Arrangement of orientation pinwheel centers around area 17/18 transition zone in cat visual cortex

Kenichi Ohki, Yoshitaka Matsuda, Ayako Ajima, Dae Shik Kim, Shigeru Tanaka

研究成果: ジャーナルへの寄稿学術誌査読

33 被引用数 (Scopus)

抄録

In the primary visual cortex of higher mammals, orientation preferences are represented continuously except for singular points, so-called pinwheel centers. In spite of the uniqueness of orientation pinwheel centers, very little is known about the pattern of their arrangement. In this study we examined the arrangement of orientation pinwheel centers in the cat visual cortex by optical imaging of intrinsic signals. Our results demonstrate that orientation pinwheel centers are arranged in a unique geometric pattern around the area 17/18 transition zone: pinwheel centers of the same type are arranged in rows parallel to the transition zone, and rows of clockwise and counterclockwise pinwheel centers are arranged alternately. We suggest that the areal border imposes a strong restriction on the pattern formation of orientation preference maps in the visual cortex.

本文言語英語
ページ(範囲)593-601
ページ数9
ジャーナルCerebral Cortex
10
6
DOI
出版ステータス出版済み - 6月 2000

!!!All Science Journal Classification (ASJC) codes

  • 認知神経科学
  • 細胞および分子神経科学

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