Symmetry in haptic and in visual shape perception.
Identifieur interne : 001F65 ( PubMed/Curation ); précédent : 001F64; suivant : 001F66Symmetry in haptic and in visual shape perception.
Auteurs : S. Ballesteros [Espagne] ; S. Millar ; J M RealesSource :
- Perception & psychophysics [ 0031-5117 ] ; 1998.
English descriptors
- KwdEn :
- MESH :
- physiology : Form Perception, Touch.
- Humans, Reaction Time.
Abstract
Four experiments tested the hypothesis that bilateral symmetry is an incidental encoding property in vision, but can also be elicited as an incidental effect in touch, provided that sufficient spatial reference information is available initially for haptic inputs to be organized spatially. Experiment 1 showed that symmetry facilitated processing in vision, even though the task required judgments of stimulus closure rather than the detection of symmetry. The same task and stimuli failed to show symmetry effects in tactual scanning by one finger (Experiment 2). Experiment 3 found facilitating effects for vertically symmetric open stimuli, although not for closed patterns, in two-forefinger exploration when the forefingers had previously been aligned to the body midaxis to provide body-centered spatial reference. The one-finger exploration condition again failed to show symmetry effects. Experiment 4 replicated the facilitating effects of symmetry for open symmetric shapes in tactual exploration by the two (previously aligned) forefingers. Closed shapes again showed no effect. Spatial-reference information, finger movements, and stimulus factors in shape perception by touch are discussed.
PubMed: 9599991
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Millar</name></author><author><name sortKey="Reales, J M" sort="Reales, J M" uniqKey="Reales J" first="J M" last="Reales">J M Reales</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1998">1998</date><idno type="RBID">pubmed:9599991</idno><idno type="pmid">9599991</idno><idno type="wicri:Area/PubMed/Corpus">001F65</idno><idno type="wicri:Area/PubMed/Curation">001F65</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Symmetry in haptic and in visual shape perception.</title><author><name sortKey="Ballesteros, S" sort="Ballesteros, S" uniqKey="Ballesteros S" first="S" last="Ballesteros">S. Ballesteros</name><affiliation wicri:level="1"><nlm:affiliation>Departamento de Psicología Básica II, Ciudad Universitaria S/N, Universidad Nacional de Educaión a Distancia, Madrid, Spain. sballest@cu.uned.es</nlm:affiliation><country xml:lang="fr">Espagne</country><wicri:regionArea>Departamento de Psicología Básica II, Ciudad Universitaria S/N, Universidad Nacional de Educaión a Distancia, Madrid</wicri:regionArea></affiliation></author><author><name sortKey="Millar, S" sort="Millar, S" uniqKey="Millar S" first="S" last="Millar">S. Millar</name></author><author><name sortKey="Reales, J M" sort="Reales, J M" uniqKey="Reales J" first="J M" last="Reales">J M Reales</name></author></analytic><series><title level="j">Perception & psychophysics</title><idno type="ISSN">0031-5117</idno><imprint><date when="1998" type="published">1998</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Form Perception (physiology)</term><term>Humans</term><term>Reaction Time</term><term>Touch (physiology)</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Form Perception</term><term>Touch</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Humans</term><term>Reaction Time</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Four experiments tested the hypothesis that bilateral symmetry is an incidental encoding property in vision, but can also be elicited as an incidental effect in touch, provided that sufficient spatial reference information is available initially for haptic inputs to be organized spatially. Experiment 1 showed that symmetry facilitated processing in vision, even though the task required judgments of stimulus closure rather than the detection of symmetry. The same task and stimuli failed to show symmetry effects in tactual scanning by one finger (Experiment 2). Experiment 3 found facilitating effects for vertically symmetric open stimuli, although not for closed patterns, in two-forefinger exploration when the forefingers had previously been aligned to the body midaxis to provide body-centered spatial reference. The one-finger exploration condition again failed to show symmetry effects. Experiment 4 replicated the facilitating effects of symmetry for open symmetric shapes in tactual exploration by the two (previously aligned) forefingers. Closed shapes again showed no effect. Spatial-reference information, finger movements, and stimulus factors in shape perception by touch are discussed.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">9599991</PMID><DateCreated><Year>1998</Year><Month>07</Month><Day>17</Day></DateCreated><DateCompleted><Year>1998</Year><Month>07</Month><Day>17</Day></DateCompleted><DateRevised><Year>2006</Year><Month>11</Month><Day>15</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0031-5117</ISSN><JournalIssue CitedMedium="Print"><Volume>60</Volume><Issue>3</Issue><PubDate><Year>1998</Year><Month>Apr</Month></PubDate></JournalIssue><Title>Perception & psychophysics</Title><ISOAbbreviation>Percept Psychophys</ISOAbbreviation></Journal><ArticleTitle>Symmetry in haptic and in visual shape perception.</ArticleTitle><Pagination><MedlinePgn>389-404</MedlinePgn></Pagination><Abstract><AbstractText>Four experiments tested the hypothesis that bilateral symmetry is an incidental encoding property in vision, but can also be elicited as an incidental effect in touch, provided that sufficient spatial reference information is available initially for haptic inputs to be organized spatially. Experiment 1 showed that symmetry facilitated processing in vision, even though the task required judgments of stimulus closure rather than the detection of symmetry. The same task and stimuli failed to show symmetry effects in tactual scanning by one finger (Experiment 2). Experiment 3 found facilitating effects for vertically symmetric open stimuli, although not for closed patterns, in two-forefinger exploration when the forefingers had previously been aligned to the body midaxis to provide body-centered spatial reference. The one-finger exploration condition again failed to show symmetry effects. Experiment 4 replicated the facilitating effects of symmetry for open symmetric shapes in tactual exploration by the two (previously aligned) forefingers. Closed shapes again showed no effect. Spatial-reference information, finger movements, and stimulus factors in shape perception by touch are discussed.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Ballesteros</LastName><ForeName>S</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>Departamento de Psicología Básica II, Ciudad Universitaria S/N, Universidad Nacional de Educaión a Distancia, Madrid, Spain. sballest@cu.uned.es</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Millar</LastName><ForeName>S</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Reales</LastName><ForeName>J M</ForeName><Initials>JM</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>UNITED STATES</Country><MedlineTA>Percept Psychophys</MedlineTA><NlmUniqueID>0200445</NlmUniqueID><ISSNLinking>0031-5117</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D005556">Form Perception</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D006801">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D011930">Reaction Time</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D014110">Touch</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1998</Year><Month>5</Month><Day>26</Day></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1998</Year><Month>5</Month><Day>26</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1998</Year><Month>5</Month><Day>26</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">9599991</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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