Pupillary light reflex (PLR)¶
Overview¶
The pupillary light reflex task measures the response of the pupil to intermittent flashes of light on a dark screen.
The task consists of 2 blocks of 32 trials each. In each trial, the fixation is presented for 6 seconds on a black
background. After 6 seconds, the screen flashes white for ``75``ms. The participant must gaze at the fixation cross
to trigger the trial.
The table below shows event codes for EGI Net-Station acquisition, and DIN events triggered by the photo-diode on the screen for each event. ———————— ——–
Condition
|
plro |
|
VBeg TSYN DIN2 DIN3 DIN4 |