Abnormalities of spatial and temporal sensory discrimination in writer's cramp
Identifieur interne : 003111 ( Istex/Checkpoint ); précédent : 003110; suivant : 003112Abnormalities 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 ] ; 2001-01.
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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's cramp. Mov. Disord. 16:94–99, 2001. © 2001 Movement Disorder Society.
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DOI: 10.1002/1531-8257(200101)16:1<94::AID-MDS1020>3.0.CO;2-O
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Sanger</name></author><author><name sortKey="Tarsy, Daniel" sort="Tarsy, Daniel" uniqKey="Tarsy D" first="Daniel" last="Tarsy">Daniel Tarsy</name></author><author><name sortKey="Pascual Eone, Alvaro" sort="Pascual Eone, Alvaro" uniqKey="Pascual Eone A" first="Alvaro" last="Pascual-Leone">Alvaro Pascual-Leone</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:2E962B08067E44982C23CC6A82497350AAB44652</idno><date when="2001" year="2001">2001</date><idno type="doi">10.1002/1531-8257(200101)16:1<94::AID-MDS1020>3.0.CO;2-O</idno><idno type="url">https://api.istex.fr/document/2E962B08067E44982C23CC6A82497350AAB44652/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001C99</idno><idno type="wicri:Area/Istex/Curation">001C99</idno><idno type="wicri:Area/Istex/Checkpoint">003111</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Abnormalities of spatial and temporal sensory discrimination in writer's cramp</title><author><name sortKey="Sanger, Terence D" sort="Sanger, Terence D" uniqKey="Sanger T" first="Terence D." last="Sanger">Terence D. Sanger</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Child Neurology and Movement Disorders, Stanford University Medical Center, Stanford, California</wicri:regionArea><placeName><region type="state">Californie</region></placeName></affiliation></author><author><name sortKey="Tarsy, Daniel" sort="Tarsy, Daniel" uniqKey="Tarsy D" first="Daniel" last="Tarsy">Daniel Tarsy</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Behavioral Neurology Unit and Movement Disorders Center, Department of Neurology, Beth Israel Deaconess Medical Center, Boston, Massachusetts</wicri:regionArea><placeName><region type="state">Massachusetts</region></placeName></affiliation></author><author><name sortKey="Pascual Eone, Alvaro" sort="Pascual Eone, Alvaro" uniqKey="Pascual Eone A" first="Alvaro" last="Pascual-Leone">Alvaro Pascual-Leone</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Behavioral Neurology Unit and Movement Disorders Center, Department of Neurology, Beth Israel Deaconess Medical Center, Boston, Massachusetts</wicri:regionArea><placeName><region type="state">Massachusetts</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Movement Disorders</title><title level="j" type="sub">Official Journal of the Movement Disorder Society</title><title level="j" type="abbrev">Mov. Disord.</title><idno type="ISSN">0885-3185</idno><idno type="eISSN">1531-8257</idno><imprint><publisher>John Wiley & Sons, Inc.</publisher><pubPlace>New York</pubPlace><date type="published" when="2001-01">2001-01</date><biblScope unit="vol">16</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="94">94</biblScope><biblScope unit="page" to="99">99</biblScope></imprint><idno type="ISSN">0885-3185</idno></series><idno type="istex">2E962B08067E44982C23CC6A82497350AAB44652</idno><idno type="DOI">10.1002/1531-8257(200101)16:1<94::AID-MDS1020>3.0.CO;2-O</idno><idno type="ArticleID">MDS1020</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0885-3185</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>focal dystonia</term><term>sensory discrimination</term><term>sensory receptive field</term><term>tactile sensation</term><term>writer's cramp</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><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's cramp. Mov. Disord. 16:94–99, 2001. © 2001 Movement Disorder Society.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Californie</li><li>Massachusetts</li></region></list><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 Eone, Alvaro" sort="Pascual Eone, Alvaro" uniqKey="Pascual Eone 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></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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