Visuo-haptic object-related activation in the ventral visual pathway.
Identifieur interne : 007457 ( Main/Exploration ); précédent : 007456; suivant : 007458Visuo-haptic object-related activation in the ventral visual pathway.
Auteurs : A. Amedi [Israël] ; R. Malach ; T. Hendler ; S. Peled ; E. ZoharySource :
- Nature neuroscience [ 1097-6256 ] ; 2001.
English descriptors
- KwdEn :
- Adult, Brain (anatomy & histology), Brain (metabolism), Brain (physiology), Brain Mapping, Female, Functional Laterality (physiology), Humans, Magnetic Resonance Imaging, Male, Middle Aged, Pattern Recognition, Visual (physiology), Photic Stimulation, Physical Stimulation, Psychomotor Performance (physiology), Stereognosis (physiology), Visual Pathways (anatomy & histology), Visual Pathways (metabolism).
- MESH :
- anatomy & histology : Brain, Visual Pathways.
- metabolism : Brain, Visual Pathways.
- physiology : Brain, Functional Laterality, Pattern Recognition, Visual, Psychomotor Performance, Stereognosis.
- Adult, Brain Mapping, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Photic Stimulation, Physical Stimulation.
Abstract
The ventral pathway is involved in primate visual object recognition. In humans, a central stage in this pathway is an occipito-temporal region termed the lateral occipital complex (LOC), which is preferentially activated by visual objects compared to scrambled images or textures. However, objects have characteristic attributes (such as three-dimensional shape) that can be perceived both visually and haptically. Therefore, object-related brain areas may hold a representation of objects in both modalities. Using fMRI to map object-related brain regions, we found robust and consistent somatosensory activation in the occipito-temporal cortex. This region showed clear preference for objects compared to textures in both modalities. Most somatosensory object-selective voxels overlapped a part of the visual object-related region LOC. Thus, we suggest that neuronal populations in the occipito-temporal cortex may constitute a multimodal object-related network.
DOI: 10.1038/85201
PubMed: 11224551
Affiliations:
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Amedi</name><affiliation wicri:level="1"><nlm:affiliation>Neurobiology Department, Life Science Institute and Center for Neural Computation, Hebrew University, Givat Ram, Jerusalem 91904, Israel.</nlm:affiliation><country xml:lang="fr">Israël</country><wicri:regionArea>Neurobiology Department, Life Science Institute and Center for Neural Computation, Hebrew University, Givat Ram, Jerusalem 91904</wicri:regionArea><wicri:noRegion>Jerusalem 91904</wicri:noRegion></affiliation></author><author><name sortKey="Malach, R" sort="Malach, R" uniqKey="Malach R" first="R" last="Malach">R. Malach</name></author><author><name sortKey="Hendler, T" sort="Hendler, T" uniqKey="Hendler T" first="T" last="Hendler">T. Hendler</name></author><author><name sortKey="Peled, S" sort="Peled, S" uniqKey="Peled S" first="S" last="Peled">S. Peled</name></author><author><name sortKey="Zohary, E" sort="Zohary, E" uniqKey="Zohary E" first="E" last="Zohary">E. Zohary</name></author></analytic><series><title level="j">Nature neuroscience</title><idno type="ISSN">1097-6256</idno><imprint><date when="2001" type="published">2001</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Brain (anatomy & histology)</term><term>Brain (metabolism)</term><term>Brain (physiology)</term><term>Brain Mapping</term><term>Female</term><term>Functional Laterality (physiology)</term><term>Humans</term><term>Magnetic Resonance Imaging</term><term>Male</term><term>Middle Aged</term><term>Pattern Recognition, Visual (physiology)</term><term>Photic Stimulation</term><term>Physical Stimulation</term><term>Psychomotor Performance (physiology)</term><term>Stereognosis (physiology)</term><term>Visual Pathways (anatomy & histology)</term><term>Visual Pathways (metabolism)</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Brain</term><term>Visual Pathways</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Brain</term><term>Visual Pathways</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Brain</term><term>Functional Laterality</term><term>Pattern Recognition, Visual</term><term>Psychomotor Performance</term><term>Stereognosis</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Brain Mapping</term><term>Female</term><term>Humans</term><term>Magnetic Resonance Imaging</term><term>Male</term><term>Middle Aged</term><term>Photic Stimulation</term><term>Physical Stimulation</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The ventral pathway is involved in primate visual object recognition. In humans, a central stage in this pathway is an occipito-temporal region termed the lateral occipital complex (LOC), which is preferentially activated by visual objects compared to scrambled images or textures. However, objects have characteristic attributes (such as three-dimensional shape) that can be perceived both visually and haptically. Therefore, object-related brain areas may hold a representation of objects in both modalities. Using fMRI to map object-related brain regions, we found robust and consistent somatosensory activation in the occipito-temporal cortex. This region showed clear preference for objects compared to textures in both modalities. Most somatosensory object-selective voxels overlapped a part of the visual object-related region LOC. Thus, we suggest that neuronal populations in the occipito-temporal cortex may constitute a multimodal object-related network.</div></front></TEI><affiliations><list><country><li>Israël</li></country></list><tree><noCountry><name sortKey="Hendler, T" sort="Hendler, T" uniqKey="Hendler T" first="T" last="Hendler">T. Hendler</name><name sortKey="Malach, R" sort="Malach, R" uniqKey="Malach R" first="R" last="Malach">R. Malach</name><name sortKey="Peled, S" sort="Peled, S" uniqKey="Peled S" first="S" last="Peled">S. Peled</name><name sortKey="Zohary, E" sort="Zohary, E" uniqKey="Zohary E" first="E" last="Zohary">E. Zohary</name></noCountry><country name="Israël"><noRegion><name sortKey="Amedi, A" sort="Amedi, A" uniqKey="Amedi A" first="A" last="Amedi">A. Amedi</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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