Pupil adjustments to illusory perceptions of the light intensity of object surfaces

Using infrared eye tracking, we show that when gaze is maintained at the center of one of two equiluminant surfaces of a Cornsweet stimulus, designed by Lotto and Purves, that illusorily appear to be lighter or darker than the other, the eye pupils constrict or dilate, respectively. That is, pupil s...

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Bibliographic Details
Main Authors: Bruno Laeng, Hüseyin Berke Canoluk, Shoaib Nabil
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-08-01
Series:Frontiers in Human Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fnhum.2025.1604114/full
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