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Interhemispheric asymmetries of the modular structure in human temporal cortex.

Galuske, Ralf A. W. and Schlote, W. and Bratzke, H. and Singer, W. (2000):
Interhemispheric asymmetries of the modular structure in human temporal cortex.
In: Science (New York, N.Y.), pp. 1946-9, 289, (5486), ISSN 0036-8075, [Article]

Abstract

Language-relevant processing of auditory signals is lateralized and involves the posterior part of Brodmann area 22. We found that the functional lateralization in this area was accompanied by interhemispheric differences in the organization of the intrinsic microcircuitry. Neuronal tract tracing revealed a modular network of long-range intrinsic connections linking regularly spaced clusters of neurons. Although the cluster diameter was similar in both hemispheres, their spacing was about 20 percent larger in the left hemisphere. Assuming similar relations between functional and anatomical architecture as in visual cortex, the present data suggest that more functionally distinct columnar systems are included per surface unit in the left than in the right area 22.

Item Type: Article
Erschienen: 2000
Creators: Galuske, Ralf A. W. and Schlote, W. and Bratzke, H. and Singer, W.
Title: Interhemispheric asymmetries of the modular structure in human temporal cortex.
Language: English
Abstract:

Language-relevant processing of auditory signals is lateralized and involves the posterior part of Brodmann area 22. We found that the functional lateralization in this area was accompanied by interhemispheric differences in the organization of the intrinsic microcircuitry. Neuronal tract tracing revealed a modular network of long-range intrinsic connections linking regularly spaced clusters of neurons. Although the cluster diameter was similar in both hemispheres, their spacing was about 20 percent larger in the left hemisphere. Assuming similar relations between functional and anatomical architecture as in visual cortex, the present data suggest that more functionally distinct columnar systems are included per surface unit in the left than in the right area 22.

Journal or Publication Title: Science (New York, N.Y.)
Volume: 289
Number: 5486
Divisions: 10 Department of Biology > Systems Neurophysiology
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10 Department of Biology
Date Deposited: 21 Feb 2012 13:18
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