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Curr Opin Neurobiol. 2005 Dec;15(6):716-20. Epub 2005 Nov 7.

Emotional communication in primates: implications for neurobiology.

Author information

1
Department of Psychiatry and Behavioral Sciences, Yerkes National Primate Research Center, Emory University, 954 Gatewood Road, Atlanta, GA 30329, USA. parr@rmy.emory.edu

Erratum in

  • Curr Opin Neurobiol. 2006 Feb;16(1):126.

Abstract

The social brain hypothesis proposes that large neocortex size in Homonoids evolved to cope with the increasing demands of complex group living and greater numbers of interindividual relationships. Group living requires that individuals communicate effectively about environmental and internal events. Recent data have highlighted the complexity of chimpanzee communication, including graded facial expressions and referential vocalizations. Among Hominoids, elaborate facial communication is accompanied by specializations in brain areas controlling facial movement. Finally, the evolution of empathy, or emotional awareness, might have a neural basis in specialized cells in the neocortex, that is, spindle cells that have been associated with self-conscious emotions, and mirror neurons that have recently been shown to activate in response to communicative facial gestures.

PMID:
16274983
PMCID:
PMC2826104
DOI:
10.1016/j.conb.2005.10.017
[Indexed for MEDLINE]
Free PMC Article

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