Expectation (and attention) in visual cognition.

Published

Journal Article (Review)

Visual cognition is limited by computational capacity, because the brain can process only a fraction of the visual sensorium in detail, and by the inherent ambiguity of the information entering the visual system. Two mechanisms mitigate these burdens: attention prioritizes stimulus processing on the basis of motivational relevance, and expectations constrain visual interpretation on the basis of prior likelihood. Of the two, attention has been extensively investigated while expectation has been relatively neglected. Here, we review recent work that has begun to delineate a neurobiology of visual expectation, and contrast the findings with those of the attention literature, to explore how these two central influences on visual perception overlap, differ and interact.

Full Text

Duke Authors

Cited Authors

  • Summerfield, C; Egner, T

Published Date

  • September 2009

Published In

Volume / Issue

  • 13 / 9

Start / End Page

  • 403 - 409

PubMed ID

  • 19716752

Pubmed Central ID

  • 19716752

Electronic International Standard Serial Number (EISSN)

  • 1879-307X

International Standard Serial Number (ISSN)

  • 1364-6613

Digital Object Identifier (DOI)

  • 10.1016/j.tics.2009.06.003

Language

  • eng