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Home > News & Topics > Pupillary Response to Glare Illusions of Different Colors

Pupillary Response to Glare Illusions of Different Colors

08 Aug 2019


A blue glare illusion was perceived to be brightest and caused larger pupil constriction

Toyohashi University of Technology researchers in cooperation with researchers at the University of Oslo measured people's perceived brightness and pupillary response after viewing glare illusions presented in a variety of different colors. A glare illusion is an optical illusion that has a luminance gradient towards the center and is perceived as brighter by the gradient. The research team found that pupil reduction for glare illusion occurs according to the degree of brightness perception.

Full text: Pupillary Response to Glare Illusions of Different Colors
TUT website: Press release

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