The neural basis of visual symmetry and its role in mid- and high-level visual processing

Bertamini, Marco ORCID: 0000-0001-8617-6864, Silvanto, Juha, Norcia, Anthony M, Makin, Alexis DJ ORCID: 0000-0002-4490-7400 and Wagemans, Johan
(2018) The neural basis of visual symmetry and its role in mid- and high-level visual processing. ANNALS OF THE NEW YORK ACADEMY OF SCIENCES, 1426 (01). pp. 111-126.

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Symmetry is an important and prominent feature of the visual world. It has been studied as a basis for image segmentation and perceptual organization, but it also plays a role in higher level processes, such as face and object perception. Over the past decade, there has been progress in the study of the neural mechanisms of symmetry perception in humans and other animals. There is extended activity in the ventral stream, including the lateral occipital complex (LOC) and VO1; this activity starts in V3 and it occurs independently of the task (automatic response). Additionally, when the task requires processing of symmetry, the activation may emerge for objects that are symmetrical, even though they do not project a symmetrical image. There is also some evidence of hemispheric lateralization, especially for the LOC. We review the studies on the cortical basis of visual symmetry processing and its links to encoding of other aspects of the visual world, such as faces and objects.

Item Type: Article
Additional Information: Special Issue: The Year in Cognitive Neuroscience
Uncontrolled Keywords: symmetry, regularity, LOC, fMRI, EEG, TMS
Depositing User: Symplectic Admin
Date Deposited: 04 May 2018 09:26
Last Modified: 19 Jan 2023 06:34
DOI: 10.1111/nyas.13667
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