| Manual laterality in Campbell's Monkeys (Cercopithecus c. campbelli) in spontaneous and experimental actions. | |
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MedLine Citation:
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PMID: 16919818 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Behavioural asymmetries, once thought to be exclusively human, appear to be widespread in vertebrates. A population-level bias should stem from natural selection and reflect a cerebral dominance, while individual preferences might be linked to individual characteristics. Manual laterality has been extensively investigated in non-human primates. However, despite a strong data base, no general patterns have emerged, resulting in a few explanatory theories and little consensus. This study was interested in manual laterality in 12 Campbell's monkeys (Cercopithecus c. campbelli). Several theories were examined, using both direct behavioural observations during feeding behaviour and six controlled experimental conditions, in which we varied task demands to investigate the effect of two factors. We systematically varied the individual posture (sat, tripedal, bipedal, clung) and the complexity of the task (box with or without a lid to open). Concerning the direction of preference, we found individual and action-specific preferences for experimental actions, which match previous reports. No population bias emerged and each subject appeared to react differently to the factors, hereby contradicting the theories. However, concerning the strength of preference, all individuals tended to be affected in similar ways. Spontaneous actions were less lateralized than experimental ones, and the simplest task and spontaneous category tended to show the weakest laterality. The relative complexity and novelty of these actions may account for these results. |
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Authors:
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Amandine Chapelain; Philippe Bec; Catherine Blois-Heulin |
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Publication Detail:
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Type: Comparative Study; Journal Article Date: 2006-08-17 |
Journal Detail:
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Title: Behavioural brain research Volume: 173 ISSN: 0166-4328 ISO Abbreviation: Behav. Brain Res. Publication Date: 2006 Oct |
Date Detail:
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Created Date: 2006-09-01 Completed Date: 2006-11-01 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8004872 Medline TA: Behav Brain Res Country: Netherlands |
Other Details:
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Languages: eng Pagination: 237-45 Citation Subset: IM |
Affiliation:
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Department of Human Sciences, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK. A.S.Chapelain@lboro.ac.uk |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Behavior, Animal / physiology* Cercopithecus / physiology* Choice Behavior Feeding Behavior / physiology Female Functional Laterality / physiology* Male Psychomotor Performance / physiology* |
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