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Hum Brain Mapp. 2006 Oct;27(10):828-35.

Hand preference and sex shape the architecture of language networks.

Author information

1
Signal Processing Institute, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland. patric.hagmann@epfl.ch

Abstract

In right-handed subjects, language processing relies predominantly on left hemisphere networks, more so in men than in women, and in right- versus left-handers. Using DT-MRI tractography, we have shown that right-handed men are massively interconnected between the left-hemisphere language areas, whereas the homologous in the right hemisphere are sparse; interhemispheric connections between the language areas and their contralateral homologues are relatively strong. Women and left-handed men have equally strong intrahemispheric connections in both hemispheres, but women have a higher density of interhemispheric connections.

PMID:
16541458
DOI:
10.1002/hbm.20224
[Indexed for MEDLINE]

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