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Purkinje's phenomenon
Also known as:
Purkinje's effect
Purkinje's shift
Associated persons:
Jan Evangelista Purkyně
Description:
A phenomenon of adaptation of the pupil of the eye to light intensity. As light intensity decreases and the eyes become scotopic, red-yellow objects are perceived to fade faster than blue/green objects of the same brightness - the reds become less luminous, the blues more luminous. 1825.
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