MovDisordV3, Main, Merge, bibRecord, 006F69

Abnormalities of spatial and temporal sensory discrimination in Writer's cramp

Identifieur interne : 006F69 ( Main/Merge ); précédent : 006F68; suivant : 006F70

Abnormalities of spatial and temporal sensory discrimination in Writer's cramp

Auteurs : Terence D. Sanger [États-Unis] ; Daniel Tarsy [États-Unis] ; Alvaro Pascual-Leone [États-Unis]

Source :

Movement disorders [ 0885-3185 ] ; 2001.

RBID : Pascal:01-0138556

Descripteurs français

Pascal (Inist)
- Crampe écrivain, Sensibilité tactile, Discrimination, Stimulus, Electrique, Physiopathologie, Homme.
Wicri :
- topic : Homme.

English descriptors

KwdEn :
- Discrimination, Electric, Human, Pathophysiology, Stimulus, Tactile sensitivity, Writer cramp.

Abstract

Clinical observations of patients with writer's cramp suggest that abnormalities of the sensory system may be a frequent finding in this disorder. Neurophysiological data from an animal model of focal dystonia have revealed cells in somatosensory cortex with enlarged and overlapping tactile receptive fields. However, psychophysical studies so far have been unable to document a clinical correlate supporting a similar enlargement of receptive fields in humans. We compared the fingertip discrimination of the orientation of fine spatial gratings between writer's cramp and control subjects and found a significant decrease in grating sensitivity in the patients, consistent with the possibility of enlarged tactile receptive fields. In addition, we duplicated previous experiments showing an abnormality of tactile temporal discrimination. The results provide psychophysical measures which may relate to the development of sensory cortical reorganization in patients with writer cramp.

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Pascal:01-0138556

Le document en format XML

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<author><name sortKey="Pascual Leone, Alvaro" sort="Pascual Leone, Alvaro" uniqKey="Pascual Leone A" first="Alvaro" last="Pascual-Leone">Alvaro Pascual-Leone</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Abnormalities of spatial and temporal sensory discrimination in Writer's cramp</title>
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<author><name sortKey="Tarsy, Daniel" sort="Tarsy, Daniel" uniqKey="Tarsy D" first="Daniel" last="Tarsy">Daniel Tarsy</name>
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<author><name sortKey="Pascual Leone, Alvaro" sort="Pascual Leone, Alvaro" uniqKey="Pascual Leone A" first="Alvaro" last="Pascual-Leone">Alvaro Pascual-Leone</name>
<affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Behavioral Neurology Unit and Movement Disorders Center, Department of Neurology, Beth Israel Deaconess Medical Center.</s1>
<s2>Boston, Massachusetts</s2>
<s3>USA</s3>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
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<placeName><region type="state">Massachusetts</region>
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<series><title level="j" type="main">Movement disorders</title>
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<seriesStmt><title level="j" type="main">Movement disorders</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Discrimination</term>
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<term>Pathophysiology</term>
<term>Stimulus</term>
<term>Tactile sensitivity</term>
<term>Writer cramp</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Crampe écrivain</term>
<term>Sensibilité tactile</term>
<term>Discrimination</term>
<term>Stimulus</term>
<term>Electrique</term>
<term>Physiopathologie</term>
<term>Homme</term>
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<front><div type="abstract" xml:lang="en">Clinical observations of patients with writer's cramp suggest that abnormalities of the sensory system may be a frequent finding in this disorder. Neurophysiological data from an animal model of focal dystonia have revealed cells in somatosensory cortex with enlarged and overlapping tactile receptive fields. However, psychophysical studies so far have been unable to document a clinical correlate supporting a similar enlargement of receptive fields in humans. We compared the fingertip discrimination of the orientation of fine spatial gratings between writer's cramp and control subjects and found a significant decrease in grating sensitivity in the patients, consistent with the possibility of enlarged tactile receptive fields. In addition, we duplicated previous experiments showing an abnormality of tactile temporal discrimination. The results provide psychophysical measures which may relate to the development of sensory cortical reorganization in patients with writer cramp.</div>
</front>
</TEI>
<affiliations><list><country><li>États-Unis</li>
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<region><li>Californie</li>
<li>Massachusetts</li>
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<tree><country name="États-Unis"><region name="Californie"><name sortKey="Sanger, Terence D" sort="Sanger, Terence D" uniqKey="Sanger T" first="Terence D." last="Sanger">Terence D. Sanger</name>
</region>
<name sortKey="Pascual Leone, Alvaro" sort="Pascual Leone, Alvaro" uniqKey="Pascual Leone A" first="Alvaro" last="Pascual-Leone">Alvaro Pascual-Leone</name>
<name sortKey="Tarsy, Daniel" sort="Tarsy, Daniel" uniqKey="Tarsy D" first="Daniel" last="Tarsy">Daniel Tarsy</name>
</country>
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</affiliations>
</record>

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	Movement Disorders (revue)
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Movement Disorders (revue)

Abnormalities of spatial and temporal sensory discrimination in Writer's cramp

Abnormalities of spatial and temporal sensory discrimination in Writer's cramp

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri