Neuronal Basis for Object Location in the Vibrissa Scanning Sensorimotor System
Identifieur interne : 001C87 ( Ncbi/Merge ); précédent : 001C86; suivant : 001C88Neuronal Basis for Object Location in the Vibrissa Scanning Sensorimotor System
Auteurs : David Kleinfeld [États-Unis] ; Martin Deschênes [Canada]Source :
- Neuron [ 0896-6273 ] ; 2011.
Abstract
An essential issue in perception is how the location of an object is estimated from tactile signals in the context of self-generated changes in sensor configuration. Here, we review the pathways and dynamics of neuronal signals that encode touch in the rodent vibrissa sensorimotor system. Rodents rhythmically scan an array of long, facial hairs across a region of interest. Behavioral evidence shows that these animals maintain knowledge of the azimuthal position of their vibrissae. Electrophysiological measurements have identified a reafferent signal of the azimuth that is coded in normalized coordinates, broadcast throughout primary sensory cortex and provides strong modulation of signals of vibrissa contact. Efferent signals in motor cortex report the range of the scan. Collectively, these signals allow the rodent to form a percept of object location.
Url:
DOI: 10.1016/j.neuron.2011.10.009
PubMed: 22078505
PubMed Central: 3971931
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<pmc-dir>properties manuscript</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-journal-id">8809320</journal-id><journal-id journal-id-type="pubmed-jr-id">1600</journal-id><journal-id journal-id-type="nlm-ta">Neuron</journal-id><journal-id journal-id-type="iso-abbrev">Neuron</journal-id><journal-title-group><journal-title>Neuron</journal-title></journal-title-group><issn pub-type="ppub">0896-6273</issn><issn pub-type="epub">1097-4199</issn></journal-meta><article-meta><article-id pub-id-type="pmid">22078505</article-id><article-id pub-id-type="pmc">3971931</article-id><article-id pub-id-type="doi">10.1016/j.neuron.2011.10.009</article-id><article-id pub-id-type="manuscript">NIHMS334967</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Neuronal Basis for Object Location in the Vibrissa Scanning Sensorimotor System</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Kleinfeld</surname><given-names>David</given-names></name><xref ref-type="aff" rid="A1">1</xref><xref ref-type="corresp" rid="CR1">*</xref></contrib><contrib contrib-type="author"><name><surname>Deschênes</surname><given-names>Martin</given-names></name><xref ref-type="aff" rid="A2">2</xref><xref ref-type="corresp" rid="CR1">*</xref></contrib></contrib-group><aff id="A1"><label>1</label>Department of Physics and Section of Neurobiology, University of California, San Diego, La Jolla, CA 92093, USA</aff><aff id="A2"><label>2</label>Departments of Psychiatry and Neuroscience, Laval University, Quebec City, QC G1J 2G3, Canada</aff><author-notes><corresp id="CR1"><label>*</label>Correspondence: <email>dk@physics.ucsd.edu</email> (D.K.), <email>martin.deschenes@crulrg.ulaval.ca</email> (M.D.)</corresp></author-notes><pub-date pub-type="nihms-submitted"><day>22</day><month>8</month><year>2013</year></pub-date><pub-date pub-type="ppub"><day>3</day><month>11</month><year>2011</year></pub-date><pub-date pub-type="pmc-release"><day>01</day><month>4</month><year>2014</year></pub-date><volume>72</volume><issue>3</issue><fpage>455</fpage><lpage>468</lpage><pmc-comment>elocation-id from pubmed: 10.1016/j.neuron.2011.10.009</pmc-comment>
<permissions><copyright-statement>©2011 Elsevier Inc.</copyright-statement><copyright-year>2011</copyright-year></permissions><abstract><p id="P1">An essential issue in perception is how the location of an object is estimated from tactile signals in the context of self-generated changes in sensor configuration. Here, we review the pathways and dynamics of neuronal signals that encode touch in the rodent vibrissa sensorimotor system. Rodents rhythmically scan an array of long, facial hairs across a region of interest. Behavioral evidence shows that these animals maintain knowledge of the azimuthal position of their vibrissae. Electrophysiological measurements have identified a reafferent signal of the azimuth that is coded in normalized coordinates, broadcast throughout primary sensory cortex and provides strong modulation of signals of vibrissa contact. Efferent signals in motor cortex report the range of the scan. Collectively, these signals allow the rodent to form a percept of object location.</p></abstract></article-meta></front></pmc><affiliations><list><country><li>Canada</li><li>États-Unis</li></country><region><li>Californie</li></region></list><tree><country name="États-Unis"><region name="Californie"><name sortKey="Kleinfeld, David" sort="Kleinfeld, David" uniqKey="Kleinfeld D" first="David" last="Kleinfeld">David Kleinfeld</name></region></country><country name="Canada"><noRegion><name sortKey="Deschenes, Martin" sort="Deschenes, Martin" uniqKey="Deschenes M" first="Martin" last="Deschênes">Martin Deschênes</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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