Detailed analysis of orientation preference map in visual cortex

Tsuyoshi Okamoto, Koji Ikezoe, Hiroshi Tamura, Masataka Watanabe, Kazuyuki Aihara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Mammalian primary visual cortex (V1) contains a functional map of orientation preference. Within the orientation preference map, neurons aggregate in two different local patterns. Neurons with similar orientation preferences gather within orientation domains, whereas neurons with all different orientation preferences converge at the center of pinwheel-like arrangements of orientation domains. The differences in local organization of domains and pinwheels have been the subject of considerable controversy. Here, we focus on the differences in global organizations of domains and pinwheels. We analyzed the spatial distribution of orientation preferences in wide regions around domains and pinwheels in monkey V1. A particular distribution pattern of orientation preferences was found more clearly in the regions around domains than in the regions around pinwheels. This suggests that neuronal responses to large stimuli outside of a neuron's receptive field can vary between domains and pinwheels.

Original languageEnglish
Title of host publication2010 IEEE/ICME International Conference on Complex Medical Engineering, CME2010
Pages151-155
Number of pages5
DOIs
Publication statusPublished - 2010
Event2010 IEEE/ICME International Conference on Complex Medical Engineering, CME2010 - Gold Coast, QLD, Australia
Duration: Jul 13 2010Jul 15 2010

Publication series

Name2010 IEEE/ICME International Conference on Complex Medical Engineering, CME2010

Other

Other2010 IEEE/ICME International Conference on Complex Medical Engineering, CME2010
CountryAustralia
CityGold Coast, QLD
Period7/13/107/15/10

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging
  • Neuroscience(all)

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