Left hand preferences in capuchins (Cebus apella): role of spatial demands in manual activity.
Identifieur interne : 001A41 ( PubMed/Corpus ); précédent : 001A40; suivant : 001A42Left hand preferences in capuchins (Cebus apella): role of spatial demands in manual activity.
Auteurs : A. Lacreuse ; D M FragaszySource :
- Laterality [ 1357-650X ] ; 1999.
Abstract
Sixteen capuchins (Cebus apella) participated in four tasks that differed in their exploration demands and availability of visual cues. The two explorative tasks required the monkeys to discover sunflower seeds hidden in crevices in objects of various shapes, with vision (Haptic-Visual task) or without vision (Haptic task). Two other tasks required the capuchins to grasp sunflower seeds directly on a flat support, with vision (Visual reaching) or without vision (Tactual reaching). The presence or absence of exploration demands had a significant effect on the direction of hand preferences. The group displayed greater left hand preferences for the Haptic and Haptic-Visual tasks than for the two reaching tasks. The strength of manual preferences did not differ significantly among the four tasks. These findings suggest that the manipulo-spatial demands of a task are of particular importance for the expression of left hand bias in a population of capuchins. It is argued that left hand preferences for the haptic tasks may reflect a right hemisphere specialisation to integrate the spatial and motor components of action.
DOI: 10.1080/713754321
PubMed: 15513105
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Lacreuse</name><affiliation><nlm:affiliation>University of Georgia, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Fragaszy, D M" sort="Fragaszy, D M" uniqKey="Fragaszy D" first="D M" last="Fragaszy">D M Fragaszy</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1999">1999</date><idno type="RBID">pubmed:15513105</idno><idno type="pmid">15513105</idno><idno type="doi">10.1080/713754321</idno><idno type="wicri:Area/PubMed/Corpus">001A41</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Left hand preferences in capuchins (Cebus apella): role of spatial demands in manual activity.</title><author><name sortKey="Lacreuse, A" sort="Lacreuse, A" uniqKey="Lacreuse A" first="A" last="Lacreuse">A. Lacreuse</name><affiliation><nlm:affiliation>University of Georgia, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Fragaszy, D M" sort="Fragaszy, D M" uniqKey="Fragaszy D" first="D M" last="Fragaszy">D M Fragaszy</name></author></analytic><series><title level="j">Laterality</title><idno type="ISSN">1357-650X</idno><imprint><date when="1999" type="published">1999</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Sixteen capuchins (Cebus apella) participated in four tasks that differed in their exploration demands and availability of visual cues. The two explorative tasks required the monkeys to discover sunflower seeds hidden in crevices in objects of various shapes, with vision (Haptic-Visual task) or without vision (Haptic task). Two other tasks required the capuchins to grasp sunflower seeds directly on a flat support, with vision (Visual reaching) or without vision (Tactual reaching). The presence or absence of exploration demands had a significant effect on the direction of hand preferences. The group displayed greater left hand preferences for the Haptic and Haptic-Visual tasks than for the two reaching tasks. The strength of manual preferences did not differ significantly among the four tasks. These findings suggest that the manipulo-spatial demands of a task are of particular importance for the expression of left hand bias in a population of capuchins. It is argued that left hand preferences for the haptic tasks may reflect a right hemisphere specialisation to integrate the spatial and motor components of action.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="PubMed-not-MEDLINE"><PMID Version="1">15513105</PMID><DateCreated><Year>2004</Year><Month>10</Month><Day>29</Day></DateCreated><DateCompleted><Year>2005</Year><Month>03</Month><Day>17</Day></DateCompleted><Article PubModel="Print"><Journal><ISSN IssnType="Print">1357-650X</ISSN><JournalIssue CitedMedium="Print"><Volume>4</Volume><Issue>1</Issue><PubDate><Year>1999</Year><Month>Jan</Month></PubDate></JournalIssue><Title>Laterality</Title><ISOAbbreviation>Laterality</ISOAbbreviation></Journal><ArticleTitle>Left hand preferences in capuchins (Cebus apella): role of spatial demands in manual activity.</ArticleTitle><Pagination><MedlinePgn>65-78</MedlinePgn></Pagination><Abstract><AbstractText>Sixteen capuchins (Cebus apella) participated in four tasks that differed in their exploration demands and availability of visual cues. The two explorative tasks required the monkeys to discover sunflower seeds hidden in crevices in objects of various shapes, with vision (Haptic-Visual task) or without vision (Haptic task). Two other tasks required the capuchins to grasp sunflower seeds directly on a flat support, with vision (Visual reaching) or without vision (Tactual reaching). The presence or absence of exploration demands had a significant effect on the direction of hand preferences. The group displayed greater left hand preferences for the Haptic and Haptic-Visual tasks than for the two reaching tasks. The strength of manual preferences did not differ significantly among the four tasks. These findings suggest that the manipulo-spatial demands of a task are of particular importance for the expression of left hand bias in a population of capuchins. 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