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Rapid visual grouping and figure–ground processing using temporally structured displays

Cheadle, Samuel and Usher, Marius and Muller, Hermann J. (2010) Rapid visual grouping and figure–ground processing using temporally structured displays. Vision Research 50 (18), pp. 1803-1813. ISSN 00426989.

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Official URL: http://dx.doi.org/10.1016/j.visres.2010.06.001

Abstract

We examine the time course of visual grouping and figure–ground processing. Figure (contour) and ground (random-texture) elements were flickered with different phases (i.e., contour and background are alternated), requiring the observer to group information within a pre-specified time window. It was found this grouping has a high temporal resolution: less than 20 ms for smooth contours, and less than 50 ms for line conjunctions with sharp angles. Furthermore, the grouping process takes place without an explicit knowledge of the phase of the elements, and it requires a cumulative build-up of information. The results are discussed in relation to the neural mechanism for visual grouping and figure–ground segregation.

Item Type: Article
Keyword(s) / Subject(s): Visual grouping, figure ground, temporal structure
School or Research Centre: Birkbeck Schools and Research Centres > School of Science > Psychological Sciences
Depositing User: Administrator
Date Deposited: 25 Jul 2011 11:28
Last Modified: 17 Apr 2013 12:21
URI: http://eprints.bbk.ac.uk/id/eprint/3840

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