Task constraints and infant grip configurations.
Identifieur interne : 002249 ( PubMed/Corpus ); précédent : 002248; suivant : 002250Task constraints and infant grip configurations.
Auteurs : K M Newell ; D M Scully ; P V Mcdonald ; R. BaillargeonSource :
- Developmental psychobiology [ 0012-1630 ] ; 1989.
English descriptors
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Abstract
The prehensile grip configurations of infants aged 4 through 8 months were examined as they grasped objects that varied in size and shape. The findings revealed that infants as young as 4 months systematically differentiate grip configurations as a function of the object properties in essentially the same way that 8-month-old infants do. However, the younger 4-month-old infants predominantly used the haptic system in addition to the visual system for information pick-up regarding object properties, whereas 8-month-old infants predominantly used information from the visual system alone to differentiate grip configurations according to the object properties. Infants apparently perceive the same action-relevant information through different emphases of the sensory modes to drive the action system with a similar grip configuration for a given object. It is proposed that the traditional description of an orderly sequence to the development of infant prehension (e.g., Halverson, 1931) is too conservative and inflexible to capture the functionally adaptive prehensile behavior of infants to changing task constraints.
DOI: 10.1002/dev.420220806
PubMed: 2636204
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pubmed:2636204Le document en format XML
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Baillargeon</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1989">1989</date><idno type="RBID">pubmed:2636204</idno><idno type="pmid">2636204</idno><idno type="doi">10.1002/dev.420220806</idno><idno type="wicri:Area/PubMed/Corpus">002249</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Task constraints and infant grip configurations.</title><author><name sortKey="Newell, K M" sort="Newell, K M" uniqKey="Newell K" first="K M" last="Newell">K M Newell</name><affiliation><nlm:affiliation>Department of Kinesiology, University of Illinois, Urbana 61801.</nlm:affiliation></affiliation></author><author><name sortKey="Scully, D M" sort="Scully, D M" uniqKey="Scully D" first="D M" last="Scully">D M Scully</name></author><author><name sortKey="Mcdonald, P V" sort="Mcdonald, P V" uniqKey="Mcdonald P" first="P V" last="Mcdonald">P V Mcdonald</name></author><author><name sortKey="Baillargeon, R" sort="Baillargeon, R" uniqKey="Baillargeon R" first="R" last="Baillargeon">R. Baillargeon</name></author></analytic><series><title level="j">Developmental psychobiology</title><idno type="ISSN">0012-1630</idno><imprint><date when="1989" type="published">1989</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Exploratory Behavior</term><term>Female</term><term>Humans</term><term>Infant</term><term>Male</term><term>Motor Skills</term><term>Orientation</term><term>Psychology, Child</term><term>Psychomotor Performance</term><term>Stereognosis</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Exploratory Behavior</term><term>Female</term><term>Humans</term><term>Infant</term><term>Male</term><term>Motor Skills</term><term>Orientation</term><term>Psychology, Child</term><term>Psychomotor Performance</term><term>Stereognosis</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The prehensile grip configurations of infants aged 4 through 8 months were examined as they grasped objects that varied in size and shape. The findings revealed that infants as young as 4 months systematically differentiate grip configurations as a function of the object properties in essentially the same way that 8-month-old infants do. However, the younger 4-month-old infants predominantly used the haptic system in addition to the visual system for information pick-up regarding object properties, whereas 8-month-old infants predominantly used information from the visual system alone to differentiate grip configurations according to the object properties. Infants apparently perceive the same action-relevant information through different emphases of the sensory modes to drive the action system with a similar grip configuration for a given object. It is proposed that the traditional description of an orderly sequence to the development of infant prehension (e.g., Halverson, 1931) is too conservative and inflexible to capture the functionally adaptive prehensile behavior of infants to changing task constraints.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">2636204</PMID><DateCreated><Year>1990</Year><Month>06</Month><Day>25</Day></DateCreated><DateCompleted><Year>1990</Year><Month>06</Month><Day>25</Day></DateCompleted><DateRevised><Year>2014</Year><Month>11</Month><Day>20</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0012-1630</ISSN><JournalIssue CitedMedium="Print"><Volume>22</Volume><Issue>8</Issue><PubDate><Year>1989</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Developmental psychobiology</Title><ISOAbbreviation>Dev Psychobiol</ISOAbbreviation></Journal><ArticleTitle>Task constraints and infant grip configurations.</ArticleTitle><Pagination><MedlinePgn>817-31</MedlinePgn></Pagination><Abstract><AbstractText>The prehensile grip configurations of infants aged 4 through 8 months were examined as they grasped objects that varied in size and shape. 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