Dictionary of Hallucinations. J.D. Blom. 2010.
illusion of the pierced hand — Also known as hole in the hand. Both terms refer to a binocular illusion that can be induced by holding a small tube in front of one eye with one hand, while the palm of the other hand is placed with the ulnar edge touching the tube about 20… … Dictionary of Hallucinations
Binocular rivalry — is a phenomenon of visual perception in which perception alternates between different images presented to each eye. When one image is presented to one eye and a very different image is presented to the other, instead of the two images being seen… … Wikipedia
floating-finger illusion — A term introduced in or shortly before 1928 by the American psychologist Winford Lee Sharp (1890 1975) to denote a *visual illusion that can be induced by placing the index fingers of each hand horizontally in front of the eyes, at a distance… … Dictionary of Hallucinations
Visual Angle Illusion — The visual angle, V degrees, subtended by a viewed object sometimes looks larger or smaller than its actual value, creating a visual angle illusion (V illusion).These V illusions have been explicitly described by many vision researchers,… … Wikipedia
Barberpole illusion — The barberpole illusion is a visual illusion that reveals biases in the processing of visual motion in the human brain. When a diagonally striped pole is rotated around its vertical axis (horizontally), it appears as though the stripes are moving … Wikipedia
Stereoscopy — Stereoscopy, stereoscopic imaging or 3 D (three dimensional) imaging is any technique capable of recording three dimensional visual information or creating the illusion of depth in an image. The illusion of depth in a photograph, movie, or other… … Wikipedia
eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… … Universalium
Depth perception — is the visual ability to perceive the world in three dimensions (3D) and the distance of an object. Depth sensation is the ability to move accurately, or to respond consistently, based on the distances of objects in an environment.[citation… … Wikipedia
Autostereogram — An autostereogram is a single image stereogram (SIS), designed to create the visual illusion of a three dimensional (3D) scene from a two dimensional image in the human brain. In order to perceive 3D shapes in these autostereograms, the brain… … Wikipedia
Ibn al-Haytham — Infobox Muslim scholars | notability = Muslim scientist| era = Islamic Golden Age| color = #cef2e0 | | image caption = Ibn al Haytham drawing taken from a 1982 Iraqi 10 dinar note. | | name = Unicode|Abū ‘Alī al Ḥasan ibn al Ḥasan ibn al Haytham… … Wikipedia
