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Title: Searching for Radial Symmetry
Authors: Jennings, BJ
Kingdom, FAA
Keywords: Mirror;radial;spatial vision;symmetry;visual search
Issue Date: 2017
Publisher: SAGE Publications
Citation: i-Perception, 2017, 8 (4), pp. 204166951772575 - 204166951772575
Abstract: Symmetry is ubiquitous in the natural world. Numerous investigations, dating back over one hundred years, have explored the visual processing of symmetry. However, these studies have been concerned with mirror symmetry, overlooking radial (or rotational) symmetry, which is also prevalent in nature. Using a visual search paradigm, which approximates the everyday task of searching for an object embedded in background clutter, we have measured how quickly and how accurately human observers detect radially symmetric dot patterns. Performance was compared with mirror symmetry. We found that with orders of radial symmetry greater than 5, radial symmetry can be detected more easily than mirror symmetry, revealing for the first time that radial symmetry is a salient property of objects for human vision.
ISSN: 2041-6695
Appears in Collections:Dept of Life Sciences Research Papers

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