EMG-EMG coherence in writer's cramp.
Identifieur interne : 003950 ( PubMed/Curation ); précédent : 003949; suivant : 003951EMG-EMG coherence in writer's cramp.
Auteurs : Carla Cordivari [Royaume-Uni] ; Andrew J. Lees ; V Peter Misra ; Peter BrownSource :
- Movement disorders : official journal of the Movement Disorder Society [ 0885-3185 ] ; 2002.
English descriptors
- KwdEn :
- Adult, Dystonic Disorders (diagnosis), Dystonic Disorders (physiopathology), Electromyography (methods), Female, Hand (innervation), Hand (physiopathology), Humans, Male, Middle Aged, Motor Cortex (physiopathology), Muscle, Skeletal (innervation), Muscle, Skeletal (physiopathology), Neural Conduction (physiology).
- MESH :
- diagnosis : Dystonic Disorders.
- innervation : Hand, Muscle, Skeletal.
- methods : Electromyography.
- physiology : Neural Conduction.
- physiopathology : Dystonic Disorders, Hand, Motor Cortex, Muscle, Skeletal.
- Adult, Female, Humans, Male, Middle Aged.
Abstract
We investigated the extent to which oscillatory drives to muscle, believed to arise mainly from the motor cortex, are exaggerated and/or fail to react normally to peripheral stimulation in writer's cramp. We used the coherence between active forearm flexor and intrinsic hand muscles as our index of such drives before and after digital nerve stimulation of the dominant hand. The results in 8 patients with writer's cramp were compared with those in eight age- and sex-matched healthy subjects. We found no significant difference in either the strength of intermuscular coherence or its modulation by cutaneous stimulation between patients and healthy subjects during voluntary flexion of the wrist and extension-abduction of the fingers. Therefore, we were unable to provide evidence for a pervasive disturbance of oscillatory cortical motor outflow in writer's cramp.
DOI: 10.1002/mds.10212
PubMed: 12360551
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Lees</name></author><author><name sortKey="Misra, V Peter" sort="Misra, V Peter" uniqKey="Misra V" first="V Peter" last="Misra">V Peter Misra</name></author><author><name sortKey="Brown, Peter" sort="Brown, Peter" uniqKey="Brown P" first="Peter" last="Brown">Peter Brown</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2002">2002</date><idno type="RBID">pubmed:12360551</idno><idno type="pmid">12360551</idno><idno type="doi">10.1002/mds.10212</idno><idno type="wicri:Area/PubMed/Corpus">003950</idno><idno type="wicri:Area/PubMed/Curation">003950</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">EMG-EMG coherence in writer's cramp.</title><author><name sortKey="Cordivari, Carla" sort="Cordivari, Carla" uniqKey="Cordivari C" first="Carla" last="Cordivari">Carla Cordivari</name><affiliation wicri:level="1"><nlm:affiliation>Department of Clinical Neurophysiology, The National Hospital for Neurology and Neurosurgery, London, United Kingdom.</nlm:affiliation><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Clinical Neurophysiology, The National Hospital for Neurology and Neurosurgery, London</wicri:regionArea></affiliation></author><author><name sortKey="Lees, Andrew J" sort="Lees, Andrew J" uniqKey="Lees A" first="Andrew J" last="Lees">Andrew J. 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We used the coherence between active forearm flexor and intrinsic hand muscles as our index of such drives before and after digital nerve stimulation of the dominant hand. The results in 8 patients with writer's cramp were compared with those in eight age- and sex-matched healthy subjects. We found no significant difference in either the strength of intermuscular coherence or its modulation by cutaneous stimulation between patients and healthy subjects during voluntary flexion of the wrist and extension-abduction of the fingers. Therefore, we were unable to provide evidence for a pervasive disturbance of oscillatory cortical motor outflow in writer's cramp.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">12360551</PMID><DateCreated><Year>2002</Year><Month>10</Month><Day>02</Day></DateCreated><DateCompleted><Year>2003</Year><Month>01</Month><Day>08</Day></DateCompleted><DateRevised><Year>2004</Year><Month>11</Month><Day>17</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0885-3185</ISSN><JournalIssue CitedMedium="Print"><Volume>17</Volume><Issue>5</Issue><PubDate><Year>2002</Year><Month>Sep</Month></PubDate></JournalIssue><Title>Movement disorders : official journal of the Movement Disorder Society</Title><ISOAbbreviation>Mov. Disord.</ISOAbbreviation></Journal><ArticleTitle>EMG-EMG coherence in writer's cramp.</ArticleTitle><Pagination><MedlinePgn>1011-6</MedlinePgn></Pagination><Abstract><AbstractText>We investigated the extent to which oscillatory drives to muscle, believed to arise mainly from the motor cortex, are exaggerated and/or fail to react normally to peripheral stimulation in writer's cramp. We used the coherence between active forearm flexor and intrinsic hand muscles as our index of such drives before and after digital nerve stimulation of the dominant hand. The results in 8 patients with writer's cramp were compared with those in eight age- and sex-matched healthy subjects. We found no significant difference in either the strength of intermuscular coherence or its modulation by cutaneous stimulation between patients and healthy subjects during voluntary flexion of the wrist and extension-abduction of the fingers. 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