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Journeying beyond classical somatosensory cortex

Identifieur interne : 005991 ( Main/Exploration ); précédent : 005990; suivant : 005992

Journeying beyond classical somatosensory cortex

Auteurs : K. Sathian [États-Unis] ; Simon Lacey [États-Unis]

Source :

Canadian journal of experimental psychology [ 1196-1961 ] ; 2007.

RBID : Pascal:07-0523896

Descripteurs français

Pascal (Inist)
- Article synthèse, Cortex somatosensoriel, Cortex visuel, Cécité, Homme, Imagerie mentale, Perception espace, Perception intermodale, Sensibilité tactile, Cortex somatosensoriel, Article synthèse, Perception intermodale, Vision, Imagerie mentale, Perception espace, Cécité, Cortex visuel, Homme.
Wicri :
- topic : Homme.

English descriptors

KwdEn :
- Blindness, Human, Humans, Intermodal perception, Mental imagery, Review, Sensory Deprivation, Somatosensory Cortex (physiology), Somatosensory cortex, Space perception, Tactile sensitivity, Touch (physiology), Vision, Visual Cortex (physiology), Visual Perception (physiology), Visual cortex.
MESH :
- physiology : Somatosensory Cortex, Touch, Visual Cortex, Visual Perception.
- Humans, Sensory Deprivation.

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.

Affiliations:

États-Unis

Le document en format XML

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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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Serveur d'exploration sur les dispositifs haptiques

Journeying beyond classical somatosensory cortex

Journeying beyond classical somatosensory cortex

Source :

Descripteurs français

English descriptors

Abstract

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Pour manipuler ce document sous Unix (Dilib)

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