Enhanced effectiveness in visuo-haptic object-selective brain regions with increasing stimulus salience.
Identifieur interne : 000F59 ( PubMed/Checkpoint ); précédent : 000F58; suivant : 000F60Enhanced effectiveness in visuo-haptic object-selective brain regions with increasing stimulus salience.
Auteurs : Sunah Kim [États-Unis] ; Thomas W. JamesSource :
- Human brain mapping [ 1097-0193 ] ; 2010.
English descriptors
- KwdEn :
- Adult, Brain (physiology), Brain Mapping, Female, Humans, Magnetic Resonance Imaging, Male, Occipital Lobe (physiology), Parietal Lobe (physiology), Photic Stimulation, Physical Stimulation, Psychophysics, Reaction Time, Task Performance and Analysis, Temporal Lobe (physiology), Touch Perception (physiology), Visual Perception (physiology), Young Adult.
- MESH :
Abstract
The occipital and parietal lobes contain regions that are recruited for both visual and haptic object processing. The purpose of the present study was to characterize the underlying neural mechanisms for bimodal integration of vision and haptics in these visuo-haptic object-selective brain regions to find out whether these brain regions are sites of neuronal or areal convergence. Our sensory conditions consisted of visual-only (V), haptic-only (H), and visuo-haptic (VH), which allowed us to evaluate integration using the superadditivity metric. We also presented each stimulus condition at two different levels of signal-to-noise ratio or salience. The salience manipulation allowed us to assess integration using the rule of inverse effectiveness. We were able to localize previously described visuo-haptic object-selective regions in the lateral occipital cortex (lateral occipital tactile-visual area) and the intraparietal sulcus, and also localized a new region in the left anterior fusiform gyrus. There was no evidence of superadditivity with the VH stimulus at either level of salience in any of the regions. There was, however, a strong effect of salience on multisensory enhancement: the response to the VH stimulus was more enhanced at higher salience across all regions. In other words, the regions showed enhanced integration of the VH stimulus with increasing effectiveness of the unisensory stimuli. We called the effect "enhanced effectiveness." The presence of enhanced effectiveness in visuo-haptic object-selective brain regions demonstrates neuronal convergence of visual and haptic sensory inputs for the purpose of processing object shape.
DOI: 10.1002/hbm.20897
PubMed: 19830683
Affiliations:
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James</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="doi">10.1002/hbm.20897</idno><idno type="RBID">pubmed:19830683</idno><idno type="pmid">19830683</idno><idno type="wicri:Area/PubMed/Corpus">001206</idno><idno type="wicri:Area/PubMed/Curation">001206</idno><idno type="wicri:Area/PubMed/Checkpoint">000F59</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Enhanced effectiveness in visuo-haptic object-selective brain regions with increasing stimulus salience.</title><author><name sortKey="Kim, Sunah" sort="Kim, Sunah" uniqKey="Kim S" first="Sunah" last="Kim">Sunah Kim</name><affiliation wicri:level="1"><nlm:affiliation>Cognitive Science Program, Indiana University, Bloomington, Indiana 47405, USA. suakim@indiana.edu</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Cognitive Science Program, Indiana University, Bloomington, Indiana 47405</wicri:regionArea><wicri:noRegion>Indiana 47405</wicri:noRegion></affiliation></author><author><name sortKey="James, Thomas W" sort="James, Thomas W" uniqKey="James T" first="Thomas W" last="James">Thomas W. 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The purpose of the present study was to characterize the underlying neural mechanisms for bimodal integration of vision and haptics in these visuo-haptic object-selective brain regions to find out whether these brain regions are sites of neuronal or areal convergence. Our sensory conditions consisted of visual-only (V), haptic-only (H), and visuo-haptic (VH), which allowed us to evaluate integration using the superadditivity metric. We also presented each stimulus condition at two different levels of signal-to-noise ratio or salience. The salience manipulation allowed us to assess integration using the rule of inverse effectiveness. We were able to localize previously described visuo-haptic object-selective regions in the lateral occipital cortex (lateral occipital tactile-visual area) and the intraparietal sulcus, and also localized a new region in the left anterior fusiform gyrus. There was no evidence of superadditivity with the VH stimulus at either level of salience in any of the regions. There was, however, a strong effect of salience on multisensory enhancement: the response to the VH stimulus was more enhanced at higher salience across all regions. In other words, the regions showed enhanced integration of the VH stimulus with increasing effectiveness of the unisensory stimuli. We called the effect "enhanced effectiveness." The presence of enhanced effectiveness in visuo-haptic object-selective brain regions demonstrates neuronal convergence of visual and haptic sensory inputs for the purpose of processing object shape.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">19830683</PMID><DateCreated><Year>2010</Year><Month>04</Month><Day>20</Day></DateCreated><DateCompleted><Year>2010</Year><Month>07</Month><Day>08</Day></DateCompleted><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1097-0193</ISSN><JournalIssue CitedMedium="Internet"><Volume>31</Volume><Issue>5</Issue><PubDate><Year>2010</Year><Month>May</Month></PubDate></JournalIssue><Title>Human brain mapping</Title><ISOAbbreviation>Hum Brain Mapp</ISOAbbreviation></Journal><ArticleTitle>Enhanced effectiveness in visuo-haptic object-selective brain regions with increasing stimulus salience.</ArticleTitle><Pagination><MedlinePgn>678-93</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1002/hbm.20897</ELocationID><Abstract><AbstractText>The occipital and parietal lobes contain regions that are recruited for both visual and haptic object processing. The purpose of the present study was to characterize the underlying neural mechanisms for bimodal integration of vision and haptics in these visuo-haptic object-selective brain regions to find out whether these brain regions are sites of neuronal or areal convergence. Our sensory conditions consisted of visual-only (V), haptic-only (H), and visuo-haptic (VH), which allowed us to evaluate integration using the superadditivity metric. We also presented each stimulus condition at two different levels of signal-to-noise ratio or salience. The salience manipulation allowed us to assess integration using the rule of inverse effectiveness. We were able to localize previously described visuo-haptic object-selective regions in the lateral occipital cortex (lateral occipital tactile-visual area) and the intraparietal sulcus, and also localized a new region in the left anterior fusiform gyrus. There was no evidence of superadditivity with the VH stimulus at either level of salience in any of the regions. There was, however, a strong effect of salience on multisensory enhancement: the response to the VH stimulus was more enhanced at higher salience across all regions. In other words, the regions showed enhanced integration of the VH stimulus with increasing effectiveness of the unisensory stimuli. We called the effect "enhanced effectiveness." The presence of enhanced effectiveness in visuo-haptic object-selective brain regions demonstrates neuronal convergence of visual and haptic sensory inputs for the purpose of processing object shape.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Kim</LastName><ForeName>Sunah</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>Cognitive Science Program, Indiana University, Bloomington, Indiana 47405, USA. suakim@indiana.edu</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>James</LastName><ForeName>Thomas W</ForeName><Initials>TW</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Hum Brain Mapp</MedlineTA><NlmUniqueID>9419065</NlmUniqueID><ISSNLinking>1065-9471</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000328">Adult</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D001921">Brain</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D001931">Brain Mapping</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></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008297">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D009778">Occipital Lobe</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D010296">Parietal Lobe</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D010775">Photic Stimulation</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D010812">Physical Stimulation</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D011601">Psychophysics</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D011930">Reaction Time</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D013647">Task Performance and Analysis</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D013702">Temporal Lobe</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D055698">Touch Perception</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D014796">Visual Perception</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="entrez"><Year>2009</Year><Month>10</Month><Day>16</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>10</Month><Day>16</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2010</Year><Month>7</Month><Day>9</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.1002/hbm.20897</ArticleId><ArticleId IdType="pubmed">19830683</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country></list><tree><noCountry><name sortKey="James, Thomas W" sort="James, Thomas W" uniqKey="James T" first="Thomas W" last="James">Thomas W. James</name></noCountry><country name="États-Unis"><noRegion><name sortKey="Kim, Sunah" sort="Kim, Sunah" uniqKey="Kim S" first="Sunah" last="Kim">Sunah Kim</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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