title: The evolution of the arcuate fasciculus revealed with comparative DTI.
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.
authors.affiliation: Department of Anthropology, Emory University, 207 Anthropology Building, 1557 Dickey Drive, Atlanta, Georgia 30322, USA. jrillin@emory.edu
authors.forename: James K
authors.initials: JK
authors.lastname: Rilling
authors.forename: Matthew F
authors.initials: MF
authors.lastname: Glasser
authors.forename: Todd M
authors.initials: TM
authors.lastname: Preuss
authors.forename: Xiangyang
authors.initials: X
authors.lastname: Ma
authors.forename: Tiejun
authors.initials: T
authors.lastname: Zhao
authors.forename: Xiaoping
authors.initials: X
authors.lastname: Hu
authors.forename: Timothy E J
authors.initials: TE
authors.lastname: Behrens
mesh_terms: D000717:Anatomy, Comparative / Q000295:instrumentation; D000818:Animals; D005075:Biological Evolution; D001931:Brain Mapping / Q000295:instrumentation; D038524:Diffusion Magnetic Resonance Imaging; D005625:Frontal Lobe / Q000033:anatomy & histology; D006801:Humans; D008253:Macaca mulatta / Q000033:anatomy & histology*; D009413:Nerve Fibers, Myelinated; D009434:Neural Pathways / Q000033:anatomy & histology*; D002679:Pan troglodytes / Q000033:anatomy & histology*; D013702:Temporal Lobe / Q000033:anatomy & histology