retinal painting

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An explanation of anorthoscopic perception in terms of a hypothetical process by which the extended image of a figure viewed through a moving slit is gradually spread over the retina and imprinted on to it part by part, resulting in a retinal imprint of the whole figure whose form is then perceived. This hypothesis was championed by the German physiologist, physicist, and mathematician Hermann Ludwig Ferdinand von Helmholtz (1821–94) and other 19th-century researchers, but it was subsequently discredited by studies of eye movements that occur during anorthoscopic perception and that would disrupt the process.

Subjects: Psychology.

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