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

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.
Publisher
OXFORD UNIV PRESS INC
Issue Date
2000-06
Language
ENG
Keywords

OCULAR-DOMINANCE COLUMNS; MONKEY STRIATE CORTEX; FUNCTIONAL-ORGANIZATION; SELF-ORGANIZATION; FLAT-MOUNTS; FIELD MAP; SINGULARITIES; PATTERNS; SELECTIVITY; PREFERENCE

Citation

CEREBRAL CORTEX, v.10, no.6, pp.593 - 601

ISSN
1047-3211
DOI
10.1093/cercor/10.6.593
URI
http://hdl.handle.net/10203/73525
Appears in Collection
EE-Journal Papers(저널논문)
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