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Symmetry 2010, 2(3), 1510-1543; doi:10.3390/sym2031510

Behind the Looking-Glass: A Review on Human Symmetry Perception

Machine Learning Laboratory, Berlin Institute of Technology, Franklinstr. 28/29, Berlin, Germany
Received: 25 June 2010 / Revised: 13 July 2010 / Accepted: 19 July 2010 / Published: 22 July 2010
(This article belongs to the Special Issue Feature Papers: Symmetry Concepts and Applications)
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The human visual system is highly proficient in extracting bilateral symmetry from visual input. This paper reviews empirical and theoretical work on human symmetry perception with a focus on recent issues such as its neural underpinnings. Symmetry detection is shown to be a versatile, ongoing visual process that interacts with other visual processes. Evidence seems to converge towards the idea that  symmetry detection is subserved by a preprocessing stage involving spatial filters followed by information integration across the visual field in higher-tier cortical areas.
Keywords: symmetry processing; perception; vision; visual organization; perception models; review symmetry processing; perception; vision; visual organization; perception models; review

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Treder, M.S. Behind the Looking-Glass: A Review on Human Symmetry Perception. Symmetry 2010, 2, 1510-1543.

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