Fig. 9
From: Eyes on hold: motion task difficulty jointly delays microsaccade and pupil responses
Average difference in pupil area for each observer. (a) Pupil area is larger for oblique than cardinal motion directions (b) and for smaller than larger tilt magnitudes. Opaque dots represent the average; transparent dots are data for each observer. Error bars are the standard error of the mean. Unfilled dots represent the amplitude of the stimulus boxcar for each observer which has fixed and sustained event timing to reflect the stimulus period.
