MovDisordV3, Main, Exploration, bibRecord, 005F14

Voluntary stimulus‐sensitive jerks and jumps mimicking myoclonus or pathological startle syndromes

Identifieur interne : 005F14 ( Main/Exploration ); précédent : 005F13; suivant : 005F15

Voluntary stimulus‐sensitive jerks and jumps mimicking myoclonus or pathological startle syndromes

Auteurs : P. D. Thompson [Royaume-Uni] ; J. G. Colebatch [Royaume-Uni] ; P. Brown [Royaume-Uni] ; J. C. Rothwell [Royaume-Uni] ; B. L. Day [Royaume-Uni] ; J. A. Obeso [Royaume-Uni] ; Marsden [Royaume-Uni]

Source :

Movement Disorders [ 0885-3185 ] ; 1992.

RBID : ISTEX:C4FF3366F978DEA8DCE475ABB20BA045FE1DE202

Descripteurs français

Pascal (Inist)
- Diagnostic différentiel, Electrodiagnostic, Etude cas, Exploration, Homme, Myoclonie, Sursaut.
Wicri :
- topic : Homme.

English descriptors

KwdEn :
- Adult, Burst, Case study, Differential diagnostic, Electrodiagnosis, Exploration, Female, Human, Humans, Male, Malingering (diagnosis), Malingering (physiopathology), Malingering (psychology), Muscles (physiopathology), Myoclonus, Myoclonus (diagnosis), Myoclonus (physiopathology), Myoclonus (psychology), Neurologic Examination, Reaction Time (physiology), Reference Values, Reflex (physiology), Reflex, Startle (physiology), Somatoform Disorders (diagnosis), Somatoform Disorders (physiopathology), Somatoform Disorders (psychology), Startle syndromes, Voluntary muscle jerks.
MESH :
- diagnosis : Malingering, Myoclonus, Somatoform Disorders.
- physiology : Reaction Time, Reflex, Reflex, Startle.
- physiopathology : Malingering, Muscles, Myoclonus, Somatoform Disorders.
- psychology : Malingering, Myoclonus, Somatoform Disorders.
- Adult, Female, Humans, Male, Neurologic Examination, Reference Values.

Abstract

Five patients who presented with stimulus‐induced jerking as part of an apparent myoclonic or pathological startle syndrome are reported. Neurophysiological observations in these patients suggested the jerks were voluntary in origin. These included (a) variable latencies to the onset of stimulus induced jerks, (b) latencies were greater than that seen in reflex myoclonus of cortical or brainstem origin, and were (c) longer than the fastest voluntary reaction times of normal subjects, (d) variable patterns of muscle recruitment within each jerk and, (e) significant habituation with repeated stimulation. It is argued that these features are consistent with a voluntary origin for the jerks and enable them to be distinguished from the stereotyped electrophysiological characteristics of myoclonus of cortical and brainstem origin. Electrophysiological recordings may help identify patients with this form of psychogenic movement disorder.

Url:

https://api.istex.fr/document/C4FF3366F978DEA8DCE475ABB20BA045FE1DE202/fulltext/pdf

DOI: 10.1002/mds.870070312

Affiliations:

Le document en format XML

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<term>Exploration</term>
<term>Female</term>
<term>Human</term>
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<term>Male</term>
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<term>Malingering (physiopathology)</term>
<term>Malingering (psychology)</term>
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<front><div type="abstract" xml:lang="en">Five patients who presented with stimulus‐induced jerking as part of an apparent myoclonic or pathological startle syndrome are reported. Neurophysiological observations in these patients suggested the jerks were voluntary in origin. These included (a) variable latencies to the onset of stimulus induced jerks, (b) latencies were greater than that seen in reflex myoclonus of cortical or brainstem origin, and were (c) longer than the fastest voluntary reaction times of normal subjects, (d) variable patterns of muscle recruitment within each jerk and, (e) significant habituation with repeated stimulation. It is argued that these features are consistent with a voluntary origin for the jerks and enable them to be distinguished from the stereotyped electrophysiological characteristics of myoclonus of cortical and brainstem origin. Electrophysiological recordings may help identify patients with this form of psychogenic movement disorder.</div>
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Movement Disorders (revue)

Voluntary stimulus‐sensitive jerks and jumps mimicking myoclonus or pathological startle syndromes

Voluntary stimulus‐sensitive jerks and jumps mimicking myoclonus or pathological startle syndromes

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

	Movement Disorders (revue)
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