Somatotopic organization and columnar structure of vibrissae representation in the rat ventrobasal complex.

Somatotopic organization and columnar structure of vibrissae representation in the rat ventrobasal complex. Research Abstract Details 

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Somatotopic organization and columnar structure of vibrissae representation in the rat ventrobasal complex. Abstract Text:

M Sugitani,J Yano,T Sugai,H Ooyama,

The region of vibrissae representation in the ventrobasal complex (VB) of the rat was systematically mapped, based on receptive fields of many single neurons. Results showed that the ventralmost row of vibrissae projected to the rostral part of VB, that the dorsal-most row projected to the caudal part, and that the caudalmost vibrissae of each row projected to the most dorsolateral part of VB and more rostral vibrissae to the more ventromedial part. Further, it was revealed that the clusters of neurons receiving projections from any individual vibrissae formed corresponding columns extending from the anterodorsomedial to the posteroventrolateral direction, and that these columns piled up dorsoventrally and anteroposteriorly, with ventral ones shifted progressively medially. When cross sections of these columns were viewed on an oblique horizontal section of VB, a group of columns corresponding to each row lined up from the dorsolateral to the ventromedial direction with a rostral convexity, which means that the third or fourth vibrissa in each row projected most rostrally in that row. These results confirmed previous physiological mapping studies of vibrissal representation and are in good agreement with anatomical studies on barreloid structure in VB.

Somatotopic organization and columnar structure of vibrissae representation in the rat ventrobasal complex. Publishing Authors By Initials

M Sugitani,J Yano,T Sugai,H Ooyama,

For similar animal structures: vibrissae research abstracts see: animal structures: vibrissae research

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Somatotopic organization and columnar structure of vibrissae representation in the rat ventrobasal complex. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Experimental brain research. Experimentelle Hirnfo

VOLUME: 81

Page Numbers: 346-52

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ISSN: 0014-4819

DAY: 15

MONTH: 02

YEAR: 1990

Somatotopic organization and columnar structure of vibrissae representation in the rat ventrobasal complex. Information

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LANGUAGE: eng

NlmUniqueID: 43312

Somatotopic organization and columnar structure of vibrissae representation in the rat ventrobasal complex. Keywords Mesh Terms:

KEYWORDS: Vibrissae

MESH TERMS: innervation

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Grant and Affiliation Information for Somatotopic organization and columnar structure of vibrissae representation in the rat ventrobasal complex.

AFFILIATION: Department of Physiology, Kanazawa Medical University, Ishikawa, Japan.

Country: GERMANY, WEST

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MEDLINETA: Exp Brain Res

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