The posterior parietal cortex remaps touch into external space.
Identifieur interne : 000E67 ( PubMed/Checkpoint ); précédent : 000E66; suivant : 000E68The posterior parietal cortex remaps touch into external space.
Auteurs : Elena Aza N [Espagne] ; Matthew R. Longo ; Salvador Soto-Faraco ; Patrick HaggardSource :
- Current biology : CB [ 1879-0445 ] ; 2010.
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Abstract
Localizing tactile events in external space is required for essential functions such as orienting, haptic exploration, and goal-directed action in peripersonal space. In order to map somatosensory input into a spatiotopic representation, information about skin location must be integrated with proprioceptive information about body posture. We investigated the neural bases of this tactile remapping mechanism in humans by disrupting neural activity in the putative human homolog of the monkey ventral intraparietal area (hVIP), within the right posterior parietal cortex (rPPC), which is thought to house external spatial representations. Participants judged the elevation of touches on their (unseen) forearm relative to touches on their face. Arm posture was passively changed along the vertical axis, so that elevation judgments required the use of an external reference frame. Single-pulse transcranial magnetic stimulation (TMS) over the rPPC significantly impaired performance compared to a control site (vertex). Crucially, proprioceptive judgments of arm elevation or tactile localization on the skin remained unaffected by rPPC TMS. This selective disruption of tactile remapping suggests a distinct computational process dissociable from pure proprioceptive and somatosensory localization. Furthermore, this finding highlights the causal role of human PPC, putatively VIP, in remapping touch into external space.
DOI: 10.1016/j.cub.2010.05.063
PubMed: 20637619
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Longo</name></author><author><name sortKey="Soto Faraco, Salvador" sort="Soto Faraco, Salvador" uniqKey="Soto Faraco S" first="Salvador" last="Soto-Faraco">Salvador Soto-Faraco</name></author><author><name sortKey="Haggard, Patrick" sort="Haggard, Patrick" uniqKey="Haggard P" first="Patrick" last="Haggard">Patrick Haggard</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="doi">10.1016/j.cub.2010.05.063</idno><idno type="RBID">pubmed:20637619</idno><idno type="pmid">20637619</idno><idno type="wicri:Area/PubMed/Corpus">001061</idno><idno type="wicri:Area/PubMed/Curation">001061</idno><idno type="wicri:Area/PubMed/Checkpoint">000E67</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">The posterior parietal cortex remaps touch into external space.</title><author><name sortKey="Aza N, Elena" sort="Aza N, Elena" uniqKey="Aza N E" first="Elena" last="Aza N">Elena Aza N</name><affiliation wicri:level="2"><nlm:affiliation>Departament de Psicologia Bàsica, Universitat de Barcelona, 08035 Barcelona, Spain.</nlm:affiliation><country xml:lang="fr">Espagne</country><wicri:regionArea>Departament de Psicologia Bàsica, Universitat de Barcelona, 08035 Barcelona</wicri:regionArea><placeName><region nuts="2" type="communauté">Catalogne</region></placeName></affiliation></author><author><name sortKey="Longo, Matthew R" sort="Longo, Matthew R" uniqKey="Longo M" first="Matthew R" last="Longo">Matthew R. Longo</name></author><author><name sortKey="Soto Faraco, Salvador" sort="Soto Faraco, Salvador" uniqKey="Soto Faraco S" first="Salvador" last="Soto-Faraco">Salvador Soto-Faraco</name></author><author><name sortKey="Haggard, Patrick" sort="Haggard, Patrick" uniqKey="Haggard P" first="Patrick" last="Haggard">Patrick Haggard</name></author></analytic><series><title level="j">Current biology : CB</title><idno type="eISSN">1879-0445</idno><imprint><date when="2010" type="published">2010</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Afferent Pathways (physiology)</term><term>Animals</term><term>Bayes Theorem</term><term>Brain Mapping</term><term>Haplorhini (physiology)</term><term>Humans</term><term>Models, Neurological</term><term>Models, Statistical</term><term>Physical Stimulation</term><term>Skin Physiological Processes</term><term>Space Perception (physiology)</term><term>Touch Perception (physiology)</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Afferent Pathways</term><term>Haplorhini</term><term>Space Perception</term><term>Touch Perception</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Bayes Theorem</term><term>Brain Mapping</term><term>Humans</term><term>Models, Neurological</term><term>Models, Statistical</term><term>Physical Stimulation</term><term>Skin Physiological Processes</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Localizing tactile events in external space is required for essential functions such as orienting, haptic exploration, and goal-directed action in peripersonal space. In order to map somatosensory input into a spatiotopic representation, information about skin location must be integrated with proprioceptive information about body posture. We investigated the neural bases of this tactile remapping mechanism in humans by disrupting neural activity in the putative human homolog of the monkey ventral intraparietal area (hVIP), within the right posterior parietal cortex (rPPC), which is thought to house external spatial representations. Participants judged the elevation of touches on their (unseen) forearm relative to touches on their face. Arm posture was passively changed along the vertical axis, so that elevation judgments required the use of an external reference frame. Single-pulse transcranial magnetic stimulation (TMS) over the rPPC significantly impaired performance compared to a control site (vertex). Crucially, proprioceptive judgments of arm elevation or tactile localization on the skin remained unaffected by rPPC TMS. This selective disruption of tactile remapping suggests a distinct computational process dissociable from pure proprioceptive and somatosensory localization. Furthermore, this finding highlights the causal role of human PPC, putatively VIP, in remapping touch into external space.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">20637619</PMID><DateCreated><Year>2010</Year><Month>07</Month><Day>26</Day></DateCreated><DateCompleted><Year>2010</Year><Month>11</Month><Day>26</Day></DateCompleted><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1879-0445</ISSN><JournalIssue CitedMedium="Internet"><Volume>20</Volume><Issue>14</Issue><PubDate><Year>2010</Year><Month>Jul</Month><Day>27</Day></PubDate></JournalIssue><Title>Current biology : CB</Title><ISOAbbreviation>Curr. Biol.</ISOAbbreviation></Journal><ArticleTitle>The posterior parietal cortex remaps touch into external space.</ArticleTitle><Pagination><MedlinePgn>1304-9</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.cub.2010.05.063</ELocationID><Abstract><AbstractText>Localizing tactile events in external space is required for essential functions such as orienting, haptic exploration, and goal-directed action in peripersonal space. In order to map somatosensory input into a spatiotopic representation, information about skin location must be integrated with proprioceptive information about body posture. We investigated the neural bases of this tactile remapping mechanism in humans by disrupting neural activity in the putative human homolog of the monkey ventral intraparietal area (hVIP), within the right posterior parietal cortex (rPPC), which is thought to house external spatial representations. Participants judged the elevation of touches on their (unseen) forearm relative to touches on their face. Arm posture was passively changed along the vertical axis, so that elevation judgments required the use of an external reference frame. Single-pulse transcranial magnetic stimulation (TMS) over the rPPC significantly impaired performance compared to a control site (vertex). Crucially, proprioceptive judgments of arm elevation or tactile localization on the skin remained unaffected by rPPC TMS. This selective disruption of tactile remapping suggests a distinct computational process dissociable from pure proprioceptive and somatosensory localization. Furthermore, this finding highlights the causal role of human PPC, putatively VIP, in remapping touch into external space.</AbstractText><CopyrightInformation>2010 Elsevier Ltd. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Azañón</LastName><ForeName>Elena</ForeName><Initials>E</Initials><AffiliationInfo><Affiliation>Departament de Psicologia Bàsica, Universitat de Barcelona, 08035 Barcelona, Spain.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Longo</LastName><ForeName>Matthew R</ForeName><Initials>MR</Initials></Author><Author ValidYN="Y"><LastName>Soto-Faraco</LastName><ForeName>Salvador</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Haggard</LastName><ForeName>Patrick</ForeName><Initials>P</Initials></Author></AuthorList><Language>eng</Language><GrantList CompleteYN="Y"><Grant><GrantID>BB/D009529/1</GrantID><Agency>Biotechnology and Biological Sciences Research Council</Agency><Country>United Kingdom</Country></Grant></GrantList><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2010</Year><Month>07</Month><Day>15</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Curr Biol</MedlineTA><NlmUniqueID>9107782</NlmUniqueID><ISSNLinking>0960-9822</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><CommentsCorrectionsList><CommentsCorrections RefType="CommentIn"><RefSource>Curr Biol. 2010 Jul 27;20(14):R604-6</RefSource><PMID Version="1">20656204</PMID></CommentsCorrections></CommentsCorrectionsList><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000344">Afferent Pathways</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000818">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D001499">Bayes Theorem</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D001931">Brain Mapping</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000882">Haplorhini</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D006801">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D008959">Models, Neurological</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D015233">Models, Statistical</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D010812">Physical Stimulation</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D055928">Skin Physiological Processes</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D013028">Space Perception</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D055698">Touch Perception</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2010</Year><Month>3</Month><Day>18</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2010</Year><Month>5</Month><Day>18</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2010</Year><Month>5</Month><Day>19</Day></PubMedPubDate><PubMedPubDate PubStatus="aheadofprint"><Year>2010</Year><Month>7</Month><Day>15</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2010</Year><Month>7</Month><Day>20</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2010</Year><Month>7</Month><Day>20</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>12</Month><Day>14</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pii">S0960-9822(10)00712-8</ArticleId><ArticleId IdType="doi">10.1016/j.cub.2010.05.063</ArticleId><ArticleId IdType="pubmed">20637619</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Espagne</li></country><region><li>Catalogne</li></region></list><tree><noCountry><name sortKey="Haggard, Patrick" sort="Haggard, Patrick" uniqKey="Haggard P" first="Patrick" last="Haggard">Patrick Haggard</name><name sortKey="Longo, Matthew R" sort="Longo, Matthew R" uniqKey="Longo M" first="Matthew R" last="Longo">Matthew R. Longo</name><name sortKey="Soto Faraco, Salvador" sort="Soto Faraco, Salvador" uniqKey="Soto Faraco S" first="Salvador" last="Soto-Faraco">Salvador Soto-Faraco</name></noCountry><country name="Espagne"><region name="Catalogne"><name sortKey="Aza N, Elena" sort="Aza N, Elena" uniqKey="Aza N E" first="Elena" last="Aza N">Elena Aza N</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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