Table 2.

Instructions and visual stimuli for each task.

Instructional prompt	Visual stimulus
Pupil calibration task: “A cross will appear in the middle of the screen. Please fixate your eyes on the cross. Do not look away from it. This will take about 10 s.”
Picture description task: “You will be shown a picture on the screen. Describe everything you see going on in this picture. Try not to look away from the screen while describing the picture.”
Reading task: “You will be shown a paragraph on the screen. Please read the paragraph out loud.”
Memory description task: “Please recall a positive life event. Some examples are listed here: Your first job, how you met your best friend, a place you have traveled, your favorite teacher, your first pet, or the birth of your first child.”