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Laughing, grooming, and pub science.
Department of Psychology, University of Maryland, Baltimore County, Baltimore, Maryland 21250, USA. provine@umbc.edu
Trends in cognitive sciences 2013 JanSizes of these terms reflect their relevance to your search.
On the basis of naturalistic observations of people conversing and laughing in pubs, a new study suggests that the 'grooming-at-a-distance' of laughter provides a three-fold increase in grooming group size, potentially explaining how hominins evolved social groups that are considerably larger than those of other primates. Copyright © 2012 Elsevier Ltd. All rights reserved.
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Robert R Provine. Laughing, grooming, and pub science. Trends in cognitive sciences. 2013 Jan;17(1):9-10
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PMID: 23168210
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