The effect of cutaneous input on intracortical inhibition in focal task‐specific dystonia
Identifieur interne : 002B38 ( Main/Exploration ); précédent : 002B37; suivant : 002B39The effect of cutaneous input on intracortical inhibition in focal task‐specific dystonia
Auteurs : Michelle N. Mcdonnell [Australie] ; Philip D. Thompson [Australie] ; Michael C. Ridding [Australie]Source :
- Movement Disorders [ 0885-3185 ] ; 2007-07-15.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
- Adult, Analysis of Variance, Dystonia, Dystonic Disorders (pathology), Dystonic Disorders (physiopathology), Electric Stimulation (methods), Electromyography (methods), Evoked Potentials, Motor (physiology), Evoked Potentials, Motor (radiation effects), Female, Humans, Male, Middle Aged, Muscle, Skeletal (physiopathology), Muscle, Skeletal (radiation effects), Nervous system diseases, Neural Inhibition (physiology), Neural Inhibition (radiation effects), Skin, Skin (innervation), Time Factors, Transcranial Magnetic Stimulation (methods), Transcranial magnetic stimulation, cutaneous input, focal dystonia, intracortical inhibition., transcranial magnetic stimulation.
- MESH :
- innervation : Skin.
- methods : Electric Stimulation, Electromyography, Transcranial Magnetic Stimulation.
- pathology : Dystonic Disorders.
- physiology : Evoked Potentials, Motor, Neural Inhibition.
- physiopathology : Dystonic Disorders, Muscle, Skeletal.
- radiation effects : Evoked Potentials, Motor, Muscle, Skeletal, Neural Inhibition.
- Adult, Analysis of Variance, Female, Humans, Male, Middle Aged, Time Factors.
Abstract
In normal subjects short interval intracortical inhibition (SICI) is topographically modulated by cutaneous input, which may be important for focusing muscle activation during tasks. In patients with writer's cramp, a task‐specific focal dystonia characterized by inappropriate and excessive muscle activation of the upper limb during certain motor tasks, intracortical inhibition is reduced at rest and lacks the normal topographically‐specific modulation during motor tasks. In the present study we investigated whether cutaneous input modulated SICI in a group of patients with writer's cramp and a control group of subjects. Electromyographic recordings were made from the right first dorsal interosseous (FDI), abductor pollicis brevis (APB), and abductor digiti minimi (ADM) muscles. Brief electrical stimuli were applied to either digit II or digit V with ring electrodes. SICI was investigated using a paired transcranial magnetic stimulation paradigm employing interstimulus intervals of 1–15 ms. Cutaneous input from both digit II and digit V modulated motor evoked potentials and SICI in a topographically‐specific manner in control subjects. In contrast, cutaneous input failed to modulate motor evoked potentials or SICI in the focal hand dystonia patients. These results provide further evidence of abnormal sensorimotor integration in focal hand dystonia. © 2007 Movement Disorder Society
Url:
DOI: 10.1002/mds.21508
Affiliations:
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Le document en format XML
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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="2007-07-15">2007-07-15</date><biblScope unit="vol">22</biblScope><biblScope unit="issue">9</biblScope><biblScope unit="page" from="1286">1286</biblScope><biblScope unit="page" to="1292">1292</biblScope></imprint><idno type="ISSN">0885-3185</idno></series><idno type="istex">90838A0F76FAED3E708FCA3D4C7CA6715A52788C</idno><idno type="DOI">10.1002/mds.21508</idno><idno type="ArticleID">MDS21508</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0885-3185</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Analysis of Variance</term><term>Dystonia</term><term>Dystonic Disorders (pathology)</term><term>Dystonic Disorders (physiopathology)</term><term>Electric Stimulation (methods)</term><term>Electromyography (methods)</term><term>Evoked Potentials, Motor (physiology)</term><term>Evoked Potentials, Motor (radiation effects)</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Muscle, Skeletal (physiopathology)</term><term>Muscle, Skeletal (radiation effects)</term><term>Nervous system diseases</term><term>Neural Inhibition (physiology)</term><term>Neural Inhibition (radiation effects)</term><term>Skin</term><term>Skin (innervation)</term><term>Time Factors</term><term>Transcranial Magnetic Stimulation (methods)</term><term>Transcranial magnetic stimulation</term><term>cutaneous input</term><term>focal dystonia</term><term>intracortical inhibition.</term><term>transcranial magnetic stimulation</term></keywords><keywords scheme="MESH" qualifier="innervation" xml:lang="en"><term>Skin</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Electric Stimulation</term><term>Electromyography</term><term>Transcranial Magnetic Stimulation</term></keywords><keywords scheme="MESH" qualifier="pathology" xml:lang="en"><term>Dystonic Disorders</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Evoked Potentials, Motor</term><term>Neural Inhibition</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Dystonic Disorders</term><term>Muscle, Skeletal</term></keywords><keywords scheme="MESH" qualifier="radiation effects" xml:lang="en"><term>Evoked Potentials, Motor</term><term>Muscle, Skeletal</term><term>Neural Inhibition</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Analysis of Variance</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Time Factors</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Dystonie</term><term>Peau</term><term>Stimulation magnétique transcrânienne</term><term>Système nerveux pathologie</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In normal subjects short interval intracortical inhibition (SICI) is topographically modulated by cutaneous input, which may be important for focusing muscle activation during tasks. In patients with writer's cramp, a task‐specific focal dystonia characterized by inappropriate and excessive muscle activation of the upper limb during certain motor tasks, intracortical inhibition is reduced at rest and lacks the normal topographically‐specific modulation during motor tasks. In the present study we investigated whether cutaneous input modulated SICI in a group of patients with writer's cramp and a control group of subjects. Electromyographic recordings were made from the right first dorsal interosseous (FDI), abductor pollicis brevis (APB), and abductor digiti minimi (ADM) muscles. Brief electrical stimuli were applied to either digit II or digit V with ring electrodes. SICI was investigated using a paired transcranial magnetic stimulation paradigm employing interstimulus intervals of 1–15 ms. Cutaneous input from both digit II and digit V modulated motor evoked potentials and SICI in a topographically‐specific manner in control subjects. In contrast, cutaneous input failed to modulate motor evoked potentials or SICI in the focal hand dystonia patients. These results provide further evidence of abnormal sensorimotor integration in focal hand dystonia. © 2007 Movement Disorder Society</div></front></TEI><affiliations><list><country><li>Australie</li></country></list><tree><country name="Australie"><noRegion><name sortKey="Mcdonnell, Michelle N" sort="Mcdonnell, Michelle N" uniqKey="Mcdonnell M" first="Michelle N." last="Mcdonnell">Michelle N. Mcdonnell</name></noRegion><name sortKey="Ridding, Michael C" sort="Ridding, Michael C" uniqKey="Ridding M" first="Michael C." last="Ridding">Michael C. Ridding</name><name sortKey="Thompson, Philip D" sort="Thompson, Philip D" uniqKey="Thompson P" first="Philip D." last="Thompson">Philip D. Thompson</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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