have as aftereffect

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• aftereffect —    Also known as aftersensation and perceptual aftereffect. All three terms refer to the illusory visual perception that may follow prolonged exposure to a particular visual stimulus. As a rule, aftereffects present themselves in the inverted… …   Dictionary of Hallucinations

• Contingent perceptual aftereffect — Contingent aftereffects are studied in human perception and can be defined as illusory percepts that are apparent on a test stimulus after exposure to an induction stimulus for an extended period. Contingent aftereffects can be contrasted with… …   Wikipedia

• reverberate — I (New American Roget s College Thesaurus) v. i. reecho, respond, be reflected. See sound, loudness, recoil. II (Roget s IV) v. Syn. resound, echo, reflect; see reflect 2 , sound 1 . III (Roget s 3 Superthesaurus) v. echo, reecho, resound,… …   English dictionary for students

• McCollough effect — (click to enlarge) A test image for the McCollough effect. On first looking at this image, the vertical and horizontal lines should look black and white, colourless. After induction (see images below), the horizontal lines should look greenish… …   Wikipedia

• Akinetopsia — Akinetopsia, also known as cerebral akinetopsia or motion blindness, is an extremely rare neuropsychological disorder in which a patient cannot perceive motion in their visual field, despite being able to see stationary objects without issue. For …   Wikipedia

• movement perception — ▪ process Introduction       process through which humans and other animals orient themselves to their own or others physical movements. Most animals, including humans, move in search of food that itself often moves; they move to avoid predators… …   Universalium

• perception — perceptional, adj. /peuhr sep sheuhn/, n. 1. the act or faculty of apprehending by means of the senses or of the mind; cognition; understanding. 2. immediate or intuitive recognition or appreciation, as of moral, psychological, or aesthetic… …   Universalium

• effect — n 1 Effect, result, consequence, upshot, aftereffect, aftermath, sequel, issue, outcome, event are comparable in signifying something, usually a condition, situation, or occurrence, ascribable to a cause or combination of causes. Effect is the… …   New Dictionary of Synonyms

• Motion perception — The dorsal stream (green) and ventral stream (purple) are shown. They originate from a common source in visual cortex. The dorsal stream is responsible for detection of location and motion. Motion perception is the process of inferring the speed… …   Wikipedia

• 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

• Optical illusion — This article is about visual perception. For the Time Requiem album, see Optical Illusion (album). An optical illusion. The square A is exactly the same shade of gray as square B. See checker shadow illusion. An optical illusion (also called a… …   Wikipedia