Blindness enhances tactile acuity and haptic 3-D shape discrimination.
Identifieur interne : 000E49 ( PubMed/Corpus ); précédent : 000E48; suivant : 000E50Blindness enhances tactile acuity and haptic 3-D shape discrimination.
Auteurs : J Farley Norman ; Ashley N. BartholomewSource :
- Attention, perception & psychophysics [ 1943-393X ] ; 2011.
English descriptors
- KwdEn :
- MESH :
- congenital : Blindness.
- psychology : Blindness.
- Adult, Aged, Aptitude, Depth Perception, Discrimination (Psychology), Female, Humans, Male, Middle Aged, Orientation, Recognition (Psychology), Sensory Thresholds, Stereognosis, Touch, Visual Perception.
Abstract
This study compared the sensory and perceptual abilities of the blind and sighted. The 32 participants were required to perform two tasks: tactile grating orientation discrimination (to determine tactile acuity) and haptic three-dimensional (3-D) shape discrimination. The results indicated that the blind outperformed their sighted counterparts (individually matched for both age and sex) on both tactile tasks. The improvements in tactile acuity that accompanied blindness occurred for all blind groups (congenital, early, and late). However, the improvements in haptic 3-D shape discrimination only occurred for the early-onset and late-onset blindness groups; the performance of the congenitally blind was no better than that of the sighted controls. The results of the present study demonstrate that blindness does lead to an enhancement of tactile abilities, but they also suggest that early visual experience may play a role in facilitating haptic 3-D shape discrimination.
DOI: 10.3758/s13414-011-0160-4
PubMed: 21671153
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Bartholomew</name></author></analytic><series><title level="j">Attention, perception & psychophysics</title><idno type="eISSN">1943-393X</idno><imprint><date when="2011" type="published">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Aged</term><term>Aptitude</term><term>Blindness (congenital)</term><term>Blindness (psychology)</term><term>Depth Perception</term><term>Discrimination (Psychology)</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Orientation</term><term>Recognition (Psychology)</term><term>Sensory Thresholds</term><term>Stereognosis</term><term>Touch</term><term>Visual Perception</term></keywords><keywords scheme="MESH" qualifier="congenital" xml:lang="en"><term>Blindness</term></keywords><keywords scheme="MESH" qualifier="psychology" xml:lang="en"><term>Blindness</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Aged</term><term>Aptitude</term><term>Depth Perception</term><term>Discrimination (Psychology)</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Orientation</term><term>Recognition (Psychology)</term><term>Sensory Thresholds</term><term>Stereognosis</term><term>Touch</term><term>Visual Perception</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This study compared the sensory and perceptual abilities of the blind and sighted. The 32 participants were required to perform two tasks: tactile grating orientation discrimination (to determine tactile acuity) and haptic three-dimensional (3-D) shape discrimination. The results indicated that the blind outperformed their sighted counterparts (individually matched for both age and sex) on both tactile tasks. The improvements in tactile acuity that accompanied blindness occurred for all blind groups (congenital, early, and late). However, the improvements in haptic 3-D shape discrimination only occurred for the early-onset and late-onset blindness groups; the performance of the congenitally blind was no better than that of the sighted controls. The results of the present study demonstrate that blindness does lead to an enhancement of tactile abilities, but they also suggest that early visual experience may play a role in facilitating haptic 3-D shape discrimination.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">21671153</PMID><DateCreated><Year>2011</Year><Month>10</Month><Day>31</Day></DateCreated><DateCompleted><Year>2012</Year><Month>03</Month><Day>29</Day></DateCompleted><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1943-393X</ISSN><JournalIssue CitedMedium="Internet"><Volume>73</Volume><Issue>7</Issue><PubDate><Year>2011</Year><Month>Oct</Month></PubDate></JournalIssue><Title>Attention, perception & psychophysics</Title><ISOAbbreviation>Atten Percept Psychophys</ISOAbbreviation></Journal><ArticleTitle>Blindness enhances tactile acuity and haptic 3-D shape discrimination.</ArticleTitle><Pagination><MedlinePgn>2323-31</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.3758/s13414-011-0160-4</ELocationID><Abstract><AbstractText>This study compared the sensory and perceptual abilities of the blind and sighted. The 32 participants were required to perform two tasks: tactile grating orientation discrimination (to determine tactile acuity) and haptic three-dimensional (3-D) shape discrimination. The results indicated that the blind outperformed their sighted counterparts (individually matched for both age and sex) on both tactile tasks. The improvements in tactile acuity that accompanied blindness occurred for all blind groups (congenital, early, and late). However, the improvements in haptic 3-D shape discrimination only occurred for the early-onset and late-onset blindness groups; the performance of the congenitally blind was no better than that of the sighted controls. 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Farley.Norman@wku.edu</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Bartholomew</LastName><ForeName>Ashley N</ForeName><Initials>AN</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Atten Percept Psychophys</MedlineTA><NlmUniqueID>101495384</NlmUniqueID><ISSNLinking>1943-3921</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000328">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000368">Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D001076">Aptitude</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D001766">Blindness</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000151">congenital</QualifierName><QualifierName MajorTopicYN="Y" UI="Q000523">psychology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D003867">Depth Perception</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D004192">Discrimination (Psychology)</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D005260">Female</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D006801">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008297">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008875">Middle Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D009949">Orientation</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D021641">Recognition (Psychology)</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D012684">Sensory Thresholds</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D013236">Stereognosis</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D014110">Touch</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D014796">Visual Perception</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2011</Year><Month>6</Month><Day>15</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2011</Year><Month>6</Month><Day>15</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2012</Year><Month>3</Month><Day>30</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.3758/s13414-011-0160-4</ArticleId><ArticleId IdType="pubmed">21671153</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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