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Purkinje shift

the changes in perception of the relative lightness and darkness of different colors as illumination changes from daylight to twilight.
Origin of Purkinje shift
First recorded in 1970-75; See origin at Purkinje fiber Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Purkinje shift in Medicine

Purkinje shift n.
The change in the eye's region of maximal visual acuity as a function of availability of light; in the light-adapted eye the region is in the yellow range whereas in the dark-adapted eye the region is in the green range of the color spectrum.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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