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Cortex. 2013 Jan;49(1):200-10. doi: 10.1016/j.cortex.2011.11.002. Epub 2011 Nov 19.

Hemispheric asymmetries of cortical volume in the human brain.

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  • 1New York University School of Medicine, New York, NY, USA. elkhonon.goldberg@nyumc.org

Abstract

Hemispheric asymmetry represents a cardinal feature of cerebral organization, but the nature of structural and functional differences between the hemispheres is far from fully understood. Using Magnetic Resonance Imaging morphometry, we identified several volumetric differences between the two hemispheres of the human brain. Heteromodal inferoparietal and lateral prefrontal cortices are more extensive in the right than left hemisphere, as is visual cortex. Heteromodal mesial and orbital prefrontal and cingulate cortices are more extensive in the left than right hemisphere, as are somatosensory, parts of motor, and auditory cortices. Thus, heteromodal association cortices are more extensively represented on the lateral aspect of the right than in the left hemisphere, and modality-specific cortices are more extensively represented on the lateral aspect of the left than in the right hemisphere. On the mesial aspect heteromodal association cortices are more extensively represented in the left than right hemisphere.

Copyright © 2011 Elsevier Ltd. All rights reserved.

PMID:
22176871
[PubMed - indexed for MEDLINE]
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