User manual
2.3.5 Validate Screen
Figure 2-6 Validate Screen
2.3.5.1
2.3.5.2
Validate Screen Purpose
The Validate screen displays target positions to the participant and measures
the difference between the computed fixation position and the fixation position
for the target obtained during calibration. This error reflects the gaze accuracy
of the calibration. The functionality available in the Validate screen is very
similar to that of the Calibrate screen.
Validation should only be performed after Calibration.
To perform a validation, have the subject look at the first fixation point and
press the “Accept Fixation” button, or the ENTER or Spacebar key, to start the
validation. If auto trigger is not enabled, repeat this action after each target
fixation.
If the accuracy at a fixated position is not acceptable, you may choose to
perform a Calibration again and then recheck fixation accuracy by revalidating.
Validate Screen Main Functions
Click to go to the Camera Setup screen.
Keyboard Shortcuts: ESC = Camera Setup
Click to view the help menu for the Validate screen
Keyboard Shortcuts: F1 = Help
Click to reject the Validation value given and revert to
the Calibration screen
Keyboard Shortcuts: ESC = Abort if during Validation
30 EyeLink 1000 Host Application
© 2005-2008 SR Research Ltd.