Figure 2
From: Arousal-based pupil modulation is dictated by luminance
Experimental design. (a) Example luminance sequence for a Hard block. Participants viewed 10 different luminances presented pseudorandomly for 60 s each. (b) While viewing the luminances, participants simultaneously listened to and carried out solving back-to-back auditory math problems, indicating on a keyboard whether the problem given was true or false. Accuracy on the math problems were given at the end of the block.
