Haptic shape processing in visual cortex.
Identifieur interne : 000789 ( PubMed/Corpus ); précédent : 000788; suivant : 000790Haptic shape processing in visual cortex.
Auteurs : Jacqueline C. Snow ; Lars Strother ; Glyn W. HumphreysSource :
- Journal of cognitive neuroscience [ 1530-8898 ] ; 2014.
English descriptors
- KwdEn :
- MESH :
- methods : Magnetic Resonance Imaging, Photic Stimulation.
- physiology : Pattern Recognition, Visual, Psychomotor Performance, Visual Cortex.
- Adult, Female, Humans, Male, Pilot Projects, Young Adult.
Abstract
Humans typically rely upon vision to identify object shape, but we can also recognize shape via touch (haptics). Our haptic shape recognition ability raises an intriguing question: To what extent do visual cortical shape recognition mechanisms support haptic object recognition? We addressed this question using a haptic fMRI repetition design, which allowed us to identify neuronal populations sensitive to the shape of objects that were touched but not seen. In addition to the expected shape-selective fMRI responses in dorsal frontoparietal areas, we observed widespread shape-selective responses in the ventral visual cortical pathway, including primary visual cortex. Our results indicate that shape processing via touch engages many of the same neural mechanisms as visual object recognition. The shape-specific repetition effects we observed in primary visual cortex show that visual sensory areas are engaged during the haptic exploration of object shape, even in the absence of concurrent shape-related visual input. Our results complement related findings in visually deprived individuals and highlight the fundamental role of the visual system in the processing of object shape.
DOI: 10.1162/jocn_a_00548
PubMed: 24345179
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pubmed:24345179Le document en format XML
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Humphreys</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2014">2014</date><idno type="doi">10.1162/jocn_a_00548</idno><idno type="RBID">pubmed:24345179</idno><idno type="pmid">24345179</idno><idno type="wicri:Area/PubMed/Corpus">000789</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Haptic shape processing in visual cortex.</title><author><name sortKey="Snow, Jacqueline C" sort="Snow, Jacqueline C" uniqKey="Snow J" first="Jacqueline C" last="Snow">Jacqueline C. Snow</name><affiliation><nlm:affiliation>University of Nevada.</nlm:affiliation></affiliation></author><author><name sortKey="Strother, Lars" sort="Strother, Lars" uniqKey="Strother L" first="Lars" last="Strother">Lars Strother</name></author><author><name sortKey="Humphreys, Glyn W" sort="Humphreys, Glyn W" uniqKey="Humphreys G" first="Glyn W" last="Humphreys">Glyn W. Humphreys</name></author></analytic><series><title level="j">Journal of cognitive neuroscience</title><idno type="eISSN">1530-8898</idno><imprint><date when="2014" type="published">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Female</term><term>Humans</term><term>Magnetic Resonance Imaging (methods)</term><term>Male</term><term>Pattern Recognition, Visual (physiology)</term><term>Photic Stimulation (methods)</term><term>Pilot Projects</term><term>Psychomotor Performance (physiology)</term><term>Visual Cortex (physiology)</term><term>Young Adult</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Magnetic Resonance Imaging</term><term>Photic Stimulation</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Pattern Recognition, Visual</term><term>Psychomotor Performance</term><term>Visual Cortex</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Female</term><term>Humans</term><term>Male</term><term>Pilot Projects</term><term>Young Adult</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Humans typically rely upon vision to identify object shape, but we can also recognize shape via touch (haptics). Our haptic shape recognition ability raises an intriguing question: To what extent do visual cortical shape recognition mechanisms support haptic object recognition? We addressed this question using a haptic fMRI repetition design, which allowed us to identify neuronal populations sensitive to the shape of objects that were touched but not seen. In addition to the expected shape-selective fMRI responses in dorsal frontoparietal areas, we observed widespread shape-selective responses in the ventral visual cortical pathway, including primary visual cortex. Our results indicate that shape processing via touch engages many of the same neural mechanisms as visual object recognition. The shape-specific repetition effects we observed in primary visual cortex show that visual sensory areas are engaged during the haptic exploration of object shape, even in the absence of concurrent shape-related visual input. Our results complement related findings in visually deprived individuals and highlight the fundamental role of the visual system in the processing of object shape.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">24345179</PMID><DateCreated><Year>2014</Year><Month>04</Month><Day>01</Day></DateCreated><DateCompleted><Year>2014</Year><Month>12</Month><Day>03</Day></DateCompleted><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1530-8898</ISSN><JournalIssue CitedMedium="Internet"><Volume>26</Volume><Issue>5</Issue><PubDate><Year>2014</Year><Month>May</Month></PubDate></JournalIssue><Title>Journal of cognitive neuroscience</Title><ISOAbbreviation>J Cogn Neurosci</ISOAbbreviation></Journal><ArticleTitle>Haptic shape processing in visual cortex.</ArticleTitle><Pagination><MedlinePgn>1154-67</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1162/jocn_a_00548</ELocationID><Abstract><AbstractText>Humans typically rely upon vision to identify object shape, but we can also recognize shape via touch (haptics). Our haptic shape recognition ability raises an intriguing question: To what extent do visual cortical shape recognition mechanisms support haptic object recognition? We addressed this question using a haptic fMRI repetition design, which allowed us to identify neuronal populations sensitive to the shape of objects that were touched but not seen. In addition to the expected shape-selective fMRI responses in dorsal frontoparietal areas, we observed widespread shape-selective responses in the ventral visual cortical pathway, including primary visual cortex. Our results indicate that shape processing via touch engages many of the same neural mechanisms as visual object recognition. The shape-specific repetition effects we observed in primary visual cortex show that visual sensory areas are engaged during the haptic exploration of object shape, even in the absence of concurrent shape-related visual input. Our results complement related findings in visually deprived individuals and highlight the fundamental role of the visual system in the processing of object shape.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Snow</LastName><ForeName>Jacqueline C</ForeName><Initials>JC</Initials><AffiliationInfo><Affiliation>University of Nevada.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Strother</LastName><ForeName>Lars</ForeName><Initials>L</Initials></Author><Author ValidYN="Y"><LastName>Humphreys</LastName><ForeName>Glyn W</ForeName><Initials>GW</Initials></Author></AuthorList><Language>eng</Language><GrantList CompleteYN="Y"><Grant><Agency>Biotechnology and Biological Sciences Research Council</Agency><Country>United Kingdom</Country></Grant></GrantList><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D016449">Randomized Controlled Trial</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2013</Year><Month>12</Month><Day>17</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>J Cogn Neurosci</MedlineTA><NlmUniqueID>8910747</NlmUniqueID><ISSNLinking>0898-929X</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000328">Adult</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="D008279">Magnetic Resonance Imaging</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000379">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008297">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D010364">Pattern Recognition, Visual</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D010775">Photic Stimulation</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000379">methods</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D010865">Pilot Projects</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D011597">Psychomotor Performance</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D014793">Visual Cortex</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D055815">Young Adult</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="aheadofprint"><Year>2013</Year><Month>12</Month><Day>17</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2013</Year><Month>12</Month><Day>19</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2013</Year><Month>12</Month><Day>19</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2014</Year><Month>12</Month><Day>15</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.1162/jocn_a_00548</ArticleId><ArticleId IdType="pubmed">24345179</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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