Feeling form: the neural basis of haptic shape perception.
Identifieur interne : 000200 ( Main/Exploration ); précédent : 000199; suivant : 000201Feeling form: the neural basis of haptic shape perception.
Auteurs : Jeffrey M. Yau [États-Unis] ; Sung Soo Kim [États-Unis] ; Pramodsingh H. Thakur ; Sliman J. Bensmaia [États-Unis]Source :
- Journal of neurophysiology [ 1522-1598 ] ; 2016.
Abstract
The tactile perception of the shape of objects critically guides our ability to interact with them. In this review, we describe how shape information is processed as it ascends the somatosensory neuraxis of primates. At the somatosensory periphery, spatial form is represented in the spatial patterns of activation evoked across populations of mechanoreceptive afferents. In the cerebral cortex, neurons respond selectively to particular spatial features, like orientation and curvature. While feature selectivity of neurons in the earlier processing stages can be understood in terms of linear receptive field models, higher order somatosensory neurons exhibit nonlinear response properties that result in tuning for more complex geometrical features. In fact, tactile shape processing bears remarkable analogies to its visual counterpart and the two may rely on shared neural circuitry. Furthermore, one of the unique aspects of primate somatosensation is that it contains a deformable sensory sheet. Because the relative positions of cutaneous mechanoreceptors depend on the conformation of the hand, the haptic perception of three-dimensional objects requires the integration of cutaneous and proprioceptive signals, an integration that is observed throughout somatosensory cortex.
DOI: 10.1152/jn.00598.2015
PubMed: 26581869
Affiliations:
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Yau</name><affiliation wicri:level="1"><nlm:affiliation>Department of Neuroscience, Baylor College of Medicine, Houston, Texas; Jeffrey.yau@bcm.edu.</nlm:affiliation><country wicri:rule="url">États-Unis</country><wicri:regionArea>Department of Neuroscience, Baylor College of Medicine, Houston</wicri:regionArea><wicri:noRegion>Houston</wicri:noRegion></affiliation></author><author><name sortKey="Kim, Sung Soo" sort="Kim, Sung Soo" uniqKey="Kim S" first="Sung Soo" last="Kim">Sung Soo Kim</name><affiliation wicri:level="2"><nlm:affiliation>Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, Virginia;</nlm:affiliation><country xml:lang="fr">États-Unis</country><placeName><region type="state">Virginie</region></placeName><wicri:cityArea>Janelia Research Campus, Howard Hughes Medical Institute, Ashburn</wicri:cityArea></affiliation></author><author><name sortKey="Thakur, Pramodsingh H" sort="Thakur, Pramodsingh H" uniqKey="Thakur P" first="Pramodsingh H" last="Thakur">Pramodsingh H. 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Thakur</name><affiliation><nlm:affiliation>Boston Scientific Corporation, St Paul, Minnesota; and.</nlm:affiliation><wicri:noCountry code="subField">Minnesota; and</wicri:noCountry></affiliation></author><author><name sortKey="Bensmaia, Sliman J" sort="Bensmaia, Sliman J" uniqKey="Bensmaia S" first="Sliman J" last="Bensmaia">Sliman J. Bensmaia</name><affiliation wicri:level="2"><nlm:affiliation>Department of Organismal Biology and Anatomy, University of Chicago, Chicago, Illinois.</nlm:affiliation><country xml:lang="fr">États-Unis</country><placeName><region type="state">Illinois</region></placeName><wicri:cityArea>Department of Organismal Biology and Anatomy, University of Chicago, Chicago</wicri:cityArea></affiliation></author></analytic><series><title level="j">Journal of neurophysiology</title><idno type="eISSN">1522-1598</idno><imprint><date when="2016" type="published">2016</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The tactile perception of the shape of objects critically guides our ability to interact with them. In this review, we describe how shape information is processed as it ascends the somatosensory neuraxis of primates. 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