Visual and haptic perception of postural affordances in children and adults.
Identifieur interne : 001967 ( PubMed/Checkpoint ); précédent : 001966; suivant : 001968Visual and haptic perception of postural affordances in children and adults.
Auteurs : Gunvor L. Klevberg [États-Unis] ; David I. AndersonSource :
- Human movement science [ 0167-9457 ] ; 2002.
English descriptors
- KwdEn :
- MESH :
- physiology : Attention, Posture, Psychomotor Performance, Visual Perception.
- Adult, Child, Female, Humans, Male, Reaction Time.
Abstract
The present study compared how children and adults perceived affordances for upright stance when information was available either visually or haptically. 12 adults (mean age=26.5 years) and 13 children (mean age=4.5 years) examined an adjustable wooden platform that was randomly set at five different degrees of inclination (17, 22, 27, 33, 39). In the haptic condition, a masking curtain excluded vision of the platform and the surface was explored with a hand-held, wooden dowel. Results showed that for both children and adults there was closer agreement between perceptual judgments and action capabilities in the visual condition. Children overestimated their ability to stand on the steeper slopes, took equal amounts of time to make their judgments across all slopes, and were equally confident in their judgments across all slopes. In contrast, adults were more accurate than children at judging the affordances for upright stance, took longer to respond close to the actual action boundary, and were less confident close to the action boundary. Furthermore, adults took longer to respond and were less confident in the haptic condition whereas children had similar response times and were equally confident in both conditions. These important differences between adults and children in the perception of a basic affordance are discussed with reference to the coupling between perception and action at different phases of the lifespan and to the factors that might influence the organization of this coupling. Finally, implications are drawn for the prevention of accidents and the promotion of basic motor competence in children.
PubMed: 12167297
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Klevberg</name><affiliation wicri:level="2"><nlm:affiliation>Department of Kinesiology, San Francisco State University, 1600 Holloway Ave San Francisco, CA 94132-4161, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Kinesiology, San Francisco State University, 1600 Holloway Ave San Francisco, CA 94132-4161</wicri:regionArea><placeName><region type="state">Californie</region></placeName></affiliation></author><author><name sortKey="Anderson, David I" sort="Anderson, David I" uniqKey="Anderson D" first="David I" last="Anderson">David I. Anderson</name></author></analytic><series><title level="j">Human movement science</title><idno type="ISSN">0167-9457</idno><imprint><date when="2002" type="published">2002</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Attention (physiology)</term><term>Child</term><term>Female</term><term>Humans</term><term>Male</term><term>Posture (physiology)</term><term>Psychomotor Performance (physiology)</term><term>Reaction Time</term><term>Visual Perception (physiology)</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Attention</term><term>Posture</term><term>Psychomotor Performance</term><term>Visual Perception</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Child</term><term>Female</term><term>Humans</term><term>Male</term><term>Reaction Time</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The present study compared how children and adults perceived affordances for upright stance when information was available either visually or haptically. 12 adults (mean age=26.5 years) and 13 children (mean age=4.5 years) examined an adjustable wooden platform that was randomly set at five different degrees of inclination (17, 22, 27, 33, 39). In the haptic condition, a masking curtain excluded vision of the platform and the surface was explored with a hand-held, wooden dowel. Results showed that for both children and adults there was closer agreement between perceptual judgments and action capabilities in the visual condition. Children overestimated their ability to stand on the steeper slopes, took equal amounts of time to make their judgments across all slopes, and were equally confident in their judgments across all slopes. In contrast, adults were more accurate than children at judging the affordances for upright stance, took longer to respond close to the actual action boundary, and were less confident close to the action boundary. Furthermore, adults took longer to respond and were less confident in the haptic condition whereas children had similar response times and were equally confident in both conditions. These important differences between adults and children in the perception of a basic affordance are discussed with reference to the coupling between perception and action at different phases of the lifespan and to the factors that might influence the organization of this coupling. Finally, implications are drawn for the prevention of accidents and the promotion of basic motor competence in children.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">12167297</PMID><DateCreated><Year>2002</Year><Month>08</Month><Day>08</Day></DateCreated><DateCompleted><Year>2002</Year><Month>10</Month><Day>28</Day></DateCompleted><DateRevised><Year>2007</Year><Month>11</Month><Day>14</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0167-9457</ISSN><JournalIssue CitedMedium="Print"><Volume>21</Volume><Issue>2</Issue><PubDate><Year>2002</Year><Month>Jul</Month></PubDate></JournalIssue><Title>Human movement science</Title><ISOAbbreviation>Hum Mov Sci</ISOAbbreviation></Journal><ArticleTitle>Visual and haptic perception of postural affordances in children and adults.</ArticleTitle><Pagination><MedlinePgn>169-86</MedlinePgn></Pagination><Abstract><AbstractText>The present study compared how children and adults perceived affordances for upright stance when information was available either visually or haptically. 12 adults (mean age=26.5 years) and 13 children (mean age=4.5 years) examined an adjustable wooden platform that was randomly set at five different degrees of inclination (17, 22, 27, 33, 39). In the haptic condition, a masking curtain excluded vision of the platform and the surface was explored with a hand-held, wooden dowel. Results showed that for both children and adults there was closer agreement between perceptual judgments and action capabilities in the visual condition. Children overestimated their ability to stand on the steeper slopes, took equal amounts of time to make their judgments across all slopes, and were equally confident in their judgments across all slopes. In contrast, adults were more accurate than children at judging the affordances for upright stance, took longer to respond close to the actual action boundary, and were less confident close to the action boundary. Furthermore, adults took longer to respond and were less confident in the haptic condition whereas children had similar response times and were equally confident in both conditions. These important differences between adults and children in the perception of a basic affordance are discussed with reference to the coupling between perception and action at different phases of the lifespan and to the factors that might influence the organization of this coupling. 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Anderson</name></noCountry><country name="États-Unis"><region name="Californie"><name sortKey="Klevberg, Gunvor L" sort="Klevberg, Gunvor L" uniqKey="Klevberg G" first="Gunvor L" last="Klevberg">Gunvor L. Klevberg</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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