Psychiatry & psychology (10 pages found in this category)


Artificial Scotoma

Perceptual illusion in which an artificial blind spot is filled in by a twinkling background.

Brocken spectre

Optical illusion in which the apparently greatly magnified shadow of an observer, when projected onto a surrounding mist, interferes with the observer's depth perception.

Checker shadow illusion

Perceptual illusion demonstrating that the visual system uses context as well as physical luminance to determine the lightness or darkness of an object.

Fantascope

Redirected to phenakistoscope.

Grey Man

Redirected to Brocken spectre.

Orgone

Widely discredited theory of universal life energy developed by the Austrian psychiatrist Wilhelm Reich (1897–1957).

Orgonomy

Redirected to orgone.

Phantasmascope

Redirected to phenakistoscope.

Phenakistoscope

Optical toy producing the illusion of moving images, popular during the Victorian era.

Troxler Effect

Perceptual illusion in which an image in peripheral vision disappears.