Now Shipping! – The EyeLink 3; combined head and eye tracking at up to 1000 Hz.

FAQ: Why are the AVERAGE_* variables in the sample report blank?
#1
In Data Viewer reports, variables are often prefixed to indicate their source: LEFT_, RIGHT_, and AVERAGE_.
  • For binocular data: The AVERAGE_ variables contain the mean value of the corresponding LEFT_ and RIGHT_ eye data.
  • For monocular data: By default, the AVERAGE_ variables are left blank, as there is no second eye to average against.
Simplifying Analysis with Cyclopean Mode
If your dataset contains a mix of monocular and binocular recordings, managing separate columns for left and right eyes can complicate your analysis.

Cyclopean Mode unifies your data. When enabled, it intelligently populates the AVERAGE_ variables with data from whichever eye was recorded (or the average of both if available), creating a single, consistent column for all participants.

To enable this feature:
  • In the Inspector window, go to the Preferences tab.
  • Select the Output / Analysis section.
  • Check the box next to Cyclopean Mode.