Journeying beyond classical somatosensory cortex
Identifieur interne : 000C13 ( PascalFrancis/Corpus ); précédent : 000C12; suivant : 000C14Journeying beyond classical somatosensory cortex
Auteurs : K. Sathian ; Simon LaceySource :
- Canadian journal of experimental psychology [ 1196-1961 ] ; 2007.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Visual cortical areas are involved in a variety of somatosensory tasks in the sighted, including tactile perception of two-dimensional patterns and motion, and haptic perception of three-dimensional objects. It is still unresolved whether visual imagery or modality-independent representations can better explain such cross-modal recruitment. However, these explanations are not necessarily in conflict with each other and might both be true, if imagery processes can access modality-independent representations. Greater visual cortical engagement in blind compared to sighted people is commonplace during language tasks, and also seems to occur during processing of tactile spatial information. Such engagement is even greater in the congenitally blind compared to the late blind, indicative of enhanced cross-modal plasticity during early development. At the other extreme, short-term visual deprivation of the normally sighted also leads to cross-modal plasticity. Altogether, the boundaries between sensory modalities appear to be flexible rather than immutable.
Notice en format standard (ISO 2709)
Pour connaître la documentation sur le format Inist Standard.
pA |
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Format Inist (serveur)
NO : | FRANCIS 770-07-31450 INIST |
---|---|
FT : | (Progrès dans la recherche sur le toucher) |
ET : | Journeying beyond classical somatosensory cortex |
AU : | SATHIAN (K.); LACEY (Simon); LEDERMAN (Susan J.); KLATZKY (Roberta L.) |
AF : | Emory University/Etats-Unis (1 aut., 2 aut.); Atlanta VAMC Rehabilitation R&D Center of Excellence/Etats-Unis (1 aut.); Queen's University/Kingston, ON/Canada (1 aut.); Carnegie Mellon University/Pittsburgh, PA/Etats-Unis (2 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Canadian journal of experimental psychology; ISSN 1196-1961; Canada; Da. 2007; Vol. 61; No. 3; Pp. 254-264; Bibl. 3 p.3/4 |
LA : | Anglais |
EA : | Visual cortical areas are involved in a variety of somatosensory tasks in the sighted, including tactile perception of two-dimensional patterns and motion, and haptic perception of three-dimensional objects. It is still unresolved whether visual imagery or modality-independent representations can better explain such cross-modal recruitment. However, these explanations are not necessarily in conflict with each other and might both be true, if imagery processes can access modality-independent representations. Greater visual cortical engagement in blind compared to sighted people is commonplace during language tasks, and also seems to occur during processing of tactile spatial information. Such engagement is even greater in the congenitally blind compared to the late blind, indicative of enhanced cross-modal plasticity during early development. At the other extreme, short-term visual deprivation of the normally sighted also leads to cross-modal plasticity. Altogether, the boundaries between sensory modalities appear to be flexible rather than immutable. |
CC : | 770B05E |
FD : | Sensibilité tactile; Cortex somatosensoriel; Article synthèse; Perception intermodale; Vision; Imagerie mentale; Perception espace; Cécité; Cortex visuel; Homme |
FG : | Perception; Encéphale; Système nerveux central; Voie somesthésique; Oeil pathologie; Trouble vision; Voie visuelle |
ED : | Tactile sensitivity; Somatosensory cortex; Review; Intermodal perception; Vision; Mental imagery; Space perception; Blindness; Visual cortex; Human |
EG : | Perception; Encephalon; Central nervous system; Somesthetic pathway; Eye disease; Vision disorder; Visual pathway |
SD : | Sensibilidad tactil; Corteza somatosensorial; Artículo síntesis; Percepción intermodal; Visión; Imaginería mental; Percepción espacio; Ceguera; Corteza visual; Hombre |
LO : | INIST-8744.354000160984780080 |
ID : | 770 |
Links to Exploration step
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<front><div type="abstract" xml:lang="en">Visual cortical areas are involved in a variety of somatosensory tasks in the sighted, including tactile perception of two-dimensional patterns and motion, and haptic perception of three-dimensional objects. It is still unresolved whether visual imagery or modality-independent representations can better explain such cross-modal recruitment. However, these explanations are not necessarily in conflict with each other and might both be true, if imagery processes can access modality-independent representations. Greater visual cortical engagement in blind compared to sighted people is commonplace during language tasks, and also seems to occur during processing of tactile spatial information. Such engagement is even greater in the congenitally blind compared to the late blind, indicative of enhanced cross-modal plasticity during early development. At the other extreme, short-term visual deprivation of the normally sighted also leads to cross-modal plasticity. Altogether, the boundaries between sensory modalities appear to be flexible rather than immutable.</div>
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