Document Detail

Effect of posture on hand preferences during experimental food reaching in bonobos (Pan paniscus).
MedLine Citation:
PMID:  7758294     Owner:  NLM     Status:  MEDLINE    
The effect of posture on hand preferences was examined in an experiment with 5 bonobos (Pan paniscus). To obtain a food reward, the animals had to adopt 1 out of 7 different postures. These postures represented an increasing problem to the maintenance of body equilibrium. It was expected that an increasing demand for equilibrium maintenance would elicit individual preferences and a population-level bias. All animals showed an increasing trend toward left-handedness while shifting to a bipedal posture from a seated posture by way of a quadrupedal posture. The importance of bipedalism in the evolution of left- and right-handedness is discussed briefly.
K De Vleeschouwer; L Van Elsacker; R F Verheyen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of comparative psychology (Washington, D.C. : 1983)     Volume:  109     ISSN:  0735-7036     ISO Abbreviation:  J Comp Psychol     Publication Date:  1995 Jun 
Date Detail:
Created Date:  1995-06-28     Completed Date:  1995-06-28     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8309850     Medline TA:  J Comp Psychol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  203-7     Citation Subset:  IM; S    
Department of Biology, University of Antwerp, Belgium.
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MeSH Terms
Appetitive Behavior
Feeding Behavior*
Functional Laterality*
Pan troglodytes / psychology*
Postural Balance
Problem Solving
Psychomotor Performance*

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