Chapter

How Are the Features of Objects Integrated into Perceptual Wholes That Are Selected by Attention?

John H. Reynolds

in 23 Problems in Systems Neuroscience

Published in print January 2006 | ISBN: 9780195148220
Published online May 2009 | e-ISBN: 9780199864676 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780195148220.003.0020

Series: Computational Neuroscience Series

 How Are the Features of Objects Integrated into Perceptual Wholes That Are Selected by Attention?

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This chapter outlines recent progress in our understanding of how the brain compensates for the limited capacity of the visual system, and emphasizes limitations of this understanding. Competitive selection mechanisms have been identified in extrastriate visual cortex that can be biased in favor of behaviorally relevant stimuli. These mechanisms subserve selection by ensuring that neurons that encode features of behaviorally relevant stimuli remain active and are, therefore, able to transmit information about the selected stimulus to other areas of the brain associated with behavioral control.

Keywords: brain; visual system; neurons; visual cortex; selection mechanisms

Chapter.  6611 words.  Illustrated.

Subjects: Neuroscience

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