Hering image

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The first afterimage in the sequence of afterimages that follow brief exposure to a bright light, a positive afterimage provided that the original stimulus was lighter than its surroundings, otherwise a negative afterimage (1), usually appearing in the same colour as the original stimulus but sometimes colourless, persisting for only about 50 milliseconds. Also called a Hering afterimage. Compare Hess image, Purkinje image. [Named after the German psychologist and physiologist Ewald Hering (1834–1918) who first reported it]

Subjects: Psychology.

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