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afterimage

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Afterimage
Research & read articles from the journal Afterimage.
www.questia.com

af⋅ter⋅im⋅age

  [af-ter-im-ij, ahf-]
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–noun Psychology.
a visual image or other sense impression that persists after the stimulus that caused it is no longer operative.
Origin:
1875–80; trans. of G Nachbild; see after, image
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Afterimage
Research & read articles from the journal Afterimage.
www.questia.com
af·ter·im·age   (āf'tər-ĭm'ĭj)   
n.  A visual image that persists after the visual stimulus causing it has ceased to act. Also called photogene.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: af·ter·im·age
Pronunciation: -"rim-ij
Function: noun
: a usually visual sensation occurring after stimulation by itsexternal cause has ceased called also aftersensation, aftervision
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

afterimage af·ter·im·age (āf'tər-ĭm'ĭj)
n.
A visual image that persists after the visual stimulus causing it has ceased to act. Also called photogene.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia

afterimage

visual illusion in which retinal impressions persist after the removal of a stimulus, believed to be caused by the continued activation of the visual system. The afterimage may be positive, corresponding in colour or brightness to the original image, or negative, being less bright or of colours complementary to the original. A common afterimage is the spot of light one sees after a camera flash has been fired. The afterimage is the most readily observed of the class of phenomena known as aftersensations, or aftereffects.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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