- negative afterimage
- Also known as Purkinje afterimage. The adjective negative refers to the fact that the colours of this type of * afterimage are complementary to the colours of the primary stimulus. The term negative afterimage is used in opposition to *positive afterimage, a term that is reserved for duplicate images that have the same relative brightness relations as the perceived object or stimulus. The negative afterimage is usually classified as a * physiological illusion.ReferencesBrown, J.L. (1965). Afterimages.In: Vision and visual perception. Edited by Graham, C.H. New York, NY: Wiley.
Dictionary of Hallucinations. J.D. Blom. 2010.
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negative afterimage — n a visual afterimage in which light portions of the original sensation are replaced by dark portions and dark portions are replaced by light portions compare POSITIVE AFTERIMAGE * * * an afterimage in which the brights and darks are reversed… … Medical dictionary
negative afterimage — neigiamasis povaizdis statusas T sritis fizika atitikmenys: angl. negative afterimage vok. negatives Nachbild, n rus. отрицательное послеизображение, n; отрицательный последовательный образ, m pranc. postimage négative, f … Fizikos terminų žodynas
negative afterimage — noun 1. : complementary afterimage 2. : a visual afterimage in which light portions of the original sensation are replaced by dark portions and dark portions are replaced by light portions opposed to positive afterimage … Useful english dictionary
Afterimage — For other uses, see Afterimage (disambiguation). If the viewer stares at this image for 20 60 seconds and stares at a white object a negative afterimage will appear (in this case being cyan on magenta). This can also be achieved by the viewer… … Wikipedia
afterimage — Also referred to as aftersensation, afterimagery, and post image. All three terms are used to denote a group of visual percepts that occur in response to a primary light stimulus to the eye, typically noticed after the stimulus has been… … Dictionary of Hallucinations
negative image — afterimage … Medical dictionary
afterimage — /af teuhr im ij, ahf /, n. Psychol. a visual image or other sense impression that persists after the stimulus that caused it is no longer operative. [1875 80; trans. of G Nachbild; see AFTER, IMAGE] * * * ▪ psychology visual illusion in… … Universalium
afterimage — Persistence of a visual response after cessation of the stimulus. SYN: accidental image, negative image. negative a. a. in which the lightness relationship is reversed; if chromatic, it appears in complementary color. positive a. a. in which the… … Medical dictionary
afterimage — noun An image which persists or remains in negative after the original stimulation has ended. , Syn: photogene … Wiktionary
afterimage — noun an image (usually a negative image) that persists after stimulation has ceased • Syn: ↑aftersensation • Hypernyms: ↑memory image • Hyponyms: ↑aftertaste … Useful english dictionary