Brief Communication abstract
Nature Neuroscience 11, 426 - 428 (2008)
Published online: 23 March 2008 | doi:10.1038/nn2072
The evolution of the arcuate fasciculus revealed with comparative DTI
James K Rilling1,2,3,4, Matthew F Glasser1, Todd M Preuss3,5,6, Xiangyang Ma7, Tiejun Zhao7, Xiaoping Hu7 & Timothy E J Behrens8,9
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.
- Department of Anthropology, Emory University, 207 Anthropology Building, 1557 Dickey Drive, Atlanta, Georgia 30322, USA.
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, 1639 Pierce Drive, Suite 4000, Atlanta, Georgia 30322, USA.
- Center for Behavioral Neuroscience, Emory University, PO Box 3966, Atlanta, Georgia 30302, USA.
- Division of Psychobiology, Yerkes National Primate Research Center, 954 Gatewood Road, NE, Atlanta, Georgia 30329, USA.
- Division of Neuroscience, Yerkes National Primate Research Center, 954 Gatewood Road, NE, Atlanta, Georgia 30329, USA.
- Pathology & Laboratory Medicine, Emory University School of Medicine, Emory University Hospital, Room H183, 1364 Clifton Road, NE, Atlanta, Georgia 30322, USA.
- Biomedical Imaging Technology Center, Emory University, Hospital Education Annex, 531 Asbury Circle, Suite 305, Atlanta, Georgia 30322, USA.
- FMRIB Centre, University of Oxford, J R Hospital, Headley Way, Headington, Oxford, OX3 9DU, UK.
- Department of Experimental Psychology, University of Oxford, South Parks Road, Oxford, OX1 3UD, UK.
Correspondence to: James K Rilling1,2,3,4 e-mail: jrillin@emory.edu
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