Kanizsa triangle

|

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.

Another contour illusion is the Ehrenstein illusion(2).

Credits

New World Encyclopedia writers and editors rewrote and completed the Wikipedia article in accordance with New World Encyclopedia standards. This article abides by terms of the Creative Commons CC-by-sa 3.0 License (CC-by-sa), which may be used and disseminated with proper attribution. Credit is due under the terms of this license that can reference both the New World Encyclopedia contributors and the selfless volunteer contributors of the Wikimedia Foundation. To cite this article click here for a list of acceptable citing formats.The history of earlier contributions by wikipedians is accessible to researchers here:

• Kanizsa_triangle  ^history

The history of this article since it was imported to New World Encyclopedia:

• History of "Kanizsa triangle"

Note: Some restrictions may apply to use of individual images which are separately licensed.