Bezold-Brücke phenomenon

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The shift in hue with a change in the physical intensity of illumination, objects and images appearing relatively red or green in dim light and relatively blue or yellow in bright light, the psychological primary colours themselves being largely unaffected. See also Purkinje shift. [Named after the German meteorologist Wilhelm von Bezold (1837–1907), who described it briefly in 1873, and the German physiologist Ernst Wilhelm von Brücke (1819–92) who studied it thoroughly in 1878]

Subjects: Psychology.

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