Brain networks supporting perceptual grouping and contour selection.
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ABSTRACT:
SUBMITTER: Volberg G
PROVIDER: S-EPMC3983489 | biostudies-literature | 2014
REPOSITORIES: biostudies-literature
Publications
Brain networks supporting perceptual grouping and contour selection.
Volberg Gregor G Greenlee Mark W MW
Frontiers in psychology 20140404
The human visual system groups local elements into global objects seemingly without effort. Using a contour integration task and EEG source level analyses, we tested the hypothesis that perceptual grouping requires a top-down selection, rather than a passive pooling, of neural information that codes local elements in the visual image. The participants were presented visual displays with or without a hidden contour. Two tasks were performed: a central luminance-change detection task and a periphe ...[more]
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