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Comparative Study
. 2008 Apr;11(4):426-8.
doi: 10.1038/nn2072. Epub 2008 Mar 23.

The evolution of the arcuate fasciculus revealed with comparative DTI

James K Rilling  1 , Matthew F Glasser, Todd M Preuss, Xiangyang Ma, Tiejun Zhao, Xiaoping Hu, Timothy E J Behrens
Affiliations
Comparative Study

The evolution of the arcuate fasciculus revealed with comparative DTI

James K Rilling et al. Nat Neurosci. 2008 Apr.

Abstract

The arcuate fasciculus is a white-matter fiber tract that is involved in human language. Here we compared cortical connectivity in humans, chimpanzees and macaques (Macaca mulatta) and found a prominent temporal lobe projection of the human arcuate fasciculus that is much smaller or absent in nonhuman primates. This human specialization may be relevant to the evolution of language.

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