The Differing Impact of Multisensory and Unisensory Integration on Behavior
Identifieur interne : 001105 ( Ncbi/Merge ); précédent : 001104; suivant : 001106The Differing Impact of Multisensory and Unisensory Integration on Behavior
Auteurs : Guy Gingras ; Benjamin A. Rowland ; Barry E. SteinSource :
- The Journal of neuroscience : the official journal of the Society for Neuroscience [ 0270-6474 ] ; 2009.
Abstract
Pooling and synthesizing signals across different senses often enhances responses to the event from which they are derived. Here we examine whether multisensory response enhancements are attributable to a redundant target effect (two stimuli rather than one), or if there is some special quality inherent in the combination of cues from different senses. To test these possibilities, the performance of animals in localizing and detecting spatiotemporally concordant visual and auditory stimuli was examined when these stimuli were presented individually (visual or auditory), or in cross-modal (visual-auditory) and within-modal (visual-visual, auditory-auditory) combinations. Performance enhancements proved to be far greater for combinations of cross-modal than within-modal stimuli and support the idea that the behavioral products derived from multisensory integration are not attributable to simple target redundancy. One likely explanation is that while cross-modal signals offer statistically independent samples of the environment, within-modal signals can exhibit substantial covariance, and consequently multisensory integration can yield more substantial error reduction than unisensory integration.
Url:
DOI: 10.1523/JNEUROSCI.4120-08.2009
PubMed: 19369558
PubMed Central: 2678542
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<front><journal-meta><journal-id journal-id-type="nlm-journal-id">8102140</journal-id><journal-id journal-id-type="pubmed-jr-id">5035</journal-id><journal-id journal-id-type="nlm-ta">J Neurosci</journal-id><journal-title>The Journal of neuroscience : the official journal of the Society for Neuroscience</journal-title><issn pub-type="ppub">0270-6474</issn><issn pub-type="epub">1529-2401</issn></journal-meta><article-meta><article-id pub-id-type="pmid">19369558</article-id><article-id pub-id-type="pmc">2678542</article-id><article-id pub-id-type="doi">10.1523/JNEUROSCI.4120-08.2009</article-id><article-id pub-id-type="manuscript">NIHMS109792</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title>The Differing Impact of Multisensory and Unisensory Integration on Behavior</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Gingras</surname><given-names>Guy</given-names></name><xref ref-type="aff" rid="A1">1</xref><xref ref-type="author-notes" rid="FN1">2</xref></contrib><contrib contrib-type="author"><name><surname>Rowland</surname><given-names>Benjamin A.</given-names></name><xref ref-type="aff" rid="A1">1</xref></contrib><contrib contrib-type="author"><name><surname>Stein</surname><given-names>Barry E.</given-names></name><xref ref-type="aff" rid="A1">1</xref></contrib></contrib-group><contrib-group><contrib contrib-type="editor"><name><surname>Ebner</surname><given-names>Timothy J.</given-names><prefix>Dr.</prefix></name></contrib><aff id="A2">Department of Neuroscience University of Minnesota 6−145 Jackson Hall 321 Church Street, SE Minneapolis, Minnesota 55455 U.S.A. Phone : (612) 626−2205 Email:<email>jneurosci@neuroscience.umn.edu</email></aff></contrib-group><aff id="A1"><label>1</label> Department of Neurobiology and Anatomy, Wake Forest University School of Medicine, Winston-Salem, North Carolina, 27157</aff><author-notes><fn fn-type="present-address" id="FN1"><label>2</label><p id="P1">Current address; Department of Neurology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, 19104</p></fn><corresp id="CR1"><bold>Corresponding author:</bold> Dr. Barry E. Stein Department of Neurobiology and Anatomy Wake Forest University School of Medicine Winston-Salem, N.C. 27157 Phone: (336) 716−4368 Fax: (336) 716−4534 E-mail: <email>bestein@wfubmc.edu</email></corresp></author-notes><pub-date pub-type="nihms-submitted"><day>14</day><month>4</month><year>2009</year></pub-date><pub-date pub-type="ppub"><day>15</day><month>4</month><year>2009</year></pub-date><pub-date pub-type="pmc-release"><day>15</day><month>10</month><year>2009</year></pub-date><volume>29</volume><issue>15</issue><fpage>4897</fpage><lpage>4902</lpage><abstract><p id="P2">Pooling and synthesizing signals across different senses often enhances responses to the event from which they are derived. Here we examine whether multisensory response enhancements are attributable to a redundant target effect (two stimuli rather than one), or if there is some special quality inherent in the combination of cues from different senses. To test these possibilities, the performance of animals in localizing and detecting spatiotemporally concordant visual and auditory stimuli was examined when these stimuli were presented individually (visual or auditory), or in cross-modal (visual-auditory) and within-modal (visual-visual, auditory-auditory) combinations. Performance enhancements proved to be far greater for combinations of cross-modal than within-modal stimuli and support the idea that the behavioral products derived from multisensory integration are not attributable to simple target redundancy. One likely explanation is that while cross-modal signals offer statistically independent samples of the environment, within-modal signals can exhibit substantial covariance, and consequently multisensory integration can yield more substantial error reduction than unisensory integration.</p></abstract><kwd-group><kwd>Multisensory Integration</kwd><kwd>Unisensory Integration</kwd><kwd>Multimodal</kwd><kwd>Vision</kwd><kwd>Audition</kwd><kwd>Cross-modal</kwd></kwd-group><contract-num rid="EY1">R01 EY016716-03</contract-num><contract-sponsor id="EY1">National Eye Institute : NEI</contract-sponsor></article-meta></front></pmc><affiliations><list></list><tree><noCountry><name sortKey="Gingras, Guy" sort="Gingras, Guy" uniqKey="Gingras G" first="Guy" last="Gingras">Guy Gingras</name><name sortKey="Rowland, Benjamin A" sort="Rowland, Benjamin A" uniqKey="Rowland B" first="Benjamin A." last="Rowland">Benjamin A. Rowland</name><name sortKey="Stein, Barry E" sort="Stein, Barry E" uniqKey="Stein B" first="Barry E." last="Stein">Barry E. Stein</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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