Corticospinal excitability during motor imagery of a simple tonic finger movement in patients with writer's cramp.
Identifieur interne : 001365 ( Ncbi/Curation ); précédent : 001364; suivant : 001366Corticospinal excitability during motor imagery of a simple tonic finger movement in patients with writer's cramp.
Auteurs : Angelo Quartarone [Italie] ; Sergio Bagnato ; Vincenzo Rizzo ; Francesca Morgante ; Antonino Sant'Angelo ; Domenica Crupi ; Marcello Romano ; Corrado Messina ; Alfredo Berardelli ; Paolo GirlandaSource :
- Movement disorders : official journal of the Movement Disorder Society [ 0885-3185 ] ; 2005.
English descriptors
- KwdEn :
- Adult, Aged, Dystonic Disorders (physiopathology), Electromyography (methods), Evoked Potentials, Motor (physiology), Female, Fingers (physiopathology), Functional Laterality, Humans, Imagination (physiology), Male, Middle Aged, Motor Cortex (physiopathology), Movement (physiology), Pyramidal Tracts (physiopathology).
- MESH :
- methods : Electromyography.
- physiology : Evoked Potentials, Motor, Imagination, Movement.
- physiopathology : Dystonic Disorders, Fingers, Motor Cortex, Pyramidal Tracts.
- Adult, Aged, Female, Functional Laterality, Humans, Male, Middle Aged.
Abstract
Motor imagery (MI) is the mental rehearsal of a motor act without overt movement. Using transcranial magnetic stimulation (TMS), we tested the effect of MI on corticospinal excitability in patients with writer's cramp. In 10 patients with writer's cramp and 10 healthy controls, we applied focal TMS over each primary motor area and recorded motor evoked potentials (MEPs) from contralateral hand and arm muscles while participants imagined a tonic abduction of the index finger contralateral to the stimulated hemisphere. In healthy controls and patients, the MEP amplitude in the relaxed first dorsal interosseus muscle (FDI) showed a muscle-specific increase during MI; however, the increase was less pronounced in patients than in healthy controls. In addition, in patients but not in controls, the MEP amplitude also increased in hand and forearm muscles not involved in the imagined movement. This abnormal spread of facilitation was observed in the affected and unaffected upper limb. MI of simple hand movements is less efficient and less focussed in patients with writer's cramp than it is in normal subjects.
DOI: 10.1002/mds.20626
PubMed: 16078218
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V" first="Vincenzo" last="Rizzo">Vincenzo Rizzo</name></author><author><name sortKey="Morgante, Francesca" sort="Morgante, Francesca" uniqKey="Morgante F" first="Francesca" last="Morgante">Francesca Morgante</name></author><author><name sortKey="Sant Angelo, Antonino" sort="Sant Angelo, Antonino" uniqKey="Sant Angelo A" first="Antonino" last="Sant'Angelo">Antonino Sant'Angelo</name></author><author><name sortKey="Crupi, Domenica" sort="Crupi, Domenica" uniqKey="Crupi D" first="Domenica" last="Crupi">Domenica Crupi</name></author><author><name sortKey="Romano, Marcello" sort="Romano, Marcello" uniqKey="Romano M" first="Marcello" last="Romano">Marcello Romano</name></author><author><name sortKey="Messina, Corrado" sort="Messina, Corrado" uniqKey="Messina C" first="Corrado" last="Messina">Corrado Messina</name></author><author><name sortKey="Berardelli, Alfredo" sort="Berardelli, Alfredo" uniqKey="Berardelli A" first="Alfredo" last="Berardelli">Alfredo Berardelli</name></author><author><name sortKey="Girlanda, Paolo" sort="Girlanda, Paolo" uniqKey="Girlanda P" first="Paolo" last="Girlanda">Paolo Girlanda</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2005">2005</date><idno type="doi">10.1002/mds.20626</idno><idno type="RBID">pubmed:16078218</idno><idno type="pmid">16078218</idno><idno type="wicri:Area/PubMed/Corpus">002F47</idno><idno type="wicri:Area/PubMed/Curation">002F47</idno><idno type="wicri:Area/PubMed/Checkpoint">003177</idno><idno type="wicri:Area/Ncbi/Merge">001365</idno><idno type="wicri:Area/Ncbi/Curation">001365</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Corticospinal excitability during motor imagery of a simple tonic finger movement in patients with writer's cramp.</title><author><name sortKey="Quartarone, Angelo" sort="Quartarone, Angelo" uniqKey="Quartarone A" first="Angelo" last="Quartarone">Angelo Quartarone</name><affiliation wicri:level="1"><nlm:affiliation>Department of Neurosciences, Psychiatric and Anaesthesiological Sciences, University of Messina, Italy. angelo.quartarone@unime.it</nlm:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>Department of Neurosciences, Psychiatric and Anaesthesiological Sciences, University of Messina</wicri:regionArea><wicri:noRegion>University of Messina</wicri:noRegion></affiliation></author><author><name sortKey="Bagnato, Sergio" sort="Bagnato, Sergio" uniqKey="Bagnato S" first="Sergio" last="Bagnato">Sergio Bagnato</name></author><author><name sortKey="Rizzo, Vincenzo" sort="Rizzo, Vincenzo" uniqKey="Rizzo V" first="Vincenzo" last="Rizzo">Vincenzo Rizzo</name></author><author><name sortKey="Morgante, Francesca" sort="Morgante, Francesca" uniqKey="Morgante F" first="Francesca" last="Morgante">Francesca Morgante</name></author><author><name sortKey="Sant Angelo, Antonino" sort="Sant Angelo, Antonino" uniqKey="Sant Angelo A" first="Antonino" last="Sant'Angelo">Antonino Sant'Angelo</name></author><author><name sortKey="Crupi, Domenica" sort="Crupi, Domenica" uniqKey="Crupi D" first="Domenica" last="Crupi">Domenica Crupi</name></author><author><name sortKey="Romano, Marcello" sort="Romano, Marcello" uniqKey="Romano M" first="Marcello" last="Romano">Marcello Romano</name></author><author><name sortKey="Messina, Corrado" sort="Messina, Corrado" uniqKey="Messina C" first="Corrado" last="Messina">Corrado Messina</name></author><author><name sortKey="Berardelli, Alfredo" sort="Berardelli, Alfredo" uniqKey="Berardelli A" first="Alfredo" last="Berardelli">Alfredo Berardelli</name></author><author><name sortKey="Girlanda, Paolo" sort="Girlanda, Paolo" uniqKey="Girlanda P" first="Paolo" last="Girlanda">Paolo Girlanda</name></author></analytic><series><title level="j">Movement disorders : official journal of the Movement Disorder Society</title><idno type="ISSN">0885-3185</idno><imprint><date when="2005" type="published">2005</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Aged</term><term>Dystonic Disorders (physiopathology)</term><term>Electromyography (methods)</term><term>Evoked Potentials, Motor (physiology)</term><term>Female</term><term>Fingers (physiopathology)</term><term>Functional Laterality</term><term>Humans</term><term>Imagination (physiology)</term><term>Male</term><term>Middle Aged</term><term>Motor Cortex (physiopathology)</term><term>Movement (physiology)</term><term>Pyramidal Tracts (physiopathology)</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Electromyography</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Evoked Potentials, Motor</term><term>Imagination</term><term>Movement</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Dystonic Disorders</term><term>Fingers</term><term>Motor Cortex</term><term>Pyramidal Tracts</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Aged</term><term>Female</term><term>Functional Laterality</term><term>Humans</term><term>Male</term><term>Middle Aged</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Motor imagery (MI) is the mental rehearsal of a motor act without overt movement. Using transcranial magnetic stimulation (TMS), we tested the effect of MI on corticospinal excitability in patients with writer's cramp. In 10 patients with writer's cramp and 10 healthy controls, we applied focal TMS over each primary motor area and recorded motor evoked potentials (MEPs) from contralateral hand and arm muscles while participants imagined a tonic abduction of the index finger contralateral to the stimulated hemisphere. In healthy controls and patients, the MEP amplitude in the relaxed first dorsal interosseus muscle (FDI) showed a muscle-specific increase during MI; however, the increase was less pronounced in patients than in healthy controls. In addition, in patients but not in controls, the MEP amplitude also increased in hand and forearm muscles not involved in the imagined movement. This abnormal spread of facilitation was observed in the affected and unaffected upper limb. MI of simple hand movements is less efficient and less focussed in patients with writer's cramp than it is in normal subjects.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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