Rilling, J. K. et al. The evolution of the arcuate fasciculus revealed with comparative DTI. Nature Neurosci. 11, 426-428

Department of Anthropology, Emory University, 207 Anthropology Building, 1557 Dickey Drive, Atlanta, Georgia 30322, USA.
Nature Neuroscience (Impact Factor: 16.1). 05/2008; 11(4):426-8. DOI: 10.1038/nn2072
Source: PubMed


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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