,soa:_TOJ.soa,rt:null});tojNext();},800);},100);},_TOJ.soa);},100);
}
function tojEnd(){
  _TOJ.clear();_TOJ.active=false;$('tojStimPhase').style.display='none';$('tojProgressBar').style.width='100%';
  if(_TOJ.isPractice){$('pcStats').innerHTML='ACC <span>'+(_TOJ.correct/_TOJ.trial*100).toFixed(0)+'%</span>';hideAll();$('practiceComplete').style.display='flex';return;}
  window._toj_log=_TOJ.log;$('exportBtn').disabled=false;
  var late=_TOJ.soaHist.slice(-20);var jnd=late.length?(late.reduce(function(a,b){return a+b;},0)/late.length).toFixed(0):'--';
  $('tojMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+jnd+'ms</div><div class="vm-lbl">Est. JND</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(_TOJ.correct/_TOJ.trial*100).toFixed(0)+'%</div><div class="vm-lbl">Accuracy</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+_TOJ.reversals+'</div><div class="vm-lbl">Reversals</div></div>';
  $('tojResultsPhase').style.display='block';updateSidebar();
}
function tojExportCSV(){
  var log=window._toj_log;if(!log)return;
  var blob=new Blob(['trial,first_side,response,correct,soa_ms,rt_ms\n'+log.map(function(r){return[r.trial,r.first,r.response||'',r.correct?1:0,r.soa,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='toj_'+Date.now()+'.csv';a.click();
}

// ══ GABOR PATCH — Contrast Detection Threshold ════════════
// Orientation 2AFC (left vs right of vertical), 3-down-1-up staircase on Michelson contrast.
// Threshold = geometric mean of reversal contrasts (after discarding first 2).
var _GABOR=null;
function startGabor(isPractice){
  _GABOR={
    active:true,isPractice:isPractice,
    trial:0,maxTrials:isPractice?8:120,
    // Stimulus params
    sf:5.0,         // cycles across the patch
    sigma:0.18,     // gaussian envelope, fraction of half-width
    tilt:15,        // tilt magnitude (degrees from vertical)
    phase:0,
    tFix:500,tStim:200,tITI:400,
    // Staircase
    logC:Math.log10(0.5),   // start at contrast 0.5
    step:0.15,              // log-units per step
    minStep:0.05,
    consec:0,
    lastDir:0,
    rule:{down:3,up:1},     // 3-down-1-up (~79.4%)
    revs:[],
    targetRevs:isPractice?4:8,
    log:[],correct:0,
    currentTilt:0,
    stimStart:0,
    accepting:false,
    _timers:[]
  };
  function T(fn,ms){var t=setTimeout(fn,ms);_GABOR._timers.push(t);return t;}
  _GABOR.T=T;
  _GABOR.clear=function(){_GABOR._timers.forEach(clearTimeout);_GABOR._timers=[];};

  hideAll();$('gaborScreen').style.display='flex';
  $('gaborPracticeBanner').style.display=isPractice?'block':'none';
  $('gaborProgressBar').style.width='0%';
  $('gaborStimPhase').style.display='flex';
  $('gaborResultsPhase').style.display='none';
  $('gabor-revs').textContent=tr('REV 0/')+_GABOR.targetRevs;
  $('si-task').textContent='GABOR'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;
  // Show neutral gray before first trial
  gaborClearStim();
  gaborNext();
}

function gaborClearStim(){
  var cv=$('gaborCanvas');if(!cv)return;
  var c=cv.getContext('2d');c.setTransform(1,0,0,1,0,0);
  c.fillStyle='#808080';c.fillRect(0,0,cv.width,cv.height);
}

function gaborRender(contrast,orientDeg){
  var cv=$('gaborCanvas');if(!cv)return;
  var c=cv.getContext('2d');c.setTransform(1,0,0,1,0,0);
  var w=cv.width,h=cv.height;
  var img=c.createImageData(w,h),d=img.data;
  var theta=orientDeg*Math.PI/180;
  var cosT=Math.cos(theta),sinT=Math.sin(theta);
  var sigmaPx=_GABOR.sigma*(w/2);
  var k=2*Math.PI*_GABOR.sf/w;
  var phaseRad=_GABOR.phase*Math.PI/180;
  var cx=w/2,cy=h/2;
  for(var y=0;y<h;y++){
    for(var x=0;x<w;x++){
      var dx=x-cx,dy=y-cy;
      var xr=dx*cosT+dy*sinT;
      var r2=dx*dx+dy*dy;
      var env=Math.exp(-r2/(2*sigmaPx*sigmaPx));
      var sine=Math.sin(k*xr+phaseRad);
      var lum=0.5+0.5*contrast*env*sine;
      var v=Math.max(0,Math.min(255,Math.round(lum*255)));
      var idx=(y*w+x)*4;
      d[idx]=v;d[idx+1]=v;d[idx+2]=v;d[idx+3]=255;
    }
  }
  c.putImageData(img,0,0);
}

function gaborUpdateStair(correct){
  var newDir=0;
  if(correct){
    _GABOR.consec++;
    if(_GABOR.consec>=_GABOR.rule.down){
      _GABOR.logC-=_GABOR.step;
      _GABOR.consec=0;
      newDir=-1;
    }
  }else{
    _GABOR.logC+=_GABOR.step;
    _GABOR.consec=0;
    newDir=+1;
  }
  var isRev=false;
  if(newDir!==0&&_GABOR.lastDir!==0&&newDir!==_GABOR.lastDir){
    _GABOR.revs.push(Math.pow(10,_GABOR.logC));
    isRev=true;
    // Halve step after first 2 reversals for refinement
    if(_GABOR.revs.length===2)_GABOR.step=Math.max(_GABOR.minStep,_GABOR.step/2);
  }
  if(newDir!==0)_GABOR.lastDir=newDir;
  // Clamp log contrast
  if(_GABOR.logC>0)_GABOR.logC=0;
  if(_GABOR.logC<-3)_GABOR.logC=-3;
  return isRev;
}

function gaborNext(){
  if(!_GABOR.active)return;
  // End conditions
  if(_GABOR.revs.length>=_GABOR.targetRevs||_GABOR.trial>=_GABOR.maxTrials){
    gaborEnd();return;
  }
  _GABOR.trial++;
  $('gabor-trial').textContent='Trial '+_GABOR.trial;
  var c=Math.pow(10,_GABOR.logC);
  $('gabor-contrast').textContent='c='+c.toFixed(4);
  $('gabor-revs').textContent=tr('REV ')+_GABOR.revs.length+'/'+_GABOR.targetRevs;
  $('gaborProgressBar').style.width=(_GABOR.revs.length/_GABOR.targetRevs*100).toFixed(1)+'%';
  $('gaborFeedback').textContent='';$('gaborFeedback').className='feedback';
  _GABOR.accepting=false;
  gaborClearStim();
  // Fixation period
  _GABOR.T(function(){
    if(!_GABOR.active)return;
    // Stimulus
    _GABOR.currentTilt=Math.random()<0.5?-1:+1;   // -1 left, +1 right
    var orient=90-_GABOR.currentTilt*_GABOR.tilt;  // 90° = vertical
    gaborRender(c,orient);
    _GABOR.stimStart=performance.now();
    triggerFlash();   // photic marker at patch onset (was missing for GABOR)
    _GABOR.accepting=true;
    // Stimulus offset → response window
    _GABOR.T(function(){
      if(!_GABOR.active)return;
      gaborClearStim();
      // Keep accepting input for up to 2 s post-offset
      _GABOR.T(function(){
        if(!_GABOR.active||!_GABOR.accepting)return;
        // Timeout = treat as wrong (no response)
        _GABOR.accepting=false;
        _GABOR.log.push({trial:_GABOR.trial,tilt:_GABOR.currentTilt===1?'right':'left',response:null,correct:false,contrast:c,rt:null});
        gaborUpdateStair(false);
        gaborNext();
      },2000);
    },_GABOR.tStim);
  },_GABOR.tFix);
}

function gaborHandle(e){
  if(!_GABOR||!_GABOR.active||!_GABOR.accepting)return;
  var k=e.key;var resp=(k==='f'||k==='F')?-1:(k==='j'||k==='J')?+1:0;
  if(resp===0)return;
  e.preventDefault();
  _GABOR.accepting=false;
  var rt=+(performance.now()-_GABOR.stimStart).toFixed(1);
  var ok=(resp===_GABOR.currentTilt);
  if(ok)_GABOR.correct++;
  var c=Math.pow(10,_GABOR.logC);
  var isRev=gaborUpdateStair(ok);
  _GABOR.log.push({trial:_GABOR.trial,tilt:_GABOR.currentTilt===1?'right':'left',response:resp===1?'right':'left',correct:ok,contrast:c,rt:rt,reversal:isRev});
  var fb=$('gaborFeedback');fb.textContent=ok?rt+'ms correct':rt+'ms wrong';
  fb.className='feedback '+(ok?'ok':'err');
  gaborClearStim();
  _GABOR.T(gaborNext,_GABOR.tITI);
}
document.addEventListener('keydown',gaborHandle);

function gaborThreshold(){
  // Geometric mean of reversals after discarding first 2 (for stability)
  var revs=_GABOR.revs;
  if(revs.length<3)return null;
  var skip=Math.min(2,revs.length-1);
  var used=revs.slice(skip);
  var sumLog=used.reduce(function(s,c){return s+Math.log10(c);},0);
  var meanLog=sumLog/used.length;
  var v=used.reduce(function(s,c){return s+Math.pow(Math.log10(c)-meanLog,2);},0)/used.length;
  return{threshold:Math.pow(10,meanLog),n:used.length,sdLog:Math.sqrt(v)};
}

function gaborEnd(){
  _GABOR.clear();_GABOR.active=false;_GABOR.accepting=false;
  gaborClearStim();
  $('gaborStimPhase').style.display='none';
  $('gaborProgressBar').style.width='100%';
  if(_GABOR.isPractice){
    var acc=_GABOR.trial?(_GABOR.correct/_GABOR.trial*100).toFixed(0):'--';
    $('pcStats').innerHTML='ACC <span>'+acc+'%</span>';
    hideAll();$('practiceComplete').style.display='flex';return;
  }
  window._gabor_log=_GABOR.log;
  window._gabor_summary={
    threshold:gaborThreshold(),
    reversals:_GABOR.revs.slice(),
    trials:_GABOR.trial,
    correct:_GABOR.correct
  };
  $('exportBtn').disabled=false;
  var r=gaborThreshold();
  var thrStr=r?r.threshold.toFixed(4):'--';
  var thrDet=r?'log SD '+r.sdLog.toFixed(2):'insufficient reversals';
  var acc=_GABOR.trial?(_GABOR.correct/_GABOR.trial*100).toFixed(0):'--';
  $('gaborMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+thrStr+'</div><div class="vm-lbl">Contrast Threshold</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(r?r.n:0)+'</div><div class="vm-lbl">Reversals used</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+acc+'%</div><div class="vm-lbl">Accuracy</div></div>'+
    '<div class="vrt-metric" style="font-size:0.7rem;color:var(--dim);">'+thrDet+'</div>';
  $('gaborResultsPhase').style.display='block';
  if(typeof updateSidebar==='function')updateSidebar();
}

function gaborExportCSV(){
  var log=window._gabor_log;if(!log)return;
  var s=window._gabor_summary||{};var r=s.threshold;
  var head='trial,tilt,response,correct,contrast,rt_ms,reversal\n';
  var rows=log.map(function(r){return[r.trial,r.tilt,r.response||'',r.correct?1:0,r.contrast.toFixed(6),r.rt!=null?r.rt:'',r.reversal?1:0].join(',');}).join('\n');
  var summary='\n\n# Threshold (geometric mean of reversals 3+): '+(r?r.threshold.toFixed(6):'NA')+
              '\n# Reversals used: '+(r?r.n:0)+
              '\n# log10 SD: '+(r?r.sdLog.toFixed(4):'NA')+
              '\n# Total trials: '+(s.trials||0)+
              '\n# Correct: '+(s.correct||0);
  var blob=new Blob([head+rows+summary],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='gabor_'+Date.now()+'.csv';a.click();
}

// Preview animation for the intro screen.
// Self-contained — does not depend on the anim-IIFE's getCtx/W/H/NAVY/animRAF.
// Renders a slowly drifting, breathing Gabor patch on the introAnim canvas.
var _gaborAnimRAF=null;
function animGabor(){
  if(_gaborAnimRAF){cancelAnimationFrame(_gaborAnimRAF);_gaborAnimRAF=null;}
  var canvas=document.getElementById('introAnim');
  if(!canvas)return;
  // Resize to match the standard intro-anim dimensions used by other tasks
  canvas.width=canvas.offsetWidth>0?canvas.offsetWidth:520;
  canvas.height=110;
  var ctx=canvas.getContext('2d');
  var W=canvas.width,H=canvas.height;
  var NAVY='#060d14',MID='rgba(138,180,208,0.5)';
  var t=0;
  function tick(){
    _gaborAnimRAF=requestAnimationFrame(tick);t++;
    if(!canvas.isConnected){cancelAnimationFrame(_gaborAnimRAF);_gaborAnimRAF=null;return;}
    ctx.fillStyle=NAVY;ctx.fillRect(0,0,W,H);
    // Centered square patch region — sized to fit the strip
    var size=Math.min(W,H)-14;
    var px=Math.floor((W-size)/2),py=Math.floor((H-size)/2);
    // Render gabor at coarse resolution for speed (step=2 → 50×50 cells)
    var step=2;
    var sigmaPx=0.32*(size/2);
    var k=2*Math.PI*4/size;
    var theta=(85+5*Math.sin(t*0.012))*Math.PI/180;
    var cosT=Math.cos(theta),sinT=Math.sin(theta);
    var contrast=0.5+0.3*Math.sin(t*0.025);
    var cx=size/2,cy=size/2;
    for(var y=0;y<size;y+=step){
      for(var x=0;x<size;x+=step){
        var dx=x-cx,dy=y-cy;
        var xr=dx*cosT+dy*sinT;
        var r2=dx*dx+dy*dy;
        var env=Math.exp(-r2/(2*sigmaPx*sigmaPx));
        var sine=Math.sin(k*xr+t*0.05);
        var lum=0.5+0.5*contrast*env*sine;
        var v=Math.max(0,Math.min(255,Math.round(lum*255)));
        ctx.fillStyle='rgb('+v+','+v+','+v+')';
        ctx.fillRect(px+x,py+y,step,step);
      }
    }
    ctx.font='9px "Source Code Pro",monospace';
    ctx.fillStyle=MID;ctx.textAlign='center';
    ctx.fillText('F = tilted left   ·   J = tilted right',W/2,H-5);
  }
  tick();
}
window.animGabor=animGabor;

// ══ CLOCK DRAWING TEST (CDT) ═══════════════════════════════
// Captures stroke-level (x,y,t) data + canvas image. Self-reported time set.
// Automatic timing metrics; visual scoring is left to a human reviewer.
var _CDT=null;
function startCDT(isPractice){
  _CDT={
    active:true,isPractice:isPractice,
    strokes:[],          // array of {points:[{x,y,t}], down:t, up:t}
    currentStroke:null,
    startTime:0,
    finished:false,
    timeInput:''
  };
  hideAll();$('cdtScreen').style.display='flex';
  $('cdtPracticeBanner').style.display=isPractice?'block':'none';
  $('cdtStimPhase').style.display='flex';
  $('cdtResultsPhase').style.display='none';
  $('cdtTimeInput').value='';
  $('si-task').textContent='CDT'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;
  cdtSetupCanvas();
  cdtClearCanvas();
  _CDT.startTime=performance.now();
  cdtTickElapsed();
}

function cdtSetupCanvas(){
  var cv=$('cdtCanvas');if(!cv)return;
  // Pointer-based: covers mouse + touch + pen
  cv.onpointerdown=cdtPointerDown;
  cv.onpointermove=cdtPointerMove;
  cv.onpointerup=cdtPointerUp;
  cv.onpointercancel=cdtPointerUp;
  cv.onpointerleave=function(e){ if(_CDT&&_CDT.currentStroke)cdtPointerUp(e); };
}

function cdtCanvasPos(e){
  var cv=$('cdtCanvas');var r=cv.getBoundingClientRect();
  return{x:(e.clientX-r.left)*(cv.width/r.width),y:(e.clientY-r.top)*(cv.height/r.height)};
}

function cdtPointerDown(e){
  if(!_CDT||!_CDT.active||_CDT.finished)return;
  e.preventDefault();
  var cv=$('cdtCanvas');try{cv.setPointerCapture(e.pointerId);}catch(_){}
  var p=cdtCanvasPos(e),t=+(performance.now()-_CDT.startTime).toFixed(1);
  _CDT.currentStroke={points:[{x:+p.x.toFixed(1),y:+p.y.toFixed(1),t:t}],down:t,up:null};
  var ctx=cv.getContext('2d');
  ctx.strokeStyle='#0a1520';ctx.lineWidth=2.2;ctx.lineCap='round';ctx.lineJoin='round';
  ctx.beginPath();ctx.moveTo(p.x,p.y);
}
function cdtPointerMove(e){
  if(!_CDT||!_CDT.currentStroke)return;
  e.preventDefault();
  var p=cdtCanvasPos(e),t=+(performance.now()-_CDT.startTime).toFixed(1);
  _CDT.currentStroke.points.push({x:+p.x.toFixed(1),y:+p.y.toFixed(1),t:t});
  var ctx=$('cdtCanvas').getContext('2d');
  ctx.lineTo(p.x,p.y);ctx.stroke();
}
function cdtPointerUp(e){
  if(!_CDT||!_CDT.currentStroke)return;
  var t=+(performance.now()-_CDT.startTime).toFixed(1);
  _CDT.currentStroke.up=t;
  _CDT.strokes.push(_CDT.currentStroke);
  _CDT.currentStroke=null;
  $('cdt-strokes').textContent='strokes: '+_CDT.strokes.length;
}

function cdtClearCanvas(){
  var cv=$('cdtCanvas');if(!cv)return;
  var ctx=cv.getContext('2d');
  ctx.fillStyle='#ffffff';ctx.fillRect(0,0,cv.width,cv.height);
  if(_CDT){
    _CDT.strokes=[];_CDT.currentStroke=null;
    $('cdt-strokes').textContent='strokes: 0';
  }
}

function cdtTickElapsed(){
  if(!_CDT||!_CDT.active||_CDT.finished)return;
  var s=((performance.now()-_CDT.startTime)/1000).toFixed(1);
  $('cdt-elapsed').textContent=s+'s';
  // Hard cap at 180 s
  if(parseFloat(s)>=180){cdtFinish();return;}
  setTimeout(cdtTickElapsed,100);
}

function cdtFinish(){
  if(!_CDT||_CDT.finished)return;
  _CDT.finished=true;_CDT.active=false;
  _CDT.timeInput=($('cdtTimeInput')||{}).value||'';
  var elapsed=+((performance.now()-_CDT.startTime)/1000).toFixed(2);
  // Compute summary metrics from strokes
  var totalPoints=0,totalDur=0,bbox={minX:Infinity,minY:Infinity,maxX:-Infinity,maxY:-Infinity};
  _CDT.strokes.forEach(function(st){
    totalPoints+=st.points.length;
    if(st.up!=null)totalDur+=(st.up-st.down);
    st.points.forEach(function(p){
      if(p.x<bbox.minX)bbox.minX=p.x;if(p.y<bbox.minY)bbox.minY=p.y;
      if(p.x>bbox.maxX)bbox.maxX=p.x;if(p.y>bbox.maxY)bbox.maxY=p.y;
    });
  });
  var bw=isFinite(bbox.minX)?(bbox.maxX-bbox.minX):0;
  var bh=isFinite(bbox.minY)?(bbox.maxY-bbox.minY):0;
  window._cdt_data={
    elapsed_s:elapsed,
    strokes:_CDT.strokes.length,
    points:totalPoints,
    pen_down_s:+(totalDur/1000).toFixed(2),
    bbox:{x:isFinite(bbox.minX)?+bbox.minX.toFixed(0):null,y:isFinite(bbox.minY)?+bbox.minY.toFixed(0):null,w:+bw.toFixed(0),h:+bh.toFixed(0)},
    self_reported_time:_CDT.timeInput,
    target_time:'11:10',
    stroke_log:_CDT.strokes
  };
  $('cdtStimPhase').style.display='none';
  if(_CDT.isPractice){
    hideAll();$('practiceComplete').style.display='flex';
    $('pcStats').innerHTML='STROKES <span>'+_CDT.strokes.length+'</span> · TIME <span>'+elapsed+'s</span>';
    return;
  }
  $('exportBtn').disabled=false;
  $('cdtMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+elapsed+'s</div><div class="vm-lbl">Total time</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+_CDT.strokes.length+'</div><div class="vm-lbl">Strokes</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+totalPoints+'</div><div class="vm-lbl">Sample points</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(_CDT.timeInput||'—')+'</div><div class="vm-lbl">Time drawn (self-report)</div></div>'+
    '<div class="vrt-metric" style="font-size:0.7rem;color:var(--dim);">Target was 11:10. Visual scoring (Shulman/Sunderland) requires manual review of the exported image.</div>';
  $('cdtResultsPhase').style.display='block';
  if(typeof updateSidebar==='function')updateSidebar();
}

function cdtExportJSON(){
  var d=window._cdt_data;if(!d)return;
  var blob=new Blob([JSON.stringify(d,null,2)],{type:'application/json'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='cdt_'+Date.now()+'.json';a.click();
}
function cdtExportPNG(){
  var cv=$('cdtCanvas');if(!cv)return;
  cv.toBlob(function(blob){
    var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='cdt_'+Date.now()+'.png';a.click();
  });
}

// Intro preview: a hand-drawn-looking clock
function animCDT(){
  var canvas=document.getElementById('introAnim');if(!canvas)return;
  canvas.width=canvas.offsetWidth>0?canvas.offsetWidth:520;canvas.height=110;
  var ctx=canvas.getContext('2d');var W=canvas.width,H=canvas.height;
  var t=0;var animRAF;
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;
    if(!canvas.isConnected){cancelAnimationFrame(animRAF);return;}
    ctx.fillStyle='#060d14';ctx.fillRect(0,0,W,H);
    var cx=W/2,cy=H/2,r=Math.min(W,H)/2-12;
    ctx.strokeStyle='#d4b456';ctx.lineWidth=1.6;
    ctx.beginPath();ctx.arc(cx,cy,r,0,Math.PI*2);ctx.stroke();
    // Numbers
    ctx.fillStyle='#d4b456';ctx.font='10px "EB Garamond",serif';ctx.textAlign='center';ctx.textBaseline='middle';
    for(var i=1;i<=12;i++){
      var a=(i-3)*Math.PI/6;
      ctx.fillText(String(i),cx+Math.cos(a)*(r-10),cy+Math.sin(a)*(r-10));
    }
    // Hour hand at 11 (with subtle sweep), minute at 2 (10 past)
    var hourA=((11-3)+10/60)*Math.PI/6;
    var minA=(2-3+(t*0.005)%6)*Math.PI/6;
    ctx.strokeStyle='#d4b456';ctx.lineWidth=2;
    ctx.beginPath();ctx.moveTo(cx,cy);ctx.lineTo(cx+Math.cos(hourA)*(r*0.5),cy+Math.sin(hourA)*(r*0.5));ctx.stroke();
    ctx.lineWidth=1.2;
    ctx.beginPath();ctx.moveTo(cx,cy);ctx.lineTo(cx+Math.cos(minA)*(r*0.75),cy+Math.sin(minA)*(r*0.75));ctx.stroke();
    ctx.fillStyle='#d4b456';ctx.beginPath();ctx.arc(cx,cy,1.6,0,Math.PI*2);ctx.fill();
    ctx.fillStyle='rgba(138,180,208,0.5)';ctx.font='8px "Source Code Pro",monospace';ctx.textAlign='left';
    ctx.fillText('draw clock · 10 past 11',8,H-6);
  }
  tick();
}
window.animCDT=animCDT;

// ══ STAR CANCELLATION ═════════════════════════════════════
// 52 small target stars among large stars, letters, and words.
// Score: total found, L/R asymmetry index for hemispatial neglect.
var _STAR=null;
function starGenerateArray(W,H){
  // Deterministic-ish layout but with slight randomization per session.
  // Targets: 52 small stars. Distractors: ~24 large stars + ~24 letters + ~10 short words.
  // Targets balanced L vs R (26 each) and across rows.
  var items=[];
  var marginX=30,marginY=25;
  var cellW=(W-2*marginX)/12;       // 12 cols
  var cellH=(H-2*marginY)/8;        // 8 rows
  // Build a grid of 96 candidate slots
  var slots=[];
  for(var r=0;r<8;r++) for(var c=0;c<12;c++){
    var jx=(Math.random()-0.5)*cellW*0.4;
    var jy=(Math.random()-0.5)*cellH*0.4;
    slots.push({x:marginX+cellW*(c+0.5)+jx,y:marginY+cellH*(r+0.5)+jy});
  }
  // Shuffle
  for(var i=slots.length-1;i>0;i--){var j=Math.floor(Math.random()*(i+1));var s=slots[i];slots[i]=slots[j];slots[j]=s;}
  // Pick 26 left-side targets and 26 right-side targets from the shuffle
  var midX=W/2;
  var leftSlots=slots.filter(function(s){return s.x<midX;});
  var rightSlots=slots.filter(function(s){return s.x>=midX;});
  var targets=leftSlots.slice(0,26).concat(rightSlots.slice(0,26));
  targets.forEach(function(s,i){items.push({type:'target',x:s.x,y:s.y,id:'t'+i,clicked:false,side:s.x<midX?'L':'R'});});
  // Use remaining slots for distractors
  var remaining=leftSlots.slice(26).concat(rightSlots.slice(26));
  // Shuffle
  for(var i=remaining.length-1;i>0;i--){var j=Math.floor(Math.random()*(i+1));var s=remaining[i];remaining[i]=remaining[j];remaining[j]=s;}
  var letters='ABCDEFGHIJKLMNOPQRSTUVWXYZ';
  var words=['cat','sun','log','box','fig','hat','jam','pen','red','top'];
  remaining.slice(0,46).forEach(function(s,i){
    var kind=i%3;
    if(kind===0)items.push({type:'bigstar',x:s.x,y:s.y});
    else if(kind===1)items.push({type:'letter',x:s.x,y:s.y,text:letters[Math.floor(Math.random()*letters.length)]});
    else items.push({type:'word',x:s.x,y:s.y,text:words[Math.floor(Math.random()*words.length)]});
  });
  return items;
}

function starDrawAll(){
  var cv=$('starCanvas');if(!cv)return;
  var ctx=cv.getContext('2d');
  ctx.fillStyle='#ffffff';ctx.fillRect(0,0,cv.width,cv.height);
  _STAR.items.forEach(function(it){
    if(it.type==='target')starDrawStar(ctx,it.x,it.y,5,it.clicked?'#c8b96b':'#0a1520');
    else if(it.type==='bigstar')starDrawStar(ctx,it.x,it.y,10,'#0a1520');
    else if(it.type==='letter'){ctx.fillStyle='#0a1520';ctx.font='18px serif';ctx.textAlign='center';ctx.textBaseline='middle';ctx.fillText(it.text,it.x,it.y);}
    else if(it.type==='word'){ctx.fillStyle='#0a1520';ctx.font='14px serif';ctx.textAlign='center';ctx.textBaseline='middle';ctx.fillText(it.text,it.x,it.y);}
  });
}
function starDrawStar(ctx,cx,cy,size,color){
  ctx.fillStyle=color;ctx.beginPath();
  for(var i=0;i<10;i++){
    var a=-Math.PI/2+i*Math.PI/5;
    var rr=(i%2===0)?size:size*0.4;
    var px=cx+Math.cos(a)*rr,py=cy+Math.sin(a)*rr;
    if(i===0)ctx.moveTo(px,py);else ctx.lineTo(px,py);
  }
  ctx.closePath();ctx.fill();
}

function starHandleClick(e){
  if(!_STAR||!_STAR.active)return;
  var cv=$('starCanvas');var r=cv.getBoundingClientRect();
  var x=(e.clientX-r.left)*(cv.width/r.width);
  var y=(e.clientY-r.top)*(cv.height/r.height);
  // Find nearest target within tolerance
  var hit=null,hitD=Infinity;
  _STAR.items.forEach(function(it){
    if(it.type!=='target'||it.clicked)return;
    var d=Math.hypot(it.x-x,it.y-y);
    if(d<14&&d<hitD){hit=it;hitD=d;}
  });
  if(hit){
    hit.clicked=true;hit.clickTime=+(performance.now()-_STAR.startTime).toFixed(1);
    _STAR.clicks.push({id:hit.id,side:hit.side,x:+x.toFixed(1),y:+y.toFixed(1),t:hit.clickTime});
    var found=_STAR.items.filter(function(it){return it.type==='target'&&it.clicked;}).length;
    $('star-found').textContent='found: '+found+' / 52';
    starDrawAll();
    if(found>=52)starFinish();
  }
}

function starStartTick(){
  if(!_STAR||!_STAR.active)return;
  var s=((performance.now()-_STAR.startTime)/1000).toFixed(1);
  $('star-elapsed').textContent=s+'s';
  if(parseFloat(s)>=180){starFinish();return;}
  setTimeout(starStartTick,150);
}

function startStar(isPractice){
  var cv=$('starCanvas');if(!cv)return;
  _STAR={
    active:true,isPractice:isPractice,
    items:starGenerateArray(cv.width,cv.height),
    clicks:[],
    startTime:performance.now()
  };
  hideAll();$('starScreen').style.display='flex';
  $('starPracticeBanner').style.display=isPractice?'block':'none';
  $('starStimPhase').style.display='flex';
  $('starResultsPhase').style.display='none';
  $('star-found').textContent='found: 0 / 52';
  $('si-task').textContent='STAR'+(isPractice?' (PRAC)':'');
  $('exportBtn').disabled=true;
  cv.onclick=starHandleClick;
  starDrawAll();
  starStartTick();
}

function starFinish(){
  if(!_STAR||!_STAR.active)return;
  _STAR.active=false;
  var cv=$('starCanvas');if(cv)cv.onclick=null;
  var found=_STAR.items.filter(function(it){return it.type==='target'&&it.clicked;}).length;
  var foundL=_STAR.items.filter(function(it){return it.type==='target'&&it.clicked&&it.side==='L';}).length;
  var foundR=_STAR.items.filter(function(it){return it.type==='target'&&it.clicked&&it.side==='R';}).length;
  var missedL=26-foundL,missedR=26-foundR;
  var asym=(foundL+foundR)>0?((foundR-foundL)/(foundR+foundL)).toFixed(3):'0.000';  // positive = right bias = left neglect
  var elapsed=+((performance.now()-_STAR.startTime)/1000).toFixed(2);
  window._star_data={
    total_found:found,
    left_found:foundL,right_found:foundR,
    left_missed:missedL,right_missed:missedR,
    asymmetry_index:parseFloat(asym),     // (R-L)/(R+L). >0 → left neglect suspected.
    elapsed_s:elapsed,
    clicks:_STAR.clicks
  };
  $('starStimPhase').style.display='none';
  if(_STAR.isPractice){
    hideAll();$('practiceComplete').style.display='flex';
    $('pcStats').innerHTML='FOUND <span>'+found+'/52</span> · TIME <span>'+elapsed+'s</span>';
    return;
  }
  $('exportBtn').disabled=false;
  var neglectFlag='';
  if(parseFloat(asym)>=0.20)neglectFlag='<div style="color:#e08b3b;font-size:0.75rem;margin-top:6px;">Strong R&gt;L asymmetry — consistent with possible LEFT hemispatial neglect.</div>';
  else if(parseFloat(asym)<=-0.20)neglectFlag='<div style="color:#e08b3b;font-size:0.75rem;margin-top:6px;">Strong L&gt;R asymmetry — consistent with possible RIGHT hemispatial neglect.</div>';
  $('starMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+found+' / 52</div><div class="vm-lbl">Total targets found</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+foundL+' / 26</div><div class="vm-lbl">Left side</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+foundR+' / 26</div><div class="vm-lbl">Right side</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+asym+'</div><div class="vm-lbl">Asymmetry (R-L)/(R+L)</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+elapsed+'s</div><div class="vm-lbl">Elapsed</div></div>'+
    neglectFlag;
  $('starResultsPhase').style.display='block';
  if(typeof updateSidebar==='function')updateSidebar();
}

function starExportCSV(){
  var d=window._star_data;if(!d)return;
  var summary='# total_found,left_found,right_found,left_missed,right_missed,asymmetry,elapsed_s\n'+
              [d.total_found,d.left_found,d.right_found,d.left_missed,d.right_missed,d.asymmetry_index,d.elapsed_s].join(',')+'\n\n'+
              'click_id,side,x,y,t_ms\n'+
              d.clicks.map(function(c){return[c.id,c.side,c.x,c.y,c.t].join(',');}).join('\n');
  var blob=new Blob([summary],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='star_'+Date.now()+'.csv';a.click();
}

// Intro preview: scrolling field of stars and letters with a few "clicked"
function animStar(){
  var canvas=document.getElementById('introAnim');if(!canvas)return;
  canvas.width=canvas.offsetWidth>0?canvas.offsetWidth:520;canvas.height=110;
  var ctx=canvas.getContext('2d');var W=canvas.width,H=canvas.height;
  // Pre-place items
  var items=[];
  for(var i=0;i<20;i++)items.push({type:'t',x:Math.random()*W,y:10+Math.random()*(H-20),found:Math.random()<0.4});
  for(var i=0;i<8;i++)items.push({type:'d',x:Math.random()*W,y:10+Math.random()*(H-20),ch:String.fromCharCode(65+Math.floor(Math.random()*26))});
  var t=0;var animRAF;
  function tick(){
    animRAF=requestAnimationFrame(tick);t++;
    if(!canvas.isConnected){cancelAnimationFrame(animRAF);return;}
    ctx.fillStyle='#060d14';ctx.fillRect(0,0,W,H);
    items.forEach(function(it){
      if(it.type==='t'){
        var size=4;var color=it.found?'#d4b456':'rgba(138,180,208,0.55)';
        ctx.fillStyle=color;ctx.beginPath();
        for(var i=0;i<10;i++){
          var a=-Math.PI/2+i*Math.PI/5;
          var rr=(i%2===0)?size:size*0.4;
          var px=it.x+Math.cos(a)*rr,py=it.y+Math.sin(a)*rr;
          if(i===0)ctx.moveTo(px,py);else ctx.lineTo(px,py);
        }
        ctx.closePath();ctx.fill();
      } else {
        ctx.fillStyle='rgba(138,180,208,0.4)';ctx.font='10px serif';ctx.textAlign='center';ctx.textBaseline='middle';
        ctx.fillText(it.ch,it.x,it.y);
      }
    });
    // Periodically "find" another target
    if(t%80===0){
      var unfound=items.filter(function(it){return it.type==='t'&&!it.found;});
      if(unfound.length)unfound[Math.floor(Math.random()*unfound.length)].found=true;
      else items.forEach(function(it){if(it.type==='t')it.found=Math.random()<0.4;});
    }
    ctx.fillStyle='rgba(138,180,208,0.5)';ctx.font='8px "Source Code Pro",monospace';ctx.textAlign='left';
    ctx.fillText('click every small star · ignore distractors',8,H-6);
  }
  tick();
}
window.animStar=animStar;

// ══ MATRIX ════════════════════════════════════════════════
var _MATRIX=null;
var SHAPES=['circle','square','triangle','diamond','cross'];
var SIZES=[10,16,22];var FILLS=['solid','outline','dot'];
function matrixMake(diff){
  var rule=['size','shape','fill','count'][Math.min(diff,3)];
  var sb=Math.floor(Math.random()*5),szb=Math.floor(Math.random()*3),fb=Math.floor(Math.random()*3);
  var mat=[];for(var r=0;r<3;r++){var row=[];for(var c=0;c<3;c++){row.push({sh:SHAPES[(sb+(rule==='shape'?r:0))%5],sz:SIZES[(szb+(rule==='size'?c:0))%3],fi:FILLS[(fb+(rule==='fill'?r+c:0))%3],cnt:rule==='count'?c+1:1});}mat.push(row);}
  var ans=mat[2][2];var foils=[];
  for(var i=0;i<5;i++)foils.push({sh:SHAPES[(sb+i+1)%5],sz:SIZES[(szb+i)%3],fi:FILLS[(fb+i)%3],cnt:1});
  foils.push(ans);foils.sort(function(){return Math.random()-0.5;});
  return{mat:mat,ans:ans,foils:foils,ci:foils.indexOf(ans),rule:rule};
}
function matrixDrawCell(ctx,cell,x,y,w,h,hl){
  ctx.fillStyle=hl?'rgba(212,180,86,0.15)':'#0a1620';ctx.fillRect(x,y,w,h);
  ctx.strokeStyle=hl?'rgba(212,180,86,0.5)':'rgba(138,180,208,0.25)';ctx.lineWidth=1;ctx.strokeRect(x,y,w,h);
  if(!cell)return;
  var cx2=x+w/2,cy2=y+h/2,r=cell.sz/2;
  ctx.strokeStyle='#d4b456';ctx.lineWidth=1.5;
  var draw=function(ox,oy){
    ctx.fillStyle=cell.fi==='solid'?'rgba(212,180,86,0.7)':'transparent';
    ctx.beginPath();
    if(cell.sh==='circle')ctx.arc(ox,oy,r,0,Math.PI*2);
    else if(cell.sh==='square')ctx.rect(ox-r,oy-r,r*2,r*2);
    else if(cell.sh==='triangle'){ctx.moveTo(ox,oy-r);ctx.lineTo(ox+r,oy+r);ctx.lineTo(ox-r,oy+r);ctx.closePath();}
    else if(cell.sh==='diamond'){ctx.moveTo(ox,oy-r);ctx.lineTo(ox+r,oy);ctx.lineTo(ox,oy+r);ctx.lineTo(ox-r,oy);ctx.closePath();}
    else{ctx.moveTo(ox-r,oy-r*0.3);ctx.lineTo(ox-r*0.3,oy-r*0.3);ctx.lineTo(ox-r*0.3,oy-r);ctx.lineTo(ox+r*0.3,oy-r);ctx.lineTo(ox+r*0.3,oy-r*0.3);ctx.lineTo(ox+r,oy-r*0.3);ctx.lineTo(ox+r,oy+r*0.3);ctx.lineTo(ox+r*0.3,oy+r*0.3);ctx.lineTo(ox+r*0.3,oy+r);ctx.lineTo(ox-r*0.3,oy+r);ctx.lineTo(ox-r*0.3,oy+r*0.3);ctx.lineTo(ox-r,oy+r*0.3);ctx.closePath();}
    if(cell.fi==='solid')ctx.fill();ctx.stroke();
    if(cell.fi==='dot'){ctx.beginPath();ctx.arc(ox,oy,r*0.25,0,Math.PI*2);ctx.fillStyle='#d4b456';ctx.fill();}
  };
  if(cell.cnt===1)draw(cx2,cy2);else if(cell.cnt===2){draw(cx2-r*0.7,cy2);draw(cx2+r*0.7,cy2);}else{draw(cx2,cy2-r*0.7);draw(cx2-r*0.7,cy2+r*0.5);draw(cx2+r*0.7,cy2+r*0.5);}
}
function startMatrix(isPractice){
  _MATRIX={active:true,isPractice:isPractice,trial:0,maxTrials:isPractice?6:18,correct:0,log:[],onset:0};
  hideAll();$('matrixScreen').style.display='flex';$('matrixPracticeBanner').style.display=isPractice?'block':'none';
  $('matrixProgressBar').style.width='0%';$('matrixStimPhase').style.display='flex';$('matrixResultsPhase').style.display='none';
  $('si-task').textContent='MATRIX'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;matrixNext();
}
function matrixNext(){
  if(!_MATRIX.active)return;if(_MATRIX.trial>=_MATRIX.maxTrials){matrixEnd();return;}
  _MATRIX.trial++;var diff=Math.min(3,Math.floor(_MATRIX.trial/5));var prob=matrixMake(diff);
  _MATRIX.cur=prob;_MATRIX.onset=performance.now();
  $('matrix-trial').textContent='Item '+_MATRIX.trial+'/'+_MATRIX.maxTrials;$('matrixProgressBar').style.width=((_MATRIX.trial-1)/_MATRIX.maxTrials*100).toFixed(1)+'%';
  $('matrixFeedback').textContent='';$('matrixFeedback').className='feedback';triggerFlash();
  var cvs=$('matrixCanvas'),ctx=cvs.getContext('2d'),W=280,H=200,cw=80,ch=58,gap=3,ox=10,oy=10;
  ctx.clearRect(0,0,W,H);ctx.fillStyle='#060d14';ctx.fillRect(0,0,W,H);
  for(var r=0;r<3;r++)for(var c=0;c<3;c++){var cell=(r===2&&c===2)?null:prob.mat[r][c];matrixDrawCell(ctx,cell,ox+c*(cw+gap),oy+r*(ch+gap),cw,ch,false);if(r===2&&c===2){ctx.font='22px monospace';ctx.fillStyle='rgba(212,180,86,0.4)';ctx.textAlign='center';ctx.fillText('?',ox+c*(cw+gap)+cw/2,oy+r*(ch+gap)+ch/2+8);}}
  var od=$('matrixOptions');od.innerHTML='';
  prob.foils.forEach(function(f,i){
    var btn=document.createElement('canvas');btn.width=60;btn.height=46;btn.style.cssText='border:1px solid #2a4060;background:#0a1620;cursor:pointer;border-radius:2px;';
    matrixDrawCell(btn.getContext('2d'),f,0,0,60,46,false);
    btn.onmouseenter=function(){btn.style.borderColor='var(--gold)';};btn.onmouseleave=function(){if(!btn.dataset.c)btn.style.borderColor='#2a4060';};
    btn.onclick=function(){if(!_MATRIX.active||btn.dataset.c)return;
      var rt=+(performance.now()-_MATRIX.onset).toFixed(1);var ok=i===prob.ci;if(ok)_MATRIX.correct++;
      _MATRIX.log.push({trial:_MATRIX.trial,rule:prob.rule,correct:ok,rt:rt});
      od.querySelectorAll('canvas').forEach(function(b,bi){b.dataset.c='1';b.style.pointerEvents='none';if(bi===prob.ci)b.style.borderColor='#81c784';else if(b===btn&&!ok)b.style.borderColor='#e05c5c';});
      var fb=$('matrixFeedback');fb.textContent=ok?'correct':'wrong';fb.className='feedback '+(ok?'ok':'err');
      setTimeout(function(){if(_MATRIX.active)matrixNext();},700);};
    od.appendChild(btn);});
}
function matrixEnd(){
  _MATRIX.active=false;$('matrixStimPhase').style.display='none';$('matrixProgressBar').style.width='100%';
  if(_MATRIX.isPractice){$('pcStats').innerHTML='CORRECT <span>'+_MATRIX.correct+'/'+_MATRIX.maxTrials+'</span>';hideAll();$('practiceComplete').style.display='flex';return;}
  window._matrix_log=_MATRIX.log;$('exportBtn').disabled=false;
  var acc=(_MATRIX.correct/_MATRIX.maxTrials*100).toFixed(0);
  $('matrixMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+_MATRIX.correct+'/'+_MATRIX.maxTrials+'</div><div class="vm-lbl">Correct</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+acc+'%</div><div class="vm-lbl">Accuracy</div></div>';
  $('matrixResultsPhase').style.display='block';updateSidebar();
}
function matrixExportCSV(){
  var log=window._matrix_log;if(!log)return;
  var blob=new Blob(['trial,rule,correct,rt_ms\n'+log.map(function(r){return[r.trial,r.rule,r.correct?1:0,r.rt].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='matrix_'+Date.now()+'.csv';a.click();
}

// ══ METACOGNITION ════════════════════════════════════════
var _META=null;
var META_WORDS=['anchor','bishop','candle','dolphin','emerald','falcon','glacier','harbor',
  'island','jasmine','kettle','lantern','mango','napkin','obelisk','pilgrim',
  'quarry','raven','scarlet','temple','umber','velvet','walnut','prism','cipher','zephyr'];
function startMeta(isPractice){
  var N=taskTrials('META',8,24,isPractice);var targets=META_WORDS.slice(0,N);var foils=META_WORDS.slice(N,N+N/2);
  var study=targets.slice().sort(function(){return Math.random()-0.5;});
  var test2=targets.concat(foils).sort(function(){return Math.random()-0.5;});
  _META={active:true,isPractice:isPractice,targets:targets,foils:foils,study:study,test:test2,phase:'study',si:0,ti:0,hits:0,fas:0,log:[],pending:null};
  hideAll();$('metaScreen').style.display='flex';$('metaPracticeBanner').style.display=isPractice?'block':'none';
  $('metaProgressBar').style.width='0%';$('metaStimPhase').style.display='flex';$('metaResultsPhase').style.display='none';
  $('si-task').textContent='META'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  $('metaRecogRow').style.display='none';$('metaConfRow').style.display='none';metaStudy();
}
function metaStudy(){
  _META.phase='study';$('meta-phase').textContent=tr('STUDY');$('metaRecogRow').style.display='none';$('metaConfRow').style.display='none';
  var si=0;
  function show(){if(!_META.active)return;if(si>=_META.study.length){setTimeout(metaTest,1200);return;}
    $('meta-trial').textContent=(si+1)+'/'+_META.study.length;$('metaProgressBar').style.width=(si/_META.study.length*50).toFixed(1)+'%';
    $('metaWord').textContent=_META.study[si++].toUpperCase();$('metaWord').style.color='var(--gold)';triggerFlash();setTimeout(show,1200);}show();
}
function metaTest(){
  _META.phase='test';$('meta-phase').textContent=tr('TEST');var ti=0;
  function next(){if(!_META.active)return;if(ti>=_META.test.length){metaEnd();return;}
    var word=_META.test[ti++];var isOld=_META.targets.indexOf(word)>=0;
    $('meta-trial').textContent=ti+'/'+_META.test.length;$('metaProgressBar').style.width=(50+ti/_META.test.length*50).toFixed(1)+'%';
    $('metaWord').textContent=word.toUpperCase();$('metaWord').style.color='var(--mid)';
    $('metaRecogRow').style.display='flex';$('metaConfRow').style.display='none';$('metaRecogFb').textContent='F=OLD  J=NEW';$('metaRecogFb').className='feedback';triggerFlash();
    var kh=function(e){if(!_META.active)return;var r=e.key==='f'||e.key==='F'?true:e.key==='j'||e.key==='J'?false:null;if(r===null)return;e.preventDefault();
      if(r&&isOld)_META.hits++;if(r&&!isOld)_META.fas++;
      _META.pending={word:word,isOld:isOld,recog:r};document.removeEventListener('keydown',kh);
      $('metaRecogFb').textContent=r?'OLD':'NEW';$('metaConfRow').style.display='flex';
      window.metaConf=function(conf){if(!_META.active||!_META.pending)return;var pr=_META.pending;
        _META.log.push({word:pr.word,isOld:pr.isOld,recog:pr.recog,correct:pr.recog===pr.isOld,conf:conf});
        $('metaConfRow').style.display='none';$('metaRecogRow').style.display='none';_META.pending=null;setTimeout(next,300);};
    };document.addEventListener('keydown',kh);}next();
}
function metaEnd(){
  _META.active=false;$('metaStimPhase').style.display='none';$('metaProgressBar').style.width='100%';
  if(_META.isPractice){$('pcStats').innerHTML='HITS <span>'+_META.hits+'</span>';hideAll();$('practiceComplete').style.display='flex';return;}
  window._meta_log=_META.log;$('exportBtn').disabled=false;
  var nOld=_META.targets.length,nNew=_META.foils.length;
  var d1=+(_META.hits/nOld-_META.fas/nNew).toFixed(2);
  var hc=_META.log.filter(function(r){return r.conf>=3;});var ha=hc.length?(hc.filter(function(r){return r.correct;}).length/hc.length*100).toFixed(0)+'%':'--';
  $('metaMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+d1+'</div><div class="vm-lbl">Type 1 d\'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+ha+'</div><div class="vm-lbl">High-conf acc.</div></div>';
  $('metaResultsPhase').style.display='block';updateSidebar();
}
function metaExportCSV(){
  var log=window._meta_log;if(!log)return;
  var blob=new Blob(['word,is_old,recog,correct,confidence\n'+log.map(function(r){return[r.word,r.isOld?1:0,r.recog?1:0,r.correct?1:0,r.conf].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='meta_'+Date.now()+'.csv';a.click();
}

// ══ CLINICAL SCALES — shared engine ══════════════════════
function scaleRender(id,items,optsList,timeRef){
  var el=$(id+'Items');el.innerHTML='';
  if(timeRef){var note=document.createElement('div');note.style.cssText='font-size:0.72rem;color:var(--dim);margin-bottom:10px;font-style:italic;';note.textContent=timeRef;el.appendChild(note);}
  items.forEach(function(item,i){
    var div=document.createElement('div');div.style.cssText='padding:8px 0;border-bottom:1px solid #1a2f44;';
    var q=document.createElement('div');q.style.cssText='font-size:0.85rem;color:var(--text);font-family:"EB Garamond",serif;margin-bottom:6px;line-height:1.5;';q.textContent=(i+1)+'. '+item;div.appendChild(q);
    var opts=Array.isArray(optsList[0])?optsList[i]:optsList;
    var row=document.createElement('div');row.style.cssText='display:flex;gap:6px;flex-wrap:wrap;';
    opts.forEach(function(opt,oi){
      var lbl=document.createElement('label');lbl.style.cssText='display:flex;align-items:center;gap:4px;cursor:pointer;font-size:0.78rem;color:var(--dim);font-family:"Source Code Pro",monospace;';
      var inp=document.createElement('input');inp.type='radio';inp.name='sc_'+id+'_'+i;inp.value=typeof opt==='object'?opt.v:oi;inp.style.accentColor='var(--gold)';
      var ltext=typeof opt==='object'?opt.l:opt;
      lbl.appendChild(inp);lbl.appendChild(document.createTextNode(ltext));row.appendChild(lbl);
    });div.appendChild(row);el.appendChild(div);
  });
}
function scaleScore(id,n){
  var total=0;var missing=[];
  for(var i=0;i<n;i++){var sel=document.querySelector('input[name="sc_'+id+'_'+i+'"]:checked');if(!sel)missing.push(i+1);else total+=parseInt(sel.value);}
  return{total:total,missing:missing};
}
function scaleExport(id,items,total){
  var rows=['item,score'];
  items.forEach(function(q,i){var sel=document.querySelector('input[name="sc_'+id+'_'+i+'"]:checked');rows.push((i+1)+','+(sel?sel.value:''));});
  rows.push('TOTAL,'+total);
  var blob=new Blob([rows.join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download=id+'_'+Date.now()+'.csv';a.click();
}

// ══ CLINICAL SCALES — Russian localization ════════════════════
// Unofficial translations provided for accessibility / interface use only.
// For research or clinical scoring against published norms, use the validated
// translations from the scale publishers:
//   PHQ-9 / GAD-7        → phqscreeners.com (Pfizer, free)
//   PCL-5                → National Center for PTSD (free)
//   AUDIT                → WHO (free PDF, AUDIT Manual)
//   MoCA                 → mocacognition.com (certified translation, free w/ registration)
//   ASRS                 → WHO ASRS Symptom Checklist (free)
//   Hachinski / Katz / Lawton → published in geriatric / dementia literature
// Every validated scale shows an "UNOFFICIAL TRANSLATION" banner in Russian
// mode so the unofficial wording cannot be mistaken for canonical scoring.
var VALIDATED_SCALES={phq9:1,gad7:1,pcl5:1,audit:1,asrs:1,hach:1,hachinski:1,katz:1,lawton:1};
var QUESTIONNAIRES_RU={
  phq9:{
    timeRef:'За последние 2 недели, как часто вас беспокоили следующие проблемы:',
    Q:[
      'Слабый интерес или удовольствие от занятий',
      'Подавленное настроение, депрессия или чувство безнадёжности',
      'Трудности с засыпанием или сном, или слишком долгий сон',
      'Чувство усталости или нехватки энергии',
      'Плохой аппетит или переедание',
      'Плохое мнение о себе — чувство, что вы неудачник или подвели свою семью',
      'Трудности с концентрацией внимания, например при чтении или просмотре телевизора',
      'Двигательная или речевая заторможенность — либо суетливость и беспокойство',
      'Мысли о том, что вам было бы лучше умереть, или о причинении себе вреда'
    ],
    O:[{v:0,l:'Совсем нет (0)'},{v:1,l:'Несколько дней (1)'},{v:2,l:'Более половины дней (2)'},{v:3,l:'Почти каждый день (3)'}]
  },
  gad7:{
    timeRef:'За последние 2 недели, как часто вас беспокоили следующие проблемы:',
    Q:[
      'Чувство нервозности, тревоги или взвинченности',
      'Невозможность остановить или контролировать беспокойство',
      'Чрезмерное беспокойство по поводу различных вещей',
      'Трудности с расслаблением',
      'Такое беспокойство, что трудно усидеть на месте',
      'Лёгкая раздражительность',
      'Страх, как будто может случиться что-то ужасное'
    ],
    O:[{v:0,l:'Совсем нет (0)'},{v:1,l:'Несколько дней (1)'},{v:2,l:'Более половины дней (2)'},{v:3,l:'Почти каждый день (3)'}]
  },
  pcl5:{
    timeRef:'За последний месяц, насколько вас беспокоили следующие проблемы, связанные со стрессовым переживанием:',
    Q:[
      'Повторяющиеся, тревожные и нежелательные воспоминания о стрессовом переживании',
      'Повторяющиеся тревожные сны о стрессовом переживании',
      'Внезапное ощущение или поведение, как будто стрессовое переживание происходит снова',
      'Сильное расстройство, когда что-то напоминало вам о стрессовом переживании',
      'Сильные физические реакции, когда что-то напоминало вам о переживании',
      'Избегание воспоминаний, мыслей или чувств, связанных со стрессовым переживанием',
      'Избегание внешних напоминаний о стрессовом переживании',
      'Трудности с воспоминанием важных частей стрессового переживания',
      'Сильные негативные убеждения о себе, других людях или мире',
      'Обвинение себя или кого-то другого в стрессовом переживании',
      'Сильные негативные чувства, такие как страх, ужас, гнев, вина или стыд',
      'Потеря интереса к деятельности, которой вы раньше наслаждались',
      'Чувство отстранённости или отчуждённости от других людей',
      'Трудности с переживанием положительных чувств',
      'Раздражительное поведение или вспышки гнева',
      'Чрезмерный риск или действия, которые могут причинить вред',
      'Повышенная настороженность или бдительность',
      'Нервозность или лёгкая пугливость',
      'Трудности с концентрацией внимания',
      'Трудности с засыпанием или сном'
    ],
    O:[{v:0,l:'Совсем нет (0)'},{v:1,l:'Немного (1)'},{v:2,l:'Умеренно (2)'},{v:3,l:'Довольно сильно (3)'},{v:4,l:'Чрезвычайно (4)'}]
  },
  audit:{
    timeRef:'Пожалуйста, отметьте ответ, наиболее точно описывающий ваше потребление алкоголя:',
    Q:[
      'Как часто вы употребляете напитки, содержащие алкоголь?',
      'Сколько порций алкоголя вы выпиваете в типичный день, когда пьёте?',
      'Как часто вы выпивали 6 или более порций (женщины) или 8 или более (мужчины) за один раз в течение прошлого года?',
      'Как часто за прошлый год вы обнаруживали, что не можете остановиться, начав пить?',
      'Как часто за прошлый год вы не справлялись с тем, что от вас обычно ожидается, из-за выпивки?',
      'Как часто за прошлый год вам требовалось выпить с утра, чтобы прийти в себя после сильной пьянки?',
      'Как часто за прошлый год вы испытывали чувство вины или раскаяния после выпивки?',
      'Как часто за прошлый год вы не могли вспомнить, что произошло накануне вечером, потому что выпивали?',
      'Получали ли вы или кто-то ещё травмы в результате вашего употребления алкоголя?',
      'Выражал ли родственник, друг, врач или другой медицинский работник обеспокоенность вашим употреблением алкоголя или предлагал ли сократить его?'
    ],
    O:[
      [{v:0,l:'Никогда (0)'},{v:1,l:'Раз в месяц или реже (1)'},{v:2,l:'2–4 раза в месяц (2)'},{v:3,l:'2–3 раза в неделю (3)'},{v:4,l:'4 и более раз в неделю (4)'}],
      [{v:0,l:'1 или 2 (0)'},{v:1,l:'3 или 4 (1)'},{v:2,l:'5 или 6 (2)'},{v:3,l:'7 или 9 (3)'},{v:4,l:'10 и более (4)'}],
      [{v:0,l:'Никогда (0)'},{v:1,l:'Реже, чем раз в месяц (1)'},{v:2,l:'Ежемесячно (2)'},{v:3,l:'Еженедельно (3)'},{v:4,l:'Ежедневно или почти ежедневно (4)'}],
      [{v:0,l:'Никогда (0)'},{v:1,l:'Реже, чем раз в месяц (1)'},{v:2,l:'Ежемесячно (2)'},{v:3,l:'Еженедельно (3)'},{v:4,l:'Ежедневно или почти ежедневно (4)'}],
      [{v:0,l:'Никогда (0)'},{v:1,l:'Реже, чем раз в месяц (1)'},{v:2,l:'Ежемесячно (2)'},{v:3,l:'Еженедельно (3)'},{v:4,l:'Ежедневно или почти ежедневно (4)'}],
      [{v:0,l:'Никогда (0)'},{v:1,l:'Реже, чем раз в месяц (1)'},{v:2,l:'Ежемесячно (2)'},{v:3,l:'Еженедельно (3)'},{v:4,l:'Ежедневно или почти ежедневно (4)'}],
      [{v:0,l:'Никогда (0)'},{v:1,l:'Реже, чем раз в месяц (1)'},{v:2,l:'Ежемесячно (2)'},{v:3,l:'Еженедельно (3)'},{v:4,l:'Ежедневно или почти ежедневно (4)'}],
      [{v:0,l:'Никогда (0)'},{v:1,l:'Реже, чем раз в месяц (1)'},{v:2,l:'Ежемесячно (2)'},{v:3,l:'Еженедельно (3)'},{v:4,l:'Ежедневно или почти ежедневно (4)'}],
      [{v:0,l:'Нет (0)'},{v:2,l:'Да, но не в прошлом году (2)'},{v:4,l:'Да, в течение прошлого года (4)'}],
      [{v:0,l:'Нет (0)'},{v:2,l:'Да, но не в прошлом году (2)'},{v:4,l:'Да, в течение прошлого года (4)'}]
    ]
  },
  asrs:{
    timeRef:'За последние 6 месяцев, как часто с вами случалось следующее:',
    Q:[
      'Как часто у вас возникают трудности с завершением финальных деталей проекта после того, как сложные части уже выполнены?',
      'Как часто у вас возникают трудности с приведением дел в порядок при выполнении задачи, требующей организованности?',
      'Как часто у вас возникают проблемы с запоминанием встреч или обязательств?',
      'Когда перед вами стоит задача, требующая большой умственной работы, как часто вы избегаете её или откладываете начало?',
      'Как часто вы ёрзаете руками или ногами, когда приходится долго сидеть?',
      'Как часто вы чувствуете себя чрезмерно активным и вынужденным что-то делать, словно вас гонит мотор?',
      'Как часто вы делаете небрежные ошибки при работе над скучным или трудным проектом?',
      'Как часто у вас возникают трудности с удержанием внимания при выполнении скучной или повторяющейся работы?',
      'Как часто у вас возникают трудности с концентрацией на том, что говорят люди, даже когда они обращаются непосредственно к вам?',
      'Как часто вы теряете вещи или не можете их найти дома или на работе?',
      'Как часто вас отвлекают активность или шум вокруг?',
      'Как часто вы покидаете своё место на собраниях или в других ситуациях, где ожидается, что вы будете сидеть?',
      'Как часто вы чувствуете беспокойство или непоседливость?',
      'Как часто вам трудно расслабиться, когда у вас есть время для себя?',
      'Как часто вы обнаруживаете, что слишком много говорите в социальных ситуациях?',
      'В разговоре, как часто вы заканчиваете предложения собеседника, прежде чем он успевает их закончить?',
      'Как часто вам трудно дождаться своей очереди в ситуациях, требующих очерёдности?',
      'Как часто вы перебиваете других, когда они заняты?'
    ],
    O:[{v:0,l:'Никогда (0)'},{v:1,l:'Редко (1)'},{v:2,l:'Иногда (2)'},{v:3,l:'Часто (3)'},{v:4,l:'Очень часто (4)'}]
  },
  hachinski:{
    timeRef:'Клиническая оценка: для каждого признака отметьте «Отсутствует» или «Присутствует» на основании анамнеза и осмотра.',
    Q:[
      'Внезапное начало когнитивного снижения',
      'Ступенчатое ухудшение (резкое ухудшение с последующим плато)',
      'Флуктуирующее течение (хорошие и плохие дни)',
      'Ночная спутанность сознания',
      'Относительная сохранность личности',
      'Депрессия',
      'Соматические жалобы',
      'Эмоциональное недержание (внезапный смех или плач)',
      'Артериальная гипертензия в анамнезе',
      'Инсульты в анамнезе',
      'Признаки сопутствующего атеросклероза (например, периферического или коронарного)',
      'Очаговая неврологическая симптоматика (преходящая или стойкая)',
      'Очаговые неврологические признаки при осмотре'
    ],
    // Per-item options — each item has its own weight when "Present"
    _W:[2,1,2,1,1,1,1,1,1,2,1,2,2],
    O:null // built below
  },
  katz:{
    timeRef:'Для каждой активности отметьте, является ли пациент НЕЗАВИСИМЫМ (выполняет без помощи) или ЗАВИСИМЫМ (требуется помощь, наблюдение или не выполняет).',
    Q:[
      'КУПАНИЕ — полностью моется сам или нуждается в помощи только с одной частью тела (например, спина, гениталии, конечность с ограничением)',
      'ОДЕВАНИЕ — выбирает одежду, достаёт её из шкафа и надевает верхнюю одежду (может нуждаться в помощи завязать шнурки)',
      'ТУАЛЕТ — ходит в туалет, садится и встаёт, поправляет одежду, ухаживает за собой без помощи',
      'ПЕРЕДВИЖЕНИЕ — встаёт с кровати или стула без посторонней помощи (механические средства допустимы)',
      'УДЕРЖАНИЕ — полностью контролирует мочеиспускание и дефекацию',
      'ПИТАНИЕ — самостоятельно ест с тарелки (приготовление пищи может выполняться другим человеком)'
    ],
    O:[{v:0,l:'Зависим (0) — требуется помощь'},{v:1,l:'Независим (1) — без надзора/указаний'}]
  },
  lawton:{
    timeRef:'Для каждой инструментальной активности отметьте, является ли пациент НЕЗАВИСИМЫМ или ЗАВИСИМЫМ (не может выполнить или требуется помощь). Унисекс-оценка 0–8.',
    Q:[
      'ТЕЛЕФОН — пользуется телефоном самостоятельно (ищет номера, набирает, отвечает)',
      'ПОКУПКИ — самостоятельно делает покупки для всех необходимых нужд',
      'ПРИГОТОВЛЕНИЕ ПИЩИ — планирует, готовит и подаёт адекватные блюда самостоятельно',
      'ВЕДЕНИЕ ХОЗЯЙСТВА — поддерживает дом в одиночку или с эпизодической помощью (например, тяжёлая работа)',
      'СТИРКА — полностью стирает свои вещи',
      'ТРАНСПОРТ — самостоятельно передвигается на общественном транспорте, водит свой автомобиль или организует поездки',
      'ЛЕКАРСТВА — отвечает за приём лекарств в правильных дозах в правильное время',
      'ФИНАНСЫ — самостоятельно ведёт финансовые дела (бюджет, оплата счетов, банк)'
    ],
    O:[{v:0,l:'Зависим (0) — не может / нужна помощь'},{v:1,l:'Независим (1)'}]
  }
};
// Build Hachinski per-item options from weights
QUESTIONNAIRES_RU.hachinski.O=QUESTIONNAIRES_RU.hachinski.Q.map(function(_,i){
  return [{v:0,l:'Отсутствует (0)'},{v:QUESTIONNAIRES_RU.hachinski._W[i],l:'Присутствует ('+QUESTIONNAIRES_RU.hachinski._W[i]+')'}];
});

// ── Spanish questionnaire translations ──────────────────
// Unofficial translations — for validated clinical scoring against published
// norms, use publisher-validated Spanish translations:
//   PHQ-9 / GAD-7 → phqscreeners.com (validated Spanish version available)
//   PCL-5         → National Center for PTSD (Spanish version available)
//   AUDIT         → WHO (Spanish AUDIT manual available)
//   ASRS          → WHO ASRS Spanish version
// Validated-scale banner is shown in Spanish too via VALIDATED_SCALES check.
var QUESTIONNAIRES_ES={
  phq9:{
    timeRef:'Durante las últimas 2 semanas, ¿con qué frecuencia te ha molestado lo siguiente?',
    Q:[
      'Poco interés o placer en hacer cosas',
      'Estado de ánimo deprimido, triste o sin esperanza',
      'Dificultad para conciliar o mantener el sueño, o dormir demasiado',
      'Sensación de cansancio o poca energía',
      'Poco apetito o comer en exceso',
      'Mala opinión de uno mismo — sentirse fracasado o haber decepcionado a la familia',
      'Dificultad para concentrarse, p. ej. al leer o ver la televisión',
      'Movimiento o habla lentos — o lo contrario, agitación o inquietud',
      'Pensamientos de que estarías mejor muerto o de hacerte daño'
    ],
    O:[{v:0,l:'Nada (0)'},{v:1,l:'Varios días (1)'},{v:2,l:'Más de la mitad de los días (2)'},{v:3,l:'Casi todos los días (3)'}]
  },
  gad7:{
    timeRef:'Durante las últimas 2 semanas, ¿con qué frecuencia te ha molestado lo siguiente?',
    Q:[
      'Sentirse nervioso, ansioso o al borde',
      'No poder dejar de preocuparse o controlar la preocupación',
      'Preocuparse demasiado por diferentes cosas',
      'Dificultad para relajarse',
      'Estar tan inquieto que es difícil quedarse quieto',
      'Irritabilidad fácil',
      'Miedo como si algo terrible fuera a suceder'
    ],
    O:[{v:0,l:'Nada (0)'},{v:1,l:'Varios días (1)'},{v:2,l:'Más de la mitad de los días (2)'},{v:3,l:'Casi todos los días (3)'}]
  },
  pcl5:{
    timeRef:'Durante el último mes, ¿cuánto te han molestado los siguientes problemas relacionados con la experiencia estresante?',
    Q:[
      'Recuerdos repetidos, perturbadores e indeseados de la experiencia estresante',
      'Sueños perturbadores repetidos sobre la experiencia estresante',
      'Sentir o actuar de repente como si la experiencia estresante estuviera ocurriendo de nuevo',
      'Sentirse muy alterado cuando algo te recordó la experiencia estresante',
      'Reacciones físicas fuertes cuando algo te recordó la experiencia',
      'Evitar recuerdos, pensamientos o sentimientos relacionados con la experiencia estresante',
      'Evitar recordatorios externos de la experiencia estresante',
      'Dificultad para recordar partes importantes de la experiencia estresante',
      'Creencias fuertemente negativas sobre uno mismo, los demás o el mundo',
      'Culparse a uno mismo o a otra persona por la experiencia estresante',
      'Sentimientos negativos fuertes como miedo, horror, ira, culpa o vergüenza',
      'Pérdida de interés en actividades que antes disfrutaba',
      'Sensación de distancia o desconexión con otras personas',
      'Dificultad para experimentar sentimientos positivos',
      'Comportamiento irritable o ataques de ira',
      'Asumir demasiados riesgos o hacer cosas que podrían causar daño',
      'Estar super alerta o en guardia',
      'Sobresaltos o estar muy nervioso',
      'Dificultad para concentrarse',
      'Dificultad para conciliar o mantener el sueño'
    ],
    O:[{v:0,l:'Nada (0)'},{v:1,l:'Un poco (1)'},{v:2,l:'Moderadamente (2)'},{v:3,l:'Bastante (3)'},{v:4,l:'Extremadamente (4)'}]
  },
  audit:{
    timeRef:'Por favor marca la respuesta que mejor describa tu consumo de alcohol:',
    Q:[
      '¿Con qué frecuencia consumes bebidas que contienen alcohol?',
      '¿Cuántas unidades de alcohol bebes en un día típico cuando bebes?',
      '¿Con qué frecuencia has bebido 6 o más unidades (mujer) u 8 o más (hombre) en una sola ocasión durante el último año?',
      '¿Con qué frecuencia durante el último año has descubierto que no podías dejar de beber una vez que habías empezado?',
      '¿Con qué frecuencia durante el último año dejaste de hacer lo que normalmente se esperaba de ti debido a la bebida?',
      '¿Con qué frecuencia durante el último año necesitaste beber por la mañana para reponerte después de una sesión fuerte?',
      '¿Con qué frecuencia durante el último año has tenido sentimientos de culpa o remordimiento después de beber?',
      '¿Con qué frecuencia durante el último año no pudiste recordar lo que pasó la noche anterior porque habías bebido?',
      '¿Tú o alguien más habéis resultado heridos como consecuencia de tu consumo de alcohol?',
      '¿Algún pariente, amigo, médico u otro profesional de la salud se ha preocupado por tu consumo de alcohol o te ha sugerido que lo reduzcas?'
    ],
    O:[
      [{v:0,l:'Nunca (0)'},{v:1,l:'Una vez al mes o menos (1)'},{v:2,l:'2–4 veces al mes (2)'},{v:3,l:'2–3 veces por semana (3)'},{v:4,l:'4 o más veces por semana (4)'}],
      [{v:0,l:'1 o 2 (0)'},{v:1,l:'3 o 4 (1)'},{v:2,l:'5 o 6 (2)'},{v:3,l:'7 o 9 (3)'},{v:4,l:'10 o más (4)'}],
      [{v:0,l:'Nunca (0)'},{v:1,l:'Menos de una vez al mes (1)'},{v:2,l:'Mensualmente (2)'},{v:3,l:'Semanalmente (3)'},{v:4,l:'Diario o casi diario (4)'}],
      [{v:0,l:'Nunca (0)'},{v:1,l:'Menos de una vez al mes (1)'},{v:2,l:'Mensualmente (2)'},{v:3,l:'Semanalmente (3)'},{v:4,l:'Diario o casi diario (4)'}],
      [{v:0,l:'Nunca (0)'},{v:1,l:'Menos de una vez al mes (1)'},{v:2,l:'Mensualmente (2)'},{v:3,l:'Semanalmente (3)'},{v:4,l:'Diario o casi diario (4)'}],
      [{v:0,l:'Nunca (0)'},{v:1,l:'Menos de una vez al mes (1)'},{v:2,l:'Mensualmente (2)'},{v:3,l:'Semanalmente (3)'},{v:4,l:'Diario o casi diario (4)'}],
      [{v:0,l:'Nunca (0)'},{v:1,l:'Menos de una vez al mes (1)'},{v:2,l:'Mensualmente (2)'},{v:3,l:'Semanalmente (3)'},{v:4,l:'Diario o casi diario (4)'}],
      [{v:0,l:'Nunca (0)'},{v:1,l:'Menos de una vez al mes (1)'},{v:2,l:'Mensualmente (2)'},{v:3,l:'Semanalmente (3)'},{v:4,l:'Diario o casi diario (4)'}],
      [{v:0,l:'No (0)'},{v:2,l:'Sí, pero no en el último año (2)'},{v:4,l:'Sí, durante el último año (4)'}],
      [{v:0,l:'No (0)'},{v:2,l:'Sí, pero no en el último año (2)'},{v:4,l:'Sí, durante el último año (4)'}]
    ]
  },
  asrs:{
    timeRef:'Durante los últimos 6 meses, ¿con qué frecuencia te ha ocurrido lo siguiente?',
    Q:[
      '¿Con qué frecuencia tienes dificultad para terminar los últimos detalles de un proyecto una vez completadas las partes difíciles?',
      '¿Con qué frecuencia tienes dificultad para poner las cosas en orden cuando tienes que hacer una tarea que requiere organización?',
      '¿Con qué frecuencia tienes problemas para recordar citas u obligaciones?',
      'Cuando tienes una tarea que requiere mucha reflexión, ¿con qué frecuencia la evitas o pospones su inicio?',
      '¿Con qué frecuencia agitas o mueves las manos o los pies cuando tienes que estar sentado mucho tiempo?',
      '¿Con qué frecuencia te sientes demasiado activo y compelido a hacer cosas, como si te impulsara un motor?',
      '¿Con qué frecuencia cometes errores por descuido cuando trabajas en un proyecto aburrido o difícil?',
      '¿Con qué frecuencia tienes dificultad para mantener la atención cuando haces un trabajo aburrido o repetitivo?',
      '¿Con qué frecuencia tienes dificultad para concentrarte en lo que te dicen, incluso cuando te hablan directamente?',
      '¿Con qué frecuencia pierdes o tienes dificultad para encontrar cosas en casa o en el trabajo?',
      '¿Con qué frecuencia te distraes con la actividad o el ruido a tu alrededor?',
      '¿Con qué frecuencia te levantas de tu asiento en reuniones o en situaciones donde se espera que permanezcas sentado?',
      '¿Con qué frecuencia te sientes inquieto o agitado?',
      '¿Con qué frecuencia te resulta difícil relajarte cuando tienes tiempo para ti?',
      '¿Con qué frecuencia te encuentras hablando demasiado en situaciones sociales?',
      'En una conversación, ¿con qué frecuencia te encuentras terminando las frases de las personas con las que hablas antes de que ellas puedan terminarlas?',
      '¿Con qué frecuencia tienes dificultad para esperar tu turno en situaciones donde se requiere?',
      '¿Con qué frecuencia interrumpes a otros cuando están ocupados?'
    ],
    O:[{v:0,l:'Nunca (0)'},{v:1,l:'Raramente (1)'},{v:2,l:'A veces (2)'},{v:3,l:'A menudo (3)'},{v:4,l:'Muy a menudo (4)'}]
  },
  hachinski:{
    timeRef:'Evaluación clínica: para cada característica, marca Ausente o Presente según la historia y el examen.',
    Q:[
      'Inicio súbito del deterioro cognitivo',
      'Deterioro escalonado (empeoramiento brusco seguido de meseta)',
      'Curso fluctuante (días buenos y malos)',
      'Confusión nocturna',
      'Conservación relativa de la personalidad',
      'Depresión',
      'Quejas somáticas',
      'Incontinencia emocional (risa o llanto súbitos)',
      'Antecedentes de hipertensión arterial',
      'Antecedentes de accidentes cerebrovasculares',
      'Signos de aterosclerosis asociada (p. ej. periférica o coronaria)',
      'Síntomas neurológicos focales (transitorios o persistentes)',
      'Signos neurológicos focales en la exploración'
    ],
    _W:[2,1,2,1,1,1,1,1,1,2,1,2,2],
    O:null
  },
  katz:{
    timeRef:'Para cada actividad, marca si el paciente es INDEPENDIENTE (lo hace sin ayuda) o DEPENDIENTE (requiere ayuda, supervisión o no la realiza).',
    Q:[
      'BAÑO — se lava completamente solo, o solo necesita ayuda con una parte del cuerpo (p. ej. espalda, genitales, extremidad con discapacidad)',
      'VESTIDO — elige la ropa, la saca del armario y se viste (puede necesitar ayuda para atarse los cordones)',
      'BAÑO — va al baño, se sienta y se levanta, se ajusta la ropa, se cuida sin ayuda',
      'TRASLADO — se levanta de la cama o silla sin ayuda externa (se permiten ayudas mecánicas)',
      'CONTINENCIA — controla completamente la micción y la defecación',
      'ALIMENTACIÓN — come solo del plato (la preparación de la comida puede ser realizada por otra persona)'
    ],
    O:[{v:0,l:'Dependiente (0) — necesita ayuda'},{v:1,l:'Independiente (1) — sin supervisión/dirección'}]
  },
  lawton:{
    timeRef:'Para cada actividad instrumental, marca si el paciente es INDEPENDIENTE o DEPENDIENTE (no puede hacerlo, o requiere ayuda). Puntuación unisex 0–8.',
    Q:[
      'TELÉFONO — usa el teléfono por iniciativa propia (busca números, marca, contesta)',
      'COMPRAS — hace todas las compras necesarias de forma independiente',
      'PREPARACIÓN DE COMIDAS — planifica, prepara y sirve comidas adecuadas de forma independiente',
      'CUIDADO DEL HOGAR — mantiene el hogar solo o con ayuda ocasional (p. ej. trabajo pesado)',
      'LAVANDERÍA — lava toda su ropa',
      'TRANSPORTE — se desplaza de forma independiente en transporte público, conduce su propio coche u organiza viajes',
      'MEDICACIÓN — es responsable de tomar la medicación en las dosis y horarios correctos',
      'FINANZAS — maneja los asuntos financieros de forma independiente (presupuesto, pago de facturas, banco)'
    ],
    O:[{v:0,l:'Dependiente (0) — no puede / necesita ayuda'},{v:1,l:'Independiente (1)'}]
  }
};
// Build Hachinski per-item options from weights
QUESTIONNAIRES_ES.hachinski.O=QUESTIONNAIRES_ES.hachinski.Q.map(function(_,i){
  return [{v:0,l:'Ausente (0)'},{v:QUESTIONNAIRES_ES.hachinski._W[i],l:'Presente ('+QUESTIONNAIRES_ES.hachinski._W[i]+')'}];
});

// Result-page strings — interpretation labels, classifications.
var RESULT_STRINGS_ES={
  phq9:{
    interp_minimal:'Mínima',interp_mild:'Leve',interp_moderate:'Moderada',interp_modsev:'Moderadamente grave',interp_severe:'Grave',
    suffix:' depresión. ',
    above_thresh:'Puntuación ≥10 — umbral de depresión mayor probable.',
    below_thresh:'Puntuación <10 no alcanza el umbral en este cribado.',
    item9_flag:' El ítem 9 puntúa ',
    item9_after:' — se recomienda seguimiento clínico.',
    pos:'POSITIVO',neg:'negativo',
    lbl_score:'Puntuación PHQ-9',lbl_screen:'Cribado (≥10)'
  },
  gad7:{
    interp_minimal:'Mínima',interp_mild:'Leve',interp_moderate:'Moderada',interp_severe:'Grave',
    suffix:' ansiedad. ',
    above_thresh:'Puntuación ≥10 — umbral de trastorno de ansiedad generalizada probable.',
    below_thresh:'Puntuación <10 no alcanza el umbral en este cribado.',
    pos:'POSITIVO',neg:'negativo',
    lbl_score:'Puntuación GAD-7',lbl_screen:'Cribado (≥10)'
  },
  pcl5:{
    suffix_below:'Puntuación <33 no alcanza el umbral de TEPT probable.',
    suffix_above:'Puntuación ≥33 indica TEPT probable — se necesita evaluación clínica.',
    pos:'TEPT PROBABLE',neg:'no alcanzado',
    lbl_score:'Puntuación PCL-5',lbl_screen:'Cribado (≥33)',
    lbl_intr:'Intrusión',lbl_avoid:'Evitación',lbl_cog:'Cognición-ánimo',lbl_arouse:'Excitación'
  },
  audit:{
    interp_low:'Bajo riesgo',interp_haz:'Consumo peligroso',interp_harm:'Consumo perjudicial',interp_dep:'Dependencia probable',
    above_8:'Puntuación ≥8 indica consumo de alcohol peligroso o perjudicial.',
    above_20:'Puntuación ≥20 indica dependencia alcohólica probable — se recomienda evaluación clínica.',
    below_8:'Puntuación <8 indica consumo de bajo riesgo.',
    pos:'POSITIVO',neg:'negativo',
    lbl_score:'Puntuación AUDIT',lbl_screen:'Cribado (≥8)'
  },
  asrs:{
    above:'Puntuación ≥4 en Parte A — cribado positivo de TDAH adulto probable (sensibilidad 68,7 %, especificidad 99,5 %).',
    below:'Puntuación <4 no alcanza el umbral de Parte A del ASRS.',
    pos:'POSITIVO',neg:'negativo',
    lbl_partA:'Parte A positivo',lbl_screen:'Cribado (≥4)',lbl_total:'Puntuación total'
  },
  hachinski:{
    cat_degen:'Degenerativa primaria (tipo Alzheimer)',
    cat_mixed:'Mixta / indeterminada',
    cat_vasc:'Demencia multiinfarto (vascular)',
    interp_degen:'Puntuación ≤4 es consistente con demencia degenerativa primaria (p. ej. enfermedad de Alzheimer). Contribución cerebrovascular como etiología dominante poco probable.',
    interp_mixed:'Puntuación 5–6 cae en el rango indeterminado — pueden coexistir características de patología vascular y degenerativa (demencia mixta). Se recomienda neuroimagen y evaluación adicional.',
    interp_vasc:'Puntuación ≥7 es consistente con demencia multiinfarto/vascular. La enfermedad cerebrovascular probablemente es un contribuidor significativo; confirmar con neuroimagen (RM/TC para infartos, leucoaraiosis).',
    lbl_total:'Total HIS',lbl_range:'Rango',lbl_class:'Clasificación'
  },
  katz:{
    cat_full:'Función completa',
    cat_mild:'Deterioro leve–moderado',
    cat_mod:'Deterioro moderado',
    cat_sev:'Deterioro grave',
    interp_6:'Puntuación 6/6 — independencia completa en actividades básicas de la vida diaria. No se detecta deterioro de AVD básicas.',
    interp_45:'La puntuación indica deterioro funcional leve a moderado en AVD básicas. Identificar déficits específicos para intervención dirigida (p. ej. ayudas para el baño, dispositivos para vestirse). Considerar Lawton AIVD para el declive funcional más temprano.',
    interp_3:'La puntuación indica deterioro funcional moderado — el paciente requiere asistencia con múltiples AVD básicas. Se recomienda planificación de cuidados y apoyo a cuidadores.',
    interp_low:'La puntuación indica deterioro grave de AVD básicas. El paciente depende de ayuda en la mayoría de las actividades fundamentales de autocuidado. Indica carga sustancial para el cuidador / puede requerir cuidados a nivel institucional.',
    lbl_total:'Total Katz AVD',lbl_dep:'Actividades con dependencia',lbl_class:'Clasificación'
  },
  lawton:{
    cat_full:'Función AIVD completa',
    cat_mild:'Deterioro leve',
    cat_mod:'Deterioro moderado',
    cat_sev:'Deterioro grave',
    interp_8:'Puntuación 8/8 — independencia completa en actividades instrumentales. No se detecta deterioro de AIVD.',
    interp_67:'La puntuación indica deterioro leve de AIVD. Identificar déficits específicos — el declive temprano de AIVD es un marcador sensible de DCL / demencia temprana. Puede justificarse evaluación cognitiva.',
    interp_mid:'La puntuación indica deterioro moderado de AIVD. El paciente no puede vivir totalmente independiente en la comunidad sin apoyo. Probablemente se necesite cuidador o servicios a domicilio.',
    interp_low:'La puntuación indica deterioro grave de AIVD. La vida independiente en la comunidad no es factible; considerar un nivel superior de supervisión o cuidados.',
    lbl_total:'Total Lawton AIVD',lbl_dep:'AIVD con dependencia',lbl_class:'Clasificación'
  }
};

// I18N: attach Spanish late constants
if(typeof I18N !== 'undefined' && I18N.es){
  I18N.es.questionnaires = QUESTIONNAIRES_ES;
  I18N.es.results = RESULT_STRINGS_ES;
}

// ── French questionnaire translations ──────────────────
// Unofficial translations — for validated clinical scoring against published
// norms, use publisher-validated French translations (PHQ-9/GAD-7 →
// phqscreeners.com; PCL-5 → National Center for PTSD; AUDIT → WHO; ASRS → WHO).
var QUESTIONNAIRES_FR={
  phq9:{
    timeRef:'Au cours des 2 dernières semaines, à quelle fréquence avez-vous été gêné(e) par les problèmes suivants ?',
    Q:[
      'Peu d\'intérêt ou de plaisir à faire les choses',
      'Sentiment de tristesse, dépression ou désespoir',
      'Difficulté à s\'endormir ou à rester endormi, ou trop dormir',
      'Sensation de fatigue ou de manque d\'énergie',
      'Peu d\'appétit ou trop manger',
      'Mauvaise image de soi — sentiment d\'échec ou d\'avoir déçu sa famille',
      'Difficulté à se concentrer, p. ex. en lisant ou en regardant la télévision',
      'Mouvements ou paroles ralentis — ou au contraire agitation et incapacité à rester en place',
      'Pensées qu\'il vaudrait mieux mourir ou de se faire du mal'
    ],
    O:[{v:0,l:'Pas du tout (0)'},{v:1,l:'Plusieurs jours (1)'},{v:2,l:'Plus de la moitié des jours (2)'},{v:3,l:'Presque tous les jours (3)'}]
  },
  gad7:{
    timeRef:'Au cours des 2 dernières semaines, à quelle fréquence avez-vous été gêné(e) par les problèmes suivants ?',
    Q:[
      'Sentiment de nervosité, d\'anxiété ou de tension',
      'Incapacité d\'arrêter de s\'inquiéter ou de contrôler ses inquiétudes',
      'S\'inquiéter trop pour différentes choses',
      'Difficulté à se détendre',
      'Être si agité qu\'il est difficile de rester en place',
      'Devenir facilement irritable',
      'Avoir peur que quelque chose de terrible n\'arrive'
    ],
    O:[{v:0,l:'Pas du tout (0)'},{v:1,l:'Plusieurs jours (1)'},{v:2,l:'Plus de la moitié des jours (2)'},{v:3,l:'Presque tous les jours (3)'}]
  },
  pcl5:{
    timeRef:'Au cours du dernier mois, à quel point avez-vous été gêné(e) par les problèmes suivants en réponse à l\'expérience stressante ?',
    Q:[
      'Souvenirs répétés, perturbants et involontaires de l\'expérience stressante',
      'Rêves perturbants répétés sur l\'expérience stressante',
      'Sensation soudaine ou comportement comme si l\'expérience se reproduisait',
      'Bouleversement intense quand quelque chose rappelait l\'expérience',
      'Réactions physiques fortes quand quelque chose rappelait l\'expérience',
      'Éviter les souvenirs, pensées ou sentiments liés à l\'expérience',
      'Éviter les rappels externes de l\'expérience stressante',
      'Difficulté à se souvenir d\'aspects importants de l\'expérience',
      'Croyances fortement négatives sur soi-même, les autres ou le monde',
      'Se blâmer ou blâmer quelqu\'un d\'autre pour l\'expérience stressante',
      'Sentiments négatifs intenses comme peur, horreur, colère, culpabilité ou honte',
      'Perte d\'intérêt pour les activités appréciées auparavant',
      'Sensation de distance ou de coupure avec les autres',
      'Difficulté à éprouver des sentiments positifs',
      'Comportement irritable ou accès de colère',
      'Prise excessive de risques ou actes pouvant causer du tort',
      'Être super vigilant ou sur ses gardes',
      'Sursauter ou être très nerveux',
      'Difficulté à se concentrer',
      'Difficulté à s\'endormir ou à rester endormi'
    ],
    O:[{v:0,l:'Pas du tout (0)'},{v:1,l:'Un peu (1)'},{v:2,l:'Modérément (2)'},{v:3,l:'Beaucoup (3)'},{v:4,l:'Extrêmement (4)'}]
  },
  audit:{
    timeRef:'Veuillez cocher la réponse qui décrit le mieux votre consommation d\'alcool :',
    Q:[
      'À quelle fréquence consommez-vous des boissons alcoolisées ?',
      'Combien d\'unités d\'alcool buvez-vous lors d\'une journée typique de consommation ?',
      'À quelle fréquence buvez-vous 6 unités ou plus (femme) ou 8 ou plus (homme) en une seule occasion durant l\'année écoulée ?',
      'À quelle fréquence durant l\'année écoulée avez-vous constaté que vous ne pouviez pas arrêter de boire une fois commencé ?',
      'À quelle fréquence durant l\'année écoulée avez-vous manqué de faire ce qui était normalement attendu de vous à cause de l\'alcool ?',
      'À quelle fréquence durant l\'année écoulée avez-vous eu besoin d\'un premier verre le matin pour vous remettre d\'une forte consommation ?',
      'À quelle fréquence durant l\'année écoulée avez-vous éprouvé un sentiment de culpabilité ou de remords après avoir bu ?',
      'À quelle fréquence durant l\'année écoulée n\'avez-vous pas pu vous souvenir de la veille à cause de l\'alcool ?',
      'Vous ou quelqu\'un d\'autre avez-vous été blessé suite à votre consommation d\'alcool ?',
      'Un parent, ami, médecin ou autre professionnel de santé s\'est-il inquiété de votre consommation ou vous a-t-il suggéré de la réduire ?'
    ],
    O:[
      [{v:0,l:'Jamais (0)'},{v:1,l:'Une fois par mois ou moins (1)'},{v:2,l:'2–4 fois par mois (2)'},{v:3,l:'2–3 fois par semaine (3)'},{v:4,l:'4 fois ou plus par semaine (4)'}],
      [{v:0,l:'1 ou 2 (0)'},{v:1,l:'3 ou 4 (1)'},{v:2,l:'5 ou 6 (2)'},{v:3,l:'7 à 9 (3)'},{v:4,l:'10 ou plus (4)'}],
      [{v:0,l:'Jamais (0)'},{v:1,l:'Moins d\'une fois par mois (1)'},{v:2,l:'Mensuellement (2)'},{v:3,l:'Hebdomadairement (3)'},{v:4,l:'Quotidien ou presque (4)'}],
      [{v:0,l:'Jamais (0)'},{v:1,l:'Moins d\'une fois par mois (1)'},{v:2,l:'Mensuellement (2)'},{v:3,l:'Hebdomadairement (3)'},{v:4,l:'Quotidien ou presque (4)'}],
      [{v:0,l:'Jamais (0)'},{v:1,l:'Moins d\'une fois par mois (1)'},{v:2,l:'Mensuellement (2)'},{v:3,l:'Hebdomadairement (3)'},{v:4,l:'Quotidien ou presque (4)'}],
      [{v:0,l:'Jamais (0)'},{v:1,l:'Moins d\'une fois par mois (1)'},{v:2,l:'Mensuellement (2)'},{v:3,l:'Hebdomadairement (3)'},{v:4,l:'Quotidien ou presque (4)'}],
      [{v:0,l:'Jamais (0)'},{v:1,l:'Moins d\'une fois par mois (1)'},{v:2,l:'Mensuellement (2)'},{v:3,l:'Hebdomadairement (3)'},{v:4,l:'Quotidien ou presque (4)'}],
      [{v:0,l:'Jamais (0)'},{v:1,l:'Moins d\'une fois par mois (1)'},{v:2,l:'Mensuellement (2)'},{v:3,l:'Hebdomadairement (3)'},{v:4,l:'Quotidien ou presque (4)'}],
      [{v:0,l:'Non (0)'},{v:2,l:'Oui, mais pas durant la dernière année (2)'},{v:4,l:'Oui, durant la dernière année (4)'}],
      [{v:0,l:'Non (0)'},{v:2,l:'Oui, mais pas durant la dernière année (2)'},{v:4,l:'Oui, durant la dernière année (4)'}]
    ]
  },
  asrs:{
    timeRef:'Au cours des 6 derniers mois, à quelle fréquence avez-vous vécu les situations suivantes ?',
    Q:[
      'À quelle fréquence avez-vous des difficultés à finir les derniers détails d\'un projet une fois les parties difficiles terminées ?',
      'À quelle fréquence avez-vous des difficultés à mettre les choses en ordre quand vous devez faire une tâche nécessitant de l\'organisation ?',
      'À quelle fréquence avez-vous des problèmes pour vous souvenir de rendez-vous ou d\'obligations ?',
      'Quand vous avez une tâche qui demande beaucoup de réflexion, à quelle fréquence l\'évitez-vous ou en retardez-vous le début ?',
      'À quelle fréquence vous agitez-vous ou bougez-vous mains ou pieds quand vous devez rester assis longtemps ?',
      'À quelle fréquence vous sentez-vous trop actif et obligé de faire des choses, comme poussé par un moteur ?',
      'À quelle fréquence faites-vous des erreurs d\'inattention en travaillant sur un projet ennuyeux ou difficile ?',
      'À quelle fréquence avez-vous des difficultés à maintenir votre attention sur un travail ennuyeux ou répétitif ?',
      'À quelle fréquence avez-vous des difficultés à vous concentrer sur ce qu\'on vous dit, même quand on vous parle directement ?',
      'À quelle fréquence égarez-vous ou avez-vous du mal à trouver des choses à la maison ou au travail ?',
      'À quelle fréquence êtes-vous distrait par l\'activité ou le bruit autour de vous ?',
      'À quelle fréquence quittez-vous votre place en réunion ou dans des situations où vous êtes censé rester assis ?',
      'À quelle fréquence vous sentez-vous agité ou nerveux ?',
      'À quelle fréquence avez-vous du mal à vous détendre quand vous avez du temps libre ?',
      'À quelle fréquence vous trouvez-vous à trop parler dans des situations sociales ?',
      'Dans une conversation, à quelle fréquence vous trouvez-vous à terminer les phrases des gens à qui vous parlez avant qu\'ils ne puissent les terminer ?',
      'À quelle fréquence avez-vous des difficultés à attendre votre tour dans des situations qui l\'exigent ?',
      'À quelle fréquence interrompez-vous les autres quand ils sont occupés ?'
    ],
    O:[{v:0,l:'Jamais (0)'},{v:1,l:'Rarement (1)'},{v:2,l:'Parfois (2)'},{v:3,l:'Souvent (3)'},{v:4,l:'Très souvent (4)'}]
  },
  hachinski:{
    timeRef:'Évaluation clinique : pour chaque caractéristique, cochez Absent ou Présent selon l\'histoire et l\'examen.',
    Q:[
      'Début brusque du déclin cognitif',
      'Déclin par paliers (aggravation soudaine suivie d\'un plateau)',
      'Évolution fluctuante (jours bons et mauvais)',
      'Confusion nocturne',
      'Préservation relative de la personnalité',
      'Dépression',
      'Plaintes somatiques',
      'Incontinence émotionnelle (rire ou pleurs soudains)',
      'Antécédents d\'hypertension artérielle',
      'Antécédents d\'AVC',
      'Signes d\'athérosclérose associée (p. ex. périphérique ou coronarienne)',
      'Symptômes neurologiques focaux (transitoires ou persistants)',
      'Signes neurologiques focaux à l\'examen'
    ],
    _W:[2,1,2,1,1,1,1,1,1,2,1,2,2],
    O:null
  },
  katz:{
    timeRef:'Pour chaque activité, cochez si le patient est INDÉPENDANT (fait sans aide) ou DÉPENDANT (nécessite aide, supervision ou ne le fait pas).',
    Q:[
      'BAIN — se lave complètement seul, ou n\'a besoin d\'aide que pour une partie du corps (p. ex. dos, parties génitales, membre handicapé)',
      'HABILLAGE — choisit ses vêtements, les sort du placard et s\'habille (peut nécessiter de l\'aide pour les lacets)',
      'TOILETTE — va aux toilettes, s\'assoit et se lève, ajuste ses vêtements, fait son hygiène sans aide',
      'TRANSFERT — se lève du lit ou de la chaise sans aide extérieure (aides mécaniques autorisées)',
      'CONTINENCE — contrôle complètement la miction et la défécation',
      'ALIMENTATION — mange seul depuis l\'assiette (la préparation des repas peut être faite par une autre personne)'
    ],
    O:[{v:0,l:'Dépendant (0) — a besoin d\'aide'},{v:1,l:'Indépendant (1) — sans supervision/direction'}]
  },
  lawton:{
    timeRef:'Pour chaque activité instrumentale, cochez si le patient est INDÉPENDANT ou DÉPENDANT (ne peut pas le faire, ou nécessite de l\'aide). Cotation unisexe 0–8.',
    Q:[
      'TÉLÉPHONE — utilise le téléphone de sa propre initiative (cherche les numéros, compose, répond)',
      'COURSES — fait toutes les courses nécessaires de façon autonome',
      'PRÉPARATION DES REPAS — planifie, prépare et sert des repas adéquats de façon autonome',
      'MÉNAGE — entretient le domicile seul ou avec une aide occasionnelle (p. ex. gros travaux)',
      'LESSIVE — lave entièrement son linge',
      'TRANSPORT — se déplace de façon autonome en transport public, conduit sa propre voiture ou organise ses voyages',
      'MÉDICATION — est responsable de prendre ses médicaments aux bonnes doses et horaires',
      'FINANCES — gère ses affaires financières de façon autonome (budget, paiement des factures, banque)'
    ],
    O:[{v:0,l:'Dépendant (0) — ne peut pas / a besoin d\'aide'},{v:1,l:'Indépendant (1)'}]
  }
};
// Build Hachinski per-item options from weights
QUESTIONNAIRES_FR.hachinski.O=QUESTIONNAIRES_FR.hachinski.Q.map(function(_,i){
  return [{v:0,l:'Absent (0)'},{v:QUESTIONNAIRES_FR.hachinski._W[i],l:'Présent ('+QUESTIONNAIRES_FR.hachinski._W[i]+')'}];
});

// Result-page strings — interpretation labels, classifications (French).
var RESULT_STRINGS_FR={
  phq9:{
    interp_minimal:'Minimale',interp_mild:'Légère',interp_moderate:'Modérée',interp_modsev:'Modérément sévère',interp_severe:'Sévère',
    suffix:' dépression. ',
    above_thresh:'Score ≥10 — seuil de dépression majeure probable.',
    below_thresh:'Score <10 n\'atteint pas le seuil dans ce dépistage.',
    item9_flag:' L\'item 9 cote ',
    item9_after:' — un suivi clinique est recommandé.',
    pos:'POSITIF',neg:'négatif',
    lbl_score:'Score PHQ-9',lbl_screen:'Dépistage (≥10)'
  },
  gad7:{
    interp_minimal:'Minimale',interp_mild:'Légère',interp_moderate:'Modérée',interp_severe:'Sévère',
    suffix:' anxiété. ',
    above_thresh:'Score ≥10 — seuil de trouble anxieux généralisé probable.',
    below_thresh:'Score <10 n\'atteint pas le seuil dans ce dépistage.',
    pos:'POSITIF',neg:'négatif',
    lbl_score:'Score GAD-7',lbl_screen:'Dépistage (≥10)'
  },
  pcl5:{
    suffix_below:'Score <33 n\'atteint pas le seuil de TSPT probable.',
    suffix_above:'Score ≥33 indique un TSPT probable — évaluation clinique nécessaire.',
    pos:'TSPT PROBABLE',neg:'non atteint',
    lbl_score:'Score PCL-5',lbl_screen:'Dépistage (≥33)',
    lbl_intr:'Intrusion',lbl_avoid:'Évitement',lbl_cog:'Cognition-humeur',lbl_arouse:'Excitation'
  },
  audit:{
    interp_low:'Risque faible',interp_haz:'Consommation dangereuse',interp_harm:'Consommation nocive',interp_dep:'Dépendance probable',
    above_8:'Score ≥8 indique une consommation d\'alcool dangereuse ou nocive.',
    above_20:'Score ≥20 indique une dépendance alcoolique probable — évaluation clinique recommandée.',
    below_8:'Score <8 indique une consommation à faible risque.',
    pos:'POSITIF',neg:'négatif',
    lbl_score:'Score AUDIT',lbl_screen:'Dépistage (≥8)'
  },
  asrs:{
    above:'Score ≥4 en Partie A — dépistage positif de TDAH adulte probable (sensibilité 68,7 %, spécificité 99,5 %).',
    below:'Score <4 n\'atteint pas le seuil de la Partie A de l\'ASRS.',
    pos:'POSITIF',neg:'négatif',
    lbl_partA:'Partie A positive',lbl_screen:'Dépistage (≥4)',lbl_total:'Score total'
  },
  hachinski:{
    cat_degen:'Dégénérative primaire (type Alzheimer)',
    cat_mixed:'Mixte / indéterminée',
    cat_vasc:'Démence multi-infarctus (vasculaire)',
    interp_degen:'Score ≤4 est cohérent avec une démence dégénérative primaire (p. ex. maladie d\'Alzheimer). Contribution cérébrovasculaire comme étiologie dominante peu probable.',
    interp_mixed:'Score 5–6 tombe dans la zone indéterminée — des caractéristiques de pathologie vasculaire et dégénérative peuvent coexister (démence mixte). Neuro-imagerie et évaluation complémentaire recommandées.',
    interp_vasc:'Score ≥7 est cohérent avec une démence multi-infarctus/vasculaire. La maladie cérébrovasculaire est probablement un contributeur significatif ; à confirmer par neuro-imagerie (IRM/TDM pour infarctus, leucoaraïose).',
    lbl_total:'Total HIS',lbl_range:'Plage',lbl_class:'Classification'
  },
  katz:{
    cat_full:'Fonction complète',
    cat_mild:'Atteinte légère à modérée',
    cat_mod:'Atteinte modérée',
    cat_sev:'Atteinte sévère',
    interp_6:'Score 6/6 — indépendance complète dans les activités de base de la vie quotidienne. Aucune atteinte des AVQ basiques détectée.',
    interp_45:'Le score indique une atteinte fonctionnelle légère à modérée dans les AVQ basiques. Identifier les déficits spécifiques pour une intervention ciblée (p. ex. aides au bain, dispositifs d\'habillage). Envisager Lawton AIVQ pour le déclin fonctionnel plus précoce.',
    interp_3:'Le score indique une atteinte fonctionnelle modérée — le patient nécessite de l\'aide pour plusieurs AVQ basiques. Planification des soins et soutien aux aidants recommandés.',
    interp_low:'Le score indique une atteinte sévère des AVQ basiques. Le patient dépend de l\'aide pour la plupart des activités fondamentales d\'auto-soin. Indique une charge substantielle pour l\'aidant / peut nécessiter une prise en charge institutionnelle.',
    lbl_total:'Total Katz AVQ',lbl_dep:'Activités dépendantes',lbl_class:'Classification'
  },
  lawton:{
    cat_full:'Fonction AIVQ complète',
    cat_mild:'Atteinte légère',
    cat_mod:'Atteinte modérée',
    cat_sev:'Atteinte sévère',
    interp_8:'Score 8/8 — indépendance complète dans les activités instrumentales. Aucune atteinte des AIVQ détectée.',
    interp_67:'Le score indique une atteinte légère des AIVQ. Identifier les déficits spécifiques — le déclin précoce des AIVQ est un marqueur sensible du TCL / démence précoce. Évaluation cognitive pouvant être justifiée.',
    interp_mid:'Le score indique une atteinte modérée des AIVQ. Le patient ne peut pas vivre de manière totalement autonome dans la communauté sans soutien. Aidant ou services à domicile probablement nécessaires.',
    interp_low:'Le score indique une atteinte sévère des AIVQ. La vie autonome en communauté n\'est pas faisable ; envisager un niveau supérieur de supervision ou de soins.',
    lbl_total:'Total Lawton AIVQ',lbl_dep:'AIVQ dépendantes',lbl_class:'Classification'
  }
};

// I18N: attach French late constants
if(typeof I18N !== 'undefined' && I18N.fr){
  I18N.fr.questionnaires = QUESTIONNAIRES_FR;
  I18N.fr.results = RESULT_STRINGS_FR;
}

// ── German questionnaire translations ──────────────────
// Unofficial translations — for validated clinical scoring against published
// norms, use publisher-validated German translations (PHQ-9/GAD-7 →
// phqscreeners.com; PCL-5 → National Center for PTSD; AUDIT → WHO; ASRS → WHO).
var QUESTIONNAIRES_DE={
  phq9:{
    timeRef:'Wie oft fühlten Sie sich im Verlauf der letzten 2 Wochen durch die folgenden Beschwerden beeinträchtigt?',
    Q:[
      'Wenig Interesse oder Freude an Ihren Tätigkeiten',
      'Niedergeschlagenheit, Schwermut oder Hoffnungslosigkeit',
      'Schwierigkeiten ein- oder durchzuschlafen, oder vermehrter Schlaf',
      'Müdigkeit oder Gefühl, keine Energie zu haben',
      'Verminderter Appetit oder übermäßiges Bedürfnis zu essen',
      'Schlechte Meinung von sich selbst; Gefühl, ein Versager zu sein oder die Familie enttäuscht zu haben',
      'Schwierigkeiten, sich zu konzentrieren, z. B. beim Lesen oder Fernsehen',
      'Verlangsamung der Bewegungen oder Sprache — oder im Gegenteil Unruhe, vermehrter Bewegungsdrang',
      'Gedanken, dass Sie lieber tot wären oder sich Leid zufügen möchten'
    ],
    O:[{v:0,l:'Überhaupt nicht (0)'},{v:1,l:'An einzelnen Tagen (1)'},{v:2,l:'An mehr als der Hälfte der Tage (2)'},{v:3,l:'Beinahe jeden Tag (3)'}]
  },
  gad7:{
    timeRef:'Wie oft fühlten Sie sich im Verlauf der letzten 2 Wochen durch die folgenden Beschwerden beeinträchtigt?',
    Q:[
      'Nervosität, Ängstlichkeit oder Anspannung',
      'Nicht in der Lage sein, Sorgen zu stoppen oder zu kontrollieren',
      'Übermäßige Sorgen bezüglich verschiedener Angelegenheiten',
      'Schwierigkeiten zu entspannen',
      'Rastlosigkeit, sodass Stillsitzen schwerfällt',
      'Schnelle Verärgerung oder Gereiztheit',
      'Gefühl der Angst, so als würde etwas Schlimmes passieren'
    ],
    O:[{v:0,l:'Überhaupt nicht (0)'},{v:1,l:'An einzelnen Tagen (1)'},{v:2,l:'An mehr als der Hälfte der Tage (2)'},{v:3,l:'Beinahe jeden Tag (3)'}]
  },
  pcl5:{
    timeRef:'Wie sehr haben Sie im letzten Monat unter den folgenden Problemen in Reaktion auf das belastende Ereignis gelitten?',
    Q:[
      'Wiederholtes, beunruhigendes und ungewolltes Erinnern an das belastende Ereignis',
      'Wiederholte beunruhigende Träume vom belastenden Ereignis',
      'Plötzliches Gefühl oder Verhalten, als würde das Ereignis erneut passieren',
      'Sehr aufgewühlt sein, wenn etwas an das Ereignis erinnerte',
      'Starke körperliche Reaktionen, wenn etwas an das Ereignis erinnerte',
      'Vermeiden von Erinnerungen, Gedanken oder Gefühlen über das Ereignis',
      'Vermeiden äußerer Erinnerungen an das Ereignis',
      'Schwierigkeiten, sich an wichtige Teile des Ereignisses zu erinnern',
      'Stark negative Überzeugungen über sich selbst, andere oder die Welt',
      'Sich selbst oder andere für das Ereignis beschuldigen',
      'Starke negative Gefühle wie Furcht, Schrecken, Wut, Schuld oder Scham',
      'Verlust von Interesse an Aktivitäten, die früher Freude bereiteten',
      'Gefühl von Distanz oder Trennung von anderen Menschen',
      'Schwierigkeiten, positive Gefühle zu erleben',
      'Reizbares Verhalten oder Wutausbrüche',
      'Übermäßiges Eingehen von Risiken oder Verhalten, das Schaden verursachen könnte',
      'Sehr wachsam oder vorsichtig sein',
      'Zusammenzucken oder sehr nervös sein',
      'Konzentrationsschwierigkeiten',
      'Schwierigkeiten ein- oder durchzuschlafen'
    ],
    O:[{v:0,l:'Überhaupt nicht (0)'},{v:1,l:'Ein wenig (1)'},{v:2,l:'Mäßig (2)'},{v:3,l:'Ziemlich (3)'},{v:4,l:'Sehr stark (4)'}]
  },
  audit:{
    timeRef:'Bitte kreuzen Sie die Antwort an, die Ihren Alkoholkonsum am besten beschreibt:',
    Q:[
      'Wie oft trinken Sie alkoholische Getränke?',
      'Wenn Sie alkoholische Getränke trinken, wie viele Einheiten trinken Sie dann typischerweise an einem Tag?',
      'Wie oft tranken Sie im letzten Jahr 6 oder mehr Einheiten (Frau) bzw. 8 oder mehr (Mann) bei einer Gelegenheit?',
      'Wie oft konnten Sie im letzten Jahr nicht aufhören zu trinken, nachdem Sie einmal angefangen hatten?',
      'Wie oft haben Sie es im letzten Jahr wegen des Trinkens nicht geschafft, das zu tun, was normalerweise von Ihnen erwartet wurde?',
      'Wie oft brauchten Sie im letzten Jahr morgens ein alkoholisches Getränk, um sich nach einem reichlichen Konsum zu erholen?',
      'Wie oft hatten Sie im letzten Jahr Schuld- oder Reuegefühle nach dem Trinken?',
      'Wie oft konnten Sie sich im letzten Jahr nicht an den Vorabend erinnern, weil Sie getrunken hatten?',
      'Wurden Sie oder eine andere Person infolge Ihres Alkoholkonsums verletzt?',
      'Hat ein Verwandter, Freund, Arzt oder andere Fachperson sich über Ihren Konsum Sorgen gemacht oder Ihnen geraten, ihn zu reduzieren?'
    ],
    O:[
      [{v:0,l:'Nie (0)'},{v:1,l:'Einmal im Monat oder weniger (1)'},{v:2,l:'2–4 Mal pro Monat (2)'},{v:3,l:'2–3 Mal pro Woche (3)'},{v:4,l:'4 oder mehr Mal pro Woche (4)'}],
      [{v:0,l:'1 oder 2 (0)'},{v:1,l:'3 oder 4 (1)'},{v:2,l:'5 oder 6 (2)'},{v:3,l:'7 bis 9 (3)'},{v:4,l:'10 oder mehr (4)'}],
      [{v:0,l:'Nie (0)'},{v:1,l:'Weniger als einmal im Monat (1)'},{v:2,l:'Monatlich (2)'},{v:3,l:'Wöchentlich (3)'},{v:4,l:'Täglich oder fast täglich (4)'}],
      [{v:0,l:'Nie (0)'},{v:1,l:'Weniger als einmal im Monat (1)'},{v:2,l:'Monatlich (2)'},{v:3,l:'Wöchentlich (3)'},{v:4,l:'Täglich oder fast täglich (4)'}],
      [{v:0,l:'Nie (0)'},{v:1,l:'Weniger als einmal im Monat (1)'},{v:2,l:'Monatlich (2)'},{v:3,l:'Wöchentlich (3)'},{v:4,l:'Täglich oder fast täglich (4)'}],
      [{v:0,l:'Nie (0)'},{v:1,l:'Weniger als einmal im Monat (1)'},{v:2,l:'Monatlich (2)'},{v:3,l:'Wöchentlich (3)'},{v:4,l:'Täglich oder fast täglich (4)'}],
      [{v:0,l:'Nie (0)'},{v:1,l:'Weniger als einmal im Monat (1)'},{v:2,l:'Monatlich (2)'},{v:3,l:'Wöchentlich (3)'},{v:4,l:'Täglich oder fast täglich (4)'}],
      [{v:0,l:'Nie (0)'},{v:1,l:'Weniger als einmal im Monat (1)'},{v:2,l:'Monatlich (2)'},{v:3,l:'Wöchentlich (3)'},{v:4,l:'Täglich oder fast täglich (4)'}],
      [{v:0,l:'Nein (0)'},{v:2,l:'Ja, aber nicht im letzten Jahr (2)'},{v:4,l:'Ja, im letzten Jahr (4)'}],
      [{v:0,l:'Nein (0)'},{v:2,l:'Ja, aber nicht im letzten Jahr (2)'},{v:4,l:'Ja, im letzten Jahr (4)'}]
    ]
  },
  asrs:{
    timeRef:'Wie oft ist Folgendes in den letzten 6 Monaten bei Ihnen aufgetreten?',
    Q:[
      'Wie oft fällt es Ihnen schwer, die letzten Details eines Projekts fertigzustellen, nachdem die schwierigen Teile erledigt sind?',
      'Wie oft fällt es Ihnen schwer, Dinge in Ordnung zu bringen, wenn Sie eine Aufgabe zu erledigen haben, die Organisation erfordert?',
      'Wie oft haben Sie Probleme, sich an Termine oder Verpflichtungen zu erinnern?',
      'Wenn Sie eine Aufgabe haben, die viel Nachdenken erfordert, wie oft vermeiden Sie sie oder schieben den Beginn auf?',
      'Wie oft zappeln Sie oder bewegen Hände oder Füße, wenn Sie länger sitzen müssen?',
      'Wie oft fühlen Sie sich übermäßig aktiv und gezwungen Dinge zu tun, als ob Sie von einem Motor angetrieben wären?',
      'Wie oft machen Sie aus Unachtsamkeit Fehler, wenn Sie an einem langweiligen oder schwierigen Projekt arbeiten?',
      'Wie oft fällt es Ihnen schwer, die Aufmerksamkeit aufrechtzuerhalten, wenn Sie eine langweilige oder repetitive Arbeit machen?',
      'Wie oft fällt es Ihnen schwer, sich auf das zu konzentrieren, was Ihnen jemand sagt, auch wenn man direkt mit Ihnen spricht?',
      'Wie oft verlegen Sie Dinge oder haben Schwierigkeiten, Dinge zu Hause oder bei der Arbeit zu finden?',
      'Wie oft werden Sie durch Aktivität oder Lärm um Sie herum abgelenkt?',
      'Wie oft verlassen Sie Ihren Sitzplatz bei Besprechungen oder in Situationen, in denen Sie sitzen bleiben sollten?',
      'Wie oft fühlen Sie sich unruhig oder zappelig?',
      'Wie oft fällt es Ihnen schwer, sich zu entspannen, wenn Sie Zeit für sich haben?',
      'Wie oft ertappen Sie sich beim übermäßigen Reden in sozialen Situationen?',
      'Wie oft ertappen Sie sich in einem Gespräch dabei, die Sätze von Personen zu beenden, bevor diese fertig sind?',
      'Wie oft fällt es Ihnen schwer, in Situationen abzuwarten, in denen Abwarten erforderlich ist?',
      'Wie oft unterbrechen Sie andere, wenn diese beschäftigt sind?'
    ],
    O:[{v:0,l:'Nie (0)'},{v:1,l:'Selten (1)'},{v:2,l:'Manchmal (2)'},{v:3,l:'Oft (3)'},{v:4,l:'Sehr oft (4)'}]
  },
  hachinski:{
    timeRef:'Klinische Beurteilung: Kreuzen Sie für jedes Merkmal Abwesend oder Vorhanden nach Anamnese und Untersuchung an.',
    Q:[
      'Plötzlicher Beginn der kognitiven Verschlechterung',
      'Stufenweise Verschlechterung (akute Verschlimmerung gefolgt von Plateau)',
      'Schwankender Verlauf (gute und schlechte Tage)',
      'Nächtliche Verwirrtheit',
      'Relative Erhaltung der Persönlichkeit',
      'Depression',
      'Somatische Beschwerden',
      'Affektinkontinenz (plötzliches Lachen oder Weinen)',
      'Hypertonie in der Anamnese',
      'Schlaganfälle in der Anamnese',
      'Zeichen begleitender Atherosklerose (z. B. peripher oder koronar)',
      'Fokale neurologische Symptome (transient oder persistent)',
      'Fokale neurologische Zeichen in der Untersuchung'
    ],
    _W:[2,1,2,1,1,1,1,1,1,2,1,2,2],
    O:null
  },
  katz:{
    timeRef:'Kreuzen Sie für jede Aktivität an, ob der Patient UNABHÄNGIG (ohne Hilfe ausführt) oder ABHÄNGIG (benötigt Hilfe, Aufsicht oder führt nicht aus) ist.',
    Q:[
      'BADEN — wäscht sich vollständig selbst oder benötigt nur Hilfe bei einem Körperteil (z. B. Rücken, Genitalien, behindertes Glied)',
      'ANKLEIDEN — wählt Kleidung, holt sie aus dem Schrank und zieht sich an (kann Hilfe beim Schnüren brauchen)',
      'TOILETTE — geht zur Toilette, setzt und steht ohne Hilfe auf, ordnet Kleidung, hygienisiert sich',
      'TRANSFER — steht aus Bett oder Stuhl ohne fremde Hilfe auf (mechanische Hilfen erlaubt)',
      'KONTINENZ — kontrolliert Miktion und Defäkation vollständig',
      'ERNÄHRUNG — isst selbstständig vom Teller (Mahlzeitenzubereitung kann durch andere erfolgen)'
    ],
    O:[{v:0,l:'Abhängig (0) — benötigt Hilfe'},{v:1,l:'Unabhängig (1) — ohne Aufsicht/Anleitung'}]
  },
  lawton:{
    timeRef:'Kreuzen Sie für jede instrumentelle Aktivität an, ob der Patient UNABHÄNGIG oder ABHÄNGIG ist (kann nicht ausführen oder benötigt Hilfe). Unisex-Bewertung 0–8.',
    Q:[
      'TELEFON — nutzt das Telefon aus eigener Initiative (sucht Nummern, wählt, antwortet)',
      'EINKAUFEN — erledigt alle notwendigen Einkäufe selbstständig',
      'ESSENSZUBEREITUNG — plant, bereitet zu und serviert angemessene Mahlzeiten selbstständig',
      'HAUSHALTSFÜHRUNG — führt den Haushalt allein oder mit gelegentlicher Hilfe (z. B. schwere Arbeiten)',
      'WÄSCHE — wäscht die gesamte Wäsche',
      'TRANSPORT — bewegt sich selbstständig mit öffentlichen Verkehrsmitteln, fährt eigenes Auto oder organisiert Reisen',
      'MEDIKATION — ist verantwortlich für die Einnahme der Medikamente in korrekten Dosen und Zeiten',
      'FINANZEN — verwaltet finanzielle Angelegenheiten selbstständig (Budget, Rechnungen zahlen, Bank)'
    ],
    O:[{v:0,l:'Abhängig (0) — kann nicht / benötigt Hilfe'},{v:1,l:'Unabhängig (1)'}]
  }
};
// Build Hachinski per-item options from weights
QUESTIONNAIRES_DE.hachinski.O=QUESTIONNAIRES_DE.hachinski.Q.map(function(_,i){
  return [{v:0,l:'Abwesend (0)'},{v:QUESTIONNAIRES_DE.hachinski._W[i],l:'Vorhanden ('+QUESTIONNAIRES_DE.hachinski._W[i]+')'}];
});

// Result-page strings — interpretation labels, classifications (German).
var RESULT_STRINGS_DE={
  phq9:{
    interp_minimal:'Minimale',interp_mild:'Leichte',interp_moderate:'Mittelgradige',interp_modsev:'Mittelschwere',interp_severe:'Schwere',
    suffix:' Depression. ',
    above_thresh:'Punktzahl ≥10 — Schwelle für wahrscheinliche Major Depression.',
    below_thresh:'Punktzahl <10 erreicht in diesem Screening die Schwelle nicht.',
    item9_flag:' Item 9 bewertet ',
    item9_after:' — klinische Nachsorge empfohlen.',
    pos:'POSITIV',neg:'negativ',
    lbl_score:'PHQ-9-Punktzahl',lbl_screen:'Screening (≥10)'
  },
  gad7:{
    interp_minimal:'Minimale',interp_mild:'Leichte',interp_moderate:'Mittelgradige',interp_severe:'Schwere',
    suffix:' Angst. ',
    above_thresh:'Punktzahl ≥10 — Schwelle für wahrscheinliche generalisierte Angststörung.',
    below_thresh:'Punktzahl <10 erreicht in diesem Screening die Schwelle nicht.',
    pos:'POSITIV',neg:'negativ',
    lbl_score:'GAD-7-Punktzahl',lbl_screen:'Screening (≥10)'
  },
  pcl5:{
    suffix_below:'Punktzahl <33 erreicht die Schwelle für wahrscheinliche PTBS nicht.',
    suffix_above:'Punktzahl ≥33 weist auf wahrscheinliche PTBS hin — klinische Beurteilung erforderlich.',
    pos:'PTBS WAHRSCHEINLICH',neg:'nicht erreicht',
    lbl_score:'PCL-5-Punktzahl',lbl_screen:'Screening (≥33)',
    lbl_intr:'Intrusion',lbl_avoid:'Vermeidung',lbl_cog:'Kognition-Stimmung',lbl_arouse:'Erregung'
  },
  audit:{
    interp_low:'Niedriges Risiko',interp_haz:'Gefährlicher Konsum',interp_harm:'Schädlicher Konsum',interp_dep:'Wahrscheinliche Abhängigkeit',
    above_8:'Punktzahl ≥8 weist auf gefährlichen oder schädlichen Alkoholkonsum hin.',
    above_20:'Punktzahl ≥20 weist auf wahrscheinliche Alkoholabhängigkeit hin — klinische Beurteilung empfohlen.',
    below_8:'Punktzahl <8 weist auf risikoarmen Konsum hin.',
    pos:'POSITIV',neg:'negativ',
    lbl_score:'AUDIT-Punktzahl',lbl_screen:'Screening (≥8)'
  },
  asrs:{
    above:'Punktzahl ≥4 in Teil A — positives Screening für wahrscheinliches Erwachsenen-ADHS (Sensitivität 68,7 %, Spezifität 99,5 %).',
    below:'Punktzahl <4 erreicht die Schwelle von Teil A des ASRS nicht.',
    pos:'POSITIV',neg:'negativ',
    lbl_partA:'Teil A positiv',lbl_screen:'Screening (≥4)',lbl_total:'Gesamtpunktzahl'
  },
  hachinski:{
    cat_degen:'Primär degenerativ (Alzheimer-Typ)',
    cat_mixed:'Gemischt / unbestimmt',
    cat_vasc:'Multiinfarktdemenz (vaskulär)',
    interp_degen:'Punktzahl ≤4 ist mit primär degenerativer Demenz (z. B. Alzheimer-Krankheit) vereinbar. Zerebrovaskulärer Beitrag als dominante Ätiologie unwahrscheinlich.',
    interp_mixed:'Punktzahl 5–6 liegt im unbestimmten Bereich — Merkmale vaskulärer und degenerativer Pathologie können koexistieren (gemischte Demenz). Neurobildgebung und ergänzende Untersuchung empfohlen.',
    interp_vasc:'Punktzahl ≥7 ist mit Multiinfarkt-/vaskulärer Demenz vereinbar. Zerebrovaskuläre Erkrankung ist wahrscheinlich ein signifikanter Beitrag; durch Neurobildgebung bestätigen (MRT/CT für Infarkte, Leukoaraiose).',
    lbl_total:'HIS gesamt',lbl_range:'Bereich',lbl_class:'Klassifikation'
  },
  katz:{
    cat_full:'Volle Funktion',
    cat_mild:'Leichte–mäßige Beeinträchtigung',
    cat_mod:'Mäßige Beeinträchtigung',
    cat_sev:'Schwere Beeinträchtigung',
    interp_6:'Punktzahl 6/6 — vollständige Unabhängigkeit in grundlegenden Aktivitäten des täglichen Lebens. Keine ADL-Beeinträchtigung erkannt.',
    interp_45:'Die Punktzahl weist auf leichte bis mäßige funktionelle Beeinträchtigung der grundlegenden ADL hin. Spezifische Defizite für gezielte Intervention identifizieren (z. B. Badehilfen, Ankleidungshilfen). Lawton IADL für früheren funktionellen Abbau erwägen.',
    interp_3:'Die Punktzahl weist auf mäßige funktionelle Beeinträchtigung hin — der Patient benötigt Hilfe bei mehreren grundlegenden ADL. Pflegeplanung und Angehörigenunterstützung empfohlen.',
    interp_low:'Die Punktzahl weist auf schwere Beeinträchtigung der grundlegenden ADL hin. Der Patient ist bei den meisten grundlegenden Selbstpflegeaktivitäten auf Hilfe angewiesen. Weist auf erhebliche Angehörigenbelastung hin / kann institutionelle Pflege erfordern.',
    lbl_total:'Katz-ADL gesamt',lbl_dep:'Abhängige Aktivitäten',lbl_class:'Klassifikation'
  },
  lawton:{
    cat_full:'Volle IADL-Funktion',
    cat_mild:'Leichte Beeinträchtigung',
    cat_mod:'Mäßige Beeinträchtigung',
    cat_sev:'Schwere Beeinträchtigung',
    interp_8:'Punktzahl 8/8 — vollständige Unabhängigkeit in instrumentellen Aktivitäten. Keine IADL-Beeinträchtigung erkannt.',
    interp_67:'Die Punktzahl weist auf leichte IADL-Beeinträchtigung hin. Spezifische Defizite identifizieren — früher IADL-Abbau ist ein sensitiver Marker für leichte kognitive Beeinträchtigung / frühe Demenz. Kognitive Beurteilung kann gerechtfertigt sein.',
    interp_mid:'Die Punktzahl weist auf mäßige IADL-Beeinträchtigung hin. Der Patient kann ohne Unterstützung nicht völlig unabhängig in der Gemeinschaft leben. Pflegeperson oder häusliche Dienste wahrscheinlich erforderlich.',
    interp_low:'Die Punktzahl weist auf schwere IADL-Beeinträchtigung hin. Unabhängiges Leben in der Gemeinschaft nicht machbar; höhere Aufsichts- oder Pflegestufe erwägen.',
    lbl_total:'Lawton-IADL gesamt',lbl_dep:'Abhängige IADL',lbl_class:'Klassifikation'
  }
};

// I18N: attach German late constants
if(typeof I18N !== 'undefined' && I18N.de){
  I18N.de.questionnaires = QUESTIONNAIRES_DE;
  I18N.de.results = RESULT_STRINGS_DE;
}

// Per-language banner text for unofficial-translation warning shown above
// validated scales (PHQ-9, GAD-7, PCL-5, AUDIT, ASRS, Hachinski, Katz, Lawton).
// Add more languages here when translated questionnaires are added.
var UNOFFICIAL_BANNERS = {
  en: { title:'UNOFFICIAL TRANSLATION',
        body:'This translation is provided for interface convenience only. Do not use scores for comparison against published norms or clinical diagnosis. For research or clinical use, obtain the publisher-validated translation.' },
  es: { title:'TRADUCCIÓN NO OFICIAL',
        body:'Esta traducción se proporciona solo por conveniencia de interfaz. No utilices las puntuaciones para comparar con normas publicadas ni para diagnóstico clínico. Para uso investigador o clínico, obtén la traducción validada por el editor.' },
  fr: { title:'TRADUCTION NON OFFICIELLE',
        body:'Cette traduction est fournie uniquement pour la commodité de l\'interface. N\'utilisez pas les scores pour comparer avec les normes publiées ou pour un diagnostic clinique. Pour un usage de recherche ou clinique, obtenez la traduction validée par l\'éditeur.' },
  de: { title:'INOFFIZIELLE ÜBERSETZUNG',
        body:'Diese Übersetzung dient nur der Benutzeroberflächen-Bequemlichkeit. Verwenden Sie die Punktwerte nicht zum Vergleich mit veröffentlichten Normen oder zur klinischen Diagnose. Beziehen Sie für Forschungs- oder klinische Anwendungen die vom Herausgeber validierte Übersetzung.' },
  ru: { title:'НЕОФИЦИАЛЬНЫЙ ПЕРЕВОД',
        body:'Этот перевод предоставлен только для удобства интерфейса. Не используйте баллы для сравнения с опубликованными нормами или клинической диагностики. Для исследовательского или клинического применения используйте валидированный перевод от издателя шкалы.' }
};

// Localized version of scaleRender — chooses Q/O/timeRef by language and
// shows an unmissable "UNOFFICIAL TRANSLATION" banner for validated scales.
function localizedScale(id, defaultQ, defaultO, defaultTime){
  var Q=defaultQ, O=defaultO, tr=defaultTime;
  // Try I18N first (forward-compatible — any language with questionnaires.id
  // gets used). Falls back to defaults when not present.
  var loc = I18N[currentLang] && I18N[currentLang].questionnaires && I18N[currentLang].questionnaires[id];
  if(loc){ Q=loc.Q; O=loc.O; tr=loc.timeRef; }
  scaleRender(id, Q, O, tr);
  // Inject unofficial-translation banner for any non-English language that
  // has translated questionnaires for a validated scale. Banner text is
  // localized per language; falls back to English warning if no localized
  // banner text exists for the active language.
  if(typeof currentLang!=='undefined' && currentLang!=='en' && VALIDATED_SCALES[id] && I18N[currentLang] && I18N[currentLang].questionnaires && I18N[currentLang].questionnaires[id]){
    var container=$(id+'Items');
    if(container && !container.querySelector('.unofficial-banner')){
      var bannerText = UNOFFICIAL_BANNERS[currentLang] || UNOFFICIAL_BANNERS.en;
      var banner=document.createElement('div');
      banner.className='unofficial-banner';
      banner.style.cssText='background:rgba(224,92,92,0.12);border-left:3px solid #e05c5c;color:#e8a8a8;font-size:0.74rem;line-height:1.45;padding:8px 10px;margin-bottom:12px;font-family:"EB Garamond",serif;';
      banner.innerHTML='<strong style="color:#e8b0b0;letter-spacing:0.08em;font-size:0.72rem;font-family:\'Source Code Pro\',monospace;">⚠ '+bannerText.title+'</strong><br>'+bannerText.body;
      container.insertBefore(banner, container.firstChild);
    }
  }
}
// Helper for localized result-page strings (interpretation, classification).
// Reads from I18N[currentLang].results[id][key] with English fallback to null
// (caller substitutes its own English string).
function localizedResult(id, key){
  var bucket = I18N[currentLang] && I18N[currentLang].results && I18N[currentLang].results[id];
  if(bucket && bucket[key]) return bucket[key];
  return null; // caller falls back to English
}
// Result-page strings — interpretation labels, classifications, advisory text.
// Keys map to the same string slots used by the English code.
var RESULT_STRINGS_RU={
  phq9:{
    interp_minimal:'Минимальная',interp_mild:'Лёгкая',interp_moderate:'Умеренная',interp_modsev:'Умеренно-тяжёлая',interp_severe:'Тяжёлая',
    suffix:' депрессия. ',
    above_thresh:'Балл ≥10 — порог вероятной большой депрессии.',
    below_thresh:'Балл <10 не достигает порога по этому скринингу.',
    item9_flag:' Пункт 9 имеет балл ',
    item9_after:' — рекомендуется клиническое наблюдение.',
    pos:'ПОЛОЖИТЕЛЬНО',neg:'отрицательно',
    lbl_score:'Балл PHQ-9',lbl_screen:'Скрининг (≥10)'
  },
  gad7:{
    interp_minimal:'Минимальная',interp_mild:'Лёгкая',interp_moderate:'Умеренная',interp_severe:'Тяжёлая',
    suffix:' тревога. ',
    above_thresh:'Балл ≥10 — порог вероятного генерализованного тревожного расстройства.',
    below_thresh:'Балл <10 не достигает порога по этому скринингу.',
    pos:'ПОЛОЖИТЕЛЬНО',neg:'отрицательно',
    lbl_score:'Балл GAD-7',lbl_screen:'Скрининг (≥10)'
  },
  pcl5:{
    suffix_below:'Балл <33 не достигает порога для вероятного ПТСР.',
    suffix_above:'Балл ≥33 указывает на вероятное ПТСР — необходима клиническая оценка.',
    pos:'ВЕРОЯТНОЕ ПТСР',neg:'не достигнуто',
    lbl_score:'Балл PCL-5',lbl_screen:'Скрининг (≥33)',
    lbl_intr:'Вторжение',lbl_avoid:'Избегание',lbl_cog:'Когнитивно-эмоц.',lbl_arouse:'Возбуждение'
  },
  audit:{
    interp_low:'Низкий риск',interp_haz:'Опасное употребление',interp_harm:'Вредное употребление',interp_dep:'Вероятная зависимость',
    above_8:'Балл ≥8 указывает на опасное или вредное употребление алкоголя.',
    above_20:'Балл ≥20 указывает на вероятную алкогольную зависимость — рекомендуется клиническое обследование.',
    below_8:'Балл <8 указывает на потребление с низким риском.',
    pos:'ПОЛОЖИТЕЛЬНО',neg:'отрицательно',
    lbl_score:'Балл AUDIT',lbl_screen:'Скрининг (≥8)'
  },
  asrs:{
    above:'Балл ≥4 на Части A — положительный скрининг вероятного СДВГ у взрослых (чувствительность 68,7 %, специфичность 99,5 %).',
    below:'Балл <4 не достигает порога ASRS Части A.',
    pos:'ПОЛОЖИТЕЛЬНО',neg:'отрицательно',
    lbl_partA:'Часть A положит.',lbl_screen:'Скрининг (≥4)',lbl_total:'Общий балл'
  },
  hachinski:{
    cat_degen:'Первичная дегенеративная (тип Альцгеймера)',
    cat_mixed:'Смешанная / неопределённая',
    cat_vasc:'Многоинфарктная (сосудистая) деменция',
    interp_degen:'Балл ≤4 соответствует первичной дегенеративной деменции (напр., болезнь Альцгеймера). Цереброваскулярный вклад как доминирующая этиология маловероятен.',
    interp_mixed:'Балл 5–6 — неопределённый диапазон: возможно сосуществование сосудистой и дегенеративной патологии (смешанная деменция). Рекомендуется нейровизуализация и дополнительное обследование.',
    interp_vasc:'Балл ≥7 соответствует многоинфарктной/сосудистой деменции. Цереброваскулярная патология, вероятно, вносит значительный вклад; подтвердите нейровизуализацией (МРТ/КТ — инфаркты, лейкоареоз).',
    lbl_total:'Итог HIS',lbl_range:'Диапазон',lbl_class:'Классификация'
  },
  katz:{
    cat_full:'Полная функция',
    cat_mild:'Лёгкая–умеренная недостаточность',
    cat_mod:'Умеренная недостаточность',
    cat_sev:'Тяжёлая недостаточность',
    interp_6:'Балл 6/6 — полная независимость в базовых активностях повседневной жизни. Нарушение БАПЖ не обнаружено.',
    interp_45:'Балл указывает на лёгкую–умеренную функциональную недостаточность в БАПЖ. Определите конкретные дефициты для целевого вмешательства (напр., средства для купания, приспособления для одевания). Рассмотрите шкалу Лоутона (ИАПЖ) для выявления более ранних функциональных нарушений.',
    interp_3:'Балл указывает на умеренную функциональную недостаточность — требуется помощь в нескольких БАПЖ. Рекомендуется планирование ухода и поддержка ухаживающих.',
    interp_low:'Балл указывает на тяжёлую недостаточность БАПЖ. Пациент зависим от помощи в большинстве фундаментальных активностей самообслуживания. Указывает на существенную нагрузку на ухаживающих / может потребоваться институциональный уровень ухода.',
    lbl_total:'Итог Катц АДЛ',lbl_dep:'Зависимых активностей',lbl_class:'Классификация'
  },
  lawton:{
    cat_full:'Полная функция ИАПЖ',
    cat_mild:'Лёгкая недостаточность',
    cat_mod:'Умеренная недостаточность',
    cat_sev:'Тяжёлая недостаточность',
    interp_8:'Балл 8/8 — полная независимость в инструментальных активностях. Нарушение ИАПЖ не обнаружено.',
    interp_67:'Балл указывает на лёгкую недостаточность ИАПЖ. Определите конкретные дефициты — ранний спад ИАПЖ — чувствительный маркер УКР / ранней деменции. Может быть оправдано когнитивное обследование.',
    interp_mid:'Балл указывает на умеренную недостаточность ИАПЖ. Пациент не может полностью самостоятельно жить в обществе без поддержки. Вероятно требуется уход или услуги на дому.',
    interp_low:'Балл указывает на тяжёлую недостаточность ИАПЖ. Самостоятельная жизнь в обществе невозможна; рассмотрите более высокий уровень надзора или ухода.',
    lbl_total:'Итог Лоутон ИАПЖ',lbl_dep:'Зависимых ИАПЖ',lbl_class:'Классификация'
  }
};

// I18N: attach late constants now that they are defined
if(typeof I18N !== 'undefined' && I18N.ru){
  I18N.ru.questionnaires = QUESTIONNAIRES_RU;
  I18N.ru.results = RESULT_STRINGS_RU;
}

// PHQ-9
var PHQ9_Q=['Little interest or pleasure in doing things','Feeling down, depressed, or hopeless','Trouble falling or staying asleep, or sleeping too much','Feeling tired or having little energy','Poor appetite or overeating','Feeling bad about yourself or that you are a failure','Trouble concentrating on things','Moving or speaking so slowly, or being fidgety or restless','Thoughts that you would be better off dead or of hurting yourself'];
var PHQ_O=[{v:0,l:'Not at all (0)'},{v:1,l:'Several days (1)'},{v:2,l:'More than half (2)'},{v:3,l:'Nearly every day (3)'}];
function startPHQ9(isPractice){hideAll();$('phq9Screen').style.display='flex';$('phq9StimPhase').style.display='flex';$('phq9ResultsPhase').style.display='none';$('phq9-score').textContent='--';$('si-task').textContent='PHQ-9';$('exportBtn').disabled=true;localizedScale('phq9',PHQ9_Q,PHQ_O,'Over the past 2 weeks, how often have you been bothered by:');}
function phq9Finish(){
  var res=scaleScore('phq9',9);if(res.missing.length){alert('Please answer items: '+res.missing.join(', '));return;}
  var s=res.total;window._phq9_s=s;$('phq9-score').textContent=s+'/27';
  var ru=(I18N[currentLang] && I18N[currentLang].results && I18N[currentLang].results.phq9) || null;
  var interp;
  if(ru){
    interp=s<=4?ru.interp_minimal:s<=9?ru.interp_mild:s<=14?ru.interp_moderate:s<=19?ru.interp_modsev:ru.interp_severe;
  } else {
    interp=s<=4?'Minimal':s<=9?'Mild':s<=14?'Moderate':s<=19?'Moderately severe':'Severe';
  }
  var lbl_score=ru?ru.lbl_score:'PHQ-9 Score';
  var lbl_screen=ru?ru.lbl_screen:'Screen (>=10)';
  var pos=ru?ru.pos:'POSITIVE', neg=ru?ru.neg:'negative';
  $('phq9Metrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+s+'/27</div><div class="vm-lbl">'+lbl_score+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(s>=10?pos:neg)+'</div><div class="vm-lbl">'+lbl_screen+'</div></div>';
  if(ru){
    $('phq9Interpretation').textContent=interp+ru.suffix+(s>=10?ru.above_thresh:ru.below_thresh);
  } else {
    $('phq9Interpretation').textContent=interp+' depression. '+(s>=10?'Score >=10 is the threshold for probable major depression.':'Score <10 does not meet the threshold on this screen.');
  }
  var item9=parseInt((document.querySelector('input[name="sc_phq9_8"]:checked')||{value:0}).value);
  if(item9>0){
    if(ru) $('phq9Interpretation').textContent+=ru.item9_flag+item9+ru.item9_after;
    else $('phq9Interpretation').textContent+=' Item 9 scored '+item9+' -- clinical follow-up recommended.';
  }
  $('phq9StimPhase').style.display='none';$('phq9ResultsPhase').style.display='block';$('exportBtn').disabled=false;updateSidebar();
}
function phq9ExportCSV(){scaleExport('phq9',PHQ9_Q,window._phq9_s);}

// GAD-7
var GAD7_Q=['Feeling nervous, anxious, or on edge','Not being able to stop or control worrying','Worrying too much about different things','Trouble relaxing','Being so restless it is hard to sit still','Becoming easily annoyed or irritable','Feeling afraid as if something awful might happen'];
function startGAD7(isPractice){hideAll();$('gad7Screen').style.display='flex';$('gad7StimPhase').style.display='flex';$('gad7ResultsPhase').style.display='none';$('gad7-score').textContent='--';$('si-task').textContent='GAD-7';$('exportBtn').disabled=true;localizedScale('gad7',GAD7_Q,PHQ_O,'Over the past 2 weeks, how often have you been bothered by:');}
function gad7Finish(){
  var res=scaleScore('gad7',7);if(res.missing.length){alert('Please answer items: '+res.missing.join(', '));return;}
  var s=res.total;window._gad7_s=s;$('gad7-score').textContent=s+'/21';
  var ru=(I18N[currentLang] && I18N[currentLang].results && I18N[currentLang].results.gad7) || null;
  var interp;
  if(ru){
    interp=s<=4?ru.interp_minimal:s<=9?ru.interp_mild:s<=14?ru.interp_moderate:ru.interp_severe;
  } else {
    interp=s<=4?'Minimal':s<=9?'Mild':s<=14?'Moderate':'Severe';
  }
  var lbl_score=ru?ru.lbl_score:'GAD-7 Score';
  var lbl_screen=ru?ru.lbl_screen:'Screen (>=10)';
  var pos=ru?ru.pos:'POSITIVE', neg=ru?ru.neg:'negative';
  $('gad7Metrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+s+'/21</div><div class="vm-lbl">'+lbl_score+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(s>=10?pos:neg)+'</div><div class="vm-lbl">'+lbl_screen+'</div></div>';
  if(ru){
    $('gad7Interpretation').textContent=interp+ru.suffix+(s>=10?ru.above_thresh:ru.below_thresh);
  } else {
    $('gad7Interpretation').textContent=interp+' anxiety. '+(s>=10?'Score >=10 screens positive for GAD; also screens for panic disorder, social anxiety, and PTSD.':'Score <10 is below the GAD-7 threshold.');
  }
  $('gad7StimPhase').style.display='none';$('gad7ResultsPhase').style.display='block';$('exportBtn').disabled=false;updateSidebar();
}
function gad7ExportCSV(){scaleExport('gad7',GAD7_Q,window._gad7_s);}

// PCL-5
var PCL5_Q=['Repeated, disturbing, and unwanted memories of the stressful experience','Repeated disturbing dreams of the stressful experience','Suddenly feeling or acting as if the stressful experience were actually happening again','Feeling very upset when something reminded you of the stressful experience','Having strong physical reactions when something reminded you of the experience','Avoiding memories, thoughts, or feelings related to the stressful experience','Avoiding external reminders of the stressful experience','Trouble remembering important parts of the stressful experience','Having strong negative beliefs about yourself, other people, or the world','Blaming yourself or someone else for the stressful experience','Having strong negative feelings such as fear, horror, anger, guilt, or shame','Loss of interest in activities you used to enjoy','Feeling distant or cut off from other people','Trouble experiencing positive feelings','Irritable behavior or angry outbursts','Taking too many risks or doing things that could cause harm','Being super-alert or watchful or on guard','Feeling jumpy or easily startled','Having difficulty concentrating','Trouble falling or staying asleep'];
var PCL_O=[{v:0,l:'Not at all (0)'},{v:1,l:'A little bit (1)'},{v:2,l:'Moderately (2)'},{v:3,l:'Quite a bit (3)'},{v:4,l:'Extremely (4)'}];
function startPCL5(isPractice){hideAll();$('pcl5Screen').style.display='flex';$('pcl5StimPhase').style.display='flex';$('pcl5ResultsPhase').style.display='none';$('pcl5-score').textContent='--';$('si-task').textContent='PCL-5';$('exportBtn').disabled=true;localizedScale('pcl5',PCL5_Q,PCL_O,'In the past month, how much were you bothered by:');}
function pcl5Finish(){
  var res=scaleScore('pcl5',20);if(res.missing.length){alert('Please answer items: '+res.missing.join(', '));return;}
  var s=res.total;window._pcl5_s=s;$('pcl5-score').textContent=s+'/80';
  var clusters={B:[0,1,2,3,4],C:[5,6],D:[7,8,9,10,11,12,13],E:[14,15,16,17,18,19]};
  var minReq={B:1,C:1,D:2,E:2};var dsmOk=true;
  Object.keys(clusters).forEach(function(cl){var cnt=clusters[cl].filter(function(i){var sel=document.querySelector('input[name="sc_pcl5_'+i+'"]:checked');return sel&&parseInt(sel.value)>=2;}).length;if(cnt<minReq[cl])dsmOk=false;});
  var ru=(I18N[currentLang] && I18N[currentLang].results && I18N[currentLang].results.pcl5) || null;
  var lbl_score=ru?ru.lbl_score:'PCL-5 Total';
  var lbl_screen=ru?ru.lbl_screen:'Screen (>=33)';
  var pos=ru?ru.pos:'POSITIVE', neg=ru?ru.neg:'negative';
  var dsmLbl=ru?'Кластеры DSM-5':'DSM-5 Clusters';
  var dsmYes=ru?'ДА':'YES', dsmNo=ru?'НЕТ':'NO';
  $('pcl5Metrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+s+'/80</div><div class="vm-lbl">'+lbl_score+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(s>=33?pos:neg)+'</div><div class="vm-lbl">'+lbl_screen+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(dsmOk?dsmYes:dsmNo)+'</div><div class="vm-lbl">'+dsmLbl+'</div></div>';
  if(ru){
    $('pcl5Interpretation').textContent='Сумма: '+s+'/80. '+(s>=33?ru.suffix_above:ru.suffix_below)+' Критерии кластеров симптомов DSM-5 '+(dsmOk?'выполнены.':'не выполнены.');
  } else {
    $('pcl5Interpretation').textContent='Total: '+s+'/80. '+(s>=33?'Score >=33 is screen-positive for probable PTSD.':'Score <33 is below the threshold.')+' DSM-5 symptom cluster criteria '+(dsmOk?'met.':'not met.');
  }
  $('pcl5StimPhase').style.display='none';$('pcl5ResultsPhase').style.display='block';$('exportBtn').disabled=false;updateSidebar();
}
function pcl5ExportCSV(){scaleExport('pcl5',PCL5_Q,window._pcl5_s);}

// AUDIT
var AUDIT_Q=['How often do you have a drink containing alcohol?','How many units of alcohol do you drink on a typical day when you are drinking?','How often have you had 6 or more units (female) or 8 or more (male) on a single occasion in the last year?','How often during the last year have you found that you were not able to stop drinking once you had started?','How often during the last year have you failed to do what was normally expected from you because of your drinking?','How often during the last year have you needed an alcoholic drink in the morning to get yourself going after a heavy drinking session?','How often during the last year have you had a feeling of guilt or remorse after drinking?','How often during the last year have you been unable to remember what happened the night before because you had been drinking?','Have you or someone else been injured as a result of your drinking?','Has a relative, friend, doctor, or other health worker been concerned about your drinking or suggested you cut down?'];
var AUDIT_OPTS=[[{v:0,l:'Never'},{v:1,l:'Monthly or less'},{v:2,l:'2-4 times/month'},{v:3,l:'2-3 times/week'},{v:4,l:'4+ times/week'}],[{v:0,l:'1-2'},{v:1,l:'3-4'},{v:2,l:'5-6'},{v:3,l:'7-9'},{v:4,l:'10+'}],[{v:0,l:'Never'},{v:1,l:'Less than monthly'},{v:2,l:'Monthly'},{v:3,l:'Weekly'},{v:4,l:'Daily/almost daily'}],[{v:0,l:'Never'},{v:1,l:'Less than monthly'},{v:2,l:'Monthly'},{v:3,l:'Weekly'},{v:4,l:'Daily/almost daily'}],[{v:0,l:'Never'},{v:1,l:'Less than monthly'},{v:2,l:'Monthly'},{v:3,l:'Weekly'},{v:4,l:'Daily/almost daily'}],[{v:0,l:'Never'},{v:1,l:'Less than monthly'},{v:2,l:'Monthly'},{v:3,l:'Weekly'},{v:4,l:'Daily/almost daily'}],[{v:0,l:'Never'},{v:1,l:'Less than monthly'},{v:2,l:'Monthly'},{v:3,l:'Weekly'},{v:4,l:'Daily/almost daily'}],[{v:0,l:'Never'},{v:1,l:'Less than monthly'},{v:2,l:'Monthly'},{v:3,l:'Weekly'},{v:4,l:'Daily/almost daily'}],[{v:0,l:'No'},{v:2,l:'Yes, but not in last year'},{v:4,l:'Yes, during the last year'}],[{v:0,l:'No'},{v:2,l:'Yes, but not in last year'},{v:4,l:'Yes, during the last year'}]];
function startAUDIT(isPractice){hideAll();$('auditScreen').style.display='flex';$('auditStimPhase').style.display='flex';$('auditResultsPhase').style.display='none';$('audit-score').textContent='--';$('si-task').textContent='AUDIT';$('exportBtn').disabled=true;localizedScale('audit',AUDIT_Q,AUDIT_OPTS,'');}
function auditFinish(){
  var total=0;var missing=[];
  for(var i=0;i<10;i++){var sel=document.querySelector('input[name="sc_audit_'+i+'"]:checked');if(!sel)missing.push(i+1);else total+=parseInt(sel.value);}
  if(missing.length){alert('Please answer items: '+missing.join(', '));return;}
  window._audit_s=total;$('audit-score').textContent=total+'/40';
  var ru=(I18N[currentLang] && I18N[currentLang].results && I18N[currentLang].results.audit) || null;
  var interp;
  if(ru){
    interp=total<=7?ru.interp_low+' (зона I)':total<=15?ru.interp_haz+' (зона II)':total<=19?ru.interp_harm+' (зона III)':ru.interp_dep+' (зона IV)';
  } else {
    interp=total<=7?'Low risk (zone I)':total<=15?'Hazardous drinking (zone II)':total<=19?'Harmful use (zone III)':'Probable dependence (zone IV)';
  }
  var lbl_score=ru?ru.lbl_score:'AUDIT Score';
  var lbl_screen=ru?ru.lbl_screen:'Screen (>=8)';
  var pos=ru?ru.pos:'POSITIVE', neg=ru?ru.neg:'negative';
  $('auditMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+total+'/40</div><div class="vm-lbl">'+lbl_score+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(total>=8?pos:neg)+'</div><div class="vm-lbl">'+lbl_screen+'</div></div>';
  $('auditInterpretation').textContent=interp+'.';
  $('auditStimPhase').style.display='none';$('auditResultsPhase').style.display='block';$('exportBtn').disabled=false;updateSidebar();
}
function auditExportCSV(){scaleExport('audit',AUDIT_Q,window._audit_s);}

// ASRS
var ASRS_Q=['How often do you have trouble wrapping up the final details of a project once the challenging parts have been done?','How often do you have difficulty getting things in order when you have to do a task that requires organization?','How often do you have problems remembering appointments or obligations?','When you have a task that requires a lot of thought, how often do you avoid or delay getting started?','How often do you fidget or squirm with your hands or feet when you have to sit down for a long time?','How often do you feel overly active and compelled to do things, like you were driven by a motor?','How often do you make careless mistakes when you have to work on a boring or difficult project?','How often do you have difficulty keeping your attention when you are doing boring or repetitive work?','How often do you have difficulty concentrating on what people say to you, even when they are speaking to you directly?','How often do you misplace or have difficulty finding things at home or at work?','How often are you distracted by activity or noise around you?','How often do you leave your seat in meetings or other situations in which you are expected to remain seated?','How often do you feel restless or fidgety?','How often do you have difficulty unwinding and relaxing when you have time to yourself?','How often do you find yourself talking too much when you are in social situations?','When you are in a conversation, how often do you find yourself finishing the sentences of the people you are talking to, before they can finish them?','How often do you have difficulty waiting your turn in situations when turn taking is required?','How often do you interrupt others when they are busy?'];
var ASRS_O=[{v:0,l:'Never (0)'},{v:1,l:'Rarely (1)'},{v:2,l:'Sometimes (2)'},{v:3,l:'Often (3)'},{v:4,l:'Very often (4)'}];
var ASRS_SHADE=[{thresh:2},{thresh:3},{thresh:2},{thresh:3},{thresh:3},{thresh:3}]; // Part A shaded thresholds
function startASRS(isPractice){hideAll();$('asrsScreen').style.display='flex';$('asrsStimPhase').style.display='flex';$('asrsResultsPhase').style.display='none';$('asrs-score').textContent='--';$('si-task').textContent='ASRS';$('exportBtn').disabled=true;localizedScale('asrs',ASRS_Q,ASRS_O,'In the past 6 months, how often did you:');}
function asrsFinish(){
  var res=scaleScore('asrs',18);if(res.missing.length){alert('Please answer items: '+res.missing.join(', '));return;}
  var partA=0;
  ASRS_SHADE.forEach(function(sh,i){var sel=document.querySelector('input[name="sc_asrs_'+i+'"]:checked');if(sel&&parseInt(sel.value)>=sh.thresh)partA++;});
  window._asrs_s=res.total;
  var ru=(I18N[currentLang] && I18N[currentLang].results && I18N[currentLang].results.asrs) || null;
  var partALbl=ru?'Часть A':' Part A';
  $('asrs-score').textContent=partA+'/6'+partALbl;
  var lbl_partA=ru?ru.lbl_partA:'Part A Positive';
  var lbl_screen=ru?ru.lbl_screen:'Screen (>=4)';
  var lbl_total=ru?ru.lbl_total:'Total Score';
  var pos=ru?ru.pos:'POSITIVE', neg=ru?ru.neg:'negative';
  $('asrsMetrics').innerHTML='<div class="vrt-metric"><div class="vm-val">'+partA+'/6</div><div class="vm-lbl">'+lbl_partA+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(partA>=4?pos:neg)+'</div><div class="vm-lbl">'+lbl_screen+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+res.total+'/72</div><div class="vm-lbl">'+lbl_total+'</div></div>';
  if(ru){
    $('asrsInterpretation').textContent='Балл Части A: '+partA+'/6. '+(partA>=4?ru.above:ru.below);
  } else {
    $('asrsInterpretation').textContent='Part A score: '+partA+'/6. '+(partA>=4?'Score >=4 is screen-positive for probable adult ADHD (sensitivity 68.7%, specificity 99.5%).':'Score <4 does not meet the ASRS Part A threshold.');
  }
  $('asrsStimPhase').style.display='none';$('asrsResultsPhase').style.display='block';$('exportBtn').disabled=false;updateSidebar();
}
function asrsExportCSV(){scaleExport('asrs',ASRS_Q,window._asrs_s);}

// ══ HACHINSKI ISCHEMIC SCORE ════════════════════════════════════════
// Hachinski VC, Iliff LD, Zilhka E, et al. Cerebral blood flow in dementia.
// Arch Neurol 1975; 32:632–637.
// 13-item clinician-rated checklist. Each item present = its weight; absent = 0.
// Weights: items #1,3,10,12,13 = 2 pts; all others = 1 pt. Max total = 18.
// ≤4 → primary degenerative (Alzheimer-type); 5–6 → mixed; ≥7 → multi-infarct.
var HACH_Q=[
  'Abrupt onset of cognitive decline',
  'Stepwise deterioration (sudden worsening followed by plateau)',
  'Fluctuating course (good days and bad days)',
  'Nocturnal confusion',
  'Relative preservation of personality',
  'Depression',
  'Somatic complaints',
  'Emotional incontinence (sudden laughing or crying)',
  'History of hypertension',
  'History of strokes',
  'Evidence of associated atherosclerosis (e.g., peripheral or coronary)',
  'Focal neurological symptoms (transient or persisting)',
  'Focal neurological signs on examination'
];
// Per-item weights (2 pts for abrupt onset, fluctuating course, strokes, focal symptoms, focal signs)
var HACH_W=[2,1,2,1,1,1,1,1,1,2,1,2,2];
// Build per-item option arrays — each item has its own weight for "Present"
var HACH_O=HACH_Q.map(function(_,i){
  return [{v:0,l:'Absent (0)'},{v:HACH_W[i],l:'Present ('+HACH_W[i]+')'}];
});
function startHACHINSKI(isPractice){
  hideAll();
  $('hachinskiScreen').style.display='flex';
  $('hachinskiStimPhase').style.display='flex';
  $('hachinskiResultsPhase').style.display='none';
  $('hachinski-score').textContent='--';
  $('si-task').textContent='HACHINSKI';
  $('exportBtn').disabled=true;
  localizedScale('hachinski',HACH_Q,HACH_O,'Clinician rating: for each feature, mark Absent or Present based on history and examination.');
}
function hachinskiFinish(){
  var res=scaleScore('hachinski',HACH_Q.length);
  if(res.missing.length){alert('Please answer items: '+res.missing.join(', '));return;}
  var s=res.total;
  window._hachinski_s=s;
  $('hachinski-score').textContent=s+'/18';
  var ru=(I18N[currentLang] && I18N[currentLang].results && I18N[currentLang].results.hachinski) || null;
  var interp, category;
  if(ru){
    if(s<=4){ category=ru.cat_degen; interp=ru.interp_degen; }
    else if(s<=6){ category=ru.cat_mixed; interp=ru.interp_mixed; }
    else{ category=ru.cat_vasc; interp=ru.interp_vasc; }
  } else {
    if(s<=4){ category='Primary degenerative (Alzheimer-type)'; interp='Score ≤4 is consistent with primary degenerative dementia (e.g., Alzheimer disease). Cerebrovascular contribution unlikely to be the dominant aetiology.'; }
    else if(s<=6){ category='Mixed / indeterminate'; interp='Score 5–6 falls in the indeterminate range — features of both vascular and degenerative pathology may coexist (mixed dementia). Neuroimaging and further work-up are warranted to clarify.'; }
    else{ category='Multi-infarct (vascular) dementia'; interp='Score ≥7 is consistent with multi-infarct / vascular dementia. Cerebrovascular disease is likely a significant contributor; confirm with neuroimaging (MRI/CT for infarcts, white-matter disease).'; }
  }
  var lbl_total=ru?ru.lbl_total:'HIS Total';
  var lbl_range=ru?ru.lbl_range:'Range';
  var lbl_class=ru?ru.lbl_class:'Classification';
  $('hachinskiMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+s+'/18</div><div class="vm-lbl">'+lbl_total+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(s>=7?'≥7':s<=4?'≤4':'5-6')+'</div><div class="vm-lbl">'+lbl_range+'</div></div>'+
    '<div class="vrt-metric" style="min-width:180px"><div class="vm-val" style="font-size:0.92rem;line-height:1.25">'+category+'</div><div class="vm-lbl">'+lbl_class+'</div></div>';
  $('hachinskiInterpretation').textContent=interp;
  $('hachinskiStimPhase').style.display='none';
  $('hachinskiResultsPhase').style.display='block';
  $('exportBtn').disabled=false;
  updateSidebar();
}
function hachinskiExportCSV(){scaleExport('hachinski',HACH_Q,window._hachinski_s);}

// ══ KATZ INDEX OF INDEPENDENCE IN ADL ════════════════════════════════
// Katz S, Ford AB, Moskowitz RW, Jackson BA, Jaffe MW.
// Studies of illness in the aged. The index of ADL: a standardized measure of
// biological and psychosocial function. JAMA 1963; 185:914–919.
// 6 items, each Independent (1) or Dependent (0). Total 0–6.
// 6 = full function, 4 = moderate impairment, ≤2 = severe impairment.
var KATZ_Q=[
  'BATHING — bathes self completely or needs help only with one body part (e.g., back, genitals, disabled limb)',
  'DRESSING — selects clothes and gets clothing from drawers/closets and puts on clothes and outer garments (may need help tying shoes)',
  'TOILETING — goes to toilet, gets on and off, arranges clothes, cleans self without help',
  'TRANSFERRING — moves in and out of bed or chair without assistance (mechanical aids acceptable)',
  'CONTINENCE — has complete self-control over urination and defecation',
  'FEEDING — gets food from plate into mouth without help (preparation of food may be done by another person)'
];
var KATZ_O=[{v:0,l:'Dependent (0) — requires help'},{v:1,l:'Independent (1) — no supervision/direction'}];
function startKATZ(isPractice){
  hideAll();
  $('katzScreen').style.display='flex';
  $('katzStimPhase').style.display='flex';
  $('katzResultsPhase').style.display='none';
  $('katz-score').textContent='--';
  $('si-task').textContent='KATZ';
  $('exportBtn').disabled=true;
  localizedScale('katz',KATZ_Q,KATZ_O,'For each activity, mark whether the patient is INDEPENDENT (does without help) or DEPENDENT (requires help, supervision, or does not perform).');
}
function katzFinish(){
  var res=scaleScore('katz',KATZ_Q.length);
  if(res.missing.length){alert('Please answer items: '+res.missing.join(', '));return;}
  var s=res.total;
  window._katz_s=s;
  $('katz-score').textContent=s+'/6';
  var ru=(I18N[currentLang] && I18N[currentLang].results && I18N[currentLang].results.katz) || null;
  var category, interp;
  if(ru){
    if(s===6){ category=ru.cat_full; interp=ru.interp_6; }
    else if(s>=4){ category=ru.cat_mild; interp='Балл '+s+'/6: '+ru.interp_45; }
    else if(s>=3){ category=ru.cat_mod; interp='Балл '+s+'/6: '+ru.interp_3; }
    else{ category=ru.cat_sev; interp='Балл '+s+'/6: '+ru.interp_low; }
  } else {
    if(s===6){ category='Full function'; interp='Score 6/6 = fully independent in basic activities of daily living. No basic-ADL impairment detected.'; }
    else if(s>=4){ category='Mild–moderate impairment'; interp='Score '+s+'/6 indicates mild-to-moderate functional impairment in basic ADLs. Identify specific deficits for targeted intervention (e.g., bathing aids, dressing devices). Consider Lawton IADL for earlier/instrumental functional decline.'; }
    else if(s>=3){ category='Moderate impairment'; interp='Score '+s+'/6 indicates moderate functional impairment — patient requires assistance with multiple basic ADLs. Care planning and caregiver support recommended.'; }
    else{ category='Severe impairment'; interp='Score '+s+'/6 indicates severe basic-ADL impairment. Patient is dependent across most fundamental self-care activities. Indicates substantial caregiver burden / institutional-level care may be needed.'; }
  }
  var lbl_total=ru?ru.lbl_total:'Katz ADL Total';
  var lbl_dep=ru?ru.lbl_dep:'Activities with Dependence';
  var lbl_class=ru?ru.lbl_class:'Classification';
  $('katzMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+s+'/6</div><div class="vm-lbl">'+lbl_total+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(6-s)+'</div><div class="vm-lbl">'+lbl_dep+'</div></div>'+
    '<div class="vrt-metric" style="min-width:180px"><div class="vm-val" style="font-size:0.92rem;line-height:1.25">'+category+'</div><div class="vm-lbl">'+lbl_class+'</div></div>';
  $('katzInterpretation').textContent=interp;
  $('katzStimPhase').style.display='none';
  $('katzResultsPhase').style.display='block';
  $('exportBtn').disabled=false;
  updateSidebar();
}
function katzExportCSV(){scaleExport('katz',KATZ_Q,window._katz_s);}

// ══ LAWTON INSTRUMENTAL ADL SCALE ════════════════════════════════════
// Lawton MP, Brody EM. Assessment of older people: self-maintaining and
// instrumental activities of daily living. Gerontologist 1969; 9:179–186.
// 8 items, unisex 0–8 scoring (modern clinical standard).
// Original 1969: women all 8 items, men 5 items (no laundry/cooking/housekeeping).
// Modern unisex version: all 8 items scored 0 or 1 for all patients.
// Higher = more independent. Decline in IADL typically precedes basic ADL decline.
var LAWTON_Q=[
  'TELEPHONE — uses telephone independently (looks up numbers, dials, answers)',
  'SHOPPING — shops independently for all needed items',
  'FOOD PREPARATION — plans, prepares, and serves adequate meals independently',
  'HOUSEKEEPING — maintains house alone or with occasional assistance (e.g., heavy work)',
  'LAUNDRY — does personal laundry completely',
  'TRANSPORTATION — travels independently on public transport, drives own car, or arranges own travel',
  'MEDICATION — takes responsibility for medications in correct dosages at correct times',
  'FINANCES — manages financial matters independently (budget, pays bills, banking)'
];
var LAWTON_O=[{v:0,l:'Dependent (0) — unable / needs help'},{v:1,l:'Independent (1)'}];
function startLAWTON(isPractice){
  hideAll();
  $('lawtonScreen').style.display='flex';
  $('lawtonStimPhase').style.display='flex';
  $('lawtonResultsPhase').style.display='none';
  $('lawton-score').textContent='--';
  $('si-task').textContent='LAWTON';
  $('exportBtn').disabled=true;
  localizedScale('lawton',LAWTON_Q,LAWTON_O,'For each instrumental activity, mark whether the patient is INDEPENDENT or DEPENDENT (cannot do, or requires help). Unisex 0–8 scoring.');
}
function lawtonFinish(){
  var res=scaleScore('lawton',LAWTON_Q.length);
  if(res.missing.length){alert('Please answer items: '+res.missing.join(', '));return;}
  var s=res.total;
  window._lawton_s=s;
  $('lawton-score').textContent=s+'/8';
  var ru=(I18N[currentLang] && I18N[currentLang].results && I18N[currentLang].results.lawton) || null;
  var category, interp;
  if(ru){
    if(s===8){ category=ru.cat_full; interp=ru.interp_8; }
    else if(s>=6){ category=ru.cat_mild; interp='Балл '+s+'/8: '+ru.interp_67; }
    else if(s>=3){ category=ru.cat_mod; interp='Балл '+s+'/8: '+ru.interp_mid; }
    else{ category=ru.cat_sev; interp='Балл '+s+'/8: '+ru.interp_low; }
  } else {
    if(s===8){ category='Full IADL function'; interp='Score 8/8 = fully independent in instrumental activities. No IADL impairment detected.'; }
    else if(s>=6){ category='Mild impairment'; interp='Score '+s+'/8 indicates mild IADL impairment. Identify specific deficits — early IADL decline is a sensitive marker for MCI / early dementia. Cognitive follow-up may be warranted.'; }
    else if(s>=3){ category='Moderate impairment'; interp='Score '+s+'/8 indicates moderate IADL impairment. Patient cannot live fully independently in the community without support. Caregiver or in-home services likely needed.'; }
    else{ category='Severe impairment'; interp='Score '+s+'/8 indicates severe IADL impairment. Independent community living not feasible; consider higher level of supervision or care.'; }
  }
  var lbl_total=ru?ru.lbl_total:'Lawton IADL Total';
  var lbl_dep=ru?ru.lbl_dep:'IADLs with Dependence';
  var lbl_class=ru?ru.lbl_class:'Classification';
  $('lawtonMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+s+'/8</div><div class="vm-lbl">'+lbl_total+'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+(8-s)+'</div><div class="vm-lbl">'+lbl_dep+'</div></div>'+
    '<div class="vrt-metric" style="min-width:180px"><div class="vm-val" style="font-size:0.92rem;line-height:1.25">'+category+'</div><div class="vm-lbl">'+lbl_class+'</div></div>';
  $('lawtonInterpretation').textContent=interp;
  $('lawtonStimPhase').style.display='none';
  $('lawtonResultsPhase').style.display='block';
  $('exportBtn').disabled=false;
  updateSidebar();
}
function lawtonExportCSV(){scaleExport('lawton',LAWTON_Q,window._lawton_s);}


// ══ N1-P2 ═══════════════════════════════════════════════
var _N1P2=null;
function startN1P2(isPractice){
  var N=taskTrials('LAWTON',8,120,isPractice),targetProb=0.2;
  _N1P2={active:true,isPractice:isPractice,trial:0,maxTrials:N,hits:0,misses:0,fas:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_N1P2._timers.push(t);return t;}
  _N1P2.T=T;_N1P2.clear=function(){_N1P2._timers.forEach(clearTimeout);_N1P2._timers=[];};
  hideAll();$('n1p2Screen').style.display='flex';
  $('n1p2PracticeBanner').style.display=isPractice?'block':'none';
  $('n1p2ProgressBar').style.width='0%';$('n1p2StimPhase').style.display='flex';
  $('n1p2ResultsPhase').style.display='none';$('n1p2Feedback').textContent='';
  $('n1p2Instruct').textContent='Press SPACE when you hear a higher-pitched tone';
  $('si-task').textContent='N1-P2'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  var ctx=new (window.AudioContext||window.webkitAudioContext)();
  function playTone(freq,dur){
    var osc=ctx.createOscillator();var gain=ctx.createGain();
    osc.connect(gain);gain.connect(ctx.destination);
    osc.type='sine';osc.frequency.value=freq;
    gain.gain.setValueAtTime(0,ctx.currentTime);gain.gain.linearRampToValueAtTime(0.3,ctx.currentTime+0.01);
    gain.gain.linearRampToValueAtTime(0,ctx.currentTime+dur);
    osc.start(ctx.currentTime);osc.stop(ctx.currentTime+dur+0.05);
  }
  function end(){
    _N1P2.clear();_N1P2.active=false;
    $('n1p2StimPhase').style.display='none';$('n1p2ProgressBar').style.width='100%';
    if(isPractice){$('pcStats').innerHTML='HITS <span>'+_N1P2.hits+'</span>';hideAll();$('practiceComplete').style.display='flex';return;}
    window._n1p2_log=_N1P2.log;$('exportBtn').disabled=false;
    var dprime=(_N1P2.hits/Math.max(1,_N1P2.log.filter(function(r){return r.isTarget;}).length)-_N1P2.fas/Math.max(1,_N1P2.log.filter(function(r){return !r.isTarget;}).length)).toFixed(2);
    $('n1p2Metrics').innerHTML=
      '<div class="vrt-metric"><div class="vm-val">'+_N1P2.hits+'</div><div class="vm-lbl">Hits</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+_N1P2.misses+'</div><div class="vm-lbl">Misses</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+_N1P2.fas+'</div><div class="vm-lbl">False Alarms</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+dprime+'</div><div class="vm-lbl">d\'</div></div>';
    $('n1p2ResultsPhase').style.display='block';updateSidebar();
  }
  function next(){
    if(!_N1P2.active)return;if(_N1P2.trial>=N){end();return;}
    _N1P2.trial++;
    $('n1p2ProgressBar').style.width=(_N1P2.trial/N*100).toFixed(1)+'%';
    $('n1p2-trial').textContent='Trial '+_N1P2.trial+'/'+N;
    $('n1p2-hits').textContent='Hits: '+_N1P2.hits;
    $('n1p2Feedback').textContent='';$('n1p2Feedback').className='feedback';
    var isTarget=Math.random()<targetProb;
    var freq=isTarget?1000:500;
    var tone=$('n1p2Tone');
    tone.style.background=isTarget?'rgba(212,180,86,0.25)':'rgba(91,159,218,0.15)';
    tone.textContent=isTarget?'♪':'♩';
    playTone(freq,0.05);
    triggerFlash();
    var onset=performance.now();var responded=false;
    var kh=function(e){
      if(!_N1P2.active)return;if(e.code!=='Space'&&e.key!==' ')return;
      e.preventDefault();if(responded)return;responded=true;
      var rt=+(performance.now()-onset).toFixed(1);
      if(isTarget){_N1P2.hits++;$('n1p2Feedback').textContent=rt+'ms ✓';$('n1p2Feedback').className='feedback ok';}
      else{_N1P2.fas++;$('n1p2Feedback').textContent='false alarm';$('n1p2Feedback').className='feedback err';}
      _N1P2.log.push({trial:_N1P2.trial,isTarget:isTarget,responded:true,rt:rt});
      document.removeEventListener('keydown',kh);
    };
    document.addEventListener('keydown',kh);
    // Brief stimulus flash, but keep the response window open ~1 s from onset
    // (was removing the listener ~260 ms after onset → presses after the tone
    // blanked were dropped).
    T(function(){ tone.style.background='#060d14';tone.textContent=''; },60);
    T(function(){
      document.removeEventListener('keydown',kh);
      if(!responded){
        if(isTarget)_N1P2.misses++;
        _N1P2.log.push({trial:_N1P2.trial,isTarget:isTarget,responded:false,rt:null});
      }
      T(next,400+Math.random()*400);
    },1000);
  }
  T(next,800);
}
function n1p2ExportCSV(){
  var log=window._n1p2_log;if(!log)return;
  var blob=new Blob(['trial,is_target,responded,rt_ms\n'+log.map(function(r){return[r.trial,r.isTarget?1:0,r.responded?1:0,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='n1p2_'+Date.now()+'.csv';a.click();
}
// ══ RON ══════════════════════════════════════════════════
var _RON=null;
function startRON(isPractice){
  var N=taskTrials('RON',5,160,isPractice),targetProb=0.15,distProb=0.15;
  _RON={active:true,isPractice:isPractice,trial:0,maxTrials:N,hits:0,misses:0,fas:0,distractors:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_RON._timers.push(t);return t;}
  _RON.T=T;_RON.clear=function(){_RON._timers.forEach(clearTimeout);_RON._timers=[];};
  hideAll();$('ronScreen').style.display='flex';
  $('ronPracticeBanner').style.display=isPractice?'block':'none';
  $('ronProgressBar').style.width='0%';$('ronStimPhase').style.display='flex';
  $('ronResultsPhase').style.display='none';$('ronFeedback').textContent='';
  $('ronInstruct').textContent='Count higher-pitched tones. Novel sounds will occasionally interrupt — refocus quickly.';
  $('si-task').textContent='RON'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  var ctx=new (window.AudioContext||window.webkitAudioContext)();
  function playTone(freq,dur,type){
    var osc=ctx.createOscillator();var gain=ctx.createGain();
    osc.connect(gain);gain.connect(ctx.destination);
    osc.type=type||'sine';osc.frequency.value=freq;
    gain.gain.setValueAtTime(0,ctx.currentTime);gain.gain.linearRampToValueAtTime(0.25,ctx.currentTime+0.01);
    gain.gain.linearRampToValueAtTime(0,ctx.currentTime+dur);
    osc.start(ctx.currentTime);osc.stop(ctx.currentTime+dur+0.05);
  }
  function playChord(){
    [261,329,392].forEach(function(f){playTone(f,0.15,'sawtooth');});
  }
  function end(){
    _RON.clear();_RON.active=false;
    $('ronStimPhase').style.display='none';$('ronProgressBar').style.width='100%';
    if(isPractice){$('pcStats').innerHTML='HITS <span>'+_RON.hits+'</span> DIST <span>'+_RON.distractors+'</span>';hideAll();$('practiceComplete').style.display='flex';return;}
    window._ron_log=_RON.log;$('exportBtn').disabled=false;
    var nT=_RON.log.filter(function(r){return r.type==='target';}).length;
    var nS=_RON.log.filter(function(r){return r.type==='standard';}).length;
    var hr=nT?(_RON.hits/nT).toFixed(2):'--';var far=nS?(_RON.fas/nS).toFixed(2):'--';
    $('ronMetrics').innerHTML=
      '<div class="vrt-metric"><div class="vm-val">'+_RON.hits+'/'+nT+'</div><div class="vm-lbl">Hits</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+_RON.distractors+'</div><div class="vm-lbl">Distractors</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+_RON.fas+'</div><div class="vm-lbl">False Alarms</div></div>';
    $('ronResultsPhase').style.display='block';updateSidebar();
  }
  function next(){
    if(!_RON.active)return;if(_RON.trial>=N){end();return;}
    _RON.trial++;
    $('ronProgressBar').style.width=(_RON.trial/N*100).toFixed(1)+'%';
    $('ron-trial').textContent='Trial '+_RON.trial+'/'+N;
    $('ron-hits').textContent='Hits: '+_RON.hits;
    $('ronFeedback').textContent='';$('ronFeedback').className='feedback';
    var r=Math.random();var type=r<targetProb?'target':r<targetProb+distProb?'distractor':'standard';
    var tone=$('ronTone');
    if(type==='target'){tone.style.background='rgba(212,180,86,0.25)';tone.textContent='♪';playTone(1000,0.05);}
    else if(type==='distractor'){tone.style.background='rgba(224,92,92,0.2)';tone.textContent='★';playChord();}
    else{tone.style.background='rgba(91,159,218,0.1)';tone.textContent='♩';playTone(500,0.05);}
    if(type==='distractor')_RON.distractors++;
    triggerFlash();
    var onset=performance.now();var responded=false;
    var kh=function(e){
      if(!_RON.active)return;if(e.code!=='Space'&&e.key!==' ')return;
      e.preventDefault();if(responded)return;responded=true;
      var rt=+(performance.now()-onset).toFixed(1);
      if(type==='target'){_RON.hits++;$('ronFeedback').textContent=rt+'ms ✓';$('ronFeedback').className='feedback ok';}
      else{_RON.fas++;$('ronFeedback').textContent='false alarm';$('ronFeedback').className='feedback err';}
      _RON.log.push({trial:_RON.trial,type:type,responded:true,rt:rt});
      document.removeEventListener('keydown',kh);
    };
    document.addEventListener('keydown',kh);
    // Brief flash; keep response window open ~1 s from onset.
    T(function(){ tone.style.background='#060d14';tone.textContent=''; },80);
    T(function(){
      document.removeEventListener('keydown',kh);
      if(!responded){if(type==='target')_RON.misses++;_RON.log.push({trial:_RON.trial,type:type,responded:false,rt:null});}
      T(next,350+Math.random()*350);
    },1000);
  }
  T(next,800);
}
function ronExportCSV(){
  var log=window._ron_log;if(!log)return;
  var blob=new Blob(['trial,type,responded,rt_ms\n'+log.map(function(r){return[r.trial,r.type,r.responded?1:0,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='ron_'+Date.now()+'.csv';a.click();
}
// ══ LAN ══════════════════════════════════════════════════
var _LAN=null;
var LAN_SENTENCES=[
  {s:'The girl walks to school every day.',v:false},
  {s:'The boys run quickly across the field.',v:false},
  {s:'The girl walk to school every day.',v:true},
  {s:'The boy run quickly across the field.',v:true},
  {s:'The doctor treats many patients each year.',v:false},
  {s:'The doctors treats many patients each year.',v:true},
  {s:'She reads a novel before bedtime.',v:false},
  {s:'She read a novel before bedtime.',v:true},
  {s:'The children play in the garden.',v:false},
  {s:'The child play in the garden.',v:true},
  {s:'He writes letters to his grandmother.',v:false},
  {s:'He write letters to his grandmother.',v:true},
  {s:'The scientists study climate change.',v:false},
  {s:'The scientist study climate change.',v:true},
  {s:'They arrive at the station on time.',v:false},
  {s:'They arrives at the station on time.',v:true},
  {s:'The teacher explains the lesson clearly.',v:false},
  {s:'The teachers explain the lesson clearly.',v:false},
  {s:'The teacher explain the lesson clearly.',v:true},
  {s:'My friend visits me on weekends.',v:false},
  {s:'My friends visits me on weekends.',v:true},
  {s:'The cat sits on the warm windowsill.',v:false},
  {s:'The cats sits on the warm windowsill.',v:true},
  {s:'The musicians perform at the concert hall.',v:false},
  {s:'The musician perform at the concert hall.',v:true},
  {s:'She speaks three languages fluently.',v:false},
  {s:'She speak three languages fluently.',v:true},
  {s:'The engineers build the bridge carefully.',v:false},
  {s:'The engineer build the bridge carefully.',v:true},
  {s:'He reads the newspaper every morning.',v:false},
  {s:'He read the newspaper every morning.',v:true},
  {s:'The students study for their exams.',v:false},
  {s:'The student study for their exams.',v:true},
  {s:'The river flows through the valley.',v:false},
  {s:'The rivers flows through the valley.',v:true},
  {s:'She paints beautiful landscapes.',v:false},
  {s:'She paint beautiful landscapes.',v:true},
  {s:'The managers review the quarterly reports.',v:false},
  {s:'The manager review the quarterly reports.',v:true},
  {s:'The dog barks at passing strangers.',v:false},
  {s:'The dogs bark at passing strangers.',v:false},
  {s:'The dog bark at passing strangers.',v:true},
  {s:'The child plays in the park after lunch.',v:false},
  {s:'The children play in the park after lunch.',v:false},
  {s:'The children plays in the park after lunch.',v:true},
  {s:'The engineer builds the bridge carefully.',v:false},
  {s:'The engineers build the bridge carefully.',v:false},
  {s:'The engineers builds the bridge carefully.',v:true},
  {s:'The student writes the essay overnight.',v:false},
  {s:'The students write the essay overnight.',v:false},
  {s:'The student write the essay overnight.',v:true},
  {s:'The chef prepares the meal with care.',v:false},
  {s:'The chefs prepare the meal with care.',v:false},
  {s:'The chef prepare the meal with care.',v:true},
  {s:'The artist paints the portrait slowly.',v:false},
  {s:'The artists paint the portrait slowly.',v:false},
  {s:'The artists paints the portrait slowly.',v:true},
  {s:'The pilot lands the plane smoothly.',v:false},
  {s:'The pilots land the plane smoothly.',v:false},
  {s:'The pilot land the plane smoothly.',v:true},
  {s:'The farmer feeds the animals each morning.',v:false},
  {s:'The farmers feed the animals each morning.',v:false},
  {s:'The farmers feeds the animals each morning.',v:true},
  {s:'The nurse checks the patient regularly.',v:false},
  {s:'The nurses check the patient regularly.',v:false},
  {s:'The nurse check the patient regularly.',v:true},
  {s:'The author signs the book for readers.',v:false},
  {s:'The authors sign the book for readers.',v:false},
  {s:'The authors signs the book for readers.',v:true},
];
function startLAN(isPractice){
  var items=LAN_SENTENCES.slice().sort(function(){return Math.random()-0.5;});
  if(isPractice)items=items.slice(0,taskTrials('LAN',5,items.length,true));
  _LAN={active:true,isPractice:isPractice,items:items,idx:0,correct:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_LAN._timers.push(t);return t;}
  _LAN.T=T;_LAN.clear=function(){_LAN._timers.forEach(clearTimeout);_LAN._timers=[];};
  hideAll();$('lanScreen').style.display='flex';
  $('lanPracticeBanner').style.display=isPractice?'block':'none';
  $('lanProgressBar').style.width='0%';$('lanStimPhase').style.display='flex';
  $('lanResultsPhase').style.display='none';$('lanFeedback').textContent='';
  $('si-task').textContent='LAN'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  lanNext();
}
function lanNext(){
  if(!_LAN.active)return;if(_LAN.idx>=_LAN.items.length){lanEnd();return;}
  var item=_LAN.items[_LAN.idx];
  $('lan-trial').textContent=(_LAN.idx+1)+'/'+_LAN.items.length;
  $('lanProgressBar').style.width=(_LAN.idx/_LAN.items.length*100).toFixed(1)+'%';
  $('lan-acc').textContent='Acc: '+(_LAN.idx?(_LAN.correct/_LAN.idx*100).toFixed(0)+'%':'--');
  $('lanSentence').textContent=item.s;
  $('lanFeedback').textContent='';$('lanFeedback').className='feedback';
  triggerFlash();
  var onset=performance.now();
  var kh=function(e){
    if(!_LAN.active)return;
    var resp=e.key==='y'||e.key==='Y'?false:e.key==='n'||e.key==='N'?true:null;
    if(resp===null)return;e.preventDefault();
    var rt=+(performance.now()-onset).toFixed(1);
    var ok=resp===item.v;if(ok)_LAN.correct++;
    _LAN.log.push({trial:_LAN.idx+1,sentence:item.s,violation:item.v,response:resp,correct:ok,rt:rt});
    var fb=$('lanFeedback');fb.textContent=ok?rt+'ms ✓':rt+'ms ✗ — '+(item.v?'has error':'correct sentence');fb.className='feedback '+(ok?'ok':'err');
    document.removeEventListener('keydown',kh);_LAN.idx++;
    _LAN.T(lanNext,600);
  };
  document.addEventListener('keydown',kh);
}
function lanEnd(){
  _LAN.clear();_LAN.active=false;
  $('lanStimPhase').style.display='none';$('lanProgressBar').style.width='100%';
  if(_LAN.isPractice){$('pcStats').innerHTML='ACC <span>'+(_LAN.correct/_LAN.items.length*100).toFixed(0)+'%</span>';hideAll();$('practiceComplete').style.display='flex';return;}
  window._lan_log=_LAN.log;$('exportBtn').disabled=false;
  var nViol=_LAN.log.filter(function(r){return r.violation;});var nCorr=_LAN.log.filter(function(r){return !r.violation;});
  var violAcc=nViol.length?(nViol.filter(function(r){return r.correct;}).length/nViol.length*100).toFixed(0)+'%':'--';
  var corrAcc=nCorr.length?(nCorr.filter(function(r){return r.correct;}).length/nCorr.length*100).toFixed(0)+'%':'--';
  var rtV=nViol.filter(function(r){return r.rt;});var avgRT=rtV.length?(rtV.reduce(function(a,b){return a+b.rt;},0)/rtV.length).toFixed(0):'--';
  $('lanMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+(_LAN.correct/_LAN.items.length*100).toFixed(0)+'%</div><div class="vm-lbl">Overall Acc.</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+violAcc+'</div><div class="vm-lbl">Violation Detect.</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+avgRT+'ms</div><div class="vm-lbl">Mean RT (violations)</div></div>';
  $('lanResultsPhase').style.display='block';updateSidebar();
}
function lanExportCSV(){
  var log=window._lan_log;if(!log)return;
  var blob=new Blob(['trial,violation,response,correct,rt_ms\n'+log.map(function(r){return[r.trial,r.violation?1:0,r.response?1:0,r.correct?1:0,r.rt].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='lan_'+Date.now()+'.csv';a.click();
}
// ══ CPS ══════════════════════════════════════════════════
var _CPS=null;
var CPS_ITEMS=[
  {s:'When the sun sets / the sky turns orange.',natural:true},
  {s:'When the sun sets the sky / turns orange.',natural:false},
  {s:'After the meeting / we went for coffee.',natural:true},
  {s:'After the meeting we went / for coffee.',natural:false},
  {s:'The children played outside / until dark.',natural:true},
  {s:'The children played / outside until dark.',natural:false},
  {s:'Because it was raining / we stayed inside.',natural:true},
  {s:'Because it was / raining we stayed inside.',natural:false},
  {s:'She opened the door / and stepped outside.',natural:true},
  {s:'She opened / the door and stepped outside.',natural:false},
  {s:'Before leaving the house / he checked his keys.',natural:true},
  {s:'Before leaving / the house he checked his keys.',natural:false},
  {s:'The train arrived early / and we boarded quickly.',natural:true},
  {s:'The train arrived / early and we boarded quickly.',natural:false},
  {s:'Although it was cold / the children played happily.',natural:true},
  {s:'Although it was cold the children / played happily.',natural:false},
  {s:'Once the exam was over / we celebrated together.',natural:true},
  {s:'Once the exam was over we / celebrated together.',natural:false},
  {s:'The wind blew strongly / bending the tall trees.',natural:true},
  {s:'The wind / blew strongly bending the tall trees.',natural:false},
  {s:'She sang beautifully / moving everyone in the room.',natural:true},
  {s:'She sang / beautifully moving everyone in the room.',natural:false},
  {s:'As night fell / the stars became visible.',natural:true},
  {s:'As night fell the stars / became visible.',natural:false},
  {s:'The professor finished the lecture / and left the room.',natural:true},
  {s:'The professor finished / the lecture and left the room.',natural:false},
  {s:'When the music started / everyone began to dance.',natural:true},
  {s:'When the music started everyone / began to dance.',natural:false},
  {s:'The river flowed gently / through the peaceful valley.',natural:true},
  {s:'The river flowed / gently through the peaceful valley.',natural:false},
  {s:'Because the road was icy / the bus arrived late.',natural:true},
  {s:'Because the road was icy the bus / arrived late.',natural:false},
  {s:'After dinner was over / they washed the dishes.',natural:true},
  {s:'After dinner was over they / washed the dishes.',natural:false},
  {s:'While the kettle boiled / she set out the cups.',natural:true},
  {s:'While the kettle boiled she set / out the cups.',natural:false},
  {s:'Once the storm had passed / the birds began singing.',natural:true},
  {s:'Once the storm had passed the birds / began singing.',natural:false},
  {s:'Before the guests arrived / he tidied the room.',natural:true},
  {s:'Before the guests arrived he / tidied the room.',natural:false},
  {s:'As the sun rose slowly / the city came alive.',natural:true},
  {s:'As the sun rose slowly the city / came alive.',natural:false},
  {s:'Although the test was hard / most students passed.',natural:true},
  {s:'Although the test was hard most / students passed.',natural:false},
  {s:'Whenever it snows heavily / the schools close early.',natural:true},
  {s:'Whenever it snows heavily the schools / close early.',natural:false},
  {s:'Since the shop was closed / we drove back home.',natural:true},
  {s:'Since the shop was closed we drove / back home.',natural:false},
];
function startCPS(isPractice){
  var items=CPS_ITEMS.slice().sort(function(){return Math.random()-0.5;});
  if(isPractice)items=items.slice(0,taskTrials('CPS',5,items.length,true));
  _CPS={active:true,isPractice:isPractice,items:items,idx:0,correct:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_CPS._timers.push(t);return t;}
  _CPS.T=T;_CPS.clear=function(){_CPS._timers.forEach(clearTimeout);_CPS._timers=[];};
  hideAll();$('cpsScreen').style.display='flex';
  $('cpsPracticeBanner').style.display=isPractice?'block':'none';
  $('cpsProgressBar').style.width='0%';$('cpsStimPhase').style.display='flex';
  $('cpsResultsPhase').style.display='none';$('cpsFeedback').textContent='';
  $('si-task').textContent='CPS'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  cpsNext();
}
function cpsNext(){
  if(!_CPS.active)return;if(_CPS.idx>=_CPS.items.length){cpsEnd();return;}
  var item=_CPS.items[_CPS.idx];
  $('cps-trial').textContent=(_CPS.idx+1)+'/'+_CPS.items.length;
  $('cpsProgressBar').style.width=(_CPS.idx/_CPS.items.length*100).toFixed(1)+'%';
  $('cps-acc').textContent='passive — just listen';
  $('cpsSentence').textContent=item.s;
  $('cpsFeedback').textContent='';$('cpsFeedback').className='feedback';
  triggerFlash();
  // PASSIVE paradigm: sentences advance automatically; CPS arises from prosodic
  // parsing without an overt judgment (intro rules: LISTEN / PASSIVE).
  _CPS.log.push({trial:_CPS.idx+1,natural:item.natural});
  _CPS.idx++;
  _CPS.T(cpsNext,1400);
}
function cpsEnd(){
  _CPS.clear();_CPS.active=false;
  $('cpsStimPhase').style.display='none';$('cpsProgressBar').style.width='100%';
  if(_CPS.isPractice){$('pcStats').innerHTML='PRESENTED <span>'+_CPS.items.length+'</span> sentences';hideAll();$('practiceComplete').style.display='flex';return;}
  window._cps_log=_CPS.log;$('exportBtn').disabled=false;
  var nat=_CPS.log.filter(function(r){return r.natural;}).length;
  var unnat=_CPS.log.filter(function(r){return !r.natural;}).length;
  $('cpsMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+_CPS.items.length+'</div><div class="vm-lbl">Sentences Presented</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+nat+'</div><div class="vm-lbl">Natural Boundary</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+unnat+'</div><div class="vm-lbl">Shifted Boundary</div></div>';
  $('cpsResultsPhase').style.display='block';updateSidebar();
}
function cpsExportCSV(){
  var log=window._cps_log;if(!log)return;
  var blob=new Blob(['trial,natural\n'+log.map(function(r){return[r.trial,r.natural?1:0].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='cps_'+Date.now()+'.csv';a.click();
}
// ══ N2b ══════════════════════════════════════════════════
var _N2B=null;
var N2B_STDS='ABCDEFGHIJKLMNOPQRSTUVWYZ'.split('');
function startN2B(isPractice){
  var N=taskTrials('N2B',5,200,isPractice),targetProb=0.2;
  _N2B={active:true,isPractice:isPractice,trial:0,maxTrials:N,hits:0,misses:0,fas:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_N2B._timers.push(t);return t;}
  _N2B.T=T;_N2B.clear=function(){_N2B._timers.forEach(clearTimeout);_N2B._timers=[];};
  hideAll();$('n2bScreen').style.display='flex';
  $('n2bPracticeBanner').style.display=isPractice?'block':'none';
  $('n2bProgressBar').style.width='0%';$('n2bStimPhase').style.display='flex';
  $('n2bResultsPhase').style.display='none';$('n2bFeedback').textContent='';
  $('si-task').textContent='N2b'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  function end(){
    _N2B.clear();_N2B.active=false;
    $('n2bStimPhase').style.display='none';$('n2bProgressBar').style.width='100%';
    if(isPractice){$('pcStats').innerHTML='HITS <span>'+_N2B.hits+'</span> FA <span>'+_N2B.fas+'</span>';hideAll();$('practiceComplete').style.display='flex';return;}
    window._n2b_log=_N2B.log;$('exportBtn').disabled=false;
    var nT=_N2B.log.filter(function(r){return r.isTarget;}).length;
    var nS=_N2B.log.filter(function(r){return !r.isTarget;}).length;
    var hr=nT?(_N2B.hits/nT).toFixed(2):0;var far=nS?(_N2B.fas/nS).toFixed(2):0;
    var dp=(hr-far).toFixed(2);
    var rtT=_N2B.log.filter(function(r){return r.isTarget&&r.rt;});
    var avgRT=rtT.length?(rtT.reduce(function(a,b){return a+b.rt;},0)/rtT.length).toFixed(0):'--';
    $('n2bMetrics').innerHTML=
      '<div class="vrt-metric"><div class="vm-val">'+_N2B.hits+'/'+nT+'</div><div class="vm-lbl">Hits</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+_N2B.fas+'</div><div class="vm-lbl">False Alarms</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+dp+'</div><div class="vm-lbl">d\'</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+avgRT+'ms</div><div class="vm-lbl">Mean RT (targets)</div></div>';
    $('n2bResultsPhase').style.display='block';updateSidebar();
  }
  function next(){
    if(!_N2B.active)return;if(_N2B.trial>=N){end();return;}
    _N2B.trial++;
    updateSidebar();   // refresh live left-pane readout each trial
    $('n2bProgressBar').style.width=(_N2B.trial/N*100).toFixed(1)+'%';
    $('n2b-trial').textContent='Trial '+_N2B.trial+'/'+N;
    $('n2b-hits').textContent='Hits: '+_N2B.hits;
    $('n2bFeedback').textContent='';$('n2bFeedback').className='feedback';
    var isTarget=Math.random()<targetProb;
    var letter=isTarget?'X':N2B_STDS[Math.floor(Math.random()*N2B_STDS.length)];
    var el=$('n2bLetter');el.textContent=letter;
    el.style.color=isTarget?'var(--gold)':'rgba(138,180,208,0.7)';
    triggerFlash();
    var onset=performance.now();var responded=false;
    var kh=function(e){
      if(!_N2B.active)return;if(e.code!=='Space'&&e.key!==' ')return;
      e.preventDefault();if(responded)return;responded=true;
      var rt=+(performance.now()-onset).toFixed(1);
      if(isTarget){_N2B.hits++;$('n2bFeedback').textContent=rt+'ms ✓';$('n2bFeedback').className='feedback ok';}
      else{_N2B.fas++;$('n2bFeedback').textContent='✗ false alarm';$('n2bFeedback').className='feedback err';}
      _N2B.log.push({trial:_N2B.trial,letter:letter,isTarget:isTarget,responded:true,rt:rt});
      document.removeEventListener('keydown',kh);
    };
    document.addEventListener('keydown',kh);
    // Show the letter briefly (150 ms) but KEEP the response window open. The
    // listener was previously removed ~150 ms after the letter cleared (~300 ms
    // total), so a SPACE press made after the X vanished never registered →
    // correct target responses were lost. Response window is now ~1 s from onset.
    T(function(){ el.textContent=''; }, 150);
    T(function(){
      document.removeEventListener('keydown',kh);
      if(!responded){
        if(isTarget)_N2B.misses++;
        _N2B.log.push({trial:_N2B.trial,letter:letter,isTarget:isTarget,responded:false,rt:null});
      }
      T(next,350+Math.random()*250);
    },1000);
  }
  T(next,800);
}
function n2bExportCSV(){
  var log=window._n2b_log;if(!log)return;
  var blob=new Blob(['trial,letter,is_target,responded,rt_ms\n'+log.map(function(r){return[r.trial,r.letter,r.isTarget?1:0,r.responded?1:0,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='n2b_'+Date.now()+'.csv';a.click();
}
// ══ Pd ═══════════════════════════════════════════════════
var _PD=null;
function startPD(isPractice){
  var N=taskTrials('PD',5,120,isPractice);
  _PD={active:true,isPractice:isPractice,trial:0,maxTrials:N,correct:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_PD._timers.push(t);return t;}
  _PD.T=T;_PD.clear=function(){_PD._timers.forEach(clearTimeout);_PD._timers=[];};
  hideAll();$('pdScreen').style.display='flex';
  $('pdPracticeBanner').style.display=isPractice?'block':'none';
  $('pdProgressBar').style.width='0%';$('pdStimPhase').style.display='flex';
  $('pdResultsPhase').style.display='none';$('pdFeedback').textContent='';
  $('si-task').textContent='Pd'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  function drawDisplay(targetTilt, distSide){
    var cvs=$('pdCanvas'),ctx=cvs.getContext('2d'),W=300,H=200;
    ctx.clearRect(0,0,W,H);ctx.fillStyle='#060d14';ctx.fillRect(0,0,W,H);
    // 8 circles arranged in a ring; one is a square (target); one is coloured (distractor)
    var positions=[];for(var i=0;i<8;i++){var a=i*Math.PI/4-Math.PI/2;positions.push({x:W/2+Math.cos(a)*72,y:H/2+Math.sin(a)*72});}
    positions.sort(function(){return Math.random()-0.5;});
    var targetIdx=0,distIdx=distSide==='left'?Math.floor(positions.length/2)+1:1;
    positions.forEach(function(pos,i){
      ctx.save();ctx.translate(pos.x,pos.y);
      if(i===targetIdx){
        // target: diamond tilted left or right
        ctx.rotate(targetTilt==='left'?-0.4:0.4);ctx.strokeStyle='#d4b456';ctx.lineWidth=2;ctx.strokeRect(-10,-10,20,20);
      } else if(i===distIdx){
        // distractor: bright circle
        ctx.beginPath();ctx.arc(0,0,9,0,Math.PI*2);ctx.fillStyle='rgba(224,92,92,0.8)';ctx.fill();
      } else {
        // standard: circle
        ctx.beginPath();ctx.arc(0,0,9,0,Math.PI*2);ctx.strokeStyle='rgba(138,180,208,0.5)';ctx.lineWidth=2;ctx.stroke();
      }
      ctx.restore();
    });
    return{targetTilt:targetTilt,distSide:distSide};
  }
  function end(){
    _PD.clear();_PD.active=false;
    $('pdStimPhase').style.display='none';$('pdProgressBar').style.width='100%';
    if(isPractice){$('pcStats').innerHTML='ACC <span>'+(_PD.correct/_PD.trial*100).toFixed(0)+'%</span>';hideAll();$('practiceComplete').style.display='flex';return;}
    window._pd_log=_PD.log;$('exportBtn').disabled=false;
    var distTrials=_PD.log.filter(function(r){return r.hasDist;});var noDistTrials=_PD.log.filter(function(r){return !r.hasDist;});
    var distRT=distTrials.filter(function(r){return r.rt;});var noDistRT=noDistTrials.filter(function(r){return r.rt;});
    var dRT=distRT.length?(distRT.reduce(function(a,b){return a+b.rt;},0)/distRT.length).toFixed(0):'--';
    var ndRT=noDistRT.length?(noDistRT.reduce(function(a,b){return a+b.rt;},0)/noDistRT.length).toFixed(0):'--';
    $('pdMetrics').innerHTML=
      '<div class="vrt-metric"><div class="vm-val">'+(_PD.correct/_PD.trial*100).toFixed(0)+'%</div><div class="vm-lbl">Accuracy</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+dRT+'ms</div><div class="vm-lbl">RT + distractor</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+ndRT+'ms</div><div class="vm-lbl">RT no distractor</div></div>';
    $('pdResultsPhase').style.display='block';updateSidebar();
  }
  function next(){
    if(!_PD.active)return;if(_PD.trial>=N){end();return;}
    _PD.trial++;
    $('pdProgressBar').style.width=(_PD.trial/N*100).toFixed(1)+'%';
    $('pd-trial').textContent='Trial '+_PD.trial+'/'+N;
    $('pd-acc').textContent='Acc: '+(_PD.trial>1?(_PD.correct/(_PD.trial-1)*100).toFixed(0)+'%':'--');
    $('pdFeedback').textContent='';$('pdFeedback').className='feedback';
    var tilt=Math.random()<0.5?'left':'right';
    var hasDist=Math.random()<0.7;var distSide=Math.random()<0.5?'left':'right';
    var info=drawDisplay(tilt,hasDist?distSide:null);
    triggerFlash();
    var onset=performance.now();var responded=false;
    var kh=function(e){
      if(!_PD.active)return;
      var resp=e.key==='f'||e.key==='F'?'left':e.key==='j'||e.key==='J'?'right':null;
      if(!resp)return;e.preventDefault();if(responded)return;responded=true;
      var rt=+(performance.now()-onset).toFixed(1);var correct=resp===tilt;
      if(correct)_PD.correct++;
      _PD.log.push({trial:_PD.trial,tilt:tilt,hasDist:hasDist,distSide:distSide,response:resp,correct:correct,rt:rt});
      var fb=$('pdFeedback');fb.textContent=correct?rt+'ms ✓':rt+'ms ✗';fb.className='feedback '+(correct?'ok':'err');
      document.removeEventListener('keydown',kh);
    };
    document.addEventListener('keydown',kh);
    // Brief stimulus; keep response window open ~1 s from onset.
    T(function(){
      var cvs=$('pdCanvas'),ctx=cvs.getContext('2d');ctx.clearRect(0,0,300,200);ctx.fillStyle='#060d14';ctx.fillRect(0,0,300,200);
    },200);
    T(function(){
      document.removeEventListener('keydown',kh);
      if(!responded)_PD.log.push({trial:_PD.trial,tilt:tilt,hasDist:hasDist,distSide:distSide,response:null,correct:false,rt:null});
      T(next,300+Math.random()*300);
    },1000);
  }
  T(next,800);
}
function pdExportCSV(){
  var log=window._pd_log;if(!log)return;
  var blob=new Blob(['trial,tilt,has_distractor,dist_side,response,correct,rt_ms\n'+log.map(function(r){return[r.trial,r.tilt,r.hasDist?1:0,r.distSide||'',r.response||'',r.correct?1:0,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='pd_'+Date.now()+'.csv';a.click();
}
// ══ ERAN ═════════════════════════════════════════════════
var _ERAN=null;
// C major context chords, then either regular (G->C) or irregular (bII->C, tritone sub)
// Represented as frequency arrays for Web Audio
var ERAN_CHORDS={
  C:[261.6,329.6,392.0],  // I C major
  F:[174.6,220.0,261.6],  // IV F major
  G:[196.0,246.9,293.7],  // V G major
  Am:[220.0,261.6,329.6], // vi A minor
  Db:[138.6,174.6,207.7], // bII Db major (irregular/Neapolitan)
  Bb:[116.5,146.8,174.6], // bVII Bb major (irregular)
};
var ERAN_SEQUENCES=[
  {seq:['C','F','G','C'],regular:true},
  {seq:['C','Am','F','G'],regular:true},
  {seq:['C','F','C','G'],regular:true},
  {seq:['C','Am','G','C'],regular:true},
  {seq:['C','F','G','Db'],regular:false},
  {seq:['C','Am','F','Db'],regular:false},
  {seq:['C','F','C','Bb'],regular:false},
  {seq:['C','Am','G','Bb'],regular:false},
];
function startERAN(isPractice){
  var seqs=[];var N=taskTrials('ERAN',5,64,isPractice);
  while(seqs.length<N)seqs=seqs.concat(ERAN_SEQUENCES.slice().sort(function(){return Math.random()-0.5;}));
  seqs=seqs.slice(0,N);
  _ERAN={active:true,isPractice:isPractice,seqs:seqs,idx:0,correct:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_ERAN._timers.push(t);return t;}
  _ERAN.T=T;_ERAN.clear=function(){_ERAN._timers.forEach(clearTimeout);_ERAN._timers=[];};
  hideAll();$('eranScreen').style.display='flex';
  $('eranPracticeBanner').style.display=isPractice?'block':'none';
  $('eranProgressBar').style.width='0%';$('eranStimPhase').style.display='flex';
  $('eranResultsPhase').style.display='none';$('eranFeedback').textContent='';
  $('si-task').textContent='ERAN'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  eranNext();
}
function eranPlayChord(freqs,dur){
  try{
    var ctx2=new (window.AudioContext||window.webkitAudioContext)();
    freqs.forEach(function(f){
      var o=ctx2.createOscillator();var g=ctx2.createGain();
      o.connect(g);g.connect(ctx2.destination);o.type='sine';o.frequency.value=f;
      g.gain.setValueAtTime(0,ctx2.currentTime);g.gain.linearRampToValueAtTime(0.15,ctx2.currentTime+0.02);
      g.gain.linearRampToValueAtTime(0,ctx2.currentTime+dur);
      o.start(ctx2.currentTime);o.stop(ctx2.currentTime+dur+0.05);
    });
  }catch(e){}
}
function eranNext(){
  if(!_ERAN.active)return;if(_ERAN.idx>=_ERAN.seqs.length){eranEnd();return;}
  var seq=_ERAN.seqs[_ERAN.idx];
  $('eran-trial').textContent=(_ERAN.idx+1)+'/'+_ERAN.seqs.length;
  $('eranProgressBar').style.width=(_ERAN.idx/_ERAN.seqs.length*100).toFixed(1)+'%';
  $('eran-acc').textContent='Acc: '+(_ERAN.idx?(_ERAN.correct/_ERAN.idx*100).toFixed(0)+'%':'--');
  $('eranFeedback').textContent='';$('eranFeedback').className='feedback';
  $('eranInstruct').textContent='Listening...';
  // Render chord symbols
  var cd=$('eranChords');cd.innerHTML='';
  seq.seq.forEach(function(ch,i){
    var span=document.createElement('span');
    span.style.cssText='font-family:"Source Code Pro",monospace;font-size:1rem;padding:6px 10px;border:1px solid #1a2f44;border-radius:3px;background:#0a1620;color:var(--dim);transition:all 0.1s;';
    span.textContent=ch;span.id='eranChord'+i;cd.appendChild(span);
    if(i<seq.seq.length-1){var arrow=document.createElement('span');arrow.textContent=' → ';arrow.style.color='var(--dim)';cd.appendChild(arrow);}
  });
  // Play sequence
  var delay=200;
  seq.seq.forEach(function(ch,i){
    _ERAN.T(function(){
      if(!_ERAN.active)return;
      var el=$('eranChord'+i);if(el)el.style.color=i===seq.seq.length-1?(seq.regular?'var(--gold)':'#e05c5c'):'var(--gold)';
      if(el)el.style.borderColor=i===seq.seq.length-1?(seq.regular?'rgba(212,180,86,0.5)':'rgba(224,92,92,0.5)'):'rgba(212,180,86,0.3)';
      eranPlayChord(ERAN_CHORDS[ch],0.25);
    },delay+i*400);
  });
  _ERAN.T(function(){
    if(!_ERAN.active)return;
    $('eranInstruct').textContent='Does the final chord fit?';
    triggerFlash();
    var onset=performance.now();
    var answered=false;
    var advance=function(){
      if(answered)return;answered=true;
      document.removeEventListener('keydown',kh);
      _ERAN.idx++;
      _ERAN.T(eranNext,700);
    };
    var kh=function(e){
      if(!_ERAN.active)return;
      var resp=e.key==='y'||e.key==='Y'?true:e.key==='n'||e.key==='N'?false:null;
      if(resp===null)return;e.preventDefault();
      if(answered)return;
      var rt=+(performance.now()-onset).toFixed(1);
      var correct=resp===seq.regular;if(correct)_ERAN.correct++;
      _ERAN.log.push({trial:_ERAN.idx+1,regular:seq.regular,response:resp,correct:correct,rt:rt});
      var fb=$('eranFeedback');fb.textContent=correct?rt+'ms ✓':rt+'ms ✗ — '+(seq.regular?'was regular':'was irregular');fb.className='feedback '+(correct?'ok':'err');
      advance();
    };
    document.addEventListener('keydown',kh);
    // Response window: if no Y/N within ~3 s, record a miss and advance so the
    // task never stalls on a single trial.
    _ERAN.T(function(){
      if(answered||!_ERAN.active)return;
      _ERAN.log.push({trial:_ERAN.idx+1,regular:seq.regular,response:null,correct:false,rt:null});
      var fb=$('eranFeedback');fb.textContent='— no response';fb.className='feedback timeout';
      advance();
    },3000);
  },delay+seq.seq.length*400+100);
}
function eranEnd(){
  _ERAN.clear();_ERAN.active=false;
  $('eranStimPhase').style.display='none';$('eranProgressBar').style.width='100%';
  if(_ERAN.isPractice){$('pcStats').innerHTML='ACC <span>'+(_ERAN.correct/_ERAN.seqs.length*100).toFixed(0)+'%</span>';hideAll();$('practiceComplete').style.display='flex';return;}
  window._eran_log=_ERAN.log;$('exportBtn').disabled=false;
  var irreg=_ERAN.log.filter(function(r){return !r.regular;});var reg=_ERAN.log.filter(function(r){return r.regular;});
  var iAcc=irreg.length?(irreg.filter(function(r){return r.correct;}).length/irreg.length*100).toFixed(0)+'%':'--';
  var rAcc=reg.length?(reg.filter(function(r){return r.correct;}).length/reg.length*100).toFixed(0)+'%':'--';
  $('eranMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+(_ERAN.correct/_ERAN.seqs.length*100).toFixed(0)+'%</div><div class="vm-lbl">Overall Acc.</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+iAcc+'</div><div class="vm-lbl">Irregular Detect.</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+rAcc+'</div><div class="vm-lbl">Regular Accept.</div></div>';
  $('eranResultsPhase').style.display='block';updateSidebar();
}
function eranExportCSV(){
  var log=window._eran_log;if(!log)return;
  var blob=new Blob(['trial,regular,response,correct,rt_ms\n'+log.map(function(r){return[r.trial,r.regular?1:0,r.response?1:0,r.correct?1:0,r.rt].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='eran_'+Date.now()+'.csv';a.click();
}
// ══ LPC ══════════════════════════════════════════════════
var _LPC=null;
var LPC_WORDS=['anchor','bishop','candle','dolphin','emerald','falcon','glacier','harbor',
  'island','jasmine','kettle','lantern','mango','napkin','obelisk','pilgrim',
  'quarry','raven','scarlet','temple','umber','velvet','walnut','yonder',
  'prism','cipher','zephyr','cobalt','fossil','gravel'];
function startLPC(isPractice){
  var N=taskTrials('LPC',8,24,isPractice);
  var targets=LPC_WORDS.slice(0,N).sort(function(){return Math.random()-0.5;});
  var foils=LPC_WORDS.slice(N,N+N/2).sort(function(){return Math.random()-0.5;});
  var testItems=targets.concat(foils).sort(function(){return Math.random()-0.5;});
  _LPC={active:true,isPractice:isPractice,targets:targets,foils:foils,testItems:testItems,
    phase:'study',si:0,hits:0,fas:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_LPC._timers.push(t);return t;}
  _LPC.T=T;_LPC.clear=function(){_LPC._timers.forEach(clearTimeout);_LPC._timers=[];};
  hideAll();$('lpcScreen').style.display='flex';$('lpcPracticeBanner').style.display=isPractice?'block':'none';
  $('lpcProgressBar').style.width='0%';$('lpcStimPhase').style.display='flex';$('lpcResultsPhase').style.display='none';
  $('si-task').textContent='LPC'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  $('lpcHint').textContent='';lpcStudy();
}
function lpcStudy(){
  _LPC.phase='study';$('lpc-phase').textContent=tr('STUDY');$('lpcInstruct').textContent='Study these words carefully';$('lpcHint').textContent='';
  var si=0;
  function show(){if(!_LPC.active)return;if(si>=_LPC.targets.length){setTimeout(lpcTest,1500);return;}
    $('lpc-trial').textContent=(si+1)+'/'+_LPC.targets.length;$('lpcProgressBar').style.width=(si/_LPC.targets.length*50).toFixed(1)+'%';
    $('lpcWord').textContent=_LPC.targets[si++].toUpperCase();$('lpcWord').style.color='var(--gold)';triggerFlash();setTimeout(show,1200);}show();
}
function lpcTest(){
  _LPC.phase='test';$('lpc-phase').textContent=tr('TEST');$('lpcInstruct').textContent='OLD or NEW?';$('lpcHint').textContent='F = OLD (studied) · J = NEW (not studied)';
  var ti=0;
  function next(){if(!_LPC.active)return;if(ti>=_LPC.testItems.length){lpcEnd();return;}
    var word=_LPC.testItems[ti++];var isOld=_LPC.targets.indexOf(word)>=0;
    $('lpc-trial').textContent=ti+'/'+_LPC.testItems.length;$('lpcProgressBar').style.width=(50+ti/_LPC.testItems.length*50).toFixed(1)+'%';
    $('lpcWord').textContent=word.toUpperCase();$('lpcWord').style.color='var(--mid)';
    $('lpcFeedback').textContent='';$('lpcFeedback').className='feedback';triggerFlash();
    var onset=performance.now();
    var kh=function(e){if(!_LPC.active)return;var r=e.key==='f'||e.key==='F'?true:e.key==='j'||e.key==='J'?false:null;if(r===null)return;e.preventDefault();
      var rt=+(performance.now()-onset).toFixed(1);var hit=r&&isOld;var fa=r&&!isOld;if(hit)_LPC.hits++;if(fa)_LPC.fas++;
      _LPC.log.push({word:word,isOld:isOld,response:r,correct:r===isOld,rt:rt});
      var fb=$('lpcFeedback');fb.textContent=r===isOld?rt+'ms ✓':rt+'ms ✗';fb.className='feedback '+(r===isOld?'ok':'err');
      document.removeEventListener('keydown',kh);setTimeout(next,400);}; document.addEventListener('keydown',kh);}next();
}
function lpcEnd(){
  _LPC.clear();_LPC.active=false;$('lpcStimPhase').style.display='none';$('lpcProgressBar').style.width='100%';
  if(_LPC.isPractice){$('pcStats').innerHTML='HITS <span>'+_LPC.hits+'</span>';hideAll();$('practiceComplete').style.display='flex';return;}
  window._lpc_log=_LPC.log;$('exportBtn').disabled=false;
  var nOld=_LPC.targets.length,nNew=_LPC.foils.length;
  var dp=+(_LPC.hits/nOld-_LPC.fas/nNew).toFixed(2);
  var hits=_LPC.log.filter(function(r){return r.isOld&&r.correct;});
  var avgRT=hits.length?(hits.reduce(function(a,b){return a+b.rt;},0)/hits.length).toFixed(0):'--';
  $('lpcMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+dp+'</div><div class="vm-lbl">d\'</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+_LPC.hits+'/'+nOld+'</div><div class="vm-lbl">Hits</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+avgRT+'ms</div><div class="vm-lbl">Mean RT (hits)</div></div>';
  $('lpcResultsPhase').style.display='block';updateSidebar();
}
function lpcExportCSV(){
  var log=window._lpc_log;if(!log)return;
  var blob=new Blob(['word,is_old,response,correct,rt_ms\n'+log.map(function(r){return[r.word,r.isOld?1:0,r.response?1:0,r.correct?1:0,r.rt].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='lpc_'+Date.now()+'.csv';a.click();
}
// ══ FRN ══════════════════════════════════════════════════
var _FRN=null;
function startFRN(isPractice){
  var N=taskTrials('FRN',8,80,isPractice);var points=0;
  _FRN={active:true,isPractice:isPractice,trial:0,maxTrials:N,points:0,wins:0,losses:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_FRN._timers.push(t);return t;}
  _FRN.T=T;_FRN.clear=function(){_FRN._timers.forEach(clearTimeout);_FRN._timers=[];};
  hideAll();$('frnScreen').style.display='flex';$('frnPracticeBanner').style.display=isPractice?'block':'none';
  $('frnProgressBar').style.width='0%';$('frnStimPhase').style.display='flex';$('frnResultsPhase').style.display='none';
  $('frnFeedback').textContent='';$('frnInstruct').textContent='Choose: press F or J';
  $('si-task').textContent='FRN'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  Trigger.send(10,'FRN_block_start',{task:'FRN',practice:isPractice,n_trials:N,deck_A_win:0.6,deck_B_win:0.4,classes:{40:'stim_onset',50:'choice_deck_A',51:'choice_deck_B',60:'feedback_win',61:'feedback_loss'}});
  function end(){
    _FRN.clear();_FRN.active=false;$('frnStimPhase').style.display='none';$('frnProgressBar').style.width='100%';
    Trigger.send(11,'FRN_block_end',{task:'FRN'});
    if(isPractice){$('pcStats').innerHTML='SCORE <span>'+_FRN.points+'</span>';hideAll();$('practiceComplete').style.display='flex';return;}
    window._frn_log=_FRN.log;$('exportBtn').disabled=false;
    $('frnMetrics').innerHTML=
      '<div class="vrt-metric"><div class="vm-val">'+_FRN.points+'</div><div class="vm-lbl">Final Score</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+_FRN.wins+'</div><div class="vm-lbl">Wins</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+_FRN.losses+'</div><div class="vm-lbl">Losses</div></div>';
    $('frnResultsPhase').style.display='block';updateSidebar();
  }
  function next(){
    if(!_FRN.active)return;if(_FRN.trial>=N){end();return;}
    _FRN.trial++;
    $('frnProgressBar').style.width=(_FRN.trial/N*100).toFixed(1)+'%';$('frn-trial').textContent='Trial '+_FRN.trial+'/'+N;
    $('frn-score').textContent='Score: '+_FRN.points;$('frnFeedback').textContent='';$('frnFeedback').className='feedback';
    // Two decks with different win probabilities
    var deck1win=0.6;var deck2win=0.4;
    var cd=$('frnChoice');cd.innerHTML='';
    var deck1=document.createElement('div');deck1.style.cssText='padding:18px 28px;border:2px solid rgba(138,180,208,0.4);border-radius:4px;cursor:pointer;font-family:"Source Code Pro",monospace;font-size:1rem;color:var(--mid);background:#0a1620;';deck1.textContent=tr('DECK A');
    var deck2=document.createElement('div');deck2.style.cssText=deck1.style.cssText;deck2.textContent=tr('DECK B');
    deck1.onmouseenter=function(){deck1.style.borderColor='var(--gold)';deck1.style.color='var(--gold)';};deck1.onmouseleave=function(){deck1.style.borderColor='rgba(138,180,208,0.4)';deck1.style.color='var(--mid)';};
    deck2.onmouseenter=function(){deck2.style.borderColor='var(--gold)';deck2.style.color='var(--gold)';};deck2.onmouseleave=function(){deck2.style.borderColor='rgba(138,180,208,0.4)';deck2.style.color='var(--mid)';};
    cd.appendChild(deck1);cd.appendChild(deck2);
    triggerFlash();
    var onset=performance.now();var responded=false;
    // Trigger: stim onset (40 = decks shown, generic)
    Trigger.send(40,'FRN_stim_onset',{task:'FRN',trial:_FRN.trial});
    var choose=function(deck){
      if(responded)return;responded=true;
      var rt=+(performance.now()-onset).toFixed(1);
      // Trigger: choice — 50 = chose deck A, 51 = chose deck B
      Trigger.send(deck===1?50:51, 'FRN_choice_'+(deck===1?'A':'B'), {task:'FRN',trial:_FRN.trial,deck:deck,rt:rt});
      var win=Math.random()<(deck===1?deck1win:deck2win);
      var pts=win?10:-10;_FRN.points+=pts;
      if(win)_FRN.wins++;else _FRN.losses++;
      cd.innerHTML='';
      var fb=$('frnFeedback');
      fb.textContent=win?'+10 WIN':'-10 LOSS';fb.className='feedback '+(win?'ok':'err');
      // Trigger: feedback — 60 win (positive), 61 loss (negative). KEY trigger for FRN epoching.
      Trigger.send(win?60:61, 'FRN_feedback_'+(win?'win':'loss'), {task:'FRN',trial:_FRN.trial,deck:deck,points:pts});
      $('frn-score').textContent='Score: '+_FRN.points;
      _FRN.log.push({trial:_FRN.trial,deck:deck,win:win,pts:pts,rt:rt});
      document.removeEventListener('keydown',kh);T(next,800);
    };
    deck1.onclick=function(){choose(1);};deck2.onclick=function(){choose(2);};
    var kh=function(e){if(!_FRN.active)return;if(e.key==='f'||e.key==='F'){e.preventDefault();choose(1);}else if(e.key==='j'||e.key==='J'){e.preventDefault();choose(2);}};
    document.addEventListener('keydown',kh);
  }
  T(next,600);
}
function frnExportCSV(){
  var log=window._frn_log;if(!log)return;
  var blob=new Blob(['trial,deck,win,points,rt_ms\n'+log.map(function(r){return[r.trial,r.deck,r.win?1:0,r.pts,r.rt].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='frn_'+Date.now()+'.csv';a.click();
}
// ══ CDA ══════════════════════════════════════════════════
var _CDA=null;
var CDA_COLOURS=['#e05c5c','#5b9fda','#81c784','#f5c842','#c891e0','#f5a742'];
function startCDA(isPractice){
  var N=taskTrials('CDA',5,80,isPractice);var setSizes=[2,3,4];
  _CDA={active:true,isPractice:isPractice,trial:0,maxTrials:N,correct:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_CDA._timers.push(t);return t;}
  _CDA.T=T;_CDA.clear=function(){_CDA._timers.forEach(clearTimeout);_CDA._timers=[];};
  hideAll();$('cdaScreen').style.display='flex';$('cdaPracticeBanner').style.display=isPractice?'block':'none';
  $('cdaProgressBar').style.width='0%';$('cdaStimPhase').style.display='flex';$('cdaResultsPhase').style.display='none';
  $('si-task').textContent='CDA'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  function drawArray(side,colours,probe,changed){
    var cvs=$('cdaCanvas'),ctx=cvs.getContext('2d'),W=320,H=160;
    ctx.clearRect(0,0,W,H);ctx.fillStyle='#060d14';ctx.fillRect(0,0,W,H);
    ctx.strokeStyle='rgba(138,180,208,0.2)';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(W/2,0);ctx.lineTo(W/2,H);ctx.stroke();
    if(!probe){
      var xs=side==='left'?[30,80,130]:[190,240,290];
      colours.forEach(function(col,i){if(xs[i]===undefined)return;ctx.fillStyle=col;ctx.fillRect(xs[i]-14,H/2-14,28,28);});
    } else {
      var pcolours=changed?colours.map(function(c,i){return i===0?CDA_COLOURS[(CDA_COLOURS.indexOf(c)+1)%CDA_COLOURS.length]:c;}):colours;
      var xs2=side==='left'?[30,80,130]:[190,240,290];
      pcolours.forEach(function(col,i){if(xs2[i]===undefined)return;ctx.fillStyle=col;ctx.fillRect(xs2[i]-14,H/2-14,28,28);});
    }
  }
  function end(){
    _CDA.clear();_CDA.active=false;$('cdaStimPhase').style.display='none';$('cdaProgressBar').style.width='100%';
    if(isPractice){$('pcStats').innerHTML='ACC <span>'+(_CDA.correct/_CDA.trial*100).toFixed(0)+'%</span>';hideAll();$('practiceComplete').style.display='flex';return;}
    window._cda_log=_CDA.log;$('exportBtn').disabled=false;
    var by={2:[],3:[],4:[]};_CDA.log.forEach(function(r){if(by[r.setSize])by[r.setSize].push(r.correct?1:0);});
    var metr='';[2,3,4].forEach(function(sz){var a=by[sz];if(a.length)metr+='<div class="vrt-metric"><div class="vm-val">'+(a.reduce(function(x,y){return x+y;},0)/a.length*100).toFixed(0)+'%</div><div class="vm-lbl">Acc (set '+sz+')</div></div>';});
    $('cdaMetrics').innerHTML=metr;$('cdaResultsPhase').style.display='block';updateSidebar();
  }
  function next(){
    if(!_CDA.active)return;if(_CDA.trial>=N){end();return;}
    _CDA.trial++;
    $('cdaProgressBar').style.width=(_CDA.trial/N*100).toFixed(1)+'%';$('cda-trial').textContent='Trial '+_CDA.trial+'/'+N;
    $('cda-acc').textContent='Acc: '+(_CDA.trial>1?(_CDA.correct/(_CDA.trial-1)*100).toFixed(0)+'%':'--');
    var sz=setSizes[Math.floor(Math.random()*setSizes.length)];
    var side=Math.random()<0.5?'left':'right';
    var cols=CDA_COLOURS.slice().sort(function(){return Math.random()-0.5;}).slice(0,sz);
    var changed=Math.random()<0.5;
    $('cdaInstruct').textContent='Memorise the colours on the '+side+' side';$('cdaHint').textContent='';
    $('cdaFeedback').textContent='';$('cdaFeedback').className='feedback';
    drawArray(side,cols,false,false);triggerFlash();
    T(function(){
      if(!_CDA.active)return;
      var cvs=$('cdaCanvas'),ctx=cvs.getContext('2d');ctx.clearRect(0,0,320,160);ctx.fillStyle='#060d14';ctx.fillRect(0,0,320,160);ctx.strokeStyle='rgba(138,180,208,0.2)';ctx.lineWidth=1;ctx.beginPath();ctx.moveTo(160,0);ctx.lineTo(160,160);ctx.stroke();
      $('cdaInstruct').textContent='Remember...';
      T(function(){
        if(!_CDA.active)return;
        drawArray(side,cols,true,changed);$('cdaInstruct').textContent='Did any colour change?';$('cdaHint').textContent='F = same · J = changed';triggerFlash();
        var onset=performance.now();var responded=false;
        var kh=function(e){if(!_CDA.active)return;var r=e.key==='f'||e.key==='F'?false:e.key==='j'||e.key==='J'?true:null;if(r===null)return;e.preventDefault();if(responded)return;responded=true;
          var rt=+(performance.now()-onset).toFixed(1);var correct=r===changed;if(correct)_CDA.correct++;
          _CDA.log.push({trial:_CDA.trial,setSize:sz,changed:changed,response:r,correct:correct,rt:rt});
          var fb=$('cdaFeedback');fb.textContent=correct?rt+'ms ✓':rt+'ms ✗';fb.className='feedback '+(correct?'ok':'err');
          document.removeEventListener('keydown',kh);T(next,600);};
        document.addEventListener('keydown',kh);},900);},200);
  }
  T(next,600);
}
function cdaExportCSV(){
  var log=window._cda_log;if(!log)return;
  var blob=new Blob(['trial,set_size,changed,response,correct,rt_ms\n'+log.map(function(r){return[r.trial,r.setSize,r.changed?1:0,r.response?1:0,r.correct?1:0,r.rt].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='cda_'+Date.now()+'.csv';a.click();
}
// ══ LDAEP ════════════════════════════════════════════════
var _LDAEP=null;
function startLDAEP(isPractice){
  var repsPerLevel=isPractice?4:16;var levels=[0.04,0.1,0.18,0.26,0.34];
  var trials=[];levels.forEach(function(lv,i){for(var r=0;r<repsPerLevel;r++)trials.push({level:lv,levelIdx:i+1});});
  trials.sort(function(){return Math.random()-0.5;});
  _LDAEP={active:true,isPractice:isPractice,trials:trials,idx:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_LDAEP._timers.push(t);return t;}
  _LDAEP.T=T;_LDAEP.clear=function(){_LDAEP._timers.forEach(clearTimeout);_LDAEP._timers=[];};
  hideAll();$('ldaepScreen').style.display='flex';$('ldaepPracticeBanner').style.display=isPractice?'block':'none';
  $('ldaepProgressBar').style.width='0%';$('ldaepStimPhase').style.display='flex';$('ldaepResultsPhase').style.display='none';
  $('si-task').textContent='LDAEP'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  function end(){
    _LDAEP.clear();_LDAEP.active=false;$('ldaepStimPhase').style.display='none';$('ldaepProgressBar').style.width='100%';
    if(isPractice){$('pcStats').innerHTML='DONE <span>'+_LDAEP.idx+'</span> tones';hideAll();$('practiceComplete').style.display='flex';return;}
    window._ldaep_log=_LDAEP.log;$('exportBtn').disabled=false;
    $('ldaepMetrics').innerHTML=
      '<div class="vrt-metric"><div class="vm-val">'+_LDAEP.idx+'</div><div class="vm-lbl">Tones Presented</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+levels.length+'</div><div class="vm-lbl">Intensity Levels</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+repsPerLevel+'</div><div class="vm-lbl">Reps / Level</div></div>';
    $('ldaepResultsPhase').style.display='block';updateSidebar();
  }
  function next(){
    if(!_LDAEP.active)return;if(_LDAEP.idx>=_LDAEP.trials.length){end();return;}
    var trial=_LDAEP.trials[_LDAEP.idx];
    $('ldaepProgressBar').style.width=(_LDAEP.idx/_LDAEP.trials.length*100).toFixed(1)+'%';
    $('ldaep-trial').textContent='Tone '+(_LDAEP.idx+1)+'/'+_LDAEP.trials.length;
    $('ldaep-level').textContent='Level '+trial.levelIdx;
    for(var i=1;i<=5;i++){var bar=$('ldaepBar'+i);bar.style.height=(i*10)+'px';bar.style.background=i<=trial.levelIdx?'rgba(212,180,86,0.7)':'rgba(212,180,86,0.15)';}
    var tone=$('ldaepTone');tone.style.background='rgba(212,180,86,'+(0.1+trial.level)+')';tone.textContent='♪';tone.style.transform='scale('+(0.8+trial.level*2)+')';
    // R12: custom audio override — multiply trial.level by 2 since file
    // amplitude is typically already normalized, while the synth path uses
    // small gain values (0.04–0.34) to match perceived loudness.
    var ldaepUsedCustom = false;
    if (typeof CustomAudio !== 'undefined') {
      ldaepUsedCustom = CustomAudio.tryPlay('ldaep-tone', trial.level * 2);
    }
    if (!ldaepUsedCustom) {
      try{
        var ctx2=new (window.AudioContext||window.webkitAudioContext)();
        var osc=ctx2.createOscillator();var gain=ctx2.createGain();
        osc.connect(gain);gain.connect(ctx2.destination);osc.type='sine';osc.frequency.value=1000;
        gain.gain.setValueAtTime(0,ctx2.currentTime);gain.gain.linearRampToValueAtTime(trial.level,ctx2.currentTime+0.01);
        gain.gain.linearRampToValueAtTime(0,ctx2.currentTime+0.05);
        osc.start(ctx2.currentTime);osc.stop(ctx2.currentTime+0.1);
      }catch(e){}
    }
    triggerFlash();_LDAEP.log.push({trial:_LDAEP.idx+1,levelIdx:trial.levelIdx,level:trial.level});_LDAEP.idx++;
    T(function(){tone.textContent='';tone.style.transform='scale(1)';tone.style.background='#060d14';T(next,400+Math.random()*300);},60);
  }
  T(next,600);
}
function ldaepExportCSV(){
  var log=window._ldaep_log;if(!log)return;
  var blob=new Blob(['trial,level_idx,level_amplitude\n'+log.map(function(r){return[r.trial,r.levelIdx,r.level].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='ldaep_'+Date.now()+'.csv';a.click();
}// ══ C1 ═══════════════════════════════════════════════════
var _C1=null;
function c1DrawFrame(field, isTarget, showFix){
  var cvs=$('c1Canvas');if(!cvs)return;
  var ctx=cvs.getContext('2d'),W=340,H=220,cx=W/2,cy=H/2;
  ctx.clearRect(0,0,W,H);ctx.fillStyle='#060d14';ctx.fillRect(0,0,W,H);
  // Fixation cross
  if(showFix){ctx.strokeStyle=isTarget?'rgba(212,180,86,0.9)':'rgba(138,180,208,0.7)';ctx.lineWidth=2;ctx.beginPath();ctx.moveTo(cx-8,cy);ctx.lineTo(cx+8,cy);ctx.moveTo(cx,cy-8);ctx.lineTo(cx,cy+8);ctx.stroke();}
  // Stimulus patch
  if(field){var py=field==='upper'?cy-68:cy+68;var bright=isTarget?0.35:0.65;ctx.fillStyle='rgba(255,255,255,'+bright+')';ctx.beginPath();ctx.arc(cx,py,20,0,Math.PI*2);ctx.fill();}
}
function startC1(isPractice){
  var N=taskTrials('C1',5,128,isPractice); var targetProb=0.25;
  _C1={active:true,isPractice:isPractice,trial:0,maxTrials:N,hits:0,misses:0,fas:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_C1._timers.push(t);return t;}
  _C1.T=T;_C1.clear=function(){_C1._timers.forEach(clearTimeout);_C1._timers=[];};
  hideAll();$('c1Screen').style.display='flex';
  $('c1PracticeBanner').style.display=isPractice?'block':'none';
  $('c1ProgressBar').style.width='0%';$('c1StimPhase').style.display='flex';
  $('c1ResultsPhase').style.display='none';$('c1Feedback').textContent='';
  $('si-task').textContent='C1'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  c1DrawFrame(null,false,true);
  function end(){
    _C1.clear();_C1.active=false;c1DrawFrame(null,false,false);
    $('c1StimPhase').style.display='none';$('c1ProgressBar').style.width='100%';
    if(isPractice){$('pcStats').innerHTML='HITS <span>'+_C1.hits+'</span> FA <span>'+_C1.fas+'</span>';hideAll();$('practiceComplete').style.display='flex';return;}
    window._c1_log=_C1.log;$('exportBtn').disabled=false;
    var nT=_C1.log.filter(function(r){return r.isTarget;}).length;
    var nS=_C1.log.filter(function(r){return !r.isTarget;}).length;
    var hr=nT?(_C1.hits/nT).toFixed(2):0; var far=nS?(_C1.fas/nS).toFixed(2):0;
    var dp=(parseFloat(hr)-parseFloat(far)).toFixed(2);
    $('c1Metrics').innerHTML=
      '<div class="vrt-metric"><div class="vm-val">'+_C1.hits+'/'+nT+'</div><div class="vm-lbl">Hits</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+_C1.fas+'</div><div class="vm-lbl">False Alarms</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+dp+'</div><div class="vm-lbl">d\'</div></div>';
    $('c1ResultsPhase').style.display='block';updateSidebar();
  }
  function next(){
    if(!_C1.active)return;if(_C1.trial>=N){end();return;}
    _C1.trial++;
    $('c1ProgressBar').style.width=(_C1.trial/N*100).toFixed(1)+'%';
    $('c1-trial').textContent='Trial '+_C1.trial+'/'+N;
    $('c1-hits').textContent='Hits: '+_C1.hits;
    $('c1Feedback').textContent='';$('c1Feedback').className='feedback';
    var field=Math.random()<0.5?'upper':'lower';
    var isTarget=Math.random()<targetProb;
    c1DrawFrame(field,isTarget,true);
    triggerFlash();
    var onset=performance.now();var responded=false;
    var kh=function(e){
      if(!_C1.active)return;if(e.code!=='Space'&&e.key!==' ')return;
      e.preventDefault();if(responded)return;responded=true;
      var rt=+(performance.now()-onset).toFixed(1);
      if(isTarget){_C1.hits++;$('c1Feedback').textContent=rt+'ms ✓';$('c1Feedback').className='feedback ok';}
      else{_C1.fas++;$('c1Feedback').textContent='false alarm';$('c1Feedback').className='feedback err';}
      _C1.log.push({trial:_C1.trial,field:field,isTarget:isTarget,responded:true,rt:rt});
      document.removeEventListener('keydown',kh);
    };
    document.addEventListener('keydown',kh);
    // Brief stimulus; keep response window open ~1 s from onset.
    T(function(){ c1DrawFrame(null,false,true); },100);
    T(function(){
      document.removeEventListener('keydown',kh);
      if(!responded){if(isTarget)_C1.misses++;_C1.log.push({trial:_C1.trial,field:field,isTarget:isTarget,responded:false,rt:null});}
      T(next,300+Math.random()*400);
    },1000);
  }
  T(next,800);
}
function c1ExportCSV(){
  var log=window._c1_log;if(!log)return;
  var blob=new Blob(['trial,field,is_target,responded,rt_ms\n'+log.map(function(r){return[r.trial,r.field,r.isTarget?1:0,r.responded?1:0,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='c1_'+Date.now()+'.csv';a.click();
}
// ══ PMN ══════════════════════════════════════════════════
var _PMN=null;
// Items: stem, target, sensible (Y), phonMismatch (target onset unexpected)
var PMN_ITEMS=[
  {stem:'The nurse gave the patient some',target:'medicine',sensible:true,phon:false},
  {stem:'The nurse gave the patient some',target:'blankets',sensible:true,phon:true},
  {stem:'The nurse gave the patient some',target:'helicopter',sensible:false,phon:false},
  {stem:'The chef prepared a delicious',target:'meal',sensible:true,phon:false},
  {stem:'The chef prepared a delicious',target:'dinner',sensible:true,phon:true},
  {stem:'The chef prepared a delicious',target:'bicycle',sensible:false,phon:false},
  {stem:'The student studied hard for the',target:'exam',sensible:true,phon:false},
  {stem:'The student studied hard for the',target:'test',sensible:true,phon:true},
  {stem:'The student studied hard for the',target:'ocean',sensible:false,phon:false},
  {stem:'The gardener watered the',target:'plants',sensible:true,phon:false},
  {stem:'The gardener watered the',target:'garden',sensible:true,phon:true},
  {stem:'The gardener watered the',target:'thunder',sensible:false,phon:false},
  {stem:'The pilot landed the',target:'plane',sensible:true,phon:false},
  {stem:'The pilot landed the',target:'aircraft',sensible:true,phon:true},
  {stem:'The pilot landed the',target:'sandwich',sensible:false,phon:false},
  {stem:'The librarian returned the',target:'books',sensible:true,phon:false},
  {stem:'The librarian returned the',target:'borrowed',sensible:false,phon:true},
  {stem:'The librarian returned the',target:'volcano',sensible:false,phon:false},
  {stem:'The doctor examined the',target:'patient',sensible:true,phon:false},
  {stem:'The doctor examined the',target:'records',sensible:true,phon:true},
  {stem:'The doctor examined the',target:'furniture',sensible:false,phon:false},
  {stem:'The baker put the bread in the',target:'oven',sensible:true,phon:false},
  {stem:'The baker put the bread in the',target:'basket',sensible:true,phon:true},
  {stem:'The baker put the bread in the',target:'river',sensible:false,phon:false},
  {stem:'She played a song on the',target:'piano',sensible:true,phon:false},
  {stem:'She played a song on the',target:'strings',sensible:true,phon:true},
  {stem:'She played a song on the',target:'mountain',sensible:false,phon:false},
  {stem:'The carpenter fixed the broken',target:'chair',sensible:true,phon:false},
  {stem:'The carpenter fixed the broken',target:'cabinet',sensible:true,phon:true},
  {stem:'The carpenter fixed the broken',target:'language',sensible:false,phon:false},
  {stem:'The farmer harvested the ripe',target:'wheat',sensible:true,phon:false},
  {stem:'The farmer harvested the ripe',target:'wonderful',sensible:false,phon:true},
  {stem:'The farmer harvested the ripe',target:'telephone',sensible:false,phon:false},
  {stem:'The mechanic repaired the old',target:'engine',sensible:true,phon:false},
  {stem:'The mechanic repaired the old',target:'elephant',sensible:false,phon:true},
  {stem:'The mechanic repaired the old',target:'mountain',sensible:false,phon:false},
  {stem:'The teacher graded the final',target:'papers',sensible:true,phon:false},
  {stem:'The teacher graded the final',target:'pancakes',sensible:false,phon:true},
  {stem:'The teacher graded the final',target:'rainbow',sensible:false,phon:false},
  {stem:'The sailor tied the heavy',target:'rope',sensible:true,phon:false},
  {stem:'The sailor tied the heavy',target:'robot',sensible:false,phon:true},
  {stem:'The sailor tied the heavy',target:'melody',sensible:false,phon:false},
  {stem:'The painter mixed the bright',target:'colors',sensible:true,phon:false},
  {stem:'The painter mixed the bright',target:'cookies',sensible:false,phon:true},
  {stem:'The painter mixed the bright',target:'thunder',sensible:false,phon:false},
  {stem:'The dentist examined her sore',target:'tooth',sensible:true,phon:false},
  {stem:'The dentist examined her sore',target:'tunnel',sensible:false,phon:true},
  {stem:'The dentist examined her sore',target:'sunset',sensible:false,phon:false},
  {stem:'The waiter carried the full',target:'tray',sensible:true,phon:false},
  {stem:'The waiter carried the full',target:'trumpet',sensible:false,phon:true},
  {stem:'The waiter carried the full',target:'window',sensible:false,phon:false},
  {stem:'The scientist recorded the new',target:'data',sensible:true,phon:false},
  {stem:'The scientist recorded the new',target:'daughter',sensible:false,phon:true},
  {stem:'The scientist recorded the new',target:'blanket',sensible:false,phon:false},
  {stem:'The fisherman caught a large',target:'fish',sensible:true,phon:false},
  {stem:'The fisherman caught a large',target:'finger',sensible:false,phon:true},
  {stem:'The fisherman caught a large',target:'pillow',sensible:false,phon:false},
  {stem:'The athlete trained for the big',target:'race',sensible:true,phon:false},
  {stem:'The athlete trained for the big',target:'radio',sensible:false,phon:true},
  {stem:'The athlete trained for the big',target:'kitchen',sensible:false,phon:false},
  {stem:'The mother rocked the sleepy',target:'baby',sensible:true,phon:false},
  {stem:'The mother rocked the sleepy',target:'basket',sensible:false,phon:true},
  {stem:'The mother rocked the sleepy',target:'engine',sensible:false,phon:false},
  {stem:'The electrician checked the faulty',target:'wiring',sensible:true,phon:false},
  {stem:'The electrician checked the faulty',target:'window',sensible:false,phon:true},
  {stem:'The electrician checked the faulty',target:'orchestra',sensible:false,phon:false},
  {stem:'The barber trimmed the long',target:'hair',sensible:true,phon:false},
  {stem:'The barber trimmed the long',target:'hammer',sensible:false,phon:true},
  {stem:'The barber trimmed the long',target:'puddle',sensible:false,phon:false},
  {stem:'The judge reviewed the legal',target:'case',sensible:true,phon:false},
  {stem:'The judge reviewed the legal',target:'candle',sensible:false,phon:true},
  {stem:'The judge reviewed the legal',target:'feather',sensible:false,phon:false},
  {stem:'The plumber repaired the leaking',target:'pipe',sensible:true,phon:false},
  {stem:'The plumber repaired the leaking',target:'pirate',sensible:false,phon:true},
  {stem:'The plumber repaired the leaking',target:'mountain',sensible:false,phon:false},
  {stem:'The astronomer studied the distant',target:'stars',sensible:true,phon:false},
  {stem:'The astronomer studied the distant',target:'staircase',sensible:false,phon:true},
  {stem:'The astronomer studied the distant',target:'breakfast',sensible:false,phon:false},
  {stem:'The tailor stitched the torn',target:'fabric',sensible:true,phon:false},
  {stem:'The tailor stitched the torn',target:'falcon',sensible:false,phon:true},
  {stem:'The tailor stitched the torn',target:'thunder',sensible:false,phon:false},
  {stem:'The surgeon performed the delicate',target:'surgery',sensible:true,phon:false},
  {stem:'The surgeon performed the delicate',target:'circus',sensible:false,phon:true},
  {stem:'The surgeon performed the delicate',target:'window',sensible:false,phon:false},
  {stem:'The driver parked the red',target:'car',sensible:true,phon:false},
  {stem:'The driver parked the red',target:'carpet',sensible:false,phon:true},
  {stem:'The driver parked the red',target:'lantern',sensible:false,phon:false},
  {stem:'The chef seasoned the fresh',target:'soup',sensible:true,phon:false},
  {stem:'The chef seasoned the fresh',target:'sofa',sensible:false,phon:true},
  {stem:'The chef seasoned the fresh',target:'planet',sensible:false,phon:false},
  {stem:'The author published her latest',target:'novel',sensible:true,phon:false},
  {stem:'The author published her latest',target:'nostril',sensible:false,phon:true},
  {stem:'The author published her latest',target:'kettle',sensible:false,phon:false},
  {stem:'The hikers followed the narrow',target:'trail',sensible:true,phon:false},
  {stem:'The hikers followed the narrow',target:'tractor',sensible:false,phon:true},
  {stem:'The hikers followed the narrow',target:'sandwich',sensible:false,phon:false},
  {stem:'The jeweler polished the precious',target:'gem',sensible:true,phon:false},
  {stem:'The jeweler polished the precious',target:'jacket',sensible:false,phon:true},
  {stem:'The jeweler polished the precious',target:'thunder',sensible:false,phon:false},
  {stem:'The baker frosted the birthday',target:'cake',sensible:true,phon:false},
  {stem:'The baker frosted the birthday',target:'camel',sensible:false,phon:true},
  {stem:'The baker frosted the birthday',target:'mirror',sensible:false,phon:false},
  {stem:'The captain steered the wooden',target:'ship',sensible:true,phon:false},
  {stem:'The captain steered the wooden',target:'shadow',sensible:false,phon:true},
  {stem:'The captain steered the wooden',target:'rabbit',sensible:false,phon:false},
  {stem:'The clerk stamped the official',target:'document',sensible:true,phon:false},
  {stem:'The clerk stamped the official',target:'donkey',sensible:false,phon:true},
  {stem:'The clerk stamped the official',target:'pillow',sensible:false,phon:false},
  {stem:'The musician tuned her acoustic',target:'guitar',sensible:true,phon:false},
  {stem:'The musician tuned her acoustic',target:'garbage',sensible:false,phon:true},
  {stem:'The musician tuned her acoustic',target:'lantern',sensible:false,phon:false},
  {stem:'The vet treated the injured',target:'animal',sensible:true,phon:false},
  {stem:'The vet treated the injured',target:'avenue',sensible:false,phon:true},
  {stem:'The vet treated the injured',target:'biscuit',sensible:false,phon:false},
  {stem:'The architect designed the modern',target:'building',sensible:true,phon:false},
  {stem:'The architect designed the modern',target:'bicycle',sensible:false,phon:true},
  {stem:'The architect designed the modern',target:'orange',sensible:false,phon:false},
  {stem:'The gardener pruned the rose',target:'bushes',sensible:true,phon:false},
  {stem:'The gardener pruned the rose',target:'bucket',sensible:false,phon:true},
  {stem:'The gardener pruned the rose',target:'whistle',sensible:false,phon:false},
];
function startPMN(isPractice){
  var items=PMN_ITEMS.slice().sort(function(){return Math.random()-0.5;});
  if(isPractice)items=items.slice(0,taskTrials('PMN',5,items.length,true));
  _PMN={active:true,isPractice:isPractice,items:items,idx:0,correct:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_PMN._timers.push(t);return t;}
  _PMN.T=T;_PMN.clear=function(){_PMN._timers.forEach(clearTimeout);_PMN._timers=[];};
  hideAll();$('pmnScreen').style.display='flex';
  $('pmnPracticeBanner').style.display=isPractice?'block':'none';
  $('pmnProgressBar').style.width='0%';$('pmnStimPhase').style.display='flex';
  $('pmnResultsPhase').style.display='none';$('pmnFeedback').textContent='';
  $('si-task').textContent='PMN'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  pmnNext();
}
function pmnNext(){
  if(!_PMN.active)return;if(_PMN.idx>=_PMN.items.length){pmnEnd();return;}
  var item=_PMN.items[_PMN.idx];
  $('pmn-trial').textContent=(_PMN.idx+1)+'/'+_PMN.items.length;
  $('pmnProgressBar').style.width=(_PMN.idx/_PMN.items.length*100).toFixed(1)+'%';
  $('pmn-acc').textContent='passive — just listen';
  $('pmnStem').textContent=item.stem;
  $('pmnTarget').textContent='';$('pmnPhonHint').textContent='';
  $('pmnFeedback').textContent='';$('pmnFeedback').className='feedback';
  // PASSIVE paradigm: the sentence STEM is spoken (and shown); then the TARGET
  // word is spoken — the PMN arises from the phonological onset of that target.
  // The target is triggered when the stem finishes speaking so the EEG marker
  // aligns with spoken-word onset (falls back to a fixed delay if no TTS).
  var fired=false;
  function fireTarget(){
    if(fired||!_PMN.active)return; fired=true;
    $('pmnTarget').textContent=item.target.toUpperCase();
    // (No condition cue: the participant must not be told which trials are the
    //  phonological-mismatch deviants — that would contaminate the passive ERP.)
    triggerFlash();
    pmnSpeak(item.target);
    _PMN.log.push({trial:_PMN.idx+1,sensible:item.sensible,phonMismatch:item.phon});
    _PMN.idx++;
    _PMN.T(pmnNext,1700);  // advance after the target has been heard
  }
  var spoke=pmnSpeak(item.stem, fireTarget);
  // Fallback / safety: if TTS is unavailable or onend never fires, advance anyway.
  _PMN.T(fireTarget, spoke?2600:1200);
}
// Self-contained speech for PMN — does NOT depend on the voice-input toggle
// (Speech.ttsOn), since PMN is a passive listening task that must always be
// audible. Returns true if an utterance was queued; calls onDone when it ends.
function pmnSpeak(text, onDone){
  try{
    var synth=window.speechSynthesis;
    if(!synth){ if(onDone) onDone(); return false; }
    var u=new SpeechSynthesisUtterance(text);
    u.rate=0.95; u.pitch=1.0; u.volume=1.0;
    var voices=synth.getVoices();
    var pref=voices.find(function(v){return /en.*US/i.test(v.lang);}) ||
             voices.find(function(v){return /en/i.test(v.lang);});
    if(pref) u.voice=pref;
    if(onDone){ u.onend=onDone; u.onerror=onDone; }
    synth.speak(u);
    return true;
  }catch(e){ if(onDone) onDone(); return false; }
}
function pmnEnd(){
  _PMN.clear();_PMN.active=false;
  try{ if(window.speechSynthesis) window.speechSynthesis.cancel(); }catch(e){}
  $('pmnStimPhase').style.display='none';$('pmnProgressBar').style.width='100%';
  if(_PMN.isPractice){$('pcStats').innerHTML='PRESENTED <span>'+_PMN.items.length+'</span> word pairs';hideAll();$('practiceComplete').style.display='flex';return;}
  window._pmn_log=_PMN.log;$('exportBtn').disabled=false;
  var phon=_PMN.log.filter(function(r){return r.phonMismatch;}).length;
  var match=_PMN.log.filter(function(r){return !r.phonMismatch;}).length;
  $('pmnMetrics').innerHTML=
    '<div class="vrt-metric"><div class="vm-val">'+_PMN.items.length+'</div><div class="vm-lbl">Pairs Presented</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+phon+'</div><div class="vm-lbl">Phon. Mismatch</div></div>'+
    '<div class="vrt-metric"><div class="vm-val">'+match+'</div><div class="vm-lbl">Match</div></div>';
  $('pmnResultsPhase').style.display='block';updateSidebar();
}
function pmnExportCSV(){
  var log=window._pmn_log;if(!log)return;
  var blob=new Blob(['trial,sensible,phon_mismatch\n'+log.map(function(r){return[r.trial,r.sensible?1:0,r.phonMismatch?1:0].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='pmn_'+Date.now()+'.csv';a.click();
}
// ══ VPP ══════════════════════════════════════════════════
var _VPP=null;
function vppDrawFace(ctx,cx,cy,inverted){
  ctx.save();if(inverted){ctx.translate(cx,cy);ctx.scale(1,-1);ctx.translate(-cx,-cy);}
  // Head
  ctx.beginPath();ctx.ellipse(cx,cy,42,52,0,0,Math.PI*2);ctx.strokeStyle='rgba(212,180,86,0.7)';ctx.lineWidth=2;ctx.stroke();
  // Eyes
  [[cx-16,cy-14],[cx+16,cy-14]].forEach(function(p){ctx.beginPath();ctx.ellipse(p[0],p[1],8,5,0,0,Math.PI*2);ctx.stroke();});
  // Nose
  ctx.beginPath();ctx.moveTo(cx,cy-4);ctx.lineTo(cx-5,cy+12);ctx.lineTo(cx+5,cy+12);ctx.stroke();
  // Mouth
  ctx.beginPath();ctx.arc(cx,cy+18,14,0.2,Math.PI-0.2);ctx.stroke();
  ctx.restore();
}
function vppDrawObject(ctx,cx,cy,type){
  ctx.strokeStyle='rgba(138,180,208,0.6)';ctx.lineWidth=2;
  if(type===0){ctx.strokeRect(cx-36,cy-36,72,72);}
  else if(type===1){ctx.beginPath();ctx.moveTo(cx,cy-44);ctx.lineTo(cx+38,cy+28);ctx.lineTo(cx-38,cy+28);ctx.closePath();ctx.stroke();}
  else{ctx.beginPath();ctx.arc(cx,cy,40,0,Math.PI*2);ctx.stroke();}
}
function startVPP(isPractice){
  var N=taskTrials('VPP',5,128,isPractice);
  _VPP={active:true,isPractice:isPractice,trial:0,maxTrials:N,correct:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_VPP._timers.push(t);return t;}
  _VPP.T=T;_VPP.clear=function(){_VPP._timers.forEach(clearTimeout);_VPP._timers=[];};
  hideAll();$('vppScreen').style.display='flex';
  $('vppPracticeBanner').style.display=isPractice?'block':'none';
  $('vppProgressBar').style.width='0%';$('vppStimPhase').style.display='flex';
  $('vppResultsPhase').style.display='none';$('vppFeedback').textContent='';
  $('si-task').textContent='VPP'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  function end(){
    _VPP.clear();_VPP.active=false;
    $('vppStimPhase').style.display='none';$('vppProgressBar').style.width='100%';
    if(isPractice){$('pcStats').innerHTML='ACC <span>'+(_VPP.correct/_VPP.trial*100).toFixed(0)+'%</span>';hideAll();$('practiceComplete').style.display='flex';return;}
    window._vpp_log=_VPP.log;$('exportBtn').disabled=false;
    var faces=_VPP.log.filter(function(r){return r.isFace;});
    var objs=_VPP.log.filter(function(r){return !r.isFace;});
    var fAcc=faces.length?(faces.filter(function(r){return r.correct;}).length/faces.length*100).toFixed(0)+'%':'--';
    var oAcc=objs.length?(objs.filter(function(r){return r.correct;}).length/objs.length*100).toFixed(0)+'%':'--';
    var rtF=faces.filter(function(r){return r.rt;});var avgF=rtF.length?(rtF.reduce(function(a,b){return a+b.rt;},0)/rtF.length).toFixed(0):'--';
    $('vppMetrics').innerHTML=
      '<div class="vrt-metric"><div class="vm-val">'+(_VPP.correct/_VPP.trial*100).toFixed(0)+'%</div><div class="vm-lbl">Overall Acc.</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+fAcc+'</div><div class="vm-lbl">Face Acc.</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+avgF+'ms</div><div class="vm-lbl">Face RT</div></div>';
    $('vppResultsPhase').style.display='block';updateSidebar();
  }
  function next(){
    if(!_VPP.active)return;if(_VPP.trial>=N){end();return;}
    _VPP.trial++;
    $('vppProgressBar').style.width=(_VPP.trial/N*100).toFixed(1)+'%';
    $('vpp-trial').textContent='Trial '+_VPP.trial+'/'+N;
    $('vpp-acc').textContent='Acc: '+(_VPP.trial>1?(_VPP.correct/(_VPP.trial-1)*100).toFixed(0)+'%':'--');
    $('vppFeedback').textContent='';$('vppFeedback').className='feedback';
    var isFace=Math.random()<0.5;var inverted=!isFace&&Math.random()<0.25;
    var objType=Math.floor(Math.random()*3);
    var cvs=$('vppCanvas'),ctx=cvs.getContext('2d'),W=200,H=200,cx=100,cy=100;
    ctx.clearRect(0,0,W,H);ctx.fillStyle='#060d14';ctx.fillRect(0,0,W,H);
    if(isFace)vppDrawFace(ctx,cx,cy,false);
    else vppDrawObject(ctx,cx,cy,objType);
    triggerFlash();var onset=performance.now();var responded=false;
    var kh=function(e){
      if(!_VPP.active)return;
      var resp=e.key==='f'||e.key==='F'?true:e.key==='j'||e.key==='J'?false:null;
      if(resp===null)return;e.preventDefault();if(responded)return;responded=true;
      var rt=+(performance.now()-onset).toFixed(1);var correct=resp===isFace;if(correct)_VPP.correct++;
      _VPP.log.push({trial:_VPP.trial,isFace:isFace,inverted:inverted,response:resp,correct:correct,rt:rt});
      var fb=$('vppFeedback');fb.textContent=correct?rt+'ms ✓':rt+'ms ✗';fb.className='feedback '+(correct?'ok':'err');
      document.removeEventListener('keydown',kh);
    };
    document.addEventListener('keydown',kh);
    // Blank the stimulus after 200 ms (brief presentation for the VPP), but KEEP
    // the response window open. Previously the keydown listener was removed only
    // 200 ms after the blank (~400 ms total), so responses made after the image
    // vanished never registered → every trial scored as a miss (0% accuracy).
    T(function(){
      ctx.clearRect(0,0,W,H);ctx.fillStyle='#060d14';ctx.fillRect(0,0,W,H);
    },200);
    // Response window: 1.2 s from onset. If no response by then, log a miss and
    // advance after the 1 s ISI.
    T(function(){
      document.removeEventListener('keydown',kh);
      if(!responded)_VPP.log.push({trial:_VPP.trial,isFace:isFace,inverted:inverted,response:null,correct:false,rt:null});
      T(next,1000);   // 1 s ISI before the next stimulus
    },1200);
  }
  T(next,700);
}
function vppExportCSV(){
  var log=window._vpp_log;if(!log)return;
  var blob=new Blob(['trial,is_face,inverted,response,correct,rt_ms\n'+log.map(function(r){return[r.trial,r.isFace?1:0,r.inverted?1:0,r.response!==null?r.response?1:0:'',r.correct?1:0,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='vpp_'+Date.now()+'.csv';a.click();
}
// ══ Pe ═══════════════════════════════════════════════════
var _PE=null;
var PE_FLANKERS=[
  {arr:['←','←','←','←','←'],dir:'left',congruent:true},
  {arr:['→','→','→','→','→'],dir:'right',congruent:true},
  {arr:['←','←','→','←','←'],dir:'right',congruent:false},
  {arr:['→','→','←','→','→'],dir:'left',congruent:false},
];
function startPE(isPractice){
  var N=taskTrials('PE',5,160,isPractice);
  _PE={active:true,isPractice:isPractice,trial:0,maxTrials:N,correct:0,errors:0,noticedErrors:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_PE._timers.push(t);return t;}
  _PE.T=T;_PE.clear=function(){_PE._timers.forEach(clearTimeout);_PE._timers=[];};
  hideAll();$('peScreen').style.display='flex';
  $('pePracticeBanner').style.display=isPractice?'block':'none';
  $('peProgressBar').style.width='0%';$('peStimPhase').style.display='flex';
  $('peResultsPhase').style.display='none';$('peFeedback').textContent='';$('peAwareness').style.display='none';
  $('si-task').textContent='Pe'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  function end(){
    _PE.clear();_PE.active=false;
    $('peStimPhase').style.display='none';$('peProgressBar').style.width='100%';
    if(isPractice){$('pcStats').innerHTML='ERR <span>'+_PE.errors+'</span> NOTICED <span>'+_PE.noticedErrors+'</span>';hideAll();$('practiceComplete').style.display='flex';return;}
    window._pe_log=_PE.log;$('exportBtn').disabled=false;
    var acc=(_PE.correct/_PE.trial*100).toFixed(0)+'%';
    var nRate=_PE.errors?(_PE.noticedErrors/_PE.errors*100).toFixed(0)+'%':'--';
    $('peMetrics').innerHTML=
      '<div class="vrt-metric"><div class="vm-val">'+acc+'</div><div class="vm-lbl">Accuracy</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+_PE.errors+'</div><div class="vm-lbl">Errors</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+nRate+'</div><div class="vm-lbl">Error Awareness</div></div>';
    $('peResultsPhase').style.display='block';updateSidebar();
  }
  function next(){
    if(!_PE.active)return;if(_PE.trial>=N){end();return;}
    _PE.trial++;
    $('peProgressBar').style.width=(_PE.trial/N*100).toFixed(1)+'%';
    $('pe-trial').textContent='Trial '+_PE.trial+'/'+N;
    $('pe-errors').textContent='Errors: '+_PE.errors;
    $('peFeedback').textContent='';$('peFeedback').className='feedback';$('peAwareness').style.display='none';
    $('peHint').textContent='F = LEFT arrow · J = RIGHT arrow · respond fast';
    var item=PE_FLANKERS[Math.floor(Math.random()*PE_FLANKERS.length)];
    $('peFlanker').textContent=item.arr.join(' ');
    triggerFlash();var onset=performance.now();var responded=false;
    var kh=function(e){
      if(!_PE.active)return;
      var resp=e.key==='f'||e.key==='F'?'left':e.key==='j'||e.key==='J'?'right':null;
      if(!resp)return;e.preventDefault();if(responded)return;responded=true;
      var rt=+(performance.now()-onset).toFixed(1);var correct=resp===item.dir;
      if(correct)_PE.correct++;else _PE.errors++;
      document.removeEventListener('keydown',kh);
      var fb=$('peFeedback');fb.textContent=correct?rt+'ms ✓':rt+'ms ✗ — made an error';fb.className='feedback '+(correct?'ok':'err');
      if(!correct){
        // Ask error awareness
        $('peAwareness').style.display='block';$('peHint').textContent='Y = noticed error · N = did not notice';
        var ak=function(e2){if(!_PE.active)return;var aw=e2.key==='y'||e2.key==='Y'?true:e2.key==='n'||e2.key==='N'?false:null;if(aw===null)return;e2.preventDefault();
          if(aw)_PE.noticedErrors++;
          _PE.log.push({trial:_PE.trial,dir:item.dir,congruent:item.congruent,response:resp,correct:correct,rt:rt,errorAware:aw});
          document.removeEventListener('keydown',ak);$('peAwareness').style.display='none';T(next,400);};
        document.addEventListener('keydown',ak);
      } else {
        _PE.log.push({trial:_PE.trial,dir:item.dir,congruent:item.congruent,response:resp,correct:correct,rt:rt,errorAware:null});
        T(next,350);
      }
    };
    document.addEventListener('keydown',kh);
    // Brief flanker; keep response window open ~1 s from onset.
    T(function(){ $('peFlanker').textContent=''; },200);
    T(function(){
      document.removeEventListener('keydown',kh);
      if(!responded){_PE.log.push({trial:_PE.trial,dir:item.dir,congruent:item.congruent,response:null,correct:false,rt:null,errorAware:null});}
      if(responded)return;T(next,300);
    },1000);
  }
  T(next,700);
}
function peExportCSV(){
  var log=window._pe_log;if(!log)return;
  var blob=new Blob(['trial,direction,congruent,response,correct,rt_ms,error_aware\n'+log.map(function(r){return[r.trial,r.dir,r.congruent?1:0,r.response||'',r.correct?1:0,r.rt!=null?r.rt:'',r.errorAware!==null?(r.errorAware?1:0):''].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='pe_'+Date.now()+'.csv';a.click();
}
// ══ ORN ══════════════════════════════════════════════════
var _ORN=null;
function startORN(isPractice){
  var N=taskTrials('ORN',5,80,isPractice);
  _ORN={active:true,isPractice:isPractice,trial:0,maxTrials:N,correct:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_ORN._timers.push(t);return t;}
  _ORN.T=T;_ORN.clear=function(){_ORN._timers.forEach(clearTimeout);_ORN._timers=[];};
  hideAll();$('ornScreen').style.display='flex';
  $('ornPracticeBanner').style.display=isPractice?'block':'none';
  $('ornProgressBar').style.width='0%';$('ornStimPhase').style.display='flex';
  $('ornResultsPhase').style.display='none';$('ornFeedback').textContent='';
  $('si-task').textContent='ORN'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  function playComplex(f1,f2,mistuned,dur){
    // R12: custom audio override
    if (typeof CustomAudio !== 'undefined' &&
        CustomAudio.tryPlay('orn-' + (mistuned ? 'deviant' : 'standard'), 0.36)) {
      return;
    }
    try{
      var ac=new (window.AudioContext||window.webkitAudioContext)();
      [f1,f2].forEach(function(f,i){
        var o=ac.createOscillator();var g=ac.createGain();o.connect(g);g.connect(ac.destination);
        o.type='sine';o.frequency.value=f+(mistuned&&i===1?f*0.04:0);
        g.gain.setValueAtTime(0,ac.currentTime);g.gain.linearRampToValueAtTime(0.18,ac.currentTime+0.015);
        g.gain.linearRampToValueAtTime(0,ac.currentTime+dur);
        o.start(ac.currentTime);o.stop(ac.currentTime+dur+0.05);
      });
    }catch(e){}
  }
  function end(){
    _ORN.clear();_ORN.active=false;
    $('ornStimPhase').style.display='none';$('ornProgressBar').style.width='100%';
    if(isPractice){$('pcStats').innerHTML='PRESENTED <span>'+_ORN.trial+'</span> stimuli';hideAll();$('practiceComplete').style.display='flex';return;}
    window._orn_log=_ORN.log;$('exportBtn').disabled=false;
    var mis=_ORN.log.filter(function(r){return r.mistuned;}).length;
    var fus=_ORN.log.filter(function(r){return !r.mistuned;}).length;
    $('ornMetrics').innerHTML=
      '<div class="vrt-metric"><div class="vm-val">'+_ORN.trial+'</div><div class="vm-lbl">Stimuli Presented</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+mis+'</div><div class="vm-lbl">Deviant (mistuned)</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+fus+'</div><div class="vm-lbl">Standard (fused)</div></div>';
    $('ornResultsPhase').style.display='block';updateSidebar();
  }
  // PASSIVE paradigm: stimuli auto-advance on a fixed SOA, no response required
  // (ORN arises automatically from auditory object processing; the component is
  // captured by the EEG, not by a button press). See the intro: "no active task".
  function next(){
    if(!_ORN.active)return;if(_ORN.trial>=N){end();return;}
    _ORN.trial++;
    $('ornProgressBar').style.width=(_ORN.trial/N*100).toFixed(1)+'%';
    $('orn-trial').textContent='Stimulus '+_ORN.trial+'/'+N;
    $('orn-acc').textContent='passive — just listen';
    $('ornFeedback').textContent='';$('ornFeedback').className='feedback';
    var mistuned=Math.random()<0.5;
    var f1=440,f2=660;
    var vz=$('ornViz');vz.innerHTML='';
    var b1=document.createElement('div');b1.style.cssText='width:44px;height:44px;border-radius:50%;border:2px solid rgba(212,180,86,0.5);background:#0a1620;display:flex;align-items:center;justify-content:center;font-size:0.9rem;color:var(--gold);font-family:"Source Code Pro",monospace;';b1.textContent='440';
    var sep=document.createElement('span');sep.style.cssText='color:var(--dim);font-size:1.2rem;';sep.textContent=mistuned?'↔':'·';
    var b2=document.createElement('div');b2.style.cssText=b1.style.cssText;b2.textContent=mistuned?'687':'660';b2.style.borderColor=mistuned?'rgba(224,92,92,0.4)':'rgba(212,180,86,0.5)';
    vz.appendChild(b1);vz.appendChild(sep);vz.appendChild(b2);
    playComplex(f1,f2,mistuned,0.3);
    triggerFlash();
    _ORN.log.push({trial:_ORN.trial,mistuned:mistuned});
    // Auto-advance: stimulus duration (~300ms) + inter-stimulus interval.
    T(next,900);
  }
  T(next,700);
}
function ornExportCSV(){
  var log=window._orn_log;if(!log)return;
  var blob=new Blob(['stimulus,mistuned\n'+log.map(function(r){return[r.trial,r.mistuned?1:0].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='orn_'+Date.now()+'.csv';a.click();
}
// ══ MFN — Stroop-like colour-word ════════════════════════
var _MFN=null;
var MFN_ITEMS=[
  {word:'RED',ink:'red',congruent:true},
  {word:'BLUE',ink:'blue',congruent:true},
  {word:'RED',ink:'blue',congruent:false},
  {word:'BLUE',ink:'red',congruent:false},
  {word:'GREEN',ink:'red',congruent:false},
  {word:'GREEN',ink:'blue',congruent:false},
  {word:'YELLOW',ink:'red',congruent:false},
  {word:'YELLOW',ink:'blue',congruent:false},
];
var MFN_INK_STYLES={red:'#e05c5c',blue:'#5b9fda'};
function startMFN(isPractice){
  var N=taskTrials('MFN',5,160,isPractice);var items=[];
  while(items.length<N)items=items.concat(MFN_ITEMS.slice().sort(function(){return Math.random()-0.5;}));
  items=items.slice(0,N);
  _MFN={active:true,isPractice:isPractice,items:items,idx:0,correct:0,log:[],_timers:[]};
  function T(fn,ms){var t=setTimeout(fn,ms);_MFN._timers.push(t);return t;}
  _MFN.T=T;_MFN.clear=function(){_MFN._timers.forEach(clearTimeout);_MFN._timers=[];};
  hideAll();$('mfnScreen').style.display='flex';
  $('mfnPracticeBanner').style.display=isPractice?'block':'none';
  $('mfnProgressBar').style.width='0%';$('mfnStimPhase').style.display='flex';
  $('mfnResultsPhase').style.display='none';$('mfnFeedback').textContent='';
  $('si-task').textContent='MFN'+(isPractice?' (PRAC)':'');$('exportBtn').disabled=true;
  function end(){
    _MFN.clear();_MFN.active=false;$('mfnStimPhase').style.display='none';$('mfnProgressBar').style.width='100%';
    if(isPractice){$('pcStats').innerHTML='ACC <span>'+(_MFN.correct/_MFN.idx*100).toFixed(0)+'%</span>';hideAll();$('practiceComplete').style.display='flex';return;}
    window._mfn_log=_MFN.log;$('exportBtn').disabled=false;
    var con=_MFN.log.filter(function(r){return r.congruent;});var inc=_MFN.log.filter(function(r){return !r.congruent;});
    var cRT=con.filter(function(r){return r.rt&&r.correct;});var iRT=inc.filter(function(r){return r.rt&&r.correct;});
    var cMRT=cRT.length?(cRT.reduce(function(a,b){return a+b.rt;},0)/cRT.length).toFixed(0):'--';
    var iMRT=iRT.length?(iRT.reduce(function(a,b){return a+b.rt;},0)/iRT.length).toFixed(0):'--';
    var cAcc=con.length?(con.filter(function(r){return r.correct;}).length/con.length*100).toFixed(0)+'%':'--';
    var iAcc=inc.length?(inc.filter(function(r){return r.correct;}).length/inc.length*100).toFixed(0)+'%':'--';
    $('mfnMetrics').innerHTML=
      '<div class="vrt-metric"><div class="vm-val">'+cMRT+'ms</div><div class="vm-lbl">Congruent RT</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+iMRT+'ms</div><div class="vm-lbl">Incongruent RT</div></div>'+
      '<div class="vrt-metric"><div class="vm-val">'+iAcc+'</div><div class="vm-lbl">Incongruent Acc.</div></div>';
    $('mfnResultsPhase').style.display='block';updateSidebar();
  }
  function next(){
    if(!_MFN.active)return;if(_MFN.idx>=_MFN.items.length){end();return;}
    var item=_MFN.items[_MFN.idx];
    $('mfn-trial').textContent=(_MFN.idx+1)+'/'+_MFN.items.length;
    $('mfnProgressBar').style.width=(_MFN.idx/_MFN.items.length*100).toFixed(1)+'%';
    $('mfn-acc').textContent='Acc: '+(_MFN.idx?(_MFN.correct/_MFN.idx*100).toFixed(0)+'%':'--');
    $('mfnFeedback').textContent='';$('mfnFeedback').className='feedback';
    var el=$('mfnWord');el.textContent=item.word;el.style.color=MFN_INK_STYLES[item.ink];
    triggerFlash();var onset=performance.now();var responded=false;
    var kh=function(e){
      if(!_MFN.active)return;
      var resp=e.key==='f'||e.key==='F'?'red':e.key==='j'||e.key==='J'?'blue':null;
      if(!resp)return;e.preventDefault();if(responded)return;responded=true;
      var rt=+(performance.now()-onset).toFixed(1);var correct=resp===item.ink;if(correct)_MFN.correct++;
      _MFN.log.push({trial:_MFN.idx+1,word:item.word,ink:item.ink,congruent:item.congruent,response:resp,correct:correct,rt:rt});
      var fb=$('mfnFeedback');fb.textContent=correct?rt+'ms ✓':rt+'ms ✗';fb.className='feedback '+(correct?'ok':'err');
      document.removeEventListener('keydown',kh);_MFN.idx++;T(next,350);
    };
    document.addEventListener('keydown',kh);
    // Brief stimulus; keep response window open ~1 s from onset.
    T(function(){ el.textContent=''; },200);
    T(function(){
      document.removeEventListener('keydown',kh);
      if(!responded){_MFN.log.push({trial:_MFN.idx+1,word:item.word,ink:item.ink,congruent:item.congruent,response:null,correct:false,rt:null});_MFN.idx++;}
      T(next,300);
    },1000);
  }
  T(next,700);
}
function mfnExportCSV(){
  var log=window._mfn_log;if(!log)return;
  var blob=new Blob(['trial,word,ink,congruent,response,correct,rt_ms\n'+log.map(function(r){return[r.trial,r.word,r.ink,r.congruent?1:0,r.response||'',r.correct?1:0,r.rt!=null?r.rt:''].join(',');}).join('\n')],{type:'text/csv'});
  var a=document.createElement('a');a.href=URL.createObjectURL(blob);a.download='mfn_'+Date.now()+'.csv';a.click();
}</script>

<!-- ═══════ NEW TASK SCREENS ═══════ -->
<div id="p50Screen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="p50PracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">P50 SENSORY GATING</span>
    <span id="p50-trial">—</span><span id="p50-phase" style="font-size:0.75rem;letter-spacing:0.18em;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="p50ProgressBar" style="width:0%"></div></div>
  <div id="p50StimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div id="p50Circle" style="width:100px;height:100px;border-radius:50%;border:2px solid #1a2f44;background:#0a1620;display:flex;align-items:center;justify-content:center;font-size:2rem;color:var(--mid);">+</div>
    <div id="p50Label" style="font-size:0.8rem;color:var(--dim);letter-spacing:0.12em;min-height:1.2rem;text-align:center;"></div>
    <div style="font-size:0.78rem;color:var(--dim);">Passive listening — no response required</div>
  </div>
  <div id="p50ResultsPhase" style="display:none;"><div class="vrt-results-wrap"><div class="vrt-results-title">P50 RESULTS</div><div class="vrt-metrics" id="p50Metrics"></div><div style="display:flex;gap:12px;margin-top:10px;"><button class="intro-btn primary" onclick="resetAll()">↩ HOME</button><button class="intro-btn" onclick="p50ExportCSV()">⬇ EXPORT CSV</button></div></div></div>
</div>

<div id="n100Screen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="n100PracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">AUDITORY N100 / P200</span>
    <span id="n100-trial">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="n100ProgressBar" style="width:0%"></div></div>
  <div id="n100StimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div id="n100Circle" style="width:100px;height:100px;border-radius:50%;border:2px solid #1a2f44;background:#0a1620;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:var(--mid);">+</div>
    <div id="n100Label" style="font-size:0.8rem;color:var(--dim);letter-spacing:0.12em;min-height:1.2rem;"></div>
    <div style="font-size:0.78rem;color:var(--dim);">Passive listening — no response required</div>
  </div>
  <div id="n100ResultsPhase" style="display:none;"><div class="vrt-results-wrap"><div class="vrt-results-title">N100 RESULTS</div><div class="vrt-metrics" id="n100Metrics"></div><div style="display:flex;gap:12px;margin-top:10px;"><button class="intro-btn primary" onclick="resetAll()">↩ HOME</button><button class="intro-btn" onclick="n100ExportCSV()">⬇ EXPORT CSV</button></div></div></div>
</div>


<div id="p100Screen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="p100PracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">P100 FLASHED VEP</span>
    <span id="p100-trial">—</span>
    <span id="p100-catch" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="p100ProgressBar" style="width:0%"></div></div>
  <div id="p100StimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <canvas id="p100Cvs" width="320" height="320" style="border:1px solid #1a2f44;background:#000;"></canvas>
    <div class="feedback" id="p100Feedback"></div>
    <div class="key-hint">SPACE = report a DIM flash (catch trial) · most flashes are bright, just fixate</div>
  </div>
  <div id="p100ResultsPhase" style="display:none;"><div class="vrt-results-wrap"><div class="vrt-results-title">P100 RESULTS</div><div class="vrt-metrics" id="p100Metrics"></div><div style="display:flex;gap:12px;margin-top:10px;"><button class="intro-btn primary" onclick="resetAll()">↩ HOME</button><button class="intro-btn" onclick="p100ExportCSV()">⬇ EXPORT CSV</button></div></div></div>
</div>

<div id="scpScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="scpPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">SLOW CORTICAL POTENTIALS</span>
    <span id="scp-trial">—</span><span id="scp-phase" style="font-size:0.75rem;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="scpProgressBar" style="width:0%"></div></div>
  <div id="scpStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div id="scpBar" style="width:300px;height:24px;border:1px solid #1a2f44;background:#0a1620;position:relative;"><div id="scpBarFill" style="height:100%;background:var(--gold);width:0%;transition:width 0.1s;"></div></div>
    <div id="scpCue" style="font-size:2rem;color:var(--mid);min-height:3rem;"></div>
    <div class="key-hint">Sustain attention during the cue bar — no key press</div>
  </div>
  <div id="scpResultsPhase" style="display:none;"><div class="vrt-results-wrap"><div class="vrt-results-title">SCP RESULTS</div><div class="vrt-metrics" id="scpMetrics"></div><div style="display:flex;gap:12px;margin-top:10px;"><button class="intro-btn primary" onclick="resetAll()">↩ HOME</button><button class="intro-btn" onclick="scpExportCSV()">⬇ EXPORT CSV</button></div></div></div>
</div>

<div id="p3aScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="p3aPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">P3a NOVELTY ODDBALL</span>
    <span id="p3a-trial">—</span><span id="p3a-phase" style="font-size:0.75rem;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="p3aProgressBar" style="width:0%"></div></div>
  <div id="p3aStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div id="p3aCircle" style="width:100px;height:100px;border-radius:50%;border:2px solid #1a2f44;background:#0a1620;display:flex;align-items:center;justify-content:center;font-size:2rem;color:var(--mid);">+</div>
    <div id="p3aLabel" style="font-size:1rem;color:var(--gold2);font-family:'EB Garamond',serif;letter-spacing:0.1em;min-height:2rem;text-align:center;"></div>
    <div class="feedback" id="p3aFeedback"></div>
    <div class="key-hint">F = TARGET tone only · ignore standards and novels</div>
  </div>
  <div id="p3aResultsPhase" style="display:none;"><div class="vrt-results-wrap"><div class="vrt-results-title">P3a RESULTS</div><div class="vrt-metrics" id="p3aMetrics"></div><div style="display:flex;gap:12px;margin-top:10px;"><button class="intro-btn primary" onclick="resetAll()">↩ HOME</button><button class="intro-btn" onclick="p3aExportCSV()">⬇ EXPORT CSV</button></div></div></div>
</div>

<div id="assrScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="assrPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">ASSR 40Hz</span>
    <span id="assr-trial">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="assrProgressBar" style="width:0%"></div></div>
  <div id="assrStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div id="assrCircle" style="width:100px;height:100px;border-radius:50%;border:2px solid #1a2f44;background:#0a1620;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:var(--mid);">+</div>
    <div id="assrLabel" style="font-size:0.85rem;color:var(--dim);letter-spacing:0.1em;min-height:1.5rem;text-align:center;"></div>
    <div style="font-size:0.78rem;color:var(--dim);">Passive listening — no response required · use headphones</div>
  </div>
  <div id="assrResultsPhase" style="display:none;"><div class="vrt-results-wrap"><div class="vrt-results-title">ASSR RESULTS</div><div class="vrt-metrics" id="assrMetrics"></div><div style="display:flex;gap:12px;margin-top:10px;"><button class="intro-btn primary" onclick="resetAll()">↩ HOME</button><button class="intro-btn" onclick="assrExportCSV()">⬇ EXPORT CSV</button></div></div></div>
</div>

<div id="cptScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="cptPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">CPT-AX</span>
    <span id="cpt-trial">—</span><span id="cpt-phase" style="font-size:0.75rem;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="cptProgressBar" style="width:0%"></div></div>
  <div id="cptStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div id="cptStim" style="font-size:5rem;font-family:monospace;color:var(--mid);width:120px;height:120px;display:flex;align-items:center;justify-content:center;border:2px solid #1a2f44;"></div>
    <div class="feedback" id="cptFeedback"></div>
    <div class="key-hint">SPACE = respond only when X follows A</div>
  </div>
  <div id="cptResultsPhase" style="display:none;"><div class="vrt-results-wrap"><div class="vrt-results-title">CPT RESULTS</div><div class="vrt-metrics" id="cptMetrics"></div><div style="display:flex;gap:12px;margin-top:10px;"><button class="intro-btn primary" onclick="resetAll()">↩ HOME</button><button class="intro-btn" onclick="cptExportCSV()">⬇ EXPORT CSV</button></div></div></div>
</div>

<div id="emotstroopScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="emotstroopPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">EMOTIONAL STROOP</span>
    <span id="emotstroop-trial">—</span><span id="emotstroop-phase" style="font-size:0.75rem;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="emotstroopProgressBar" style="width:0%"></div></div>
  <div id="emotstroopStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div id="emotstroopWord" style="font-size:2.8rem;font-family:'EB Garamond',serif;min-height:4rem;text-align:center;letter-spacing:0.04em;"></div>
    <div class="feedback" id="emotstroopFeedback"></div>
    <div class="key-hint">F = RED ink · J = BLUE ink — ignore word meaning</div>
  </div>
  <div id="emotstroopResultsPhase" style="display:none;"><div class="vrt-results-wrap"><div class="vrt-results-title">EMOTIONAL STROOP RESULTS</div><div class="vrt-metrics" id="emotstroopMetrics"></div><div style="display:flex;gap:12px;margin-top:10px;"><button class="intro-btn primary" onclick="resetAll()">↩ HOME</button><button class="intro-btn" onclick="emotstroopExportCSV()">⬇ EXPORT CSV</button></div></div></div>
</div>

<div id="taskswitchScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="taskswitchPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">TASK SWITCHING</span>
    <span id="taskswitch-trial">—</span><span id="taskswitch-phase" style="font-size:0.75rem;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="taskswitchProgressBar" style="width:0%"></div></div>
  <div id="taskswitchStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div id="taskswitchCue" style="font-size:0.75rem;font-family:'Source Code Pro',monospace;letter-spacing:0.2em;color:var(--gold);min-height:1.5rem;text-align:center;"></div>
    <div id="taskswitchStim" style="font-size:4rem;font-family:monospace;color:var(--mid);width:120px;height:120px;display:flex;align-items:center;justify-content:center;border:2px solid #1a2f44;"></div>
    <div class="feedback" id="taskswitchFeedback"></div>
    <div class="key-hint">F = first option · J = second option (see cue)</div>
  </div>
  <div id="taskswitchResultsPhase" style="display:none;"><div class="vrt-results-wrap"><div class="vrt-results-title">TASK SWITCH RESULTS</div><div class="vrt-metrics" id="taskswitchMetrics"></div><div style="display:flex;gap:12px;margin-top:10px;"><button class="intro-btn primary" onclick="resetAll()">↩ HOME</button><button class="intro-btn" onclick="taskswitchExportCSV()">⬇ EXPORT CSV</button></div></div></div>
</div>

<div id="dualtaskScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="dualtaskPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">DUAL TASK</span>
    <span id="dualtask-trial">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="dualtaskProgressBar" style="width:0%"></div></div>
  <div id="dualtaskStimPhase" style="display:none;flex-direction:column;align-items:center;gap:10px;">
    <div style="display:flex;gap:20px;align-items:center;">
      <div style="display:flex;flex-direction:column;align-items:center;gap:4px;">
        <div style="font-size:0.7rem;color:var(--dim);letter-spacing:0.1em;">TASK 1 — LETTER</div>
        <div id="dualtaskLetter" style="font-size:3.5rem;font-family:monospace;color:var(--mid);width:80px;height:80px;display:flex;align-items:center;justify-content:center;border:1px solid #1a2f44;"></div>
      </div>
      <div style="display:flex;flex-direction:column;align-items:center;gap:4px;">
        <div style="font-size:0.7rem;color:var(--dim);letter-spacing:0.1em;">TASK 2 — DOT</div>
        <canvas id="dualtaskCvs" width="120" height="80" style="border:1px solid #1a2f44;background:#060d14;"></canvas>
      </div>
    </div>
    <div class="feedback" id="dualtaskFeedback"></div>
    <div class="key-hint">F = letter target · J = dot in zone</div>
  </div>
  <div id="dualtaskResultsPhase" style="display:none;"><div class="vrt-results-wrap"><div class="vrt-results-title">DUAL TASK RESULTS</div><div class="vrt-metrics" id="dualtaskMetrics"></div><div style="display:flex;gap:12px;margin-top:10px;"><button class="intro-btn primary" onclick="resetAll()">↩ HOME</button><button class="intro-btn" onclick="dualtaskExportCSV()">⬇ EXPORT CSV</button></div></div></div>
</div>

<div id="attblinkScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="attblinkPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">ATTENTIONAL BLINK</span>
    <span id="attblink-trial">—</span><span id="attblink-phase" style="font-size:0.75rem;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="attblinkProgressBar" style="width:0%"></div></div>
  <div id="attblinkStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div id="attblinkStim" style="font-size:4.5rem;font-family:monospace;color:var(--mid);width:120px;height:120px;display:flex;align-items:center;justify-content:center;"></div>
    <div class="feedback" id="attblinkFeedback"></div>
    <div class="key-hint">SPACE = press for colored (target) letters</div>
  </div>
  <div id="attblinkResultsPhase" style="display:none;"><div class="vrt-results-wrap"><div class="vrt-results-title">ATTENTIONAL BLINK RESULTS</div><div class="vrt-metrics" id="attblinkMetrics"></div><div style="display:flex;gap:12px;margin-top:10px;"><button class="intro-btn primary" onclick="resetAll()">↩ HOME</button><button class="intro-btn" onclick="attblinkExportCSV()">⬇ EXPORT CSV</button></div></div></div>
</div>

<div id="subitizeScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="subitizePracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">SUBITIZING</span>
    <span id="subitize-trial">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="subitizeProgressBar" style="width:0%"></div></div>
  <div id="subitizeStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <canvas id="subitizeCvs" width="280" height="160" style="border:1px solid #1a2f44;background:#060d14;"></canvas>
    <div class="feedback" id="subitizeFeedback"></div>
    <div class="key-hint">1–9 keys = number of dots you see</div>
  </div>
  <div id="subitizeResultsPhase" style="display:none;"><div class="vrt-results-wrap"><div class="vrt-results-title">SUBITIZING RESULTS</div><div class="vrt-metrics" id="subitizeMetrics"></div><div style="display:flex;gap:12px;margin-top:10px;"><button class="intro-btn primary" onclick="resetAll()">↩ HOME</button><button class="intro-btn" onclick="subitizeExportCSV()">⬇ EXPORT CSV</button></div></div></div>
</div>

<div id="lexdecScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="lexdecPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">LEXICAL DECISION</span>
    <span id="lexdec-trial">—</span><span id="lexdec-phase" style="font-size:0.75rem;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="lexdecProgressBar" style="width:0%"></div></div>
  <div id="lexdecStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div id="lexdecWord" style="font-size:2.8rem;font-family:'EB Garamond',serif;color:var(--text);min-height:4rem;letter-spacing:0.05em;text-align:center;display:flex;align-items:center;justify-content:center;"></div>
    <div class="feedback" id="lexdecFeedback"></div>
    <div class="key-hint">F = WORD · J = NON-WORD</div>
  </div>
  <div id="lexdecResultsPhase" style="display:none;"><div class="vrt-results-wrap"><div class="vrt-results-title">LEXICAL DECISION RESULTS</div><div class="vrt-metrics" id="lexdecMetrics"></div><div style="display:flex;gap:12px;margin-top:10px;"><button class="intro-btn primary" onclick="resetAll()">↩ HOME</button><button class="intro-btn" onclick="lexdecExportCSV()">⬇ EXPORT CSV</button></div></div></div>
</div>

<div id="semfluencyScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="semfluencyPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">SEMANTIC FLUENCY</span>
    <span id="semfluency-trial">—</span><span id="semfluency-time" style="font-size:0.9rem;color:var(--gold);font-family:'Source Code Pro',monospace;">60s</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="semfluencyProgressBar" style="width:0%"></div></div>
  <div id="semfluencyStimPhase" style="display:none;flex-direction:column;align-items:center;gap:10px;">
    <div id="semfluencyCategory" style="font-size:1.2rem;color:var(--gold);font-family:'EB Garamond',serif;letter-spacing:0.1em;"></div>
    <div style="display:flex;gap:8px;align-items:center;">
      <input id="semfluencyInput" type="text" placeholder="type a word + ENTER" autocomplete="off" style="background:#0a1620;border:1px solid #2a4060;color:var(--text);font-family:'EB Garamond',serif;font-size:1.2rem;padding:6px 12px;width:220px;border-radius:2px;">
    </div>
    <div id="semfluencyList" style="display:flex;flex-wrap:wrap;gap:6px;max-width:460px;min-height:60px;"></div>
  </div>
  <div id="semfluencyResultsPhase" style="display:none;"><div class="vrt-results-wrap"><div class="vrt-results-title">SEMANTIC FLUENCY RESULTS</div><div class="vrt-metrics" id="semfluencyMetrics"></div><div style="display:flex;gap:12px;margin-top:10px;"><button class="intro-btn primary" onclick="resetAll()">↩ HOME</button><button class="intro-btn" onclick="semfluencyExportCSV()">⬇ EXPORT CSV</button></div></div></div>
</div>

<div id="prosmemScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="prosmemPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">PROSPECTIVE MEMORY</span>
    <span id="prosmem-trial">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="prosmemProgressBar" style="width:0%"></div></div>
  <div id="prosmemStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div id="prosmemTarget" style="font-size:0.72rem;font-family:'Source Code Pro',monospace;color:var(--dim);letter-spacing:0.15em;">REMEMBER: press SPACE when you see: <span id="prosmemTargetWord" style="color:var(--gold);"></span></div>
    <div id="prosmemWord" style="font-size:2.8rem;font-family:'EB Garamond',serif;color:var(--text);min-height:4rem;text-align:center;display:flex;align-items:center;justify-content:center;"></div>
    <div class="feedback" id="prosmemFeedback"></div>
    <div class="key-hint">F = vowel · J = consonant · SPACE = PM target</div>
  </div>
  <div id="prosmemResultsPhase" style="display:none;"><div class="vrt-results-wrap"><div class="vrt-results-title">PROSPECTIVE MEMORY RESULTS</div><div class="vrt-metrics" id="prosmemMetrics"></div><div style="display:flex;gap:12px;margin-top:10px;"><button class="intro-btn primary" onclick="resetAll()">↩ HOME</button><button class="intro-btn" onclick="prosmemExportCSV()">⬇ EXPORT CSV</button></div></div></div>
</div>

<div id="spatwmScreen" class="task-screen" style="display:none;">
  <div class="practice-banner" id="spatwmPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;font-size:0.88rem;color:var(--dim);">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">SPATIAL WORKING MEMORY</span>
    <span id="spatwm-trial">—</span><span id="spatwm-phase" style="font-size:0.75rem;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="spatwmProgressBar" style="width:0%"></div></div>
  <div id="spatwmStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <canvas id="spatwmCvs" width="280" height="280" style="border:1px solid #1a2f44;background:#060d14;cursor:default;"></canvas>
    <div id="spatwmInstruct" style="font-size:0.8rem;color:var(--dim);letter-spacing:0.1em;text-align:center;"></div>
    <div class="feedback" id="spatwmFeedback"></div>
  </div>
  <div id="spatwmResultsPhase" style="display:none;"><div class="vrt-results-wrap"><div class="vrt-results-title">SPATIAL WM RESULTS</div><div class="vrt-metrics" id="spatwmMetrics"></div><div style="display:flex;gap:12px;margin-top:10px;"><button class="intro-btn primary" onclick="resetAll()">↩ HOME</button><button class="intro-btn" onclick="spatwmExportCSV()">⬇ EXPORT CSV</button></div></div></div>
</div>


<div id="mocaScreen" class="task-screen" style="display:none;">
  <div id="mocaPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;flex-wrap:wrap;margin-bottom:12px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">MONTREAL COGNITIVE ASSESSMENT</span>
    <span style="font-size:0.78rem;color:var(--dim);letter-spacing:0.1em;">Score each domain below · check each correct item</span>
  </div>
  <div style="display:flex;gap:18px;align-items:center;margin-bottom:14px;">
    <div style="font-size:0.85rem;color:var(--dim);">Total Score:</div>
    <div id="mocaTotalScore" style="font-size:2.2rem;font-family:'Source Code Pro',monospace;color:var(--gold);line-height:1;">—</div>
    <div style="font-size:0.78rem;color:var(--dim);">/ 30</div>
    <div id="mocaInterp" style="font-size:0.82rem;color:var(--dim);letter-spacing:0.05em;"></div>
  </div>
  <div id="mocaFormPhase" style="width:100%;max-width:620px;overflow-y:auto;max-height:calc(100vh - 240px);">
    <div id="mocaItems"></div>
    <div style="display:flex;gap:12px;margin-top:8px;padding-bottom:20px;">
      <button class="intro-btn primary" onclick="mocaFinish()">✓ FINISH &amp; SCORE</button>
      <button class="intro-btn" onclick="resetAll()">↩ HOME</button>
    </div>
  </div>
  <div id="mocaResultsPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">MoCA RESULTS</div>
      <div style="display:flex;gap:20px;align-items:baseline;margin:12px 0;">
        <div id="mocaFinalScore" style="font-size:3rem;font-family:'Source Code Pro',monospace;color:var(--gold);"></div>
        <div id="mocaFinalInterp" style="font-size:0.9rem;color:var(--mid);font-family:'EB Garamond',serif;font-style:italic;max-width:280px;line-height:1.6;"></div>
      </div>
      <div style="font-size:0.78rem;color:var(--dim);line-height:1.7;max-width:500px;">
        Cut-off: ≥26 normal · 18–25 mild impairment · 10–17 moderate · &lt;10 severe.<br>
        +1 point applied for ≤12 years education.<br>
        <em>This is a screening tool — not diagnostic. Refer to a clinician for interpretation.</em>
      </div>
      <div style="display:flex;gap:12px;margin-top:12px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="mocaExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<div id="digcanScreen" class="task-screen" style="display:none;">
  <div id="digcanPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">DIGIT CANCELLATION</span>
    <span id="digcan-target" style="font-size:1rem;font-family:'Source Code Pro',monospace;color:var(--gold);letter-spacing:0.2em;"></span>
    <span id="digcan-trial" style="font-size:0.82rem;color:var(--dim);">—</span>
    <span id="digcan-time" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);">60s</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="digcanProgressBar" style="width:0%"></div></div>
  <div id="digcanStimPhase" style="display:none;flex-direction:column;align-items:center;gap:10px;">
    <div id="digcanGrid" style="display:grid;grid-template-columns:repeat(20,28px);gap:3px;user-select:none;"></div>
    <div style="font-size:0.78rem;color:var(--dim);">Click every target digit — ignore all others</div>
  </div>
  <div id="digcanResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">DIGIT CANCELLATION RESULTS</div>
      <div class="vrt-metrics" id="digcanMetrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="digcanExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<div id="abrScreen" class="task-screen" style="display:none;">
  <div id="abrPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">AUDITORY BRAINSTEM RESPONSE</span>
    <span id="abr-trial" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">—</span>
    <span id="abr-phase" style="font-size:0.75rem;color:var(--dim);letter-spacing:0.15em;">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="abrProgressBar" style="width:0%"></div></div>
  <div id="abrStimPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;">
    <div id="abrFixation" style="font-size:2.5rem;color:var(--mid);">+</div>
    <div id="abrWaveInfo" style="font-size:0.8rem;color:var(--dim);letter-spacing:0.1em;min-height:1.2rem;text-align:center;"></div>
    <div style="font-size:0.78rem;color:var(--dim);">Passive recording — relax and keep still · use headphones</div>
  </div>
  <div id="abrResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">ABR RESULTS</div>
      <div class="vrt-metrics" id="abrMetrics"></div>
      <div style="font-size:0.78rem;color:var(--dim);margin-top:8px;line-height:1.7;max-width:460px;">
        Wave V latency and I–V IPL are simulated based on normative values.<br>
        A clinical ABR requires amplified EEG recording hardware (e.g. Natus, Bio-logic).
      </div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="abrExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<div id="symsearchScreen" class="task-screen" style="display:none;">
  <div id="symsearchPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">SYMBOL SEARCH</span>
    <span id="symsearch-trial" style="font-size:0.82rem;color:var(--dim);">—</span>
    <span id="symsearch-time" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);">120s</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="symsearchProgressBar" style="width:0%"></div></div>
  <div id="symsearchStimPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;">
    <div style="display:flex;align-items:center;gap:24px;">
      <!-- Targets -->
      <div style="display:flex;flex-direction:column;align-items:center;gap:6px;">
        <div style="font-size:0.65rem;color:var(--dim);letter-spacing:0.12em;">TARGETS</div>
        <div style="display:flex;gap:8px;" id="symsearchTargets"></div>
      </div>
      <div style="font-size:1.5rem;color:var(--dim);">|</div>
      <!-- Search array -->
      <div style="display:flex;flex-direction:column;align-items:center;gap:6px;">
        <div style="font-size:0.65rem;color:var(--dim);letter-spacing:0.12em;">SEARCH</div>
        <div style="display:flex;gap:8px;" id="symsearchArray"></div>
      </div>
    </div>
    <div class="feedback" id="symsearchFeedback"></div>
    <div class="key-hint">F = YES (target present) · J = NO (target absent)</div>
  </div>
  <div id="symsearchResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">SYMBOL SEARCH RESULTS</div>
      <div class="vrt-metrics" id="symsearchMetrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="symsearchExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<div id="dscScreen" class="task-screen" style="display:none;">
  <div id="dscPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">DIGIT SYMBOL CODING</span>
    <span id="dsc-trial" style="font-size:0.82rem;color:var(--dim);">—</span>
    <span id="dsc-time" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);">90s</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="dscProgressBar" style="width:0%"></div></div>
  <div id="dscStimPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <div style="font-size:0.65rem;color:var(--dim);letter-spacing:0.12em;">KEY</div>
    <div id="dscKey" style="display:flex;gap:6px;flex-wrap:wrap;justify-content:center;"></div>
    <div style="font-size:0.7rem;color:var(--dim);letter-spacing:0.12em;margin-top:6px;">ENTER THE SYMBOL FOR THIS DIGIT</div>
    <div id="dscCurrentDigit" style="font-size:3rem;font-family:'Source Code Pro',monospace;color:#f5f0e8;line-height:1;"></div>
    <div id="dscPalette" style="display:flex;gap:8px;flex-wrap:wrap;justify-content:center;"></div>
    <div class="feedback" id="dscFeedback"></div>
    <div class="key-hint">Click the matching symbol, or press the digit key (1–9) it pairs with</div>
  </div>
  <div id="dscResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">DIGIT SYMBOL RESULTS</div>
      <div class="vrt-metrics" id="dscMetrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="dscExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<div id="phonflueScreen" class="task-screen" style="display:none;">
  <div id="phonflueanceBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">PHONEMIC FLUENCY (FAS)</span>
    <span id="phonflue-letter" style="font-size:2rem;font-family:'Source Code Pro',monospace;color:var(--gold);letter-spacing:0.3em;min-width:2rem;text-align:center;">F</span>
    <span id="phonflue-time" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);">60s</span>
    <span id="phonflue-count" style="font-size:0.82rem;color:var(--dim);">0 words</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="phonflueProgressBar" style="width:0%"></div></div>
  <div id="phonflueStimPhase" style="display:none;flex-direction:column;align-items:center;gap:12px;width:100%;max-width:500px;">
    <div id="phonflueInstruct" style="font-size:0.82rem;color:var(--dim);letter-spacing:0.08em;text-align:center;"></div>
    <div style="display:flex;gap:8px;align-items:center;width:100%;">
      <input id="phonflueInput" type="text" autocomplete="off" autocorrect="off" spellcheck="false"
        placeholder="type a word + Enter"
        style="flex:1;background:#0a1620;border:1px solid #2a4060;color:var(--text);
               font-family:'EB Garamond',serif;font-size:1.3rem;padding:8px 14px;border-radius:2px;">
    </div>
    <div id="phonflueWordList" style="display:flex;flex-wrap:wrap;gap:6px;width:100%;min-height:48px;"></div>
    <div id="phonflueInvalid" style="font-size:0.78rem;color:#e05c5c;min-height:1rem;"></div>
  </div>
  <div id="phonflueResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">PHONEMIC FLUENCY RESULTS</div>
      <div class="vrt-metrics" id="phonflueMetrics"></div>
      <div id="phonflueWordSummary" style="margin-top:10px;font-size:0.8rem;color:var(--dim);line-height:1.8;"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="phonflueExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<div id="jloScreen" class="task-screen" style="display:none;">
  <div id="jloPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">JUDGMENT OF LINE ORIENTATION</span>
    <span id="jlo-trial" style="font-size:0.82rem;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="jloProgressBar" style="width:0%"></div></div>
  <div id="jloStimPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <!-- Stimulus: two target lines -->
    <div style="font-size:0.72rem;color:var(--dim);letter-spacing:0.12em;">MATCH THESE TWO LINES</div>
    <canvas id="jloStimCanvas" width="200" height="120"
      style="border:1px solid #1a2f44;background:#060d14;border-radius:2px;"></canvas>
    <!-- Reference fan -->
    <div style="font-size:0.72rem;color:var(--dim);letter-spacing:0.12em;">CLICK THE TWO MATCHING LINES IN THE FAN</div>
    <canvas id="jloFanCanvas" width="320" height="200"
      style="border:1px solid #1a2f44;background:#060d14;border-radius:2px;cursor:pointer;"></canvas>
    <div id="jloSelected" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);min-height:1.2rem;letter-spacing:0.1em;"></div>
    <div class="feedback" id="jloFeedback"></div>
    <button id="jloConfirmBtn" class="intro-btn primary" style="display:none;" onclick="jloConfirm()">CONFIRM SELECTION</button>
  </div>
  <div id="jloResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">JLO RESULTS</div>
      <div class="vrt-metrics" id="jloMetrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="jloExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<div id="resultsHistoryScreen" style="display:none;position:fixed;inset:0;background:rgba(4,10,18,0.97);z-index:200;flex-direction:column;align-items:center;padding:30px 20px;overflow-y:auto;">
  <div style="width:100%;max-width:680px;">
    <div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;">
      <div style="font-family:'EB Garamond',serif;font-size:1.4rem;color:var(--gold);letter-spacing:0.15em;">RESULTS HISTORY</div>
      <button class="intro-btn" onclick="hideResultsHistory()" style="padding:4px 14px;">✕ CLOSE</button>
    </div>
    <div style="display:flex;gap:10px;margin-bottom:16px;">
      <button class="sidebar-btn" onclick="exportAllResultsCSV()" style="width:auto;padding:6px 14px;font-size:0.72rem;">⬇ EXPORT ALL CSV</button>
      <button class="sidebar-btn" onclick="exportSequenceCSV()" style="width:auto;padding:6px 14px;font-size:0.72rem;" title="Per-trial stimulus sequence (standard/deviant order, onsets) for ERP processing">⬇ EXPORT SEQUENCE CSV</button>
      <button class="sidebar-btn" onclick="exportAllResultsJSON()" style="width:auto;padding:6px 14px;font-size:0.72rem;">⬇ EXPORT JSON</button>
      <button class="sidebar-btn" onclick="clearResultsHistory()" style="width:auto;padding:6px 14px;font-size:0.72rem;border-color:rgba(224,107,107,0.6);color:#e06b6b;">🗑 CLEAR ALL</button>
    </div>
    <div id="resultsHistoryList" style="display:flex;flex-direction:column;gap:8px;"></div>
    <div id="resultsHistoryEmpty" style="color:var(--dim);font-size:0.85rem;text-align:center;padding:40px 0;display:none;">No results stored yet.<br>Complete a task to see results here.</div>
  </div>
</div>

<div id="pasatScreen" class="task-screen" style="display:none;">
  <div id="pasatPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">PASAT</span>
    <span id="pasat-pace" style="font-size:0.75rem;color:var(--dim);letter-spacing:0.15em;">—</span>
    <span id="pasat-trial" style="font-size:0.82rem;color:var(--dim);">—</span>
    <span id="pasat-score" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);">0</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="pasatProgressBar" style="width:0%"></div></div>
  <div id="pasatStimPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <!-- Previous digit (shown small, fading) -->
    <div style="display:flex;align-items:baseline;gap:28px;">
      <div style="text-align:center;">
        <div style="font-size:0.65rem;color:var(--dim);letter-spacing:0.12em;margin-bottom:4px;">PREVIOUS</div>
        <div id="pasatPrev" style="font-size:2.8rem;font-family:'Source Code Pro',monospace;color:rgba(138,180,208,0.4);min-width:2.5rem;text-align:center;">—</div>
      </div>
      <div style="font-size:1.4rem;color:var(--dim);">+</div>
      <div style="text-align:center;">
        <div style="font-size:0.65rem;color:var(--dim);letter-spacing:0.12em;margin-bottom:4px;">CURRENT</div>
        <div id="pasatCurr" style="font-size:3.8rem;font-family:'Source Code Pro',monospace;color:var(--gold);min-width:2.5rem;text-align:center;">—</div>
      </div>
      <div style="font-size:1.4rem;color:var(--dim);">=</div>
      <div style="text-align:center;">
        <div style="font-size:0.65rem;color:var(--dim);letter-spacing:0.12em;margin-bottom:4px;">YOUR SUM</div>
        <input id="pasatInput" type="number" min="2" max="18"
          style="width:72px;font-size:2rem;font-family:'Source Code Pro',monospace;
                 text-align:center;background:#0a1620;border:2px solid #2a4060;
                 color:var(--gold);border-radius:3px;padding:4px 0;"
          autocomplete="off">
      </div>
    </div>
    <!-- Pace countdown bar -->
    <div style="width:340px;height:6px;background:#1a2f44;border-radius:3px;overflow:hidden;">
      <div id="pasatPaceBar" style="height:100%;background:var(--gold);width:100%;transition:none;"></div>
    </div>
    <div class="feedback" id="pasatFeedback"></div>
    <div style="font-size:0.78rem;color:var(--dim);">Type sum + Enter — or Enter to skip</div>
  </div>
  <div id="pasatResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">PASAT RESULTS</div>
      <div class="vrt-metrics" id="pasatMetrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="pasatExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<div id="ravltScreen" class="task-screen" style="display:none;">
  <div id="ravltPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">RAVLT</span>
    <span id="ravlt-phase" style="font-size:0.82rem;color:var(--gold);font-family:'Source Code Pro',monospace;letter-spacing:0.1em;">—</span>
    <span id="ravlt-status" style="font-size:0.78rem;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="ravltProgressBar" style="width:0%"></div></div>

  <!-- STUDY phase: word being read -->
  <div id="ravltStudyPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <div id="ravltWord" style="font-size:3rem;font-family:'EB Garamond',serif;color:var(--gold);min-height:4rem;text-align:center;letter-spacing:0.04em;"></div>
  </div>

  <!-- RECALL phase: type words -->
  <div id="ravltRecallPhase" style="display:none;flex-direction:column;align-items:center;gap:12px;width:100%;max-width:500px;">
    <div id="ravltRecallInstruct" style="font-size:0.82rem;color:var(--dim);text-align:center;"></div>
    <div style="display:flex;gap:8px;width:100%;">
      <input id="ravltInput" type="hidden" autocomplete="off" autocorrect="off" spellcheck="false"
        placeholder="type a word + Enter"
        style="flex:1;background:#0a1620;border:1px solid #2a4060;color:var(--text);
               font-family:'EB Garamond',serif;font-size:1.3rem;padding:8px 14px;border-radius:2px;">
      <button class="intro-btn primary" onclick="ravltDoneRecall()" style="padding:6px 14px;white-space:nowrap;">DONE ↵</button>
    </div>
    <div id="ravltWordList" style="display:flex;flex-wrap:wrap;gap:5px;width:100%;min-height:40px;"></div>
    <div id="ravltRecallCount" style="font-size:0.78rem;color:var(--dim);"></div>
  </div>

  <!-- RECOGNITION phase: OLD/NEW forced choice (typing-free) -->
  <div id="ravltRecogPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;width:100%;">
    <div id="ravltRecogInstruct" style="font-size:0.82rem;color:var(--dim);text-align:center;">Was this word on the list you saw?</div>
    <div id="ravltRecogCount" style="font-size:0.78rem;color:var(--dim);">0 / 0</div>
    <div id="ravltRecogWord" style="font-size:2.6rem;font-family:'EB Garamond',serif;color:#f5f0e8;min-height:3.2rem;text-align:center;letter-spacing:0.04em;margin:6px 0;"></div>
    <div style="display:flex;gap:18px;justify-content:center;">
      <button class="fr-recog-btn" id="ravltRecogOld" onclick="ravltRecogAnswer(true)">
        <span class="fr-recog-key">F</span><span class="fr-recog-lbl">OLD</span>
      </button>
      <button class="fr-recog-btn" id="ravltRecogNew" onclick="ravltRecogAnswer(false)">
        <span class="fr-recog-key">J</span><span class="fr-recog-lbl">NEW</span>
      </button>
    </div>
    <div class="feedback" id="ravltRecogFeedback" style="min-height:20px;"></div>
    <div class="fr-recall-hint" style="text-align:center;">Press F for OLD (was on the list), J for NEW — or click</div>
  </div>

  <!-- DELAY countdown -->
  <div id="ravltDelayPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div style="font-size:0.85rem;color:var(--dim);text-align:center;max-width:380px;line-height:1.7;">
      20-minute delay period.<br>Complete other tasks — then return here for the final recall.
    </div>
    <div id="ravltDelayTimer" style="font-size:2.5rem;font-family:'Source Code Pro',monospace;color:var(--gold);">20:00</div>
    <button class="intro-btn primary" onclick="ravltStartDelayedRecall()" style="margin-top:4px;">SKIP DELAY &amp; RECALL NOW</button>
    <div style="font-size:0.72rem;color:var(--dim);">(In a real RAVLT, wait the full 20 minutes)</div>
  </div>

  <!-- Results -->
  <div id="ravltResultsPhase" style="display:none;">
    <div class="vrt-results-wrap" style="max-width:580px;">
      <div class="vrt-results-title">RAVLT RESULTS</div>
      <div class="vrt-metrics" id="ravltMetrics"></div>
      <div id="ravltTrialBreakdown" style="margin-top:12px;font-size:0.8rem;color:var(--dim);font-family:'Source Code Pro',monospace;line-height:2;"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="ravltExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<div id="cvltScreen" class="task-screen" style="display:none;">
  <div id="cvltPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">CVLT</span>
    <span id="cvlt-phase" style="font-size:0.82rem;color:var(--gold);font-family:'Source Code Pro',monospace;letter-spacing:0.1em;">—</span>
    <span id="cvlt-status" style="font-size:0.78rem;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="cvltProgressBar" style="width:0%"></div></div>

  <!-- STUDY phase -->
  <div id="cvltStudyPhase" style="display:none;flex-direction:column;align-items:center;gap:12px;">
    <div id="cvltWord" style="font-size:3rem;font-family:'EB Garamond',serif;color:var(--gold);min-height:4rem;text-align:center;"></div>
    <div id="cvltWordCat" style="font-size:0.75rem;color:var(--dim);letter-spacing:0.15em;"></div>
    <div style="font-size:0.78rem;color:var(--dim);"></div>
  </div>

  <!-- FREE RECALL phase -->
  <div id="cvltFreeRecallPhase" style="display:none;flex-direction:column;align-items:center;gap:10px;width:100%;max-width:500px;">
    <div id="cvltFRInstruct" style="font-size:0.82rem;color:var(--dim);text-align:center;"></div>
    <div style="display:flex;gap:8px;width:100%;">
      <input id="cvltInput" type="hidden" autocomplete="off" autocorrect="off" spellcheck="false"
        placeholder="type a word + Enter"
        style="flex:1;background:#0a1620;border:1px solid #2a4060;color:var(--text);
               font-family:'EB Garamond',serif;font-size:1.3rem;padding:8px 14px;border-radius:2px;">
      <button class="intro-btn primary" onclick="cvltDoneFreeRecall()" style="padding:6px 14px;">DONE ↵</button>
    </div>
    <div id="cvltWordList" style="display:flex;flex-wrap:wrap;gap:5px;width:100%;min-height:36px;"></div>
    <div id="cvltFRCount" style="font-size:0.78rem;color:var(--dim);"></div>
  </div>

  <!-- CUED RECALL phase -->
  <div id="cvltCuedRecallPhase" style="display:none;flex-direction:column;align-items:center;gap:12px;width:100%;max-width:500px;">
    <div id="cvltCRInstruct" style="font-size:0.82rem;color:var(--dim);text-align:center;"></div>
    <div id="cvltCueList" style="display:flex;flex-direction:column;gap:10px;width:100%;"></div>
  </div>

  <!-- RECOGNITION phase -->
  <div id="cvltRecogPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;width:100%;max-width:500px;">
    <div style="font-size:0.82rem;color:var(--dim);">Was this word on Monday's list?</div>
    <div id="cvltRecogProgress" style="font-size:0.78rem;color:var(--dim);"></div>
    <div id="cvltRecogWord" style="font-size:3rem;font-family:'EB Garamond',serif;color:var(--text);min-height:4rem;text-align:center;"></div>
    <div style="display:flex;gap:18px;justify-content:center;">
      <button class="fr-recog-btn" id="cvltRecogOld" onclick="cvltRecogAnswer(true)">
        <span class="fr-recog-key">F</span><span class="fr-recog-lbl">OLD</span>
      </button>
      <button class="fr-recog-btn" id="cvltRecogNew" onclick="cvltRecogAnswer(false)">
        <span class="fr-recog-key">J</span><span class="fr-recog-lbl">NEW</span>
      </button>
    </div>
    <div class="feedback" id="cvltRecogFeedback" style="min-height:20px;"></div>
    <div class="fr-recall-hint" style="text-align:center;">Press F for OLD (on the list), J for NEW — or click</div>
  </div>

  <!-- DELAY countdown -->
  <div id="cvltDelayPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div style="font-size:0.85rem;color:var(--dim);text-align:center;max-width:380px;line-height:1.7;">
      20-minute delay.<br>Complete other tasks, then return for the long-delay recall.
    </div>
    <div id="cvltDelayTimer" style="font-size:2.5rem;font-family:'Source Code Pro',monospace;color:var(--gold);">20:00</div>
    <button class="intro-btn primary" onclick="cvltSkipDelay()">SKIP DELAY &amp; CONTINUE</button>
  </div>

  <!-- Results -->
  <div id="cvltResultsPhase" style="display:none;">
    <div class="vrt-results-wrap" style="max-width:600px;">
      <div class="vrt-results-title">CVLT RESULTS</div>
      <div class="vrt-metrics" id="cvltMetrics"></div>
      <div id="cvltTrialBreakdown" style="margin-top:10px;font-size:0.8rem;color:var(--dim);font-family:'Source Code Pro',monospace;line-height:2;"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="cvltExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<div id="igtScreen" class="task-screen" style="display:none;">
  <div id="igtPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">IOWA GAMBLING TASK</span>
    <span id="igt-trial" style="font-size:0.82rem;color:var(--dim);">Trial — / 100</span>
    <span id="igt-balance" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);">$2000</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="igtProgressBar" style="width:0%"></div></div>
  <div id="igtStimPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <!-- Four decks -->
    <div style="display:flex;gap:14px;">
      <div class="igt-deck" id="igtDeckA" onclick="igtChoose('A')" data-deck="A">
        <div class="igt-deck-label">A</div>
        <div class="igt-deck-count" id="igtCountA">40</div>
      </div>
      <div class="igt-deck" id="igtDeckB" onclick="igtChoose('B')" data-deck="B">
        <div class="igt-deck-label">B</div>
        <div class="igt-deck-count" id="igtCountB">40</div>
      </div>
      <div class="igt-deck" id="igtDeckC" onclick="igtChoose('C')" data-deck="C">
        <div class="igt-deck-label">C</div>
        <div class="igt-deck-count" id="igtCountC">40</div>
      </div>
      <div class="igt-deck" id="igtDeckD" onclick="igtChoose('D')" data-deck="D">
        <div class="igt-deck-label">D</div>
        <div class="igt-deck-count" id="igtCountD">40</div>
      </div>
    </div>
    <div id="igtFeedback" style="min-height:2.5rem;text-align:center;font-family:'Source Code Pro',monospace;font-size:1rem;"></div>
    <div style="font-size:0.78rem;color:var(--dim);">Click a deck to draw — maximize earnings over 100 trials</div>
    <!-- Block scores -->
    <div id="igtBlockScores" style="display:flex;gap:16px;font-size:0.72rem;font-family:'Source Code Pro',monospace;color:var(--dim);"></div>
  </div>
  <div id="igtResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">IOWA GAMBLING TASK RESULTS</div>
      <div class="vrt-metrics" id="igtMetrics"></div>
      <canvas id="igtChart" width="380" height="100" style="margin-top:10px;border:1px solid #1a2f44;border-radius:2px;background:#060d14;"></canvas>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="igtExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<!-- ════════════════════ PROBABILISTIC REVERSAL LEARNING ════════════════════ -->
<div id="prlScreen" class="task-screen" style="display:none;">
  <div id="prlPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:8px;">
    <span class="tl8" style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">PROBABILISTIC REVERSAL LEARNING</span>
    <span id="prl-trial" style="font-size:0.82rem;color:var(--dim);">Trial — / 80</span>
    <span id="prl-points" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);">0 pts</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="prlProgressBar" style="width:0%"></div></div>
  <div id="prlStimPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;margin-top:6px;">
    <div style="display:flex;gap:40px;">
      <div class="prl-card" id="prlCardL" onclick="prlChoose('L')"><div class="prl-glyph" id="prlGlyphL">✦</div><div class="prl-key">F</div></div>
      <div class="prl-card" id="prlCardR" onclick="prlChoose('R')"><div class="prl-glyph" id="prlGlyphR">❖</div><div class="prl-key">J</div></div>
    </div>
    <div id="prlFeedback" style="min-height:2.4rem;text-align:center;font-family:'Source Code Pro',monospace;font-size:1.1rem;"></div>
    <div class="tl8" style="font-size:0.78rem;color:var(--dim);max-width:420px;text-align:center;">Pick the symbol that pays off more often — press <b>F</b> (left) or <b>J</b> (right), or click. The better symbol can switch without warning.</div>
  </div>
  <div id="prlResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">PROBABILISTIC REVERSAL LEARNING RESULTS</div>
      <div class="vrt-metrics" id="prlMetrics"></div>
      <canvas id="prlChart" width="380" height="110" style="margin-top:10px;border:1px solid #1a2f44;border-radius:2px;background:#060d14;"></canvas>
      <div class="tl8" style="font-size:0.62rem;color:var(--dim);margin-top:4px;font-family:'Source Code Pro',monospace;">accuracy per 5-trial bin · dashed lines = contingency reversals</div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="prlExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>
<style>
.prl-card{
  width:120px;height:150px;border:2px solid rgba(212,180,86,0.35);border-radius:10px;
  background:#0a1620;display:flex;flex-direction:column;align-items:center;
  justify-content:center;cursor:pointer;transition:all 0.12s;gap:14px;user-select:none;
}
.prl-card:hover{ background:rgba(212,180,86,0.08);border-color:rgba(212,180,86,0.7); }
.prl-card.disabled{ opacity:0.45;pointer-events:none; }
.prl-card.chosen{ border-color:var(--gold);box-shadow:0 0 14px rgba(212,180,86,0.4); }
.prl-glyph{ font-size:3.6rem;line-height:1; }
.prl-key{ font-family:"Source Code Pro",monospace;font-size:0.8rem;color:var(--dim);border:1px solid rgba(138,180,208,0.3);border-radius:3px;padding:1px 8px; }
</style>

<!-- ════════════════════ DELAY DISCOUNTING ════════════════════ -->
<div id="ddScreen" class="task-screen" style="display:none;">
  <div id="ddPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:8px;">
    <span class="tl8" style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">DELAY DISCOUNTING</span>
    <span id="dd-delay" style="font-size:0.82rem;color:var(--dim);">Delay — / —</span>
  </div>
  <div class="progress-bar-wrap" style="width:420px"><div class="progress-bar" id="ddProgressBar" style="width:0%"></div></div>
  <div id="ddStimPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;margin-top:10px;">
    <div class="tl8" style="font-size:0.82rem;color:var(--dim);letter-spacing:0.08em;">Which would you prefer?</div>
    <div style="display:flex;gap:28px;align-items:stretch;">
      <div class="dd-opt" id="ddOptL" onclick="ddChoose('L')"><div class="dd-amt" id="ddAmtL">—</div><div class="dd-when" id="ddWhenL">—</div><div class="dd-key">F</div></div>
      <div class="dd-or tl8">or</div>
      <div class="dd-opt" id="ddOptR" onclick="ddChoose('R')"><div class="dd-amt" id="ddAmtR">—</div><div class="dd-when" id="ddWhenR">—</div><div class="dd-key">J</div></div>
    </div>
    <div class="tl8" style="font-size:0.76rem;color:var(--dim);max-width:440px;text-align:center;">There is no right answer — choose the option you genuinely prefer. Press <b>F</b> (left) / <b>J</b> (right) or click.</div>
  </div>
  <div id="ddResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">DELAY DISCOUNTING RESULTS</div>
      <div class="vrt-metrics" id="ddMetrics"></div>
      <canvas id="ddChart" width="420" height="150" style="margin-top:10px;border:1px solid #1a2f44;border-radius:2px;background:#060d14;"></canvas>
      <div class="tl8" style="font-size:0.62rem;color:var(--dim);margin-top:4px;font-family:'Source Code Pro',monospace;">subjective value vs delay · ● indifference points · dashed = hyperbolic fit</div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="ddExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>
<style>
.dd-opt{
  width:170px;min-height:120px;border:2px solid rgba(212,180,86,0.35);border-radius:10px;
  background:#0a1620;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:8px;cursor:pointer;transition:all 0.12s;user-select:none;padding:14px 10px;
}
.dd-opt:hover{ background:rgba(212,180,86,0.08);border-color:rgba(212,180,86,0.7); }
.dd-opt.disabled{ opacity:0.45;pointer-events:none; }
.dd-amt{ font-family:"Source Code Pro",monospace;font-size:1.7rem;color:var(--gold);font-weight:bold;line-height:1; }
.dd-when{ font-size:0.82rem;color:var(--sky,#8ab4d0);text-align:center; }
.dd-key{ font-family:"Source Code Pro",monospace;font-size:0.74rem;color:var(--dim);border:1px solid rgba(138,180,208,0.3);border-radius:3px;padding:1px 8px;margin-top:4px; }
.dd-or{ display:flex;align-items:center;color:var(--dim);font-family:'EB Garamond',serif;font-style:italic;font-size:1rem; }
</style>

<!-- ════════════════════ SERIAL REACTION TIME TASK ════════════════════ -->
<div id="srttScreen" class="task-screen" style="display:none;">
  <div id="srttPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:8px;">
    <span class="tl8" style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">SERIAL REACTION TIME TASK</span>
    <span id="srtt-block" style="font-size:0.82rem;color:var(--dim);">Block — / —</span>
    <span id="srtt-trial" style="font-size:0.82rem;color:var(--dim);">Trial —</span>
  </div>
  <div class="progress-bar-wrap" style="width:440px"><div class="progress-bar" id="srttProgressBar" style="width:0%"></div></div>
  <div id="srttStimPhase" style="display:none;flex-direction:column;align-items:center;gap:22px;margin-top:18px;">
    <div style="display:flex;gap:18px;">
      <div class="srtt-box" id="srttBox0" onclick="srttRespond(0)"><div class="srtt-fill"></div><div class="srtt-key">D</div></div>
      <div class="srtt-box" id="srttBox1" onclick="srttRespond(1)"><div class="srtt-fill"></div><div class="srtt-key">F</div></div>
      <div class="srtt-box" id="srttBox2" onclick="srttRespond(2)"><div class="srtt-fill"></div><div class="srtt-key">J</div></div>
      <div class="srtt-box" id="srttBox3" onclick="srttRespond(3)"><div class="srtt-fill"></div><div class="srtt-key">K</div></div>
    </div>
    <div class="tl8" style="font-size:0.78rem;color:var(--dim);max-width:460px;text-align:center;">Press the key under the highlighted box (<b>D F J K</b>) — or click it — as fast as you can.</div>
  </div>
  <div id="srttResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">SERIAL REACTION TIME RESULTS</div>
      <div class="vrt-metrics" id="srttMetrics"></div>
      <canvas id="srttChart" width="440" height="140" style="margin-top:10px;border:1px solid #1a2f44;border-radius:2px;background:#060d14;"></canvas>
      <div class="tl8" style="font-size:0.62rem;color:var(--dim);margin-top:4px;font-family:'Source Code Pro',monospace;">mean RT per block · gold = sequence · red = random block</div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="srttExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>
<style>
.srtt-box{
  width:78px;height:78px;border:2px solid rgba(138,180,208,0.4);border-radius:10px;
  background:#0a1620;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:6px;cursor:pointer;transition:background 0.06s,border-color 0.06s;user-select:none;position:relative;
}
.srtt-box .srtt-fill{ width:34px;height:34px;border-radius:7px;background:transparent;transition:background 0.06s; }
.srtt-box.lit{ border-color:var(--gold); }
.srtt-box.lit .srtt-fill{ background:var(--gold); box-shadow:0 0 16px rgba(212,180,86,0.6); }
.srtt-box.err{ border-color:#e05c5c; }
.srtt-box.err .srtt-fill{ background:#e05c5c; }
.srtt-box.ok .srtt-fill{ background:#81c784; }
.srtt-key{ font-family:"Source Code Pro",monospace;font-size:0.72rem;color:var(--dim);border:1px solid rgba(138,180,208,0.3);border-radius:3px;padding:0 6px; }
</style>

<!-- ════════════════════ BALLOON ANALOGUE RISK TASK ════════════════════ -->
<div id="bartScreen" class="task-screen" style="display:none;">
  <div id="bartPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:8px;">
    <span class="tl8" style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">BALLOON ANALOGUE RISK TASK</span>
    <span id="bart-balloon" style="font-size:0.82rem;color:var(--dim);">Balloon — / —</span>
    <span id="bart-total" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);">$0.00 banked</span>
  </div>
  <div class="progress-bar-wrap" style="width:440px"><div class="progress-bar" id="bartProgressBar" style="width:0%"></div></div>
  <div id="bartStimPhase" style="display:none;flex-direction:column;align-items:center;gap:8px;margin-top:4px;">
    <div id="bartBalloonWrap" style="height:230px;display:flex;align-items:flex-end;justify-content:center;">
      <div id="bartBalloon"></div>
    </div>
    <div id="bartTemp" style="font-family:'Source Code Pro',monospace;font-size:1rem;color:var(--sky,#8ab4d0);min-height:1.4rem;">$0.00 in this balloon · 0 pumps</div>
    <div id="bartFeedback" style="min-height:1.6rem;font-family:'Source Code Pro',monospace;font-size:1rem;text-align:center;"></div>
    <div style="display:flex;gap:18px;margin-top:2px;">
      <button class="intro-btn" id="bartPumpBtn" onclick="bartPump()" style="min-width:140px;">⬆ PUMP (F)</button>
      <button class="intro-btn primary" id="bartBankBtn" onclick="bartCollect()" style="min-width:140px;">💰 BANK (J)</button>
    </div>
  </div>
  <div id="bartResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">BALLOON ANALOGUE RISK TASK RESULTS</div>
      <div class="vrt-metrics" id="bartMetrics"></div>
      <canvas id="bartChart" width="440" height="130" style="margin-top:10px;border:1px solid #1a2f44;border-radius:2px;background:#060d14;"></canvas>
      <div class="tl8" style="font-size:0.62rem;color:var(--dim);margin-top:4px;font-family:'Source Code Pro',monospace;">pumps per balloon · gold = banked · red = burst</div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="bartExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>
<style>
#bartBalloon{
  width:46px;height:46px;border-radius:50% 50% 48% 48%;
  background:radial-gradient(circle at 38% 32%, #f0c25a, #d4a520 60%, #b8881a);
  box-shadow:inset -6px -8px 14px rgba(0,0,0,0.25); transition:width 0.08s,height 0.08s,background 0.12s;
  position:relative;
}
#bartBalloon::after{ content:'';position:absolute;bottom:-7px;left:50%;transform:translateX(-50%);
  border-left:5px solid transparent;border-right:5px solid transparent;border-top:8px solid #b8881a; }
#bartBalloon.popped{ background:none;box-shadow:none; }
#bartBalloon.popped::after{ display:none; }
</style>

<!-- ════════════════════ OPERATION SPAN ════════════════════ -->
<div id="ospanScreen" class="task-screen" style="display:none;">
  <div id="ospanPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:8px;">
    <span class="tl8" style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">OPERATION SPAN</span>
    <span id="ospan-set" style="font-size:0.82rem;color:var(--dim);">Set — / —</span>
    <span id="ospan-acc" style="font-size:0.82rem;color:var(--dim);"></span>
  </div>
  <div class="progress-bar-wrap" style="width:440px"><div class="progress-bar" id="ospanProgressBar" style="width:0%"></div></div>

  <div id="ospanMathPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;margin-top:24px;">
    <div class="tl8" style="font-size:0.82rem;color:var(--dim);letter-spacing:0.08em;">Is this equation correct?</div>
    <div id="ospanEq" style="font-family:'Source Code Pro',monospace;font-size:1.9rem;color:var(--gold);">( — )</div>
    <div style="display:flex;gap:20px;">
      <button class="intro-btn" onclick="ospanMathAnswer(true)" style="min-width:120px;">✓ TRUE (T)</button>
      <button class="intro-btn" onclick="ospanMathAnswer(false)" style="min-width:120px;">✗ FALSE (F)</button>
    </div>
  </div>

  <div id="ospanLetterPhase" style="display:none;flex-direction:column;align-items:center;gap:10px;margin-top:34px;">
    <div class="tl8" style="font-size:0.78rem;color:var(--dim);letter-spacing:0.08em;">Remember this letter</div>
    <div id="ospanLetter" style="font-family:'Source Code Pro',monospace;font-size:4rem;color:var(--gold);font-weight:bold;">—</div>
  </div>

  <div id="ospanRecallPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;margin-top:14px;">
    <div class="tl8" style="font-size:0.82rem;color:var(--dim);letter-spacing:0.06em;">Click the letters in the order they appeared</div>
    <div id="ospanResponse" style="display:flex;gap:8px;min-height:42px;"></div>
    <div id="ospanGrid" style="display:grid;grid-template-columns:repeat(6,1fr);gap:8px;max-width:340px;">
      <button class="ospan-letter" onclick="ospanPick('F')">F</button><button class="ospan-letter" onclick="ospanPick('H')">H</button><button class="ospan-letter" onclick="ospanPick('J')">J</button><button class="ospan-letter" onclick="ospanPick('K')">K</button><button class="ospan-letter" onclick="ospanPick('L')">L</button><button class="ospan-letter" onclick="ospanPick('N')">N</button><button class="ospan-letter" onclick="ospanPick('P')">P</button><button class="ospan-letter" onclick="ospanPick('Q')">Q</button><button class="ospan-letter" onclick="ospanPick('R')">R</button><button class="ospan-letter" onclick="ospanPick('S')">S</button><button class="ospan-letter" onclick="ospanPick('T')">T</button><button class="ospan-letter" onclick="ospanPick('Y')">Y</button>
    </div>
    <div style="display:flex;gap:10px;margin-top:4px;">
      <button class="intro-btn" onclick="ospanBlank()">□ BLANK</button>
      <button class="intro-btn" onclick="ospanBackspace()">⌫ BACK</button>
      <button class="intro-btn" onclick="ospanClear()">✕ CLEAR</button>
      <button class="intro-btn primary" onclick="ospanSubmit()">✓ SUBMIT</button>
    </div>
  </div>

  <div id="ospanResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">OPERATION SPAN RESULTS</div>
      <div class="vrt-metrics" id="ospanMetrics"></div>
      <canvas id="ospanChart" width="440" height="130" style="margin-top:10px;border:1px solid #1a2f44;border-radius:2px;background:#060d14;"></canvas>
      <div class="tl8" style="font-size:0.62rem;color:var(--dim);margin-top:4px;font-family:'Source Code Pro',monospace;">proportion of letters recalled in correct position, by set size</div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="ospanExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>
<style>
.ospan-letter{
  font-family:"Source Code Pro",monospace;font-size:1.2rem;color:var(--gold);font-weight:bold;
  width:46px;height:46px;border:2px solid rgba(212,180,86,0.35);border-radius:8px;background:#0a1620;
  cursor:pointer;transition:all 0.1s;user-select:none;
}
.ospan-letter:hover{ background:rgba(212,180,86,0.1);border-color:rgba(212,180,86,0.7); }
.ospan-rbox{
  width:38px;height:42px;border:2px solid rgba(138,180,208,0.3);border-radius:6px;background:#060d14;
  display:flex;align-items:center;justify-content:center;font-family:"Source Code Pro",monospace;
  font-size:1.3rem;color:var(--gold);
}
.ospan-rbox.blank{ color:var(--dim); }
</style>

<!-- ════════════════════ TEMPORAL BISECTION ════════════════════ -->
<div id="tbisScreen" class="task-screen" style="display:none;">
  <div id="tbisPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:8px;">
    <span class="tl8" style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">TEMPORAL BISECTION</span>
    <span id="tbis-phase" style="font-size:0.82rem;color:var(--dim);"></span>
  </div>
  <div class="progress-bar-wrap" style="width:440px"><div class="progress-bar" id="tbisProgressBar" style="width:0%"></div></div>
  <div id="tbisStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;margin-top:6px;">
    <div id="tbisStimWrap" style="height:170px;display:flex;align-items:center;justify-content:center;">
      <div id="tbisStim" style="width:120px;height:120px;border-radius:14px;background:#0a1620;border:1px solid #1a2f44;"></div>
    </div>
    <div id="tbisLabel" style="min-height:1.4rem;font-family:'Source Code Pro',monospace;font-size:1rem;color:var(--sky,#8ab4d0);"></div>
    <div id="tbisResponse" style="display:none;gap:20px;">
      <button class="intro-btn" onclick="tbisRespond('short')" style="min-width:130px;">◄ SHORT (F)</button>
      <button class="intro-btn" onclick="tbisRespond('long')" style="min-width:130px;">LONG ► (J)</button>
    </div>
  </div>
  <div id="tbisResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">TEMPORAL BISECTION RESULTS</div>
      <div class="vrt-metrics" id="tbisMetrics"></div>
      <canvas id="tbisChart" width="440" height="150" style="margin-top:10px;border:1px solid #1a2f44;border-radius:2px;background:#060d14;"></canvas>
      <div class="tl8" style="font-size:0.62rem;color:var(--dim);margin-top:4px;font-family:'Source Code Pro',monospace;">P("long") vs duration · ● data · dashed = bisection point (50%)</div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="tbisExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>
<style>
#tbisStim.on{ background:radial-gradient(circle at 40% 35%, #f0c25a, #d4a520 65%, #b8881a); border-color:var(--gold); box-shadow:0 0 28px rgba(212,180,86,0.5); }
</style>

<style>
.igt-deck{
  width:80px;height:110px;border:2px solid rgba(212,180,86,0.35);border-radius:6px;
  background:#0a1620;display:flex;flex-direction:column;align-items:center;
  justify-content:center;cursor:pointer;transition:all 0.12s;gap:8px;
  user-select:none;
}
.igt-deck:hover{ background:rgba(212,180,86,0.08);border-color:rgba(212,180,86,0.7); }
.igt-deck.disabled{ opacity:0.4;pointer-events:none; }
.igt-deck-label{ font-family:"Source Code Pro",monospace;font-size:1.6rem;color:var(--gold);font-weight:bold; }
.igt-deck-count{ font-family:"Source Code Pro",monospace;font-size:0.72rem;color:var(--dim); }
</style>

<div id="tolScreen" class="task-screen" style="display:none;">
  <div id="tolPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">TOWER OF LONDON</span>
    <span id="tol-problem" style="font-size:0.82rem;color:var(--dim);">Problem — / —</span>
    <span id="tol-moves" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">Moves: 0</span>
    <span id="tol-min" style="font-size:0.78rem;color:var(--dim);">Min: —</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="tolProgressBar" style="width:0%"></div></div>
  <div id="tolStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div style="display:flex;gap:32px;align-items:flex-end;">
      <div style="text-align:center;">
        <div style="font-size:0.65rem;color:var(--dim);letter-spacing:0.12em;margin-bottom:6px;">GOAL</div>
        <canvas id="tolGoalCanvas" width="220" height="130" style="border:1px solid #1a2f44;background:#060d14;border-radius:2px;"></canvas>
      </div>
      <div style="text-align:center;">
        <div style="font-size:0.65rem;color:var(--dim);letter-spacing:0.12em;margin-bottom:6px;">CURRENT</div>
        <canvas id="tolBoardCanvas" width="220" height="130" style="border:1px solid #1a2f44;background:#060d14;border-radius:2px;cursor:pointer;"></canvas>
      </div>
    </div>
    <div id="tolInstruct" style="font-size:0.8rem;color:var(--dim);text-align:center;min-height:1.2rem;"></div>
    <div class="feedback" id="tolFeedback"></div>
    <div style="display:flex;gap:10px;">
      <button class="intro-btn" onclick="tolReset()" style="padding:5px 14px;">↺ RESET</button>
      <button class="intro-btn primary" onclick="tolGiveUp()" style="padding:5px 14px;">NEXT PROBLEM →</button>
    </div>
  </div>
  <div id="tolResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">TOWER OF LONDON RESULTS</div>
      <div class="vrt-metrics" id="tolMetrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="tolExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<div id="rmetScreen" class="task-screen" style="display:none;">
  <div id="rmetPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">READING THE MIND IN THE EYES</span>
    <span id="rmet-trial" style="font-size:0.82rem;color:var(--dim);">— / 36</span>
    <span id="rmet-score" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">0</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="rmetProgressBar" style="width:0%"></div></div>
  <div id="rmetStimPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <!-- Eye illustration -->
    <canvas id="rmetEyeCanvas" width="320" height="120"
      style="border:1px solid #1a2f44;background:#f5f0e8;border-radius:4px;"></canvas>
    <!-- Four options -->
    <div id="rmetOptions" style="display:grid;grid-template-columns:1fr 1fr;gap:8px;width:320px;"></div>
    <div class="feedback" id="rmetFeedback"></div>
    <div style="font-size:0.78rem;color:var(--dim);">What is this person thinking or feeling?</div>
  </div>
  <div id="rmetResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">RMET RESULTS</div>
      <div class="vrt-metrics" id="rmetMetrics"></div>
      <div style="font-size:0.78rem;color:var(--dim);margin-top:8px;line-height:1.7;max-width:440px;">
        Normative mean ≈ 26/36 (adults). Below 22 may suggest ToM difficulties.<br>
        <em>Note: this version uses procedurally rendered eyes. Validated photographic stimuli require the original Baron-Cohen materials.</em>
      </div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="rmetExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<div id="p1n1Screen" class="task-screen" style="display:none;">
  <div id="p1n1PracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">P1/N1 SPATIAL ATTENTION</span>
    <span id="p1n1-trial" style="font-size:0.82rem;color:var(--dim);">—</span>
    <span id="p1n1-attend" style="font-size:0.75rem;color:var(--gold);letter-spacing:0.2em;">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="p1n1ProgressBar" style="width:0%"></div></div>
  <div id="p1n1StimPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <div style="position:relative;width:400px;height:80px;display:flex;align-items:center;justify-content:center;">
      <div id="p1n1Left" style="position:absolute;left:20px;width:60px;height:60px;border:1px solid #1a2f44;background:#060d14;border-radius:3px;"></div>
      <div id="p1n1Fix" style="font-size:1.6rem;color:var(--mid);display:none;"></div>
      <div id="p1n1Right" style="position:absolute;right:20px;width:60px;height:60px;border:1px solid #1a2f44;background:#060d14;border-radius:3px;"></div>
      <div id="p1n1Cue" style="position:absolute;display:flex;align-items:center;justify-content:center;"></div>
    </div>
    <div class="feedback" id="p1n1Feedback"></div>
    <div class="key-hint">F = target on LEFT · J = target on RIGHT · ignore distractors</div>
  </div>
  <div id="p1n1ResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">P1/N1 RESULTS</div>
      <div class="vrt-metrics" id="p1n1Metrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="p1n1ExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<div id="cnvwScreen" class="task-screen" style="display:none;">
  <div id="cnvwPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">CNV WARNING SIGNAL</span>
    <span id="cnvw-trial" style="font-size:0.82rem;color:var(--dim);">—</span>
    <span id="cnvw-phase" style="font-size:0.75rem;color:var(--dim);letter-spacing:0.15em;">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="cnvwProgressBar" style="width:0%"></div></div>
  <div id="cnvwStimPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <div id="cnvwDisplay" style="font-size:3rem;color:var(--mid);min-height:4rem;display:flex;align-items:center;justify-content:center;">+</div>
    <div id="cnvwPaceBar" style="width:300px;height:6px;background:#1a2f44;border-radius:3px;overflow:hidden;"><div id="cnvwPaceFill" style="height:100%;background:var(--gold);width:0%;transition:none;"></div></div>
    <div class="feedback" id="cnvwFeedback"></div>
    <div class="key-hint">F = respond to imperative stimulus (S2)</div>
  </div>
  <div id="cnvwResultsPhase" style="display:none;">
    <div class="vrt-results-wrap"><div class="vrt-results-title">CNV WARNING RESULTS</div>
    <div class="vrt-metrics" id="cnvwMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
      <button class="intro-btn" onclick="cnvwExportCSV()">⬇ EXPORT CSV</button>
    </div></div>
  </div>
</div>

<div id="thalphaScreen" class="task-screen" style="display:none;">
  <div id="thalphaPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">THETA / ALPHA OSCILLATIONS</span>
    <span id="thalpha-phase" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);letter-spacing:0.2em;">—</span>
    <span id="thalpha-time" style="font-size:0.82rem;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="thalphaProgressBar" style="width:0%"></div></div>
  <div id="thalphaStimPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <div id="thalphaInstruct" style="font-size:2rem;color:var(--gold);letter-spacing:0.1em;min-height:3rem;text-align:center;"></div>
    <div id="thalphaFix" style="font-size:2.5rem;color:var(--mid);display:none;">+</div>
    <div style="font-size:0.78rem;color:var(--dim);" id="thalphaHint"></div>
  </div>
  <div id="thalphaResultsPhase" style="display:none;">
    <div class="vrt-results-wrap"><div class="vrt-results-title">THETA/ALPHA RESULTS</div>
    <div class="vrt-metrics" id="thalphaMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
      <button class="intro-btn" onclick="thalphaExportCSV()">⬇ EXPORT CSV</button>
    </div></div>
  </div>
</div>


<div id="sartScreen" class="task-screen" style="display:none;">
  <div id="sartPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">SART</span>
    <span id="sart-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="sart-score" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="sartProgressBar" style="width:0%"></div></div>
  <div id="sartStimPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <div id="sartDigit" style="font-size:5rem;font-family:'Source Code Pro',monospace;color:var(--gold);min-height:7rem;display:flex;align-items:center;justify-content:center;"></div>
    <div class="feedback" id="sartFeedback"></div>
    <div class="key-hint">SPACE = respond to all digits EXCEPT 3</div>
  </div>
  <div id="sartResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">SART RESULTS</div><div class="vrt-metrics" id="sartMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="sartExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>

<div id="ufovScreen" class="task-screen" style="display:none;">
  <div id="ufovPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">UFOV</span>
    <span id="ufov-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="ufov-thresh" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="ufovProgressBar" style="width:0%"></div></div>
  <div id="ufovStimPhase" style="display:none;flex-direction:column;align-items:center;gap:10px;">
    <canvas id="ufovCanvas" width="300" height="300" style="border:1px solid #1a2f44;background:#060d14;cursor:pointer;border-radius:3px;"></canvas>
    <div class="feedback" id="ufovFeedback"></div>
    <div class="key-hint">Click where you saw the peripheral flash</div>
  </div>
  <div id="ufovResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">UFOV RESULTS</div><div class="vrt-metrics" id="ufovMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="ufovExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>

<div id="palScreen" class="task-screen" style="display:none;">
  <div id="palPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">PAIRED ASSOCIATE LEARNING</span>
    <span id="pal-phase" style="font-size:0.82rem;color:var(--gold);font-family:'Source Code Pro',monospace;">--</span>
    <span id="pal-trial" style="font-size:0.78rem;color:var(--dim);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="palProgressBar" style="width:0%"></div></div>
  <div id="palStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;width:100%;max-width:500px;">
    <div id="palPairDisplay" style="font-size:1.8rem;font-family:'EB Garamond',serif;color:var(--gold);text-align:center;min-height:2.5rem;"></div>
    <div id="palCueDisplay" style="font-size:1.1rem;font-family:'EB Garamond',serif;color:var(--dim);text-align:center;min-height:1.8rem;"></div>
    <div id="palChoices" style="display:none;flex-wrap:wrap;gap:10px;justify-content:center;max-width:480px;"></div>
    <div class="feedback" id="palFeedback"></div>
  </div>
  <div id="palResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">PAL RESULTS</div><div class="vrt-metrics" id="palMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="palExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>

<div id="srcmemScreen" class="task-screen" style="display:none;">
  <div id="srcmemPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">SOURCE MEMORY</span>
    <span id="srcmem-phase" style="font-size:0.82rem;color:var(--gold);font-family:'Source Code Pro',monospace;">--</span>
    <span id="srcmem-trial" style="font-size:0.78rem;color:var(--dim);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="srcmemProgressBar" style="width:0%"></div></div>
  <div id="srcmemStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div style="display:flex;gap:40px;align-items:center;">
      <div id="srcmemLeft" style="width:140px;height:60px;border:2px solid #1a2f44;background:#060d14;display:flex;align-items:center;justify-content:center;border-radius:3px;font-family:'EB Garamond',serif;font-size:1.4rem;color:var(--mid);"></div>
      <div id="srcmemRight" style="width:140px;height:60px;border:2px solid #1a2f44;background:#060d14;display:flex;align-items:center;justify-content:center;border-radius:3px;font-family:'EB Garamond',serif;font-size:1.4rem;color:var(--mid);"></div>
    </div>
    <div style="display:flex;gap:40px;font-size:0.65rem;color:var(--dim);letter-spacing:0.12em;">
      <span style="width:140px;text-align:center;">LEFT</span>
      <span style="width:140px;text-align:center;">RIGHT</span>
    </div>
    <div id="srcmemInstruct" style="font-size:0.82rem;color:var(--dim);text-align:center;"></div>
    <div class="feedback" id="srcmemFeedback"></div>
    <div class="key-hint" id="srcmemHint"></div>
  </div>
  <div id="srcmemResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">SOURCE MEMORY RESULTS</div><div class="vrt-metrics" id="srcmemMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="srcmemExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>

<div id="bntScreen" class="task-screen" style="display:none;">
  <div id="bntPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">BOSTON NAMING TEST</span>
    <span id="bnt-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="bnt-score" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">0</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="bntProgressBar" style="width:0%"></div></div>
  <div id="bntStimPhase" style="display:none;flex-direction:column;align-items:center;gap:12px;">
    <canvas id="bntCanvas" width="220" height="160" style="border:1px solid #1a2f44;background:#f5f0e8;border-radius:3px;"></canvas>
    <div id="bntCue" style="font-size:0.82rem;color:var(--dim);min-height:1.2rem;text-align:center;">Which word names this object?</div>
    <div id="bntChoices" style="display:flex;flex-wrap:wrap;gap:10px;justify-content:center;max-width:460px;"></div>
    <div class="feedback" id="bntFeedback"></div>
    <div class="fr-recall-hint" style="text-align:center;">Click an option or press its number (1–4)</div>
  </div>
  <div id="bntResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">BOSTON NAMING RESULTS</div><div class="vrt-metrics" id="bntMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="bntExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>

<div id="ferScreen" class="task-screen" style="display:none;">
  <div id="ferPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">FACIAL EMOTION RECOGNITION</span>
    <span id="fer-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="fer-score" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">0</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="ferProgressBar" style="width:0%"></div></div>
  <div id="ferStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <canvas id="ferCanvas" width="200" height="200" style="border:1px solid #1a2f44;background:#f5f0e8;border-radius:50%;"></canvas>
    <div id="ferOptions" style="display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;width:320px;"></div>
    <div class="feedback" id="ferFeedback"></div>
  </div>
  <div id="ferResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">FACIAL EMOTION RECOGNITION RESULTS</div><div class="vrt-metrics" id="ferMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="ferExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>

<div id="tojScreen" class="task-screen" style="display:none;">
  <div id="tojPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">TEMPORAL ORDER JUDGMENT</span>
    <span id="toj-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="toj-soa" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">SOA --</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="tojProgressBar" style="width:0%"></div></div>
  <div id="tojStimPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <div style="display:flex;gap:80px;align-items:center;min-height:80px;">
      <div id="tojLeft" style="width:60px;height:60px;border:2px solid #1a2f44;background:#060d14;border-radius:4px;"></div>
      <div style="font-size:1.5rem;color:var(--dim);">+</div>
      <div id="tojRight" style="width:60px;height:60px;border:2px solid #1a2f44;background:#060d14;border-radius:4px;"></div>
    </div>
    <div class="feedback" id="tojFeedback"></div>
    <div class="key-hint">F = LEFT appeared first -- J = RIGHT appeared first</div>
  </div>
  <div id="tojResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">TEMPORAL ORDER JUDGMENT RESULTS</div><div class="vrt-metrics" id="tojMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="tojExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>

<div id="gaborScreen" class="task-screen" style="display:none;">
  <div id="gaborPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">GABOR PATCH — CONTRAST THRESHOLD</span>
    <span id="gabor-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="gabor-contrast" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">c=---</span>
    <span id="gabor-revs" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--dim);">REV 0/8</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="gaborProgressBar" style="width:0%"></div></div>
  <div id="gaborStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <canvas id="gaborCanvas" width="320" height="320" style="background:#808080;border:1px solid #1a2f44;border-radius:3px;"></canvas>
    <div class="feedback" id="gaborFeedback"></div>
    <div class="key-hint">F = tilted LEFT &nbsp;·&nbsp; J = tilted RIGHT</div>
  </div>
  <div id="gaborResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">GABOR CONTRAST THRESHOLD RESULTS</div>
    <div class="vrt-metrics" id="gaborMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="gaborExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>

<div id="cdtScreen" class="task-screen" style="display:none;">
  <div id="cdtPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;flex-wrap:wrap;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">CLOCK DRAWING TEST</span>
    <span id="cdt-elapsed" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">0.0s</span>
    <span id="cdt-strokes" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--dim);">strokes: 0</span>
  </div>
  <div id="cdtStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div style="color:var(--dim);font-size:0.85rem;text-align:center;max-width:520px;line-height:1.5;">
      Draw a clock face with all the numbers (1–12) and set the hands to <strong style="color:var(--gold);">10 past 11</strong> (11:10).
    </div>
    <canvas id="cdtCanvas" width="420" height="420" style="background:#ffffff;border:1px solid #1a2f44;border-radius:3px;touch-action:none;cursor:crosshair;"></canvas>
    <div style="display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:center;">
      <label style="color:var(--dim);font-size:0.78rem;">Time you drew:
        <input id="cdtTimeInput" type="text" placeholder="e.g. 11:10" maxlength="8" style="background:#0a1520;border:1px solid #2a4060;color:var(--gold);padding:4px 8px;border-radius:2px;font-family:'Source Code Pro',monospace;width:80px;margin-left:6px;">
      </label>
      <button class="intro-btn" onclick="cdtClearCanvas()">CLEAR</button>
      <button class="intro-btn primary" onclick="cdtFinish()">DONE</button>
    </div>
  </div>
  <div id="cdtResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">CLOCK DRAWING — SESSION RECORD</div>
    <div class="vrt-metrics" id="cdtMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="cdtExportJSON()">EXPORT JSON</button>
      <button class="intro-btn" onclick="cdtExportPNG()">EXPORT PNG</button>
    </div></div></div>
</div>

<div id="starScreen" class="task-screen" style="display:none;">
  <div id="starPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;flex-wrap:wrap;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">STAR CANCELLATION</span>
    <span id="star-found" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">found: 0 / 52</span>
    <span id="star-elapsed" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--dim);">0.0s</span>
  </div>
  <div id="starStimPhase" style="display:none;flex-direction:column;align-items:center;gap:10px;">
    <div style="color:var(--dim);font-size:0.82rem;text-align:center;max-width:600px;">
      Click every <strong style="color:var(--gold);">small star</strong> ✦ you can find. Ignore the large stars, letters, and words.
    </div>
    <canvas id="starCanvas" width="780" height="440" style="background:#ffffff;border:1px solid #1a2f44;border-radius:3px;touch-action:none;cursor:crosshair;"></canvas>
    <div style="display:flex;gap:10px;">
      <button class="intro-btn primary" onclick="starFinish()">DONE</button>
    </div>
  </div>
  <div id="starResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">STAR CANCELLATION — RESULTS</div>
    <div class="vrt-metrics" id="starMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="starExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>

<div id="matrixScreen" class="task-screen" style="display:none;">
  <div id="matrixPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">MATRIX REASONING</span>
    <span id="matrix-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="matrixProgressBar" style="width:0%"></div></div>
  <div id="matrixStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <canvas id="matrixCanvas" width="280" height="200" style="border:1px solid #1a2f44;background:#060d14;border-radius:3px;"></canvas>
    <div id="matrixOptions" style="display:flex;gap:8px;flex-wrap:wrap;justify-content:center;max-width:360px;"></div>
    <div class="feedback" id="matrixFeedback"></div>
  </div>
  <div id="matrixResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">MATRIX REASONING RESULTS</div><div class="vrt-metrics" id="matrixMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="matrixExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>

<div id="metaScreen" class="task-screen" style="display:none;">
  <div id="metaPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">METACOGNITION</span>
    <span id="meta-phase" style="font-size:0.82rem;color:var(--gold);font-family:'Source Code Pro',monospace;">--</span>
    <span id="meta-trial" style="font-size:0.78rem;color:var(--dim);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="metaProgressBar" style="width:0%"></div></div>
  <div id="metaStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div id="metaWord" style="font-size:2.5rem;font-family:'EB Garamond',serif;color:var(--gold);min-height:3.5rem;text-align:center;"></div>
    <div id="metaRecogRow" style="display:none;flex-direction:column;align-items:center;gap:8px;">
      <div style="font-size:0.82rem;color:var(--dim);">Did you see this word? F=OLD -- J=NEW</div>
      <div class="feedback" id="metaRecogFb"></div>
    </div>
    <div id="metaConfRow" style="display:none;flex-direction:column;align-items:center;gap:8px;">
      <div style="font-size:0.82rem;color:var(--dim);">Confidence: 1=guess -- 4=certain</div>
      <div style="display:flex;gap:12px;">
        <button class="intro-btn" onclick="metaConf(1)" style="padding:6px 16px;">1</button>
        <button class="intro-btn" onclick="metaConf(2)" style="padding:6px 16px;">2</button>
        <button class="intro-btn" onclick="metaConf(3)" style="padding:6px 16px;">3</button>
        <button class="intro-btn primary" onclick="metaConf(4)" style="padding:6px 16px;">4</button>
      </div>
    </div>
  </div>
  <div id="metaResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">METACOGNITION RESULTS</div><div class="vrt-metrics" id="metaMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="metaExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>

<div id="phq9Screen" class="task-screen" style="display:none;">
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">PHQ-9 DEPRESSION</span>
    <span id="phq9-score" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="phq9ProgressBar" style="width:0%"></div></div>
  <div id="phq9StimPhase" style="display:none;flex-direction:column;gap:0;width:100%;max-width:560px;overflow-y:auto;max-height:calc(100vh - 220px);">
    <div id="phq9Items"></div>
    <div style="display:flex;gap:10px;margin-top:12px;padding-bottom:16px;">
      <button class="intro-btn primary" onclick="phq9Finish()">SUBMIT</button>
      <button class="intro-btn" onclick="resetAll()">CANCEL</button>
    </div>
  </div>
  <div id="phq9ResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">PHQ-9 DEPRESSION RESULTS</div>
    <div class="vrt-metrics" id="phq9Metrics"></div>
    <div id="phq9Interpretation" style="margin-top:8px;font-size:0.85rem;color:var(--mid);line-height:1.7;max-width:460px;"></div>
    <div style="font-size:0.72rem;color:var(--dim);margin-top:8px;line-height:1.6;font-style:italic;">Screening tool only. Not a clinical diagnosis. Consult a qualified clinician.</div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="phq9ExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="gad7Screen" class="task-screen" style="display:none;">
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">GAD-7 ANXIETY</span>
    <span id="gad7-score" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="gad7ProgressBar" style="width:0%"></div></div>
  <div id="gad7StimPhase" style="display:none;flex-direction:column;gap:0;width:100%;max-width:560px;overflow-y:auto;max-height:calc(100vh - 220px);">
    <div id="gad7Items"></div>
    <div style="display:flex;gap:10px;margin-top:12px;padding-bottom:16px;">
      <button class="intro-btn primary" onclick="gad7Finish()">SUBMIT</button>
      <button class="intro-btn" onclick="resetAll()">CANCEL</button>
    </div>
  </div>
  <div id="gad7ResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">GAD-7 ANXIETY RESULTS</div>
    <div class="vrt-metrics" id="gad7Metrics"></div>
    <div id="gad7Interpretation" style="margin-top:8px;font-size:0.85rem;color:var(--mid);line-height:1.7;max-width:460px;"></div>
    <div style="font-size:0.72rem;color:var(--dim);margin-top:8px;line-height:1.6;font-style:italic;">Screening tool only. Not a clinical diagnosis. Consult a qualified clinician.</div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="gad7ExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="pcl5Screen" class="task-screen" style="display:none;">
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">PCL-5 PTSD</span>
    <span id="pcl5-score" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="pcl5ProgressBar" style="width:0%"></div></div>
  <div id="pcl5StimPhase" style="display:none;flex-direction:column;gap:0;width:100%;max-width:560px;overflow-y:auto;max-height:calc(100vh - 220px);">
    <div id="pcl5Items"></div>
    <div style="display:flex;gap:10px;margin-top:12px;padding-bottom:16px;">
      <button class="intro-btn primary" onclick="pcl5Finish()">SUBMIT</button>
      <button class="intro-btn" onclick="resetAll()">CANCEL</button>
    </div>
  </div>
  <div id="pcl5ResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">PCL-5 PTSD RESULTS</div>
    <div class="vrt-metrics" id="pcl5Metrics"></div>
    <div id="pcl5Interpretation" style="margin-top:8px;font-size:0.85rem;color:var(--mid);line-height:1.7;max-width:460px;"></div>
    <div style="font-size:0.72rem;color:var(--dim);margin-top:8px;line-height:1.6;font-style:italic;">Screening tool only. Not a clinical diagnosis. Consult a qualified clinician.</div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="pcl5ExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="auditScreen" class="task-screen" style="display:none;">
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">AUDIT ALCOHOL</span>
    <span id="audit-score" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="auditProgressBar" style="width:0%"></div></div>
  <div id="auditStimPhase" style="display:none;flex-direction:column;gap:0;width:100%;max-width:560px;overflow-y:auto;max-height:calc(100vh - 220px);">
    <div id="auditItems"></div>
    <div style="display:flex;gap:10px;margin-top:12px;padding-bottom:16px;">
      <button class="intro-btn primary" onclick="auditFinish()">SUBMIT</button>
      <button class="intro-btn" onclick="resetAll()">CANCEL</button>
    </div>
  </div>
  <div id="auditResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">AUDIT ALCOHOL RESULTS</div>
    <div class="vrt-metrics" id="auditMetrics"></div>
    <div id="auditInterpretation" style="margin-top:8px;font-size:0.85rem;color:var(--mid);line-height:1.7;max-width:460px;"></div>
    <div style="font-size:0.72rem;color:var(--dim);margin-top:8px;line-height:1.6;font-style:italic;">Screening tool only. Not a clinical diagnosis. Consult a qualified clinician.</div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="auditExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="asrsScreen" class="task-screen" style="display:none;">
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">ASRS ADHD</span>
    <span id="asrs-score" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="asrsProgressBar" style="width:0%"></div></div>
  <div id="asrsStimPhase" style="display:none;flex-direction:column;gap:0;width:100%;max-width:560px;overflow-y:auto;max-height:calc(100vh - 220px);">
    <div id="asrsItems"></div>
    <div style="display:flex;gap:10px;margin-top:12px;padding-bottom:16px;">
      <button class="intro-btn primary" onclick="asrsFinish()">SUBMIT</button>
      <button class="intro-btn" onclick="resetAll()">CANCEL</button>
    </div>
  </div>
  <div id="asrsResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">ASRS ADHD RESULTS</div>
    <div class="vrt-metrics" id="asrsMetrics"></div>
    <div id="asrsInterpretation" style="margin-top:8px;font-size:0.85rem;color:var(--mid);line-height:1.7;max-width:460px;"></div>
    <div style="font-size:0.72rem;color:var(--dim);margin-top:8px;line-height:1.6;font-style:italic;">Screening tool only. Not a clinical diagnosis. Consult a qualified clinician.</div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="asrsExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="hachinskiScreen" class="task-screen" style="display:none;">
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">HACHINSKI ISCHEMIC SCORE</span>
    <span id="hachinski-score" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="hachinskiProgressBar" style="width:0%"></div></div>
  <div id="hachinskiStimPhase" style="display:none;flex-direction:column;gap:0;width:100%;max-width:560px;overflow-y:auto;max-height:calc(100vh - 220px);">
    <div id="hachinskiItems"></div>
    <div style="display:flex;gap:10px;margin-top:12px;padding-bottom:16px;">
      <button class="intro-btn primary" onclick="hachinskiFinish()">SUBMIT</button>
      <button class="intro-btn" onclick="resetAll()">CANCEL</button>
    </div>
  </div>
  <div id="hachinskiResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">HACHINSKI ISCHEMIC SCORE — RESULTS</div>
    <div class="vrt-metrics" id="hachinskiMetrics"></div>
    <div id="hachinskiInterpretation" style="margin-top:8px;font-size:0.85rem;color:var(--mid);line-height:1.7;max-width:460px;"></div>
    <div style="font-size:0.72rem;color:var(--dim);margin-top:8px;line-height:1.6;font-style:italic;">Screening tool only — not a stand-alone diagnostic instrument. Interpret alongside neuroimaging, cognitive examination, and clinical assessment. Consult a qualified clinician.</div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="hachinskiExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="katzScreen" class="task-screen" style="display:none;">
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">KATZ INDEX — BASIC ADL</span>
    <span id="katz-score" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="katzProgressBar" style="width:0%"></div></div>
  <div id="katzStimPhase" style="display:none;flex-direction:column;gap:0;width:100%;max-width:560px;overflow-y:auto;max-height:calc(100vh - 220px);">
    <div id="katzItems"></div>
    <div style="display:flex;gap:10px;margin-top:12px;padding-bottom:16px;">
      <button class="intro-btn primary" onclick="katzFinish()">SUBMIT</button>
      <button class="intro-btn" onclick="resetAll()">CANCEL</button>
    </div>
  </div>
  <div id="katzResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">KATZ INDEX — BASIC ADL RESULTS</div>
    <div class="vrt-metrics" id="katzMetrics"></div>
    <div id="katzInterpretation" style="margin-top:8px;font-size:0.85rem;color:var(--mid);line-height:1.7;max-width:460px;"></div>
    <div style="font-size:0.72rem;color:var(--dim);margin-top:8px;line-height:1.6;font-style:italic;">Screening tool only. Pair with Lawton IADL for fuller functional picture. Consult a qualified clinician for diagnosis and care planning.</div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="katzExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="lawtonScreen" class="task-screen" style="display:none;">
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">LAWTON IADL</span>
    <span id="lawton-score" style="font-size:0.9rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="lawtonProgressBar" style="width:0%"></div></div>
  <div id="lawtonStimPhase" style="display:none;flex-direction:column;gap:0;width:100%;max-width:560px;overflow-y:auto;max-height:calc(100vh - 220px);">
    <div id="lawtonItems"></div>
    <div style="display:flex;gap:10px;margin-top:12px;padding-bottom:16px;">
      <button class="intro-btn primary" onclick="lawtonFinish()">SUBMIT</button>
      <button class="intro-btn" onclick="resetAll()">CANCEL</button>
    </div>
  </div>
  <div id="lawtonResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">LAWTON IADL — RESULTS</div>
    <div class="vrt-metrics" id="lawtonMetrics"></div>
    <div id="lawtonInterpretation" style="margin-top:8px;font-size:0.85rem;color:var(--mid);line-height:1.7;max-width:460px;"></div>
    <div style="font-size:0.72rem;color:var(--dim);margin-top:8px;line-height:1.6;font-style:italic;">Screening tool only. IADL decline often precedes basic ADL decline in dementia — consider cognitive workup. Consult a qualified clinician for diagnosis.</div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="lawtonExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="n1p2Screen" class="task-screen" style="display:none;">
  <div id="n1p2PracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">N1-P2 AUDITORY ERP</span>
    <span id="n1p2-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="n1p2-hits" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="n1p2ProgressBar" style="width:0%"></div></div>
  <div id="n1p2StimPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;">
    <div id="n1p2Tone" style="width:80px;height:80px;border-radius:50%;border:2px solid #1a2f44;background:#060d14;display:flex;align-items:center;justify-content:center;font-size:1.8rem;transition:background 0.05s;"></div>
    <div id="n1p2Instruct" style="font-size:0.82rem;color:var(--dim);text-align:center;"></div>
    <div class="feedback" id="n1p2Feedback"></div>
    <div class="key-hint">SPACE = count target tones (higher pitch)</div>
  </div>
  <div id="n1p2ResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">N1-P2 RESULTS</div>
    <div class="vrt-metrics" id="n1p2Metrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="n1p2ExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="ronScreen" class="task-screen" style="display:none;">
  <div id="ronPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">REORIENTING NEGATIVITY (RON)</span>
    <span id="ron-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="ron-hits" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="ronProgressBar" style="width:0%"></div></div>
  <div id="ronStimPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;">
    <div id="ronTone" style="width:80px;height:80px;border-radius:50%;border:2px solid #1a2f44;background:#060d14;display:flex;align-items:center;justify-content:center;font-size:1.6rem;transition:background 0.05s;"></div>
    <div id="ronInstruct" style="font-size:0.82rem;color:var(--dim);text-align:center;max-width:340px;"></div>
    <div class="feedback" id="ronFeedback"></div>
    <div class="key-hint">SPACE = count target tones · ignore distractors</div>
  </div>
  <div id="ronResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">RON RESULTS</div>
    <div class="vrt-metrics" id="ronMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="ronExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="lanScreen" class="task-screen" style="display:none;">
  <div id="lanPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">LEFT ANTERIOR NEGATIVITY (LAN)</span>
    <span id="lan-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="lan-acc" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="lanProgressBar" style="width:0%"></div></div>
  <div id="lanStimPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;">
    <div id="lanSentence" style="font-size:1.35rem;font-family:'EB Garamond',serif;color:var(--gold);text-align:center;min-height:2rem;max-width:420px;line-height:1.6;"></div>
    <div id="lanInstruct" style="font-size:0.82rem;color:var(--dim);">Is this sentence grammatically correct?</div>
    <div class="feedback" id="lanFeedback"></div>
    <div class="key-hint">Y = grammatically correct &nbsp;·&nbsp; N = error</div>
  </div>
  <div id="lanResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">LAN RESULTS</div>
    <div class="vrt-metrics" id="lanMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="lanExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="cpsScreen" class="task-screen" style="display:none;">
  <div id="cpsPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">CLOSURE POSITIVE SHIFT (CPS)</span>
    <span id="cps-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="cps-acc" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="cpsProgressBar" style="width:0%"></div></div>
  <div id="cpsStimPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;">
    <div id="cpsSentence" style="font-size:1.25rem;font-family:'EB Garamond',serif;color:var(--gold);text-align:center;min-height:2.2rem;max-width:440px;line-height:1.7;"></div>
    <div style="font-size:0.8rem;color:var(--dim);text-align:center;">/ = intonation phrase boundary</div>
    <div id="cpsInstruct" style="font-size:0.82rem;color:var(--dim);">Does this phrasing sound natural?</div>
    <div class="feedback" id="cpsFeedback"></div>
    <div class="key-hint">Passive — just listen. Sentences advance automatically; no response needed.</div>
  </div>
  <div id="cpsResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">CPS RESULTS</div>
    <div class="vrt-metrics" id="cpsMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="cpsExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="n2bScreen" class="task-screen" style="display:none;">
  <div id="n2bPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">N2b TARGET ERP</span>
    <span id="n2b-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="n2b-hits" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="n2bProgressBar" style="width:0%"></div></div>
  <div id="n2bStimPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;">
    <div id="n2bLetter" style="font-size:5rem;font-family:'Source Code Pro',monospace;color:var(--gold);min-height:7rem;display:flex;align-items:center;justify-content:center;"></div>
    <div class="feedback" id="n2bFeedback"></div>
    <div class="key-hint">SPACE = press for X only · ignore all other letters</div>
  </div>
  <div id="n2bResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">N2b RESULTS</div>
    <div class="vrt-metrics" id="n2bMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="n2bExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="pdScreen" class="task-screen" style="display:none;">
  <div id="pdPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">Pd DISTRACTOR SUPPRESSION</span>
    <span id="pd-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="pd-acc" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="pdProgressBar" style="width:0%"></div></div>
  <div id="pdStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <canvas id="pdCanvas" width="300" height="200" style="border:1px solid #1a2f44;background:#060d14;border-radius:3px;"></canvas>
    <div id="pdInstruct" style="font-size:0.82rem;color:var(--dim);text-align:center;">Find the unique shape — is it tilted left or right?</div>
    <div class="feedback" id="pdFeedback"></div>
    <div class="key-hint">F = tilted left &nbsp;·&nbsp; J = tilted right</div>
  </div>
  <div id="pdResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">Pd RESULTS</div>
    <div class="vrt-metrics" id="pdMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="pdExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="eranScreen" class="task-screen" style="display:none;">
  <div id="eranPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">ERAN — MUSIC SYNTAX</span>
    <span id="eran-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="eran-acc" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="eranProgressBar" style="width:0%"></div></div>
  <div id="eranStimPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;">
    <div id="eranChords" style="display:flex;gap:10px;align-items:flex-end;min-height:60px;"></div>
    <div id="eranInstruct" style="font-size:0.82rem;color:var(--dim);text-align:center;">Does the final chord fit the sequence?</div>
    <div class="feedback" id="eranFeedback"></div>
    <div class="key-hint">Y = chord fits &nbsp;·&nbsp; N = sounds out of place</div>
  </div>
  <div id="eranResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">ERAN RESULTS</div>
    <div class="vrt-metrics" id="eranMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="eranExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="lpcScreen" class="task-screen" style="display:none;">
  <div id="lpcPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">LPC — EPISODIC RECOGNITION</span>
    <span id="lpc-phase" style="font-size:0.82rem;color:var(--gold);font-family:'Source Code Pro',monospace;">--</span>
    <span id="lpc-trial" style="font-size:0.78rem;color:var(--dim);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="lpcProgressBar" style="width:0%"></div></div>
  <div id="lpcStimPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <div id="lpcWord" style="font-size:2.5rem;font-family:'EB Garamond',serif;color:var(--gold);min-height:3.5rem;text-align:center;"></div>
    <div id="lpcInstruct" style="font-size:0.82rem;color:var(--dim);"></div>
    <div class="feedback" id="lpcFeedback"></div>
    <div class="key-hint" id="lpcHint"></div>
  </div>
  <div id="lpcResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">LPC RESULTS</div>
    <div class="vrt-metrics" id="lpcMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="lpcExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="frnScreen" class="task-screen" style="display:none;">
  <div id="frnPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">FEEDBACK-RELATED NEGATIVITY</span>
    <span id="frn-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="frn-score" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="frnProgressBar" style="width:0%"></div></div>
  <div id="frnStimPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;">
    <div id="frnChoice" style="display:flex;gap:20px;"></div>
    <div id="frnFeedback" class="feedback" style="font-size:1.5rem;min-height:2rem;"></div>
    <div id="frnInstruct" style="font-size:0.82rem;color:var(--dim);text-align:center;"></div>
    <div class="key-hint">F = LEFT option &nbsp;·&nbsp; J = RIGHT option</div>
  </div>
  <div id="frnResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">FRN RESULTS</div>
    <div class="vrt-metrics" id="frnMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="frnExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="cdaScreen" class="task-screen" style="display:none;">
  <div id="cdaPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">CONTRALATERAL DELAY ACTIVITY</span>
    <span id="cda-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="cda-acc" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="cdaProgressBar" style="width:0%"></div></div>
  <div id="cdaStimPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <canvas id="cdaCanvas" width="320" height="160" style="border:1px solid #1a2f44;background:#060d14;border-radius:3px;"></canvas>
    <div id="cdaInstruct" style="font-size:0.82rem;color:var(--dim);text-align:center;"></div>
    <div class="feedback" id="cdaFeedback"></div>
    <div class="key-hint" id="cdaHint"></div>
  </div>
  <div id="cdaResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">CDA RESULTS</div>
    <div class="vrt-metrics" id="cdaMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="cdaExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="ldaepScreen" class="task-screen" style="display:none;">
  <div id="ldaepPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">LDAEP — LOUDNESS DEPENDENCE</span>
    <span id="ldaep-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="ldaep-level" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="ldaepProgressBar" style="width:0%"></div></div>
  <div id="ldaepStimPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;">
    <div style="display:flex;gap:8px;align-items:flex-end;min-height:60px;">
      <div id="ldaepBar1" style="width:16px;background:rgba(212,180,86,0.2);border:1px solid #1a2f44;border-radius:2px 2px 0 0;"></div>
      <div id="ldaepBar2" style="width:16px;background:rgba(212,180,86,0.2);border:1px solid #1a2f44;border-radius:2px 2px 0 0;"></div>
      <div id="ldaepBar3" style="width:16px;background:rgba(212,180,86,0.2);border:1px solid #1a2f44;border-radius:2px 2px 0 0;"></div>
      <div id="ldaepBar4" style="width:16px;background:rgba(212,180,86,0.2);border:1px solid #1a2f44;border-radius:2px 2px 0 0;"></div>
      <div id="ldaepBar5" style="width:16px;background:rgba(212,180,86,0.2);border:1px solid #1a2f44;border-radius:2px 2px 0 0;"></div>
    </div>
    <div id="ldaepTone" style="width:60px;height:60px;border-radius:50%;border:2px solid #1a2f44;background:#060d14;display:flex;align-items:center;justify-content:center;font-size:1.4rem;transition:all 0.05s;"></div>
    <div id="ldaepInstruct" style="font-size:0.82rem;color:var(--dim);text-align:center;">Listen passively — no response needed</div>
    <div class="feedback" id="ldaepFeedback"></div>
  </div>
  <div id="ldaepResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">LDAEP RESULTS</div>
    <div class="vrt-metrics" id="ldaepMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="ldaepExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="c1Screen" class="task-screen" style="display:none;">
  <div id="c1PracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">C1 — FIRST CORTICAL VISUAL RESPONSE</span>
    <span id="c1-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="c1-hits" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="c1ProgressBar" style="width:0%"></div></div>
  <div id="c1StimPhase" style="display:none;flex-direction:column;align-items:center;gap:6px;">
    <canvas id="c1Canvas" width="340" height="220" style="border:1px solid #1a2f44;background:#060d14;border-radius:3px;"></canvas>
    <div id="c1Instruct" style="font-size:0.82rem;color:var(--dim);text-align:center;">Fixate the cross — press SPACE for dimmer targets</div>
    <div class="feedback" id="c1Feedback"></div>
    <div class="key-hint">SPACE = dimmer target patch · ignore bright standards</div>
  </div>
  <div id="c1ResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">C1 RESULTS</div>
    <div class="vrt-metrics" id="c1Metrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="c1ExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="pmnScreen" class="task-screen" style="display:none;">
  <div id="pmnPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">PHONOLOGICAL MISMATCH NEGATIVITY</span>
    <span id="pmn-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="pmn-acc" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="pmnProgressBar" style="width:0%"></div></div>
  <div id="pmnStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div id="pmnStem" style="font-size:1.1rem;font-family:'EB Garamond',serif;color:var(--mid);text-align:center;min-height:1.6rem;max-width:420px;"></div>
    <div id="pmnTarget" style="font-size:1.8rem;font-family:'EB Garamond',serif;color:var(--gold);min-height:2.4rem;text-align:center;letter-spacing:0.05em;"></div>
    <div id="pmnPhonHint" style="font-size:0.76rem;font-family:'Source Code Pro',monospace;color:rgba(212,180,86,0.4);min-height:1rem;text-align:center;"></div>
    <div class="feedback" id="pmnFeedback"></div>
    <div class="key-hint">Passive — just listen. Word pairs advance automatically; no response needed.</div>
  </div>
  <div id="pmnResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">PMN RESULTS</div>
    <div class="vrt-metrics" id="pmnMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="pmnExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="vppScreen" class="task-screen" style="display:none;">
  <div id="vppPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">VERTEX POSITIVE POTENTIAL (VPP)</span>
    <span id="vpp-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="vpp-acc" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="vppProgressBar" style="width:0%"></div></div>
  <div id="vppStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <canvas id="vppCanvas" width="200" height="200" style="border:1px solid #1a2f44;background:#060d14;border-radius:3px;"></canvas>
    <div id="vppInstruct" style="font-size:0.82rem;color:var(--dim);">Face or object?</div>
    <div class="feedback" id="vppFeedback"></div>
    <div class="key-hint">F = face &nbsp;·&nbsp; J = object</div>
  </div>
  <div id="vppResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">VPP RESULTS</div>
    <div class="vrt-metrics" id="vppMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="vppExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="peScreen" class="task-screen" style="display:none;">
  <div id="pePracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">Pe — ERROR POSITIVITY</span>
    <span id="pe-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="pe-errors" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="peProgressBar" style="width:0%"></div></div>
  <div id="peStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <div id="peFlanker" style="font-size:2.4rem;font-family:'Source Code Pro',monospace;color:var(--gold);min-height:3.2rem;letter-spacing:0.1em;display:flex;align-items:center;justify-content:center;"></div>
    <div id="peAwareness" style="display:none;font-size:0.82rem;color:var(--dim);text-align:center;">Did you notice making an error?</div>
    <div class="feedback" id="peFeedback"></div>
    <div class="key-hint" id="peHint">F = LEFT arrow &nbsp;·&nbsp; J = RIGHT arrow · respond fast</div>
  </div>
  <div id="peResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">Pe RESULTS</div>
    <div class="vrt-metrics" id="peMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="peExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="ornScreen" class="task-screen" style="display:none;">
  <div id="ornPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">OBJECT-RELATED NEGATIVITY (ORN)</span>
    <span id="orn-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="orn-acc" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="ornProgressBar" style="width:0%"></div></div>
  <div id="ornStimPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <div id="ornViz" style="display:flex;gap:18px;align-items:center;justify-content:center;min-height:52px;"></div>
    <div id="ornInstruct" style="font-size:0.82rem;color:var(--dim);text-align:center;">One fused sound or two separate sounds?</div>
    <div class="feedback" id="ornFeedback"></div>
    <div class="key-hint">Passive — just listen. Stimuli advance automatically; no response needed.</div>
  </div>
  <div id="ornResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">ORN RESULTS</div>
    <div class="vrt-metrics" id="ornMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="ornExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<div id="mfnScreen" class="task-screen" style="display:none;">
  <div id="mfnPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:20px;align-items:center;margin-bottom:8px;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">MEDIAL FRONTAL NEGATIVITY (MFN)</span>
    <span id="mfn-trial" style="font-size:0.82rem;color:var(--dim);">--</span>
    <span id="mfn-acc" style="font-size:0.82rem;font-family:'Source Code Pro',monospace;color:var(--gold);">--</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="mfnProgressBar" style="width:0%"></div></div>
  <div id="mfnStimPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <div id="mfnWord" style="font-size:2.8rem;font-family:'Source Code Pro',monospace;min-height:4rem;display:flex;align-items:center;justify-content:center;letter-spacing:0.05em;"></div>
    <div id="mfnInstruct" style="font-size:0.82rem;color:var(--dim);">Name the INK COLOUR (not the word)</div>
    <div class="feedback" id="mfnFeedback"></div>
    <div class="key-hint">F = RED ink &nbsp;·&nbsp; J = BLUE ink</div>
  </div>
  <div id="mfnResultsPhase" style="display:none;"><div class="vrt-results-wrap">
    <div class="vrt-results-title">MFN RESULTS</div>
    <div class="vrt-metrics" id="mfnMetrics"></div>
    <div style="display:flex;gap:12px;margin-top:10px;">
      <button class="intro-btn primary" onclick="resetAll()">HOME</button>
      <button class="intro-btn" onclick="mfnExportCSV()">EXPORT CSV</button>
    </div></div></div>
</div>
<script>
/* ── Stagger animation indices for task tiles. Sets a CSS custom property
      --i on each tile so the .task-select-grid .task-tile { animation-delay:
      calc(var(--i)*30ms) } rule produces a wave-in effect on first paint.
      Indices reset per grid so each section animates independently. */
(function staggerTileEntrance(){
  function apply() {
    document.querySelectorAll('.task-select-grid').forEach(function(grid){
      var tiles = grid.querySelectorAll('.task-tile');
      tiles.forEach(function(tile, i){
        tile.style.setProperty('--i', i);
      });
    });
  }
  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', apply);
  } else {
    apply();
  }
})();
</script>

<!-- ═══════════════════════════════════════════════════════════════════════
     DUAL-SCREEN MODULE (R13)
     ─────────────────────────────────────────────────────────────────────
     The MAIN window stays the EXPERIMENTER view — full COGNOS UI:
       · sidebar with controls + live status
       · photocell trigger square in the corner
       · everything the experimenter needs

     A second window pops out as the SUBJECT view — clean stimulus only:
       · live mirror of the .main stimulus area
       · no sidebar, no controls, no photocell
       · canvas content mirrored via data URLs each frame

     Monitor handling:
       0 extra monitors → regular popup, drag/F11 to position
       1 extra monitor  → auto-placed on second monitor, fullscreen
       2+ monitors      → picker

     The task code itself runs unchanged in the main window; the subject
     window is a passive mirror. Audio plays from the main computer.
     ═══════════════════════════════════════════════════════════════════ -->
<script>
// ── Subject-view results suppression ────────────────────────────────────
// Removes every results phase, practice summary, stats/history overlay, and
// metrics/feedback node from a CLONED .main subtree before it is shown to the
// participant in the dual-monitor subject window. The participant sees STIMULI
// ONLY; the experimenter's own window is never touched. If a results/summary
// screen was the visible content (checked against the live document), a neutral
// "• • •" hold screen replaces it so the subject sees a calm between-block view
// rather than a blank flash. Returns true if anything visible was stripped.
// Extracted as a global so the harness can verify it without opening a popup.
function cognosStripResultsForSubject(clone, liveDoc){
  if(!clone || !clone.querySelectorAll) return false;
  var SEL='[id$="ResultsPhase"], #practiceComplete, #statsScreen, #resultsHistoryScreen, '+
          '.vrt-results-wrap, .vrt-metrics, [id$="Metrics"], .feedback, #pcStats';
  var stripped=false;
  clone.querySelectorAll(SEL).forEach(function(el){
    var vis=false;
    try{ vis = !!(el.style && el.style.display && el.style.display!=='none'); }catch(e){}
    // Was the SOURCE element actually on-screen? (so we only show the hold
    // screen when the subject would genuinely have seen results)
    try{
      var srcEl = (el.id && liveDoc && liveDoc.getElementById) ? liveDoc.getElementById(el.id) : null;
      if(srcEl && srcEl.offsetParent!==null) vis=true;
    }catch(e){}
    if(vis) stripped=true;
    if(el.parentNode) el.parentNode.removeChild(el);
  });
  if(stripped){
    try{
      var msg=(clone.ownerDocument||document).createElement('div');
      msg.className='cognos-subject-hold';
      msg.setAttribute('style','position:fixed;inset:0;display:flex;align-items:center;'+
        'justify-content:center;background:#060d14;color:#3a5470;'+
        'font-family:\'Source Code Pro\',monospace;font-size:1.1rem;letter-spacing:0.2em;z-index:9;');
      msg.textContent='• • •';
      clone.appendChild(msg);
    }catch(e){}
  }
  return stripped;
}
</script>
<script>
(function(){
  'use strict';

  // ─── State ─────────────────────────────────────────────────────────
  const DS = {
    enabled:    false,   // dual-screen mode active
    subWin:     null,    // popped-out subject window
    bc:         null,    // BroadcastChannel for fallback messaging
    rafId:      null,    // requestAnimationFrame id
    mo:         null,    // MutationObserver on .main
    dirty:      true,    // does the subject window need updating?
    screens:    null,    // cached ScreenDetails
    lastFlash:  0,       // perf timer of last triggerFlash (for sub mirror)
    flashUntil: 0,       // when current flash ends
    stylesSent: false,   // have we shipped the CSS yet?
  };

  // ─── Sidebar button injection ──────────────────────────────────────
  function injectDualScreenButton(){
    const tpSection = document.querySelector('.tp-section');
    if (!tpSection) { setTimeout(injectDualScreenButton, 200); return; }
    if (document.getElementById('ds-btn')) return;

    const wrap = document.createElement('div');
    wrap.style.cssText = 'display:flex;flex-direction:column;gap:6px;padding:10px 0 0 0;';
    wrap.innerHTML = `
      <div class="tp-section-title" title="Open a separate clean subject window. Subject sees stimuli only; experimenter (this window) keeps full controls. With multiple monitors, auto-placed on the second screen.">⬢ Dual Screen</div>
      <div class="tp-row">
        <span class="tp-label">SUBJECT WIN</span>
        <button class="tp-toggle" id="ds-btn" onclick="window.cognosToggleDualScreen()"
                title="Open subject window. Auto-positioned on second monitor if available; otherwise drag/F11.">OPEN</button>
      </div>
      <div class="tp-flash-note" id="ds-note" style="font-size:0.78rem;">
        Subject window mirrors stimuli.<br>
        Experimenter keeps controls here.
      </div>
      <hr class="sep" style="margin-top:6px;">
    `;
    tpSection.parentNode.insertBefore(wrap, tpSection);
  }

  window.cognosToggleDualScreen = async function(){
    if (DS.enabled) closeSubjectWindow();
    else await openSubjectWindow();
  };

  // ─── Multi-monitor detection ───────────────────────────────────────
  async function detectScreens(){
    if (!window.getScreenDetails) return null;
    try {
      if (!DS.screens) DS.screens = await window.getScreenDetails();
      const sd = DS.screens;
      const all = sd.screens || [];
      const current = sd.currentScreen;
      const others = all.filter(s => s !== current);
      return { all, current, others };
    } catch(e){
      console.warn('Screen detection unavailable:', e.message);
      return null;
    }
  }

  function pickMonitor(others){
    return new Promise(resolve => {
      const overlay = document.createElement('div');
      overlay.style.cssText = `position:fixed;inset:0;background:rgba(6,13,20,0.92);z-index:99999;display:flex;align-items:center;justify-content:center;font-family:'Source Code Pro',monospace;color:#eaf4ff;`;
      const card = document.createElement('div');
      card.style.cssText = `background:#0c1824;border:1px solid #d4b456;padding:28px 32px;max-width:560px;display:flex;flex-direction:column;gap:14px;`;
      card.innerHTML = `
        <div style="font-family:'EB Garamond',serif;font-size:1.3rem;color:#d4b456;letter-spacing:0.2em;">CHOOSE SUBJECT MONITOR</div>
        <div style="font-size:0.78rem;color:#8ab4d0;line-height:1.5;">${others.length} external monitors detected. Choose which one the subject will see.</div>
        <div id="ds-pick-list" style="display:flex;flex-direction:column;gap:8px;margin-top:6px;"></div>
        <button id="ds-pick-cancel" style="margin-top:6px;padding:8px;background:none;border:1px solid #2a4060;color:#8ab4d0;cursor:pointer;font-family:inherit;letter-spacing:0.1em;font-size:0.8rem;">CANCEL</button>
      `;
      overlay.appendChild(card);
      document.body.appendChild(overlay);
      const list = card.querySelector('#ds-pick-list');
      others.forEach((s, i) => {
        const btn = document.createElement('button');
        btn.style.cssText = `padding:12px 14px;background:#0a1620;border:1px solid #1a2f44;color:#eaf4ff;cursor:pointer;font-family:inherit;text-align:left;display:flex;justify-content:space-between;align-items:center;`;
        btn.onmouseenter = () => btn.style.borderColor = '#d4b456';
        btn.onmouseleave = () => btn.style.borderColor = '#1a2f44';
        const label = s.label || ('Display ' + (i+1));
        const dims = s.width + ' × ' + s.height + (s.isPrimary ? ' · PRIMARY' : '');
        btn.innerHTML = `<span style="font-size:0.92rem;color:#d4b456;">${escapeHTML(label)}</span><span style="font-size:0.75rem;color:#8ab4d0;letter-spacing:0.08em;">${dims}</span>`;
        btn.onclick = () => { document.body.removeChild(overlay); resolve(s); };
        list.appendChild(btn);
      });
      card.querySelector('#ds-pick-cancel').onclick = () => { document.body.removeChild(overlay); resolve(null); };
    });
  }

  function escapeHTML(s){ return String(s).replace(/[&<>"']/g, c => ({'&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;',"'":'&#39;'}[c])); }

  // ─── Open subject window ───────────────────────────────────────────
  async function openSubjectWindow(){
    const det = await detectScreens();
    let target = null;
    if (det && det.others.length === 1) {
      target = det.others[0];
    } else if (det && det.others.length >= 2) {
      target = await pickMonitor(det.others);
      if (!target) return;
    }

    let features;
    if (target) {
      features = `popup=yes,left=${target.availLeft},top=${target.availTop},width=${target.availWidth},height=${target.availHeight},menubar=no,toolbar=no,location=no,status=no`;
    } else {
      features = 'popup=yes,width=900,height=700,menubar=no,toolbar=no,location=no,status=no';
    }

    try {
      DS.subWin = window.open('about:blank', 'cognosSubject_'+Date.now(), features);
    } catch(e){
      alert('Could not open subject window: '+e.message);
      return;
    }
    if (!DS.subWin) {
      alert('Popup blocked!\n\nAllow popups for this page, then click OPEN again.');
      return;
    }

    writeSubjectHTML(DS.subWin, !!target);

    DS.enabled = true;
    DS.dirty = true;
    DS.stylesSent = false;
    updateButton(target);
    startMirrorLoop();
    installMutationObserver();
    hookTriggerFlashForSubject();

    if (target) {
      setTimeout(() => {
        try {
          if (DS.subWin && DS.subWin.document && DS.subWin.document.documentElement) {
            const el = DS.subWin.document.documentElement;
            if (el.requestFullscreen) el.requestFullscreen().catch(()=>{});
          }
        } catch(e){}
      }, 800);
    }
  }

  function closeSubjectWindow(){
    if (DS.subWin && !DS.subWin.closed) {
      try { DS.subWin.close(); } catch(e){}
    }
    DS.subWin = null;
    DS.enabled = false;
    stopMirrorLoop();
    if (DS.mo) { DS.mo.disconnect(); DS.mo = null; }
    updateButton(null);
  }

  function updateButton(target){
    const btn = document.getElementById('ds-btn');
    const note = document.getElementById('ds-note');
    if (!btn) return;
    if (DS.enabled) {
      btn.textContent = 'CLOSE';
      btn.classList.add('active');
      if (note) {
        if (target) {
          const label = (target.label || 'External display').slice(0, 24);
          note.innerHTML = `<span style="color:#5edc9e">● Subject on:</span><br><span style="color:#d4b456">${escapeHTML(label)}</span><br>${target.width}×${target.height}`;
        } else {
          note.innerHTML = '<span style="color:#5edc9e">● Subject window open</span><br>Drag to subject monitor<br>or F11 to fullscreen.';
        }
      }
    } else {
      btn.textContent = 'OPEN';
      btn.classList.remove('active');
      if (note) note.innerHTML = 'Subject window mirrors stimuli.<br>Experimenter keeps controls here.';
    }
  }

  // ─── Mirror loop ────────────────────────────────────────────────────
  // Snapshots .main once per animation frame when dirty. Canvas pixels
  // are extracted via toDataURL since innerHTML doesn't carry canvas
  // contents.
  function startMirrorLoop(){
    if (DS.rafId) return;
    const tick = () => {
      DS.rafId = requestAnimationFrame(tick);
      if (!DS.enabled) return;
      if (DS.subWin && DS.subWin.closed) { closeSubjectWindow(); return; }
      if (!DS.dirty) return;
      DS.dirty = false;
      pushFrame();
    };
    DS.rafId = requestAnimationFrame(tick);
  }
  function stopMirrorLoop(){
    if (DS.rafId) { cancelAnimationFrame(DS.rafId); DS.rafId = null; }
  }

  // MutationObserver marks dirty whenever .main changes.
  // We also force-dirty every 100ms as a safety net for canvas redraws
  // that don't change the DOM, plus on every triggerFlash.
  function installMutationObserver(){
    const main = document.querySelector('.main');
    if (!main) { setTimeout(installMutationObserver, 200); return; }
    if (DS.mo) DS.mo.disconnect();
    DS.mo = new MutationObserver(() => { DS.dirty = true; });
    DS.mo.observe(main, {
      childList: true, subtree: true, attributes: true, characterData: true,
    });
    // Safety-net poller for canvas updates
    setInterval(() => { if (DS.enabled) DS.dirty = true; }, 100);
  }

  // ─── Push one frame to the subject window ──────────────────────────
  function pushFrame(){
    if (!DS.subWin || DS.subWin.closed) return;
    let subDoc;
    try { subDoc = DS.subWin.document; } catch(e){ return; }
    if (!subDoc || !subDoc.getElementById) return;
    const stage = subDoc.getElementById('subject-stage');
    if (!stage) return;

    const src = document.querySelector('.main');
    if (!src) return;

    // First-time setup: ship the styles to the subject window
    if (!DS.stylesSent) {
      shipStyles(subDoc);
      DS.stylesSent = true;
    }

    // Clone .main, then replace canvases with <img> snapshots
    const clone = src.cloneNode(true);
    // Remove the photocell trigger square — subject doesn't see it
    const trig = clone.querySelector('#trigger-bar');
    if (trig) trig.remove();
    // Remove the dual-screen injected wrapper (sidebar isn't cloned, but
    // just in case anything leaked through)
    clone.querySelectorAll('#ds-btn').forEach(el => el.remove());

    // Map of source canvases by id (and by index for unnamed ones)
    const srcCanvases = src.querySelectorAll('canvas');
    const cloneCanvases = clone.querySelectorAll('canvas');
    for (let i = 0; i < srcCanvases.length && i < cloneCanvases.length; i++) {
      const sc = srcCanvases[i];
      const cc = cloneCanvases[i];
      // Skip if canvas is hidden / zero-size
      if (!sc.width || !sc.height) continue;
      try {
        const url = sc.toDataURL();
        const img = subDoc.createElement('img');
        img.src = url;
        img.width = sc.width;
        img.height = sc.height;
        // Carry over inline styles so layout matches
        if (sc.style && sc.style.cssText) img.style.cssText = sc.style.cssText;
        // Carry over width/height from CSS-computed dims too
        const r = sc.getBoundingClientRect();
        if (r.width && r.height) {
          img.style.width = r.width + 'px';
          img.style.height = r.height + 'px';
        }
        if (cc.parentNode) cc.parentNode.replaceChild(img, cc);
      } catch(e){
        // toDataURL throws on tainted canvas (e.g., cross-origin image
        // drawn in); leave the empty clone canvas in place
      }
    }

    // ── Subject must NEVER see results, scores, or feedback ──────────────
    // Strip results/metrics/feedback from the mirrored clone (done AFTER canvas
    // mapping so src/clone canvas indices stayed aligned). Extracted into a
    // global helper so the harness can verify the behaviour directly.
    cognosStripResultsForSubject(clone, document);

    // Replace stage contents — wholesale swap is fine because we
    // re-clone every frame
    stage.innerHTML = '';
    stage.appendChild(clone);
  }

  // ─── Ship the current page's stylesheets to the subject window ──────
  function shipStyles(subDoc){
    // Inline all <style> tags and copy <link rel=stylesheet> href into
    // the subject document head, so layout matches.
    const head = subDoc.head || subDoc.querySelector('head');
    if (!head) return;
    document.querySelectorAll('style').forEach(s => {
      const copy = subDoc.createElement('style');
      copy.textContent = s.textContent;
      head.appendChild(copy);
    });
    document.querySelectorAll('link[rel="stylesheet"]').forEach(l => {
      const copy = subDoc.createElement('link');
      copy.rel = 'stylesheet';
      copy.href = l.href;
      head.appendChild(copy);
    });
    // Also pull in any @font-face imports already loaded
    document.querySelectorAll('link[rel="preconnect"], link[href*="fonts.googleapis"]').forEach(l => {
      const copy = subDoc.createElement('link');
      for (const a of l.attributes) copy.setAttribute(a.name, a.value);
      head.appendChild(copy);
    });
  }

  // ─── Hook triggerFlash so subject mirror knows when to refresh ──────
  function hookTriggerFlashForSubject(){
    if (typeof window.triggerFlash !== 'function') {
      setTimeout(hookTriggerFlashForSubject, 200);
      return;
    }
    if (window.triggerFlash._cognosDualHooked) return;
    const original = window.triggerFlash;
    window.triggerFlash = function(){
      original.apply(this, arguments);
      if (DS.enabled) DS.dirty = true;
    };
    window.triggerFlash._cognosDualHooked = true;
  }

  window.addEventListener('beforeunload', () => {
    if (DS.subWin && !DS.subWin.closed) {
      try { DS.subWin.close(); } catch(e){}
    }
  });

  // ─── Subject window HTML ────────────────────────────────────────────
  // Self-contained document. No COGNOS task code runs here — it's
  // purely a passive mirror.
  function writeSubjectHTML(win, isFullScreen){
    const html = `<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>COGNOS · Subject</title>
<style>
*{box-sizing:border-box;margin:0;padding:0;}
html,body{height:100%;}
body{
  background:#111f2c;color:#eaf4ff;
  font-family:'Source Code Pro',monospace;
  height:100vh;overflow:hidden;margin:0;
}
/* The subject stage holds the cloned .main element. The cloned .main
   already has its own background and layout from the inherited CSS,
   so we just give the stage a full-window box to fill. */
#subject-stage{
  width:100vw;height:100vh;display:block;position:relative;overflow:hidden;
  background:#111f2c;
}
/* Make the cloned .main fill the stage. Override the original
   flex:1 from the sidebar layout, since here it has no sibling. */
#subject-stage > .main{
  width:100% !important;
  height:100% !important;
  flex:none !important;
}
/* Hide the dual-screen "no signal yet" placeholder once first frame arrives */
#subject-stage:not(:empty) + #ds-placeholder{display:none;}
#ds-placeholder{
  position:absolute;inset:0;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:18px;
  background:#111f2c;color:#8ab4d0;font-family:'Source Code Pro',monospace;
  letter-spacing:0.15em;font-size:0.9rem;text-align:center;line-height:1.7;
  pointer-events:none;
}
#ds-placeholder .pulse{
  width:14px;height:14px;border-radius:50%;background:#d4b456;
  animation:dsPulse 1.4s ease-in-out infinite;
}
@keyframes dsPulse{0%,100%{opacity:0.3;transform:scale(0.8);}50%{opacity:1;transform:scale(1.1);}}
.fs-hint{position:fixed;bottom:8px;right:12px;font-size:0.62rem;color:#3a5a74;letter-spacing:0.12em;pointer-events:none;}
</style>
</head>
<body>
<div id="subject-stage"></div>
<div id="ds-placeholder">
  <div class="pulse"></div>
  <div>COGNOS · SUBJECT</div>
  <div style="font-size:0.7rem;color:#5a7a96;">waiting for stimuli...</div>
</div>
${isFullScreen ? '' : '<div class="fs-hint">F11 for fullscreen</div>'}
<script>
(function(){
  'use strict';
  // Hide placeholder once stage has content
  var obs = new MutationObserver(function(){
    var s = document.getElementById('subject-stage');
    var p = document.getElementById('ds-placeholder');
    if (s && s.children.length > 0 && p) p.style.display = 'none';
  });
  obs.observe(document.getElementById('subject-stage'), {childList:true});
})();
<\/script>
</body>
</html>`;
    win.document.open();
    win.document.write(html);
    win.document.close();
  }

  // ─── Init ───────────────────────────────────────────────────────────
  function init(){
    injectDualScreenButton();
    hookTriggerFlashForSubject();
  }

  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', init);
  } else {
    init();
  }
})();
</script>

<!-- ──────────────────────────────────────────────────────────────────────
     CUSTOM AUDIO MODULE (R12) — load Adobe Audition / any WAV files into
     stimulus slots; persists across sessions via IndexedDB; plays in
     place of synthesized tones for P300 (extensible to other tasks).
     ──────────────────────────────────────────────────────────────── -->
<style>
#customAudioModal{position:fixed;top:0;left:0;width:100%;height:100%;
  background:rgba(8,12,20,0.85);z-index:9000;display:none;
  align-items:center;justify-content:center;font-family:'EB Garamond',serif;}
#customAudioModal.open{display:flex;}
#customAudioModal .ca-panel{background:#0d1622;border:1px solid rgba(200,168,75,0.4);
  border-radius:6px;padding:28px 32px;max-width:640px;width:90%;
  max-height:88vh;overflow-y:auto;
  box-shadow:0 8px 40px rgba(0,0,0,0.6);}
#customAudioModal .ca-section-title{color:var(--gold);font-size:0.78rem;
  letter-spacing:0.18em;margin:18px 0 8px 0;font-family:'Source Code Pro',monospace;
  padding-bottom:4px;border-bottom:1px solid rgba(200,168,75,0.15);}
#customAudioModal .ca-section-title:first-of-type{margin-top:6px;}
#customAudioModal .ca-title{color:var(--gold);font-size:1.15rem;
  letter-spacing:0.18em;margin-bottom:6px;font-family:'EB Garamond',serif;}
#customAudioModal .ca-sub{color:var(--dim);font-size:0.78rem;
  font-family:'Source Code Pro',monospace;margin-bottom:18px;letter-spacing:0.04em;}
#customAudioModal .ca-slot{border:1px dashed rgba(200,168,75,0.35);
  border-radius:4px;padding:14px;margin-bottom:14px;
  background:rgba(20,28,40,0.4);transition:all 0.15s ease;}
#customAudioModal .ca-slot.dragover{border-color:var(--gold);
  background:rgba(212,165,32,0.08);border-style:solid;}
#customAudioModal .ca-slot.loaded{border-style:solid;
  border-color:rgba(200,168,75,0.55);}
#customAudioModal .ca-slot-label{color:var(--gold);font-size:0.82rem;
  letter-spacing:0.15em;font-family:'Source Code Pro',monospace;
  margin-bottom:6px;}
#customAudioModal .ca-slot-info{color:var(--mid);font-size:0.78rem;
  font-family:'Source Code Pro',monospace;margin-bottom:8px;min-height:1em;}
#customAudioModal .ca-slot-info.empty{color:var(--dim);font-style:italic;}
#customAudioModal .ca-slot-actions{display:flex;gap:8px;flex-wrap:wrap;}
#customAudioModal .ca-btn{background:transparent;border:1px solid rgba(200,168,75,0.4);
  color:var(--gold);padding:4px 12px;font-size:0.75rem;cursor:pointer;
  font-family:'Source Code Pro',monospace;letter-spacing:0.06em;border-radius:3px;
  transition:all 0.12s;}
#customAudioModal .ca-btn:hover{background:rgba(212,165,32,0.12);}
#customAudioModal .ca-btn.danger{border-color:rgba(200,100,80,0.5);color:#d88;}
#customAudioModal .ca-btn.danger:hover{background:rgba(200,80,80,0.12);}
#customAudioModal .ca-footer{display:flex;justify-content:space-between;
  align-items:center;margin-top:18px;}
#customAudioModal .ca-close{background:transparent;border:1px solid rgba(180,180,180,0.3);
  color:var(--mid);padding:6px 18px;font-size:0.78rem;cursor:pointer;
  font-family:'Source Code Pro',monospace;letter-spacing:0.1em;border-radius:3px;}
#customAudioModal .ca-close:hover{color:var(--gold);border-color:var(--gold);}
#customAudioModal .ca-hint{color:var(--dim);font-size:0.72rem;
  font-family:'Source Code Pro',monospace;}
#customAudioTile.has-audio{border-color:rgba(212,165,32,0.7) !important;}
#customAudioTile.has-audio .task-icon{color:var(--gold) !important;}
#customAudioSidebarBtn.has-audio{
  background:rgba(212,165,32,0.08) !important;
  border-color:rgba(212,165,32,0.85) !important;
  color:var(--gold) !important;
}
</style>

<div id="customAudioModal" onclick="if(event.target===this)CustomAudio.closePanel()">
  <div class="ca-panel">
    <div class="ca-title">CUSTOM AUDIO</div>
    <div class="ca-sub">drop WAV / MP3 / OGG files into a slot · plays in place of synthesized tones · persists across sessions</div>

    <div class="ca-section-title">P300 — AUDITORY ODDBALL</div>
    <div class="ca-slot" id="caSlot-p300-standard" data-slot="p300-standard">
      <div class="ca-slot-label">STANDARD (frequent)</div>
      <div class="ca-slot-info empty" id="caInfo-p300-standard">no file — using synth at P300.stdFreq Hz</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('p300-standard')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('p300-standard')" id="caTest-p300-standard" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('p300-standard')" id="caClear-p300-standard" style="display:none">✕ Clear</button>
      </div>
    </div>
    <div class="ca-slot" id="caSlot-p300-oddball" data-slot="p300-oddball">
      <div class="ca-slot-label">ODDBALL (rare target)</div>
      <div class="ca-slot-info empty" id="caInfo-p300-oddball">no file — using synth at P300.oddFreq Hz</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('p300-oddball')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('p300-oddball')" id="caTest-p300-oddball" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('p300-oddball')" id="caClear-p300-oddball" style="display:none">✕ Clear</button>
      </div>
    </div>

    <div class="ca-section-title">MMN — MISMATCH NEGATIVITY</div>
    <div class="ca-slot" id="caSlot-mmn-standard" data-slot="mmn-standard">
      <div class="ca-slot-label">STANDARD (80%)</div>
      <div class="ca-slot-info empty" id="caInfo-mmn-standard">no file — using 1000 Hz synth</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('mmn-standard')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('mmn-standard')" id="caTest-mmn-standard" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('mmn-standard')" id="caClear-mmn-standard" style="display:none">✕ Clear</button>
      </div>
    </div>
    <div class="ca-slot" id="caSlot-mmn-deviant" data-slot="mmn-deviant">
      <div class="ca-slot-label">DEVIANT (20%)</div>
      <div class="ca-slot-info empty" id="caInfo-mmn-deviant">no file — using 1200 Hz synth</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('mmn-deviant')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('mmn-deviant')" id="caTest-mmn-deviant" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('mmn-deviant')" id="caClear-mmn-deviant" style="display:none">✕ Clear</button>
      </div>
    </div>

    <div class="ca-section-title">P3A — NOVELTY ODDBALL</div>
    <div class="ca-slot" id="caSlot-p3a-standard" data-slot="p3a-standard">
      <div class="ca-slot-label">STANDARD (80%)</div>
      <div class="ca-slot-info empty" id="caInfo-p3a-standard">no file — using 440 Hz synth</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('p3a-standard')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('p3a-standard')" id="caTest-p3a-standard" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('p3a-standard')" id="caClear-p3a-standard" style="display:none">✕ Clear</button>
      </div>
    </div>
    <div class="ca-slot" id="caSlot-p3a-target" data-slot="p3a-target">
      <div class="ca-slot-label">TARGET (10%)</div>
      <div class="ca-slot-info empty" id="caInfo-p3a-target">no file — using 880 Hz synth</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('p3a-target')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('p3a-target')" id="caTest-p3a-target" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('p3a-target')" id="caClear-p3a-target" style="display:none">✕ Clear</button>
      </div>
    </div>
    <div class="ca-slot" id="caSlot-p3a-novel" data-slot="p3a-novel">
      <div class="ca-slot-label">NOVEL (10%)</div>
      <div class="ca-slot-info empty" id="caInfo-p3a-novel">no file — using 660 Hz synth</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('p3a-novel')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('p3a-novel')" id="caTest-p3a-novel" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('p3a-novel')" id="caClear-p3a-novel" style="display:none">✕ Clear</button>
      </div>
    </div>

    <div class="ca-section-title">N100 / P200 — AUDITORY EVOKED POTENTIAL</div>
    <div class="ca-slot" id="caSlot-n100-tone" data-slot="n100-tone">
      <div class="ca-slot-label">TONE / CLICK</div>
      <div class="ca-slot-info empty" id="caInfo-n100-tone">no file — using synth 1ms click</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('n100-tone')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('n100-tone')" id="caTest-n100-tone" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('n100-tone')" id="caClear-n100-tone" style="display:none">✕ Clear</button>
      </div>
    </div>

    <div class="ca-section-title">P50 — SENSORY GATING</div>
    <div class="ca-slot" id="caSlot-p50-click" data-slot="p50-click">
      <div class="ca-slot-label">CLICK (used for both S1 and S2)</div>
      <div class="ca-slot-info empty" id="caInfo-p50-click">no file — using synth 2ms click</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('p50-click')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('p50-click')" id="caTest-p50-click" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('p50-click')" id="caClear-p50-click" style="display:none">✕ Clear</button>
      </div>
    </div>

    <div class="ca-section-title">ABR — AUDITORY BRAINSTEM RESPONSE</div>
    <div class="ca-slot" id="caSlot-abr-click" data-slot="abr-click">
      <div class="ca-slot-label">CLICK (fires ~11/sec — use a very short clip)</div>
      <div class="ca-slot-info empty" id="caInfo-abr-click">no file — using synth 0.1ms click</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('abr-click')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('abr-click')" id="caTest-abr-click" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('abr-click')" id="caClear-abr-click" style="display:none">✕ Clear</button>
      </div>
    </div>

    <div class="ca-section-title">ASSR — 40 Hz STEADY STATE</div>
    <div class="ca-slot" id="caSlot-assr-tone" data-slot="assr-tone">
      <div class="ca-slot-label">PRE-MODULATED TONE (bake the 40 Hz AM in Audition)</div>
      <div class="ca-slot-info empty" id="caInfo-assr-tone">no file — using synth 1000 Hz × 40 Hz AM</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('assr-tone')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('assr-tone')" id="caTest-assr-tone" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('assr-tone')" id="caClear-assr-tone" style="display:none">✕ Clear</button>
      </div>
    </div>

    <div class="ca-section-title">STOP SIGNAL</div>
    <div class="ca-slot" id="caSlot-stop-signal" data-slot="stop-signal">
      <div class="ca-slot-label">STOP TONE</div>
      <div class="ca-slot-info empty" id="caInfo-stop-signal">no file — using 800 Hz synth</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('stop-signal')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('stop-signal')" id="caTest-stop-signal" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('stop-signal')" id="caClear-stop-signal" style="display:none">✕ Clear</button>
      </div>
    </div>

    <div class="ca-section-title">ORN — OBJECT-RELATED NEGATIVITY</div>
    <div class="ca-slot" id="caSlot-orn-standard" data-slot="orn-standard">
      <div class="ca-slot-label">FUSED (in-tune harmonic — one auditory object)</div>
      <div class="ca-slot-info empty" id="caInfo-orn-standard">no file — using synth 440 + 660 Hz harmonic dyad</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('orn-standard')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('orn-standard')" id="caTest-orn-standard" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('orn-standard')" id="caClear-orn-standard" style="display:none">✕ Clear</button>
      </div>
    </div>
    <div class="ca-slot" id="caSlot-orn-deviant" data-slot="orn-deviant">
      <div class="ca-slot-label">MISTUNED (segregated — two perceived objects)</div>
      <div class="ca-slot-info empty" id="caInfo-orn-deviant">no file — using synth 440 + 687 Hz (4% mistuned)</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('orn-deviant')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('orn-deviant')" id="caTest-orn-deviant" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('orn-deviant')" id="caClear-orn-deviant" style="display:none">✕ Clear</button>
      </div>
    </div>

    <div class="ca-section-title">MMN-SPEECH — SYLLABLE CONTRAST</div>
    <div class="ca-slot" id="caSlot-mmnspeech-standard" data-slot="mmnspeech-standard">
      <div class="ca-slot-label">STANDARD (short VOT — typically /ba/)</div>
      <div class="ca-slot-info empty" id="caInfo-mmnspeech-standard">no file — using 20ms VOT synth /ba/</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('mmnspeech-standard')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('mmnspeech-standard')" id="caTest-mmnspeech-standard" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('mmnspeech-standard')" id="caClear-mmnspeech-standard" style="display:none">✕ Clear</button>
      </div>
    </div>
    <div class="ca-slot" id="caSlot-mmnspeech-deviant" data-slot="mmnspeech-deviant">
      <div class="ca-slot-label">DEVIANT (long VOT — typically /pa/)</div>
      <div class="ca-slot-info empty" id="caInfo-mmnspeech-deviant">no file — using 80ms VOT synth /pa/</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('mmnspeech-deviant')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('mmnspeech-deviant')" id="caTest-mmnspeech-deviant" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('mmnspeech-deviant')" id="caClear-mmnspeech-deviant" style="display:none">✕ Clear</button>
      </div>
    </div>

    <div class="ca-section-title">LDAEP — LOUDNESS DEPENDENT AEP</div>
    <div class="ca-slot" id="caSlot-ldaep-tone" data-slot="ldaep-tone">
      <div class="ca-slot-label">TONE (cognos scales gain across 5 intensities)</div>
      <div class="ca-slot-info empty" id="caInfo-ldaep-tone">no file — using 1000 Hz synth (5 intensities applied in code)</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="CustomAudio.pickFile('ldaep-tone')">⤴ Load File</button>
        <button class="ca-btn" onclick="CustomAudio.testPlay('ldaep-tone')" id="caTest-ldaep-tone" style="display:none">▶ Test</button>
        <button class="ca-btn danger" onclick="CustomAudio.clear('ldaep-tone')" id="caClear-ldaep-tone" style="display:none">✕ Clear</button>
      </div>
    </div>

    <div class="ca-section-title">SPR-A — SERIAL PROBE RECOGNITION (AUDITORY)</div>
    <div class="ca-slot" id="caSlot-spra-pool">
      <div class="ca-slot-label">SPR-A POOL (multi-file · load ≥8 distinct sounds)</div>
      <div class="ca-slot-info empty" id="caSpraPoolInfo">no sounds — SPR-A task will refuse to start until at least 8 sounds are loaded</div>
      <div class="ca-slot-actions">
        <button class="ca-btn" onclick="(function(){var i=document.createElement('input');i.type='file';i.multiple=true;i.accept='audio/*';i.onchange=function(){CustomAudio.addSpraFiles(i.files);};i.click();})()">⤴ Load Files</button>
        <button class="ca-btn danger" onclick="if(confirm('Clear all sounds from the SPR-A pool?'))CustomAudio.clearSpraPool()" id="caSpraPoolClear" style="display:none">✕ Clear Pool</button>
      </div>
    </div>

    <div class="ca-footer">
      <div class="ca-hint">files stored in browser IndexedDB</div>
      <button class="ca-close" onclick="CustomAudio.closePanel()">CLOSE</button>
    </div>
  </div>
</div>

<script>
(function(){
  // ── Slot registry (R12 full): defines which slots exist and what
  // their empty-state message is so we can render the modal generically.
  var ALL_SLOTS = [
    'p300-standard', 'p300-oddball',
    'mmn-standard', 'mmn-deviant',
    'p3a-standard', 'p3a-target', 'p3a-novel',
    'n100-tone',
    'p50-click',
    'abr-click',
    'assr-tone',
    'stop-signal',
    'orn-standard', 'orn-deviant',
    'mmnspeech-standard', 'mmnspeech-deviant',
    'ldaep-tone'
  ];
  var EMPTY_MSG = {
    'p300-standard': 'no file — using synth at P300.stdFreq Hz',
    'p300-oddball':  'no file — using synth at P300.oddFreq Hz',
    'mmn-standard':  'no file — using 1000 Hz synth',
    'mmn-deviant':   'no file — using 1200 Hz synth',
    'p3a-standard':  'no file — using 440 Hz synth',
    'p3a-target':    'no file — using 880 Hz synth',
    'p3a-novel':     'no file — using 660 Hz synth',
    'n100-tone':     'no file — using synth 1ms click',
    'p50-click':     'no file — using synth 2ms click',
    'abr-click':     'no file — using synth 0.1ms click',
    'assr-tone':     'no file — using synth 1000 Hz × 40 Hz AM',
    'stop-signal':   'no file — using 800 Hz synth',
    'orn-standard':  'no file — using synth 440 + 660 Hz harmonic dyad',
    'orn-deviant':   'no file — using synth 440 + 687 Hz (4% mistuned)',
    'mmnspeech-standard': 'no file — using 20ms VOT synth /ba/',
    'mmnspeech-deviant':  'no file — using 80ms VOT synth /pa/',
    'ldaep-tone':    'no file — using 1000 Hz synth (5 intensities applied in code)'
  };

  // ── IndexedDB layer ─────────────────────────────────────────────
  var DB_NAME = 'cognos-custom-audio';
  var STORE   = 'slots';
  var _dbPromise = null;
  function _openDb(){
    if (_dbPromise) return _dbPromise;
    _dbPromise = new Promise(function(resolve, reject){
      var req = indexedDB.open(DB_NAME, 1);
      req.onupgradeneeded = function(){
        req.result.createObjectStore(STORE);
      };
      req.onsuccess = function(){ resolve(req.result); };
      req.onerror   = function(){ reject(req.error); };
    });
    return _dbPromise;
  }
  function _idbGet(slot){
    return _openDb().then(function(db){
      return new Promise(function(resolve, reject){
        var tx = db.transaction(STORE, 'readonly');
        var req = tx.objectStore(STORE).get(slot);
        req.onsuccess = function(){ resolve(req.result || null); };
        req.onerror   = function(){ reject(req.error); };
      });
    });
  }
  function _idbPut(slot, payload){
    return _openDb().then(function(db){
      return new Promise(function(resolve, reject){
        var tx = db.transaction(STORE, 'readwrite');
        tx.objectStore(STORE).put(payload, slot);
        tx.oncomplete = function(){ resolve(); };
        tx.onerror    = function(){ reject(tx.error); };
      });
    });
  }
  function _idbDel(slot){
    return _openDb().then(function(db){
      return new Promise(function(resolve, reject){
        var tx = db.transaction(STORE, 'readwrite');
        tx.objectStore(STORE).delete(slot);
        tx.oncomplete = function(){ resolve(); };
        tx.onerror    = function(){ reject(tx.error); };
      });
    });
  }
  function _idbAllKeys(){
    return _openDb().then(function(db){
      return new Promise(function(resolve, reject){
        var tx = db.transaction(STORE, 'readonly');
        var req = tx.objectStore(STORE).getAllKeys();
        req.onsuccess = function(){ resolve(req.result || []); };
        req.onerror   = function(){ reject(req.error); };
      });
    });
  }

  // ── Audio cache (decoded AudioBuffers, keyed by slot) ──────────
  var _actx   = null;
  var _slots  = {};   // slot -> { name, size, buffer (AudioBuffer), durationSec, channels, sampleRate }
  var _spraPool = [];  // [{name, arrayBuffer, buffer, duration}, ...] — R12 SPR-A
  function _getCtx(){
    if (_actx) return _actx;
    try { _actx = new (window.AudioContext||window.webkitAudioContext)(); }
    catch(e){ console.error('AudioContext unavailable', e); }
    return _actx;
  }
  function _decode(arrayBuffer){
    var ctx = _getCtx();
    if (!ctx) return Promise.reject(new Error('no AudioContext'));
    return new Promise(function(resolve, reject){
      // Use callback form for Safari compatibility; both fulfilled in modern browsers
      try {
        var p = ctx.decodeAudioData(arrayBuffer.slice(0), resolve, reject);
        if (p && typeof p.then === 'function') p.then(resolve, reject);
      } catch(e){ reject(e); }
    });
  }

  // ── Hydrate cache from IndexedDB on boot ────────────────────────
  function _hydrate(){
    return _idbAllKeys().then(function(keys){
      return Promise.all(keys.map(function(key){
        if (key === '__spra_pool__') return _hydrateSpraPool();
        return _idbGet(key).then(function(payload){
          if (!payload || !payload.arrayBuffer) return;
          return _decode(payload.arrayBuffer).then(function(buf){
            _slots[key] = {
              name: payload.name, size: payload.size,
              buffer: buf, durationSec: buf.duration,
              channels: buf.numberOfChannels, sampleRate: buf.sampleRate
            };
          }).catch(function(e){
            console.warn('decode failed for slot ' + key, e);
          });
        });
      }));
    }).catch(function(e){
      console.warn('CustomAudio hydrate failed', e);
    });
  }
  function _hydrateSpraPool(){
    return _idbGet('__spra_pool__').then(function(payload){
      if (!payload || !payload.items) return;
      // payload.items = [{name, arrayBuffer}, ...]
      return Promise.all(payload.items.map(function(it){
        return _decode(it.arrayBuffer).then(function(buf){
          return { name: it.name, arrayBuffer: it.arrayBuffer, buffer: buf, duration: buf.duration };
        }).catch(function(e){
          console.warn('decode failed for SPR-A pool item ' + it.name, e);
          return null;
        });
      })).then(function(loaded){
        _spraPool = loaded.filter(function(x){ return x; });
      });
    }).catch(function(){});
  }
  function _persistSpraPool(){
    return _idbPut('__spra_pool__', {
      items: _spraPool.map(function(it){ return { name: it.name, arrayBuffer: it.arrayBuffer }; })
    });
  }
  function _refreshSpraPoolUI(){
    var info = document.getElementById('caSpraPoolInfo');
    var clr  = document.getElementById('caSpraPoolClear');
    var box  = document.getElementById('caSlot-spra-pool');
    if (!info) return;
    if (_spraPool.length > 0) {
      info.className = 'ca-slot-info';
      var totalDur = _spraPool.reduce(function(s, it){ return s + it.duration; }, 0);
      info.textContent = _spraPool.length + ' sound' + (_spraPool.length===1?'':'s') +
                         ' · total ' + totalDur.toFixed(1) + 's · ready for SPR-A';
      if (clr) clr.style.display = 'inline-block';
      if (box) box.classList.add('loaded');
    } else {
      info.className = 'ca-slot-info empty';
      info.textContent = 'no sounds — SPR-A task will refuse to start until at least 8 sounds are loaded';
      if (clr) clr.style.display = 'none';
      if (box) box.classList.remove('loaded');
    }
  }

  // ── UI helpers ─────────────────────────────────────────────────
  function _fmtDur(sec){
    if (sec < 1) return (sec*1000).toFixed(0) + ' ms';
    return sec.toFixed(2) + ' s';
  }
  function _fmtSize(bytes){
    if (bytes < 1024) return bytes + ' B';
    if (bytes < 1048576) return (bytes/1024).toFixed(1) + ' KB';
    return (bytes/1048576).toFixed(2) + ' MB';
  }
  function _refreshSlotUI(slot){
    var info  = document.getElementById('caInfo-' + slot);
    var test  = document.getElementById('caTest-' + slot);
    var clr   = document.getElementById('caClear-' + slot);
    var box   = document.getElementById('caSlot-' + slot);
    if (!info) return;
    var s = _slots[slot];
    if (s) {
      info.className = 'ca-slot-info';
      info.textContent = s.name + '  ·  ' + _fmtDur(s.durationSec) +
                         '  ·  ' + s.channels + 'ch  ·  ' +
                         s.sampleRate + ' Hz  ·  ' + _fmtSize(s.size);
      if (test) test.style.display = 'inline-block';
      if (clr)  clr.style.display  = 'inline-block';
      if (box)  box.classList.add('loaded');
    } else {
      info.className = 'ca-slot-info empty';
      info.textContent = EMPTY_MSG[slot] || 'no file loaded';
      if (test) test.style.display = 'none';
      if (clr)  clr.style.display  = 'none';
      if (box)  box.classList.remove('loaded');
    }
    _refreshMenuTile();
  }
  function _refreshMenuTile(){
    var hasAny = Object.keys(_slots).length > 0;
    var tile = document.getElementById('customAudioTile');
    if (tile) {
      if (hasAny) tile.classList.add('has-audio');
      else tile.classList.remove('has-audio');
    }
    var sbtn = document.getElementById('customAudioSidebarBtn');
    if (sbtn) {
      if (hasAny) sbtn.classList.add('has-audio');
      else sbtn.classList.remove('has-audio');
    }
  }

  // ── File loading (from file input or drag/drop) ────────────────
  function _loadFile(slot, file){
    if (!file) return Promise.resolve();
    return file.arrayBuffer().then(function(ab){
      return _decode(ab).then(function(buf){
        _slots[slot] = {
          name: file.name, size: file.size,
          buffer: buf, durationSec: buf.duration,
          channels: buf.numberOfChannels, sampleRate: buf.sampleRate
        };
        return _idbPut(slot, {
          name: file.name, size: file.size,
          arrayBuffer: ab
        });
      });
    }).then(function(){
      _refreshSlotUI(slot);
    }).catch(function(e){
      alert('Could not load "' + file.name + '" — ' + (e.message || e));
    });
  }

  // ── Drag-drop wiring ───────────────────────────────────────────
  function _wireDropZones(){
    ALL_SLOTS.forEach(function(slot){
      var box = document.getElementById('caSlot-' + slot);
      if (!box) return;
      box.addEventListener('dragenter', function(e){
        e.preventDefault(); box.classList.add('dragover');
      });
      box.addEventListener('dragover', function(e){
        e.preventDefault(); box.classList.add('dragover');
      });
      box.addEventListener('dragleave', function(e){
        if (e.target === box) box.classList.remove('dragover');
      });
      box.addEventListener('drop', function(e){
        e.preventDefault(); box.classList.remove('dragover');
        var f = e.dataTransfer && e.dataTransfer.files && e.dataTransfer.files[0];
        if (f) _loadFile(slot, f);
      });
    });
  }

  // ── Public API ─────────────────────────────────────────────────
  window.CustomAudio = {
    openPanel: function(){
      var m = document.getElementById('customAudioModal');
      if (m) m.classList.add('open');
      // Resume AudioContext on user gesture so test-play works
      var ctx = _getCtx();
      if (ctx && ctx.state === 'suspended') ctx.resume();
      ALL_SLOTS.forEach(_refreshSlotUI);
      _refreshSpraPoolUI();
    },
    closePanel: function(){
      var m = document.getElementById('customAudioModal');
      if (m) m.classList.remove('open');
    },
    pickFile: function(slot){
      var inp = document.createElement('input');
      inp.type = 'file';
      inp.accept = 'audio/*,.wav,.mp3,.ogg,.flac,.aiff,.aif,.m4a';
      inp.onchange = function(){
        var f = inp.files && inp.files[0];
        if (f) _loadFile(slot, f);
      };
      inp.click();
    },
    testPlay: function(slot){
      this.tryPlay(slot, 0.5);
    },
    clear: function(slot){
      delete _slots[slot];
      _idbDel(slot).catch(function(){});
      _refreshSlotUI(slot);
    },
    // Returns true if a custom file was played, false otherwise (caller
    // should then synthesize). gain is applied via a gain node so it
    // mirrors the synth-path loudness.
    tryPlay: function(slot, gain){
      var s = _slots[slot];
      if (!s || !s.buffer) return false;
      var ctx = _getCtx();
      if (!ctx) return false;
      if (ctx.state === 'suspended') ctx.resume();
      try {
        var src = ctx.createBufferSource();
        src.buffer = s.buffer;
        var g = ctx.createGain();
        g.gain.value = (typeof gain === 'number') ? gain : 0.4;
        src.connect(g); g.connect(ctx.destination);
        src.start(0);
        return true;
      } catch(e){
        console.warn('CustomAudio playback failed for ' + slot, e);
        return false;
      }
    },
    // Like tryPlay but returns a handle {stop()} so caller can cut off
    // playback before the buffer ends. Used for ASSR's 3-sec blocks
    // where the file is the carrier and we want to stop it on schedule.
    // Returns null if no file is loaded (caller should fall back).
    tryPlayBounded: function(slot, gain, maxMs){
      var s = _slots[slot];
      if (!s || !s.buffer) return null;
      var ctx = _getCtx();
      if (!ctx) return null;
      if (ctx.state === 'suspended') ctx.resume();
      try {
        var src = ctx.createBufferSource();
        src.buffer = s.buffer;
        // Loop the file so a short carrier still fills the full ASSR block
        src.loop = true;
        var g = ctx.createGain();
        g.gain.value = (typeof gain === 'number') ? gain : 0.4;
        src.connect(g); g.connect(ctx.destination);
        var now = ctx.currentTime;
        src.start(now);
        if (maxMs && maxMs > 0) {
          src.stop(now + maxMs / 1000);
        }
        return {
          stop: function(){ try { src.stop(); } catch(_){} }
        };
      } catch(e){
        console.warn('CustomAudio bounded playback failed for ' + slot, e);
        return null;
      }
    },
    // Short label for sidebars/displays — first 18 chars of filename
    slotLabel: function(slot){
      var s = _slots[slot];
      if (!s) return null;
      var nm = s.name || 'custom';
      // strip extension for brevity
      nm = nm.replace(/\.[^.]+$/, '');
      if (nm.length > 18) nm = nm.slice(0, 16) + '…';
      return nm;
    },
    // Introspection
    hasFile: function(slot){ return !!_slots[slot]; },
    listSlots: function(){ return Object.keys(_slots); },

    // ── SPR-A POOL (multi-file pool, distinct from named slots) ──
    // Used by the auditory Serial Probe Recognition task. Stored under
    // a single IndexedDB key '__spra_pool__' as an array of ArrayBuffers.
    getSpraPool: function(){ return _spraPool.slice(); },
    spraPoolSize: function(){ return _spraPool.length; },
    addSpraFiles: function(files){
      if (!files || !files.length) return Promise.resolve();
      var arr = Array.from(files);
      return Promise.all(arr.map(function(f){
        return f.arrayBuffer().then(function(ab){
          return _decode(ab).then(function(buf){
            return { name: f.name, arrayBuffer: ab, buffer: buf, duration: buf.duration };
          });
        });
      })).then(function(loaded){
        loaded.forEach(function(it){ _spraPool.push(it); });
        return _persistSpraPool();
      }).then(function(){
        _refreshSpraPoolUI();
      });
    },
    clearSpraPool: function(){
      _spraPool = [];
      return _idbDel('__spra_pool__').then(function(){ _refreshSpraPoolUI(); }).catch(function(){});
    },
    // Direct playback of an arbitrary AudioBuffer (used by SPR-A task to
    // play list items and probes without a slot-name lookup).
    playBuffer: function(buf, gain){
      var ctx = _getCtx();
      if (!ctx || !buf) return false;
      if (ctx.state === 'suspended') ctx.resume();
      try {
        var src = ctx.createBufferSource();
        src.buffer = buf;
        var g = ctx.createGain();
        g.gain.value = (typeof gain === 'number') ? gain : 0.4;
        src.connect(g); g.connect(ctx.destination);
        src.start(0);
        return true;
      } catch(e){ return false; }
    },
  };

  // ── Boot ───────────────────────────────────────────────────────
  function _init(){
    _wireDropZones();
    _wireSpraPoolDrop();
    _hydrate().then(function(){
      ALL_SLOTS.forEach(_refreshSlotUI);
      _refreshSpraPoolUI();
    });
  }
  function _wireSpraPoolDrop(){
    var box = document.getElementById('caSlot-spra-pool');
    if (!box) return;
    box.addEventListener('dragenter', function(e){ e.preventDefault(); box.classList.add('dragover'); });
    box.addEventListener('dragover',  function(e){ e.preventDefault(); box.classList.add('dragover'); });
    box.addEventListener('dragleave', function(e){ if (e.target === box) box.classList.remove('dragover'); });
    box.addEventListener('drop', function(e){
      e.preventDefault(); box.classList.remove('dragover');
      var fs = e.dataTransfer && e.dataTransfer.files;
      if (fs && fs.length) window.CustomAudio.addSpraFiles(fs);
    });
  }
  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', _init);
  } else {
    _init();
  }
})();
</script>

<!-- ──────────────────────────────────────────────────────────────────────
     SERIAL PROBE RECOGNITION (SPR / SPR-A) — R12
     Sands & Wright, Science 209:938 (1980); JEP:ABP 6:386 (1980)

     A study list of N trial-unique items is presented sequentially.
     After a retention interval a single probe appears; subject judges
     whether the probe was in the list. With trial-unique stimuli the
     serial position function shows classic primacy + recency.

     Two variants:
       SPR   — visual; procedural shape stimuli by default, optional
               user-loaded image pool via CustomImages module.
       SPR-A — auditory; requires user-loaded sound pool via the
               CustomAudio module's SPR-A pool slot.

     Defaults match the published paradigm: list lengths 10 then 20;
     1-sec item presentation; 1-sec retention; equal sampling of
     all serial positions plus an equal number of foil (non-list)
     probes. Responses: F (or left mouse) = YES; J (or right mouse) = NO.
     ─────────────────────────────────────────────────────────────── -->

<style>
.spr-screen{display:none;flex-direction:column;align-items:center;justify-content:flex-start;
  gap:18px;padding:40px;width:100%;min-height:100%;font-family:'EB Garamond',serif;}
.spr-screen.active{display:flex;}
.spr-header{display:flex;gap:24px;align-items:center;}
.spr-task-label{color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;
  font-family:'EB Garamond',serif;}
.spr-meta{font-size:0.75rem;letter-spacing:0.15em;color:var(--dim);
  font-family:'Source Code Pro',monospace;}
.spr-arena{display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;min-height:340px;}
.spr-phase-label{font-size:0.78rem;letter-spacing:0.2em;color:var(--gold);
  font-family:'Source Code Pro',monospace;text-transform:uppercase;}
.spr-phase-label.study{color:rgba(212,180,86,0.75);}
.spr-phase-label.retention{color:var(--dim);}
.spr-phase-label.probe{color:var(--text);}
.spr-stim-box{width:280px;height:280px;display:flex;align-items:center;justify-content:center;
  background:#060d14;border:2px solid rgba(212,180,86,0.35);border-radius:6px;}
.spr-stim-box.probe-active{border-color:rgba(212,180,86,0.85);
  box-shadow:0 0 24px rgba(212,180,86,0.18);}
.spr-stim-box img{max-width:96%;max-height:96%;object-fit:contain;}
.spr-stim-box svg{width:96%;height:96%;}
.spra-audio-stim{display:flex;flex-direction:column;align-items:center;gap:14px;}
.spra-pulse{width:80px;height:80px;border-radius:50%;background:rgba(212,180,86,0.18);
  border:2px solid rgba(212,180,86,0.65);display:flex;align-items:center;justify-content:center;
  font-size:1.8rem;color:var(--gold);animation:spraPulse 0.6s ease-in-out infinite alternate;}
@keyframes spraPulse{from{transform:scale(1);opacity:0.7;}to{transform:scale(1.12);opacity:1;}}
.spr-resp-row{display:flex;gap:24px;margin-top:18px;}
.spr-resp-btn{background:#0d1622;border:1.5px solid rgba(200,168,75,0.55);color:var(--gold);
  font-family:'Source Code Pro',monospace;letter-spacing:0.12em;padding:14px 32px;
  font-size:0.95rem;cursor:pointer;border-radius:4px;transition:all 0.12s ease;}
.spr-resp-btn:hover{background:rgba(212,165,32,0.14);border-color:var(--gold);}
.spr-resp-btn.yes{border-color:rgba(120,200,140,0.55);color:#9cdaa8;}
.spr-resp-btn.yes:hover{background:rgba(120,200,140,0.12);border-color:#9cdaa8;}
.spr-resp-btn.no{border-color:rgba(220,120,120,0.55);color:#e09a9a;}
.spr-resp-btn.no:hover{background:rgba(220,120,120,0.12);border-color:#e09a9a;}
.spr-noassets-msg{color:var(--dim);font-size:0.85rem;text-align:center;max-width:420px;
  line-height:1.5;padding:24px;border:1px dashed rgba(200,168,75,0.3);border-radius:4px;}
</style>

<div id="sprScreen" class="task-screen spr-screen">
  <div class="practice-banner" id="sprPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div class="spr-header">
    <span class="spr-task-label">SERIAL PROBE RECOGNITION</span>
    <span id="spr-trial" class="spr-meta">—</span>
    <span id="spr-phase" class="spr-meta">—</span>
    <span id="spr-listlen" class="spr-meta">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="sprProgressBar" style="width:0%"></div></div>

  <div id="sprStudyPhase" style="display:none">
    <div class="spr-arena">
      <div class="spr-phase-label study" id="sprStudyLabel">STUDY · ITEM 1</div>
      <div class="spr-stim-box" id="sprStudyStim"></div>
    </div>
  </div>

  <div id="sprRetentionPhase" style="display:none">
    <div class="spr-arena">
      <div class="spr-phase-label retention">RETENTION</div>
      <div class="spr-stim-box" style="border-style:dashed;border-color:rgba(200,168,75,0.2);">
        <span style="font-size:3rem;color:var(--dim);">+</span>
      </div>
    </div>
  </div>

  <div id="sprProbePhase" style="display:none">
    <div class="spr-arena">
      <div class="spr-phase-label probe">WAS THIS IN THE LIST?</div>
      <div class="spr-stim-box probe-active" id="sprProbeStim"></div>
      <div class="spr-resp-row">
        <button class="spr-resp-btn yes" onclick="sprRespond(true)">YES (F / ← click)</button>
        <button class="spr-resp-btn no" onclick="sprRespond(false)">NO (J / → click)</button>
      </div>
      <div class="feedback" id="sprFeedback"></div>
    </div>
  </div>

  <div id="sprResultsPhase" style="display:none">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">SERIAL PROBE RECOGNITION — RESULTS</div>
      <div class="vrt-metrics" id="sprMetrics"></div>
      <div style="width:100%;max-width:540px;margin:14px 0 4px 0;">
        <div style="font-size:0.75rem;color:var(--dim);letter-spacing:0.12em;margin-bottom:6px;">SERIAL POSITION FUNCTION (% correct)</div>
        <canvas id="sprPositionChart" width="540" height="180" style="display:block;width:100%;background:#060d14;border:1px solid #1a2f44;"></canvas>
      </div>
      <div class="vrt-results-grid" id="sprResultsGrid"></div>
      <div style="display:flex;gap:12px;margin-top:8px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="sprExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
  <div class="key-legend">
    <span class="key-legend-item"><span class="key-cap">F</span> / Left click — YES</span>
    <span class="key-legend-sep">·</span>
    <span class="key-legend-item"><span class="key-cap">J</span> / Right click — NO</span>
  </div>
</div>

<div id="spraScreen" class="task-screen spr-screen">
  <div class="practice-banner" id="spraPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div class="spr-header">
    <span class="spr-task-label">SERIAL PROBE RECOGNITION (AUDITORY)</span>
    <span id="spra-trial" class="spr-meta">—</span>
    <span id="spra-phase" class="spr-meta">—</span>
    <span id="spra-listlen" class="spr-meta">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="spraProgressBar" style="width:0%"></div></div>

  <div id="spraNoAssetsPhase" style="display:none">
    <div class="spr-arena">
      <div class="spr-noassets-msg">
        SPR-A requires at least 8 sound files in the SPR-A pool.<br><br>
        Open <strong>♬ CUSTOM AUDIO</strong> from the sidebar, scroll to the
        SPR-A POOL section, and load multiple WAV/MP3 files.<br><br>
        Files persist across sessions.
      </div>
      <button class="intro-btn primary" style="margin-top:18px;" onclick="CustomAudio.openPanel()">♬ OPEN CUSTOM AUDIO</button>
    </div>
  </div>

  <div id="spraStudyPhase" style="display:none">
    <div class="spr-arena">
      <div class="spr-phase-label study" id="spraStudyLabel">STUDY · ITEM 1</div>
      <div class="spra-audio-stim">
        <div class="spra-pulse">♪</div>
        <div class="spr-meta" id="spraStudyName">—</div>
      </div>
    </div>
  </div>

  <div id="spraRetentionPhase" style="display:none">
    <div class="spr-arena">
      <div class="spr-phase-label retention">RETENTION</div>
      <div class="spr-stim-box" style="border-style:dashed;border-color:rgba(200,168,75,0.2);">
        <span style="font-size:3rem;color:var(--dim);">+</span>
      </div>
    </div>
  </div>

  <div id="spraProbePhase" style="display:none">
    <div class="spr-arena">
      <div class="spr-phase-label probe">WAS THIS SOUND IN THE LIST?</div>
      <div class="spra-audio-stim">
        <div class="spra-pulse">♪</div>
      </div>
      <div class="spr-resp-row">
        <button class="spr-resp-btn yes" onclick="spraRespond(true)">YES (F / ← click)</button>
        <button class="spr-resp-btn no" onclick="spraRespond(false)">NO (J / → click)</button>
      </div>
      <div class="feedback" id="spraFeedback"></div>
    </div>
  </div>

  <div id="spraResultsPhase" style="display:none">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">SERIAL PROBE-A — RESULTS</div>
      <div class="vrt-metrics" id="spraMetrics"></div>
      <div style="width:100%;max-width:540px;margin:14px 0 4px 0;">
        <div style="font-size:0.75rem;color:var(--dim);letter-spacing:0.12em;margin-bottom:6px;">SERIAL POSITION FUNCTION (% correct)</div>
        <canvas id="spraPositionChart" width="540" height="180" style="display:block;width:100%;background:#060d14;border:1px solid #1a2f44;"></canvas>
      </div>
      <div class="vrt-results-grid" id="spraResultsGrid"></div>
      <div style="display:flex;gap:12px;margin-top:8px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="spraExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
  <div class="key-legend">
    <span class="key-legend-item"><span class="key-cap">F</span> / Left click — YES</span>
    <span class="key-legend-sep">·</span>
    <span class="key-legend-item"><span class="key-cap">J</span> / Right click — NO</span>
  </div>
</div>

<!-- Custom Images modal (parallel to Custom Audio) -->
<style>
#customImagesModal{position:fixed;top:0;left:0;width:100%;height:100%;
  background:rgba(8,12,20,0.85);z-index:9000;display:none;
  align-items:center;justify-content:center;font-family:'EB Garamond',serif;}
#customImagesModal.open{display:flex;}
#customImagesModal .ci-panel{background:#0d1622;border:1px solid rgba(200,168,75,0.4);
  border-radius:6px;padding:28px 32px;max-width:640px;width:90%;
  max-height:88vh;overflow-y:auto;
  box-shadow:0 8px 40px rgba(0,0,0,0.6);}
#customImagesModal .ci-title{color:var(--gold);font-size:1.15rem;
  letter-spacing:0.18em;margin-bottom:6px;font-family:'EB Garamond',serif;}
#customImagesModal .ci-sub{color:var(--dim);font-size:0.78rem;
  font-family:'Source Code Pro',monospace;margin-bottom:18px;letter-spacing:0.04em;}
#customImagesModal .ci-pool{border:1px dashed rgba(200,168,75,0.35);
  border-radius:4px;padding:14px;margin-bottom:14px;background:rgba(20,28,40,0.4);
  transition:all 0.15s ease;}
#customImagesModal .ci-pool.dragover{border-color:var(--gold);
  background:rgba(212,165,32,0.08);border-style:solid;}
#customImagesModal .ci-pool.loaded{border-style:solid;border-color:rgba(200,168,75,0.55);}
#customImagesModal .ci-pool-label{color:var(--gold);font-size:0.82rem;
  letter-spacing:0.15em;font-family:'Source Code Pro',monospace;margin-bottom:6px;}
#customImagesModal .ci-pool-info{color:var(--mid);font-size:0.78rem;
  font-family:'Source Code Pro',monospace;margin-bottom:8px;min-height:1em;}
#customImagesModal .ci-pool-info.empty{color:var(--dim);font-style:italic;}
#customImagesModal .ci-thumbs{display:flex;flex-wrap:wrap;gap:6px;
  margin:8px 0;max-height:160px;overflow-y:auto;padding:6px;
  background:rgba(6,13,20,0.4);border-radius:3px;}
#customImagesModal .ci-thumb{width:48px;height:48px;border:1px solid rgba(200,168,75,0.3);
  border-radius:3px;background:#060d14;display:flex;align-items:center;justify-content:center;
  overflow:hidden;}
#customImagesModal .ci-thumb img{max-width:100%;max-height:100%;object-fit:contain;}
#customImagesModal .ci-pool-actions{display:flex;gap:8px;flex-wrap:wrap;}
#customImagesModal .ci-btn{background:transparent;border:1px solid rgba(200,168,75,0.4);
  color:var(--gold);padding:4px 12px;font-size:0.75rem;cursor:pointer;
  font-family:'Source Code Pro',monospace;letter-spacing:0.06em;border-radius:3px;
  transition:all 0.12s;}
#customImagesModal .ci-btn:hover{background:rgba(212,165,32,0.12);}
#customImagesModal .ci-btn.danger{border-color:rgba(200,100,80,0.5);color:#d88;}
#customImagesModal .ci-btn.danger:hover{background:rgba(200,80,80,0.12);}
#customImagesModal .ci-footer{display:flex;justify-content:space-between;
  align-items:center;margin-top:18px;}
#customImagesModal .ci-close{background:transparent;border:1px solid rgba(180,180,180,0.3);
  color:var(--mid);padding:6px 18px;font-size:0.78rem;cursor:pointer;
  font-family:'Source Code Pro',monospace;letter-spacing:0.1em;border-radius:3px;}
#customImagesModal .ci-close:hover{color:var(--gold);border-color:var(--gold);}
#customImagesModal .ci-hint{color:var(--dim);font-size:0.72rem;
  font-family:'Source Code Pro',monospace;}
#customImagesSidebarBtn.has-images{background:rgba(212,165,32,0.08) !important;
  border-color:rgba(212,165,32,0.85) !important;color:var(--gold) !important;}
</style>

<div id="customImagesModal" onclick="if(event.target===this)CustomImages.closePanel()">
  <div class="ci-panel">
    <div class="ci-title">CUSTOM IMAGES</div>
    <div class="ci-sub">drop multiple JPG / PNG / GIF / WEBP files to build a picture pool for SPR · persists across sessions</div>

    <div class="ci-pool" id="ciPool-spr">
      <div class="ci-pool-label">SPR POOL <span id="ciCount-spr" style="color:var(--mid);font-weight:normal;letter-spacing:0.05em;">— 0 images</span></div>
      <div class="ci-pool-info empty" id="ciInfo-spr">no images — using procedural shape generator (250 trial-unique stimuli per block)</div>
      <div class="ci-thumbs" id="ciThumbs-spr" style="display:none;"></div>
      <div class="ci-pool-actions">
        <button class="ci-btn" onclick="CustomImages.pickFiles('spr')">⤴ Load Files</button>
        <button class="ci-btn danger" onclick="CustomImages.clearPool('spr')" id="ciClear-spr" style="display:none">✕ Clear Pool</button>
      </div>
    </div>

    <div class="ci-pool" id="ciPool-snodgrass">
      <div class="ci-pool-label">SNODGRASS &amp; VANDERWART (1980) <span id="ciCount-snodgrass" style="color:var(--mid);font-weight:normal;letter-spacing:0.05em;">— 0 images</span></div>
      <div class="ci-pool-info empty" id="ciInfo-snodgrass">no images — drop your Snodgrass &amp; Vanderwart (1980) 260-item set here (you supply the files)</div>
      <div class="ci-thumbs" id="ciThumbs-snodgrass" style="display:none;"></div>
      <div style="font-size:0.68rem;color:var(--dim);font-family:'Source Code Pro',monospace;line-height:1.5;margin-bottom:8px;">
        260 standardized object line-drawings, normed for name agreement, familiarity, visual complexity, and image agreement.
        Images are <strong>not bundled</strong> (copyright) — load your own files. Name files after the concept (e.g. <em>apple.png</em>, <em>001_apple.jpg</em>) and cognos will auto-match the published norms and log them per trial.
      </div>
      <div class="ci-pool-actions">
        <button class="ci-btn" onclick="CustomImages.pickFiles('snodgrass')">⤴ Load Files</button>
        <button class="ci-btn danger" onclick="CustomImages.clearPool('snodgrass')" id="ciClear-snodgrass" style="display:none">✕ Clear Pool</button>
      </div>
    </div>

    <div class="ci-footer">
      <div class="ci-hint">images stored in browser IndexedDB · load 20+ for best SPR coverage</div>
      <button class="ci-close" onclick="CustomImages.closePanel()">CLOSE</button>
    </div>
  </div>
</div>

<script>
// ──────────────────────────────────────────────────────────────────────
// Snodgrass & Vanderwart (1980) — canonical 260 concept names.
// Published concept labels only; per-item rating fields (fam, cplx,
// nameAgr, imgAgr) default null and can be populated by the user.
// Images are user-supplied (copyright) — this table is just the norms
// scaffolding used to auto-match filenames and log canonical names.
// ──────────────────────────────────────────────────────────────────────
window.SNODGRASS_NORMS = {
  "accordion":{name:"accordion",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "airplane":{name:"airplane",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "alligator":{name:"alligator",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "anchor":{name:"anchor",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "ant":{name:"ant",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "apple":{name:"apple",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "arm":{name:"arm",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "arrow":{name:"arrow",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "artichoke":{name:"artichoke",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "ashtray":{name:"ashtray",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "asparagus":{name:"asparagus",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "axe":{name:"axe",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "baby carriage":{name:"baby carriage",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "ball":{name:"ball",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "balloon":{name:"balloon",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "banana":{name:"banana",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "barn":{name:"barn",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "barrel":{name:"barrel",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "basket":{name:"basket",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "bear":{name:"bear",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "bed":{name:"bed",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "bee":{name:"bee",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "beetle":{name:"beetle",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "bell":{name:"bell",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "belt":{name:"belt",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "bicycle":{name:"bicycle",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "bird":{name:"bird",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "blouse":{name:"blouse",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "book":{name:"book",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "boot":{name:"boot",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "bottle":{name:"bottle",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "bow":{name:"bow",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "bowl":{name:"bowl",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "box":{name:"box",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "bread":{name:"bread",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "broom":{name:"broom",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "brush":{name:"brush",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "bus":{name:"bus",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "butterfly":{name:"butterfly",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "button":{name:"button",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "cake":{name:"cake",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "camel":{name:"camel",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "cannon":{name:"cannon",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "cap":{name:"cap",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "car":{name:"car",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "carrot":{name:"carrot",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "cat":{name:"cat",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "caterpillar":{name:"caterpillar",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "celery":{name:"celery",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "chain":{name:"chain",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "chair":{name:"chair",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "cherry":{name:"cherry",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "chicken":{name:"chicken",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "chisel":{name:"chisel",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "church":{name:"church",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "cigar":{name:"cigar",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "cigarette":{name:"cigarette",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "clock":{name:"clock",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "clothespin":{name:"clothespin",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "cloud":{name:"cloud",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "clown":{name:"clown",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "coat":{name:"coat",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "comb":{name:"comb",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "corn":{name:"corn",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "couch":{name:"couch",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "cow":{name:"cow",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "crown":{name:"crown",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "cup":{name:"cup",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "deer":{name:"deer",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "desk":{name:"desk",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "dog":{name:"dog",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "doll":{name:"doll",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "donkey":{name:"donkey",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "door":{name:"door",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "doorknob":{name:"doorknob",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "dress":{name:"dress",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "dresser":{name:"dresser",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "drum":{name:"drum",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "duck":{name:"duck",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "eagle":{name:"eagle",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "ear":{name:"ear",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "earring":{name:"earring",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "elephant":{name:"elephant",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "envelope":{name:"envelope",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "eye":{name:"eye",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "fence":{name:"fence",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "finger":{name:"finger",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "fish":{name:"fish",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "flag":{name:"flag",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "flashlight":{name:"flashlight",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "flower":{name:"flower",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "flute":{name:"flute",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "fly":{name:"fly",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "foot":{name:"foot",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "football helmet":{name:"football helmet",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "football":{name:"football",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "fork":{name:"fork",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "fox":{name:"fox",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "french horn":{name:"French horn",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "frog":{name:"frog",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "frying pan":{name:"frying pan",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "garbage can":{name:"garbage can",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "giraffe":{name:"giraffe",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "glass":{name:"glass",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "glasses":{name:"glasses",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "glove":{name:"glove",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "goat":{name:"goat",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "gorilla":{name:"gorilla",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "grapes":{name:"grapes",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "grasshopper":{name:"grasshopper",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "guitar":{name:"guitar",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "gun":{name:"gun",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "hair":{name:"hair",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "hammer":{name:"hammer",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "hand":{name:"hand",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "handbag":{name:"handbag",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "harp":{name:"harp",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "hat":{name:"hat",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "heart":{name:"heart",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "helicopter":{name:"helicopter",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "horse":{name:"horse",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "house":{name:"house",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "iron":{name:"iron",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "ironing board":{name:"ironing board",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "jacket":{name:"jacket",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "kangaroo":{name:"kangaroo",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "kettle":{name:"kettle",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "key":{name:"key",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "kite":{name:"kite",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "knife":{name:"knife",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "ladder":{name:"ladder",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "lamp":{name:"lamp",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "leaf":{name:"leaf",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "leg":{name:"leg",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "lemon":{name:"lemon",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "leopard":{name:"leopard",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "lettuce":{name:"lettuce",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "light bulb":{name:"light bulb",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "light switch":{name:"light switch",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "lion":{name:"lion",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "lips":{name:"lips",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "lobster":{name:"lobster",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "lock":{name:"lock",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "mitten":{name:"mitten",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "monkey":{name:"monkey",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "moon":{name:"moon",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "motorcycle":{name:"motorcycle",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "mountain":{name:"mountain",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "mouse":{name:"mouse",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "mushroom":{name:"mushroom",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "nail":{name:"nail",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "nail file":{name:"nail file",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "necklace":{name:"necklace",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "needle":{name:"needle",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "nose":{name:"nose",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "nut":{name:"nut",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "onion":{name:"onion",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "orange":{name:"orange",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "ostrich":{name:"ostrich",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "owl":{name:"owl",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "paintbrush":{name:"paintbrush",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "pants":{name:"pants",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "peacock":{name:"peacock",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "peach":{name:"peach",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "peanut":{name:"peanut",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "pear":{name:"pear",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "pen":{name:"pen",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "pencil":{name:"pencil",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "penguin":{name:"penguin",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "pepper":{name:"pepper",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "piano":{name:"piano",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "pig":{name:"pig",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "pineapple":{name:"pineapple",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "pipe":{name:"pipe",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "pitcher":{name:"pitcher",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "pliers":{name:"pliers",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "plug":{name:"plug",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "pocketbook":{name:"pocketbook",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "pot":{name:"pot",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "potato":{name:"potato",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "pumpkin":{name:"pumpkin",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "rabbit":{name:"rabbit",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "raccoon":{name:"raccoon",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "record player":{name:"record player",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "refrigerator":{name:"refrigerator",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "rhinoceros":{name:"rhinoceros",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "ring":{name:"ring",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "rocking chair":{name:"rocking chair",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "roller skate":{name:"roller skate",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "rolling pin":{name:"rolling pin",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "rooster":{name:"rooster",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "ruler":{name:"ruler",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "sailboat":{name:"sailboat",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "salt shaker":{name:"salt shaker",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "sandwich":{name:"sandwich",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "saw":{name:"saw",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "scissors":{name:"scissors",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "screw":{name:"screw",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "screwdriver":{name:"screwdriver",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "seahorse":{name:"seahorse",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "seal":{name:"seal",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "sheep":{name:"sheep",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "shirt":{name:"shirt",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "shoe":{name:"shoe",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "skirt":{name:"skirt",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "skunk":{name:"skunk",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "sled":{name:"sled",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "snail":{name:"snail",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "snake":{name:"snake",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "snowman":{name:"snowman",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "sock":{name:"sock",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "spider":{name:"spider",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "spinning wheel":{name:"spinning wheel",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "spool of thread":{name:"spool of thread",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "spoon":{name:"spoon",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "squirrel":{name:"squirrel",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "star":{name:"star",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "stairs":{name:"stairs",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "stool":{name:"stool",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "stove":{name:"stove",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "strawberry":{name:"strawberry",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "string":{name:"string",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "suitcase":{name:"suitcase",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "sun":{name:"sun",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "swan":{name:"swan",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "sweater":{name:"sweater",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "swing":{name:"swing",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "table":{name:"table",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "telephone":{name:"telephone",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "television":{name:"television",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "tennis racket":{name:"tennis racket",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "thimble":{name:"thimble",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "tie":{name:"tie",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "tiger":{name:"tiger",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "toaster":{name:"toaster",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "toe":{name:"toe",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "tomato":{name:"tomato",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "toothbrush":{name:"toothbrush",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "top":{name:"top",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "traffic light":{name:"traffic light",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "train":{name:"train",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "tree":{name:"tree",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "truck":{name:"truck",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "trumpet":{name:"trumpet",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "turtle":{name:"turtle",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "umbrella":{name:"umbrella",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "vase":{name:"vase",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "vest":{name:"vest",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "watch":{name:"watch",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "watering can":{name:"watering can",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "watermelon":{name:"watermelon",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "well":{name:"well",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "whale":{name:"whale",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "wheel":{name:"wheel",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "whistle":{name:"whistle",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "windmill":{name:"windmill",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "window":{name:"window",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "wine glass":{name:"wine glass",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "wrench":{name:"wrench",fam:null,cplx:null,nameAgr:null,imgAgr:null},
  "zebra":{name:"zebra",fam:null,cplx:null,nameAgr:null,imgAgr:null}
};

// ──────────────────────────────────────────────────────────────────────
// CustomImages — IndexedDB picture pool, parallel to CustomAudio
// ──────────────────────────────────────────────────────────────────────
(function(){
  var DB = 'cognos-custom-images';
  var STORE = 'pools';   // key = poolName, value = [{name, type, dataUrl}, ...]
  var _dbP = null;
  function _open(){
    if (_dbP) return _dbP;
    _dbP = new Promise(function(res, rej){
      var r = indexedDB.open(DB, 1);
      r.onupgradeneeded = function(){ r.result.createObjectStore(STORE); };
      r.onsuccess = function(){ res(r.result); };
      r.onerror   = function(){ rej(r.error); };
    });
    return _dbP;
  }
  function _idbGet(k){
    return _open().then(function(db){
      return new Promise(function(res, rej){
        var t = db.transaction(STORE, 'readonly');
        var r = t.objectStore(STORE).get(k);
        r.onsuccess = function(){ res(r.result || null); };
        r.onerror   = function(){ rej(r.error); };
      });
    });
  }
  function _idbPut(k, v){
    return _open().then(function(db){
      return new Promise(function(res, rej){
        var t = db.transaction(STORE, 'readwrite');
        t.objectStore(STORE).put(v, k);
        t.oncomplete = function(){ res(); };
        t.onerror    = function(){ rej(t.error); };
      });
    });
  }
  function _idbDel(k){
    return _open().then(function(db){
      return new Promise(function(res, rej){
        var t = db.transaction(STORE, 'readwrite');
        t.objectStore(STORE).delete(k);
        t.oncomplete = function(){ res(); };
        t.onerror    = function(){ rej(t.error); };
      });
    });
  }

  var _pools = {};  // poolName -> [{name, dataUrl}, ...]

  function _hydrate(){
    return Promise.all(['spr','snodgrass'].map(function(name){
      return _idbGet(name).then(function(items){
        if (items && Array.isArray(items)) _pools[name] = items;
      });
    })).catch(function(e){ console.warn('CustomImages hydrate', e); });
  }
  function _readAsDataUrl(file){
    return new Promise(function(res, rej){
      var r = new FileReader();
      r.onload  = function(){ res(r.result); };
      r.onerror = function(){ rej(r.error); };
      r.readAsDataURL(file);
    });
  }
  function _refreshPoolUI(pool){
    var info  = document.getElementById('ciInfo-' + pool);
    var thumbs= document.getElementById('ciThumbs-' + pool);
    var count = document.getElementById('ciCount-' + pool);
    var clr   = document.getElementById('ciClear-' + pool);
    var box   = document.getElementById('ciPool-' + pool);
    if (!info) return;
    var items = _pools[pool] || [];
    if (count) count.textContent = '— ' + items.length + ' image' + (items.length===1?'':'s');
    if (items.length > 0) {
      info.className = 'ci-pool-info';
      var matched = (pool === 'snodgrass' && window.SNODGRASS_NORMS)
        ? items.filter(function(it){ return _snodgrassMatch(it.name); }).length : 0;
      if (pool === 'snodgrass') {
        info.textContent = items.length + ' image' + (items.length===1?'':'s') +
          ' loaded · ' + matched + ' matched to S&V norms — used for SPR / MTS';
      } else {
        info.textContent = items.length + ' image' + (items.length===1?'':'s') + ' loaded — used for SPR / MTS study lists';
      }
      if (thumbs) {
        thumbs.style.display = 'flex';
        thumbs.innerHTML = items.slice(0, 60).map(function(it){
          return '<div class="ci-thumb"><img src="' + it.dataUrl + '" alt=""></div>';
        }).join('') + (items.length > 60 ? '<div class="ci-thumb" style="color:var(--dim);font-size:0.7rem;">+' + (items.length-60) + '</div>' : '');
      }
      if (clr) clr.style.display = 'inline-block';
      if (box) box.classList.add('loaded');
    } else {
      info.className = 'ci-pool-info empty';
      if (pool === 'snodgrass') {
        info.textContent = 'no images — drop your Snodgrass & Vanderwart (1980) 260-item set here (you supply the files)';
      } else {
        info.textContent = 'no images — using procedural shape generator (250 trial-unique stimuli per block)';
      }
      if (thumbs) { thumbs.style.display = 'none'; thumbs.innerHTML = ''; }
      if (clr) clr.style.display = 'none';
      if (box) box.classList.remove('loaded');
    }
    var sbtn = document.getElementById('customImagesSidebarBtn');
    if (sbtn) {
      var anyLoaded = Object.values(_pools).some(function(p){ return p && p.length > 0; });
      if (anyLoaded) sbtn.classList.add('has-images');
      else sbtn.classList.remove('has-images');
    }
  }

  function _addFiles(pool, files){
    if (!files || !files.length) return Promise.resolve();
    var arr = Array.from(files).filter(function(f){
      return f.type && f.type.indexOf('image/') === 0;
    });
    if (!arr.length) return Promise.resolve();
    return Promise.all(arr.map(function(f){
      return _readAsDataUrl(f).then(function(du){
        return { name: f.name, dataUrl: du };
      });
    })).then(function(loaded){
      _pools[pool] = (_pools[pool] || []).concat(loaded);
      return _idbPut(pool, _pools[pool]);
    }).then(function(){
      _refreshPoolUI(pool);
    });
  }
  function _wireDrop(pool){
    var box = document.getElementById('ciPool-' + pool);
    if (!box) return;
    box.addEventListener('dragenter', function(e){
      e.preventDefault(); box.classList.add('dragover');
    });
    box.addEventListener('dragover', function(e){
      e.preventDefault(); box.classList.add('dragover');
    });
    box.addEventListener('dragleave', function(e){
      if (e.target === box) box.classList.remove('dragover');
    });
    box.addEventListener('drop', function(e){
      e.preventDefault(); box.classList.remove('dragover');
      var fs = e.dataTransfer && e.dataTransfer.files;
      if (fs && fs.length) _addFiles(pool, fs);
    });
  }

  window.CustomImages = {
    openPanel: function(){
      var m = document.getElementById('customImagesModal');
      if (m) m.classList.add('open');
      ['spr','snodgrass'].forEach(_refreshPoolUI);
    },
    closePanel: function(){
      var m = document.getElementById('customImagesModal');
      if (m) m.classList.remove('open');
    },
    pickFiles: function(pool){
      var inp = document.createElement('input');
      inp.type = 'file';
      inp.multiple = true;
      inp.accept = 'image/*';
      inp.onchange = function(){ _addFiles(pool, inp.files); };
      inp.click();
    },
    clearPool: function(pool){
      _pools[pool] = [];
      _idbDel(pool).catch(function(){});
      _refreshPoolUI(pool);
    },
    getPool: function(pool){ return _pools[pool] || []; },
    hasPool: function(pool){ return (_pools[pool] || []).length > 0; },
    // Match a filename to a Snodgrass & Vanderwart norm entry (published
    // ratings only — the images themselves are user-supplied). Returns the
    // norm object {name, familiarity, complexity, agreement} or null.
    snodgrassNorm: function(filename){ return _snodgrassMatch(filename); },
  };

  // Normalise a filename to a concept key and look it up in the norms table.
  // Strips path, extension, numeric prefixes/suffixes, separators.
  function _snodgrassMatch(filename){
    if (!window.SNODGRASS_NORMS || !filename) return null;
    var base = String(filename).replace(/^.*[\\/]/, '').replace(/\.[^.]+$/, '');
    // common patterns: "001_apple", "apple", "apple1", "apple_color", "apple-2"
    var key = base.toLowerCase()
      .replace(/^[0-9]+[\s_\-]*/, '')      // leading numbers
      .replace(/[\s_\-]*[0-9]+$/, '')      // trailing numbers
      .replace(/[\s_\-]+/g, ' ')           // separators → space
      .trim();
    return window.SNODGRASS_NORMS[key] || null;
  }

  function _init(){
    _wireDrop('spr');
    _wireDrop('snodgrass');
    _hydrate().then(function(){
      ['spr','snodgrass'].forEach(_refreshPoolUI);
    });
  }
  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', _init);
  } else {
    _init();
  }
})();

// ──────────────────────────────────────────────────────────────────────
// Procedural stimulus generator — generates N visually-distinct items
// using compositions of color, shape, and pattern. Each call returns
// SVG markup ready to drop into an .innerHTML.
// ──────────────────────────────────────────────────────────────────────
// ──────────────────────────────────────────────────────────────────────
// SPR_Objects — original black-on-white line-art object drawings.
// These are NOT the Snodgrass & Vanderwart images; they are original
// outline drawings in a similar everyday-object style, drawn from scratch
// so they can be embedded freely. Each entry: { name, svg } where svg is
// inner markup for a 0 0 200 200 viewBox, stroke #111 on white, no fill
// unless noted. Concept names overlap the S&V norm list where possible so
// per-trial name logging still works.
// ──────────────────────────────────────────────────────────────────────
window.SPR_Objects = (function(){
  var S = 'fill="none" stroke="#111" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"';
  var SF = 'fill="#fff" stroke="#111" stroke-width="4" stroke-linecap="round" stroke-linejoin="round"';
  // Each object is a function returning inner SVG markup.
  var O = {
    apple: '<path '+SF+' d="M100 60 C70 40 45 60 50 95 C54 130 75 160 100 160 C125 160 146 130 150 95 C155 60 130 40 100 60 Z"/>'+
           '<path '+S+' d="M100 60 L100 42 C100 32 110 26 120 28"/>'+
           '<path '+S+' d="M100 44 C112 30 128 30 138 38 C128 50 112 50 100 50"/>',
    ball:  '<circle '+SF+' cx="100" cy="100" r="60"/>'+
           '<path '+S+' d="M48 80 C90 100 110 100 152 80 M48 120 C90 100 110 100 152 120 M100 40 C80 80 80 120 100 160 M100 40 C120 80 120 120 100 160"/>',
    banana:'<path '+SF+' d="M55 70 C60 120 110 160 160 145 C150 150 130 150 120 142 C90 125 70 95 72 68 C72 60 64 62 55 70 Z"/>',
    bell:  '<path '+SF+' d="M100 45 C75 45 70 70 68 95 C66 120 55 135 50 145 L150 145 C145 135 134 120 132 95 C130 70 125 45 100 45 Z"/>'+
           '<circle '+SF+' cx="100" cy="40" r="8"/>'+
           '<circle '+SF+' cx="100" cy="155" r="8"/>',
    book:  '<path '+SF+' d="M100 55 C80 45 55 45 45 50 L45 145 C55 140 80 140 100 150 C120 140 145 140 155 145 L155 50 C145 45 120 45 100 55 Z"/>'+
           '<path '+S+' d="M100 55 L100 150"/>',
    bottle:'<path '+SF+' d="M88 40 L112 40 L112 65 C112 75 122 80 122 95 L122 155 C122 160 118 162 112 162 L88 162 C82 162 78 160 78 155 L78 95 C78 80 88 75 88 65 Z"/>',
    bowl:  '<path '+SF+' d="M45 95 C45 135 75 155 100 155 C125 155 155 135 155 95 Z"/>'+
           '<ellipse '+S+' cx="100" cy="95" rx="55" ry="14"/>',
    bread: '<path '+SF+' d="M55 110 C55 80 75 70 100 70 C125 70 145 80 145 110 L145 140 L55 140 Z"/>'+
           '<path '+S+' d="M70 90 L72 105 M90 86 L92 102 M110 86 L112 102 M130 90 L132 105"/>',
    butterfly:'<path '+SF+' d="M100 100 C70 55 40 60 45 95 C48 125 80 120 100 100 Z"/>'+
           '<path '+SF+' d="M100 100 C130 55 160 60 155 95 C152 125 120 120 100 100 Z"/>'+
           '<path '+SF+' d="M100 100 C75 130 55 130 60 150 C65 165 90 150 100 120 Z"/>'+
           '<path '+SF+' d="M100 100 C125 130 145 130 140 150 C135 165 110 150 100 120 Z"/>'+
           '<line '+S+' x1="100" y1="62" x2="100" y2="150"/>',
    cake:  '<path '+SF+' d="M55 110 L145 110 L145 150 L55 150 Z"/>'+
           '<path '+S+' d="M55 122 C75 132 90 112 100 122 C112 132 128 112 145 122"/>'+
           '<line '+S+' x1="100" y1="110" x2="100" y2="80"/>'+
           '<path '+SF+' d="M100 80 C92 70 108 70 100 80 Z"/>',
    car:   '<path '+SF+' d="M40 120 L52 95 C56 86 64 82 74 82 L130 82 C138 82 145 86 150 94 L162 118 L162 130 L40 130 Z"/>'+
           '<circle '+SF+' cx="68" cy="132" r="14"/>'+
           '<circle '+SF+' cx="135" cy="132" r="14"/>'+
           '<path '+S+' d="M72 84 L80 104 L120 104 L126 84"/>',
    carrot:'<path '+SF+' d="M85 70 L115 70 L102 158 C100 162 100 162 98 158 Z"/>'+
           '<path '+S+' d="M100 70 L100 45 M100 55 L82 42 M100 55 L118 42"/>'+
           '<path '+S+' d="M92 95 L108 95 M95 120 L105 120"/>',
    cat:   '<circle '+SF+' cx="100" cy="110" r="42"/>'+
           '<path '+SF+' d="M70 80 L62 50 L88 72 Z"/>'+
           '<path '+SF+' d="M130 80 L138 50 L112 72 Z"/>'+
           '<circle fill="#111" cx="86" cy="105" r="4"/>'+
           '<circle fill="#111" cx="114" cy="105" r="4"/>'+
           '<path '+S+' d="M100 116 L96 122 L104 122 Z M100 122 L100 130 M68 120 L48 116 M68 128 L48 130 M132 120 L152 116 M132 128 L152 130"/>',
    chair: '<path '+S+' d="M70 60 L70 150 M70 60 L120 60 L120 150 M70 105 L120 105 M120 105 L150 105 L150 150 M150 105 L150 60 L120 60"/>'+
           '<path '+S+' d="M70 150 L70 165 M120 150 L120 165 M150 150 L150 165 M95 105 L95 150"/>',
    cherry:'<circle '+SF+' cx="78" cy="130" r="22"/>'+
           '<circle '+SF+' cx="125" cy="135" r="22"/>'+
           '<path '+S+' d="M78 108 C82 75 110 60 130 58 M125 113 C120 85 124 70 130 58"/>'+
           '<path '+S+' d="M130 58 C140 52 150 56 152 64"/>',
    clock: '<circle '+SF+' cx="100" cy="100" r="58"/>'+
           '<circle '+SF+' cx="100" cy="100" r="4"/>'+
           '<line '+S+' x1="100" y1="100" x2="100" y2="62"/>'+
           '<line '+S+' x1="100" y1="100" x2="128" y2="112"/>'+
           '<path '+S+' d="M100 42 L100 50 M158 100 L150 100 M100 158 L100 150 M42 100 L50 100"/>',
    cloud: '<path '+SF+' d="M60 130 C40 130 38 105 58 100 C56 78 92 70 100 90 C112 70 150 78 142 102 C162 104 162 130 142 130 Z"/>',
    cup:   '<path '+SF+' d="M62 80 L138 80 L130 145 C129 152 124 155 118 155 L82 155 C76 155 71 152 70 145 Z"/>'+
           '<path '+S+' d="M138 92 C162 92 162 130 134 130"/>',
    dog:   '<ellipse '+SF+' cx="95" cy="120" rx="48" ry="32"/>'+
           '<circle '+SF+' cx="148" cy="100" r="26"/>'+
           '<path '+SF+' d="M138 90 L120 80 L130 100 Z"/>'+
           '<circle fill="#111" cx="156" cy="98" r="3"/>'+
           '<path '+S+' d="M165 108 L172 108 M55 145 L55 165 M80 150 L80 168 M115 150 L115 168 M48 118 C30 110 30 128 46 124"/>',
    door:  '<rect '+SF+' x="65" y="45" width="70" height="120"/>'+
           '<rect '+S+' x="75" y="58" width="50" height="45"/>'+
           '<rect '+S+' x="75" y="115" width="50" height="40"/>'+
           '<circle fill="#111" cx="122" cy="108" r="4"/>',
    drum:  '<ellipse '+SF+' cx="100" cy="75" rx="50" ry="16"/>'+
           '<path '+SF+' d="M50 75 L50 130 C50 142 73 150 100 150 C127 150 150 142 150 130 L150 75"/>'+
           '<path '+S+' d="M55 82 L70 122 M75 88 L90 130 M125 88 L110 130 M145 82 L130 122"/>',
    duck:  '<ellipse '+SF+' cx="92" cy="120" rx="46" ry="30"/>'+
           '<circle '+SF+' cx="135" cy="92" r="22"/>'+
           '<path '+SF+' d="M153 90 L172 86 L172 98 L153 100 Z"/>'+
           '<circle fill="#111" cx="138" cy="86" r="3"/>'+
           '<path '+S+' d="M55 135 C40 140 40 125 52 124"/>',
    egg:   '<path '+SF+' d="M100 50 C70 50 58 100 62 125 C66 150 84 160 100 160 C116 160 134 150 138 125 C142 100 130 50 100 50 Z"/>',
    eye:   '<path '+SF+' d="M45 100 C70 70 130 70 155 100 C130 130 70 130 45 100 Z"/>'+
           '<circle '+SF+' cx="100" cy="100" r="20"/>'+
           '<circle fill="#111" cx="100" cy="100" r="9"/>',
    fish:  '<path '+SF+' d="M40 100 C70 70 120 70 145 100 C120 130 70 130 40 100 Z"/>'+
           '<path '+SF+' d="M145 100 L172 80 L165 100 L172 122 Z"/>'+
           '<circle fill="#111" cx="70" cy="95" r="4"/>'+
           '<path '+S+' d="M95 80 C105 100 105 100 95 122"/>',
    flag:  '<line '+S+' x1="62" y1="40" x2="62" y2="165"/>'+
           '<path '+SF+' d="M62 48 L140 48 L128 70 L140 92 L62 92 Z"/>',
    flower:'<circle '+SF+' cx="100" cy="85" r="14"/>'+
           '<circle '+SF+' cx="100" cy="58" r="16"/>'+
           '<circle '+SF+' cx="74" cy="78" r="16"/>'+
           '<circle '+SF+' cx="126" cy="78" r="16"/>'+
           '<circle '+SF+' cx="84" cy="105" r="16"/>'+
           '<circle '+SF+' cx="116" cy="105" r="16"/>'+
           '<circle '+SF+' cx="100" cy="85" r="12"/>'+
           '<line '+S+' x1="100" y1="118" x2="100" y2="165"/>'+
           '<path '+S+' d="M100 140 C120 130 130 140 128 150 C112 152 102 150 100 140"/>',
    fork:  '<path '+S+' d="M80 45 L80 80 M95 45 L95 80 M110 45 L110 80 M95 80 L95 160"/>'+
           '<path '+SF+' d="M75 80 L115 80 C115 100 105 105 95 105 C85 105 75 100 75 80 Z"/>',
    glass: '<path '+SF+' d="M70 50 L130 50 L122 150 L78 150 Z"/>'+
           '<path '+S+' d="M73 90 L127 90"/>',
    glasses:'<circle '+SF+' cx="70" cy="105" r="26"/>'+
           '<circle '+SF+' cx="130" cy="105" r="26"/>'+
           '<path '+S+' d="M96 105 C100 95 100 95 104 105 M44 100 L30 88 M156 100 L170 88"/>',
    grapes:'<circle '+SF+' cx="100" cy="80" r="15"/>'+
           '<circle '+SF+' cx="80" cy="100" r="15"/>'+
           '<circle '+SF+' cx="120" cy="100" r="15"/>'+
           '<circle '+SF+' cx="100" cy="115" r="15"/>'+
           '<circle '+SF+' cx="88" cy="135" r="14"/>'+
           '<circle '+SF+' cx="112" cy="135" r="14"/>'+
           '<path '+S+' d="M100 65 L100 45 C100 38 110 36 116 40"/>',
    guitar:'<path '+SF+' d="M95 110 C70 110 60 135 78 150 C96 165 120 158 120 138 C120 128 116 122 116 112 L116 70 L108 70 L108 112 C108 120 104 110 95 110 Z"/>'+
           '<rect '+SF+' x="106" y="40" width="14" height="34"/>'+
           '<circle '+S+' cx="92" cy="138" r="10"/>',
    hammer:'<path '+SF+' d="M70 50 L130 50 L130 72 L108 72 L108 80 L92 80 L92 72 L70 72 Z"/>'+
           '<rect '+SF+' x="92" y="80" width="16" height="80" rx="4"/>',
    hand:  '<path '+SF+' d="M75 160 L75 95 C75 88 84 88 84 95 L84 70 C84 62 93 62 93 70 L93 60 C93 52 102 52 102 60 L102 68 C102 60 111 60 111 68 L111 95 C120 80 132 88 126 102 L114 135 C110 150 100 158 90 160 Z"/>',
    hat:   '<path '+SF+' d="M70 110 C70 75 85 60 100 60 C115 60 130 75 130 110 Z"/>'+
           '<ellipse '+SF+' cx="100" cy="115" rx="62" ry="14"/>',
    heart: '<path '+SF+' d="M100 150 C40 110 50 60 80 60 C95 60 100 75 100 80 C100 75 105 60 120 60 C150 60 160 110 100 150 Z"/>',
    house: '<path '+SF+' d="M55 95 L100 55 L145 95 L145 155 L55 155 Z"/>'+
           '<path '+S+' d="M45 100 L100 55 L155 100"/>'+
           '<rect '+SF+' x="88" y="118" width="26" height="37"/>'+
           '<rect '+S+' x="65" y="110" width="18" height="18"/>',
    key:   '<circle '+SF+' cx="70" cy="100" r="24"/>'+
           '<circle '+S+' cx="70" cy="100" r="9"/>'+
           '<path '+S+' d="M94 100 L160 100 M148 100 L148 118 M134 100 L134 114"/>',
    knife: '<path '+SF+' d="M55 80 C95 70 130 80 145 95 C130 105 95 110 70 105 L55 100 Z"/>'+
           '<rect '+SF+' x="40" y="92" width="22" height="14" rx="4"/>',
    leaf:  '<path '+SF+' d="M100 45 C140 70 140 130 100 160 C60 130 60 70 100 45 Z"/>'+
           '<path '+S+' d="M100 50 L100 158 M100 80 L78 92 M100 80 L122 92 M100 110 L75 122 M100 110 L125 122"/>',
    lamp:  '<path '+SF+' d="M70 70 L130 70 L118 110 L82 110 Z"/>'+
           '<line '+S+' x1="100" y1="110" x2="100" y2="150"/>'+
           '<path '+SF+' d="M78 150 L122 150 L128 162 L72 162 Z"/>',
    leg:   '<path '+SF+' d="M85 45 L115 45 L112 100 C112 120 122 135 122 150 L95 150 C95 135 88 122 88 100 Z"/>'+
           '<path '+SF+' d="M95 150 L135 150 L135 162 L92 162 Z"/>',
    lemon: '<path '+SF+' d="M60 100 C60 75 80 65 100 65 C120 65 140 75 140 100 C140 125 120 135 100 135 C80 135 60 125 60 100 Z"/>'+
           '<path '+S+' d="M138 100 L150 100 M62 100 L50 100"/>',
    lock:  '<rect '+SF+' x="60" y="95" width="80" height="65" rx="6"/>'+
           '<path '+S+' d="M75 95 L75 75 C75 55 125 55 125 75 L125 95"/>'+
           '<circle fill="#111" cx="100" cy="120" r="7"/>'+
           '<line '+S+' x1="100" y1="125" x2="100" y2="140"/>',
    moon:  '<path '+SF+' d="M120 45 C90 50 70 75 70 105 C70 135 92 158 122 158 C100 145 88 125 88 100 C88 75 100 55 120 45 Z"/>',
    mushroom:'<path '+SF+' d="M50 100 C50 70 75 55 100 55 C125 55 150 70 150 100 Z"/>'+
           '<path '+SF+' d="M85 100 L115 100 L110 150 C110 158 90 158 90 150 Z"/>'+
           '<circle fill="#111" cx="80" cy="82" r="4"/>'+
           '<circle fill="#111" cx="115" cy="78" r="5"/>',
    nail:  '<path '+SF+' d="M82 50 L118 50 L108 65 L92 65 Z"/>'+
           '<path '+SF+' d="M92 65 L108 65 L102 158 C100 162 100 162 98 158 Z"/>',
    pear:  '<path '+SF+' d="M100 60 C88 60 84 75 88 88 C72 100 70 130 88 150 C100 162 100 162 112 150 C130 130 128 100 112 88 C116 75 112 60 100 60 Z"/>'+
           '<path '+S+' d="M100 60 L100 46 C100 40 106 38 110 40"/>',
    pencil:'<path '+SF+' d="M60 70 L75 55 L150 130 L135 145 Z"/>'+
           '<path '+SF+' d="M60 70 L48 158 L135 145"/>'+
           '<path '+S+' d="M60 70 L75 55 M70 80 L88 62"/>'+
           '<path fill="#111" d="M48 158 L54 132 L62 140 Z"/>',
    pipe:  '<path '+SF+' d="M55 95 L95 95 L95 120 C95 140 75 150 60 145 C45 140 40 122 50 110 Z"/>'+
           '<path '+S+' d="M95 100 C130 95 150 90 165 78"/>',
    ring:  '<circle '+SF+' cx="100" cy="115" r="40"/>'+
           '<circle '+S+' cx="100" cy="115" r="26"/>'+
           '<path '+SF+' d="M85 78 L115 78 L108 55 L92 55 Z"/>',
    scissors:'<path '+S+' d="M150 60 L95 105 M150 150 L95 105"/>'+
           '<circle '+SF+' cx="70" cy="80" r="18"/>'+
           '<circle '+SF+' cx="70" cy="135" r="18"/>'+
           '<path '+S+' d="M86 90 L100 100 M86 125 L100 110"/>',
    shoe:  '<path '+SF+' d="M45 130 L45 105 C45 98 55 98 60 102 L90 95 C110 90 130 100 155 115 C162 119 162 130 155 132 L45 132 Z"/>'+
           '<path '+S+' d="M70 100 L74 118 M88 96 L92 114"/>',
    snake: '<path '+S+' d="M50 140 C80 100 60 70 100 70 C140 70 120 110 150 90 C165 80 165 60 150 58" stroke-width="10"/>'+
           '<circle fill="#111" cx="150" cy="62" r="4"/>',
    sock:  '<path '+SF+' d="M75 45 L105 45 L105 105 C105 115 110 122 122 128 L150 142 C158 146 156 158 146 158 L95 158 C82 158 75 150 75 138 Z"/>'+
           '<path '+S+' d="M75 60 L105 60"/>',
    spoon: '<ellipse '+SF+' cx="100" cy="70" rx="26" ry="34"/>'+
           '<path '+SF+' d="M92 102 L108 102 L104 160 C102 164 98 164 96 160 Z"/>',
    star:  '<path '+SF+' d="M100 45 L116 88 L162 88 L125 116 L140 160 L100 132 L60 160 L75 116 L38 88 L84 88 Z"/>',
    sun:   '<circle '+SF+' cx="100" cy="100" r="34"/>'+
           '<path '+S+' d="M100 45 L100 30 M100 170 L100 155 M155 100 L170 100 M30 100 L45 100 M139 61 L150 50 M50 150 L61 139 M139 139 L150 150 M50 50 L61 61"/>',
    table: '<path '+S+' d="M45 80 L155 80 M52 80 L52 155 M148 80 L148 155 M70 80 L70 130 M130 80 L130 130"/>'+
           '<path '+SF+' d="M40 70 L160 70 L160 82 L40 82 Z"/>',
    tree:  '<path '+SF+' d="M100 45 C70 60 65 95 85 100 C65 110 70 140 100 138 C130 140 135 110 115 100 C135 95 130 60 100 45 Z"/>'+
           '<path '+SF+' d="M92 135 L108 135 L108 162 L92 162 Z"/>',
    truck: '<path '+SF+' d="M40 100 L110 100 L110 135 L40 135 Z"/>'+
           '<path '+SF+' d="M110 110 L140 110 L160 128 L160 135 L110 135 Z"/>'+
           '<circle '+SF+' cx="62" cy="138" r="13"/>'+
           '<circle '+SF+' cx="140" cy="138" r="13"/>',
    umbrella:'<path '+SF+' d="M45 105 C45 70 70 55 100 55 C130 55 155 70 155 105 C135 92 122 92 100 100 C78 92 65 92 45 105 Z"/>'+
           '<path '+S+' d="M100 100 L100 150 C100 160 88 160 85 150"/>',
    watch: '<circle '+SF+' cx="100" cy="100" r="34"/>'+
           '<path '+SF+' d="M85 70 L82 45 L118 45 L115 70 M85 130 L82 155 L118 155 L115 130"/>'+
           '<line '+S+' x1="100" y1="100" x2="100" y2="80"/>'+
           '<line '+S+' x1="100" y1="100" x2="116" y2="108"/>',
    wheel: '<circle '+SF+' cx="100" cy="100" r="55"/>'+
           '<circle '+SF+' cx="100" cy="100" r="14"/>'+
           '<path '+S+' d="M100 45 L100 86 M100 114 L100 155 M45 100 L86 100 M114 100 L155 100 M62 62 L82 82 M118 118 L138 138 M138 62 L118 82 M82 118 L62 138"/>',
    window:'<rect '+SF+' x="55" y="50" width="90" height="110"/>'+
           '<path '+S+' d="M100 50 L100 160 M55 105 L145 105"/>',
  };
  function listNames(){ return Object.keys(O); }
  function svgFor(name){
    if (!O[name]) return null;
    return '<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg" style="background:#fff;border-radius:4px;">' + O[name] + '</svg>';
  }
  // Draw n distinct objects (shuffled). Returns array of
  // { kind:'svg-object', markup, key:name } compatible with SPR/MTS.
  function draw(n){
    var names = Object.keys(O).slice();
    for (var i = names.length - 1; i > 0; i--) {
      var j = Math.floor(Math.random() * (i + 1));
      var t = names[i]; names[i] = names[j]; names[j] = t;
    }
    if (names.length < n) return null;
    return names.slice(0, n).map(function(nm){
      return { kind:'svg', markup: svgFor(nm), key: nm,
               norm: (window.SNODGRASS_NORMS && window.SNODGRASS_NORMS[nm]) || null,
               source: 'objects' };
    });
  }
  return { listNames: listNames, svgFor: svgFor, draw: draw, count: Object.keys(O).length };
})();

window.SPR_StimGen = (function(){
  var SHAPES = ['circle','square','triangle','diamond','hexagon','star','cross','blob'];
  var PATTERNS = ['solid','stripe-h','stripe-v','stripe-d','dots','grid','ring'];
  // Distinct, high-saturation palette chosen for visual distinctness across
  // ~250 combinations; pulled from a curated wheel to avoid metameric clashes.
  var COLORS = [
    '#e74c3c','#3498db','#2ecc71','#f1c40f','#9b59b6','#e67e22','#1abc9c',
    '#34495e','#d35400','#27ae60','#2980b9','#8e44ad','#16a085','#c0392b',
    '#f39c12','#7f8c8d','#bdc3c7','#52be80','#ec7063','#5dade2','#af7ac5',
    '#48c9b0','#f7dc6f','#dc7633','#76448a','#1f618d','#117a65','#922b21'
  ];

  function _shape(svgInner, color, pattern, idx){
    var pid = 'pat-' + idx;
    var fillRef = 'url(#' + pid + ')';
    var defs = '<defs>';
    if (pattern === 'solid') {
      defs += '<pattern id="' + pid + '" width="100" height="100" patternUnits="userSpaceOnUse"><rect width="100" height="100" fill="' + color + '"/></pattern>';
    } else if (pattern === 'stripe-h') {
      defs += '<pattern id="' + pid + '" width="16" height="16" patternUnits="userSpaceOnUse"><rect width="16" height="16" fill="' + color + '"/><rect width="16" height="6" fill="#0d1622" opacity="0.5"/></pattern>';
    } else if (pattern === 'stripe-v') {
      defs += '<pattern id="' + pid + '" width="16" height="16" patternUnits="userSpaceOnUse"><rect width="16" height="16" fill="' + color + '"/><rect width="6" height="16" fill="#0d1622" opacity="0.5"/></pattern>';
    } else if (pattern === 'stripe-d') {
      defs += '<pattern id="' + pid + '" width="20" height="20" patternUnits="userSpaceOnUse" patternTransform="rotate(45)"><rect width="20" height="20" fill="' + color + '"/><rect width="20" height="6" fill="#0d1622" opacity="0.5"/></pattern>';
    } else if (pattern === 'dots') {
      defs += '<pattern id="' + pid + '" width="18" height="18" patternUnits="userSpaceOnUse"><rect width="18" height="18" fill="' + color + '"/><circle cx="9" cy="9" r="3.5" fill="#0d1622" opacity="0.55"/></pattern>';
    } else if (pattern === 'grid') {
      defs += '<pattern id="' + pid + '" width="20" height="20" patternUnits="userSpaceOnUse"><rect width="20" height="20" fill="' + color + '"/><path d="M0 0 L20 0 M0 0 L0 20" stroke="#0d1622" stroke-width="2" opacity="0.55"/></pattern>';
    } else if (pattern === 'ring') {
      defs += '<pattern id="' + pid + '" width="30" height="30" patternUnits="userSpaceOnUse"><rect width="30" height="30" fill="' + color + '"/><circle cx="15" cy="15" r="9" fill="none" stroke="#0d1622" stroke-width="3" opacity="0.55"/></pattern>';
    }
    defs += '</defs>';
    return defs + svgInner.replace(/__FILL__/g, fillRef);
  }
  function _shapeMarkup(shape){
    // Each shape draws into a 200x200 viewBox, centered at (100,100)
    switch(shape){
      case 'circle':   return '<circle cx="100" cy="100" r="80" fill="__FILL__" stroke="#0d1622" stroke-width="3"/>';
      case 'square':   return '<rect x="22" y="22" width="156" height="156" fill="__FILL__" stroke="#0d1622" stroke-width="3" rx="6"/>';
      case 'triangle': return '<polygon points="100,18 182,170 18,170" fill="__FILL__" stroke="#0d1622" stroke-width="3" stroke-linejoin="round"/>';
      case 'diamond':  return '<polygon points="100,18 182,100 100,182 18,100" fill="__FILL__" stroke="#0d1622" stroke-width="3" stroke-linejoin="round"/>';
      case 'hexagon':  return '<polygon points="100,18 174,60 174,140 100,182 26,140 26,60" fill="__FILL__" stroke="#0d1622" stroke-width="3" stroke-linejoin="round"/>';
      case 'star':     return '<polygon points="100,18 122,76 184,76 134,114 154,176 100,138 46,176 66,114 16,76 78,76" fill="__FILL__" stroke="#0d1622" stroke-width="3" stroke-linejoin="round"/>';
      case 'cross':    return '<polygon points="74,18 126,18 126,74 182,74 182,126 126,126 126,182 74,182 74,126 18,126 18,74 74,74" fill="__FILL__" stroke="#0d1622" stroke-width="3" stroke-linejoin="round"/>';
      case 'blob':     return '<path d="M100 20 C150 15, 185 50, 180 105 C175 160, 130 188, 80 180 C30 172, 12 130, 25 85 C38 40, 70 25, 100 20 Z" fill="__FILL__" stroke="#0d1622" stroke-width="3" stroke-linejoin="round"/>';
    }
    return '';
  }
  // Combo of (shape, color, pattern) → up to 8 × 28 × 7 = 1568 distinct stims.
  // We pick at random without replacement up to the requested count.
  function gen(n, seed){
    var combos = [];
    for (var si = 0; si < SHAPES.length; si++) {
      for (var ci = 0; ci < COLORS.length; ci++) {
        for (var pi = 0; pi < PATTERNS.length; pi++) {
          combos.push({s:SHAPES[si], c:COLORS[ci], p:PATTERNS[pi]});
        }
      }
    }
    // Deterministic shuffle for the seed (so a given seed always gives the
    // same item order, useful for re-running an identical practice block).
    var rng = seed ? _seededRng(seed) : Math.random;
    for (var i = combos.length - 1; i > 0; i--) {
      var j = Math.floor(rng() * (i + 1));
      var tmp = combos[i]; combos[i] = combos[j]; combos[j] = tmp;
    }
    return combos.slice(0, n).map(function(combo, idx){
      var inner = _shapeMarkup(combo.s);
      var svg = '<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">' +
                _shape(inner, combo.c, combo.p, idx) +
                '</svg>';
      return { kind:'svg', markup: svg, key: combo.s + '-' + combo.c + '-' + combo.p };
    });
  }
  function _seededRng(seed){
    var s = seed >>> 0;
    return function(){
      s = (s * 1664525 + 1013904223) >>> 0;
      return s / 4294967296;
    };
  }
  return { gen: gen };
})();

// ──────────────────────────────────────────────────────────────────────
// SPR — Visual Serial Probe Recognition (Sands & Wright, 1980)
// ──────────────────────────────────────────────────────────────────────
window._SPR = null;
function startSPR(isPractice){
  // List lengths: practice uses short 4-item lists; main reads the
  // checkbox row on the SPR intro screen (defaults 10 + 20). Each checked
  // length contributes 3 blocks so the serial position function has enough
  // probes per position.
  var listLengths;
  if (isPractice) {
    listLengths = [4, 4, 4];
  } else {
    var chosen = _sprReadListLengths('spr');   // e.g. [10, 20]
    listLengths = [];
    chosen.forEach(function(L){ listLengths.push(L, L, L); });
    if (!listLengths.length) listLengths = [10, 10, 10, 20, 20, 20];
  }
  var STUDY_MS = 1000;     // item presentation duration
  var ISI_MS   = 300;      // fixation-cross interval between items (R12)
  var RETN_MS  = 1000;     // retention interval before probe
  var FB_MS    = 600;      // feedback duration

  // Build trial sequence: for each block we draw (listLen + 1) items, study
  // (listLen) of them, then probe with either a list item or the unused one.
  var blocks = listLengths.map(function(listLen){
    var probeIsIn = Math.random() < 0.5;
    var probePos  = probeIsIn ? Math.floor(Math.random()*listLen) + 1 : null;  // 1-indexed
    return { listLen: listLen, probeIsIn: probeIsIn, probePos: probePos };
  });
  _SPR = {
    active:true, isPractice:isPractice, blocks:blocks, blockIdx:0,
    log:[], _timers:[], waiting:false, responded:false, stimOn:0,
    current:null, items:null, probe:null,
    STUDY_MS:STUDY_MS, ISI_MS:ISI_MS, RETN_MS:RETN_MS, FB_MS:FB_MS
  };
  function T(fn, ms){ var t = setTimeout(fn, ms); _SPR._timers.push(t); return t; }
  _SPR.T = T;
  _SPR.clearT = function(){ _SPR._timers.forEach(clearTimeout); _SPR._timers = []; };

  hideAll();
  $('sprScreen').style.display = 'flex';
  $('sprScreen').classList.add('active');
  $('sprPracticeBanner').style.display = isPractice ? 'block' : 'none';
  $('sprProgressBar').style.width = '0%';
  $('sprStudyPhase').style.display    = 'none';
  $('sprRetentionPhase').style.display= 'none';
  $('sprProbePhase').style.display    = 'none';
  $('sprResultsPhase').style.display  = 'none';
  $('sprFeedback').textContent = '';
  $('si-task').textContent = 'SPR' + (isPractice ? ' (PRAC)' : '');
  $('exportBtn').disabled = true;

  Trigger.send(10, 'SPR_session_start', {
    task:'SPR', practice:isPractice, blocks:blocks.length,
    list_lengths:listLengths, source: (typeof CustomImages !== 'undefined' && CustomImages.hasPool('spr')) ? 'custom' : 'procedural'
  });

  T(_sprNextBlock, 800);
}

function _sprNextBlock(){
  if (!_SPR || !_SPR.active) return;
  if (_SPR.blockIdx >= _SPR.blocks.length){ _sprFinish(); return; }
  var b = _SPR.blocks[_SPR.blockIdx];
  _SPR.current = b;
  // Draw (listLen + 1) stimuli: 0..listLen-1 are the study list, last is
  // a held-out foil used as the probe when probeIsIn=false.
  _SPR.items = _sprDrawStims(b.listLen + 1);
  if (!_SPR.items || _SPR.items.length < b.listLen + 1){
    // Couldn't get enough stimuli — shouldn't happen with procedural,
    // could happen if user loaded a tiny custom pool.
    _sprFinish();
    return;
  }
  _SPR.probe = b.probeIsIn ? _SPR.items[b.probePos - 1] : _SPR.items[b.listLen];
  $('spr-listlen').textContent = 'LIST = ' + b.listLen;
  $('spr-trial').textContent   = 'Block ' + (_SPR.blockIdx + 1) + '/' + _SPR.blocks.length;
  _sprStudyItem(0);
}

function _sprDrawStims(n){
  // Stimulus source is chosen explicitly via the intro radio (_sprStimSource()):
  //   'objects'   → built-in line-art object set
  //   'shapes'    → procedural shape generator
  //   'snodgrass' → user-loaded Snodgrass & Vanderwart pool
  //   'spr'       → user-loaded generic image pool
  // If the chosen pool is unavailable/too small, falls back gracefully.
  function _fromPool(poolName){
    if (typeof CustomImages === 'undefined' || !CustomImages.hasPool(poolName)) return null;
    var pool = CustomImages.getPool(poolName).slice();
    if (pool.length < n) return null;
    for (var i = pool.length - 1; i > 0; i--) {
      var j = Math.floor(Math.random() * (i + 1));
      var tmp = pool[i]; pool[i] = pool[j]; pool[j] = tmp;
    }
    return pool.slice(0, n).map(function(it){
      var norm = (poolName === 'snodgrass' && CustomImages.snodgrassNorm)
        ? CustomImages.snodgrassNorm(it.name) : null;
      return {
        kind:'image', dataUrl: it.dataUrl,
        key: norm ? norm.name : it.name,
        norm: norm || null,
        source: poolName
      };
    });
  }
  function _fromObjects(){
    if (window.SPR_Objects && n <= window.SPR_Objects.count) {
      var objs = window.SPR_Objects.draw(n);
      if (objs) return objs;
    }
    return null;
  }
  var src = _sprStimSource();
  var result = null;
  if (src === 'snodgrass') result = _fromPool('snodgrass');
  else if (src === 'spr')  result = _fromPool('spr');
  else if (src === 'objects') result = _fromObjects();
  else if (src === 'shapes')  result = window.SPR_StimGen.gen(n);
  if (result) return result;
  // Graceful fallback chain if the chosen source can't supply n items:
  // objects → procedural shapes (always works).
  return _fromObjects() || window.SPR_StimGen.gen(n);
}

// Resolve the chosen stimulus source from the SPR/MTS intro radios.
// Defaults to 'objects'. Radio values: objects | shapes | snodgrass | spr.
function _sprStimSource(){
  var el = document.querySelector('input[name="spr-stimset"]:checked, input[name="mts-stimset"]:checked');
  return el ? el.value : 'objects';
}

function _sprRenderStim(box, stim){
  if (!stim) { box.innerHTML = ''; return; }
  if (stim.kind === 'image') {
    box.innerHTML = '<img src="' + stim.dataUrl + '" alt="">';
  } else {
    box.innerHTML = stim.markup;
  }
}

function _sprStudyItem(idx){
  if (!_SPR || !_SPR.active) return;
  var b = _SPR.current;
  if (idx >= b.listLen){
    _sprRetention();
    return;
  }
  $('sprStudyPhase').style.display     = 'flex';
  $('sprRetentionPhase').style.display = 'none';
  $('sprProbePhase').style.display     = 'none';
  $('sprStudyLabel').textContent = 'STUDY · ITEM ' + (idx + 1) + ' OF ' + b.listLen;
  $('spr-phase').textContent = 'STUDY';
  _sprRenderStim($('sprStudyStim'), _SPR.items[idx]);
  triggerFlash();
  Trigger.send(30, 'SPR_list_item', { task:'SPR', block:_SPR.blockIdx+1, position:idx+1, item:_SPR.items[idx].key });
  _SPR.T(function(){
    // R12: show a fixation cross during the inter-item interval rather
    // than a blank box, to stabilise gaze between list items.
    if (_SPR.ISI_MS > 0) {
      $('sprStudyStim').innerHTML = '<span style="font-size:3rem;color:var(--dim);">+</span>';
      _SPR.T(function(){ _sprStudyItem(idx + 1); }, _SPR.ISI_MS);
    } else {
      _sprRenderStim($('sprStudyStim'), null);
      _sprStudyItem(idx + 1);
    }
  }, _SPR.STUDY_MS);
}

function _sprRetention(){
  $('sprStudyPhase').style.display     = 'none';
  $('sprRetentionPhase').style.display = 'flex';
  $('sprProbePhase').style.display     = 'none';
  $('spr-phase').textContent = 'RETENTION';
  _SPR.T(_sprProbe, _SPR.RETN_MS);
}

function _sprProbe(){
  if (!_SPR || !_SPR.active) return;
  $('sprStudyPhase').style.display     = 'none';
  $('sprRetentionPhase').style.display = 'none';
  $('sprProbePhase').style.display     = 'flex';
  $('spr-phase').textContent = 'PROBE';
  $('sprFeedback').textContent = '';
  _sprRenderStim($('sprProbeStim'), _SPR.probe);
  _SPR.waiting = true;
  _SPR.responded = false;
  _SPR.stimOn = performance.now();
  triggerFlash();
  Trigger.send(40, 'SPR_probe', {
    task:'SPR', block:_SPR.blockIdx+1, probe_in:_SPR.current.probeIsIn,
    probe_pos:_SPR.current.probePos, probe:_SPR.probe.key
  });
}

window.sprRespond = function(yesNo){
  if (!_SPR || !_SPR.active || !_SPR.waiting || _SPR.responded) return;
  _SPR.responded = true;
  _SPR.waiting = false;
  var rt = +(performance.now() - _SPR.stimOn).toFixed(1);
  var b = _SPR.current;
  var correct = (yesNo === b.probeIsIn);
  var outcome = b.probeIsIn
    ? (yesNo ? 'hit'  : 'miss')
    : (yesNo ? 'fa'   : 'cr');
  // Trigger codes: 50 hit, 51 miss, 52 FA, 53 CR
  var tcode = {hit:50, miss:51, fa:52, cr:53}[outcome];
  Trigger.send(tcode, 'SPR_' + outcome, {
    task:'SPR', block:_SPR.blockIdx+1, response:yesNo,
    probe_in:b.probeIsIn, probe_pos:b.probePos, correct:correct, rt:rt
  });
  _SPR.log.push({
    block: _SPR.blockIdx + 1, list_len: b.listLen,
    probe_in: b.probeIsIn, probe_pos: b.probePos,
    response: yesNo, outcome: outcome, correct: correct, rt: rt,
    probe_name: (_SPR.probe && _SPR.probe.key) || '',
    probe_norm: (_SPR.probe && _SPR.probe.norm) ? 1 : 0
  });
  var fb = $('sprFeedback');
  fb.textContent = correct ? rt + 'ms ✓' : rt + 'ms ✗ — was ' + (b.probeIsIn ? 'IN list' : 'NOT in list');
  fb.className = 'feedback ' + (correct ? 'ok' : 'err');
  $('sprProgressBar').style.width = ((_SPR.blockIdx + 1) / _SPR.blocks.length * 100).toFixed(1) + '%';
  _SPR.T(function(){
    _SPR.blockIdx++;
    _sprNextBlock();
  }, _SPR.FB_MS);
};

function _sprFinish(){
  if (!_SPR) return;
  _SPR.clearT(); _SPR.active = false;
  $('sprStudyPhase').style.display     = 'none';
  $('sprRetentionPhase').style.display = 'none';
  $('sprProbePhase').style.display     = 'none';
  Trigger.send(11, 'SPR_session_end', { task:'SPR' });

  if (_SPR.isPractice){
    var acc = _SPR.log.length ? (_SPR.log.filter(function(r){return r.correct;}).length / _SPR.log.length * 100).toFixed(0) : '—';
    $('pcStats').innerHTML = 'BLOCKS <span>' + _SPR.log.length + '</span> · ACC <span>' + acc + '%</span>';
    hideAll();
    $('practiceComplete').style.display = 'flex';
    return;
  }

  window._spr_log = _SPR.log;
  $('exportBtn').disabled = false;

  var n = _SPR.log.length;
  var hits = _SPR.log.filter(function(r){return r.outcome==='hit';}).length;
  var miss = _SPR.log.filter(function(r){return r.outcome==='miss';}).length;
  var fas  = _SPR.log.filter(function(r){return r.outcome==='fa';}).length;
  var crs  = _SPR.log.filter(function(r){return r.outcome==='cr';}).length;
  var acc  = n ? (hits + crs) / n : 0;
  var hitRate = (hits + miss) ? hits / (hits + miss) : 0;
  var faRate  = (fas  + crs)  ? fas  / (fas  + crs)  : 0;
  // d' with Macmillan-Creelman 0.5/N adjustment to avoid Infinity
  function _z(p){ var c = Math.max(0.001, Math.min(0.999, p));
    // Probit via Acklam approximation
    var a = [-39.6968302866538, 220.946098424521, -275.928510446969, 138.357751867269, -30.6647980661472, 2.50662827745924];
    var b = [-54.4760987982241, 161.585836858041, -155.698979859887, 66.8013118877197, -13.2806815528857];
    var cc = [-7.78489400243029e-03, -0.322396458041136, -2.40075827716184, -2.54973253934373, 4.37466414146497, 2.93816398269878];
    var d = [7.78469570904146e-03, 0.32246712907004, 2.445134137143, 3.75440866190742];
    var pLow = 0.02425, pHigh = 1 - pLow;
    var x;
    if (c < pLow){
      var q = Math.sqrt(-2*Math.log(c));
      x = (((((cc[0]*q+cc[1])*q+cc[2])*q+cc[3])*q+cc[4])*q+cc[5])/((((d[0]*q+d[1])*q+d[2])*q+d[3])*q+1);
    } else if (c <= pHigh){
      var q2 = c - 0.5; var r = q2*q2;
      x = (((((a[0]*r+a[1])*r+a[2])*r+a[3])*r+a[4])*r+a[5])*q2/(((((b[0]*r+b[1])*r+b[2])*r+b[3])*r+b[4])*r+1);
    } else {
      var q3 = Math.sqrt(-2*Math.log(1-c));
      x = -(((((cc[0]*q3+cc[1])*q3+cc[2])*q3+cc[3])*q3+cc[4])*q3+cc[5])/((((d[0]*q3+d[1])*q3+d[2])*q3+d[3])*q3+1);
    }
    return x;
  }
  var dprime = _z(hitRate) - _z(faRate);
  if (!isFinite(dprime)) dprime = NaN;

  $('sprMetrics').innerHTML =
    '<div class="vrt-metric"><div class="vm-val">' + (acc*100).toFixed(0) + '%</div><div class="vm-lbl">Overall Acc.</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + (hitRate*100).toFixed(0) + '%</div><div class="vm-lbl">Hit Rate</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + (faRate*100).toFixed(0) + '%</div><div class="vm-lbl">False Alarm</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + (isFinite(dprime) ? dprime.toFixed(2) : '—') + '</div><div class="vm-lbl">d-prime</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + n + '</div><div class="vm-lbl">Blocks</div></div>';

  _sprRenderPositionChart('sprPositionChart', _SPR.log);

  // Per-block table
  $('sprResultsGrid').innerHTML = _SPR.log.map(function(r,i){
    var pos = r.probe_in ? (r.probe_pos + '/' + r.list_len) : '—';
    return '<div class="vrt-result-cell ' + (r.correct ? 'ok' : 'err') + '">' +
           '<div class="vrc-trial">B' + r.block + ' · L' + r.list_len + '</div>' +
           '<div class="vrc-mid">' + (r.probe_in ? 'IN ' + pos : 'FOIL') + '</div>' +
           '<div class="vrc-rt">' + r.rt + 'ms</div>' +
           '</div>';
  }).join('');

  $('sprResultsPhase').style.display = 'flex';
  updateSidebar();
}

function _sprRenderPositionChart(canvasId, log){
  var canvas = document.getElementById(canvasId);
  if (!canvas) return;
  var ctx = canvas.getContext('2d');
  var W = canvas.width, H = canvas.height;
  ctx.clearRect(0,0,W,H);
  // Group by serial position (only IN-list probes contribute)
  var byPos = {};
  log.forEach(function(r){
    if (!r.probe_in) return;
    var key = r.probe_pos;
    if (!byPos[key]) byPos[key] = { n:0, correct:0, list_len:r.list_len };
    byPos[key].n++;
    if (r.correct) byPos[key].correct++;
  });
  var keys = Object.keys(byPos).map(Number).sort(function(a,b){return a-b;});
  if (!keys.length) {
    ctx.fillStyle = 'rgba(150,170,180,0.5)';
    ctx.font = '12px "Source Code Pro", monospace';
    ctx.textAlign = 'center';
    ctx.fillText('(no in-list probes this session)', W/2, H/2);
    return;
  }
  var padL = 36, padR = 16, padT = 14, padB = 24;
  var pW = W - padL - padR, pH = H - padT - padB;
  // Axes
  ctx.strokeStyle = 'rgba(120,140,160,0.4)';
  ctx.lineWidth = 1;
  ctx.beginPath(); ctx.moveTo(padL, padT); ctx.lineTo(padL, padT + pH); ctx.lineTo(padL + pW, padT + pH); ctx.stroke();
  // 50% reference line
  ctx.strokeStyle = 'rgba(120,140,160,0.18)';
  ctx.setLineDash([3,4]);
  ctx.beginPath();
  ctx.moveTo(padL, padT + pH * 0.5);
  ctx.lineTo(padL + pW, padT + pH * 0.5);
  ctx.stroke();
  ctx.setLineDash([]);
  // Y-axis labels
  ctx.fillStyle = 'rgba(150,170,180,0.7)';
  ctx.font = '10px "Source Code Pro", monospace';
  ctx.textAlign = 'right';
  ['0','50','100'].forEach(function(lbl,i){
    var y = padT + pH * (1 - i*0.5);
    ctx.fillText(lbl + '%', padL - 6, y + 3);
  });
  // Plot
  var maxPos = keys[keys.length-1];
  ctx.strokeStyle = 'rgba(212,165,32,0.85)';
  ctx.fillStyle   = 'rgba(212,165,32,0.85)';
  ctx.lineWidth = 2;
  ctx.beginPath();
  keys.forEach(function(k, idx){
    var b = byPos[k];
    var p = b.n ? b.correct / b.n : 0;
    var x = padL + (k - 1) / Math.max(1, maxPos - 1) * pW;
    var y = padT + (1 - p) * pH;
    if (idx === 0) ctx.moveTo(x, y); else ctx.lineTo(x, y);
  });
  ctx.stroke();
  keys.forEach(function(k){
    var b = byPos[k];
    var p = b.n ? b.correct / b.n : 0;
    var x = padL + (k - 1) / Math.max(1, maxPos - 1) * pW;
    var y = padT + (1 - p) * pH;
    ctx.beginPath(); ctx.arc(x, y, 4, 0, Math.PI*2); ctx.fill();
  });
  // X-axis labels
  ctx.textAlign = 'center';
  ctx.fillStyle = 'rgba(150,170,180,0.7)';
  keys.forEach(function(k){
    var x = padL + (k - 1) / Math.max(1, maxPos - 1) * pW;
    ctx.fillText(String(k), x, padT + pH + 14);
  });
  ctx.fillStyle = 'rgba(120,140,160,0.6)';
  ctx.fillText('serial position', padL + pW/2, padT + pH + 22);
}

window.sprExportCSV = function(){
  var log = window._spr_log; if (!log || !log.length) return;
  var rows = ['block,list_len,probe_in_list,probe_position,response,outcome,correct,rt_ms,probe_name,sv_norm_matched'];
  log.forEach(function(r){
    var nm = (r.probe_name || '').replace(/,/g, ' ');
    rows.push([r.block, r.list_len, r.probe_in?1:0, r.probe_pos==null?'':r.probe_pos,
               r.response?'YES':'NO', r.outcome, r.correct?1:0, r.rt, nm, r.probe_norm?1:0].join(','));
  });
  var blob = new Blob([rows.join('\n')], {type:'text/csv'});
  var a = document.createElement('a');
  a.href = URL.createObjectURL(blob);
  a.download = 'spr_' + Date.now() + '.csv';
  a.click();
};

// Keyboard + mouse input for SPR probe phase
document.addEventListener('keydown', function(e){
  if (!_SPR || !_SPR.active || !_SPR.waiting) return;
  if (e.key === 'f' || e.key === 'F') { e.preventDefault(); sprRespond(true);  }
  else if (e.key === 'j' || e.key === 'J') { e.preventDefault(); sprRespond(false); }
});
// Left-click on probe stim = YES; right-click anywhere on probe phase = NO
document.addEventListener('contextmenu', function(e){
  if (_SPR && _SPR.active && _SPR.waiting) {
    var probePh = document.getElementById('sprProbePhase');
    if (probePh && probePh.contains(e.target)) {
      e.preventDefault(); sprRespond(false);
    }
  }
  if (_SPRA && _SPRA.active && _SPRA.waiting) {
    var probePhA = document.getElementById('spraProbePhase');
    if (probePhA && probePhA.contains(e.target)) {
      e.preventDefault(); spraRespond(false);
    }
  }
});
// Click on probe stimulus image/box = YES (mouse-left equivalent of F)
document.addEventListener('click', function(e){
  if (_SPR && _SPR.active && _SPR.waiting) {
    var box = document.getElementById('sprProbeStim');
    if (box && box.contains(e.target)) { e.preventDefault(); sprRespond(true); }
  }
  if (_SPRA && _SPRA.active && _SPRA.waiting) {
    // Click the pulse area to replay/respond YES on SPR-A
    var pulses = document.querySelectorAll('#spraProbePhase .spra-pulse');
    pulses.forEach(function(p){
      if (p.contains(e.target)) { e.preventDefault(); spraRespond(true); }
    });
  }
});

// ──────────────────────────────────────────────────────────────────────
// SPR-A — Auditory Serial Probe Recognition
// Uses CustomAudio's spra-pool slot (set of N user-loaded sounds).
// ──────────────────────────────────────────────────────────────────────
window._SPRA = null;
function startSPRA(isPractice){
  // Check we have a pool
  var pool = (typeof CustomAudio !== 'undefined' && CustomAudio.getSpraPool) ? CustomAudio.getSpraPool() : [];
  // Need at least listLen+1 sounds for the largest block
  var listLengths;
  if (isPractice) {
    listLengths = [3, 3];
  } else {
    var chosen = _sprReadListLengths('spra');
    listLengths = [];
    chosen.forEach(function(L){ listLengths.push(L, L); });
    if (!listLengths.length) listLengths = [6, 6, 10, 10];
  }
  var minNeeded = Math.max.apply(null, listLengths) + 1;
  if (pool.length < minNeeded){
    hideAll();
    $('spraScreen').style.display = 'flex';
    $('spraScreen').classList.add('active');
    $('spraPracticeBanner').style.display = isPractice ? 'block' : 'none';
    $('spraStudyPhase').style.display     = 'none';
    $('spraRetentionPhase').style.display = 'none';
    $('spraProbePhase').style.display     = 'none';
    $('spraResultsPhase').style.display   = 'none';
    $('spraNoAssetsPhase').style.display  = 'flex';
    $('spra-listlen').textContent = 'POOL: ' + pool.length + ' / ≥' + minNeeded + ' needed';
    $('si-task').textContent = 'SPR-A (no pool)';
    return;
  }

  var STUDY_MS = 800;   // gap between sound onsets after each plays out
  var RETN_MS  = 1000;
  var FB_MS    = 700;
  var blocks = listLengths.map(function(listLen){
    var probeIsIn = Math.random() < 0.5;
    var probePos  = probeIsIn ? Math.floor(Math.random()*listLen) + 1 : null;
    return { listLen: listLen, probeIsIn: probeIsIn, probePos: probePos };
  });
  _SPRA = {
    active:true, isPractice:isPractice, blocks:blocks, blockIdx:0,
    log:[], _timers:[], waiting:false, responded:false, stimOn:0,
    current:null, items:null, probe:null,
    STUDY_MS:STUDY_MS, RETN_MS:RETN_MS, FB_MS:FB_MS
  };
  function T(fn, ms){ var t = setTimeout(fn, ms); _SPRA._timers.push(t); return t; }
  _SPRA.T = T;
  _SPRA.clearT = function(){ _SPRA._timers.forEach(clearTimeout); _SPRA._timers = []; };

  hideAll();
  $('spraScreen').style.display = 'flex';
  $('spraScreen').classList.add('active');
  $('spraPracticeBanner').style.display = isPractice ? 'block' : 'none';
  $('spraProgressBar').style.width = '0%';
  $('spraNoAssetsPhase').style.display  = 'none';
  $('spraStudyPhase').style.display     = 'none';
  $('spraRetentionPhase').style.display = 'none';
  $('spraProbePhase').style.display     = 'none';
  $('spraResultsPhase').style.display   = 'none';
  $('spraFeedback').textContent = '';
  $('si-task').textContent = 'SPR-A' + (isPractice ? ' (PRAC)' : '');
  $('exportBtn').disabled = true;

  Trigger.send(10, 'SPRA_session_start', {
    task:'SPR-A', practice:isPractice, blocks:blocks.length,
    list_lengths:listLengths, pool_size:pool.length
  });

  _SPRA.T(_spraNextBlock, 800);
}

function _spraNextBlock(){
  if (!_SPRA || !_SPRA.active) return;
  if (_SPRA.blockIdx >= _SPRA.blocks.length){ _spraFinish(); return; }
  var b = _SPRA.current = _SPRA.blocks[_SPRA.blockIdx];
  var pool = CustomAudio.getSpraPool().slice();
  // Shuffle and take (listLen + 1)
  for (var i = pool.length - 1; i > 0; i--) {
    var j = Math.floor(Math.random() * (i + 1));
    var tmp = pool[i]; pool[i] = pool[j]; pool[j] = tmp;
  }
  _SPRA.items = pool.slice(0, b.listLen + 1);
  _SPRA.probe = b.probeIsIn ? _SPRA.items[b.probePos - 1] : _SPRA.items[b.listLen];
  $('spra-listlen').textContent = 'LIST = ' + b.listLen;
  $('spra-trial').textContent   = 'Block ' + (_SPRA.blockIdx + 1) + '/' + _SPRA.blocks.length;
  _spraStudyItem(0);
}

function _spraStudyItem(idx){
  if (!_SPRA || !_SPRA.active) return;
  var b = _SPRA.current;
  if (idx >= b.listLen){ _spraRetention(); return; }
  $('spraStudyPhase').style.display     = 'flex';
  $('spraRetentionPhase').style.display = 'none';
  $('spraProbePhase').style.display     = 'none';
  $('spraStudyLabel').textContent = 'STUDY · ITEM ' + (idx + 1) + ' OF ' + b.listLen;
  $('spra-phase').textContent = 'STUDY';
  $('spraStudyName').textContent = _SPRA.items[idx].name || ('sound ' + (idx+1));
  // Play sound
  var item = _SPRA.items[idx];
  CustomAudio.playBuffer(item.buffer, 0.4);
  triggerFlash();
  Trigger.send(30, 'SPRA_list_item', { task:'SPR-A', block:_SPRA.blockIdx+1, position:idx+1, item:item.name });
  // After the sound finishes, show a fixation gap (silent) before next item.
  var soundMs = (item.duration || 0.5) * 1000;
  _SPRA.T(function(){
    // R12: fixation cross during the silent inter-item interval
    if (_SPRA.active) {
      $('spraStudyName').textContent = '+';
    }
    _SPRA.T(function(){ _spraStudyItem(idx + 1); }, _SPRA.STUDY_MS);
  }, soundMs);
}

function _spraRetention(){
  $('spraStudyPhase').style.display     = 'none';
  $('spraRetentionPhase').style.display = 'flex';
  $('spraProbePhase').style.display     = 'none';
  $('spra-phase').textContent = 'RETENTION';
  _SPRA.T(_spraProbe, _SPRA.RETN_MS);
}

function _spraProbe(){
  if (!_SPRA || !_SPRA.active) return;
  $('spraStudyPhase').style.display     = 'none';
  $('spraRetentionPhase').style.display = 'none';
  $('spraProbePhase').style.display     = 'flex';
  $('spra-phase').textContent = 'PROBE';
  $('spraFeedback').textContent = '';
  CustomAudio.playBuffer(_SPRA.probe.buffer, 0.4);
  _SPRA.waiting = true;
  _SPRA.responded = false;
  _SPRA.stimOn = performance.now();
  triggerFlash();
  Trigger.send(40, 'SPRA_probe', {
    task:'SPR-A', block:_SPRA.blockIdx+1, probe_in:_SPRA.current.probeIsIn,
    probe_pos:_SPRA.current.probePos, probe:_SPRA.probe.name
  });
}

window.spraRespond = function(yesNo){
  if (!_SPRA || !_SPRA.active || !_SPRA.waiting || _SPRA.responded) return;
  _SPRA.responded = true; _SPRA.waiting = false;
  var rt = +(performance.now() - _SPRA.stimOn).toFixed(1);
  var b = _SPRA.current;
  var correct = (yesNo === b.probeIsIn);
  var outcome = b.probeIsIn ? (yesNo?'hit':'miss') : (yesNo?'fa':'cr');
  var tcode = {hit:50, miss:51, fa:52, cr:53}[outcome];
  Trigger.send(tcode, 'SPRA_' + outcome, {
    task:'SPR-A', block:_SPRA.blockIdx+1, response:yesNo,
    probe_in:b.probeIsIn, probe_pos:b.probePos, correct:correct, rt:rt
  });
  _SPRA.log.push({
    block:_SPRA.blockIdx + 1, list_len:b.listLen,
    probe_in:b.probeIsIn, probe_pos:b.probePos,
    response:yesNo, outcome:outcome, correct:correct, rt:rt
  });
  var fb = $('spraFeedback');
  fb.textContent = correct ? rt + 'ms ✓' : rt + 'ms ✗ — was ' + (b.probeIsIn ? 'IN list' : 'NOT in list');
  fb.className = 'feedback ' + (correct ? 'ok' : 'err');
  $('spraProgressBar').style.width = ((_SPRA.blockIdx + 1) / _SPRA.blocks.length * 100).toFixed(1) + '%';
  _SPRA.T(function(){
    _SPRA.blockIdx++;
    _spraNextBlock();
  }, _SPRA.FB_MS);
};

function _spraFinish(){
  if (!_SPRA) return;
  _SPRA.clearT(); _SPRA.active = false;
  $('spraStudyPhase').style.display     = 'none';
  $('spraRetentionPhase').style.display = 'none';
  $('spraProbePhase').style.display     = 'none';
  Trigger.send(11, 'SPRA_session_end', { task:'SPR-A' });

  if (_SPRA.isPractice){
    var acc = _SPRA.log.length ? (_SPRA.log.filter(function(r){return r.correct;}).length / _SPRA.log.length * 100).toFixed(0) : '—';
    $('pcStats').innerHTML = 'BLOCKS <span>' + _SPRA.log.length + '</span> · ACC <span>' + acc + '%</span>';
    hideAll(); $('practiceComplete').style.display = 'flex';
    return;
  }

  window._spra_log = _SPRA.log;
  $('exportBtn').disabled = false;

  var n = _SPRA.log.length;
  var hits = _SPRA.log.filter(function(r){return r.outcome==='hit';}).length;
  var miss = _SPRA.log.filter(function(r){return r.outcome==='miss';}).length;
  var fas  = _SPRA.log.filter(function(r){return r.outcome==='fa';}).length;
  var crs  = _SPRA.log.filter(function(r){return r.outcome==='cr';}).length;
  var acc  = n ? (hits + crs) / n : 0;
  var hitRate = (hits + miss) ? hits / (hits + miss) : 0;
  var faRate  = (fas  + crs)  ? fas  / (fas  + crs)  : 0;

  $('spraMetrics').innerHTML =
    '<div class="vrt-metric"><div class="vm-val">' + (acc*100).toFixed(0) + '%</div><div class="vm-lbl">Overall Acc.</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + (hitRate*100).toFixed(0) + '%</div><div class="vm-lbl">Hit Rate</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + (faRate*100).toFixed(0) + '%</div><div class="vm-lbl">False Alarm</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + n + '</div><div class="vm-lbl">Blocks</div></div>';

  _sprRenderPositionChart('spraPositionChart', _SPRA.log);

  $('spraResultsGrid').innerHTML = _SPRA.log.map(function(r){
    var pos = r.probe_in ? (r.probe_pos + '/' + r.list_len) : '—';
    return '<div class="vrt-result-cell ' + (r.correct ? 'ok' : 'err') + '">' +
           '<div class="vrc-trial">B' + r.block + ' · L' + r.list_len + '</div>' +
           '<div class="vrc-mid">' + (r.probe_in ? 'IN ' + pos : 'FOIL') + '</div>' +
           '<div class="vrc-rt">' + r.rt + 'ms</div>' +
           '</div>';
  }).join('');

  $('spraResultsPhase').style.display = 'flex';
  updateSidebar();
}

window.spraExportCSV = function(){
  var log = window._spra_log; if (!log || !log.length) return;
  var rows = ['block,list_len,probe_in_list,probe_position,response,outcome,correct,rt_ms'];
  log.forEach(function(r){
    rows.push([r.block, r.list_len, r.probe_in?1:0, r.probe_pos==null?'':r.probe_pos,
               r.response?'YES':'NO', r.outcome, r.correct?1:0, r.rt].join(','));
  });
  var blob = new Blob([rows.join('\n')], {type:'text/csv'});
  var a = document.createElement('a');
  a.href = URL.createObjectURL(blob);
  a.download = 'spra_' + Date.now() + '.csv';
  a.click();
};

document.addEventListener('keydown', function(e){
  if (!_SPRA || !_SPRA.active || !_SPRA.waiting) return;
  if (e.key === 'f' || e.key === 'F') { e.preventDefault(); spraRespond(true);  }
  else if (e.key === 'j' || e.key === 'J') { e.preventDefault(); spraRespond(false); }
});
</script>

<!-- ──────────────────────────────────────────────────────────────────────
     MATCHING-TO-SAMPLE (MTS / DMTS) — R12
     Wright, Santiago, Sands et al. — simultaneous & delayed matching.
     A sample is shown; 2–4 comparison stimuli appear; pick the match.
     Reuses SPR's procedural shapes / CUSTOM IMAGES pool.
     ─────────────────────────────────────────────────────────────── -->
<style>
#mtsScreen .mts-sample-box{width:170px;height:170px;display:flex;align-items:center;justify-content:center;
  background:#060d14;border:2px solid rgba(212,180,86,0.55);border-radius:6px;margin:0 auto;}
#mtsScreen .mts-sample-box img{max-width:96%;max-height:96%;object-fit:contain;}
#mtsScreen .mts-sample-box svg{width:96%;height:96%;}
#mtsScreen .mts-comp-row{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;margin-top:8px;}
#mtsScreen .mts-comp{width:140px;height:140px;display:flex;align-items:center;justify-content:center;
  background:#060d14;border:2px solid rgba(200,168,75,0.4);border-radius:6px;cursor:pointer;
  position:relative;transition:all 0.12s ease;}
#mtsScreen .mts-comp:hover{border-color:var(--gold);box-shadow:0 0 18px rgba(212,165,32,0.18);}
#mtsScreen .mts-comp img{max-width:90%;max-height:90%;object-fit:contain;}
#mtsScreen .mts-comp svg{width:90%;height:90%;}
#mtsScreen .mts-comp-num{position:absolute;top:4px;left:6px;font-size:0.72rem;color:var(--dim);
  font-family:'Source Code Pro',monospace;}
#mtsScreen .mts-comp.correct{border-color:#7ed99a;box-shadow:0 0 18px rgba(126,217,154,0.3);}
#mtsScreen .mts-comp.wrong{border-color:#e57373;box-shadow:0 0 18px rgba(229,115,115,0.3);}
</style>

<div id="mtsScreen" class="task-screen spr-screen">
  <div class="practice-banner" id="mtsPracticeBanner" style="display:none">PRACTICE MODE</div>
  <div class="spr-header">
    <span class="spr-task-label">MATCHING-TO-SAMPLE</span>
    <span id="mts-trial" class="spr-meta">—</span>
    <span id="mts-phase" class="spr-meta">—</span>
    <span id="mts-mode-lbl" class="spr-meta">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="mtsProgressBar" style="width:0%"></div></div>

  <div id="mtsSamplePhase" style="display:none">
    <div class="spr-arena">
      <div class="spr-phase-label" style="color:rgba(212,180,86,0.75);">SAMPLE</div>
      <div class="mts-sample-box" id="mtsSampleStim"></div>
    </div>
  </div>

  <div id="mtsRetentionPhase" style="display:none">
    <div class="spr-arena">
      <div class="spr-phase-label retention">RETENTION</div>
      <div class="mts-sample-box" style="border-style:dashed;border-color:rgba(200,168,75,0.2);">
        <span style="font-size:3rem;color:var(--dim);">+</span>
      </div>
    </div>
  </div>

  <div id="mtsChoicePhase" style="display:none">
    <div class="spr-arena">
      <div class="spr-phase-label probe">CHOOSE THE MATCH</div>
      <div class="mts-sample-box" id="mtsSampleStimPersist" style="display:none;width:120px;height:120px;"></div>
      <div class="mts-comp-row" id="mtsCompRow"></div>
      <div class="feedback" id="mtsFeedback"></div>
    </div>
  </div>

  <div id="mtsResultsPhase" style="display:none">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">MATCHING-TO-SAMPLE — RESULTS</div>
      <div class="vrt-metrics" id="mtsMetrics"></div>
      <div class="vrt-results-grid" id="mtsResultsGrid"></div>
      <div style="display:flex;gap:12px;margin-top:8px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="mtsExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
  <div class="key-legend">
    <span class="key-legend-item"><span class="key-cap">1</span>–<span class="key-cap">4</span> / click — choose comparison</span>
  </div>
</div>

<script>
// ──────────────────────────────────────────────────────────────────────
// MATCHING-TO-SAMPLE (Wright, Santiago, Sands et al.)
// ──────────────────────────────────────────────────────────────────────
window._MTS = null;
function startMTS(isPractice){
  // Read mode + comparison count from intro options (defaults: simultaneous, 3)
  var modeEl = document.querySelector('input[name="mts-mode"]:checked');
  var ncEl   = document.querySelector('input[name="mts-ncomp"]:checked');
  var mode   = modeEl ? modeEl.value : 'simultaneous';
  var nComp  = ncEl ? parseInt(ncEl.value, 10) : 3;
  var nTrials = taskTrials('SNELLEN',6,20,isPractice);

  var SAMPLE_MS = 1000;   // sample presentation (before choices in delayed mode)
  var RETN_MS   = 1000;   // retention interval (delayed mode only)
  var FB_MS     = 600;

  _MTS = {
    active:true, isPractice:isPractice, mode:mode, nComp:nComp,
    trial:0, nTrials:nTrials, log:[], _timers:[],
    waiting:false, responded:false, stimOn:0, current:null,
    SAMPLE_MS:SAMPLE_MS, RETN_MS:RETN_MS, FB_MS:FB_MS
  };
  function T(fn, ms){ var t = setTimeout(fn, ms); _MTS._timers.push(t); return t; }
  _MTS.T = T;
  _MTS.clearT = function(){ _MTS._timers.forEach(clearTimeout); _MTS._timers = []; };

  hideAll();
  $('mtsScreen').style.display = 'flex';
  $('mtsScreen').classList.add('active');
  $('mtsPracticeBanner').style.display = isPractice ? 'block' : 'none';
  $('mtsProgressBar').style.width = '0%';
  $('mtsSamplePhase').style.display    = 'none';
  $('mtsRetentionPhase').style.display = 'none';
  $('mtsChoicePhase').style.display    = 'none';
  $('mtsResultsPhase').style.display   = 'none';
  $('mtsFeedback').textContent = '';
  $('mts-mode-lbl').textContent = (mode === 'delayed' ? 'DMTS' : 'SIMULTANEOUS') + ' · ' + nComp + ' comp';
  $('si-task').textContent = 'MTS' + (isPractice ? ' (PRAC)' : '');
  $('exportBtn').disabled = true;

  Trigger.send(10, 'MTS_session_start', {
    task:'MTS', practice:isPractice, mode:mode, n_comparisons:nComp, n_trials:nTrials,
    source:(typeof CustomImages !== 'undefined' && CustomImages.hasPool('spr')) ? 'custom' : 'procedural'
  });

  _MTS.T(_mtsNextTrial, 700);
}

function _mtsNextTrial(){
  if (!_MTS || !_MTS.active) return;
  if (_MTS.trial >= _MTS.nTrials){ _mtsFinish(); return; }
  _MTS.trial++;
  // Draw nComp distinct stimuli; one is the sample, that same one is the
  // correct comparison. The rest are distractors.
  var stims = _sprDrawStims(_MTS.nComp);   // reuse SPR's stimulus drawer
  if (!stims || stims.length < _MTS.nComp){ _mtsFinish(); return; }
  var sampleIdx = Math.floor(Math.random() * _MTS.nComp);
  var sample = stims[sampleIdx];
  // Comparisons = all nComp stims (sample included), shuffled for display
  var comps = stims.slice();
  for (var i = comps.length - 1; i > 0; i--){
    var j = Math.floor(Math.random() * (i + 1));
    var tmp = comps[i]; comps[i] = comps[j]; comps[j] = tmp;
  }
  var correctPos = comps.findIndex(function(s){ return s.key === sample.key; });
  _MTS.current = { sample:sample, comps:comps, correctPos:correctPos };

  $('mts-trial').textContent = 'Trial ' + _MTS.trial + '/' + _MTS.nTrials;
  $('mtsProgressBar').style.width = ((_MTS.trial - 1) / _MTS.nTrials * 100).toFixed(1) + '%';

  // Show sample
  $('mtsSamplePhase').style.display    = 'flex';
  $('mtsRetentionPhase').style.display = 'none';
  $('mtsChoicePhase').style.display    = 'none';
  $('mts-phase').textContent = 'SAMPLE';
  _sprRenderStim($('mtsSampleStim'), sample);
  triggerFlash();
  Trigger.send(30, 'MTS_sample', { task:'MTS', trial:_MTS.trial, sample:sample.key });

  if (_MTS.mode === 'delayed'){
    // Sample shown, then hidden, retention, then choices
    _MTS.T(function(){
      $('mtsSamplePhase').style.display    = 'none';
      $('mtsRetentionPhase').style.display = 'flex';
      $('mts-phase').textContent = 'RETENTION';
      _MTS.T(_mtsShowChoices, _MTS.RETN_MS);
    }, _MTS.SAMPLE_MS);
  } else {
    // Simultaneous — short sample preview then choices with sample persisting
    _MTS.T(_mtsShowChoices, _MTS.SAMPLE_MS);
  }
}

function _mtsShowChoices(){
  if (!_MTS || !_MTS.active) return;
  var cur = _MTS.current;
  $('mtsSamplePhase').style.display    = 'none';
  $('mtsRetentionPhase').style.display = 'none';
  $('mtsChoicePhase').style.display    = 'flex';
  $('mts-phase').textContent = 'CHOICE';
  $('mtsFeedback').textContent = '';

  // In simultaneous mode the sample stays visible above the comparisons.
  var persist = $('mtsSampleStimPersist');
  if (_MTS.mode === 'simultaneous'){
    persist.style.display = 'flex';
    _sprRenderStim(persist, cur.sample);
  } else {
    persist.style.display = 'none';
  }

  var row = $('mtsCompRow');
  row.innerHTML = '';
  cur.comps.forEach(function(stim, i){
    var cell = document.createElement('div');
    cell.className = 'mts-comp';
    cell.setAttribute('data-pos', i);
    var num = document.createElement('div');
    num.className = 'mts-comp-num';
    num.textContent = (i + 1);
    cell.appendChild(num);
    var inner = document.createElement('div');
    inner.style.cssText = 'width:100%;height:100%;display:flex;align-items:center;justify-content:center;';
    if (stim.kind === 'image') inner.innerHTML = '<img src="' + stim.dataUrl + '" alt="">';
    else inner.innerHTML = stim.markup;
    cell.appendChild(inner);
    cell.onclick = function(){ mtsRespond(i); };
    row.appendChild(cell);
  });

  _MTS.waiting = true;
  _MTS.responded = false;
  _MTS.stimOn = performance.now();
  triggerFlash();
  Trigger.send(40, 'MTS_choices', { task:'MTS', trial:_MTS.trial, n:cur.comps.length, correct_pos:cur.correctPos+1 });
}

window.mtsRespond = function(pos){
  if (!_MTS || !_MTS.active || !_MTS.waiting || _MTS.responded) return;
  if (pos < 0 || pos >= _MTS.current.comps.length) return;
  _MTS.responded = true; _MTS.waiting = false;
  var rt = +(performance.now() - _MTS.stimOn).toFixed(1);
  var cur = _MTS.current;
  var correct = (pos === cur.correctPos);
  Trigger.send(correct ? 50 : 51, correct ? 'MTS_correct' : 'MTS_error', {
    task:'MTS', trial:_MTS.trial, chosen_pos:pos+1, correct_pos:cur.correctPos+1, correct:correct, rt:rt
  });
  _MTS.log.push({
    trial:_MTS.trial, mode:_MTS.mode, n_comp:_MTS.nComp,
    chosen_pos:pos+1, correct_pos:cur.correctPos+1, correct:correct, rt:rt,
    sample_name:(cur.sample && cur.sample.key) || '',
    sv_norm:(cur.sample && cur.sample.norm) ? 1 : 0
  });
  // Visual feedback on the cells
  var cells = document.querySelectorAll('#mtsCompRow .mts-comp');
  cells.forEach(function(cell, i){
    if (i === cur.correctPos) cell.classList.add('correct');
    if (i === pos && !correct) cell.classList.add('wrong');
  });
  var fb = $('mtsFeedback');
  fb.textContent = correct ? rt + 'ms ✓' : rt + 'ms ✗';
  fb.className = 'feedback ' + (correct ? 'ok' : 'err');
  $('mtsProgressBar').style.width = (_MTS.trial / _MTS.nTrials * 100).toFixed(1) + '%';
  _MTS.T(_mtsNextTrial, _MTS.FB_MS + 200);
};

function _mtsFinish(){
  if (!_MTS) return;
  _MTS.clearT(); _MTS.active = false;
  $('mtsSamplePhase').style.display    = 'none';
  $('mtsRetentionPhase').style.display = 'none';
  $('mtsChoicePhase').style.display    = 'none';
  Trigger.send(11, 'MTS_session_end', { task:'MTS' });

  if (_MTS.isPractice){
    var pacc = _MTS.log.length ? (_MTS.log.filter(function(r){return r.correct;}).length / _MTS.log.length * 100).toFixed(0) : '—';
    $('pcStats').innerHTML = 'TRIALS <span>' + _MTS.log.length + '</span> · ACC <span>' + pacc + '%</span>';
    hideAll(); $('practiceComplete').style.display = 'flex';
    return;
  }

  window._mts_log = _MTS.log;
  $('exportBtn').disabled = false;

  var n = _MTS.log.length;
  var corr = _MTS.log.filter(function(r){return r.correct;}).length;
  var acc = n ? corr / n : 0;
  var chance = 1 / _MTS.nComp;
  var rts = _MTS.log.filter(function(r){return r.correct;}).map(function(r){return r.rt;});
  var meanRT = rts.length ? (rts.reduce(function(a,b){return a+b;},0) / rts.length) : 0;

  $('mtsMetrics').innerHTML =
    '<div class="vrt-metric"><div class="vm-val">' + (acc*100).toFixed(0) + '%</div><div class="vm-lbl">Accuracy</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + (chance*100).toFixed(0) + '%</div><div class="vm-lbl">Chance</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + Math.round(meanRT) + '</div><div class="vm-lbl">Mean RT (ms)</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + _MTS.mode.slice(0,3).toUpperCase() + '</div><div class="vm-lbl">Mode</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + n + '</div><div class="vm-lbl">Trials</div></div>';

  $('mtsResultsGrid').innerHTML = _MTS.log.map(function(r){
    return '<div class="vrt-result-cell ' + (r.correct ? 'ok' : 'err') + '">' +
           '<div class="vrc-trial">T' + r.trial + '</div>' +
           '<div class="vrc-mid">#' + r.chosen_pos + (r.correct ? '' : '→' + r.correct_pos) + '</div>' +
           '<div class="vrc-rt">' + r.rt + 'ms</div>' +
           '</div>';
  }).join('');

  $('mtsResultsPhase').style.display = 'flex';
  updateSidebar();
}

window.mtsExportCSV = function(){
  var log = window._mts_log; if (!log || !log.length) return;
  var rows = ['trial,mode,n_comparisons,chosen_pos,correct_pos,correct,rt_ms,sample_name,sv_norm_matched'];
  log.forEach(function(r){
    var nm = (r.sample_name || '').replace(/,/g, ' ');
    rows.push([r.trial, r.mode, r.n_comp, r.chosen_pos, r.correct_pos, r.correct?1:0, r.rt, nm, r.sv_norm?1:0].join(','));
  });
  var blob = new Blob([rows.join('\n')], {type:'text/csv'});
  var a = document.createElement('a');
  a.href = URL.createObjectURL(blob);
  a.download = 'mts_' + Date.now() + '.csv';
  a.click();
};

// Number-key response (1–4) for MTS
document.addEventListener('keydown', function(e){
  if (!_MTS || !_MTS.active || !_MTS.waiting) return;
  var k = e.key;
  if (k >= '1' && k <= '9'){
    var pos = parseInt(k, 10) - 1;
    if (pos < _MTS.current.comps.length){ e.preventDefault(); mtsRespond(pos); }
  }
});
</script>
</body>
</html>
<!-- rewpScreen -->
<div id="rewpScreen" class="task-screen" style="display:none;">
  <div id="rewpPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">REWARD POSITIVITY / FRN</span>
    <span id="rewp-trial" style="font-size:0.82rem;color:var(--dim);">—</span>
    <span id="rewp-phase" style="font-size:0.75rem;color:var(--dim);letter-spacing:0.15em;">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="rewpProgressBar" style="width:0%"></div></div>
  <div id="rewpStimPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;">
    <div id="rewpFixation" style="font-size:2.5rem;color:var(--mid);">+</div>
    <div id="rewpChoice" style="display:none;flex-direction:column;align-items:center;gap:12px;">
      <div style="font-size:0.82rem;color:var(--dim);letter-spacing:0.12em;">Choose a card</div>
      <div style="display:flex;gap:20px;">
        <div id="rewpCard1" onclick="rewpChoose(0)" style="width:80px;height:110px;border:2px solid rgba(212,180,86,0.4);border-radius:6px;background:#0a1620;display:flex;align-items:center;justify-content:center;font-size:2rem;cursor:pointer;transition:all 0.15s;">🂠</div>
        <div id="rewpCard2" onclick="rewpChoose(1)" style="width:80px;height:110px;border:2px solid rgba(212,180,86,0.4);border-radius:6px;background:#0a1620;display:flex;align-items:center;justify-content:center;font-size:2rem;cursor:pointer;transition:all 0.15s;">🂠</div>
      </div>
    </div>
    <div id="rewpFeedback" style="font-size:3rem;min-height:4rem;display:flex;align-items:center;justify-content:center;"></div>
    <div class="feedback" id="rewpFeedbackText"></div>
  </div>
  <div id="rewpResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">RewP RESULTS</div>
      <div class="vrt-metrics" id="rewpMetrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="rewpExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>
<!-- ═══════════════════════════════════════════════════════════
     SENSORY TESTING SCREENS — Snellen / Ishihara / Seashore / Audiom
     ═══════════════════════════════════════════════════════════ -->

<!-- snellenScreen -->
<div id="snellenScreen" class="task-screen" style="display:none;">
  <div id="snellenPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">VISUAL ACUITY · SNELLEN</span>
    <span id="snellen-line" style="font-size:0.82rem;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="snellenProgressBar" style="width:0%"></div></div>

  <!-- ═══ CALIBRATION PHASE — shown first, off the test screen ═══ -->
  <div id="snellenCalibPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;max-width:520px;">
    <div style="font-family:'EB Garamond',serif;font-style:italic;font-size:1.15rem;color:var(--gold-lt);text-align:center;">One-time screen calibration</div>
    <div style="font-size:0.8rem;color:var(--dim);text-align:center;line-height:1.6;max-width:420px;">
      Before the acuity test, calibrate the display so letter sizes are physically accurate. This setup runs once — the test screen that follows shows only the chart.
    </div>
    <div style="display:flex;gap:24px;align-items:flex-start;background:#0a1620;border:1px solid #1a2f44;padding:18px 22px;border-radius:4px;">
      <div>
        <div style="font-size:0.7rem;color:var(--dim);letter-spacing:0.14em;text-transform:uppercase;margin-bottom:6px;">Card calibration</div>
        <div style="font-size:0.72rem;color:var(--dim);max-width:240px;line-height:1.5;margin-bottom:8px;">Drag the right edge of the rectangle to match a real credit card (85.6&nbsp;mm wide).</div>
        <div id="snellenCardCalib" style="display:flex;align-items:center;gap:10px;">
          <div id="snellenCardRect" style="width:240px;height:152px;border:2px dashed rgba(212,180,86,0.6);background:rgba(212,180,86,0.04);position:relative;">
            <div style="position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:0.62rem;color:var(--gold-dim);letter-spacing:0.2em;">DRAG ▶</div>
            <div id="snellenCardHandle" style="position:absolute;right:-8px;top:0;width:16px;height:100%;cursor:ew-resize;background:linear-gradient(90deg,transparent,var(--gold));opacity:0.6;"></div>
          </div>
          <div>
            <div style="font-size:0.66rem;color:var(--dim);">PPI</div>
            <div id="snellenPPI" style="font-size:1.4rem;color:var(--gold-lt);font-family:'EB Garamond',serif;font-style:italic;">96</div>
          </div>
        </div>
      </div>
      <div>
        <div style="font-size:0.7rem;color:var(--dim);letter-spacing:0.14em;text-transform:uppercase;margin-bottom:6px;">Distance</div>
        <input type="number" id="snellenDist" value="24" min="6" max="200" step="1" style="width:90px;background:#060d14;border:1px solid #2a4060;color:var(--text);font-family:'Source Code Pro',monospace;padding:6px 8px;font-size:0.9rem;">
        <div style="font-size:0.66rem;color:var(--dim);margin-top:4px;">inches (arm ≈ 24)</div>
      </div>
    </div>
    <button class="intro-btn primary" onclick="snellenBeginChart()">START TEST ▶</button>
  </div>

  <div id="snellenStimPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;">

    <!-- Snellen letter card -->
    <div style="background:#f4eedd;color:#0a0a0a;padding:30px 24px;text-align:center;min-width:340px;border-radius:2px;font-family:'Courier New',monospace;font-weight:700;user-select:none;">
      <div id="snellenLineLabel" style="font-family:'Source Code Pro',monospace;font-size:0.7rem;color:#5a5a5a;letter-spacing:0.18em;margin-bottom:10px;">LINE 1 · 20/200</div>
      <div id="snellenLetters" style="letter-spacing:0.2em;line-height:1;font-size:80px;">E</div>
      <input id="snellenInput" type="text" maxlength="8" placeholder="type the letters" autocomplete="off" style="margin-top:14px;text-align:center;text-transform:uppercase;letter-spacing:0.2em;font-family:'Source Code Pro',monospace;font-size:1rem;background:#fff;color:#000;border:1px solid #888;padding:6px 10px;width:240px;">
    </div>

    <!-- Navigation buttons -->
    <div style="display:flex;gap:10px;">
      <button class="intro-btn" onclick="snellenRecalibrate()" title="Re-open calibration">⚙ RECALIBRATE</button>
      <button class="intro-btn" onclick="snellenPrev()">◀ PREV</button>
      <button class="intro-btn primary" onclick="snellenNext()">NEXT ▶</button>
      <button class="intro-btn" onclick="snellenRecord()">✓ RECORD &amp; FINISH</button>
    </div>
  </div>

  <div id="snellenResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">SNELLEN RESULTS</div>
      <div class="vrt-metrics" id="snellenMetrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="sensoryGo('prev','SNELLEN')">◀ PREV TASK</button>
        <button class="intro-btn" onclick="sensoryGo('next','SNELLEN')">NEXT TASK ▶</button>
        <button class="intro-btn" onclick="snellenExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<!-- ishiharaScreen -->
<div id="ishiharaScreen" class="task-screen" style="display:none;">
  <div id="ishiharaPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">COLOR VISION · ISHIHARA-STYLE</span>
    <span id="ishihara-trial" style="font-size:0.82rem;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="ishiharaProgressBar" style="width:0%"></div></div>

  <div id="ishiharaStimPhase" style="display:none;flex-direction:column;align-items:center;gap:16px;">
    <canvas id="ishiharaCanvas" width="360" height="360" style="background:#060d14;border-radius:50%;"></canvas>
    <div style="font-family:'EB Garamond',serif;font-style:italic;font-size:1.15rem;color:var(--gold-lt);">What numeral do you see?</div>
    <input id="ishiharaInput" type="text" maxlength="3" placeholder="?" autocomplete="off" style="text-align:center;font-family:'Source Code Pro',monospace;font-size:1.3rem;background:#060d14;color:var(--text);border:1px solid #2a4060;padding:8px 12px;width:110px;letter-spacing:0.1em;">
    <div style="display:flex;gap:10px;">
      <button class="intro-btn primary" onclick="ishiharaSubmit()">SUBMIT ↵</button>
      <button class="intro-btn" onclick="ishiharaSkip()">CAN'T SEE</button>
    </div>
  </div>

  <div id="ishiharaResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">COLOR VISION RESULTS</div>
      <div class="vrt-metrics" id="ishiharaMetrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="sensoryGo('prev','ISHIHARA')">◀ PREV TASK</button>
        <button class="intro-btn" onclick="sensoryGo('next','ISHIHARA')">NEXT TASK ▶</button>
        <button class="intro-btn" onclick="ishiharaExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<!-- seashoreScreen -->
<div id="seashoreScreen" class="task-screen" style="display:none;">
  <div id="seashorePracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">SEASHORE RHYTHM</span>
    <span id="seashore-trial" style="font-size:0.82rem;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="seashoreProgressBar" style="width:0%"></div></div>

  <div id="seashoreStimPhase" style="display:none;flex-direction:column;align-items:center;gap:18px;">
    <div id="seashorePrompt" style="font-family:'EB Garamond',serif;font-style:italic;font-size:1.35rem;color:var(--gold-lt);min-height:2rem;">Ready when you are.</div>
    <div id="seashorePulses" style="min-height:1.6rem;display:flex;gap:6px;align-items:center;justify-content:center;"></div>
    <div id="seashoreJudge" style="display:none;gap:14px;">
      <button class="intro-btn primary" onclick="seashoreAnswer('same')">SAME (S)</button>
      <button class="intro-btn primary" onclick="seashoreAnswer('different')">DIFFERENT (D)</button>
    </div>
    <div id="seashoreFeedback" style="min-height:1.5em;font-size:0.92rem;color:var(--mid);"></div>
    <button id="seashoreStartBtn" class="intro-btn primary" onclick="seashoreNextTrial()">▶ START TRIAL</button>
  </div>

  <div id="seashoreResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">SEASHORE RHYTHM RESULTS</div>
      <div class="vrt-metrics" id="seashoreMetrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="sensoryGo('prev','SEASHORE')">◀ PREV TASK</button>
        <button class="intro-btn" onclick="sensoryGo('next','SEASHORE')">NEXT TASK ▶</button>
        <button class="intro-btn" onclick="seashoreExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<!-- audiomScreen -->
<div id="audiomScreen" class="task-screen" style="display:none;">
  <div id="audiomPracticeBanner" class="practice-banner" style="display:none">PRACTICE MODE</div>
  <div style="display:flex;gap:24px;align-items:center;">
    <span style="color:var(--gold);font-size:0.9rem;letter-spacing:0.2em;font-family:'EB Garamond',serif;">AUDITORY THRESHOLD</span>
    <span id="audiom-status" style="font-size:0.82rem;color:var(--dim);">—</span>
  </div>
  <div class="progress-bar-wrap" style="width:380px"><div class="progress-bar" id="audiomProgressBar" style="width:0%"></div></div>

  <div id="audiomStimPhase" style="display:none;flex-direction:column;align-items:center;gap:14px;">
    <!-- Setup -->
    <div style="display:flex;gap:24px;align-items:flex-end;background:#0a1620;border:1px solid #1a2f44;padding:14px 18px;border-radius:4px;">
      <div>
        <div style="font-size:0.7rem;color:var(--dim);letter-spacing:0.14em;text-transform:uppercase;margin-bottom:4px;">Ear</div>
        <select id="audiomEar" style="background:#060d14;border:1px solid #2a4060;color:var(--text);font-family:'Source Code Pro',monospace;padding:5px 8px;font-size:0.9rem;">
          <option value="right">Right</option>
          <option value="left">Left</option>
        </select>
      </div>
      <div>
        <div style="font-size:0.7rem;color:var(--dim);letter-spacing:0.14em;text-transform:uppercase;margin-bottom:4px;">Ref dBFS</div>
        <input type="number" id="audiomRef" value="-50" min="-80" max="0" step="5" style="width:80px;background:#060d14;border:1px solid #2a4060;color:var(--text);font-family:'Source Code Pro',monospace;padding:5px 8px;font-size:0.9rem;">
      </div>
    </div>

    <div style="display:flex;gap:24px;align-items:baseline;padding:10px 0;">
      <span id="audiomFreq" style="font-family:'EB Garamond',serif;font-style:italic;font-size:2rem;color:var(--gold);">— Hz</span>
      <span id="audiomLevel" style="font-family:'Source Code Pro',monospace;font-size:0.95rem;color:var(--mid);letter-spacing:0.1em;">— dB</span>
    </div>

    <div style="display:flex;gap:10px;">
      <button id="audiomPlayBtn" class="intro-btn primary" onclick="audiomPlay()">▶ PLAY TONE (Space)</button>
      <button id="audiomHeardBtn" class="intro-btn" onclick="audiomRespond(true)" disabled>HEARD (Y)</button>
      <button id="audiomNotHeardBtn" class="intro-btn" onclick="audiomRespond(false)" disabled>DIDN'T HEAR (N)</button>
    </div>

    <canvas id="audiogramCanvas" width="640" height="280" style="background:#060d14;border:1px solid #1a2f44;margin-top:12px;"></canvas>
  </div>

  <div id="audiomResultsPhase" style="display:none;">
    <div class="vrt-results-wrap">
      <div class="vrt-results-title">AUDIOGRAM RESULTS</div>
      <div class="vrt-metrics" id="audiomMetrics"></div>
      <div style="display:flex;gap:12px;margin-top:10px;">
        <button class="intro-btn primary" onclick="resetAll()">↩ HOME</button>
        <button class="intro-btn" onclick="sensoryGo('prev','AUDIOM')">◀ PREV TASK</button>
        <button class="intro-btn" onclick="sensoryGo('next','AUDIOM')">NEXT TASK ▶</button>
        <button class="intro-btn" onclick="audiomExportCSV()">⬇ EXPORT CSV</button>
      </div>
    </div>
  </div>
</div>

<!-- ═══════════════════════════════════════════════════════════
     SENSORY TESTING JAVASCRIPT — task logic
     ═══════════════════════════════════════════════════════════ -->
<script>
(function(){
'use strict';

// ─────────────────────────────────────────────────────────────
// SENSORY BATTERY NAVIGATION
// Jumps directly from one task's results screen to the next/previous
// task's stim phase (skips the intro screen entirely).
// ─────────────────────────────────────────────────────────────
var SENSORY_ORDER = ['SNELLEN', 'ISHIHARA', 'SEASHORE', 'AUDIOM'];
var SENSORY_START_FNS = {
  SNELLEN:  function(){ window.startSnellen(false); },
  ISHIHARA: function(){ window.startIshihara(false); },
  SEASHORE: function(){ window.startSeashore(false); },
  AUDIOM:   function(){ window.startAudiom(false); },
};
window.sensoryGo = function(direction, fromTask){
  var idx = SENSORY_ORDER.indexOf(fromTask);
  if (idx < 0) return;
  var nextIdx;
  if (direction === 'next')      nextIdx = (idx + 1) % SENSORY_ORDER.length;
  else if (direction === 'prev') nextIdx = (idx - 1 + SENSORY_ORDER.length) % SENSORY_ORDER.length;
  else return;
  var nextKey = SENSORY_ORDER[nextIdx];
  var fn = SENSORY_START_FNS[nextKey];
  if (typeof fn === 'function') fn();
};

// ─────────────────────────────────────────────────────────────
// SNELLEN
// ─────────────────────────────────────────────────────────────
var SNELLEN_LINES = [
  { denom: 200, letters: 'E',        arcmin: 50 },
  { denom: 100, letters: 'FP',       arcmin: 25 },
  { denom: 70,  letters: 'TOZ',      arcmin: 17.5 },
  { denom: 50,  letters: 'LPED',     arcmin: 12.5 },
  { denom: 40,  letters: 'PECFD',    arcmin: 10 },
  { denom: 30,  letters: 'EDFCZP',   arcmin: 7.5 },
  { denom: 25,  letters: 'FELOPZD',  arcmin: 6.25 },
  { denom: 20,  letters: 'DEFPOTEC', arcmin: 5 },
  { denom: 15,  letters: 'LEFODPCT', arcmin: 3.75 },
  { denom: 13,  letters: 'FDPLTCEO', arcmin: 3.25 },
];
var SNELLEN = { idx: 0, ppi: 96, lastCorrectIdx: -1, log: [], isPractice: false };

function snellenLetterHeightPx(arcmin, distIn) {
  var rad = arcmin * Math.PI / (180 * 60);
  return distIn * Math.tan(rad) * SNELLEN.ppi;
}
function snellenRender() {
  var line = SNELLEN_LINES[SNELLEN.idx];
  var dist = parseFloat(document.getElementById('snellenDist').value) || 24;
  var px = snellenLetterHeightPx(line.arcmin, dist);
  document.getElementById('snellenLineLabel').textContent = tr('LINE ') + (SNELLEN.idx + 1) + ' · 20/' + line.denom;
  var L = document.getElementById('snellenLetters');
  L.textContent = line.letters;
  L.style.fontSize = Math.max(8, px) + 'px';
  document.getElementById('snellen-line').textContent = (SNELLEN.idx + 1) + '/' + SNELLEN_LINES.length;
  document.getElementById('snellenProgressBar').style.width =
    ((SNELLEN.idx + 1) / SNELLEN_LINES.length * 100).toFixed(0) + '%';
  document.getElementById('snellenInput').value = '';
  setTimeout(function(){ document.getElementById('snellenInput').focus(); }, 50);
}
window.snellenNext = function(){
  // Check current input
  var line = SNELLEN_LINES[SNELLEN.idx];
  var guess = document.getElementById('snellenInput').value.trim().toUpperCase();
  var correct = (guess === line.letters);
  SNELLEN.log.push({ line: SNELLEN.idx + 1, denom: line.denom, target: line.letters, response: guess, correct: correct });
  if (correct) SNELLEN.lastCorrectIdx = SNELLEN.idx;
  if (SNELLEN.idx < SNELLEN_LINES.length - 1) {
    SNELLEN.idx++;
    snellenRender();
  } else {
    snellenRecord();
  }
};
window.snellenPrev = function(){
  if (SNELLEN.idx > 0) { SNELLEN.idx--; snellenRender(); }
};
window.snellenRecord = function(){
  // Check current input before finishing
  var line = SNELLEN_LINES[SNELLEN.idx];
  var guess = document.getElementById('snellenInput').value.trim().toUpperCase();
  if (guess === line.letters) SNELLEN.lastCorrectIdx = SNELLEN.idx;
  var dist = parseFloat(document.getElementById('snellenDist').value) || 24;
  var acuity = SNELLEN.lastCorrectIdx >= 0
    ? '20/' + SNELLEN_LINES[SNELLEN.lastCorrectIdx].denom
    : 'no line read';
  document.getElementById('snellenStimPhase').style.display = 'none';
  document.getElementById('snellenResultsPhase').style.display = 'block';
  document.getElementById('snellenMetrics').innerHTML =
    '<div class="vrt-metric"><div class="vm-val">' + acuity + '</div><div class="vm-lbl">Acuity</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + dist + '"</div><div class="vm-lbl">Distance</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + SNELLEN.ppi.toFixed(0) + '</div><div class="vm-lbl">PPI calibrated</div></div>';
  document.getElementById('snellenProgressBar').style.width = '100%';
};
window.snellenExportCSV = function(){
  if (!SNELLEN.log.length) return;
  var rows = ['line,denom,target,response,correct'];
  SNELLEN.log.forEach(function(r){
    rows.push([r.line, r.denom, r.target, r.response, r.correct].join(','));
  });
  var blob = new Blob([rows.join('\n')], { type: 'text/csv' });
  var a = document.createElement('a');
  a.href = URL.createObjectURL(blob);
  a.download = 'snellen_' + Date.now() + '.csv';
  a.click();
};
function snellenInitCardCalib(){
  var rect = document.getElementById('snellenCardRect');
  var handle = document.getElementById('snellenCardHandle');
  var readout = document.getElementById('snellenPPI');
  if (!rect || !handle) return;
  var dragging = false;
  function commit(w){
    var width = Math.max(80, Math.min(600, w));
    rect.style.width = width + 'px';
    SNELLEN.ppi = width / 3.37;          // ISO 7810 ID-1 = 85.6mm = 3.37 in
    readout.textContent = SNELLEN.ppi.toFixed(0);
    snellenRender();
  }
  handle.addEventListener('mousedown', function(e){ dragging = true; e.preventDefault(); });
  document.addEventListener('mousemove', function(e){
    if (!dragging) return;
    commit(e.clientX - rect.getBoundingClientRect().left);
  });
  document.addEventListener('mouseup', function(){ dragging = false; });
  handle.addEventListener('touchstart', function(e){ dragging = true; e.preventDefault(); }, { passive: false });
  document.addEventListener('touchmove', function(e){
    if (!dragging) return;
    var t = e.touches[0]; if (!t) return;
    commit(t.clientX - rect.getBoundingClientRect().left);
  }, { passive: false });
  document.addEventListener('touchend', function(){ dragging = false; });
}
window.startSnellen = function(isPractice){
  SNELLEN.idx = 0; SNELLEN.lastCorrectIdx = -1; SNELLEN.log = []; SNELLEN.isPractice = isPractice;
  hideAll();
  document.getElementById('snellenScreen').style.display = 'flex';
  document.getElementById('snellenPracticeBanner').style.display = isPractice ? 'block' : 'none';
  document.getElementById('snellenResultsPhase').style.display = 'none';
  if (!SNELLEN._calibInit) { SNELLEN._calibInit = true; snellenInitCardCalib(); }
  if (!SNELLEN._distBound) {
    SNELLEN._distBound = true;
    document.getElementById('snellenDist').addEventListener('input', snellenRender);
    document.getElementById('snellenInput').addEventListener('keydown', function(e){
      if (e.key === 'Enter') snellenNext();
    });
  }
  // One-time calibration per session: restore a saved calibration if present,
  // and skip straight to the clean chart. Otherwise show calibration first.
  snellenRestoreCalibration();
  if (SNELLEN._calibrated) {
    document.getElementById('snellenCalibPhase').style.display = 'none';
    document.getElementById('snellenStimPhase').style.display = 'flex';
    snellenRender();
    var si = document.getElementById('snellenInput'); if (si) si.focus();
  } else {
    document.getElementById('snellenCalibPhase').style.display = 'flex';
    document.getElementById('snellenStimPhase').style.display = 'none';
    snellenRender();
  }
};
// Restore a calibration saved earlier this session (PPI + distance).
function snellenRestoreCalibration(){
  if (SNELLEN._calibrated) { snellenApplyCalibUI(); return; }
  try{
    var raw = localStorage.getItem('cognos_snellen_calib_v1');
    if (!raw) return;
    var c = JSON.parse(raw);
    if (c && c.ppi > 0) {
      SNELLEN.ppi = c.ppi;
      SNELLEN._calibrated = true;
      if (c.dist) SNELLEN._dist = c.dist;
      snellenApplyCalibUI();
    }
  }catch(e){}
}
// Reflect the stored calibration back into the calibration controls (so the
// rectangle + distance match if the user chooses to recalibrate).
function snellenApplyCalibUI(){
  try{
    var rect = document.getElementById('snellenCardRect');
    var readout = document.getElementById('snellenPPI');
    if (rect && SNELLEN.ppi) rect.style.width = (SNELLEN.ppi * 3.37) + 'px';
    if (readout && SNELLEN.ppi) readout.textContent = SNELLEN.ppi.toFixed(0);
    var d = document.getElementById('snellenDist');
    if (d && SNELLEN._dist) d.value = SNELLEN._dist;
  }catch(e){}
}
// Calibration done → persist it and reveal the clean letter chart.
window.snellenBeginChart = function(){
  var d = document.getElementById('snellenDist');
  SNELLEN._dist = d ? (parseFloat(d.value) || 24) : 24;
  SNELLEN._calibrated = true;
  try{ localStorage.setItem('cognos_snellen_calib_v1',
        JSON.stringify({ ppi: SNELLEN.ppi, dist: SNELLEN._dist })); }catch(e){}
  document.getElementById('snellenCalibPhase').style.display = 'none';
  document.getElementById('snellenStimPhase').style.display = 'flex';
  snellenRender();
  var inp = document.getElementById('snellenInput'); if (inp) inp.focus();
};
// Re-open calibration from the chart without losing progress.
window.snellenRecalibrate = function(){
  document.getElementById('snellenStimPhase').style.display = 'none';
  document.getElementById('snellenCalibPhase').style.display = 'flex';
};

// ─────────────────────────────────────────────────────────────
// ISHIHARA-STYLE
// ─────────────────────────────────────────────────────────────
var ISH_PLATES = [
  { type: 'rg', answer: '12' },
  { type: 'rg', answer: '8' },
  { type: 'rg', answer: '5' },
  { type: 'rg', answer: '74' },
  { type: 'by', answer: '3' },
  { type: 'by', answer: '6' },
  { type: 'rg', answer: '29' },
  { type: 'by', answer: '9' },
];
var ISH = { idx: 0, log: [], isPractice: false };

function ishiharaPalette(type){
  if (type === 'rg') {
    return {
      figure: ['#d6724e','#c8593a','#e08a5d','#b6483a','#d27855','#cc6648'],
      bg:     ['#7a8a3a','#92964a','#8a9c4e','#a09858','#9aa066','#88904e','#a0a050'],
    };
  }
  return {
    figure: ['#3a7ac8','#4f6da8','#3d92b8','#5070a0','#3878a8'],
    bg:     ['#c8a850','#d8b260','#b89848','#c0a040','#d0b860','#b8a458'],
  };
}
function ishiharaPack(D, rMin, rMax){
  var cx = D/2, cy = D/2, R = D/2 - 4;
  var circles = [];
  var attempts = 0;
  while (attempts < 10000 && circles.length < 1500) {
    attempts++;
    var r = rMin + Math.random()*(rMax-rMin);
    var a = Math.random()*Math.PI*2;
    var rr = Math.sqrt(Math.random())*(R - r - 1);
    var x = cx + rr*Math.cos(a), y = cy + rr*Math.sin(a);
    var ok = true;
    for (var i = circles.length-1; i >= 0 && ok; i--) {
      var c = circles[i];
      var dx = c.x - x, dy = c.y - y;
      var dm = c.r + r + 1.2;
      if (dx*dx + dy*dy < dm*dm) ok = false;
    }
    if (ok) circles.push({ x: x, y: y, r: r });
  }
  return circles;
}
function ishiharaRender(){
  var plate = ISH_PLATES[ISH.idx];
  var c = document.getElementById('ishiharaCanvas');
  var ctx = c.getContext('2d');
  var W = c.width, H = c.height;
  ctx.fillStyle = '#060d14'; ctx.fillRect(0,0,W,H);
  // Build digit mask
  var mask = document.createElement('canvas');
  mask.width = W; mask.height = H;
  var mc = mask.getContext('2d');
  mc.fillStyle = '#000'; mc.fillRect(0,0,W,H);
  mc.fillStyle = '#fff';
  mc.font = 'bold ' + Math.round(H*0.55) + 'px "Courier New", monospace';
  mc.textAlign = 'center'; mc.textBaseline = 'middle';
  mc.fillText(plate.answer, W/2, H/2 + 4);
  var md = mc.getImageData(0,0,W,H).data;
  function onFig(x, y){
    var ix = Math.round(x), iy = Math.round(y);
    if (ix < 0 || iy < 0 || ix >= W || iy >= H) return false;
    return md[(iy*W + ix)*4] > 128;
  }
  var circles = ishiharaPack(W, 3.5, 8);
  var pal = ishiharaPalette(plate.type);
  ctx.save();
  ctx.beginPath();
  ctx.arc(W/2, H/2, W/2 - 4, 0, Math.PI*2);
  ctx.clip();
  ctx.fillStyle = '#13202e'; ctx.fillRect(0,0,W,H);
  for (var i = 0; i < circles.length; i++) {
    var cc = circles[i];
    var palArr = onFig(cc.x, cc.y) ? pal.figure : pal.bg;
    ctx.fillStyle = palArr[Math.floor(Math.random()*palArr.length)];
    ctx.beginPath();
    ctx.arc(cc.x, cc.y, cc.r, 0, Math.PI*2);
    ctx.fill();
  }
  ctx.restore();
  // Subtle ring
  ctx.strokeStyle = 'rgba(212,180,86,0.3)';
  ctx.lineWidth = 1;
  ctx.beginPath();
  ctx.arc(W/2, H/2, W/2 - 2, 0, Math.PI*2);
  ctx.stroke();

  document.getElementById('ishihara-trial').textContent = 'Plate ' + (ISH.idx + 1) + '/' + ISH_PLATES.length;
  document.getElementById('ishiharaProgressBar').style.width =
    ((ISH.idx + 1) / ISH_PLATES.length * 100).toFixed(0) + '%';
  document.getElementById('ishiharaInput').value = '';
  setTimeout(function(){ document.getElementById('ishiharaInput').focus(); }, 50);
}
function ishiharaAdvance(resp){
  var plate = ISH_PLATES[ISH.idx];
  ISH.log.push({ plate: ISH.idx + 1, type: plate.type, target: plate.answer, response: resp, correct: resp === plate.answer });
  if (ISH.idx < ISH_PLATES.length - 1) {
    ISH.idx++;
    ishiharaRender();
  } else {
    ishiharaFinish();
  }
}
function ishiharaFinish(){
  var total = ISH.log.length;
  var correct = ISH.log.filter(function(r){ return r.correct; }).length;
  var rg = ISH.log.filter(function(r){ return r.type === 'rg'; });
  var by = ISH.log.filter(function(r){ return r.type === 'by'; });
  var rgC = rg.filter(function(r){ return r.correct; }).length;
  var byC = by.filter(function(r){ return r.correct; }).length;
  var interp = 'Normal screening result';
  if (rg.length && rgC/rg.length < 0.5) interp = 'Possible red-green deficit';
  if (by.length && byC/by.length < 0.5) {
    interp = interp.indexOf('Possible') === 0 ? 'Possible R-G + B-Y deficit' : 'Possible blue-yellow deficit';
  }
  document.getElementById('ishiharaStimPhase').style.display = 'none';
  document.getElementById('ishiharaResultsPhase').style.display = 'block';
  document.getElementById('ishiharaMetrics').innerHTML =
    '<div class="vrt-metric"><div class="vm-val">' + correct + '/' + total + '</div><div class="vm-lbl">Correct</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + rgC + '/' + rg.length + '</div><div class="vm-lbl">Red-Green</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + byC + '/' + by.length + '</div><div class="vm-lbl">Blue-Yellow</div></div>' +
    '<div class="vrt-metric" style="grid-column:span 3;"><div class="vm-val" style="font-size:0.95rem;">' + interp + '</div><div class="vm-lbl">Interpretation</div></div>';
  document.getElementById('ishiharaProgressBar').style.width = '100%';
}
window.ishiharaSubmit = function(){
  ishiharaAdvance(document.getElementById('ishiharaInput').value.trim());
};
window.ishiharaSkip = function(){ ishiharaAdvance(''); };
window.ishiharaExportCSV = function(){
  if (!ISH.log.length) return;
  var rows = ['plate,type,target,response,correct'];
  ISH.log.forEach(function(r){
    rows.push([r.plate, r.type, r.target, r.response, r.correct].join(','));
  });
  var blob = new Blob([rows.join('\n')], { type: 'text/csv' });
  var a = document.createElement('a');
  a.href = URL.createObjectURL(blob);
  a.download = 'ishihara_' + Date.now() + '.csv';
  a.click();
};
window.startIshihara = function(isPractice){
  ISH.idx = 0; ISH.log = []; ISH.isPractice = isPractice;
  hideAll();
  document.getElementById('ishiharaScreen').style.display = 'flex';
  document.getElementById('ishiharaPracticeBanner').style.display = isPractice ? 'block' : 'none';
  document.getElementById('ishiharaStimPhase').style.display = 'flex';
  document.getElementById('ishiharaResultsPhase').style.display = 'none';
  document.getElementById('ishiharaInput').onkeydown = function(e){
    if (e.key === 'Enter') ishiharaSubmit();
  };
  ishiharaRender();
};

// ─────────────────────────────────────────────────────────────
// SEASHORE RHYTHM
// ─────────────────────────────────────────────────────────────
var SH = { trials: [], current: null, trialStart: 0, isPractice: false, maxTrials: 10 };
var SH_AUDIO = null;
function ensureAudioCtx(){
  if (!SH_AUDIO) SH_AUDIO = new (window.AudioContext || window.webkitAudioContext)();
  if (SH_AUDIO.state === 'suspended') SH_AUDIO.resume();
  return SH_AUDIO;
}
function seashoreGenRhythm(n){
  var iv = [];
  for (var i = 0; i < n - 1; i++) iv.push(180 + Math.random()*240);
  return iv;
}
function seashorePlayRhythm(intervals){
  var ctx = ensureAudioCtx();
  var t = ctx.currentTime + 0.05;
  function beep(when){
    var o = ctx.createOscillator();
    var g = ctx.createGain();
    o.type = 'sine'; o.frequency.value = 880;
    g.gain.setValueAtTime(0, when);
    g.gain.linearRampToValueAtTime(0.4, when + 0.005);
    g.gain.exponentialRampToValueAtTime(0.001, when + 0.05);
    o.connect(g).connect(ctx.destination);
    o.start(when); o.stop(when + 0.07);
  }
  beep(t);
  var visEl = document.getElementById('seashorePulses');
  visEl.innerHTML = '<span style="width:10px;height:10px;border-radius:50%;background:var(--gold);display:inline-block;"></span>';
  for (var i = 0; i < intervals.length; i++) {
    t += intervals[i] / 1000;
    beep(t);
    (function(idx){
      setTimeout(function(){
        visEl.innerHTML += '<span style="width:10px;height:10px;border-radius:50%;background:var(--gold);display:inline-block;"></span>';
      }, intervals.slice(0, idx + 1).reduce(function(a,b){return a+b;}, 0));
    })(i);
  }
  var totalMs = intervals.reduce(function(a,b){return a+b;}, 0) + 80;
  return new Promise(function(r){ setTimeout(r, totalMs); });
}
window.seashoreNextTrial = async function(){
  if (SH.trials.length >= SH.maxTrials) {
    seashoreFinish();
    return;
  }
  document.getElementById('seashoreStartBtn').style.display = 'none';
  document.getElementById('seashoreJudge').style.display = 'none';
  document.getElementById('seashoreFeedback').textContent = '';
  var prompt = document.getElementById('seashorePrompt');
  prompt.textContent = 'Listen…';
  document.getElementById('seashorePulses').innerHTML = '';
  var n = 5 + Math.floor(Math.random()*4);
  var a = seashoreGenRhythm(n);
  var same = Math.random() < 0.5;
  var b = a.slice();
  if (!same) {
    var idx = Math.floor(Math.random()*b.length);
    var sign = Math.random() < 0.5 ? -1 : 1;
    b[idx] = Math.max(120, b[idx] + sign*(80 + Math.random()*80));
  }
  SH.current = { same: same };
  await seashorePlayRhythm(a);
  prompt.textContent = '— pause —';
  await new Promise(function(r){ setTimeout(r, 500); });
  document.getElementById('seashorePulses').innerHTML = '';
  prompt.textContent = 'Listen…';
  await seashorePlayRhythm(b);
  prompt.textContent = 'Were the rhythms the same or different?';
  document.getElementById('seashoreJudge').style.display = 'flex';
  SH.trialStart = performance.now();
};
window.seashoreAnswer = function(ans){
  if (!SH.current) return;
  var rt = performance.now() - SH.trialStart;
  var correct = (ans === 'same') === SH.current.same;
  SH.trials.push({ trial: SH.trials.length + 1, ground: SH.current.same ? 'same' : 'different', response: ans, rt: rt, correct: correct });
  SH.current = null;
  document.getElementById('seashoreJudge').style.display = 'none';
  var fb = document.getElementById('seashoreFeedback');
  fb.style.color = correct ? 'var(--ok, #6db38a)' : 'var(--err, #c46b6b)';
  fb.textContent = (correct ? '✓ Correct' : '✗ Incorrect') + ' (' + rt.toFixed(0) + ' ms) · ' + SH.trials.length + '/' + SH.maxTrials;
  document.getElementById('seashore-trial').textContent = SH.trials.length + '/' + SH.maxTrials;
  document.getElementById('seashoreProgressBar').style.width = (SH.trials.length / SH.maxTrials * 100).toFixed(0) + '%';
  if (SH.trials.length >= SH.maxTrials) {
    setTimeout(seashoreFinish, 800);
  } else {
    document.getElementById('seashoreStartBtn').style.display = '';
    document.getElementById('seashoreStartBtn').textContent = '▶ NEXT TRIAL';
  }
};
function seashoreFinish(){
  var total = SH.trials.length;
  var correct = SH.trials.filter(function(t){return t.correct;}).length;
  var meanRT = total ? SH.trials.reduce(function(a,t){return a+t.rt;}, 0) / total : 0;
  document.getElementById('seashoreStimPhase').style.display = 'none';
  document.getElementById('seashoreResultsPhase').style.display = 'block';
  document.getElementById('seashoreMetrics').innerHTML =
    '<div class="vrt-metric"><div class="vm-val">' + total + '</div><div class="vm-lbl">Trials</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + correct + '</div><div class="vm-lbl">Correct</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + (total ? (correct/total*100).toFixed(0) : 0) + '%</div><div class="vm-lbl">Accuracy</div></div>' +
    '<div class="vrt-metric"><div class="vm-val">' + meanRT.toFixed(0) + ' ms</div><div class="vm-lbl">Mean RT</div></div>';
  document.getElementById('seashoreProgressBar').style.width = '100%';
}
window.seashoreExportCSV = function(){
  if (!SH.trials.length) return;
  var rows = ['trial,ground,response,rt_ms,correct'];
  SH.trials.forEach(function(t){
    rows.push([t.trial, t.ground, t.response, t.rt.toFixed(0), t.correct].join(','));
  });
  var blob = new Blob([rows.join('\n')], { type: 'text/csv' });
  var a = document.createElement('a');
  a.href = URL.createObjectURL(blob);
  a.download = 'seashore_' + Date.now() + '.csv';
  a.click();
};
window.startSeashore = function(isPractice){
  SH.trials = []; SH.current = null; SH.isPractice = isPractice;
  SH.maxTrials = isPractice ? 5 : 20;
  hideAll();
  document.getElementById('seashoreScreen').style.display = 'flex';
  document.getElementById('seashorePracticeBanner').style.display = isPractice ? 'block' : 'none';
  document.getElementById('seashoreStimPhase').style.display = 'flex';
  document.getElementById('seashoreResultsPhase').style.display = 'none';
  document.getElementById('seashorePulses').innerHTML = '';
  document.getElementById('seashoreFeedback').textContent = '';
  document.getElementById('seashoreStartBtn').style.display = '';
  document.getElementById('seashoreStartBtn').textContent = '▶ START TRIAL';
  document.getElementById('seashorePrompt').textContent = 'Ready when you are.';
  document.getElementById('seashore-trial').textContent = '0/' + SH.maxTrials;
  document.getElementById('seashoreProgressBar').style.width = '0%';
};

// ─────────────────────────────────────────────────────────────
// AUDIOMETRY (Hughson-Westlake lite)
// ─────────────────────────────────────────────────────────────
var AUD_FREQS = [250, 500, 1000, 2000, 4000, 8000];
var AUD = null;
function audiomRefresh(){
  document.getElementById('audiomFreq').textContent = AUD_FREQS[AUD.freqIdx] + ' Hz';
  document.getElementById('audiomLevel').textContent = AUD.levelDb.toFixed(0) + ' dB ref';
  document.getElementById('audiom-status').textContent =
    'Freq ' + (AUD.freqIdx + 1) + '/' + AUD_FREQS.length + ' · ' + (AUD.direction === 'down' ? '▼ desc' : '▲ asc');
  document.getElementById('audiomProgressBar').style.width =
    (AUD.freqIdx / AUD_FREQS.length * 100).toFixed(0) + '%';
}
window.audiomPlay = function(){
  if (!AUD) return;
  var ctx = ensureAudioCtx();
  var refDb = parseFloat(document.getElementById('audiomRef').value) || -50;
  var effective = refDb + AUD.levelDb;
  var amp = Math.max(0.0001, Math.pow(10, effective / 20));
  var freq = AUD_FREQS[AUD.freqIdx];
  var dur = 0.3;
  var t0 = ctx.currentTime + 0.02;
  var o = ctx.createOscillator();
  var g = ctx.createGain();
  var p = ctx.createStereoPanner();
  p.pan.value = AUD.ear === 'left' ? -1 : 1;
  o.type = 'sine'; o.frequency.value = freq;
  g.gain.setValueAtTime(0, t0);
  g.gain.linearRampToValueAtTime(amp, t0 + 0.02);
  g.gain.setValueAtTime(amp, t0 + dur - 0.02);
  g.gain.linearRampToValueAtTime(0, t0 + dur);
  o.connect(g).connect(p).connect(ctx.destination);
  o.start(t0); o.stop(t0 + dur + 0.02);
  document.getElementById('audiomHeardBtn').disabled = false;
  document.getElementById('audiomNotHeardBtn').disabled = false;
  if (AUD._respTimer) clearTimeout(AUD._respTimer);
  AUD._respTimer = setTimeout(function(){
    document.getElementById('audiomHeardBtn').disabled = true;
    document.getElementById('audiomNotHeardBtn').disabled = true;
  }, 3000);
};
window.audiomRespond = function(heard){
  if (!AUD) return;
  document.getElementById('audiomHeardBtn').disabled = true;
  document.getElementById('audiomNotHeardBtn').disabled = true;
  if (AUD._respTimer) clearTimeout(AUD._respTimer);
  AUD.log.push({ freq: AUD_FREQS[AUD.freqIdx], level: AUD.levelDb, dir: AUD.direction, heard: heard });
  if (AUD.direction === 'down') {
    if (heard) {
      AUD.levelDb -= 10;
      if (AUD.levelDb < -40) { audiomFinishFreq(AUD.levelDb + 10); return; }
    } else {
      AUD.direction = 'up';
      AUD.levelDb += 5;
      AUD.upCount = 0; AUD.heardCount = 0;
    }
  } else {
    AUD.upCount++;
    if (heard) AUD.heardCount++;
    if (AUD.upCount >= 3) {
      if (AUD.heardCount >= 2) { audiomFinishFreq(AUD.levelDb); return; }
      AUD.levelDb += 5;
      AUD.upCount = 0; AUD.heardCount = 0;
    }
  }
  audiomRefresh();
};
function audiomFinishFreq(thresholdDb){
  AUD.threshold[AUD_FREQS[AUD.freqIdx]] = thresholdDb;
  audiomDrawGram();
  AUD.freqIdx++;
  if (AUD.freqIdx >= AUD_FREQS.length) {
    audiomFinish();
    return;
  }
  AUD.levelDb = -50;
  AUD.direction = 'down';
  AUD.upCount = 0; AUD.heardCount = 0;
  audiomRefresh();
}
function audiomDrawGram(){
  if (!AUD) return;
  var c = document.getElementById('audiogramCanvas');
  var ctx = c.getContext('2d');
  var W = c.width, H = c.height;
  ctx.fillStyle = '#060d14'; ctx.fillRect(0,0,W,H);
  var ml = 50, mt = 26, mr = 22, mb = 40;
  var pw = W - ml - mr, ph = H - mt - mb;
  var dbMin = -40, dbMax = 10;
  function xForFreq(f){
    var i = AUD_FREQS.indexOf(f);
    return ml + (i / (AUD_FREQS.length - 1)) * pw;
  }
  function yForDb(db){
    return mt + (1 - (db - dbMin) / (dbMax - dbMin)) * ph;
  }
  ctx.strokeStyle = 'rgba(212,180,86,0.12)';
  ctx.lineWidth = 1;
  ctx.font = '10px "Source Code Pro", monospace';
  ctx.fillStyle = '#7a8a96';
  for (var db = dbMin; db <= dbMax; db += 10) {
    var y = yForDb(db);
    ctx.beginPath(); ctx.moveTo(ml, y); ctx.lineTo(W - mr, y); ctx.stroke();
    ctx.fillText(db.toString(), 10, y + 4);
  }
  AUD_FREQS.forEach(function(f){
    var x = xForFreq(f);
    ctx.beginPath(); ctx.moveTo(x, mt); ctx.lineTo(x, H - mb); ctx.stroke();
    var lbl = f >= 1000 ? (f/1000) + 'k' : f.toString();
    ctx.fillText(lbl, x - 10, H - mb + 15);
  });
  ctx.fillStyle = '#d4a520';
  ctx.font = 'italic 12px "EB Garamond", serif';
  ctx.fillText('Audiogram · ' + (AUD.ear === 'right' ? 'Right (O)' : 'Left (X)'), ml, 18);

  var col = AUD.ear === 'right' ? '#d4a520' : '#6db3c8';
  var sym = AUD.ear === 'right' ? 'O' : 'X';
  ctx.fillStyle = col; ctx.strokeStyle = col; ctx.lineWidth = 2;
  ctx.font = 'bold 16px "Source Code Pro", monospace';
  ctx.textAlign = 'center';
  var prev = null;
  AUD_FREQS.forEach(function(f){
    if (AUD.threshold[f] == null) return;
    var x = xForFreq(f), y = yForDb(AUD.threshold[f]);
    if (prev) { ctx.beginPath(); ctx.moveTo(prev.x, prev.y); ctx.lineTo(x, y); ctx.stroke(); }
    ctx.fillText(sym, x, y + 5);
    prev = { x: x, y: y };
  });
  ctx.textAlign = 'left';
}
function audiomFinish(){
  document.getElementById('audiomStimPhase').style.display = 'none';
  document.getElementById('audiomResultsPhase').style.display = 'block';
  document.getElementById('audiomProgressBar').style.width = '100%';
  var rows = AUD_FREQS.map(function(f){
    var t = AUD.threshold[f];
    return '<div class="vrt-metric"><div class="vm-val">' + (t != null ? t.toFixed(0) : '—') + '</div><div class="vm-lbl">' + (f >= 1000 ? (f/1000) + 'k Hz' : f + ' Hz') + '</div></div>';
  }).join('');
  document.getElementById('audiomMetrics').innerHTML = rows;
}
window.audiomExportCSV = function(){
  if (!AUD || !AUD.log.length) return;
  var rows = ['freq_hz,level_db,direction,heard'];
  AUD.log.forEach(function(r){
    rows.push([r.freq, r.level, r.dir, r.heard].join(','));
  });
  rows.push('');
  rows.push('# THRESHOLDS');
  rows.push('freq_hz,threshold_db');
  AUD_FREQS.forEach(function(f){
    rows.push([f, AUD.threshold[f] != null ? AUD.threshold[f] : 'NA'].join(','));
  });
  var blob = new Blob([rows.join('\n')], { type: 'text/csv' });
  var a = document.createElement('a');
  a.href = URL.createObjectURL(blob);
  a.download = 'audiogram_' + Date.now() + '.csv';
  a.click();
};
window.startAudiom = function(isPractice){
  AUD = {
    ear: document.getElementById('audiomEar').value,
    freqIdx: 0, levelDb: -50, direction: 'down',
    upCount: 0, heardCount: 0,
    threshold: {}, log: [], isPractice: isPractice,
    _respTimer: null,
  };
  hideAll();
  document.getElementById('audiomScreen').style.display = 'flex';
  document.getElementById('audiomPracticeBanner').style.display = isPractice ? 'block' : 'none';
  document.getElementById('audiomStimPhase').style.display = 'flex';
  document.getElementById('audiomResultsPhase').style.display = 'none';
  document.getElementById('audiomEar').onchange = function(){
    if (AUD) { AUD.ear = this.value; audiomRefresh(); audiomDrawGram(); }
  };
  audiomRefresh();
  audiomDrawGram();
};

// ─────────────────────────────────────────────────────────────
// Keyboard shortcuts (only when a sensory screen is active)
// ─────────────────────────────────────────────────────────────
document.addEventListener('keydown', function(e){
  if (e.target.tagName === 'INPUT' || e.target.tagName === 'SELECT') return;
  // Seashore
  if (document.getElementById('seashoreScreen').style.display !== 'none' &&
      document.getElementById('seashoreJudge').style.display !== 'none') {
    if (e.key === 's' || e.key === 'S') seashoreAnswer('same');
    if (e.key === 'd' || e.key === 'D') seashoreAnswer('different');
  }
  // Audiometry
  if (document.getElementById('audiomScreen').style.display !== 'none') {
    if (e.key === ' ' || e.key === 'Enter') { e.preventDefault(); audiomPlay(); }
    if ((e.key === 'y' || e.key === 'Y') && !document.getElementById('audiomHeardBtn').disabled) audiomRespond(true);
    if ((e.key === 'n' || e.key === 'N') && !document.getElementById('audiomNotHeardBtn').disabled) audiomRespond(false);
  }
});

})();
</script>

<!-- ═══════════════════════════════════════════════════════════
     INTRO-SCREEN ANIMATIONS for sensory testing tasks.
     Hooked via ANIM_MAP entries: SNELLEN, ISHIHARA, SEASHORE, AUDIOM.
     Each draws on #introAnim (520×110) using requestAnimationFrame.
     ═══════════════════════════════════════════════════════════ -->
<script>
(function(){
  'use strict';
  var GOLD = '#d4a520', MID = '#7a8a96', BG = '#060d14', DIM = 'rgba(212,165,32,0.25)';

  function getIntroCtx(){
    var c = document.getElementById('introAnim');
    if (!c) return null;
    c.width = c.offsetWidth > 0 ? c.offsetWidth : 520;
    c.height = 110;
    return c.getContext('2d');
  }
  function clearBG(ctx){ ctx.fillStyle = BG; ctx.fillRect(0, 0, ctx.canvas.width, ctx.canvas.height); }
  function caption(ctx, txt, col){
    ctx.font = '10px "Source Code Pro", monospace';
    ctx.fillStyle = col || MID;
    ctx.textAlign = 'center';
    ctx.fillText(txt, ctx.canvas.width / 2, ctx.canvas.height - 10);
    ctx.textAlign = 'left';
  }

  // ── SNELLEN — shows a single letter shrinking through Snellen lines ──
  window.animSnellen = function tick(){
    if (window._stopIntroAnim_called) return;
    window._snellenAnimRAF = requestAnimationFrame(tick);
    var ctx = getIntroCtx(); if (!ctx) return;
    var W = ctx.canvas.width, H = ctx.canvas.height;
    clearBG(ctx);

    // Cycle through letter sizes — analogous to the Snellen progression
    var phase = (Date.now() / 1100) % 5;
    var sizes = [62, 44, 30, 22, 14];
    var labels = ['20/200', '20/100', '20/50', '20/30', '20/20'];
    var size = sizes[Math.floor(phase)];
    var lbl  = labels[Math.floor(phase)];
    var letters = ['E', 'FP', 'TOZ', 'LPED', 'PECFD'];

    // Cream-coloured Snellen card
    ctx.fillStyle = '#f4eedd';
    ctx.fillRect(W/2 - 100, 8, 200, H - 28);
    ctx.fillStyle = '#0a0a0a';
    ctx.font = 'bold ' + size + 'px "Courier New", monospace';
    ctx.textAlign = 'center';
    ctx.textBaseline = 'middle';
    ctx.fillText(letters[Math.floor(phase)], W/2, H/2 - 4);
    ctx.textBaseline = 'alphabetic';

    // Side label in gold
    ctx.font = '10px "Source Code Pro", monospace';
    ctx.fillStyle = GOLD; ctx.textAlign = 'left';
    ctx.fillText(lbl, W/2 + 108, H/2);

    caption(ctx, 'shrinking lines · smallest line correctly read = acuity', GOLD);
  };

  // ── ISHIHARA — animated dot field with a digit cycling ──
  var ishCircles = null;
  var ishLastDigit = -1;
  function ishPack(W, H){
    var pts = [];
    var cx = W/2, cy = H/2 - 8, R = Math.min(W, H) / 2 - 14;
    var attempts = 0;
    while (attempts < 2500 && pts.length < 220) {
      attempts++;
      var r = 2 + Math.random()*3;
      var a = Math.random()*Math.PI*2;
      var rr = Math.sqrt(Math.random())*(R - r - 1);
      var x = cx + rr*Math.cos(a), y = cy + rr*Math.sin(a);
      var ok = true;
      for (var i = pts.length-1; i >= 0 && ok; i--) {
        var c = pts[i];
        var dx = c.x-x, dy = c.y-y, dm = c.r+r+0.8;
        if (dx*dx+dy*dy < dm*dm) ok = false;
      }
      if (ok) pts.push({x:x, y:y, r:r});
    }
    return pts;
  }
  window.animIshihara = function tick(){
    if (window._stopIntroAnim_called) return;
    window._ishihAnimRAF = requestAnimationFrame(tick);
    var ctx = getIntroCtx(); if (!ctx) return;
    var W = ctx.canvas.width, H = ctx.canvas.height;
    clearBG(ctx);

    // Cycle digit every ~1.6 s
    var digits = ['12', '8', '5', '74', '3'];
    var phase = Math.floor((Date.now() / 1600) % digits.length);
    var digit = digits[phase];
    var isBY = (phase === 4);  // last plate is blue-yellow

    if (!ishCircles) ishCircles = ishPack(W, H);

    // Digit mask via temporary canvas
    var mask = document.createElement('canvas');
    mask.width = W; mask.height = H;
    var mc = mask.getContext('2d');
    mc.fillStyle = '#fff';
    mc.font = 'bold ' + Math.round(H * 0.7) + 'px "Courier New", monospace';
    mc.textAlign = 'center'; mc.textBaseline = 'middle';
    mc.fillText(digit, W/2, H/2 - 8);
    var md = mc.getImageData(0, 0, W, H).data;
    function onFig(x, y){
      var ix = Math.round(x), iy = Math.round(y);
      if (ix < 0 || iy < 0 || ix >= W || iy >= H) return false;
      return md[(iy*W+ix)*4] > 128;
    }

    var figPal = isBY ? ['#3a7ac8', '#4f6da8', '#3d92b8'] : ['#d6724e', '#c8593a', '#e08a5d'];
    var bgPal  = isBY ? ['#c8a850', '#d8b260', '#b89848'] : ['#7a8a3a', '#92964a', '#8a9c4e'];

    // Clip to disc
    ctx.save();
    ctx.beginPath();
    ctx.arc(W/2, H/2 - 8, Math.min(W, H)/2 - 14, 0, Math.PI*2);
    ctx.clip();
    ctx.fillStyle = '#13202e';
    ctx.fillRect(0, 0, W, H);
    for (var i = 0; i < ishCircles.length; i++) {
      var c = ishCircles[i];
      var pal = onFig(c.x, c.y) ? figPal : bgPal;
      ctx.fillStyle = pal[i % pal.length];
      ctx.beginPath();
      ctx.arc(c.x, c.y, c.r, 0, Math.PI*2);
      ctx.fill();
    }
    ctx.restore();

    caption(ctx, isBY ? 'blue-yellow plate · tritan axis' : 'red-green plate · protan/deutan axis',
            isBY ? '#6db3c8' : GOLD);
  };

  // ── SEASHORE — visualises beat sequence with pulses ──
  window.animSeashore = function tick(){
    if (window._stopIntroAnim_called) return;
    window._seashAnimRAF = requestAnimationFrame(tick);
    var ctx = getIntroCtx(); if (!ctx) return;
    var W = ctx.canvas.width, H = ctx.canvas.height;
    clearBG(ctx);

    // Two rhythm rows, cycling every ~3 seconds
    var cycle = (Date.now() / 3000) % 1;
    var rowY1 = H/2 - 18, rowY2 = H/2 + 18;
    var rhythm = [0, 0.18, 0.30, 0.55, 0.72, 0.88]; // 6-beat pattern (normalized)
    var pulseDur = 0.04;

    function drawRow(yy, intervals, gold){
      ctx.fillStyle = MID; ctx.font = '9px "Source Code Pro", monospace'; ctx.textAlign = 'left';
      ctx.fillText(gold ? 'A' : 'B', 20, yy + 4);
      // baseline
      ctx.strokeStyle = 'rgba(122,138,150,0.2)'; ctx.lineWidth = 1;
      ctx.beginPath(); ctx.moveTo(40, yy); ctx.lineTo(W - 40, yy); ctx.stroke();
      // beat markers
      for (var i = 0; i < intervals.length; i++) {
        var x = 40 + intervals[i] * (W - 80);
        var active = Math.abs(intervals[i] - cycle) < pulseDur;
        ctx.fillStyle = active ? GOLD : 'rgba(122,138,150,0.45)';
        ctx.beginPath();
        ctx.arc(x, yy, active ? 6 : 3, 0, Math.PI*2);
        ctx.fill();
      }
    }
    drawRow(rowY1, rhythm, true);
    // Row B differs at one position (perturbed beat)
    var rhythmB = rhythm.slice();
    rhythmB[3] = 0.62;  // perturbed
    drawRow(rowY2, rhythmB, false);

    var sameOrDiff = cycle > 0.6 ? 'JUDGE: same or different?' : 'two rhythms · attend';
    caption(ctx, sameOrDiff, GOLD);
  };

  // ── AUDIOMETRY — animated audiogram with descending/ascending markers ──
  window.animAudiom = function tick(){
    if (window._stopIntroAnim_called) return;
    window._audAnimRAF = requestAnimationFrame(tick);
    var ctx = getIntroCtx(); if (!ctx) return;
    var W = ctx.canvas.width, H = ctx.canvas.height;
    clearBG(ctx);

    var ml = 50, mr = 16, mt = 10, mb = 26;
    var pw = W - ml - mr, ph = H - mt - mb;
    var freqs = [250, 500, 1000, 2000, 4000, 8000];

    // Animated thresholds — looks like the staircase converging
    var phase = (Date.now() / 80) % freqs.length;
    var thresholds = freqs.map(function(f, i){
      // Settled values for "left ear normal hearing" feel
      var base = [5, 0, -5, -10, -5, 0][i];
      // Add a wobble for the currently-active frequency
      var active = (i === Math.floor(phase));
      if (active) {
        // staircase descend/ascend pattern
        var sub = (Date.now() / 100) % 8;
        return base + Math.sin(sub) * 5;
      }
      return base;
    });

    // Grid
    ctx.strokeStyle = 'rgba(212,165,32,0.12)'; ctx.lineWidth = 1;
    ctx.font = '8px "Source Code Pro", monospace'; ctx.fillStyle = MID;
    for (var db = -20; db <= 10; db += 10) {
      var y = mt + (1 - (db + 20) / 30) * ph;
      ctx.beginPath(); ctx.moveTo(ml, y); ctx.lineTo(W - mr, y); ctx.stroke();
      ctx.fillText(db, 28, y + 3);
    }
    for (var i = 0; i < freqs.length; i++) {
      var x = ml + (i / (freqs.length - 1)) * pw;
      ctx.beginPath(); ctx.moveTo(x, mt); ctx.lineTo(x, H - mb); ctx.stroke();
      var lbl = freqs[i] >= 1000 ? (freqs[i]/1000) + 'k' : freqs[i];
      ctx.fillText(lbl, x - 7, H - mb + 10);
    }

    // Threshold line
    ctx.strokeStyle = GOLD; ctx.lineWidth = 1.5;
    ctx.beginPath();
    thresholds.forEach(function(t, i){
      var x = ml + (i / (freqs.length - 1)) * pw;
      var y = mt + (1 - (t + 20) / 30) * ph;
      if (i === 0) ctx.moveTo(x, y); else ctx.lineTo(x, y);
    });
    ctx.stroke();
    // O markers
    ctx.fillStyle = GOLD; ctx.font = 'bold 12px "Source Code Pro", monospace';
    ctx.textAlign = 'center';
    thresholds.forEach(function(t, i){
      var x = ml + (i / (freqs.length - 1)) * pw;
      var y = mt + (1 - (t + 20) / 30) * ph;
      ctx.fillText('O', x, y + 4);
    });
    ctx.textAlign = 'left';

    caption(ctx, 'Hughson-Westlake · 6 frequencies · ▼ 10dB / ▲ 5dB', GOLD);
  };

  // Stop hooks for all four anims — _stopIntroAnim already exists and cancels animRAF
  // for the main animation system, but my window-scoped RAFs aren't in that registry.
  // Hook them too so leaving the intro screen stops drawing.
  var origStop = window._stopIntroAnim;
  window._stopIntroAnim = function(){
    if (typeof origStop === 'function') origStop();
    [window._snellenAnimRAF, window._ishihAnimRAF, window._seashAnimRAF, window._audAnimRAF].forEach(function(id){
      if (id) cancelAnimationFrame(id);
    });
    window._snellenAnimRAF = null;
    window._ishihAnimRAF = null;
    window._seashAnimRAF = null;
    window._audAnimRAF = null;
  };
})();
</script>

<!-- ═══════════════════════════════════════════════════════════
     ABORT BUTTON — floating button to bail out of any task and
     return to the main home grid. Works across all 80+ tasks.
     ═══════════════════════════════════════════════════════════ -->
<style>
  #abortFab {
    position: fixed;
    top: 14px;
    right: 14px;
    z-index: 99999;
    background: rgba(196, 107, 107, 0.12);
    border: 1px solid rgba(196, 107, 107, 0.7);
    color: #c46b6b;
    font-family: 'Source Code Pro', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    padding: 6px 12px;
    border-radius: 2px;
    cursor: pointer;
    transition: all 0.18s ease-out;
    display: none;
    backdrop-filter: blur(6px);
  }
  #abortFab.show {
    display: inline-block;
    animation: abortFadeIn 0.25s ease-out;
  }
  #abortFab:hover {
    background: #c46b6b;
    color: #0a0a0a;
    border-color: #c46b6b;
    transform: translateY(-1px);
  }
  #abortFab:active {
    transform: translateY(0);
  }
  @keyframes abortFadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  @media (prefers-reduced-motion: reduce) {
    #abortFab { transition: none !important; animation: none !important; }
    #abortFab:hover, #abortFab:active { transform: none !important; }
  }
</style>

<script>
/* The abort button is injected into <body> on DOMContentLoaded (not at end of
   file in case the file appends content after </body>). It uses .show class
   instead of body class to avoid CSS specificity issues. */
(function(){
  'use strict';

  // Inject the button into <body> as soon as the DOM is parsed
  function injectButton() {
    if (document.getElementById('abortFab')) return; // already injected
    var btn = document.createElement('button');
    btn.id = 'abortFab';
    btn.title = 'Abort task and return to home (Esc)';
    btn.textContent = '✕ ABORT';
    btn.onclick = function() { window.cognosAbort(); };
    // Try body, fall back to html element
    var parent = document.body || document.documentElement;
    parent.appendChild(btn);
  }

  function getHomeEl() { return document.getElementById('home'); }
  function getLoginEl() { return document.getElementById('loginScreen'); }
  function getDashboardEl() { return document.getElementById('researcherDashboard'); }

  function isVisibleEl(el) {
    if (!el) return false;
    var s = window.getComputedStyle(el);
    return s.display !== 'none' && s.visibility !== 'hidden';
  }

  // The button is visible whenever the home screen is NOT visible.
  // (Login and dashboard screens, if present, also count as "not in a task".)
  function updateAbortVisibility() {
    var btn = document.getElementById('abortFab');
    if (!btn) { injectButton(); btn = document.getElementById('abortFab'); }
    if (!btn) return;
    var onHome = isVisibleEl(getHomeEl());
    var onLogin = isVisibleEl(getLoginEl());
    var onDash = isVisibleEl(getDashboardEl());
    var shouldShow = !onHome && !onLogin && !onDash;
    btn.classList.toggle('show', shouldShow);
  }

  // Wrap hideAll so we re-check visibility after every navigation
  function wrapHideAll() {
    if (typeof window.hideAll !== 'function') return false;
    if (window.hideAll._abortWrapped) return true;
    var orig = window.hideAll;
    window.hideAll = function() {
      var r = orig.apply(this, arguments);
      // Defer so the subsequent .style.display='flex' on the new screen lands first
      setTimeout(updateAbortVisibility, 0);
      return r;
    };
    window.hideAll._abortWrapped = true;
    return true;
  }

  // Also poll periodically as a safety net — some code paths might
  // toggle screen visibility without going through hideAll.
  function pollLoop() {
    updateAbortVisibility();
    setTimeout(pollLoop, 500);
  }

  // Public abort handler
  window.cognosAbort = function() {
    if (typeof window.resetAll === 'function') {
      try { window.resetAll(); } catch (e) { console.error('[abort] resetAll failed:', e); }
    } else if (typeof window.hideAll === 'function') {
      try { window.hideAll(); } catch (e) {}
      var home = getHomeEl();
      if (home) home.style.display = 'flex';
    }
    updateAbortVisibility();
  };

  // Esc key shortcut
  document.addEventListener('keydown', function(e) {
    if (e.key !== 'Escape') return;
    var btn = document.getElementById('abortFab');
    if (!btn || !btn.classList.contains('show')) return;
    var ae = document.activeElement;
    if (ae && (ae.tagName === 'INPUT' || ae.tagName === 'TEXTAREA' || ae.tagName === 'SELECT')) return;
    e.preventDefault();
    window.cognosAbort();
  });

  function boot() {
    injectButton();
    var wrapped = wrapHideAll();
    if (!wrapped) {
      // hideAll not defined yet — retry shortly
      setTimeout(function(){ wrapHideAll(); }, 100);
      setTimeout(function(){ wrapHideAll(); }, 500);
    }
    pollLoop();
  }

  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', boot);
  } else {
    boot();
  }
})();
</script>

<script>
/* ═══════════════════════════════════════════════════════════════════════
   MOUSE RESPONSE BUTTONS — inject on-screen clickable response buttons into
   task stimulus phases that only had keyboard handlers, so the battery is
   fully usable by mouse. Buttons call each task's existing response function
   (the same one its keys call), so behaviour is identical to pressing the key.
   Tasks that already shipped on-screen buttons (Flanker, Stroop, ERN, P600,
   Stop, N400) are left untouched. Spatial/grid tasks (MTS, VRT, Posner-grid)
   respond to clicks on their own stimuli and need no button bar.
   ═══════════════════════════════════════════════════════════════════════ */
(function(){
  // task → { phase: StimPhase container id, btns: [ [label, onclickExpr], … ] }
  var MAP = {
    audiom: { phase:'audiomStimPhase', btns:[['HEARD','audiomRespond(true)'],['NOT HEARD','audiomRespond(false)']] },
    cnv:    { phase:'cnvStimPhase',    btns:[['GO','cnvRespond(\'GO\')'],['WITHHOLD','cnvRespond(\'NONE\')']] },
    elan:   { phase:'elanStimPhase',   btns:[['GRAMMATICAL','elanRespond(\'OK\')'],['VIOLATION','elanRespond(\'VIOL\')']] },
    n170:   { phase:'n170StimPhase',   btns:[['FACE','n170Respond(true)'],['OBJECT','n170Respond(false)']] },
    lrp:    { phase:'lrpStimPhase',    btns:[['LEFT hand','lrpRespond(\'L\')'],['RIGHT hand','lrpRespond(\'R\')']] },
    n2pc:   { phase:'n2pcStimPhase',   btns:[['Target LEFT','n2pcRespond(\'L\')'],['Target RIGHT','n2pcRespond(\'R\')']] },
    n300:   { phase:'n300StimPhase',   btns:[['SAME category','n300Respond(\'SAME\')'],['DIFFERENT','n300Respond(\'DIFF\')']] }
  };
  function inject(){
    Object.keys(MAP).forEach(function(key){
      var cfg=MAP[key];
      var phase=document.getElementById(cfg.phase);
      if(!phase) return;
      if(phase.querySelector('.mouse-resp-row')) return; // already injected
      var row=document.createElement('div');
      row.className='stb-resp-row mouse-resp-row';
      row.style.cssText='display:flex;gap:16px;align-items:center;justify-content:center;margin-top:10px;flex-wrap:wrap;';
      cfg.btns.forEach(function(b){
        var btn=document.createElement('button');
        btn.type='button';
        btn.className='stb-resp-btn';
        btn.textContent=b[0];
        // Use the same response function the keyboard handler uses. Wrapped in
        // a function so it fires on click exactly as a keypress would.
        btn.setAttribute('onclick', b[1]);
        row.appendChild(btn);
      });
      phase.appendChild(row);
    });
  }
  if(document.readyState==='loading') document.addEventListener('DOMContentLoaded', inject);
  else inject();
})();
</script>

<script>
/* ═══════════════════════════════════════════════════════════════════════
   COGNOS — IN-PAGE TEST HARNESS  (standalone, mirrors the EEG viewer harness)
   Structural self-test for a 112-task cognitive/ERP battery. Because the tasks
   are interactive and timed, this harness verifies STRUCTURE (does every task
   register, resolve a paradigm, localize, dispatch its intro, and export) — it
   does NOT simulate human responses or validate per-task scoring behaviour.

   Entry: window.runCognosTests()  → consent gate → suite picker
   Reads globals exposed by the main script: window.PARADIGMS, window.I18N,
   window._cognosLang, COGNOS_RESULTS, showIntro(), resetAll(), exportAllCSV().
   ═══════════════════════════════════════════════════════════════════════ */
(function(){
  'use strict';

  // ── result recording ──
  var _results=[];
  function rec(name, okFlag, detail){ _results.push({name:name, ok:!!okFlag, detail:detail||''}); }
  function ok(name, cond, detail){ rec(name, cond, detail); }

  // ── small helpers ──
  function $(id){ return document.getElementById(id); }
  function taskList(){
    return Array.prototype.map.call(document.querySelectorAll('.task-tile[data-task]'),
      function(t){ return t.dataset.task; });
  }
  function langs(){ return ['en','es','fr','de','zh','ja','pt','he','ar','nl','af','fi','ru']; }

  // ═══════════ SUITE 1 — TILES ═══════════
  // Every task tile exists, carries a non-empty label, and task codes are unique.
  function pathTiles(){
    var tiles=document.querySelectorAll('.task-tile[data-task]');
    ok('tiles: task tiles present', tiles.length>0, tiles.length+' tiles');
    var seen={}, dupes=[], blank=[];
    Array.prototype.forEach.call(tiles, function(t){
      var k=t.dataset.task;
      if(seen[k]) dupes.push(k); seen[k]=true;
      var txt=(t.textContent||'').replace(/\s+/g,' ').trim();
      if(!txt) blank.push(k);
    });
    ok('tiles: no duplicate task codes', dupes.length===0, dupes.length?('dupes: '+dupes.join(', ')):(Object.keys(seen).length+' unique codes'));
    ok('tiles: every tile has a visible label', blank.length===0, blank.length?('blank: '+blank.join(', ')):'all labelled');
    // Each tile has an onclick that calls showIntro (the uniform launch path).
    var noHandler=[];
    Array.prototype.forEach.call(tiles, function(t){
      var oc=t.getAttribute('onclick')||'';
      if(oc.indexOf('showIntro')<0) noHandler.push(t.dataset.task);
    });
    ok('tiles: every tile dispatches via showIntro', noHandler.length===0,
       noHandler.length?('missing: '+noHandler.slice(0,8).join(', ')):(tiles.length+' wired'));

    // Completion checkmarks: refreshTaskTileChecks() must mark the tile of any
    // task that has a session result, and clear tiles that don't. Snapshot the
    // session store, inject a synthetic result, verify the tile flips, restore.
    ok('tiles: refreshTaskTileChecks present', typeof window.refreshTaskTileChecks==='function',
       typeof window.refreshTaskTileChecks==='function'?'ok':'not global');
    if(typeof window.refreshTaskTileChecks==='function' && window.COGNOS_RESULTS && tiles.length){
      var sampleTile = tiles[0];
      var code = (sampleTile.getAttribute('data-task')||'').toUpperCase();
      var savedRaw=null;
      try{ savedRaw=localStorage.getItem('cognos_results_v1'); }catch(_){}
      try{
        // Clear first so we have a known baseline, then confirm tile is unchecked.
        window.COGNOS_RESULTS.clear();
        window.refreshTaskTileChecks();
        var wasOff = !sampleTile.classList.contains('completed');
        // Record a result for this tile's task; the tile should now be checked.
        window.COGNOS_RESULTS.record(code, code, {score:'1'}, []);
        window.refreshTaskTileChecks();
        var nowOn = sampleTile.classList.contains('completed');
        ok('tiles: completing a task checks its tile', wasOff && nowOn,
           'before='+(wasOff?'unchecked':'CHECKED') + ' after='+(nowOn?'checked':'NOT CHECKED')+' ('+code+')');
      } catch(e){
        rec('tiles: completing a task checks its tile', false, 'threw: '+(e&&e.message||e));
      } finally {
        try{
          if(savedRaw==null) localStorage.removeItem('cognos_results_v1');
          else localStorage.setItem('cognos_results_v1', savedRaw);
        }catch(_){}
        // Note: COGNOS_RESULTS._session can't be restored from here, but the
        // harness runs against a fresh load; clearing leaves a clean state.
        try{ window.refreshTaskTileChecks(); }catch(_){}
      }
    }

    // Practice completion → YELLOW check (.practiced); a recorded run → GREEN
    // (.completed), and green must win when both are present. Snapshot/restore
    // the practice store + results so we don't disturb real state.
    ok('tiles: PRACTICE_DONE store present',
       typeof window.PRACTICE_DONE==='object' && window.PRACTICE_DONE && typeof window.PRACTICE_DONE.mark==='function',
       (typeof window.PRACTICE_DONE==='object')?'mark/has/all/clear':'missing');
    if(typeof window.PRACTICE_DONE==='object' && window.PRACTICE_DONE && tiles.length && window.COGNOS_RESULTS){
      var pt = tiles[0];
      var pcode = (pt.getAttribute('data-task')||'').toUpperCase();
      var savedPrac=null, savedRes=null;
      try{ savedPrac=localStorage.getItem('cognos_practice_done_v1'); }catch(_){}
      try{ savedRes=localStorage.getItem('cognos_results_v1'); }catch(_){}
      try{
        window.PRACTICE_DONE.clear(); window.COGNOS_RESULTS.clear();
        window.PRACTICE_DONE.mark(pcode);
        window.refreshTaskTileChecks();
        var yellow = pt.classList.contains('practiced') && !pt.classList.contains('completed');
        ok('tiles: practice completion shows yellow check', yellow,
           yellow?('practiced (not completed) — '+pcode):'practiced='+pt.classList.contains('practiced')+' completed='+pt.classList.contains('completed'));
        // now record a real run — green joins; BOTH classes should be present
        // so the yellow and green checks render side by side.
        window.COGNOS_RESULTS.record(pcode, pcode, {score:'1',trials:1}, [{trial:1}]);
        window.refreshTaskTileChecks();
        var both = pt.classList.contains('completed') && pt.classList.contains('practiced');
        ok('tiles: practiced + recorded show both checks side by side', both,
           both?'completed + practiced both present (yellow left, green right)':
                'completed='+pt.classList.contains('completed')+' practiced='+pt.classList.contains('practiced'));
      } catch(e){
        rec('tiles: practice vs recorded check', false, 'threw: '+(e&&e.message||e));
      } finally {
        try{ if(savedPrac==null) localStorage.removeItem('cognos_practice_done_v1'); else localStorage.setItem('cognos_practice_done_v1', savedPrac); }catch(_){}
        try{ if(savedRes==null) localStorage.removeItem('cognos_results_v1'); else localStorage.setItem('cognos_results_v1', savedRes); }catch(_){}
        try{ window.PRACTICE_DONE.clear(); window.refreshTaskTileChecks(); }catch(_){}
      }
    }
  }

  // ═══════════ SUITE 2 — PARADIGMS ═══════════
  // Every tile's task code must resolve to a paradigm definition (name+body),
  // either in English PARADIGMS or via the I18N fallback chain. This directly
  // guards the documented historical bug where English PARADIGMS held only ~10
  // of ~108 definitions and unlocalized tiles threw on `p.name`.
  function pathParadigms(){
    var P=window.PARADIGMS, I=window.I18N;
    ok('paradigms: PARADIGMS registry present', !!P, P?(Object.keys(P).length+' English entries'):'missing on window');
    ok('paradigms: I18N registry present', !!I, I?(Object.keys(I).length+' language registries'):'missing on window');
    if(!P || !I){ return; }
    var tasks=taskList();
    // Resolve each task the way showIntro does: I18N[lang].paradigms[task] || PARADIGMS[task] || any-lang.
    function resolve(task){
      if(P[task]) return {src:'en', p:P[task]};
      var ls=langs();
      for(var i=0;i<ls.length;i++){
        var L=I[ls[i]];
        if(L && L.paradigms && L.paradigms[task]) return {src:ls[i], p:L.paradigms[task]};
      }
      return null;
    }
    var unresolved=[], noName=[], noBody=[], enCount=0, fallbackCount=0;
    tasks.forEach(function(t){
      var r=resolve(t);
      if(!r){ unresolved.push(t); return; }
      if(r.src==='en') enCount++; else fallbackCount++;
      if(!r.p || !r.p.name) noName.push(t);
      if(!r.p || !r.p.body) noBody.push(t);
    });
    ok('paradigms: every task resolves a paradigm', unresolved.length===0,
       unresolved.length?('UNRESOLVED: '+unresolved.join(', ')):(tasks.length+' tasks resolve'));
    ok('paradigms: every resolved paradigm has a name', noName.length===0,
       noName.length?('no name: '+noName.join(', ')):'all named');
    ok('paradigms: every resolved paradigm has a body', noBody.length===0,
       noBody.length?('no body: '+noBody.join(', ')):'all have body text');
    rec('paradigms: English vs fallback coverage (info)', true,
        enCount+' in English PARADIGMS, '+fallbackCount+' via language fallback');
    // Every task must carry a canonical reference (cite + ideally a PMID) so the
    // intro screen can link to the primary paper.
    if(typeof window.TASK_REFERENCES==='object' && window.TASK_REFERENCES){
      var R=window.TASK_REFERENCES;
      var noRef=[], noCite=[], withDoi=0, viaSearch=0;
      tasks.forEach(function(t){
        var r=R[String(t).toUpperCase()] || R[t];
        if(!r){ noRef.push(t); return; }
        if(!r.cite){ noCite.push(t); }
        if(r.doi) withDoi++;
        else if(!(r.pmid && r.pmidVerified)) viaSearch++;
      });
      ok('paradigms: every task has a reference', noRef.length===0,
         noRef.length?('MISSING ref: '+noRef.join(', ')):(tasks.length+' tasks referenced'));
      ok('paradigms: every reference has a citation string', noCite.length===0,
         noCite.length?('no cite: '+noCite.join(', ')):'all cited');
      // Links: a verified DOI (or explicitly-verified PMID) gives a direct link;
      // everything else uses a citation search, which can never resolve to the
      // wrong paper. Unverified numeric PMIDs are NOT shown as direct links.
      rec('paradigms: reference links (info)', true,
          withDoi+' link directly via DOI; '+viaSearch+' use a citation-based PubMed search');
      ok('paradigms: reference render function present', typeof window._renderTaskReference==='function',
         typeof window._renderTaskReference==='function'?'ok':'not global');
    } else {
      ok('paradigms: TASK_REFERENCES registry present', false, 'missing on window');
    }
  }

  // ═══════════ SUITE 3 — I18N ═══════════
  // Coverage across the 13 interface languages: each language has an I18N entry,
  // tile labels exist for every task, and the paradigm registries are reported
  // for completeness. Mirrors the EEG i18n suite that caught an unregistered key.
  function pathI18n(){
    var I=window.I18N;
    ok('i18n: I18N table present', !!I, I?(Object.keys(I).length+' languages'):'missing');
    if(!I) return;
    var L=langs();
    // Selector should offer the same languages.
    var sel=$('lang-select');
    var selLangs = sel ? Array.prototype.map.call(sel.options, function(o){return o.value;}) : [];
    ok('i18n: language selector present', selLangs.length>0, selLangs.length+' languages in dropdown');
    // Every supported language has an I18N registry.
    var missing=L.filter(function(l){ return !I[l]; });
    ok('i18n: every supported language has an I18N entry', missing.length===0,
       missing.length?('missing: '+missing.join(', ')):('all '+L.length+' present'));
    // English baseline: tiles namespace must cover every task code.
    var tasks=taskList();
    var enTiles=(I.en && I.en.tiles)||{};
    var tilesMissing=tasks.filter(function(t){ return !(t in enTiles); });
    ok('i18n: English tile labels cover all tasks', tilesMissing.length===0,
       tilesMissing.length?('no en tile: '+tilesMissing.slice(0,10).join(', ')):(tasks.length+' tile labels'));
    // Paradigm coverage per language (informational — fallback chain handles gaps).
    var cov=L.map(function(l){
      var n=(I[l] && I[l].paradigms)?Object.keys(I[l].paradigms).length:0;
      return l+':'+n;
    });
    rec('i18n: paradigm coverage per language (info)', true, cov.join('  '));
    // setLang round-trip: switch to es and back, confirm currentLang tracked.
    if(typeof window.setLang==='function'){
      var snap=window._cognosLang||'en';
      try{
        window.setLang('es');
        ok('i18n: setLang switches language', window._cognosLang==='es', 'after setLang(es) → '+window._cognosLang);
      } finally { window.setLang(snap); }
    } else rec('i18n: setLang switches language', false, 'setLang not global');
    // US/UK English variants: dropdown offers both, and the spelling transform
    // converts US→UK and reverses cleanly.
    var enUS=document.querySelector('#lang-select option[value="en"]');
    var enGB=document.querySelector('#lang-select option[value="en-GB"]');
    ok('i18n: US and UK English options present', !!enUS && !!enGB,
       (enUS&&enGB)?'en (US) + en-GB (UK)':'missing en variant option');
    ok('i18n: English spelling transform present', typeof window.applyEnglishVariantSpelling==='function',
       typeof window.applyEnglishVariantSpelling==='function'?'ok':'not global');
    if(typeof window.EN_US_TO_UK==='object' && window.EN_US_TO_UK){
      var map=window.EN_US_TO_UK;
      var sane = map.color==='colour' && map.behavior==='behaviour' && map.center==='centre' &&
                 map.analyze==='analyse' && map.randomized==='randomised';
      ok('i18n: US→UK spelling map covers common forms', sane,
         sane?'color/behavior/center/analyze/randomized map correctly':'spelling map incomplete');
    }
  }

  // ═══════════ SUITE 4 — DISPATCH ═══════════
  // Launch EVERY task's intro screen via the real showIntro() path and confirm
  // it does not throw and leaves an intro visible. showIntro only shows the
  // paradigm/intro screen (no timed stimuli, no audio), so this is safe for all
  // 112 tasks. resetAll() is called after each to return home and clear timers.
  function pathDispatch(){
    if(typeof window.showIntro!=='function'){ rec('dispatch: showIntro available', false, 'not global'); return; }
    rec('dispatch: showIntro available', true, 'ok');
    if(typeof window.resetAll!=='function') rec('dispatch: resetAll available', false, 'not global — cleanup limited');
    else rec('dispatch: resetAll available', true, 'ok');
    var tasks=taskList();
    var threw=[], shown=0;
    var introEl=$('introScreen');
    tasks.forEach(function(t){
      try{
        window.showIntro(t);
        // Intro screen should be visible after a successful showIntro.
        if(introEl && introEl.style.display!=='none') shown++;
      }catch(e){ threw.push(t+'('+(e&&e.message?e.message.slice(0,30):'err')+')'); }
      // Cleanup: return home + kill any timers the intro may have started.
      try{ if(typeof window.resetAll==='function') window.resetAll(); }catch(_e){}
    });
    ok('dispatch: every task intro launches without throwing', threw.length===0,
       threw.length?('threw: '+threw.slice(0,6).join(' | ')+(threw.length>6?(' …+'+(threw.length-6)):'')):(tasks.length+' intros launched'));
    ok('dispatch: intro screen shown for tasks', shown>=tasks.length*0.9,
       shown+' of '+tasks.length+' showed an intro screen');
    // Leave the app at home.
    try{ if(typeof window.resetAll==='function') window.resetAll(); }catch(_e){}
  }

  // ═══════════ SUITE — DISPATCH PARITY (3 intro paths in sync) ═══════════
  // A task launches through THREE dispatchers: _doStartPractice (BEGIN
  // PRACTICE), _doSkipToMain (MAIN TASK), and startMain (BEGIN after
  // practice). Each is a hand-maintained else-if chain. The failure mode: a
  // task gets wired into one (usually startMain) but missed in the others, so
  // that path falls through to the generic selectTask() fallback — which shows
  // the shared #taskscreen (YES/GO panel) with no stimulus instead of the
  // task's real screen. (This is exactly what bit LRP Extended / THALPHA / RRN
  // and several older tasks: present in startMain, absent from practice/skip.)
  //
  // We parse each dispatcher body from source, collect the task codes it
  // explicitly handles, and assert that every code handled by ANY dispatcher is
  // handled by ALL THREE. Tasks that legitimately use the generic engine have
  // NO dedicated handler in any dispatcher (they hit the shared else), so they
  // never appear in the union and are correctly ignored.
  function pathTextInputGuard(){
    // No COGNITIVE TASK should depend on free typing — those tasks have been
    // converted to recognition / multiple-choice. This scans every task screen
    // for a visible <input type=text|number|email> or <textarea>, excluding a
    // whitelist of legitimate inputs (intake, config, vision tasks where typing
    // the seen letters/numbers IS the task, and the two generative fluency
    // tasks where typing is intrinsic and has no recognition equivalent).
    var ALLOW = {
      // participant intake / config (not a task)
      'pq-id':1,'pq-session':1,'pq-age':1,'pq-notes':1,'trigUrlInput':1,'ccon-inst':1,'ccon-name':1,'ccon-email':1,
      // run-parameter / config numeric fields (not task responses)
      'trialsInput':1,'introTrialsInput':1,'posnerSOA':1,'snellenDist':1,'audiomRef':1,
      // vision/clock tasks where typing what you SEE is the measured response
      'snellenInput':1,'ishiharaInput':1,'cdtTimeInput':1,
      // arithmetic tasks where entering the number IS the task (no recognition form)
      'pasatInput':1,'frDistractorInput':1,
      // generative fluency — typing is intrinsic, no valid recognition form (deliberate exceptions)
      'semfluencyInput':1,'phonflueInput':1
    };
    var typed=[];
    var nodes=document.querySelectorAll('input[type=text],input[type=number],input[type=email],input:not([type]),textarea');
    Array.prototype.forEach.call(nodes,function(el){
      var id=el.id||'(no-id)';
      if(ALLOW[id]) return;
      // Is it inside a task screen?
      var scr=el.closest ? el.closest('.task-screen,[id$="Screen"]') : null;
      typed.push({id:id, screen:scr?scr.id:'(global)'});
    });
    ok('textguard: no cognitive task uses a free-text input', typed.length===0,
       typed.length ? ('stray text inputs: '+typed.map(function(t){return t.id+'@'+t.screen;}).slice(0,12).join(', ')) :
       'all recall/naming tasks are recognition or multiple-choice; only intake/vision/fluency use typing (whitelisted)');
    // Explicitly confirm the converted tasks no longer have their old typed inputs wired as task responses.
    ['frRecallInput','ravltInput','cvltInput','palInput','bntInput'].forEach(function(id){
      var el=document.getElementById(id);
      var visible = el && el.offsetParent!==null && getComputedStyle(el).display!=='none';
      ok('textguard: legacy typed input "'+id+'" is not the active response', !visible || !!ALLOW[id],
         visible ? (id+' is visible — task may still expect typing') : (id+' hidden/removed (recognition path)'));
    });
  }

  function pathMicGuard(){
    // No task should request the microphone on its own. In the default
    // (keyboard) input mode, opening or starting any task must NOT trigger
    // getUserMedia or toggleMic — a permission prompt mid-task is a distractor.
    // This instruments both and launches every task to catch stray triggers.
    if(typeof window.showIntro!=='function'){ rec('micguard: showIntro available', false, 'not global'); return; }
    var prevMode = (typeof window.inputMode!=='undefined') ? window.inputMode : null;
    try{ if(typeof window.inputMode!=='undefined') window.inputMode='keyboard'; }catch(_e){}

    // Instrument the two mic entry points.
    var triggers=[];
    var nav = navigator.mediaDevices;
    var realGUM = (nav && nav.getUserMedia) ? nav.getUserMedia.bind(nav) : null;
    var realToggle = window.toggleMic;
    var current='(load)';
    if(nav){ try{ nav.getUserMedia=function(){ triggers.push(current+':getUserMedia'); return Promise.reject(new Error('blocked-by-harness')); }; }catch(_e){} }
    if(typeof realToggle==='function'){ window.toggleMic=function(){ triggers.push(current+':toggleMic'); return Promise.resolve(); }; }

    var tasks=taskList();
    var offenders={};
    try{
      tasks.forEach(function(t){
        current=t;
        try{ window.showIntro(t); window.currentIntroTask=t; }catch(_e){}
        // exercise ALL start paths — practice, skip, and main — since the mic
        // check / mic requests historically lived in any of them.
        try{ if(typeof window.startPractice==='function'){ window.currentIntroTask=t; window.startPractice(); } }catch(_e){}
        try{ if(typeof window.resetAll==='function') window.resetAll(); }catch(_e){}
        try{ if(typeof window.skipToMain==='function'){ window.currentIntroTask=t; window.skipToMain(); } }catch(_e){}
        try{ if(typeof window.resetAll==='function') window.resetAll(); }catch(_e){}
        try{ if(typeof window._doStartMain==='function'){ window.currentIntroTask=t; window._doStartMain(); } }catch(_e){}
        try{ if(typeof window.resetAll==='function') window.resetAll(); }catch(_e){}
      });
    }catch(_e){}

    // Selecting VOICE input mode must NOT auto-prompt either — this is where
    // the unprompted dialog actually occurred (mic requested on mode-select /
    // task proceed). Tasks may use voice only via an explicit mic-button click.
    var voiceTriggers0 = triggers.length;
    try{
      if(typeof window.setInputMode==='function'){ current='setInputMode(voice)'; window.setInputMode('voice'); }
      try{ window.inputMode='voice'; }catch(_e){}
      tasks.forEach(function(t){
        current=t+'(voice)';
        try{ window.showIntro(t); }catch(_e){}
        try{ if(typeof window._doStartMain==='function'){ window.currentIntroTask=t; window._doStartMain(); } }catch(_e){}
        try{ if(typeof window.resetAll==='function') window.resetAll(); }catch(_e){}
      });
    }catch(_e){}
    try{ if(typeof window.setInputMode==='function') window.setInputMode('keyboard'); }catch(_e){}
    var voiceOnlyTriggers = triggers.slice(voiceTriggers0).map(function(x){return x.split(':')[0];});
    // Restore originals.
    if(nav && realGUM){ try{ nav.getUserMedia=realGUM; }catch(_e){} }
    if(typeof realToggle==='function'){ window.toggleMic=realToggle; }
    try{ if(prevMode!==null) window.inputMode=prevMode; }catch(_e){}
    try{ if(typeof window.resetAll==='function') window.resetAll(); }catch(_e){}

    triggers.forEach(function(tr){ var tk=tr.split(':')[0]; offenders[tk]=1; });
    var list=Object.keys(offenders);
    ok('micguard: no task requests the mic in keyboard mode', list.length===0,
       list.length ? ('mic triggered by: '+list.slice(0,10).join(', ')+(list.length>10?(' …+'+(list.length-10)):'')) : (tasks.length+' tasks launched, none triggered the mic'));
    ok('micguard: selecting voice mode / starting tasks never auto-prompts the mic', voiceOnlyTriggers.length===0,
       voiceOnlyTriggers.length ? ('auto-prompt from: '+voiceOnlyTriggers.slice(0,10).join(', ')) : 'voice mode is opt-in via the mic button only');
    ok('micguard: RECALL (recognition) never touches the mic', !offenders['RECALL'],
       offenders['RECALL'] ? 'RECALL triggered a mic request' : 'recognition task is mic-free');
  }

  function pathAutoResume(){
    // Exercises the ACTUAL auto-resume mechanism for every task: persist it as
    // the last task, then trigger its tile's launch path (exactly what the
    // resume handler does via tile.click), and confirm the intro opened. This
    // catches tasks that store/launch fine via showIntro but fail to resume.
    if(typeof window.showIntro!=='function'){ rec('autoresume: showIntro available', false, 'not global'); return; }
    var introEl=$('introScreen');
    var tasks=taskList();
    var noTile=[], noStore=[], noOpen=[], threw=[], ok_count=0;
    tasks.forEach(function(t){
      try{
        // 1) the tile the resume handler will look for must exist
        var tile=document.querySelector('.task-tile[data-task="'+t+'"]');
        if(!tile){ noTile.push(t); return; }
        // 2) opening the task must persist it as cognosLastTask
        try{ localStorage.removeItem('cognosLastTask'); }catch(_e){}
        window.showIntro(t);
        var stored=null; try{ stored=localStorage.getItem('cognosLastTask'); }catch(_e){}
        if(stored!==t){ noStore.push(t); }
        try{ if(typeof window.resetAll==='function') window.resetAll(); }catch(_e){}
        // 3) the resume path itself (tile.click) must reopen the intro
        try{ localStorage.setItem('cognosLastTask', t); }catch(_e){}
        tile.click();
        if(introEl && introEl.style.display!=='none') ok_count++; else noOpen.push(t);
      }catch(e){ threw.push(t+'('+(e&&e.message?e.message.slice(0,24):'err')+')'); }
      try{ if(typeof window.resetAll==='function') window.resetAll(); }catch(_e){}
    });
    ok('autoresume: every task has a resumable tile', noTile.length===0,
       noTile.length?('no tile: '+noTile.slice(0,8).join(', ')):(tasks.length+' tiles found'));
    ok('autoresume: opening a task stores it as last task', noStore.length===0,
       noStore.length?('not stored: '+noStore.slice(0,8).join(', ')):'all store cognosLastTask');
    ok('autoresume: tile-click resume reopens the intro', noOpen.length===0,
       noOpen.length?('did not reopen: '+noOpen.slice(0,8).join(', ')+(noOpen.length>8?(' …+'+(noOpen.length-8)):'')):(ok_count+' tasks resumed'));
    ok('autoresume: no task threw during resume', threw.length===0,
       threw.length?('threw: '+threw.slice(0,6).join(' | ')):'clean');
    try{ if(typeof window.resetAll==='function') window.resetAll(); }catch(_e){}
  }

  function pathDispatchParity(){
    var src=document.documentElement.innerHTML;
    function bodyOf(fnName){
      // grab from "function fnName(" to the matching end — cheap heuristic:
      // capture up to the next "function " declaration at line start.
      var re=new RegExp('function\\s+'+fnName+'\\s*\\([^)]*\\)\\s*\\{([\\s\\S]*?)\\n\\s*function\\s','m');
      var m=src.match(re);
      return m?m[1]:'';
    }
    function codesIn(body){
      // Only count codes dispatched to a DEDICATED start function. Codes routed
      // to the generic selectTask() use the shared engine on purpose and do not
      // require per-path parity (the trailing `else` handles them everywhere).
      var set={}, re=/currentIntroTask\s*===?\s*'([A-Z0-9-]+)'\s*\)\s*\{\s*([A-Za-z0-9_]+)\s*\(/g, m;
      while((m=re.exec(body))){
        var code=m[1], fn=m[2];
        if(fn==='selectTask') continue;   // generic engine — parity not required
        set[code]=true;
      }
      return set;
    }
    var pBody=bodyOf('_doStartPractice'), kBody=bodyOf('_doSkipToMain'), mBody=bodyOf('_doStartMain');
    var found = pBody && kBody && mBody;
    ok('parity: all three dispatchers located in source', !!found,
       found?'_doStartPractice / _doSkipToMain / _doStartMain':'MISSING: '+
       [!pBody&&'_doStartPractice',!kBody&&'_doSkipToMain',!mBody&&'_doStartMain'].filter(Boolean).join(', '));
    if(!found) return;
    var P=codesIn(pBody), K=codesIn(kBody), M=codesIn(mBody);
    // union of all explicitly-handled codes
    var all={}; [P,K,M].forEach(function(s){ for(var k in s) all[k]=true; });
    var union=Object.keys(all).sort();
    rec('parity: explicitly-dispatched task codes (info)', true,
        'practice='+Object.keys(P).length+'  skip='+Object.keys(K).length+'  main='+Object.keys(M).length+'  union='+union.length);
    // any code handled by at least one dispatcher must be handled by all three
    var gaps=[];
    union.forEach(function(code){
      var miss=[];
      if(!P[code]) miss.push('practice');
      if(!K[code]) miss.push('skip');
      if(!M[code]) miss.push('main');
      if(miss.length) gaps.push(code+' → missing from '+miss.join('+'));
    });
    ok('parity: every dedicated task wired in all 3 intro paths', gaps.length===0,
       gaps.length?('DISPATCH GAP: '+gaps.slice(0,8).join('  |  ')+(gaps.length>8?('  …+'+(gaps.length-8)):'')):(union.length+' task codes consistent across practice/skip/main'));
    // Behavioural cross-check for a known-tricky task: LRP Extended must reach
    // its own screen (not the generic #taskscreen) via the practice path.
    try{
      if(typeof window.showIntro==='function' && typeof window._doStartPractice!=='function'){
        // _doStartPractice may be closure-scoped; only assert if reachable.
      }
    }catch(_){}
    // Pre-task countdown: overlay element exists, the gate function is present,
    // and all three start paths route through it (so every task gets 3·2·1).
    var cdOv=document.getElementById('cognosCountdown');
    ok('countdown: overlay element present', !!cdOv, cdOv?'#cognosCountdown':'missing');
    ok('countdown: cognosCountdown() gate present', typeof window.cognosCountdown==='function',
       typeof window.cognosCountdown==='function'?'ok':'not global');
    var sp=bodyOf('startPractice'), sk=bodyOf('skipToMain');
    var smWrap=src.match(/function\s+startMain\s*\(\)\s*\{([^}]*)\}/);
    var smBody=smWrap?smWrap[1]:'';
    var allGated = /cognosCountdown\s*\(/.test(sp) && /cognosCountdown\s*\(/.test(sk) && /cognosCountdown\s*\(/.test(smBody);
    ok('countdown: practice / skip / main all route through countdown', allGated,
       allGated?'3·2·1 precedes every task start':'NOT gated: '+
       [!/cognosCountdown/.test(sp)&&'practice',!/cognosCountdown/.test(sk)&&'skip',!/cognosCountdown/.test(smBody)&&'main'].filter(Boolean).join(', '));
    // Shared arrow renderer: helpers exist and produce a valid SVG arrow.
    ok('arrows: SVG + canvas arrow helpers present',
       typeof window.cognosArrowSVG==='function' && typeof window.cognosSetArrow==='function' && typeof window.cognosDrawArrow==='function',
       'cognosArrowSVG/cognosSetArrow/cognosDrawArrow');
    if(typeof window.cognosArrowSVG==='function'){
      var svgR=window.cognosArrowSVG('right'), svgL=window.cognosArrowSVG('left'), svgB=window.cognosArrowSVG('both');
      var validR=/<svg/.test(svgR)&&/polyline/.test(svgR)&&/<line/.test(svgR);
      var mirrored=/scaleX\(-1\)/.test(svgL);
      var dbl=(svgB.match(/polyline/g)||[]).length===2;
      ok('arrows: SVG arrow has shaft+head, mirrors left, double-heads neutral',
         validR && mirrored && dbl,
         'right='+validR+' leftMirror='+mirrored+' neutralDouble='+dbl);
    }
    if(typeof window.cognosFlankerRowHTML==='function'){
      var inc=window.cognosFlankerRowHTML('→ → ← → →');
      var nSvg=(inc.match(/<svg/g)||[]).length;
      // incongruent row: 5 arrow glyphs → 5 svgs; center differs from flankers
      ok('arrows: Flanker row renders 5 SVG arrows (interference layout kept)',
         nSvg===5, nSvg+' svg arrows in incongruent row (expect 5)');
    }
    // Central latency suppression: RT stays in the sidebar, never in .feedback.
    ok('latency: strip helper present', typeof window._stripLatencyText==='function',
       typeof window._stripLatencyText==='function'?'ok':'not global');
    if(typeof window._stripLatencyText==='function'){
      var s1=window._stripLatencyText('426 ms ✓');
      var s2=window._stripLatencyText('512 ms ✗ FA');
      var s3=window._stripLatencyText('✓ Withheld');
      var noMs = !/\d\s*ms/i.test(s1) && !/\d\s*ms/i.test(s2);
      ok('latency: RT stripped from feedback, correctness kept', noMs && s1==='✓' && s2==='✗ FA' && s3==='✓ Withheld',
         'got ['+s1+'] ['+s2+'] ['+s3+']');
      ok('latency: feedback observer installed', typeof window._latencyObserver==='object' && !!window._latencyObserver,
         window._latencyObserver?(window._latencyFeedbackCount+' .feedback elements watched'):'observer missing');
    }
  }
  // A session must begin with the participant questionnaire, and the captured
  // participant/session metadata must be (a) attached to every recorded result
  // and (b) carried into the CSV/JSON exports. We verify the screen + gate +
  // store exist, that the gate fields onto a fresh recorded result, then
  // snapshot/restore so we never pollute the real participant or results data.
  function pathParticipant(){
    var ps=document.getElementById('participantScreen');
    ok('participant: intake screen present', !!ps, ps?'#participantScreen':'missing');
    var hasStore = typeof window.PARTICIPANT==='object' && window.PARTICIPANT && typeof window.PARTICIPANT.set==='function';
    ok('participant: PARTICIPANT store present', hasStore, hasStore?'set/get/fields/clear':'missing on window');
    ok('participant: start + skip handlers present',
       typeof window.participantStart==='function' && typeof window.participantSkip==='function',
       'participantStart='+(typeof window.participantStart)+' participantSkip='+(typeof window.participantSkip));
    // required intake fields exist in the form
    var reqFields=['pq-id','pq-consent','pq-age','pq-sex','pq-hand','pq-edu','pq-session','pq-notes'];
    var missingF=reqFields.filter(function(id){ return !document.getElementById(id); });
    ok('participant: questionnaire fields present', missingF.length===0,
       missingF.length?('missing: '+missingF.join(', ')):(reqFields.length+' fields'));
    if(!hasStore || !window.COGNOS_RESULTS) return;
    // Snapshot real state.
    var savedP=null, savedRaw=null, savedRoster=null;
    try{ savedP=JSON.parse(JSON.stringify(window.PARTICIPANT.get())); }catch(_){ savedP=null; }
    try{ savedRaw=localStorage.getItem('cognos_results_v1'); }catch(_){}
    try{ savedRoster=localStorage.getItem('cognos_participant_roster_v1'); }catch(_){}
    try{
      // Set a synthetic participant, record a result, confirm stamping + export.
      window.PARTICIPANT.set({participantId:'__TESTP__', sessionLabel:'harness', age:'42', handedness:'right', consent:true});
      var pf=window.PARTICIPANT.fields();
      ok('participant: fields() exposes id + session', pf.participant_id==='__TESTP__' && !!pf.session_id,
         'id='+pf.participant_id+' session='+(pf.session_id?'set':'EMPTY'));
      var entry=window.COGNOS_RESULTS.record('__TEST__','__TEST__',{score:'1'},[]);
      var stamped = entry && entry.participant && entry.participant.participant_id==='__TESTP__';
      ok('participant: recorded result carries participant fields', !!stamped,
         stamped?'participant_id + session_id stamped onto entry':'entry.participant missing or wrong');
      // filename helper keys off participant id
      var fn = (typeof _resultsFilename==='function') ? _resultsFilename('csv') : '';
      ok('participant: export filename keyed to participant', /__TESTP__/.test(fn),
         fn||'(no _resultsFilename)');
      // Roster: save() should have upserted the profile; recall should return it;
      // remove should clear it. (Anonymous must never be added.)
      var hasRoster = typeof window.PARTICIPANT.getRoster==='function' &&
                      typeof window.PARTICIPANT.recallFromRoster==='function' &&
                      typeof window.PARTICIPANT.removeFromRoster==='function';
      ok('participant: roster API present', hasRoster,
         hasRoster?'getRoster/recallFromRoster/removeFromRoster':'roster fns missing');
      if(hasRoster){
        var recalled=window.PARTICIPANT.recallFromRoster('__TESTP__');
        ok('participant: profile saved to & recalled from roster',
           !!recalled && recalled.age==='42' && recalled.handedness==='right',
           recalled?('recalled age='+recalled.age+' hand='+recalled.handedness):'not found in roster');
        // anonymous must not pollute the roster
        window.PARTICIPANT.set({participantId:'', anonymous:true, consent:false});
        var anonInRoster = (window.PARTICIPANT.getRoster()||[]).some(function(x){ return x.anonymous || x.participantId===''; });
        ok('participant: anonymous sessions excluded from roster', !anonInRoster,
           anonInRoster?'an anonymous/empty profile leaked into roster':'roster holds only named profiles');
        // cleanup the synthetic roster entry
        window.PARTICIPANT.removeFromRoster('__TESTP__');
        var stillThere = !!window.PARTICIPANT.recallFromRoster('__TESTP__');
        ok('participant: removeFromRoster deletes profile', !stillThere,
           stillThere?'profile survived removal':'profile removed cleanly');
      }
    } catch(e){
      rec('participant: stamping/export check', false, 'threw: '+(e&&e.message||e));
    } finally {
      // Restore real state precisely.
      try{ if(savedP) window.PARTICIPANT.set(savedP); else window.PARTICIPANT.clear(); }catch(_){}
      try{
        if(savedRaw==null) localStorage.removeItem('cognos_results_v1');
        else localStorage.setItem('cognos_results_v1', savedRaw);
      }catch(_){}
      try{
        if(savedRoster==null) localStorage.removeItem('cognos_participant_roster_v1');
        else localStorage.setItem('cognos_participant_roster_v1', savedRoster);
      }catch(_){}
    }
  }

  // ═══════════ SUITE 5 — EXPORT ═══════════
  // The results store + export path produce valid output. We seed one synthetic
  // result into COGNOS_RESULTS, confirm it round-trips, and that the export
  // function runs without throwing. Snapshot/restore so we don't pollute real data.
  function pathExport(){
    var CR=window.COGNOS_RESULTS;
    ok('export: COGNOS_RESULTS store present', !!CR, CR?'ok':'missing on window');
    // exportAllCSV is the global "export everything" entry.
    ok('export: exportAllCSV function present', typeof window.exportAllCSV==='function',
       typeof window.exportAllCSV==='function'?'ok':'not global');
    if(CR){
      // Probe the store's real API surface (record / getSession / getHistory / clear).
      var hasAdd = typeof CR.record==='function' || typeof CR.add==='function' || typeof CR.push==='function';
      var hasRead = typeof CR.getSession==='function' || typeof CR.getHistory==='function' || typeof CR.getAll==='function';
      ok('export: results store has record + read API', hasAdd && hasRead,
         'record='+(typeof CR.record==='function')+' getSession='+(typeof CR.getSession==='function')+' getHistory='+(typeof CR.getHistory==='function'));
      // Read current-session and persisted-history counts (no mutation).
      var sCount='?', hCount='?';
      try{ if(typeof CR.getSession==='function') sCount=CR.getSession().length; }catch(e){ sCount='err'; }
      try{ if(typeof CR.getHistory==='function') hCount=CR.getHistory().length; }catch(e){ hCount='err'; }
      rec('export: session / history entry counts (info)', true, 'session='+sCount+'  history='+hCount);
    }
    // Sequence export for ERP processing must exist, and auto-record must
    // capture a trial count + per-trial sequence into rawLog. Snapshot/restore.
    ok('export: exportSequenceCSV present', typeof window.exportSequenceCSV==='function',
       typeof window.exportSequenceCSV==='function'?'ok':'not global');
    ok('export: cognosAutoRecord present', typeof window.cognosAutoRecord==='function',
       typeof window.cognosAutoRecord==='function'?'ok':'not global');
    // The results-phase observer must be installed so recording fires even for
    // tasks that don't call updateSidebar() themselves (P300, CSR, N200, MoCA...).
    ok('export: results-phase observer installed on all phases',
       typeof window._cognosResultObserverCount==='number' && window._cognosResultObserverCount>50,
       'observed phases = '+(window._cognosResultObserverCount!=null?window._cognosResultObserverCount:'NONE'));
    // Regression: cognosAutoRecord must IGNORE a results-phase whose parent
    // screen is hidden (stale display:block from a prior task) and only record
    // the one that is actually on-screen. We assert via the visibility helper.
    if(typeof window._cognosIsReallyVisible==='function'){
      var probe=null;
      try{
        // A block element nested under a display:none parent must read invisible.
        var parent=document.createElement('div'); parent.style.display='none';
        var child=document.createElement('div'); child.style.display='block';
        parent.appendChild(child); document.body.appendChild(parent);
        var staleHidden = !window._cognosIsReallyVisible(child);
        document.body.removeChild(parent);
        ok('export: stale results-phase under hidden screen is ignored', staleHidden,
           staleHidden?'hidden-parent block correctly reads invisible':'visibility test FAILED — stale phases would record');
      }catch(e){
        rec('export: stale results-phase visibility', false, 'threw: '+(e&&e.message||e));
        try{ if(probe&&probe.parentNode) probe.parentNode.removeChild(probe); }catch(_){}
      }
    }
    if(CR && typeof CR.record==='function'){
      var savedRaw=null;
      try{ savedRaw=localStorage.getItem('cognos_results_v1'); }catch(_){}
      try{
        var seq=[{trial:1,type:'standard'},{trial:2,type:'deviant'},{trial:3,type:'standard'}];
        var e=CR.record('__SEQTEST__','__SEQTEST__',{score:'ok',trials:seq.length},seq);
        var okRaw = e && Array.isArray(e.rawLog) && e.rawLog.length===3 &&
                    e.rawLog[1] && e.rawLog[1].type==='deviant';
        ok('export: result carries per-trial sequence (rawLog)', !!okRaw,
           okRaw?('rawLog has '+e.rawLog.length+' ordered trials'):'rawLog missing or wrong shape');
        ok('export: result carries trial count', e && e.metrics && e.metrics.trials===3,
           e&&e.metrics?('trials='+e.metrics.trials):'no metrics');
      } catch(err){
        rec('export: sequence capture', false, 'threw: '+(err&&err.message||err));
      } finally {
        try{ if(savedRaw==null) localStorage.removeItem('cognos_results_v1');
             else localStorage.setItem('cognos_results_v1', savedRaw); }catch(_){}
      }
    }
    // We do NOT actually trigger a file download in the harness (it would prompt
    // a save dialog); presence + type check is the structural assertion.
    // Purge: the function must exist; we verify its underlying clears work
    // (without invoking it directly, since it is confirm()-gated). Snapshot/restore.
    ok('export: purgeAllResults present', typeof window.purgeAllResults==='function',
       typeof window.purgeAllResults==='function'?'ok':'not global');
    if(CR && typeof CR.clear==='function' && typeof window.PRACTICE_DONE==='object'){
      var sRes=null, sPrac=null;
      try{ sRes=localStorage.getItem('cognos_results_v1'); }catch(_){}
      try{ sPrac=localStorage.getItem('cognos_practice_done_v1'); }catch(_){}
      try{
        CR.record('__PURGETEST__','__PURGETEST__',{score:'1',trials:1},[{trial:1}]);
        window.PRACTICE_DONE.mark('__PURGETEST__');
        CR.clear(); window.PRACTICE_DONE.clear();
        var resCleared = (CR.getSession()||[]).length===0;
        var pracCleared = (window.PRACTICE_DONE.all()||[]).length===0;
        ok('export: purge clears results + practice marks', resCleared && pracCleared,
           'session='+(resCleared?'empty':'NOT EMPTY')+' practice='+(pracCleared?'empty':'NOT EMPTY'));
      } catch(e){
        rec('export: purge clears results + practice marks', false, 'threw: '+(e&&e.message||e));
      } finally {
        try{ if(sRes==null) localStorage.removeItem('cognos_results_v1'); else localStorage.setItem('cognos_results_v1', sRes); }catch(_){}
        try{ if(sPrac==null) localStorage.removeItem('cognos_practice_done_v1'); else localStorage.setItem('cognos_practice_done_v1', sPrac); }catch(_){}
      }
    }
    // Per-task trial-count overrides: taskTrials() must honour practice count,
    // a per-task override, the shared box, and the coded default in that order.
    ok('trials: taskTrials resolver present', typeof window.taskTrials==='function',
       typeof window.taskTrials==='function'?'ok':'not global');
    ok('trials: TASK_TRIALS store present',
       typeof window.TASK_TRIALS==='object' && window.TASK_TRIALS && typeof window.TASK_TRIALS.set==='function',
       (typeof window.TASK_TRIALS==='object')?'get/set/clear/all':'missing');
    if(typeof window.taskTrials==='function' && typeof window.TASK_TRIALS==='object' && window.TASK_TRIALS){
      var sTrials=null;
      try{ sTrials=localStorage.getItem('cognos_task_trials_v1'); }catch(_){}
      var sharedEl=document.getElementById('trialsInput');
      var sharedSaved = sharedEl?sharedEl.value:null;
      try{
        window.TASK_TRIALS.clear('__TT__');
        if(sharedEl) sharedEl.value='25';
        var prac = window.taskTrials('__TT__',7,40,true);
        var shared = window.taskTrials('__TT__',7,40,false);
        window.TASK_TRIALS.set('__TT__',88);
        var over = window.taskTrials('__TT__',7,40,false);
        window.TASK_TRIALS.clear('__TT__');
        ok('trials: resolver precedence (practice/shared/override)',
           prac===7 && shared===25 && over===88,
           'practice='+prac+' shared='+shared+' override='+over);
      } catch(e){
        rec('trials: resolver precedence', false, 'threw: '+(e&&e.message||e));
      } finally {
        try{ if(sharedEl && sharedSaved!=null) sharedEl.value=sharedSaved; }catch(_){}
        try{ if(sTrials==null) localStorage.removeItem('cognos_task_trials_v1'); else localStorage.setItem('cognos_task_trials_v1', sTrials); }catch(_){}
      }
    }
    // Live signal-detection readouts: hits/FA tally + d′/β from a scored log.
    ok('sdt: hits/FA tally helper present', typeof window._computeHitsFA==='function',
       typeof window._computeHitsFA==='function'?'ok':'not global');
    ok('sdt: d′/β helper present', typeof window._computeSDT==='function',
       typeof window._computeSDT==='function'?'ok':'not global');
    if(typeof window._computeHitsFA==='function' && typeof window._computeSDT==='function'){
      // oddball-style log: 4 oddballs (3 correct), 6 standards (1 FA)
      var lg=[
        {isOddball:true,correct:true,rt:400},{isOddball:true,correct:true,rt:420},
        {isOddball:true,correct:false,rt:null},{isOddball:true,correct:true,rt:390},
        {isOddball:false,correct:true,rt:null},{isOddball:false,correct:true,rt:null},
        {isOddball:false,correct:false,rt:300},{isOddball:false,correct:true,rt:null},
        {isOddball:false,correct:true,rt:null},{isOddball:false,correct:true,rt:null}
      ];
      var hf=window._computeHitsFA(lg);
      var okHF = hf && hf.hits===3 && hf.fa===1 && hf.nTarget===4 && hf.nNon===6;
      ok('sdt: hits/FA derived from oddball log', okHF,
         hf?('hits='+hf.hits+' fa='+hf.fa+' targets='+hf.nTarget+' nontargets='+hf.nNon+' (expect 3/1/4/6)'):'null');
      var sdt = hf ? window._computeSDT(hf) : null;
      var dn = sdt ? parseFloat(sdt.dprime) : NaN;
      var bn = sdt ? parseFloat(sdt.beta) : NaN;
      ok('sdt: d′ computed and finite', sdt && isFinite(dn) && dn>0,
         sdt?("d'="+sdt.dprime+' β='+sdt.beta):'null');
      // No-target log (passive) → null (no SDT shown)
      var passive=window._computeHitsFA([{trial:1,type:'standard'},{trial:2,type:'deviant'}]);
      ok('sdt: passive log yields no hit/FA concept', passive===null,
         passive===null?'correctly null for passive':'unexpectedly produced a tally');
    }
    // Per-condition latency split (LEXDEC word vs non-word) helper exists and runs.
    ok('sdt: condition-latency helper present', typeof window._updateConditionLatencies==='function',
       typeof window._updateConditionLatencies==='function'?'ok':'not global');
    if(typeof window._updateConditionLatencies==='function'){
      var threw=false;
      try{
        window._updateConditionLatencies('LEXDEC', [
          {real:true,correct:true,rt:500},{real:false,correct:true,rt:620}
        ]);
        // and a code with no split should hide rows without error
        window._updateConditionLatencies('MMN', [{type:'standard'}]);
      }catch(e){ threw=true; }
      ok('sdt: condition-latency split runs for LEXDEC (and no-ops elsewhere)', !threw,
         threw?'threw':'word/non-word split computed; non-split tasks hidden');
    }
  }

  // ═══════════ SUITE 6 — UINAV ═══════════
  // Navigation safety: from home → an intro → back home via resetAll leaves the
  // home screen visible and no task screen stuck open. The cognos analog of the
  // EEG viewer's "every back button returns to safety".
  function pathUINav(){
    var home=$('home');
    ok('uinav: home screen present', !!home, home?'ok':'#home missing');
    if(typeof window.showIntro!=='function' || typeof window.resetAll!=='function'){
      rec('uinav: showIntro + resetAll available', false, 'missing globals'); return;
    }
    rec('uinav: showIntro + resetAll available', true, 'ok');
    var sample=taskList().slice(0,5);
    var introEl=$('introScreen');
    var enteredOK=true, returnedOK=true, failAt='';
    sample.forEach(function(t){
      try{
        window.showIntro(t);
        if(!(introEl && introEl.style.display!=='none')){ enteredOK=false; if(!failAt) failAt=t+' (no intro)'; }
        window.resetAll();
        if(home && home.style.display==='none'){ returnedOK=false; if(!failAt) failAt=t+' (home hidden after reset)'; }
        if(introEl && introEl.style.display!=='none'){ returnedOK=false; if(!failAt) failAt=t+' (intro still shown after reset)'; }
      }catch(e){ enteredOK=false; if(!failAt) failAt=t+' threw'; }
    });
    ok('uinav: intro opens for sampled tasks', enteredOK, enteredOK?(sample.length+' intros opened'):('failed at '+failAt));
    ok('uinav: resetAll returns to home (safety)', returnedOK, returnedOK?'home restored each time':('failed: '+failAt));
    // Final safety: ensure we end at home.
    try{ window.resetAll(); }catch(_e){}
    ok('uinav: ends at home', !home || home.style.display!=='none', 'home visible at end');
  }

  // ═══════════ SUITE 7 — AUDITORY UI ═══════════
  // The auditory ERP tasks (tones via Web Audio) are the most UI-fragile: each
  // has a screen plus trial/phase/metrics readouts its code writes to, and the
  // makeTask-based ones (P3A/N100/P50/ASSR) throw at start/end if any of the
  // four scaffold elements is missing. This suite checks the DOM contract for
  // every auditory task, launches each intro, and confirms cleanup leaves no
  // open AudioContext or stuck screen. No sound is produced (intros only).
  function pathAuditory(){
    // task → { mk:usesMakeTask, key:domPrefix(lowercase), critical:[displayElementIds] }
    // 'key' is the makeTask key / DOM id prefix; criticals are readouts the task
    // writes to during a run (a missing one throws mid-task).
    var AUD=[
      {task:'P300',  key:'p300',  mk:false, critical:['p300-trial','p300-phase','p300-std-freq','p300-odd-freq']},
      {task:'MMN',   key:'mmn',   mk:false, critical:['mmn-trial','mmn-phase','mmnMetrics']},
      {task:'MMNSP', key:'mmns',  mk:false, screenId:'mmnspeechScreen', critical:['mmns-trial','mmns-phase','mmnsMetrics']},
      {task:'P3A',   key:'p3a',   mk:true,  critical:['p3a-trial','p3a-phase','p3aMetrics']},
      {task:'N100',  key:'n100',  mk:true,  critical:['n100-trial','n100Metrics']},
      {task:'P50',   key:'p50',   mk:true,  critical:['p50-trial','p50-phase','p50Metrics']},
      {task:'ABR',   key:'abr',   mk:false, critical:['abr-trial','abr-phase','abrMetrics']},
      {task:'ASSR',  key:'assr',  mk:true,  critical:['assr-trial','assrMetrics']},
      {task:'ORN',   key:'orn',   mk:false, critical:[]},
      {task:'LDAEP', key:'ldaep', mk:false, critical:[]},
      {task:'SPR-A', key:'spra',  mk:false, critical:[]}
    ];
    var tiles=taskList();

    // 1. Every auditory task has a tile that dispatches via showIntro.
    var noTile=AUD.filter(function(a){ return tiles.indexOf(a.task)<0; }).map(function(a){return a.task;});
    ok('auditory: every auditory task has a tile', noTile.length===0,
       noTile.length?('missing tiles: '+noTile.join(', ')):(AUD.length+' auditory tiles present'));

    // 2. Every auditory task has its screen element.
    function screenOf(a){ return a.screenId || (a.key+'Screen'); }
    var noScreen=AUD.filter(function(a){ return !$(screenOf(a)); }).map(function(a){return a.task;});
    ok('auditory: every task has a screen element', noScreen.length===0,
       noScreen.length?('no screen: '+noScreen.join(', ')):(AUD.length+' screens present'));

    // 3. makeTask-based tasks have the full scaffold contract (else they throw).
    var REQ=['Screen','ProgressBar','StimPhase','ResultsPhase','PracticeBanner'];
    var scaffoldMiss=[];
    AUD.filter(function(a){return a.mk;}).forEach(function(a){
      REQ.forEach(function(suf){ if(!$(a.key+suf)) scaffoldMiss.push(a.task+'.'+a.key+suf); });
    });
    ok('auditory: makeTask tasks have full scaffold (Screen/ProgressBar/StimPhase/ResultsPhase/PracticeBanner)',
       scaffoldMiss.length===0,
       scaffoldMiss.length?('MISSING: '+scaffoldMiss.join(', ')):('P3A/N100/P50/ASSR scaffold complete'));

    // 4. Critical display readouts each task writes to during a run exist.
    var readoutMiss=[];
    AUD.forEach(function(a){
      a.critical.forEach(function(id){ if(!$(id)) readoutMiss.push(a.task+'→#'+id); });
    });
    ok('auditory: trial/phase/metrics readouts present', readoutMiss.length===0,
       readoutMiss.length?('MISSING: '+readoutMiss.join(', ')):('all readout elements present'));

    // 5. Each auditory intro launches and shows, then cleans up — no throw, no
    //    AudioContext left open, returns home. (showIntro shows the intro only.)
    if(typeof window.showIntro!=='function' || typeof window.resetAll!=='function'){
      rec('auditory: showIntro + resetAll available', false, 'missing globals'); return;
    }
    var introEl=$('introScreen'), home=$('home');
    var threw=[], notShown=[], stuck=[];
    AUD.forEach(function(a){
      try{
        window.showIntro(a.task);
        if(!(introEl && introEl.style.display!=='none')) notShown.push(a.task);
      }catch(e){ threw.push(a.task+'('+(e&&e.message?e.message.slice(0,24):'err')+')'); }
      try{ window.resetAll(); }catch(_e){}
      // After cleanup the task screen should be hidden and home shown.
      var scr=$(screenOf(a));
      if(scr && scr.style.display!=='none') stuck.push(a.task+' screen');
      if(introEl && introEl.style.display!=='none') stuck.push(a.task+' intro');
    });
    ok('auditory: every auditory intro launches without throwing', threw.length===0,
       threw.length?('threw: '+threw.join(' | ')):(AUD.length+' intros launched'));
    ok('auditory: intro screen shown for auditory tasks', notShown.length===0,
       notShown.length?('no intro: '+notShown.join(', ')):('all showed intro'));
    ok('auditory: cleanup leaves no stuck screen', stuck.length===0,
       stuck.length?('stuck: '+stuck.join(', ')):('all returned home cleanly'));

    // 6. Audio contexts (if a task opened one) should be closed/cleaned after reset.
    // The task state objects (P300, MMN, CNV…) hold an audioCtx that resetAll closes.
    var openCtx=[];
    ['P300','MMN','CNV'].forEach(function(g){
      try{
        var st=window[g];
        if(st && st.audioCtx && st.audioCtx.state && st.audioCtx.state!=='closed') openCtx.push(g);
      }catch(e){}
    });
    rec('auditory: no task AudioContext left open after reset (info)', true,
        openCtx.length?('open: '+openCtx.join(', ')):'none open');

    // End at home.
    try{ window.resetAll(); }catch(_e){}
  }

  // ═══════════ SUITE 8 — VISUAL UI ═══════════
  // The visual ERP tasks present visual stimuli (faces, words, gratings, flashes,
  // checkerboards, lateralized arrays). Same UI-failure checks as the auditory
  // suite: screen exists, makeTask scaffold complete (PVEP), trial/phase/metrics
  // readouts present, intro launches + shows, cleanup returns home with no stuck
  // screen. No stimuli are presented (intros only).
  function pathVisual(){
    var VIS=[
      {task:'P100',  key:'p100',  mk:false, critical:['p100-trial','p100Metrics']},
      {task:'N170',  key:'n170',  mk:false, critical:['n170-trial','n170-phase','n170Metrics']},
      {task:'N200',  key:'n200',  mk:false, critical:['n200-trial','n200-phase','n200Metrics']},
      {task:'N300',  key:'n300',  mk:false, critical:['n300-trial','n300-phase','n300Metrics']},
      {task:'N400',  key:'n400',  mk:false, critical:['n400-trial','n400Metrics']},
      {task:'P600',  key:'p600',  mk:false, critical:['p600-trial','p600-phase','p600Metrics']},
      {task:'N2PC',  key:'n2pc',  mk:false, critical:['n2pc-trial','n2pc-phase','n2pcMetrics']},
      {task:'P1N1',  key:'p1n1',  mk:false, critical:['p1n1-trial','p1n1Metrics']},
      {task:'C1',    key:'c1',    mk:false, critical:['c1-trial','c1Metrics']},
      {task:'VPP',   key:'vpp',   mk:false, critical:['vpp-trial','vppMetrics']},
      {task:'LPC',   key:'lpc',   mk:false, critical:['lpc-trial','lpc-phase','lpcMetrics']},
      {task:'CDA',   key:'cda',   mk:false, critical:['cda-trial','cdaMetrics']},
      {task:'SSVEP', key:'ssvep', mk:false, critical:['ssvep-trial','ssvep-phase','ssvepMetrics']}
    ];
    var tiles=taskList();

    // 1. Every visual task has a tile.
    var noTile=VIS.filter(function(a){ return tiles.indexOf(a.task)<0; }).map(function(a){return a.task;});
    ok('visual: every visual task has a tile', noTile.length===0,
       noTile.length?('missing tiles: '+noTile.join(', ')):(VIS.length+' visual tiles present'));

    // 2. Every visual task has its screen element.
    function screenOf(a){ return a.screenId || (a.key+'Screen'); }
    var noScreen=VIS.filter(function(a){ return !$(screenOf(a)); }).map(function(a){return a.task;});
    ok('visual: every task has a screen element', noScreen.length===0,
       noScreen.length?('no screen: '+noScreen.join(', ')):(VIS.length+' screens present'));

    // 3. makeTask-based tasks have the full scaffold (PVEP).
    var REQ=['Screen','ProgressBar','StimPhase','ResultsPhase','PracticeBanner'];
    var scaffoldMiss=[];
    VIS.filter(function(a){return a.mk;}).forEach(function(a){
      REQ.forEach(function(suf){ if(!$(a.key+suf)) scaffoldMiss.push(a.task+'.'+a.key+suf); });
    });
    ok('visual: makeTask tasks have full scaffold (Screen/ProgressBar/StimPhase/ResultsPhase/PracticeBanner)',
       scaffoldMiss.length===0,
       scaffoldMiss.length?('MISSING: '+scaffoldMiss.join(', ')):((VIS.filter(function(a){return a.mk;}).length)+' makeTask visual scaffolds complete'));

    // 4. Critical readouts each task writes to during a run exist.
    var readoutMiss=[];
    VIS.forEach(function(a){
      a.critical.forEach(function(id){ if(!$(id)) readoutMiss.push(a.task+'→#'+id); });
    });
    ok('visual: trial/phase/metrics readouts present', readoutMiss.length===0,
       readoutMiss.length?('MISSING: '+readoutMiss.join(', ')):('all readout elements present'));

    // 5. Each visual intro launches + shows, then cleans up (no throw, no stuck screen).
    if(typeof window.showIntro!=='function' || typeof window.resetAll!=='function'){
      rec('visual: showIntro + resetAll available', false, 'missing globals'); return;
    }
    var introEl=$('introScreen'), home=$('home');
    var threw=[], notShown=[], stuck=[];
    VIS.forEach(function(a){
      try{
        window.showIntro(a.task);
        if(!(introEl && introEl.style.display!=='none')) notShown.push(a.task);
      }catch(e){ threw.push(a.task+'('+(e&&e.message?e.message.slice(0,24):'err')+')'); }
      try{ window.resetAll(); }catch(_e){}
      var scr=$(screenOf(a));
      if(scr && scr.style.display!=='none') stuck.push(a.task+' screen');
      if(introEl && introEl.style.display!=='none') stuck.push(a.task+' intro');
    });
    ok('visual: every visual intro launches without throwing', threw.length===0,
       threw.length?('threw: '+threw.join(' | ')):(VIS.length+' intros launched'));
    ok('visual: intro screen shown for visual tasks', notShown.length===0,
       notShown.length?('no intro: '+notShown.join(', ')):('all showed intro'));
    ok('visual: cleanup leaves no stuck screen', stuck.length===0,
       stuck.length?('stuck: '+stuck.join(', ')):('all returned home cleanly'));

    try{ window.resetAll(); }catch(_e){}
  }

  // ═══════════ SUITE 9 — REMAINING TASKS ═══════════
  // Covers every task NOT in the auditory or visual ERP suites — the behavioural
  // tasks (Flanker, Stroop, N-back, WCST, Posner…), clinical scales (PHQ9, GAD7,
  // MoCA, AUDIT…), the response/feedback ERPs (ERN, FRN, REWP, Pe, LRP, CNV,
  // MFN, ELAN, LAN…), and sensory screens (Snellen, Ishihara, Audiom…).
  //
  // Many of these share generic screens (selectTask → #taskscreen; RECALL →
  // #frScreen) rather than a dedicated <task>Screen, so this suite does NOT
  // assume a per-task screen. It verifies the UNIVERSAL contract that holds for
  // any task: the intro launches without throwing, an intro screen shows, and
  // after resetAll() NO task screen is left visible (checked globally).
  // ═══════════ SUITES 9-14 — TASK FAMILIES ═══════════
  // The non-ERP-specialized tasks, split into clinical/cognitive families so each
  // is its own filterable suite. Each runs the universal UI contract: intro
  // launches without throwing, an intro shows, nothing is left visible after
  // reset (checked globally), and dedicated-screen tasks have their screen
  // (tasks that share #taskscreen/#frScreen are exempt).
  var TASK_FAMILIES = {
    'Attention/Executive': ['ATTBLINK','CPT','DUALTASK','FLANKER','GNG','POSNER','SART','STOP','STROOP','EMOTSTROOP','TASKSWITCH','UFOV','SUBITIZE','DIGCAN','STAR','SYMSEARCH','DSC','TMT'],
    'Memory':              ['CVLT','NBACK','OSPAN','PAL','PASAT','PROSMEM','RAVLT','RECALL','SPATWM','SPR','SRCMEM','STB','VRT','MTS','DST','META'],
    'Language/Naming':     ['BNT','LEXDEC','PHONFLUE','PNT','SEMFLUENCY'],
    'Reasoning/Motor':     ['GABOR','JLO','MATRIX','MRT','TOL','WCST','FTT','SRTT','SPATIAL'],
    'Other ERP':           ['CNV','CNVW','CPS','ELAN','ERAN','ERN','FRN','LAN','LRP','MFN','N1P2','N2B','PD','PE','PMN','REWP','RON','SCP','THALPHA','BP','CSR'],
    'Clinical/Sensory':    ['ASRS','AUDIT','GAD7','HACHINSKI','IGT','PRL','DD','BART','KATZ','LAWTON','MOCA','PCL5','PHQ9','CDT','FER','RMET','TOJ','TBIS','AUDIOM','ISHIHARA','SNELLEN','SEASHORE']
  };
  // Tasks that reuse a shared screen (selectTask → #taskscreen; RECALL → #frScreen)
  // rather than a dedicated <task>Screen — exempt from the dedicated-screen check.
  var SHARED_SCREEN = {GNG:1,DSC:1,MRT:1,NBACK:1,PNT:1,SPATIAL:1,TMT:1,RECALL:1};

  // Factory: build a suite function for a named family's task list.
  function makeFamilySuite(famName, tasks){
    return function(){
      var present=tasks.filter(function(t){ return taskList().indexOf(t)>=0; });
      var absent=tasks.filter(function(t){ return taskList().indexOf(t)<0; });
      ok('fam['+famName+']: tiles present', absent.length===0,
         absent.length?('missing tiles: '+absent.join(', ')):(present.length+' tasks'));
      if(typeof window.showIntro!=='function' || typeof window.resetAll!=='function'){
        rec('fam['+famName+']: showIntro + resetAll available', false, 'missing globals'); return;
      }
      function allScreens(){ return Array.prototype.slice.call(document.querySelectorAll('[id$="Screen"], [id$="screen"]')); }
      var introEl=$('introScreen'), home=$('home');
      var threw=[], notShown=[], stuckAfter=[];
      present.forEach(function(t){
        try{
          window.showIntro(t);
          if(!(introEl && introEl.style.display!=='none')) notShown.push(t);
        }catch(e){ threw.push(t+'('+(e&&e.message?e.message.slice(0,22):'err')+')'); }
        try{ window.resetAll(); }catch(_e){}
        var vis=allScreens().filter(function(el){
          if(el===home || el===introEl) return false;
          return el.style.display && el.style.display!=='none';
        }).map(function(el){ return el.id; });
        if(vis.length) stuckAfter.push(t+'→['+vis.join(',')+']');
      });
      ok('fam['+famName+']: every intro launches without throwing', threw.length===0,
         threw.length?('threw: '+threw.slice(0,8).join(' | ')):(present.length+' intros launched'));
      ok('fam['+famName+']: intro screen shown for every task', notShown.length===0,
         notShown.length?('no intro: '+notShown.join(', ')):('all '+present.length+' showed intro'));
      ok('fam['+famName+']: no task screen left visible after reset', stuckAfter.length===0,
         stuckAfter.length?('STUCK: '+stuckAfter.slice(0,6).join(' | ')):('all cleaned up to home'));
      var dedMiss=[];
      present.forEach(function(t){
        if(SHARED_SCREEN[t]) return;
        var lc=t.toLowerCase(), lcnd=lc.replace(/-/g,'');
        if(!$(lc+'Screen') && !$(lcnd+'Screen')) dedMiss.push(t);
      });
      ok('fam['+famName+']: dedicated-screen tasks have their screen', dedMiss.length===0,
         dedMiss.length?('no dedicated screen: '+dedMiss.join(', ')):('all present (or shared)'));
      try{ window.resetAll(); }catch(_e){}
    };
  }

  // ═══════════ SUITE — EXIT PATHS (all paths safe) ═══════════
  // For every task: enter its screen, then exercise each exit route and confirm
  // it returns safely to home with no task screen left visible. The three real
  // exit paths in this app:
  //   • resetAll()        — the RESET / "↩ HOME" buttons (universal)
  //   • cognosAbort()     — the floating abort button (falls back to hideAll)
  //   • Escape key        — global keydown handler → cognosAbort (when abort
  //                         button is showing and focus isn't in a form field)
  // This is the "all paths are safe" guarantee: you can always get back to home
  // from any task, by any exit, with nothing stuck on screen.
  function pathExitPaths(){
    if(typeof window.showIntro!=='function'){ rec('exit: showIntro available', false, 'not global'); return; }
    var hasReset = typeof window.resetAll==='function';
    var hasAbort = typeof window.cognosAbort==='function';
    ok('exit: resetAll available', hasReset, hasReset?'ok':'not global');
    ok('exit: cognosAbort available', hasAbort, hasAbort?'ok':'not global');

    var home=$('home'), introEl=$('introScreen');
    function allScreens(){ return Array.prototype.slice.call(document.querySelectorAll('[id$="Screen"], [id$="screen"]')); }
    function homeShown(){ return home && home.style.display!=='none'; }
    function stuckScreens(){
      return allScreens().filter(function(el){
        if(el===home || el===introEl) return false;
        return el.style.display && el.style.display!=='none';
      }).map(function(el){ return el.id; });
    }
    function tryExit(task, exitFn){
      var prob='';
      try{ window.showIntro(task); }catch(e){ return 'enter-threw'; }
      try{ exitFn(); }catch(e){ return 'exit-threw('+(e&&e.message?e.message.slice(0,20):'')+')'; }
      if(!homeShown()) prob='home-not-shown';
      var stuck=stuckScreens();
      if(stuck.length) prob=(prob?prob+';':'')+'stuck['+stuck.slice(0,2).join(',')+']';
      return prob;
    }

    var tasks=taskList();

    // Path 1: resetAll on every task.
    if(hasReset){
      var f1=[];
      tasks.forEach(function(t){ var p=tryExit(t, function(){ window.resetAll(); }); if(p) f1.push(t+'→'+p); });
      ok('exit: resetAll() returns home safely (all tasks)', f1.length===0,
         f1.length?('FAILED: '+f1.slice(0,6).join(' | ')+(f1.length>6?(' …+'+(f1.length-6)):'')):(tasks.length+' tasks exit clean via resetAll'));
    }

    // Path 2: cognosAbort on every task.
    if(hasAbort){
      var f2=[];
      tasks.forEach(function(t){ var p=tryExit(t, function(){ window.cognosAbort(); }); if(p) f2.push(t+'→'+p); });
      ok('exit: cognosAbort() returns home safely (all tasks)', f2.length===0,
         f2.length?('FAILED: '+f2.slice(0,6).join(' | ')+(f2.length>6?(' …+'+(f2.length-6)):'')):(tasks.length+' tasks exit clean via abort'));
    }

    // Path 3: Escape key on a representative sample (ESC → cognosAbort).
    var sample=['P300','FLANKER','NBACK','MMN','WCST','PHQ9','TMT','POSNER','MOCA','GABOR']
                 .filter(function(t){ return tasks.indexOf(t)>=0; });
    var f3=[], escFired=0;
    sample.forEach(function(t){
      try{ window.showIntro(t); }catch(e){ f3.push(t+'→enter-threw'); return; }
      try{
        if(document.activeElement && document.activeElement.blur) document.activeElement.blur();
        // The ESC handler only fires when the abort button has the .show class
        // (set by the app's visibility logic on real navigation). Force it on so
        // the keydown genuinely exercises the ESC→cognosAbort path.
        var fab=document.getElementById('abortFab');
        if(fab) fab.classList.add('show');
        var ev=new KeyboardEvent('keydown',{key:'Escape',bubbles:true,cancelable:true});
        document.dispatchEvent(ev);
      }catch(e){ f3.push(t+'→esc-threw'); }
      if(!homeShown()){ if(hasReset) try{ window.resetAll(); }catch(_e){} }
      else escFired++;
      var stuck=stuckScreens(); if(stuck.length) f3.push(t+'→stuck['+stuck.slice(0,2).join(',')+']');
      try{ if(hasReset) window.resetAll(); }catch(_e){}
    });
    ok('exit: Escape key returns home (sample)', f3.length===0 && escFired===sample.length,
       f3.length?('FAILED: '+f3.join(' | ')):('ESC returned home on '+escFired+' of '+sample.length));

    // Passive ERP tasks (ORN/PMN/CPS) auto-advance on their own timer chains.
    // The screen hiding (checked above) does NOT prove the task stopped — the
    // bug we hit was the timer chain + .active flag SURVIVING abort, so the task
    // kept advancing and playing audio after exit. This check launches each
    // passive task, aborts via resetAll, and asserts it is no longer active.
    // (window._ORN/_PMN/_CPS are top-level vars, so readable here.)
    var passiveSpecs=[
      { code:'ORN', glob:'_ORN' },
      { code:'PMN', glob:'_PMN' },
      { code:'CPS', glob:'_CPS' }
    ];
    var passiveFails=[];
    passiveSpecs.forEach(function(p){
      try{
        if(typeof window.showIntro==='function') window.showIntro(p.code);
        // launch the main run (dispatch maps currentIntroTask→startXXX)
        if(typeof window.startMain==='function'){ try{ window.startMain(); }catch(_e){} }
        if(hasReset) window.resetAll();          // simulate abort
        var obj=window[p.glob];
        // A started passive task leaves a state object; after abort .active must
        // be false. If the object is still null it never started (counts as ok).
        if(obj && obj.active===true) passiveFails.push(p.code+' still active after abort');
        // also: no pending timers left in its queue
        if(obj && obj._timers && obj._timers.length>0) passiveFails.push(p.code+' has '+obj._timers.length+' timers after abort');
      }catch(e){ passiveFails.push(p.code+' threw: '+(e&&e.message||e)); }
    });
    try{ if(hasReset) window.resetAll(); }catch(_e){}
    ok('exit: passive tasks (ORN/PMN/CPS) stop on abort (no surviving timers)',
       passiveFails.length===0,
       passiveFails.length?('FAILED: '+passiveFails.join(' | ')):'ORN/PMN/CPS all inactive with no timers after abort');

    // Final safety: end at home, nothing stuck.
    try{ if(hasReset) window.resetAll(); }catch(_e){}
    ok('exit: ends at home with no stuck screen', homeShown() && stuckScreens().length===0,
       homeShown()?('home shown, stuck='+stuckScreens().length):'home not shown');
  }

  // ═══════════ SUITE — INPUT MODALITIES ═══════════
  // Verify the four input modes the app supports — keyboard, mouse, voice, and
  // speech (TTS) — are wired and switchable without throwing. Voice/speech also
  // depend on browser APIs (SpeechRecognition / speechSynthesis) that aren't
  // present everywhere; their availability is REPORTED (a missing API is a
  // browser limitation, not a Cognos bug), while the mode-switch wiring itself
  // is asserted. setInputMode is restored to its original mode afterward.
  function pathInput(){
    // Keyboard and mouse only. Voice/mic and speech (TTS) are intentionally NOT
    // tested here: they depend on a real microphone, browser speech APIs, and a
    // human speaking — none of which an automated structural test can exercise
    // honestly, so asserting them would imply a guarantee the test can't make.
    var hasSet = typeof window.setInputMode==='function';
    ok('input: setInputMode available', hasSet, hasSet?'ok':'not global');
    var btns={keyboard:$('im-keyboard'), mouse:$('im-mouse')};
    var missingBtns=Object.keys(btns).filter(function(k){ return !btns[k]; });
    ok('input: keyboard + mouse toggle buttons present', missingBtns.length===0,
       missingBtns.length?('missing: '+missingBtns.join(', ')):('both mode buttons present'));

    if(hasSet){
      var orig = (typeof window.inputMode!=='undefined') ? window.inputMode : 'keyboard';
      // Keyboard.
      var kbThrew=false; try{ window.setInputMode('keyboard'); }catch(e){ kbThrew=true; }
      var kbActive = btns.keyboard && btns.keyboard.classList.contains('active');
      ok('input: keyboard mode switches + marks active', !kbThrew && kbActive,
         kbThrew?'threw':('im-keyboard active='+kbActive));
      // Mouse — also shows the mouse indicator.
      var msThrew=false; try{ window.setInputMode('mouse'); }catch(e){ msThrew=true; }
      var msActive = btns.mouse && btns.mouse.classList.contains('active');
      var ind=$('mouseIndicator');
      var indShown = ind && ind.style.display!=='none';
      ok('input: mouse mode switches + shows indicator', !msThrew && msActive && indShown,
         msThrew?'threw':('im-mouse active='+msActive+' indicator='+indShown));
      // Key hint updates per mode (keyboard vs mouse differ).
      try{ window.setInputMode('keyboard'); }catch(e){}
      var hintKb = ($('keyHint')||{}).textContent || '';
      try{ window.setInputMode('mouse'); }catch(e){}
      var hintMs = ($('keyHint')||{}).textContent || '';
      ok('input: key hint updates with mode', hintKb!==hintMs && hintKb.length>0 && hintMs.length>0,
         'kb/mouse hints differ='+(hintKb!==hintMs));
      // Restore the original input mode.
      try{ window.setInputMode(orig==='voice'?'keyboard':orig); }catch(e){}
    }
  }

  // ═══════════ SUITE — DANGLING HANDLERS ═══════════
  // Every inline onclick="fn(...)" in the page references a function that must
  // exist, or the button silently throws when clicked. This scans all onclick
  // attributes, resolves each function name (bare global or dotted path like
  // CustomAudio.clear), and asserts it's callable. Catches "button does nothing"
  // bugs from typos, renames, or removed functions across the whole UI.
  function pathHandlers(){
    var els=Array.prototype.slice.call(document.querySelectorAll('[onclick]'));
    ok('handlers: elements with onclick found', els.length>0, els.length+' onclick handlers');
    var names={};
    els.forEach(function(el){
      var oc=el.getAttribute('onclick')||'';
      // Skip inline IIFEs — they contain local variables (e.g. a file input `i`)
      // whose method calls (i.click()) are NOT global functions and would
      // false-flag. Such handlers are self-contained, not global dispatches.
      if(/\(\s*function\s*\(/.test(oc) || /=>/.test(oc)) return;
      var re=/([a-zA-Z_$][\w$]*(?:\.[a-zA-Z_$][\w$]*)*)\s*\(/g, m;
      while((m=re.exec(oc))){
        var n=m[1];
        if(/^(if|for|while|return|function|typeof|new|void|else|switch|catch|do)$/.test(n)) continue;
        names[n]=true;
      }
    });
    var all=Object.keys(names).sort();
    function resolves(name){
      var parts=name.split('.'), ctx=window;
      for(var i=0;i<parts.length;i++){ if(ctx==null) return false; ctx=ctx[parts[i]]; }
      return typeof ctx==='function';
    }
    // Some handlers call functions that are assigned lazily (window.X = function
    // …) only once their task runs — they legitimately don't exist at rest. We
    // verify those references exist in source as an assignment rather than
    // requiring them to be live now. Probe a known lazy set; report separately.
    var raw=document.documentElement.innerHTML;
    function definedSomewhere(name){
      var bare=name.split('.').pop();
      // function NAME(  |  NAME = function  |  window.NAME =  |  NAME:function
      return new RegExp('(function\\s+'+bare+'\\b|\\b'+bare+'\\s*=\\s*function|window\\.'+bare+'\\s*=|\\b'+bare+'\\s*:\\s*function)').test(raw);
    }
    var missing=all.filter(function(n){ return !resolves(n); });
    var trulyMissing=missing.filter(function(n){ return !definedSomewhere(n); });
    var lazy=missing.filter(function(n){ return definedSomewhere(n); });
    ok('handlers: every onclick function resolves (live or lazily-defined)', trulyMissing.length===0,
       trulyMissing.length?('DANGLING: '+trulyMissing.slice(0,10).join(', ')):(all.length+' handlers OK ('+lazy.length+' lazily-assigned at task time)'));
  }

  // ═══════════ SUITE — hideAll DRIFT ═══════════
  // hideAll() hides a hardcoded list of screen IDs. If a task screen exists in
  // the DOM but isn't in that list, it won't be hidden on navigation and can
  // stack behind the next screen (a latent stuck-screen bug). This is behavioural
  // and self-maintaining: it calls hideAll() and asserts EVERY .task-screen
  // element actually ends up hidden — no list parsing needed.
  function pathHideAllDrift(){
    if(typeof window.hideAll!=='function'){ rec('drift: hideAll available', false, 'not global'); return; }
    rec('drift: hideAll available', true, 'ok');
    var taskScreens=Array.prototype.slice.call(document.querySelectorAll('.task-screen'));
    ok('drift: task-screen elements found', taskScreens.length>0, taskScreens.length+' .task-screen elements');
    // Make every task screen visible, then call hideAll and confirm all hidden.
    var prev=taskScreens.map(function(el){ return el.style.display; });
    taskScreens.forEach(function(el){ el.style.display='flex'; });
    try{ window.hideAll(); }catch(e){ rec('drift: hideAll ran', false, 'threw: '+e); }
    var notHidden=taskScreens.filter(function(el){ return el.style.display!=='none'; })
                             .map(function(el){ return el.id||'(no id)'; });
    ok('drift: hideAll() hides every task-screen', notHidden.length===0,
       notHidden.length?('NOT HIDDEN (missing from hideAll list): '+notHidden.join(', ')):(taskScreens.length+' task screens all hidden'));
    // Restore (then return home for safety).
    taskScreens.forEach(function(el,i){ el.style.display=prev[i]; });
    try{ window.hideAll(); var h=$('home'); if(h) h.style.display='flex'; }catch(_e){}
  }

  // ═══════════ SUITE — TIMER LEAKS ═══════════
  // Tasks schedule many setTimeout/setInterval calls. If exiting a task doesn't
  // clear them, a stray timer can fire later and mutate the UI or play audio on
  // the home screen. This instruments setTimeout/setInterval to count live
  // timers, launches each task intro, calls resetAll, and asserts the live-timer
  // count returns to its baseline (no leak). Instrumentation is fully restored.
  function pathTimerLeaks(){
    if(typeof window.showIntro!=='function' || typeof window.resetAll!=='function'){
      rec('timers: showIntro + resetAll available', false, 'missing globals'); return;
    }
    // IMPORTANT honesty note: one-shot setTimeouts can't be leak-checked from a
    // synchronous test — their cleanup happens when the callback fires, which is
    // AFTER this synchronous loop finishes, so counting "pending one-shots" mid-
    // loop just measures not-yet-fired timers, not leaks. The genuinely
    // dangerous kind is setINTERVAL: it repeats forever if not cleared. So this
    // suite tracks intervals specifically — those are observable and meaningful —
    // and reports one-shot scheduling as info only.
    var origST=window.setTimeout, origSI=window.setInterval, origCT=window.clearTimeout, origCI=window.clearInterval;
    var liveIntervals={};   // interval id → true until cleared
    var oneShotCount=0;
    function wrapSet(orig, isInterval){
      return function(fn, ms){
        var args=Array.prototype.slice.call(arguments,2);
        var pid;
        var wrapped=function(){ try{ return fn.apply(this,args); }catch(e){} };
        pid=orig(wrapped, ms);
        if(isInterval) liveIntervals[pid]=true; else oneShotCount++;
        return pid;
      };
    }
    function wrapClearInterval(orig){ return function(id){ delete liveIntervals[id]; return orig(id); }; }
    var leaked=[];
    try{
      window.setTimeout=wrapSet(origST,false);
      window.setInterval=wrapSet(origSI,true);
      window.clearInterval=wrapClearInterval(origCI);

      var tasks=taskList();
      try{ if(window.resetAll) window.resetAll(); }catch(_e){}
      var baseIntervals=Object.keys(liveIntervals).length;
      tasks.forEach(function(t){
        try{ window.showIntro(t); }catch(e){}
        try{ window.resetAll(); }catch(e){}
      });
      try{ if(window._stopIntroAnim) window._stopIntroAnim(); }catch(_e){}
      var netIntervals=Object.keys(liveIntervals).length - baseIntervals;
      // ANY interval surviving every showIntro→resetAll cycle is a real leak —
      // intervals repeat forever, so even one is a problem.
      if(netIntervals > 0) leaked.push(netIntervals+' setInterval(s) survived resetAll across '+tasks.length+' tasks');
      rec('timers: one-shot setTimeout scheduling (info)', true,
          oneShotCount+' one-shots scheduled across '+tasks.length+' intros (self-clear when they fire; not leak-checkable synchronously)');
    } finally {
      window.setTimeout=origST; window.setInterval=origSI;
      window.clearTimeout=origCT; window.clearInterval=origCI;
    }
    ok('timers: no setInterval leaks past resetAll', leaked.length===0,
       leaked.length?('LEAK: '+leaked.join('; ')):('no repeating intervals survive task exit'));
    // Final cleanup.
    try{ window.resetAll(); }catch(_e){}
  }

  // ═══════════ SUITE — LAYOUT (rendered geometry) ═══════════
  // The other suites check structure and behaviour; this one checks how screens
  // actually RENDER. For each task it shows the screen and measures real
  // bounding boxes to catch three visible failure modes:
  //   1. horizontal overflow — an element spills past the viewport right edge
  //      (the "panel cut off on the right" bug)
  //   2. practice-banner overlap — the PRACTICE MODE badge's box intersects a
  //      content element's box (the "badge on top of the text" bug)
  //   3. off-centre content — the main content block sits far from horizontal
  //      centre (the "jammed to the left" bug)
  // Geometry needs the screen visible, so this launches each task via showIntro
  // → start path is NOT triggered (intro only); we measure the intro/visible
  // screen. Tasks are restored to home after.
  function pathLayout(){
    if(typeof window.showIntro!=='function' || typeof window.resetAll!=='function'){
      rec('layout: showIntro + resetAll available', false, 'missing globals'); return;
    }
    var vw = window.innerWidth || document.documentElement.clientWidth;
    var TOL = 4; // px tolerance for sub-pixel rounding

    // Visible, laid-out elements inside a root (skip display:none / zero-box).
    function visibleBoxes(root){
      return Array.prototype.slice.call(root.querySelectorAll('*')).filter(function(el){
        var cs=getComputedStyle(el);
        if(cs.display==='none'||cs.visibility==='hidden') return false;
        var r=el.getBoundingClientRect();
        return r.width>0 && r.height>0;
      });
    }
    function overlaps(a,b){
      return !(a.right<=b.left || a.left>=b.right || a.bottom<=b.top || a.top>=b.bottom);
    }

    var tasks=taskList();
    var overflow=[], bannerOverlap=[], offcentre=[];

    tasks.forEach(function(t){
      try{ window.showIntro(t); }catch(e){ return; }
      // Find the visible task/intro screen container.
      var screen=document.querySelector('.task-screen[style*="flex"], #introScreen[style*="flex"], #introScreen[style*="block"]');
      if(!screen){
        // fall back: any visible .task-screen
        screen=Array.prototype.slice.call(document.querySelectorAll('.task-screen, #introScreen'))
          .filter(function(s){ return getComputedStyle(s).display!=='none'; })[0];
      }
      if(!screen){ try{window.resetAll();}catch(_e){} return; }

      var boxes=visibleBoxes(screen);
      // 1. horizontal overflow past the viewport
      var spill=boxes.filter(function(el){
        var r=el.getBoundingClientRect();
        return r.right > vw + TOL || r.left < -TOL;
      });
      if(spill.length){
        var worst=spill.map(function(el){return Math.round(el.getBoundingClientRect().right);}).sort(function(a,b){return b-a;})[0];
        overflow.push(t+'(→'+worst+'px > '+vw+')');
      }

      // 2. practice-banner overlap with content
      var banner=screen.querySelector('.practice-banner');
      if(banner && getComputedStyle(banner).display!=='none'){
        var br=banner.getBoundingClientRect();
        var hit=boxes.filter(function(el){
          if(el===banner || banner.contains(el) || el.contains(banner)) return false;
          // only count sizeable content elements, not tiny inline spans
          var r=el.getBoundingClientRect();
          if(r.width<40||r.height<14) return false;
          return overlaps(br, r);
        });
        if(hit.length) bannerOverlap.push(t);
      }

      // 3. off-centre: compare screen content centre to viewport centre.
      // Use the screen's own box (it's width:100%), then check its largest direct
      // child block is roughly centred within it.
      var kids=Array.prototype.slice.call(screen.children).filter(function(el){
        var cs=getComputedStyle(el); if(cs.display==='none') return false;
        var r=el.getBoundingClientRect(); return r.width>0&&r.height>0;
      });
      if(kids.length){
        // widest visible child
        var widest=kids.sort(function(a,b){return b.getBoundingClientRect().width-a.getBoundingClientRect().width;})[0];
        var r=widest.getBoundingClientRect();
        var childCentre=(r.left+r.right)/2;
        // skip full-width children (legends/banners that legitimately span)
        if(r.width < vw*0.92){
          if(Math.abs(childCentre - vw/2) > vw*0.18) offcentre.push(t+'(c='+Math.round(childCentre)+' vs '+Math.round(vw/2)+')');
        }
      }

      try{ window.resetAll(); }catch(_e){}
    });

    ok('layout: no element overflows the viewport width', overflow.length===0,
       overflow.length?('OVERFLOW: '+overflow.slice(0,8).join(', ')+(overflow.length>8?(' …+'+(overflow.length-8)):'')):(tasks.length+' screens fit the viewport'));
    ok('layout: PRACTICE MODE badge never overlaps content', bannerOverlap.length===0,
       bannerOverlap.length?('BANNER OVERLAP: '+bannerOverlap.slice(0,12).join(', ')+(bannerOverlap.length>12?(' …+'+(bannerOverlap.length-12)):'')):('no banner/content collisions'));
    ok('layout: content is horizontally centred', offcentre.length===0,
       offcentre.length?('OFF-CENTRE: '+offcentre.slice(0,8).join(', ')+(offcentre.length>8?(' …+'+(offcentre.length-8)):'')):(tasks.length+' screens centred'));

    // ── Static defence: layout classes used in markup but with NO CSS rule at
    // all fall back to unstyled blocks (this is the root cause of the P300/CSR
    // arena bugs). Scan the page's own stylesheets for defined selectors and
    // flag any layout-bearing class that's used but never styled. This catches
    // the bug class WITHOUT needing to start each task. ──
    try{
      var definedSel = {};
      Array.prototype.slice.call(document.styleSheets).forEach(function(ss){
        var rules; try{ rules=ss.cssRules; }catch(e){ return; }
        if(!rules) return;
        Array.prototype.slice.call(rules).forEach(function(r){
          if(r.selectorText){
            (r.selectorText.match(/\.[a-zA-Z][\w-]*/g)||[]).forEach(function(s){ definedSel[s.slice(1)]=true; });
          }
        });
      });
      var usedClasses={};
      Array.prototype.slice.call(document.querySelectorAll('[class]')).forEach(function(el){
        el.className.toString().split(/\s+/).forEach(function(c){ if(c) usedClasses[c]=true; });
      });
      var layoutKW=['arena','freq','hint','stim','config','circle','overlay','wrap','fields','board','panel','grid','readout'];
      var unstyled=Object.keys(usedClasses).filter(function(c){
        if(definedSel[c]) return false;
        if(c.indexOf('cognos')===0) return false; // harness's own classes
        var lc=c.toLowerCase();
        return layoutKW.some(function(k){ return lc.indexOf(k)>=0; });
      });
      ok('layout: no unstyled layout classes (arena/wrap/overlay/…)', unstyled.length===0,
         unstyled.length?('UNSTYLED (fall back to plain block): '+unstyled.join(', ')):('all layout classes have CSS rules'));
    }catch(e){
      rec('layout: unstyled-class scan', true, 'could not read stylesheets (CORS?) — skipped: '+(e&&e.message||e));
    }

    try{ window.resetAll(); }catch(_e){}
  }

  // ═══════════ SUITE — PHOTIC TRIGGER FLASH ═══════════
  // The photocell trigger square flashes white per stimulus for EEG sync. Two
  // regressions we want to guard against:
  //   • it must be visible ABOVE task screens (was occluded at z-index:10)
  //   • a flash must NOT survive or fire after abort/reset (queued rAF + timer
  //     both cancelled by stopTriggerFlash, called from resetAll)
  function pathPhotic(){
    var bar=document.getElementById('trigger-bar');
    ok('photic: trigger bar present', !!bar, bar?'ok':'#trigger-bar missing');
    if(!bar) return;
    // 1. z-index high enough to sit above task content.
    var z=parseInt(getComputedStyle(bar).zIndex,10);
    ok('photic: trigger bar renders above task screens', !isNaN(z) && z>=100,
       'z-index='+(isNaN(z)?'auto':z)+' (needs ≥100 to clear task screens)');
    // 2. flash cleanup on reset/abort.
    if(typeof window.triggerFlash==='function' && typeof window.stopTriggerFlash==='function'){
      var T=window.TRIG;
      var hadEnabled = T ? T.enabled : null;
      try{
        if(T) T.enabled=true;
        window.triggerFlash();              // queue a flash
        window.stopTriggerFlash();          // simulate abort cleanup
        var litAfter = bar.classList.contains('flash');
        var pendRaf = T ? !!T._raf : false;
        var pendTid = T ? !!T._tid : false;
        ok('photic: stopTriggerFlash clears flash + pending timers',
           !litAfter && !pendRaf && !pendTid,
           'lit='+litAfter+' raf='+pendRaf+' tid='+pendTid);
      } finally {
        if(T && hadEnabled!==null) T.enabled=hadEnabled;
        try{ bar.classList.remove('flash'); }catch(_e){}
      }
      // 3. resetAll also stops the flash (the real abort path).
      try{
        if(T) T.enabled=true;
        window.triggerFlash();
        window.resetAll();
        ok('photic: resetAll stops the flash', !bar.classList.contains('flash') && !(T&&T._raf),
           'lit='+bar.classList.contains('flash'));
      }catch(e){ rec('photic: resetAll stops the flash', false, 'threw: '+(e&&e.message||e)); }
      finally { if(T && hadEnabled!==null) T.enabled=hadEnabled; }
    } else {
      rec('photic: flash functions available', false, 'triggerFlash/stopTriggerFlash not global');
    }
    try{ window.resetAll(); }catch(_e){}
  }

  // ═══════════ SUITE — PARADIGM INTEGRITY ═══════════
  // Guards the paradigm-correctness bugs found this session:
  //   • passive ERP tasks must auto-advance (no keypress-gated stall) and must
  //     not be left waiting for a response that their intro says not to give
  //   • passive tasks must not display a cue that reveals the deviant condition
  //     (e.g. PMN's old phonological-mismatch-context label)
  // These are checked by SOURCE INSPECTION of the page (no task is started, so
  // no audio fires): we read the document HTML and look for the bug signatures.
  function pathParadigmIntegrity(){
    var src=document.documentElement.innerHTML;

    // 1. The PMN condition-revealing cue must be gone. The needle is assembled
    // from fragments so this check's OWN source doesn't contain the literal
    // (it scans the whole document, and would otherwise self-match).
    var needle='[phonological '+'mismatch '+'context]';
    var hits=src.split(needle).length-1;
    var pmnCueGone = hits===0;
    ok('paradigm: PMN does not reveal the deviant condition', pmnCueGone,
       pmnCueGone?'no condition cue in source':('FOUND the PMN condition cue '+hits+'x — it reveals deviants'));

    // 2. Passive tasks should show a passive instruction, not an active key prompt.
    // Each known-passive task's running hint must NOT demand Y/N/F/J input.
    // Battery-wide (not a hardcoded 3-task list — that's why SSVEP slipped
    // through): a task screen must not pair an unambiguous PASSIVE-VIEWING
    // instruction with an active key prompt (F/J/Y/N/SPACE = …). The bug seen
    // on SSVEP was "Fixate… Your EEG will show peaks at exactly these
    // frequencies" sitting beside "F = LEFT · J = RIGHT" — a viewing task with
    // a response prompt. We match only passive-viewing phrases that a genuine
    // choice/response task never uses ("your EEG will show", "no response
    // needed", "just observe", "passively view", "simply fixate"), so the eight
    // legitimate F/J choice-tasks (LEXDEC, VPP, TOJ, FRN, ERAN, LAN, EMOTSTROOP,
    // TASKSWITCH) are NOT false-flagged.
    var allScreens=document.querySelectorAll('.task-screen[id]');
    var passiveViewing=/your eeg will|will show peaks|no response is (needed|required)|no response needed|just observe|just watch passively|passively (watch|view|observe)|simply fixate|relax and (watch|view)/i;
    var activeKeyHint=/\b([FJYN]|SPACE)\s*=/;
    var contradictions=[];
    Array.prototype.forEach.call(allScreens, function(scr){
      var hintEl=scr.querySelector('.key-hint');
      var hintTxt=hintEl?(hintEl.textContent||''):'';
      if(!hintTxt || !activeKeyHint.test(hintTxt)) return;
      var bodyTxt=(scr.textContent||'');
      if(passiveViewing.test(bodyTxt)){
        contradictions.push((scr.id||'').replace(/Screen$/,'').toUpperCase()+': passive-viewing text + key prompt "'+hintTxt.trim().slice(0,30)+'"');
      }
    });
    ok('paradigm: no passive-viewing instruction paired with an active key prompt', contradictions.length===0,
       contradictions.length?('CONTRADICTION: '+contradictions.slice(0,8).join(' | ')):(allScreens.length+' screens coherent — no viewing-only task shows a response prompt'));

    // 2b. RESPONSE-INSTRUCTION COVERAGE. Recurring bug class (hit on Pd, N2b,
    // ERAN, …): a task's on-screen key-hint correctly names the response keys,
    // but the INTRO paradigm rules — the screen the participant actually reads
    // first — describe only the science and never say how to respond. For every
    // task whose running screen shows an active key prompt (F/J/Y/N/SPACE = …),
    // its intro entry's human-readable text (body + rule descriptions, plus any
    // single-letter key: values which ARE the response) must mention a response.
    // We read only readable text, NOT the JSON `key:` property names (which
    // always contain the word "key" and would mask the bug).
    function _introReadable(entry){
      var t='';
      var bodyM=entry.match(/body:\s*'([^']*)'/)||entry.match(/body:\s*"([^"]*)"/); if(bodyM) t+=' '+(bodyM[1]||'');
      var dRe=/desc:\s*'([^']*)'|desc:\s*"([^"]*)"/g, d; while((d=dRe.exec(entry))) t+=' '+(d[1]||d[2]||'');
      var kRe=/key:\s*'([^']*)'|key:\s*"([^"]*)"/g, kk; while((kk=kRe.exec(entry))){ var v=(kk[1]||kk[2]||'').trim(); if(/^(F|J|Y|N|SPACE)([\s\/·]+(F|J|Y|N|SPACE))*$/.test(v)) t+=' '+v.replace(/[\s\/·]+/g,'=')+'='; }
      return t;
    }
    var respMention=/\bpress\b|\brespond|\breport\b|\banswer\b|\bindicate\b|\bbutton\b|Y\s*=|N\s*=|F\s*=|J\s*=|SPACE|\bchoose\b|\bjudge\b|\bdecide\b|withhold|\btap\b|spacebar|left or right|which side/i;
    var missingResp=[];
    Array.prototype.forEach.call(allScreens, function(scr){
      var hintEl=scr.querySelector('.key-hint');
      var hintTxt=hintEl?(hintEl.textContent||''):'';
      if(!hintTxt || !activeKeyHint.test(hintTxt)) return;        // only response tasks
      var code=(scr.id||'').replace(/Screen$/,'').toUpperCase();
      // Pull the INTRO paradigm entry for this code from source.
      var pe=new RegExp(code+":\\{name:[\\s\\S]*?rules:\\[[\\s\\S]*?\\]\\}");
      var pm=src.match(pe); if(!pm) return;                       // no intro entry → skip
      if(!respMention.test(_introReadable(pm[0]))) missingResp.push(code);
    });
    ok('paradigm: every keyboard task intro explains how to respond', missingResp.length===0,
       missingResp.length?('intro never names the response ('+missingResp.length+'): '+missingResp.slice(0,12).join(', ')):('all response-task intros name keys/response'));

    // 3. Passive task run-loops must not gate advancement on a keydown listener
    // (the stall bug). We can't read function bodies from the DOM, but we CAN
    // verify behaviourally that starting one auto-advances. That needs audio, so
    // instead we assert the screens carry the passive-advance instruction text
    // we set ("advance automatically"), which only the fixed (passive) code path
    // renders. This is an honest proxy: it confirms the passive UI is in place.
    var autoAdvanceCount=(src.match(/advance(s)? automatically/g)||[]).length;
    ok('paradigm: passive tasks declare auto-advance', autoAdvanceCount>=3,
       autoAdvanceCount+' passive screens state stimuli advance automatically (expect ≥3: ORN/PMN/CPS)');
  }

  // ═══════════ SUITE — PROGRESS-BAR CONFOUND ═══════════
  // Battery-wide policy: NO task shows an on-screen trial progress bar. An
  // elapsed-time / trials-remaining cue is a confound — it drives anticipatory
  // responses and contaminates slow pre-movement and pre-attentive potentials.
  // Implemented via CSS (.progress-bar-wrap{display:none}) plus a runtime
  // belt-and-suspenders pass. We assert every progress-bar wrapper is hidden.
  function pathProgressConfound(){
    var wraps=document.querySelectorAll('.progress-bar-wrap');
    ok('progress: progress-bar wrappers found', wraps.length>0, wraps.length+' .progress-bar-wrap elements');
    ok('progress: suppression function present', typeof applyProgressConfoundSuppression==='function',
       typeof applyProgressConfoundSuppression==='function'?'ok':'applyProgressConfoundSuppression missing');
    // re-apply in case a prior test toggled inline styles
    try{ applyProgressConfoundSuppression(); }catch(_){}
    var visible=[];
    for(var i=0;i<wraps.length;i++){
      var disp=getComputedStyle(wraps[i]).display;
      if(disp!=='none'){
        var inner=wraps[i].querySelector('.progress-bar');
        visible.push((inner&&inner.id?inner.id:'#'+i)+'('+disp+')');
      }
    }
    ok('progress: every task progress bar hidden (battery-wide)', visible.length===0,
       visible.length?('VISIBLE: '+visible.slice(0,8).join(', ')+(visible.length>8?(' +'+(visible.length-8)+' more'):'')):(wraps.length+' progress bars hidden across all tasks'));
  }

  // ── suite registry ──
  // Practice blocks must stay SHORT — a familiarization run, not a second main
  // run. This scans the source for every practice/main count pair (both
  // taskTrials('CODE',P,M,...) and bare isPractice?P:M) and flags any practice
  // count above the cap or larger than its own main count. Guards the whole
  // class instead of fixing tasks one by one.
  function pathPracticeCounts(){
    var CAP=10;  // practice familiarization ceiling
    // Inline practice counts that are intentionally longer (continuous/sequential
    // paradigms needing more items to convey the procedure). Keyed by the count.
    var ALLOW_INLINE={ 12:'PASAT serial addition', 20:'IGT card selections' };
    var src=document.documentElement.innerHTML;
    var viol=[], pairs=0;
    // Form 1: taskTrials('CODE', P, M, isPractice)
    var re1=/taskTrials\('([A-Z0-9_-]+)'\s*,\s*(\d+)\s*,\s*(\d+)\s*,/g, m;
    while((m=re1.exec(src))){
      pairs++;
      var code=m[1], P=+m[2], M=+m[3];
      if(P>CAP) viol.push(code+' practice='+P+' (>'+CAP+')');
      else if(P>M) viol.push(code+' practice='+P+' > main='+M);
    }
    // Form 2: bare isPractice?P:M (tasks not yet routed through taskTrials).
    // Restrict to plausible TRIAL counts: both sides small and main>=practice.
    // This excludes millisecond timing ternaries (e.g. isPractice?3000:6000).
    var re2=/isPractice\s*\?\s*(\d+)\s*:\s*(\d+)/g;
    while((m=re2.exec(src))){
      var P2=+m[1], M2=+m[2];
      if(M2>=4 && M2<=300 && P2<=300){
        pairs++;
        if(P2>M2){ viol.push('(inline) practice='+P2+' > main='+M2); continue; }
        if(P2>CAP && !ALLOW_INLINE[P2]) viol.push('(inline) practice='+P2+' (>'+CAP+')');
      }
    }
    // Form 3: practice gating via list slicing — `if(isPractice)items=items.slice(0,N)`
    // or `items.slice(0,taskTrials('CODE',P,...))`. The literal-N form bypassed
    // earlier checks (PMN/LAN/CPS were stuck at 16), so scan it explicitly.
    var re3=/isPractice\s*\)\s*[A-Za-z_$][\w$]*\s*=\s*[A-Za-z_$][\w$.]*\.slice\(\s*0\s*,\s*(\d+)\s*\)/g;
    while((m=re3.exec(src))){
      pairs++;
      var P3=+m[1];
      if(P3>CAP) viol.push('(slice) practice='+P3+' (>'+CAP+')');
    }
    rec('practice: count expressions scanned (info)', true, pairs+' practice/main pairs found');
    ok('practice: no block exceeds cap ('+CAP+') or its own main count', viol.length===0,
       viol.length?('VIOLATIONS: '+viol.slice(0,12).join('; ')+(viol.length>12?(' …+'+(viol.length-12)+' more'):'')):'all practice blocks short');
  }

  // The dual-monitor subject window must show STIMULI ONLY — never results,
  // scores, or feedback. We build a synthetic .main-style clone containing a
  // results phase + metrics + feedback, run the real strip helper on it, and
  // assert every results/metrics/feedback node is gone and a hold screen is
  // added. This protects participant blinding without opening a real popup.
  function pathSubjectView(){
    ok('subject: strip helper present', typeof window.cognosStripResultsForSubject==='function',
       typeof window.cognosStripResultsForSubject==='function'?'ok':'not global');
    if(typeof window.cognosStripResultsForSubject!=='function') return;
    var clone=document.createElement('div');
    clone.innerHTML =
      '<div id="mmnStimPhase" style="display:flex">stimulus</div>'+
      '<div id="mmnResultsPhase" style="display:block">'+
        '<div class="vrt-results-wrap"><div class="vrt-metrics" id="mmnMetrics">SCORE 92%</div></div>'+
      '</div>'+
      '<div id="practiceComplete" style="display:flex"><div id="pcStats">HIT RATE 88%</div></div>'+
      '<div class="feedback">Correct!</div>'+
      '<div id="someResultsPhase" style="display:block"><div id="someMetrics">d\' 2.1</div></div>';
    var stripped=window.cognosStripResultsForSubject(clone, document);
    var leftoverResults = clone.querySelectorAll('[id$="ResultsPhase"], #practiceComplete, .vrt-metrics, [id$="Metrics"], .feedback, #pcStats').length;
    var stimKept = !!clone.querySelector('#mmnStimPhase');
    var holdShown = !!clone.querySelector('.cognos-subject-hold');
    // No score text should survive anywhere in the subject clone.
    var noScoreText = !/SCORE|HIT RATE|d'|Correct/.test(clone.textContent||'');
    ok('subject: all results/metrics/feedback removed from mirror', leftoverResults===0,
       leftoverResults===0?'0 results nodes remain':(leftoverResults+' results nodes survived'));
    ok('subject: stimulus content preserved', stimKept, stimKept?'stim phase kept':'stim phase wrongly removed');
    ok('subject: no score/feedback text leaks to subject', noScoreText,
       noScoreText?'no score text in subject clone':'SCORE/feedback text leaked');
    ok('subject: neutral hold screen shown when results were visible', stripped && holdShown,
       (stripped&&holdShown)?'hold screen added':'stripped='+stripped+' hold='+holdShown);
    // And: a stimulus-only clone must be left untouched (no false hold screen).
    var clone2=document.createElement('div');
    clone2.innerHTML='<div id="ornStimPhase" style="display:flex">tone</div>';
    var stripped2=window.cognosStripResultsForSubject(clone2, document);
    ok('subject: stimulus-only frame passes through unchanged', !stripped2 && !!clone2.querySelector('#ornStimPhase') && !clone2.querySelector('.cognos-subject-hold'),
       (!stripped2)?'no false strip on stimulus frame':'incorrectly stripped a stimulus-only frame');
  }

  function pathResponseWindow(){
    // ── Response-window bug class ──────────────────────────────────────────
    // Several brief-flash tasks (VPP and N2b were the confirmed cases) attached
    // a keydown listener at stimulus onset, then removed it inside a SHORT
    // stimulus-blank timer — so the response window closed ~300-400 ms after
    // onset, before a participant could realistically respond. Correct presses
    // made after the stimulus vanished were silently dropped (0% accuracy).
    //
    // Detector: for each task region that wires up a keydown/keypress listener,
    // extract the ENCLOSING function body (brace-balanced) and find the response
    // window = the largest timer delay in that body that gates either the
    // listener removal or the no-response/timeout/miss logging. Two valid
    // patterns exist and both must be handled:
    //   (a) per-trial listener: add → (timers) → removeEventListener
    //   (b) persistent listener with self-guard + a TIMEOUT timer that logs a
    //       miss (e.g. `if(waiting){…responded:false…} ,1500)`).
    // A window below the minimum is flagged. Conservative threshold.
    var src=document.documentElement.innerHTML;
    var MIN_WINDOW_MS=500;   // a usable manual response window is >= ~0.5 s

    var scripts=src.split(/<\/?script[^>]*>/i).filter(function(s,i){return i%2===1;});
    var code=scripts.join('\n');

    // Extract the brace-balanced body of the function enclosing position `pos`.
    function enclosingFnBody(pos){
      // Walk backwards to the nearest "function" keyword that opens a body
      // containing pos.
      var head=code.lastIndexOf('function', pos);
      while(head>=0){
        var brace=code.indexOf('{', head);
        if(brace<0) break;
        // balance from brace forward
        var depth=0, end=-1;
        for(var i=brace;i<code.length;i++){
          var c=code[i];
          if(c==='{')depth++;
          else if(c==='}'){depth--; if(depth===0){end=i;break;}}
        }
        if(end>pos && brace<pos){
          var sig=code.slice(head,brace);
          var nameM=sig.match(/function\s+([a-zA-Z_$][\w$]*)/);
          var argM=sig.match(/\(([^)]*)\)/);
          var isHandler=argM && /\be\b/.test(argM[1]);  // function(e)/kh(e) → event handler
          return { body:code.slice(brace,end+1), name:nameM?nameM[1]:'(anon)', isHandler:!!isHandler };
        }
        head=code.lastIndexOf('function', head-1);
      }
      return null;
    }

    // Largest timer delay (T(fn,ms) / setTimeout(fn,ms)) in a body, considering
    // "350+Math.random()*250" as 350 (its floor).
    function maxDelay(body){
      var r=/,\s*(\d{2,5})(?:\s*\+\s*Math\.random\(\)\s*\*\s*\d+)?\s*\)/g, dd, mx=0;
      while((dd=r.exec(body))){ var v=parseInt(dd[1],10); if(v>mx&&v>=20&&v<=20000) mx=v; }
      return mx;
    }
    // Whether the body has an ONSET-DRIVEN response window: a timeout that logs a
    // miss / no-response regardless of the participant (the thing that defines a
    // forced-pace response window). Self-paced recognition tasks (which simply
    // wait for a valid key, advancing only inside the keydown handler) have no
    // such timeout and must NOT be flagged — their window is effectively
    // unlimited. We detect the miss branch and, if present, take the response
    // window as the largest timer that encloses it.
    function responseWindow(body){
      // Find a miss/no-response branch: either an explicit guard on a
      // responded/waiting flag, OR a logged miss (response:null / rt:null /
      // TIMEOUT) inside a timeout — both define a forced-pace window. Tasks
      // with NEITHER are genuinely self-paced (wait at a stable phase) and are
      // not applicable.
      var missGuard=/if\s*\(\s*!\s*(?:responded|resp|_[A-Z0-9]+\.waiting|waiting)\b/;
      var missLog=/response\s*:\s*null|rt\s*:\s*null|['"]TIMEOUT['"]|no response/;
      if(!missGuard.test(body) && !missLog.test(body)) return null;   // self-paced → n/a
      return maxDelay(body);
    }

    var addRe=/addEventListener\(\s*['"](keydown|keypress|keyup)['"]/g, m;
    var seen={}, findings=[];
    while((m=addRe.exec(code))){
      var fn=enclosingFnBody(m.index);
      if(!fn) continue;
      if(fn.isHandler) continue;   // the keydown handler closure, not the trial body
      // The collector body must itself REGISTER the listener (contain the
      // addEventListener call). The keydown HANDLER closure also matches the
      // outer scan but only USES e.key/e.code — exclude it so we measure the
      // trial body's window, not the handler's internal guards.
      if(!/addEventListener\(\s*['"](keydown|keypress|keyup)['"]/.test(fn.body)) continue;
      // The body must also END the response somehow (remove listener OR log a
      // miss / timeout), confirming this is a per-trial collector, not a
      // page-level shortcut handler.
      var endsResponse=/removeEventListener\(\s*['"](keydown|keypress|keyup)['"]/.test(fn.body)
                      || /responded\s*:\s*false|rt\s*:\s*null|TIMEOUT|misses?\+\+/.test(fn.body);
      if(!endsResponse) continue;
      var keyName=(fn.name||'(anon)')+'@'+m.index;
      if(seen[keyName]) continue; seen[keyName]=true;
      var win=responseWindow(fn.body);
      if(win==null) continue;   // self-paced collector — no forced response window
      findings.push({ window:win, label:fn.name||'(anon)' });
    }

    ok('response-window: interactive keydown collectors found', findings.length>0,
       findings.length+' per-trial keydown response collectors scanned');

    var tooShort=findings.filter(function(f){ return f.window>0 && f.window < MIN_WINDOW_MS; });
    ok('response-window: every keydown response window ≥ '+MIN_WINDOW_MS+' ms', tooShort.length===0,
       tooShort.length
         ? ('TOO SHORT ('+tooShort.length+'): '+tooShort.map(function(f){return f.label+'='+f.window+'ms';}).slice(0,10).join(', '))
         : ('all '+findings.length+' windows ≥ '+MIN_WINDOW_MS+' ms'));

    // Positive regression checks on the two confirmed-and-fixed tasks.
    function fnWindowContaining(anchorRe){
      var i=code.search(anchorRe); if(i<0) return null;
      var fn=enclosingFnBody(i); return fn?(responseWindow(fn.body)||maxDelay(fn.body)):null;
    }
    // Anchor on a string unique to each task's trial body that also contains the
    // addEventListener registration, so we measure the trial window (not a
    // nested timer closure).
    var vppWin=fnWindowContaining(/var isFace=Math\.random\(\)<0\.5/);
    var n2bWin=fnWindowContaining(/var isTarget=Math\.random\(\)<targetProb/);
    if(vppWin!=null) ok('response-window: VPP window restored (≥1000 ms)', vppWin>=1000, 'VPP max timer='+vppWin+'ms');
    if(n2bWin!=null) ok('response-window: N2b window restored (≥1000 ms)', n2bWin>=1000, 'N2b max timer='+n2bWin+'ms');
    // ERAN previously had NO timeout: its keydown collector advanced only inside
    // the handler, so a missed Y/N stalled the task on trial 1. It now logs a
    // miss after ~3 s. Regression-guard that window exists and is long enough.
    var eranWin=fnWindowContaining(/\$\('eranInstruct'\)\.textContent='Does the final chord fit\?'/);
    if(eranWin!=null) ok('response-window: ERAN advances on no-response (≥1000 ms timeout)', eranWin>=1000,
       'ERAN max timer='+eranWin+'ms (was: no timeout → one-trial stall)');

    rec('response-window: scan is a source heuristic (info)', true,
        'flags collector functions whose largest gating timer < '+MIN_WINDOW_MS+' ms; verify any flag in-browser');
  }

  function pathSidebar(){
    // ── Sidebar wiring ─────────────────────────────────────────────────────
    // The live left-pane readout (task name, trial, accuracy, RT, hits/FA, d′)
    // is driven by _findActiveTaskEngine() → _updateSidebarFromActiveEngine().
    // A task shows live metrics only if its engine object is DISCOVERABLE by the
    // finder. Engines come in two flavours: `var _XXX` (enumerable on window) and
    // `const/let XXX` (lexical — invisible to a window scan, resolvable only by
    // name). This suite confirms the finder finds BOTH kinds, for every task.
    var scripts=document.documentElement.innerHTML
                  .split(/<\/?script[^>]*>/i).filter(function(s,i){return i%2===1;}).join('\n');

    // The finder must derive its candidate list from the task tiles (so new
    // tasks are covered automatically) rather than a frozen hardcoded array.
    var fm=scripts.match(/function\s+_findActiveTaskEngine\s*\([^)]*\)\s*\{([\s\S]*?)\n\s*function\s/);
    var finderSrc=fm?fm[1]:'';
    var usesTiles=/querySelectorAll\(\s*['"]\.task-tile\[data-task\]['"]\s*\)/.test(finderSrc);
    ok('sidebar: active-engine finder enumerates task tiles (no frozen name list)', usesTiles,
       usesTiles ? 'finder probes every task code via the tiles' : 'finder uses a hardcoded list — const engines may be missed');

    // Enumerate candidate engines the RELIABLE way (no source regex): every task
    // tile code, plus every enumerable `var _XXX` window engine. For each that
    // resolves to an object carrying a boolean `active` flag, run a functional
    // probe: flip it active, confirm the finder returns it, restore.
    var codes={};
    try{
      Array.prototype.forEach.call(document.querySelectorAll('.task-tile[data-task]'),
        function(t){ var c=t.getAttribute('data-task'); if(c) codes[c.toUpperCase()]=true; });
    }catch(e){}
    try{
      for(var k in window){ if(/^_[A-Z][A-Z0-9_]*$/.test(k)){ var o=window[k];
        if(o && typeof o==='object' && typeof o.active==='boolean') codes[k.replace(/^_/,'').toUpperCase()]=true; } }
    }catch(e){}
    var codeList=Object.keys(codes);

    var resolved=[], missed=[], probed=0;
    codeList.forEach(function(code){
      var obj=null;
      try{ obj=(typeof _cognosResolveTaskObj==='function') && _cognosResolveTaskObj(code); }catch(e){}
      // Only engines (objects with an `active` flag) participate; tasks that are
      // self-paced questionnaires/screens legitimately have no engine and are
      // skipped (the sidebar shows them via the generic S path instead).
      if(!obj || typeof obj!=='object' || typeof obj.active!=='boolean') return;
      resolved.push(code);
      if(typeof _findActiveTaskEngine!=='function') return;
      var prev=obj.active; probed++;
      try{
        obj.active=true;
        var found=_findActiveTaskEngine();
        // Accept a match on the engine's own code OR a tile alias (e.g. engine
        // MMNS ↔ tile MMNSP, engine P ↔ tile POSNER) — the finder returns the
        // tile code, which is what the sidebar labels with.
        var fc=found?String(found.code).toUpperCase():'';
        if(!found || (fc!==code && found.obj!==obj)) missed.push(code+(found?('→'+fc):'→none'));
      }catch(e){ missed.push(code+'(err)'); }
      finally{ obj.active=prev; }
    });

    ok('sidebar: engine-bearing tasks resolve via _cognosResolveTaskObj', resolved.length>0,
       resolved.length+' engine objects resolved (var _X + const X)');
    ok('sidebar: finder locates every engine when active', missed.length===0,
       missed.length ? ('NOT FOUND: '+missed.slice(0,12).join(', ')) : (probed+' engines located by the finder'));
    ok('sidebar: live readout driver present',
       typeof _updateSidebarFromActiveEngine==='function',
       typeof _updateSidebarFromActiveEngine==='function'?'ok':'missing');

    // ── Readout YIELD: a discoverable engine isn't enough — the panel must
    // actually fill. This reproduces the N2b blank-panel bug: the engine was
    // found, but its log had no `correct` field so accuracy stayed "—".
    // For each response-scoring engine, inject a synthetic populated log, drive
    // the readout, and confirm TRIAL + ACC come out non-blank. Restore after.
    if(typeof _updateSidebarFromActiveEngine==='function'){
      var blankReadout=[];
      var elTask=$('si-task'), elTrial=$('si-trial'), elAcc=$('si-acc');
      var save={ task:elTask&&elTask.textContent, trial:elTrial&&elTrial.textContent, acc:elAcc&&elAcc.textContent };
      resolved.forEach(function(code){
        var obj=null; try{ obj=_cognosResolveTaskObj(code); }catch(e){}
        if(!obj) return;
        // Snapshot fields we touch.
        var snap={active:obj.active, trial:obj.trial, maxTrials:obj.maxTrials, log:obj.log};
        // Build a synthetic 4-trial log WITHOUT a per-trial `correct` field —
        // exactly like N2b's real log — so this specifically exercises the
        // derived-accuracy path (hits + correct rejections) that was blank.
        var sample=[
          {trial:1,isTarget:true, isOddball:true, isNoGo:false, stimType:'GO',  responded:true,  rt:400},
          {trial:2,isTarget:false,isOddball:false,isNoGo:true,  stimType:'NOGO',responded:false, rt:null},
          {trial:3,isTarget:true, isOddball:true, isNoGo:false, stimType:'GO',  responded:true,  rt:420},
          {trial:4,isTarget:false,isOddball:false,isNoGo:true,  stimType:'NOGO',responded:false, rt:null}
        ];
        try{
          obj.active=true; obj.trial=4; obj.maxTrials=4; obj.log=sample;
          window._lastTaskEngine={obj:obj, code:code};
          _updateSidebarFromActiveEngine();
          var trialTxt=elTrial?elTrial.textContent:'', accTxt=elAcc?elAcc.textContent:'';
          // Trial must always render; ACC must render for response tasks (our
          // synthetic log always scores), so a "—" here means the readout path
          // failed to compute accuracy for this engine.
          if(trialTxt==='—' || trialTxt==='' || accTxt==='—' || accTxt==='') blankReadout.push(code+'(t='+trialTxt+',acc='+accTxt+')');
        }catch(e){ blankReadout.push(code+'(err)'); }
        finally{ obj.active=snap.active; obj.trial=snap.trial; obj.maxTrials=snap.maxTrials; obj.log=snap.log; }
      });
      // restore visible panel
      try{ if(elTask) elTask.textContent=save.task; if(elTrial) elTrial.textContent=save.trial; if(elAcc) elAcc.textContent=save.acc; window._lastTaskEngine=null; }catch(e){}
      ok('sidebar: every engine yields a non-blank trial + accuracy readout', blankReadout.length===0,
         blankReadout.length ? ('BLANK: '+blankReadout.slice(0,12).join(', ')) : (resolved.length+' engines render live metrics'));
    }

    // ── PERSISTENCE: after a task ends (active=false) the panel should keep the
    // last engine's final stats instead of blanking (the other half of the N2b
    // bug). Verify the last-engine fallback path renders when nothing is active.
    if(typeof _updateSidebarFromActiveEngine==='function' && resolved.length){
      var pCode=resolved[0], pObj=null; try{ pObj=_cognosResolveTaskObj(pCode); }catch(e){}
      if(pObj){
        var ps={active:pObj.active, log:pObj.log, trial:pObj.trial, maxTrials:pObj.maxTrials};
        var elT2=$('si-trial'); var sv2=elT2&&elT2.textContent;
        try{
          pObj.active=false;                 // task "ended"
          pObj.log=[{trial:1,isTarget:true,responded:true,correct:true,rt:400}];
          pObj.trial=1; pObj.maxTrials=1;
          window._lastTaskEngine={obj:pObj, code:pCode};
          var persisted=_updateSidebarFromActiveEngine();
          ok('sidebar: final stats persist after a task ends (no blank-out)', persisted===true && elT2 && elT2.textContent!=='—' && elT2.textContent!=='',
             persisted?('last-engine readout retained ('+pCode+')'):'panel blanked when task inactive');
        }catch(e){ ok('sidebar: final stats persist after a task ends (no blank-out)', false, 'err: '+(e&&e.message)); }
        finally{ pObj.active=ps.active; pObj.log=ps.log; pObj.trial=ps.trial; pObj.maxTrials=ps.maxTrials; window._lastTaskEngine=null; if(elT2&&sv2!=null) elT2.textContent=sv2; }
      }
    }

    rec('sidebar: engine inventory (info)', true, resolved.sort().join(' '));
  }

  function pathTrialExec(){
    // ── First-trial execution probe (ReferenceError class) ─────────────────
    // The Pd bug was `ctx.strokeStyle = GOLD` where GOLD was defined only inside
    // OTHER functions → a ReferenceError that crashed the first trial. The
    // `dispatch` suite missed it because the first trial fires on a delayed
    // timer and never runs during a plain intro launch.
    //
    // This probe starts each engine task with setTimeout shimmed to fire
    // synchronously (capped), so the first trial's draw code actually executes.
    // It reports ONLY ReferenceErrors (undefined variable / function) — the Pd
    // class — and deliberately ignores other throws (e.g. AudioContext/canvas
    // quirks in the test context) to avoid false positives.
    if(typeof _doStartPractice!=='function' || typeof window.resetAll!=='function'){
      rec('trialexec: prerequisites', false, 'need _doStartPractice + resetAll'); return;
    }
    var codes=[];
    try{
      Array.prototype.forEach.call(document.querySelectorAll('.task-tile[data-task]'), function(t){
        var c=t.getAttribute('data-task'); if(!c) return;
        var o=null; try{ o=_cognosResolveTaskObj(c); }catch(e){}
        if(o && typeof o==='object' && typeof o.active==='boolean') codes.push(c.toUpperCase());
      });
    }catch(e){}

    var realST=window.setTimeout, realSI=window.setInterval, realRAF=window.requestAnimationFrame;
    var refErrors=[], ran=0;
    function restore(){ window.setTimeout=realST; window.setInterval=realSI; window.requestAnimationFrame=realRAF; }
    codes.forEach(function(code){
      var fired=0, CAP=4, refErr=null;
      window.setTimeout=function(fn){ if(typeof fn==='function' && fired<CAP){ fired++; try{ fn(); }catch(e){ if(e instanceof ReferenceError && !refErr) refErr=e; } } return 0; };
      window.setInterval=function(){ return 0; };
      window.requestAnimationFrame=function(){ return 0; };
      try{ window.currentIntroTask=code; _doStartPractice(); }
      catch(e){ if(e instanceof ReferenceError && !refErr) refErr=e; }
      restore();
      try{ window.resetAll(); }catch(_e){}
      ran++;
      if(refErr) refErrors.push(code+': '+(refErr.message||'ReferenceError').slice(0,50));
    });
    restore();
    try{ window.resetAll(); }catch(_e){}

    ok('trialexec: no undefined-variable crashes in trial code (first trials run)', refErrors.length===0,
       refErrors.length ? ('ReferenceError ('+refErrors.length+'): '+refErrors.slice(0,8).join(' | ')) : (ran+' engine tasks ran their first trial(s) with no ReferenceError'));
    rec('trialexec: probe note (info)', true,
        'fires up to 4 timers/task synchronously to execute the first trial; flags ReferenceErrors only (the Pd/GOLD class)');
  }

  var SUITES=[
    { key:'practice',  cat:'Robustness', label:'Practice blocks short (≤cap, ≤ main count)', run:pathPracticeCounts },
    { key:'subject',   cat:'Robustness', label:'Subject view hides results (dual-monitor privacy)', run:pathSubjectView },
    { key:'tiles',     cat:'Structure', label:'Task tiles (present + unique + labelled)', run:pathTiles },
    { key:'paradigms', cat:'Structure', label:'Paradigm definitions (resolve + name + body)', run:pathParadigms },
    { key:'i18n',      cat:'Structure', label:'Translation coverage (13 languages)', run:pathI18n },
    { key:'dispatch',  cat:'Structure', label:'Dispatch — every task intro launches', run:pathDispatch },
    { key:'parity',    cat:'Structure', label:'Dispatch parity (practice / skip / main in sync)', run:pathDispatchParity },
    { key:'autoresume',cat:'Robustness', label:'Auto-resume reopens every task (store + tile-click path)', run:pathAutoResume },
    { key:'micguard',  cat:'Robustness', label:'No task requests the microphone unprompted (keyboard mode)', run:pathMicGuard },
    { key:'textguard', cat:'Robustness', label:'No cognitive task depends on free-text typing (recognition/MC only)', run:pathTextInputGuard },
    { key:'participant', cat:'Structure', label:'Participant intake (questionnaire + result stamping)', run:pathParticipant },
    { key:'export',    cat:'Structure', label:'Results store + export', run:pathExport },
    { key:'uinav',     cat:'Structure', label:'UI navigation (intro → back-to-home)', run:pathUINav },
    { key:'exitpaths', cat:'Structure', label:'Exit paths safe (RESET / abort / ESC → home)', run:pathExitPaths },
    { key:'input',     cat:'Structure', label:'Input modalities (keyboard / mouse)', run:pathInput },
    { key:'handlers',  cat:'Robustness', label:'Dangling onclick handlers (every button resolves)', run:pathHandlers },
    { key:'drift',     cat:'Robustness', label:'hideAll drift (every task-screen hides)', run:pathHideAllDrift },
    { key:'timers',    cat:'Robustness', label:'Timer leaks (no stray timers past reset)', run:pathTimerLeaks },
    { key:'respwin',   cat:'Robustness', label:'Response windows long enough (keydown not removed too early)', run:pathResponseWindow },
    { key:'sidebar',   cat:'Robustness', label:'Live sidebar wiring (every engine discoverable + readable)', run:pathSidebar },
    { key:'trialexec', cat:'Robustness', label:'First trial runs without undefined-variable crash (Pd/GOLD class)', run:pathTrialExec },
    { key:'layout',    cat:'Robustness', label:'Layout geometry (overflow / overlap / centring)', run:pathLayout },
    { key:'photic',    cat:'Robustness', label:'Photic trigger flash (visible during, stops on abort)', run:pathPhotic },
    { key:'paradigm',  cat:'Robustness', label:'Paradigm integrity (passive auto-advance, no answer cues)', run:pathParadigmIntegrity },
    { key:'progress',  cat:'Robustness', label:'Progress-bar confound (hidden on passive/self-paced tasks)', run:pathProgressConfound },
    { key:'auditory',  cat:'Task UI',   label:'Auditory ERP task UI (screens + controls + cleanup)', run:pathAuditory },
    { key:'visual',    cat:'Task UI',   label:'Visual ERP task UI (screens + controls + cleanup)', run:pathVisual },
    { key:'fam_atten', cat:'Tasks',     label:'Attention / Executive tasks', run:makeFamilySuite('Attention/Executive', TASK_FAMILIES['Attention/Executive']) },
    { key:'fam_mem',   cat:'Tasks',     label:'Memory tasks', run:makeFamilySuite('Memory', TASK_FAMILIES['Memory']) },
    { key:'fam_lang',  cat:'Tasks',     label:'Language / Naming tasks', run:makeFamilySuite('Language/Naming', TASK_FAMILIES['Language/Naming']) },
    { key:'fam_reas',  cat:'Tasks',     label:'Reasoning / Motor tasks', run:makeFamilySuite('Reasoning/Motor', TASK_FAMILIES['Reasoning/Motor']) },
    { key:'fam_erp',   cat:'Tasks',     label:'Other ERP tasks (response/feedback/motor)', run:makeFamilySuite('Other ERP', TASK_FAMILIES['Other ERP']) },
    { key:'fam_clin',  cat:'Tasks',     label:'Clinical scales / Sensory screens', run:makeFamilySuite('Clinical/Sensory', TASK_FAMILIES['Clinical/Sensory']) }
  ];

  function runSelected(keys){
    _results=[];
    var t0=performance.now();
    keys.forEach(function(k){
      var s=SUITES.filter(function(x){return x.key===k;})[0];
      if(!s) return;
      _results.push({sep:true, label:s.label});
      try{ s.run(); }catch(e){ rec(s.key+': suite crashed', false, String(e&&e.message||e)); }
    });
    return { ms:Math.round(performance.now()-t0) };
  }

  function format(timing){
    var pass=0, fail=0;
    _results.forEach(function(r){ if(r.sep) return; if(r.ok) pass++; else fail++; });
    var lines=[];
    lines.push('COGNOS — TASK BATTERY TEST HARNESS');
    lines.push(new Date().toString());
    lines.push('PASS '+pass+'   FAIL '+fail+'   ('+timing.ms+' ms)');
    lines.push('════════════════════════════════════════');
    _results.forEach(function(r){
      if(r.sep){ lines.push(''); lines.push('▣ '+r.label); return; }
      lines.push('   ['+(r.ok?'PASS':'FAIL')+'] '+r.name+(r.detail?('  ->  '+r.detail):''));
    });
    lines.push('════════════════════════════════════════');
    if(fail===0) lines.push('All selected checks passed.');
    else {
      lines.push('FAILURES:');
      _results.forEach(function(r){ if(!r.sep && !r.ok) lines.push('  • '+r.name+(r.detail?('  ->  '+r.detail):'')); });
    }
    window._lastCognosFail=fail;
    return { text:lines.join('\n'), fail:fail, pass:pass };
  }

  // ════════════════════ CONSENT GATE ════════════════════
  // Shown before every run for non-developers. Collects required email +
  // institution (carried only into the email draft the user chooses to send).
  function devModeActive(){
    try{
      if(/[?&]dev=1\b/.test(location.search)){ localStorage.setItem('cognos.devMode','1'); return true; }
      if(/[?&]dev=0\b/.test(location.search)){ localStorage.removeItem('cognos.devMode'); return false; }
      return localStorage.getItem('cognos.devMode')==='1';
    }catch(e){ return /[?&]dev=1\b/.test(location.search); }
  }

  // Persisted identity + one-time acknowledgment. After the first valid entry
  // the email/institution and an "acknowledged" flag are stored on this browser;
  // subsequent runs load the values and skip the consent form entirely.
  // (?reconsent=1 forces the form to show again — useful for re-identifying.)
  function loadStoredUser(){
    try{
      if(!window._cognosUserEmail){ var e=localStorage.getItem('cognos.userEmail'); if(e) window._cognosUserEmail=e; }
      if(!window._cognosUserInst){ var i=localStorage.getItem('cognos.userInst'); if(i) window._cognosUserInst=i; }
    }catch(_e){}
  }
  function saveStoredUser(email, inst){
    try{
      localStorage.setItem('cognos.userEmail', email);
      localStorage.setItem('cognos.userInst', inst);
      localStorage.setItem('cognos.consentAck', '1');
    }catch(_e){}
  }
  function hasAcknowledged(){
    if(/[?&]reconsent=1\b/.test(location.search)) return false;  // force form again
    loadStoredUser();
    try{
      return localStorage.getItem('cognos.consentAck')==='1'
        && !!window._cognosUserEmail && !!window._cognosUserInst;
    }catch(_e){ return false; }
  }

  function showConsentThen(proceed){
    var ov=$('cognos-consent-overlay'); if(ov) ov.remove();
    ov=document.createElement('div'); ov.id='cognos-consent-overlay';
    ov.style.cssText='position:fixed;inset:0;z-index:100002;background:rgba(5,10,18,0.8);';
    ov.innerHTML='<div style="position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:min(560px,94vw);'
      +'background:#0f1c27;border:1px solid rgba(212,165,32,0.5);border-radius:6px;padding:18px;'
      +'font-family:\'Source Code Pro\',monospace;color:#e8e0d0;box-shadow:0 12px 48px rgba(0,0,0,0.6);max-height:90vh;overflow:auto;">'
      +'<strong style="color:#d4a520;font-size:0.95rem;">Before you run the tests</strong>'
      +'<div style="color:#cfe3d0;font-size:0.74rem;line-height:1.55;margin:12px 2px;">'
      +'This is a <b style="color:#e0b830;">research / development build</b>, not a finished or clinically validated product. By running the self-test you acknowledge:'
      +'<ul style="margin:8px 0 0;padding-left:18px;">'
      +'<li style="margin-bottom:5px;">It is <b>not a medical device</b> and must not be used for diagnosis or any clinical decision.</li>'
      +'<li style="margin-bottom:5px;">Tasks and features may change, break, or be removed between versions.</li>'
      +'<li style="margin-bottom:5px;">The self-test checks structure (tasks register, launch, export) — it does not validate scoring on real responses.</li>'
      +'<li>If you choose to email results, they are placed in a Gmail draft in <b>your</b> browser — nothing is sent automatically.</li>'
      +'</ul></div>'
      +'<div style="color:#cfe3d0;font-size:0.72rem;line-height:1.5;margin:4px 2px 8px;">'
      +'Please identify yourself so test reports can be attributed. These details are placed only into the email draft you choose to send.'
      +'</div>'
      +'<label style="display:block;font-size:0.68rem;color:#9fb6c9;margin:0 2px 3px;">Your email <span style="color:#e08a8a;">*</span></label>'
      +'<input id="ccon-email" type="email" placeholder="you@institution.edu" style="width:100%;box-sizing:border-box;background:#0a141f;color:#e8e0d0;border:1px solid rgba(212,165,32,0.3);border-radius:4px;padding:7px 9px;font-family:inherit;font-size:0.76rem;margin-bottom:8px;">'
      +'<label style="display:block;font-size:0.68rem;color:#9fb6c9;margin:0 2px 3px;">Institution / affiliation <span style="color:#e08a8a;">*</span></label>'
      +'<input id="ccon-inst" type="text" placeholder="University / lab / company" style="width:100%;box-sizing:border-box;background:#0a141f;color:#e8e0d0;border:1px solid rgba(212,165,32,0.3);border-radius:4px;padding:7px 9px;font-family:inherit;font-size:0.76rem;margin-bottom:4px;">'
      +'<div id="ccon-msg" style="min-height:13px;font-size:0.64rem;color:#e0b27a;margin:0 2px 8px;"></div>'
      +'<div style="display:flex;gap:8px;margin-top:2px;">'
      +'<button id="ccon-cancel" style="flex:1;background:rgba(15,28,39,0.92);border:1px solid rgba(212,165,32,0.4);color:#d4a520;border-radius:3px;padding:9px;cursor:pointer;font-family:inherit;">Cancel</button>'
      +'<button id="ccon-ok" disabled style="flex:2;background:#d4a520;border:none;color:#0f1c27;border-radius:3px;padding:9px;cursor:not-allowed;font-family:inherit;font-weight:bold;opacity:0.45;">I understand — run tests</button>'
      +'</div></div>';
    document.body.appendChild(ov);
    var emailEl=$('ccon-email'), instEl=$('ccon-inst'), okBtn=$('ccon-ok'), msgEl=$('ccon-msg');
    if(window._cognosUserEmail) emailEl.value=window._cognosUserEmail;
    if(window._cognosUserInst)  instEl.value=window._cognosUserInst;
    function emailValid(v){ return /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(v.trim()); }
    function validate(){
      var e=emailEl.value.trim(), i=instEl.value.trim(), good=emailValid(e)&&i.length>0;
      okBtn.disabled=!good; okBtn.style.opacity=good?'1':'0.45'; okBtn.style.cursor=good?'pointer':'not-allowed';
      if(e&&!emailValid(e)) msgEl.textContent='Please enter a valid email address.';
      else if(emailValid(e)&&!i) msgEl.textContent='Please enter your institution.';
      else msgEl.textContent='';
      return good;
    }
    emailEl.addEventListener('input', validate); instEl.addEventListener('input', validate); validate();
    ov.addEventListener('click', function(e){ if(e.target===ov) ov.remove(); });
    $('ccon-cancel').addEventListener('click', function(){ ov.remove(); });
    okBtn.addEventListener('click', function(){
      if(!validate()) return;
      window._cognosUserEmail=emailEl.value.trim();
      window._cognosUserInst=instEl.value.trim();
      saveStoredUser(window._cognosUserEmail, window._cognosUserInst);  // remember for next time
      ov.remove(); proceed();
    });
  }

  // ════════════════════ SUITE PICKER ════════════════════
  function showPicker(){
    var ov=$('cognos-test-select'); if(ov){ ov.style.display='block'; return; }
    ov=document.createElement('div'); ov.id='cognos-test-select';
    ov.style.cssText='position:fixed;inset:0;z-index:100001;background:rgba(5,10,18,0.74);';
    var rows=SUITES.map(function(s){
      return '<label class="cognos-row" style="display:flex;align-items:center;gap:9px;padding:6px 8px;border-radius:4px;cursor:pointer;'
        +'border:1px solid rgba(212,165,32,0.16);margin-bottom:5px;background:rgba(10,20,31,0.55);">'
        +'<input type="checkbox" class="cognos-cb" data-key="'+s.key+'" checked style="width:15px;height:15px;accent-color:#d4a520;cursor:pointer;">'
        +'<span style="flex:1;color:#e8e0d0;font-size:0.76rem;">'+s.label+'</span>'
        +'<span style="color:#7f9bb3;font-size:0.62rem;font-family:\'Source Code Pro\',monospace;">'+s.key+'</span></label>';
    }).join('');
    ov.innerHTML='<div style="position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:min(560px,94vw);'
      +'background:#0f1c27;border:1px solid rgba(212,165,32,0.5);border-radius:6px;padding:16px;'
      +'font-family:\'Source Code Pro\',monospace;color:#e8e0d0;box-shadow:0 12px 48px rgba(0,0,0,0.6);max-height:90vh;overflow:auto;">'
      +'<div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;">'
      +'<strong style="color:#d4a520;font-size:0.95rem;">Select test suites</strong>'
      +'<button id="csel-close" style="background:none;border:1px solid rgba(212,165,32,0.4);color:#d4a520;border-radius:3px;padding:2px 9px;cursor:pointer;font-family:inherit;">✕</button></div>'
      +'<div style="color:#9fb6c9;font-size:0.68rem;margin-bottom:10px;">Tick the suites to run. Dispatch launches all 112 task intros (safe — no timed stimuli).</div>'
      +'<div style="display:flex;gap:7px;margin-bottom:10px;">'
      +'<button id="csel-all"  style="background:rgba(15,28,39,0.92);border:1px solid rgba(212,165,32,0.4);color:#d4a520;border-radius:3px;padding:4px 12px;cursor:pointer;font-family:inherit;font-size:0.68rem;">✓ All</button>'
      +'<button id="csel-none" style="background:rgba(15,28,39,0.92);border:1px solid rgba(212,165,32,0.4);color:#d4a520;border-radius:3px;padding:4px 12px;cursor:pointer;font-family:inherit;font-size:0.68rem;">✕ None</button>'
      +'</div>'
      +'<div>'+rows+'</div>'
      +'<div style="display:flex;gap:8px;margin-top:6px;">'
      +'<button id="csel-run" style="flex:2;background:#d4a520;border:none;color:#0f1c27;border-radius:3px;padding:9px;cursor:pointer;font-family:inherit;font-weight:bold;">▶ Run selected</button>'
      +'<button id="csel-runall" style="flex:1;background:rgba(15,28,39,0.92);border:1px solid rgba(212,165,32,0.55);color:#d4a520;border-radius:3px;padding:9px;cursor:pointer;font-family:inherit;font-weight:bold;">▶ Run ALL</button>'
      +'</div>'
      +'</div>';
    document.body.appendChild(ov);
    ov.addEventListener('click', function(e){ if(e.target===ov) ov.style.display='none'; });
    $('csel-close').addEventListener('click', function(){ ov.style.display='none'; });
    var cbs=function(){ return Array.prototype.slice.call(ov.querySelectorAll('.cognos-cb')); };
    var picked=function(){ return cbs().filter(function(c){return c.checked;}).map(function(c){return c.dataset.key;}); };
    $('csel-all').addEventListener('click', function(){ cbs().forEach(function(c){ c.checked=true; }); });
    $('csel-none').addEventListener('click', function(){ cbs().forEach(function(c){ c.checked=false; }); });
    function runKeys(keys){
      if(!keys.length) return;
      ov.style.display='none';
      var timing=runSelected(keys);
      showResults(format(timing));
    }
    $('csel-run').addEventListener('click', function(){ runKeys(picked()); });
    $('csel-runall').addEventListener('click', function(){
      // Run ALL — every suite regardless of what's ticked.
      cbs().forEach(function(c){ c.checked=true; });
      runKeys(SUITES.map(function(s){ return s.key; }));
    });
  }

  // ════════════════════ RESULTS PANEL ════════════════════
  function showResults(out){
    var ov=$('cognos-test-overlay');
    if(!ov){
      ov=document.createElement('div'); ov.id='cognos-test-overlay';
      ov.style.cssText='position:fixed;inset:0;z-index:100000;background:rgba(5,10,18,0.74);';
      ov.innerHTML='<div style="position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:min(720px,94vw);'
        +'background:#0f1c27;border:1px solid rgba(212,165,32,0.5);border-radius:6px;padding:16px;'
        +'font-family:\'Source Code Pro\',monospace;color:#e8e0d0;box-shadow:0 12px 48px rgba(0,0,0,0.6);">'
        +'<div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;">'
        +'<strong id="cognos-test-title" style="color:#d4a520;font-size:0.95rem;">Battery Tests</strong>'
        +'<button id="cognos-test-close" style="background:none;border:1px solid rgba(212,165,32,0.4);color:#d4a520;border-radius:3px;padding:2px 9px;cursor:pointer;font-family:inherit;">✕</button></div>'
        +'<textarea id="cognos-test-text" readonly style="width:100%;height:360px;box-sizing:border-box;background:#0a141f;color:#cfe3d0;'
        +'border:1px solid rgba(212,165,32,0.25);border-radius:4px;padding:10px;font-family:\'Source Code Pro\',monospace;font-size:0.72rem;line-height:1.4;resize:vertical;white-space:pre;"></textarea>'
        +'<div style="display:flex;gap:8px;margin-top:10px;">'
        +'<button id="cognos-test-copy" style="flex:1;background:#d4a520;border:none;color:#0f1c27;border-radius:3px;padding:7px;cursor:pointer;font-family:inherit;font-weight:bold;">Copy results</button>'
        +'<button id="cognos-test-email" style="flex:1;background:rgba(15,28,39,0.92);border:1px solid rgba(212,165,32,0.55);color:#d4a520;border-radius:3px;padding:7px;cursor:pointer;font-family:inherit;font-weight:bold;">✉ Email via Gmail</button>'
        +'<button id="cognos-test-rerun" style="background:rgba(15,28,39,0.92);border:1px solid rgba(212,165,32,0.4);color:#d4a520;border-radius:3px;padding:7px 14px;cursor:pointer;font-family:inherit;">Change selection…</button></div>'
        +'<div id="cognos-test-msg" style="min-height:14px;margin-top:6px;font-size:0.7rem;line-height:1.4;color:#9fcf9f;"></div></div>';
      document.body.appendChild(ov);
      ov.addEventListener('click', function(e){ if(e.target===ov) ov.style.display='none'; });
      $('cognos-test-close').addEventListener('click', function(){ ov.style.display='none'; });
      $('cognos-test-rerun').addEventListener('click', function(){ ov.style.display='none'; showPicker(); });
      $('cognos-test-copy').addEventListener('click', function(){
        var t=$('cognos-test-text'); t.focus(); t.select(); t.setSelectionRange(0,t.value.length);
        var done=function(){ $('cognos-test-msg').textContent='Copied!'; };
        var c=false; try{ c=document.execCommand('copy'); }catch(e){}
        if(c) done(); else if(navigator.clipboard) navigator.clipboard.writeText(t.value).then(done,function(){ $('cognos-test-msg').textContent='Press Ctrl/Cmd-C'; });
        else $('cognos-test-msg').textContent='Press Ctrl/Cmd-C';
      });
      $('cognos-test-email').addEventListener('click', function(){
        var t=$('cognos-test-text'); var copied=false;
        try{ t.focus(); t.select(); t.setSelectionRange(0,t.value.length); copied=document.execCommand('copy'); }catch(e){}
        var send=function(){
          var TO='stephenfsands@gmail.com';
          var fail=(window._lastCognosFail!==undefined?window._lastCognosFail:'?');
          var subject='Cognos self-test results'+(fail===0?' — all pass':(typeof fail==='number'?(' — '+fail+' failed'):''));
          var firstLines=t.value.split('\n').slice(0,3).join('\n');
          var who='From: '+(window._cognosUserEmail||'(not provided)')+'\nInstitution: '+(window._cognosUserInst||'(not provided)')+'\n\n';
          var body=who+'Cognos self-test results are below.\n(The full report has been copied to your clipboard — please PASTE it here, replacing this line.)\n\n'
            +firstLines+'\n...\n\n— What I was doing when this happened: \n— Browser & version: \n\nNote: this is a development build; results describe structural behaviour only.';
          var gmail='https://mail.google.com/mail/?view=cm&fs=1&to='+encodeURIComponent(TO)+'&su='+encodeURIComponent(subject)+'&body='+encodeURIComponent(body);
          var win=null; try{ win=window.open(gmail,'_blank','noopener'); }catch(e){ win=null; }
          var msg=$('cognos-test-msg');
          if(msg){
            if(win){ msg.style.color='#9fcf9f'; msg.innerHTML='Gmail compose opened in a new tab — paste the results (already copied) into the body, then send.'; }
            else { msg.style.color='#e0b27a'; msg.innerHTML='Your browser blocked the new tab. <a href="'+gmail+'" target="_blank" rel="noopener" style="color:#d4a520;text-decoration:underline;">Click here to open Gmail</a>, or email the results (already copied) to <b style="color:#d4a520;">'+TO+'</b>.'; }
          }
        };
        if(copied || !navigator.clipboard) send();
        else navigator.clipboard.writeText(t.value).then(function(){ copied=true; send(); }, send);
      });
    }
    ov.style.display='block';
    $('cognos-test-title').textContent = out.fail===0 ? 'Battery Tests — ALL PASS' : ('Battery Tests — '+out.fail+' FAILED');
    $('cognos-test-title').style.color = out.fail===0 ? '#9fcf9f' : '#e08a8a';
    $('cognos-test-text').value = out.text;
    $('cognos-test-msg').textContent='';
  }

  // ════════════════════ ENTRY ════════════════════
  window.runCognosTests = function(){
    if(devModeActive()){ showPicker(); return; }      // developer: skip consent
    if(hasAcknowledged()){ showPicker(); return; }     // already entered info + acknowledged → skip form
    showConsentThen(showPicker);                       // first time: consent + identify
  };
})();
// ── Auto-resume last task ────────────────────────────────────────────────
// Opt-in: only resumes when the "Auto-resume last task" toggle on the menu is
// enabled (stored in localStorage). Default OFF, so standard participants land
// on the tile menu. ?menu=1 always forces the menu.
(function(){
  function doResume(last, attempt){
    var introEl=document.getElementById('introScreen');
    var tile=document.querySelector('.task-tile[data-task="'+last+'"]');
    if(!tile){
      if(typeof showIntro==='function'){ try{ showIntro(last); }catch(e){ console.warn('auto-resume showIntro failed:',e); } }
      return;
    }
    try{ tile.click(); }
    catch(e){ if(typeof showIntro==='function'){ try{ showIntro(last); }catch(_e){ console.warn('auto-resume failed:',_e); } } }
    // Verify the intro actually opened; if not (load-time race or a later
    // initialiser navigated away), retry once after a longer settle.
    setTimeout(function(){
      var open = introEl && introEl.style.display!=='none';
      if(!open){
        if(attempt<2){ doResume(last, attempt+1); }
        else { console.warn('auto-resume: intro did not open for', last); }
      }
    }, 120);
  }
  function resumeLastTask(){
    try{
      // Restore the checkbox's visual state from storage.
      var on = localStorage.getItem('cognosAutoResume')==='1';
      var cb = document.getElementById('autoResumeToggle');
      if(cb) cb.checked = on;
      if(/[?&]menu=1\b/.test(location.search)) return;          // explicit opt-out
      if(!on) return;                                            // toggle off → normal menu
      var last=localStorage.getItem('cognosLastTask');
      if(!last) return;
      doResume(last, 1);
    }catch(e){ console.warn('auto-resume failed:',e); }
  }
  // Defer well past load so every other DOMContentLoaded initialiser (tile
  // setup, language pass, etc.) has finished before we open the task.
  function schedule(){ setTimeout(resumeLastTask, 250); }
  if(document.readyState==='loading'){
    document.addEventListener('DOMContentLoaded', schedule);
  } else {
    schedule();
  }
})();
</script>