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| [[Image:Kanizsa.jpg|thumb|right|225px|'''Kanizsa triangle''']]
 
| [[Image:Kanizsa.jpg|thumb|right|225px|'''Kanizsa triangle''']]
The '''Kanizsa triangle''' is a famous [[optical illusion]] that was first described by the Italian psychologist [[Gaetano Kanizsa]] in [[1955]]. In this figure we "see" a white [[equilateral triangle]] but in fact none is drawn. This effect is known as a ''subjective'' or ''illusory'' contour. Also the nonexistent white triangle appears to be brighter than the surrounding area. In fact it has the same brightness as the background.
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The '''Kanizsa triangle''' is a famous [[optical illusion]] that was first described by the Italian psychologist Gaetano Kanizsa] in 1955. In this figure we "see" a white equilateral triangle but in fact none is drawn. This effect is known as a ''subjective'' or ''illusory'' contour. Also the nonexistent white triangle appears to be brighter than the surrounding area. In fact it has the same brightness as the background.
   
 
Another contour illusion is the [[Ehrenstein illusion|Ehrilich illusion (2)]].
 
Another contour illusion is the [[Ehrenstein illusion|Ehrilich illusion (2)]].

Latest revision as of 05:31, April 12, 2006

Kanizsa
Kanizsa triangle
LifeartistAdded by Lifeartist

The Kanizsa triangle is a famous optical illusion that was first described by the Italian psychologist Gaetano Kanizsa] in 1955. In this figure we "see" a white equilateral triangle but in fact none is drawn. This effect is known as a subjective or illusory contour. Also the nonexistent white triangle appears to be brighter than the surrounding area. In fact it has the same brightness as the background.

Another contour illusion is the Ehrilich illusion (2).

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