Abnormal sensorimotor integration in writer's cramp: Study of contingent negative variation
Identifieur interne : 005718 ( Main/Exploration ); précédent : 005717; suivant : 005719Abnormal sensorimotor integration in writer's cramp: Study of contingent negative variation
Auteurs : Ikeda [Japon] ; Hiroshi Shibasaki [Japon] ; Ryuji Kaji [Japon] ; Kiyohito Terada [Japon] ; Takashi Nagamine [Japon] ; Manabu Honda [Japon] ; Toshiaki Hamano [Japon] ; Jun Kimura [Japon]Source :
- Movement Disorders [ 0885-3185 ] ; 1996-11.
English descriptors
- KwdEn :
- Adult, Aged, Brain Mapping, Cerebral Cortex (physiopathology), Contingent Negative Variation (physiology), Contingent negative variation, Dystonia (physiopathology), Female, Functional Laterality (physiology), Handwriting, Humans, Idiopathic focal dystonia, Male, Middle Aged, Muscle Cramp (physiopathology), Writer's cramp.
- MESH :
- physiology : Contingent Negative Variation, Functional Laterality.
- physiopathology : Cerebral Cortex, Dystonia, Muscle Cramp.
- Adult, Aged, Brain Mapping, Female, Handwriting, Humans, Male, Middle Aged.
Abstract
To investigate the pathophysiology of idiopathic focal dystonia, we recorded contingent negative variation (CNV) as a physiological index of sensorimotor intergration in 14 right‐handed patients with writer's cramp and compared it with normative data. CNV was recorded in the S2 choice reaction time paradigm: Two kinds of auditory S2 (Go or No‐Go) were given 2 s after the auditory S1, and the subject reacted only to the Go signal by extending the wrist. In normal subjects, the late CNV amplitude had no difference at Cz between left‐and right‐hand tasks and was symmetric without significant amplitude laterality irrespective of the side of hand movement. In patients with writer's cramp, the late CNV amplitude at Cz was relatively larger for the left‐hand task than the right‐hand task (p<0.03), and a significant amplitude laterality of the late CNV (larger on the right) was present especially at the central area for the right‐hand task (p<0.03). Since the late CNV is known to be generated, at least inpart, from primary and supplementary motor cortices, the significant laterality of the late CNV seen with the right‐hand task in patients with writer's cramp might represent functional abnormality of motor cortices possibly as the result of basal ganglia function.
Url:
DOI: 10.1002/mds.870110614
Affiliations:
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xml:lang="fr">Japon</country><wicri:regionArea>Department of Brain Pathophysiology, Kyoto University School of Medicine, Kyoto</wicri:regionArea><wicri:noRegion>Kyoto</wicri:noRegion></affiliation></author><author><name sortKey="Nagamine, Takashi" sort="Nagamine, Takashi" uniqKey="Nagamine T" first="Takashi" last="Nagamine">Takashi Nagamine</name><affiliation wicri:level="1"><country xml:lang="fr">Japon</country><wicri:regionArea>Department of Brain Pathophysiology, Kyoto University School of Medicine, Kyoto</wicri:regionArea><wicri:noRegion>Kyoto</wicri:noRegion></affiliation></author><author><name sortKey="Honda, Manabu" sort="Honda, Manabu" uniqKey="Honda M" first="Manabu" last="Honda">Manabu Honda</name><affiliation wicri:level="1"><country xml:lang="fr">Japon</country><wicri:regionArea>Department of Brain Pathophysiology, Kyoto University School of Medicine, Kyoto</wicri:regionArea><wicri:noRegion>Kyoto</wicri:noRegion></affiliation></author><author><name sortKey="Hamano, Toshiaki" sort="Hamano, Toshiaki" uniqKey="Hamano T" first="Toshiaki" last="Hamano">Toshiaki Hamano</name><affiliation wicri:level="1"><country xml:lang="fr">Japon</country><wicri:regionArea>Department of Neurology, Kyoto University School of Medicine, Kyoto</wicri:regionArea><wicri:noRegion>Kyoto</wicri:noRegion></affiliation></author><author><name sortKey="Kimura, Jun" sort="Kimura, Jun" uniqKey="Kimura J" first="Jun" last="Kimura">Jun Kimura</name><affiliation wicri:level="1"><country xml:lang="fr">Japon</country><wicri:regionArea>Department of Neurology, Kyoto University School of Medicine, Kyoto</wicri:regionArea><wicri:noRegion>Kyoto</wicri:noRegion></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>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>Hoboken</pubPlace><date type="published" when="1996-11">1996-11</date><biblScope unit="vol">11</biblScope><biblScope unit="issue">6</biblScope><biblScope unit="page" from="683">683</biblScope><biblScope unit="page" to="690">690</biblScope></imprint><idno type="ISSN">0885-3185</idno></series><idno type="istex">194DC9392AF41D54ACBAEAFC20E1C436282C4949</idno><idno type="DOI">10.1002/mds.870110614</idno><idno type="ArticleID">MDS870110614</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0885-3185</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Aged</term><term>Brain Mapping</term><term>Cerebral Cortex (physiopathology)</term><term>Contingent Negative Variation (physiology)</term><term>Contingent negative variation</term><term>Dystonia (physiopathology)</term><term>Female</term><term>Functional Laterality (physiology)</term><term>Handwriting</term><term>Humans</term><term>Idiopathic focal dystonia</term><term>Male</term><term>Middle Aged</term><term>Muscle Cramp (physiopathology)</term><term>Writer's cramp</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Contingent Negative Variation</term><term>Functional Laterality</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Cerebral Cortex</term><term>Dystonia</term><term>Muscle Cramp</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Aged</term><term>Brain Mapping</term><term>Female</term><term>Handwriting</term><term>Humans</term><term>Male</term><term>Middle Aged</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">To investigate the pathophysiology of idiopathic focal dystonia, we recorded contingent negative variation (CNV) as a physiological index of sensorimotor intergration in 14 right‐handed patients with writer's cramp and compared it with normative data. CNV was recorded in the S2 choice reaction time paradigm: Two kinds of auditory S2 (Go or No‐Go) were given 2 s after the auditory S1, and the subject reacted only to the Go signal by extending the wrist. In normal subjects, the late CNV amplitude had no difference at Cz between left‐and right‐hand tasks and was symmetric without significant amplitude laterality irrespective of the side of hand movement. In patients with writer's cramp, the late CNV amplitude at Cz was relatively larger for the left‐hand task than the right‐hand task (p<0.03), and a significant amplitude laterality of the late CNV (larger on the right) was present especially at the central area for the right‐hand task (p<0.03). Since the late CNV is known to be generated, at least inpart, from primary and supplementary motor cortices, the significant laterality of the late CNV seen with the right‐hand task in patients with writer's cramp might represent functional abnormality of motor cortices possibly as the result of basal ganglia function.</div></front></TEI><affiliations><list><country><li>Japon</li></country></list><tree><country name="Japon"><noRegion><name sortKey="Ikeda" sort="Ikeda" uniqKey="Ikeda" last="Ikeda">Ikeda</name></noRegion><name sortKey="Hamano, Toshiaki" sort="Hamano, Toshiaki" uniqKey="Hamano T" first="Toshiaki" last="Hamano">Toshiaki Hamano</name><name sortKey="Honda, Manabu" sort="Honda, Manabu" uniqKey="Honda M" first="Manabu" last="Honda">Manabu Honda</name><name sortKey="Kaji, Ryuji" sort="Kaji, Ryuji" uniqKey="Kaji R" first="Ryuji" last="Kaji">Ryuji Kaji</name><name sortKey="Kimura, Jun" sort="Kimura, Jun" uniqKey="Kimura J" first="Jun" last="Kimura">Jun Kimura</name><name sortKey="Nagamine, Takashi" sort="Nagamine, Takashi" uniqKey="Nagamine T" first="Takashi" last="Nagamine">Takashi Nagamine</name><name sortKey="Shibasaki, Hiroshi" sort="Shibasaki, Hiroshi" uniqKey="Shibasaki H" first="Hiroshi" last="Shibasaki">Hiroshi Shibasaki</name><name sortKey="Terada, Kiyohito" sort="Terada, Kiyohito" uniqKey="Terada K" first="Kiyohito" last="Terada">Kiyohito Terada</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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