Journeying beyond classical somatosensory cortex.
Identifieur interne : 001556 ( PubMed/Corpus ); précédent : 001555; suivant : 001557Journeying beyond classical somatosensory cortex.
Auteurs : K. Sathian ; Simon LaceySource :
- Canadian journal of experimental psychology = Revue canadienne de psychologie expérimentale [ 1196-1961 ] ; 2007.
English descriptors
- KwdEn :
- MESH :
- physiology : Somatosensory Cortex, Touch, Visual Cortex, Visual Perception.
- Humans, Sensory Deprivation.
Abstract
Visual cortical areas are involved in a variety of somatosensory tasks in the sighted, including tactile perception of two-dimensional patterns and motion, and haptic perception of three-dimensional objects. It is still unresolved whether visual imagery or modality-independent representations can better explain such cross-modal recruitment. However, these explanations are not necessarily in conflict with each other and might both be true, if imagery processes can access modality-independent representations. Greater visual cortical engagement in blind compared to sighted people is commonplace during language tasks, and also seems to occur during processing of tactile spatial information. Such engagement is even greater in the congenitally blind compared to the late blind, indicative of enhanced cross-modal plasticity during early development. At the other extreme, short-term visual deprivation of the normally sighted also leads to cross-modal plasticity. Altogether, the boundaries between sensory modalities appear to be flexible rather than immutable.
PubMed: 17974319
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pubmed:17974319Le document en format XML
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Sathian</name><affiliation><nlm:affiliation>Department of Neurology, Emory University, Atlanta, GA 30322, USA. krish.sathian@emory.edu</nlm:affiliation></affiliation></author><author><name sortKey="Lacey, Simon" sort="Lacey, Simon" uniqKey="Lacey S" first="Simon" last="Lacey">Simon Lacey</name></author></analytic><series><title level="j">Canadian journal of experimental psychology = Revue canadienne de psychologie expérimentale</title><idno type="ISSN">1196-1961</idno><imprint><date when="2007" type="published">2007</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Humans</term><term>Sensory Deprivation</term><term>Somatosensory Cortex (physiology)</term><term>Touch (physiology)</term><term>Visual Cortex (physiology)</term><term>Visual Perception (physiology)</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Somatosensory Cortex</term><term>Touch</term><term>Visual Cortex</term><term>Visual Perception</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Humans</term><term>Sensory Deprivation</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Visual cortical areas are involved in a variety of somatosensory tasks in the sighted, including tactile perception of two-dimensional patterns and motion, and haptic perception of three-dimensional objects. It is still unresolved whether visual imagery or modality-independent representations can better explain such cross-modal recruitment. However, these explanations are not necessarily in conflict with each other and might both be true, if imagery processes can access modality-independent representations. Greater visual cortical engagement in blind compared to sighted people is commonplace during language tasks, and also seems to occur during processing of tactile spatial information. Such engagement is even greater in the congenitally blind compared to the late blind, indicative of enhanced cross-modal plasticity during early development. At the other extreme, short-term visual deprivation of the normally sighted also leads to cross-modal plasticity. Altogether, the boundaries between sensory modalities appear to be flexible rather than immutable.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">17974319</PMID><DateCreated><Year>2007</Year><Month>11</Month><Day>02</Day></DateCreated><DateCompleted><Year>2007</Year><Month>12</Month><Day>07</Day></DateCompleted><Article PubModel="Print"><Journal><ISSN IssnType="Print">1196-1961</ISSN><JournalIssue CitedMedium="Print"><Volume>61</Volume><Issue>3</Issue><PubDate><Year>2007</Year><Month>Sep</Month></PubDate></JournalIssue><Title>Canadian journal of experimental psychology = Revue canadienne de psychologie expérimentale</Title><ISOAbbreviation>Can J Exp Psychol</ISOAbbreviation></Journal><ArticleTitle>Journeying beyond classical somatosensory cortex.</ArticleTitle><Pagination><MedlinePgn>254-64</MedlinePgn></Pagination><Abstract><AbstractText>Visual cortical areas are involved in a variety of somatosensory tasks in the sighted, including tactile perception of two-dimensional patterns and motion, and haptic perception of three-dimensional objects. It is still unresolved whether visual imagery or modality-independent representations can better explain such cross-modal recruitment. However, these explanations are not necessarily in conflict with each other and might both be true, if imagery processes can access modality-independent representations. Greater visual cortical engagement in blind compared to sighted people is commonplace during language tasks, and also seems to occur during processing of tactile spatial information. Such engagement is even greater in the congenitally blind compared to the late blind, indicative of enhanced cross-modal plasticity during early development. At the other extreme, short-term visual deprivation of the normally sighted also leads to cross-modal plasticity. Altogether, the boundaries between sensory modalities appear to be flexible rather than immutable.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Sathian</LastName><ForeName>K</ForeName><Initials>K</Initials><AffiliationInfo><Affiliation>Department of Neurology, Emory University, Atlanta, GA 30322, USA. krish.sathian@emory.edu</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Lacey</LastName><ForeName>Simon</ForeName><Initials>S</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D052061">Research Support, N.I.H., Extramural</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Canada</Country><MedlineTA>Can J Exp Psychol</MedlineTA><NlmUniqueID>9315513</NlmUniqueID><ISSNLinking>1196-1961</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D006801">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D012683">Sensory Deprivation</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D013003">Somatosensory Cortex</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D014110">Touch</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D014793">Visual Cortex</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D014796">Visual Perception</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2007</Year><Month>11</Month><Day>3</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2007</Year><Month>12</Month><Day>8</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2007</Year><Month>11</Month><Day>3</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">17974319</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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