Document Detail

Heritability of hand preference in chimpanzees (Pan troglodytes): evidence from a partial interspecies cross-fostering study.
MedLine Citation:
PMID:  10497796     Owner:  NLM     Status:  MEDLINE    
Heritability of hand preference was tested in a sample of 188 chimpanzees (Pan troglodytes). Hand preference was measured by coordinated bimanual actions, and concordance percentages were compared between parents and offspring and siblings. Among siblings, concordance percentages were compared for dyads in which both individuals were raised by chimpanzees, both were raised by humans, or 1 was raised in each environment. The results indicated population-level right hand preferences for coordinated bimanual actions. There were no significant associations in hand preference between parents and offspring. In full and maternal half siblings, concordance in hand preference was significantly greater than chance in mother- and human-reared individuals but not in cross-fostered dyads. The cumulative results suggest that the direction of hand preference is heritable in chimpanzees but the mechanism of transmission is not genetic. Several environmental explanations are proposed to explain the findings, including the potential role of maternal cradling bias and in utero fetal position.
W D Hopkins
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of comparative psychology (Washington, D.C. : 1983)     Volume:  113     ISSN:  0735-7036     ISO Abbreviation:  J Comp Psychol     Publication Date:  1999 Sep 
Date Detail:
Created Date:  1999-10-21     Completed Date:  1999-10-21     Revised Date:  2013-06-11    
Medline Journal Info:
Nlm Unique ID:  8309850     Medline TA:  J Comp Psychol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  307-13     Citation Subset:  IM    
Department of Psychology, Berry College, USA.
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MeSH Terms
Choice Behavior / physiology*
Functional Laterality / genetics*
Pan troglodytes / physiology*
Social Environment*
Grant Support
NS29574/NS/NINDS NIH HHS; P01 HD038051-050005/HD/NICHD NIH HHS; R01 NS036605-08/NS/NINDS NIH HHS; R01 NS042867-05/NS/NINDS NIH HHS; RR00165/RR/NCRR NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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