HapticV1, PascalFrancis, Corpus, bibRecord, 000554

Shape from sound: Evidence for a shape operator in the lateral occipital cortex

Identifieur interne : 000554 ( PascalFrancis/Corpus ); précédent : 000553; suivant : 000555

Shape from sound: Evidence for a shape operator in the lateral occipital cortex

Auteurs : Thomas W. James ; Ryan A. Stevenson ; Sunah Kim ; Ross M. Vanderklok ; Karin Harman James

Source :

Neuropsychologia [ 0028-3932 ] ; 2011.

RBID : Francis:11-0311190

Descripteurs français

Pascal (Inist)
- Cortex occipital, Perception intermodale, Imagerie RMN, Imagerie fonctionnelle, Encéphale, Cortex visuel, Reconnaissance, Audition, Vision, Forme stimulus, Homme, Imagerie par résonance magnétique fonctionnelle.

English descriptors

KwdEn :
- Encephalon, Functional imaging, Functional magnetic resonance imaging, Hearing, Human, Intermodal perception, Nuclear magnetic resonance imaging, Occipital cortex, Recognition, Stimulus shape, Vision, Visual cortex.

Abstract

A recent view of cortical functional specialization suggests that the primary organizing principle of the cortex is based on task requirements, rather than sensory modality. Consistent with this view, recent evidence suggests that a region of the lateral occipitotemporal cortex (LO) may process object shape information regardless of the modality of sensory input. There is considerable evidence that area LO is involved in processing visual and haptic shape information. However, sound can also carry acoustic cues to an object's shape, for example, when a sound is produced by an object's impact with a surface. Thus, the current study used auditory stimuli that were created from recordings of objects impacting a hard surface to test the hypothesis that area LO is also involved in auditory shape processing. The objects were of two shapes, rods and balls, and of two materials, metal and wood. Subjects were required to categorize the impact sounds in one of three tasks, (1) by the shape of the object while ignoring material, (2) by the material of the object while ignoring shape, or (3) by using all the information available. Area LO was more strongly recruited when subjects discriminated impact sounds based on the shape of the object that made them, compared to when subjects discriminated those same sounds based on material. The current findings suggest that activation in area LO is shape selective regardless of sensory input modality, and are consistent with an emerging theory of perceptual functional specialization of the brain that is task-based rather than sensory modality-based.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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Format Inist (serveur)

NO :	FRANCIS 11-0311190 INIST
ET :	Shape from sound: Evidence for a shape operator in the lateral occipital cortex
AU :	JAMES (Thomas W.); STEVENSON (Ryan A.); KIM (Sunah); VANDERKLOK (Ross M.); HARMAN JAMES (Karin)
AF :	Department of Psychological and Brain Sciences, Indiana University/Etats-Unis (1 aut., 2 aut., 4 aut., 5 aut.); Program in Neuroscience, Indiana University/Etats-Unis (1 aut., 2 aut., 3 aut., 5 aut.); Cognitive Science Program, Indiana University/Etats-Unis (1 aut., 3 aut., 5 aut.); Department of Speech and Hearing Sciences, Vanderbilt School of Medicine/Etats-Unis (2 aut.); Vision Science Program, School of Optometry, University of California/Berkeley/Etats-Unis (3 aut.)
DT :	Publication en série; Niveau analytique
SO :	Neuropsychologia; ISSN 0028-3932; Coden NUPSA6; Royaume-Uni; Da. 2011; Vol. 49; No. 7; Pp. 1807-1815; Bibl. 3/4 p.
LA :	Anglais
EA :	A recent view of cortical functional specialization suggests that the primary organizing principle of the cortex is based on task requirements, rather than sensory modality. Consistent with this view, recent evidence suggests that a region of the lateral occipitotemporal cortex (LO) may process object shape information regardless of the modality of sensory input. There is considerable evidence that area LO is involved in processing visual and haptic shape information. However, sound can also carry acoustic cues to an object's shape, for example, when a sound is produced by an object's impact with a surface. Thus, the current study used auditory stimuli that were created from recordings of objects impacting a hard surface to test the hypothesis that area LO is also involved in auditory shape processing. The objects were of two shapes, rods and balls, and of two materials, metal and wood. Subjects were required to categorize the impact sounds in one of three tasks, (1) by the shape of the object while ignoring material, (2) by the material of the object while ignoring shape, or (3) by using all the information available. Area LO was more strongly recruited when subjects discriminated impact sounds based on the shape of the object that made them, compared to when subjects discriminated those same sounds based on material. The current findings suggest that activation in area LO is shape selective regardless of sensory input modality, and are consistent with an emerging theory of perceptual functional specialization of the brain that is task-based rather than sensory modality-based.
CC :	770B05C; 770B03D; 770B05H
FD :	Cortex occipital; Perception intermodale; Imagerie RMN; Imagerie fonctionnelle; Encéphale; Cortex visuel; Reconnaissance; Audition; Vision; Forme stimulus; Homme; Imagerie par résonance magnétique fonctionnelle
FG :	Système nerveux central; Cognition; Voie visuelle; Perception
ED :	Occipital cortex; Intermodal perception; Nuclear magnetic resonance imaging; Functional imaging; Encephalon; Visual cortex; Recognition; Hearing; Vision; Stimulus shape; Human; Functional magnetic resonance imaging
EG :	Central nervous system; Cognition; Visual pathway; Perception
SD :	Corteza occipital; Percepción intermodal; Imaginería RMN; Imaginería funcional; Encéfalo; Corteza visual; Reconocimiento; Audición; Visión; Forma estímulo; Hombre; Resonancia magnética nuclear funcional
LO :	INIST-11143.354000190354510180
ID :	11-0311190

Links to Exploration step

Francis:11-0311190

Le document en format XML

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<front><div type="abstract" xml:lang="en">A recent view of cortical functional specialization suggests that the primary organizing principle of the cortex is based on task requirements, rather than sensory modality. Consistent with this view, recent evidence suggests that a region of the lateral occipitotemporal cortex (LO) may process object shape information regardless of the modality of sensory input. There is considerable evidence that area LO is involved in processing visual and haptic shape information. However, sound can also carry acoustic cues to an object's shape, for example, when a sound is produced by an object's impact with a surface. Thus, the current study used auditory stimuli that were created from recordings of objects impacting a hard surface to test the hypothesis that area LO is also involved in auditory shape processing. The objects were of two shapes, rods and balls, and of two materials, metal and wood. Subjects were required to categorize the impact sounds in one of three tasks, (1) by the shape of the object while ignoring material, (2) by the material of the object while ignoring shape, or (3) by using all the information available. Area LO was more strongly recruited when subjects discriminated impact sounds based on the shape of the object that made them, compared to when subjects discriminated those same sounds based on material. The current findings suggest that activation in area LO is shape selective regardless of sensory input modality, and are consistent with an emerging theory of perceptual functional specialization of the brain that is task-based rather than sensory modality-based.</div>
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<fA08 i1="01" i2="1" l="ENG"><s1>Shape from sound: Evidence for a shape operator in the lateral occipital cortex</s1>
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<s5>40</s5>
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<server><NO>FRANCIS 11-0311190 INIST</NO>
<ET>Shape from sound: Evidence for a shape operator in the lateral occipital cortex</ET>
<AU>JAMES (Thomas W.); STEVENSON (Ryan A.); KIM (Sunah); VANDERKLOK (Ross M.); HARMAN JAMES (Karin)</AU>
<AF>Department of Psychological and Brain Sciences, Indiana University/Etats-Unis (1 aut., 2 aut., 4 aut., 5 aut.); Program in Neuroscience, Indiana University/Etats-Unis (1 aut., 2 aut., 3 aut., 5 aut.); Cognitive Science Program, Indiana University/Etats-Unis (1 aut., 3 aut., 5 aut.); Department of Speech and Hearing Sciences, Vanderbilt School of Medicine/Etats-Unis (2 aut.); Vision Science Program, School of Optometry, University of California/Berkeley/Etats-Unis (3 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Neuropsychologia; ISSN 0028-3932; Coden NUPSA6; Royaume-Uni; Da. 2011; Vol. 49; No. 7; Pp. 1807-1815; Bibl. 3/4 p.</SO>
<LA>Anglais</LA>
<EA>A recent view of cortical functional specialization suggests that the primary organizing principle of the cortex is based on task requirements, rather than sensory modality. Consistent with this view, recent evidence suggests that a region of the lateral occipitotemporal cortex (LO) may process object shape information regardless of the modality of sensory input. There is considerable evidence that area LO is involved in processing visual and haptic shape information. However, sound can also carry acoustic cues to an object's shape, for example, when a sound is produced by an object's impact with a surface. Thus, the current study used auditory stimuli that were created from recordings of objects impacting a hard surface to test the hypothesis that area LO is also involved in auditory shape processing. The objects were of two shapes, rods and balls, and of two materials, metal and wood. Subjects were required to categorize the impact sounds in one of three tasks, (1) by the shape of the object while ignoring material, (2) by the material of the object while ignoring shape, or (3) by using all the information available. Area LO was more strongly recruited when subjects discriminated impact sounds based on the shape of the object that made them, compared to when subjects discriminated those same sounds based on material. The current findings suggest that activation in area LO is shape selective regardless of sensory input modality, and are consistent with an emerging theory of perceptual functional specialization of the brain that is task-based rather than sensory modality-based.</EA>
<CC>770B05C; 770B03D; 770B05H</CC>
<FD>Cortex occipital; Perception intermodale; Imagerie RMN; Imagerie fonctionnelle; Encéphale; Cortex visuel; Reconnaissance; Audition; Vision; Forme stimulus; Homme; Imagerie par résonance magnétique fonctionnelle</FD>
<FG>Système nerveux central; Cognition; Voie visuelle; Perception</FG>
<ED>Occipital cortex; Intermodal perception; Nuclear magnetic resonance imaging; Functional imaging; Encephalon; Visual cortex; Recognition; Hearing; Vision; Stimulus shape; Human; Functional magnetic resonance imaging</ED>
<EG>Central nervous system; Cognition; Visual pathway; Perception</EG>
<SD>Corteza occipital; Percepción intermodal; Imaginería RMN; Imaginería funcional; Encéfalo; Corteza visual; Reconocimiento; Audición; Visión; Forma estímulo; Hombre; Resonancia magnética nuclear funcional</SD>
<LO>INIST-11143.354000190354510180</LO>
<ID>11-0311190</ID>
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Shape from sound: Evidence for a shape operator in the lateral occipital cortex

Shape from sound: Evidence for a shape operator in the lateral occipital cortex

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