Encyclopedia of Clinical Neuropsychology

2018 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan

Extrastriate

  • Ronald A. CohenEmail author
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-57111-9_1362

Synonyms

Broadmann areas 18, 19; Heterotypic visual cortex; Secondary visual cortex; V2, V3, V4, V5

Definition

The extrastriate cortex refers to occipital cortical areas found anterior to the striate cortex (i.e., primary visual cortex), corresponding to visual areas 2, 3, 4, and 5 in primates. The extrastriate consists of heterotypic cortical neurons that may respond to different types of inputs relative to the primary visual information arising from the primary visual cortex. Accordingly, it plays an essential role in mid-level visual processing or what neuropsychologists often refer to as visual integration. Extrastriatal neurons tend to respond to visual stimuli within receptive fields, with these responses modulated by other cognitive processes, such as motivational signals, attention, working memory, and response demands.

Cross-References

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Clinical and Health Psychology, College of Public Health and Health ProfessionsUniversity of FloridaGainesvilleUSA