Are visual texture-selective areas recruited during haptic texture discrimination?
Identifieur interne : 001601 ( Main/Merge ); précédent : 001600; suivant : 001602Are visual texture-selective areas recruited during haptic texture discrimination?
Auteurs : Samantha K. Podrebarac [Canada] ; Melvyn A. Goodale [Canada] ; Jacqueline C. Snow [États-Unis]Source :
- NeuroImage : (Orlando, Fla.) [ 1053-8119 ] ; 2014.
Descripteurs français
- Pascal (Inist)
English descriptors
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Abstract
Shape and texture provide cues to object identity, both when objects are explored using vision and via touch (haptics). Visual shape information is processed within the lateral occipital complex (LOC), while texture is processed in medial regions of the collateral sulcus (CoS). Evidence indicates that the LOC is recruited during both visual and haptic shape processing. Here we used functional magnetic resonance imaging (fMRI) to examine whether 'visual' texture-selective areas are similarly recruited when observers discriminate texture via touch. We used a blocked design in which participants discriminated either the texture or shape of unfamiliar 3-dimensional (3D) objects, via vision or touch. We observed significant haptic texture-selective fMRI responses in medial occipitotemporal cortex within areas adjacent to, but not overlapping, those recruited during visual texture discrimination. Although areas of ventromedial temporal cortex are recruited during visual and haptic texture perception, these areas appear to be spatially distinct and modality-specific.
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Pascal:14-0187420Le document en format XML
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Goodale</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>The Brain and Mind Institute, The University of Western Ontario</s1><s2>London, ON N6A 5B7</s2><s3>CAN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>London, ON N6A 5B7</wicri:noRegion></affiliation></author><author><name sortKey="Snow, Jacqueline C" sort="Snow, Jacqueline C" uniqKey="Snow J" first="Jacqueline C." last="Snow">Jacqueline C. Snow</name><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Department of Psychology, University of Nevada, Reno, 1664 N. 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Podrebarac</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>The Brain and Mind Institute, The University of Western Ontario</s1><s2>London, ON N6A 5B7</s2><s3>CAN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>London, ON N6A 5B7</wicri:noRegion></affiliation></author><author><name sortKey="Goodale, Melvyn A" sort="Goodale, Melvyn A" uniqKey="Goodale M" first="Melvyn A." last="Goodale">Melvyn A. Goodale</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>The Brain and Mind Institute, The University of Western Ontario</s1><s2>London, ON N6A 5B7</s2><s3>CAN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>London, ON N6A 5B7</wicri:noRegion></affiliation></author><author><name sortKey="Snow, Jacqueline C" sort="Snow, Jacqueline C" uniqKey="Snow J" first="Jacqueline C." last="Snow">Jacqueline C. Snow</name><affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Department of Psychology, University of Nevada, Reno, 1664 N. 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Visual shape information is processed within the lateral occipital complex (LOC), while texture is processed in medial regions of the collateral sulcus (CoS). Evidence indicates that the LOC is recruited during both visual and haptic shape processing. Here we used functional magnetic resonance imaging (fMRI) to examine whether 'visual' texture-selective areas are similarly recruited when observers discriminate texture via touch. We used a blocked design in which participants discriminated either the texture or shape of unfamiliar 3-dimensional (3D) objects, via vision or touch. We observed significant haptic texture-selective fMRI responses in medial occipitotemporal cortex within areas adjacent to, but not overlapping, those recruited during visual texture discrimination. Although areas of ventromedial temporal cortex are recruited during visual and haptic texture perception, these areas appear to be spatially distinct and modality-specific.</div></front></TEI><affiliations><list><country><li>Canada</li><li>États-Unis</li></country><region><li>Nevada</li></region></list><tree><country name="Canada"><noRegion><name sortKey="Podrebarac, Samantha K" sort="Podrebarac, Samantha K" uniqKey="Podrebarac S" first="Samantha K." last="Podrebarac">Samantha K. Podrebarac</name></noRegion><name sortKey="Goodale, Melvyn A" sort="Goodale, Melvyn A" uniqKey="Goodale M" first="Melvyn A." last="Goodale">Melvyn A. Goodale</name></country><country name="États-Unis"><region name="Nevada"><name sortKey="Snow, Jacqueline C" sort="Snow, Jacqueline C" uniqKey="Snow J" first="Jacqueline C." last="Snow">Jacqueline C. Snow</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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