Visual Cortical Models of Orientation Tuning

Research output: Chapter in Book/Report/Conference proceedingEntry for encyclopedia/dictionary

Abstract

The primary visual cortex V1 finds local stimulus features in the neural image of the visual scene sent to V1 from the retina. There are various computational models for V1 that seek to explain its visual functions in terms of its architecture and connections. The feed-forward model simply uses the pattern of inputs to the cortex; while this model explains orientation preference, it cannot explain orientation selectivity. Recurrent excitation models account for selectivity but do not explain how there are both simple and complex cells in V1. Models that include strong corticocortical inhibition explain most of the important functions of V1, such as feature selectivity, and also the diverse populations of simple and complex cells.

Original languageEnglish (US)
Title of host publicationEncyclopedia of Neuroscience
PublisherElsevier Ltd
Pages269-275
Number of pages7
ISBN (Print)9780080450469
DOIs
StatePublished - 2009

Keywords

  • Complex cells
  • Egalitarian model
  • Feed-forward model
  • Inhibition
  • Lateral geniculate nucleus
  • Orientation pinwheels
  • Orientation selectivity
  • Recurrent excitation
  • Simple cells
  • Visual cortex

ASJC Scopus subject areas

  • Neuroscience(all)

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  • Cite this

    Shapley, R. (2009). Visual Cortical Models of Orientation Tuning. In Encyclopedia of Neuroscience (pp. 269-275). Elsevier Ltd. https://doi.org/10.1016/B978-008045046-9.01414-5