The two most popular displays for eye tracking are the
The heat map shown
left represents the fixation locations and the
duration of the fixation.
A color scale moving from blue to red
indicates the duration of fixations.
Thus, a red spot over an area of interest
indicated that a subject or group of subjects have
moved their fovea to this location for a significant
period of time.
The figure to the left shows four groupings of eye
Blue spots indicate short fixations while green,
yellow and red represent increasing durations of
The heat map is a convenient method to
aggregate results and gives an immediate
impression of the areas of interest for most
subjects. It serves as a guide.