A comparison of haptic material perception in blind and sighted individuals.
Identifieur interne : 000408 ( PubMed/Curation ); précédent : 000407; suivant : 000409A comparison of haptic material perception in blind and sighted individuals.
Auteurs : Elisabeth Baumgartner [Allemagne] ; Christiane B. Wiebel [Allemagne] ; Karl R. Gegenfurtner [Allemagne]Source :
- Vision research [ 1878-5646 ] ; 2015.
Abstract
We investigated material perception in blind participants to explore the influence of visual experience on material representations and the relationship between visual and haptic material perception. In a previous study with sighted participants, we had found participants' visual and haptic judgments of material properties to be very similar (Baumgartner, Wiebel, & Gegenfurtner, 2013). In a categorization task, however, visual exploration had led to higher categorization accuracy than haptic exploration. Here, we asked congenitally blind participants to explore different materials haptically and rate several material properties in order to assess the role of the visual sense for the emergence of haptic material perception. Principal components analyses combined with a procrustes superimposition showed that the material representations of blind and blindfolded sighted participants were highly similar. We also measured haptic categorization performance, which was equal for the two groups. We conclude that haptic material representations can emerge independently of visual experience, and that there are no advantages for either group of observers in haptic categorization.
DOI: 10.1016/j.visres.2015.02.006
PubMed: 25711976
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Gegenfurtner</name><affiliation wicri:level="1"><nlm:affiliation>Abteilung Allgemeine Psychologie, Universität Gießen, Gießen, Germany.</nlm:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Abteilung Allgemeine Psychologie, Universität Gießen, Gießen</wicri:regionArea></affiliation></author></analytic><series><title level="j">Vision research</title><idno type="eISSN">1878-5646</idno><imprint><date when="2015" type="published">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We investigated material perception in blind participants to explore the influence of visual experience on material representations and the relationship between visual and haptic material perception. In a previous study with sighted participants, we had found participants' visual and haptic judgments of material properties to be very similar (Baumgartner, Wiebel, & Gegenfurtner, 2013). In a categorization task, however, visual exploration had led to higher categorization accuracy than haptic exploration. Here, we asked congenitally blind participants to explore different materials haptically and rate several material properties in order to assess the role of the visual sense for the emergence of haptic material perception. Principal components analyses combined with a procrustes superimposition showed that the material representations of blind and blindfolded sighted participants were highly similar. We also measured haptic categorization performance, which was equal for the two groups. We conclude that haptic material representations can emerge independently of visual experience, and that there are no advantages for either group of observers in haptic categorization.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="In-Process"><PMID Version="1">25711976</PMID><DateCreated><Year>2015</Year><Month>10</Month><Day>01</Day></DateCreated><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1878-5646</ISSN><JournalIssue CitedMedium="Internet"><Volume>115</Volume><Issue>Pt B</Issue><PubDate><Year>2015</Year><Month>Oct</Month></PubDate></JournalIssue><Title>Vision research</Title><ISOAbbreviation>Vision Res.</ISOAbbreviation></Journal><ArticleTitle>A comparison of haptic material perception in blind and sighted individuals.</ArticleTitle><Pagination><MedlinePgn>238-45</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.visres.2015.02.006</ELocationID><ELocationID EIdType="pii" ValidYN="Y">S0042-6989(15)00047-4</ELocationID><Abstract><AbstractText>We investigated material perception in blind participants to explore the influence of visual experience on material representations and the relationship between visual and haptic material perception. In a previous study with sighted participants, we had found participants' visual and haptic judgments of material properties to be very similar (Baumgartner, Wiebel, & Gegenfurtner, 2013). In a categorization task, however, visual exploration had led to higher categorization accuracy than haptic exploration. Here, we asked congenitally blind participants to explore different materials haptically and rate several material properties in order to assess the role of the visual sense for the emergence of haptic material perception. Principal components analyses combined with a procrustes superimposition showed that the material representations of blind and blindfolded sighted participants were highly similar. We also measured haptic categorization performance, which was equal for the two groups. We conclude that haptic material representations can emerge independently of visual experience, and that there are no advantages for either group of observers in haptic categorization.</AbstractText><CopyrightInformation>Copyright © 2015 Elsevier Ltd. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Baumgartner</LastName><ForeName>Elisabeth</ForeName><Initials>E</Initials><AffiliationInfo><Affiliation>Abteilung Allgemeine Psychologie, Universität Gießen, Gießen, Germany. 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