Table 1 Outcome measures associated with the eye-tracking data
Task | Outcomes | ||
|---|---|---|---|
Fixation | Rate of SWJs. Threshold for SWJ detection included saccade pairs (an initial saccade that moves the fovea away from the cross fixation, followed by a second saccade in the opposite direction to refoveate the fixation) within 200 ms, with amplitudes between 0.1° and 5° | ||
Prosaccade | Gain, latency, and peak velocity of correct saccades | Errors | Anticipation rate making a saccade during the fixation period, prior to the presentation of the target dot or within 80 ms of its presentation |
Prosaccade error saccade in the opposite direction of the peripheral stimulus | |||
Antisaccade | Gain, latency, and peak velocity of correct saccades | Errors | Corrected error rate looking at the target, then looking at the correct location at the mirror image of the target |
Latency of the correction saccade how long it took to make a saccade in the correct direction following the incorrect saccade | |||
Uncorrected error rate looking at, instead of away from, the target | |||
Anticipation rate making a saccade during the fixation period, prior to the presentation of the target dot or within 80 ms of its presentation | |||
Memory-guided saccade | Gain, latency, and peak velocity of correct saccades | Errors | Inhibitory errors Looking at the dot when it was presented or making a saccade before the response period |
Directional errors Looking in the wrong direction to where the stimulus had been presented during the response time | |||