MovDisordV3, Main, Merge, bibRecord, 004967

Temporal discrimination of two passive movements in writer's cramp

Identifieur interne : 004967 ( Main/Merge ); précédent : 004966; suivant : 004968

Temporal discrimination of two passive movements in writer's cramp

Auteurs : Michele Tinazzi [Italie] ; Mirta Fiorio [Italie] ; Clementina Stanzani [Italie] ; Giuseppe Moretto [Italie] ; Nicola Smania [Italie] ; Antonio Fiaschi [Italie] ; Kailash P. Bhatia [Royaume-Uni] ; John C. Rothwell [Royaume-Uni]

Source :

Movement disorders [ 0885-3185 ] ; 2006.

RBID : Pascal:06-0435081

Descripteurs français

Pascal (Inist)
- Système nerveux pathologie, Crampe écrivain, Dystonie, Discrimination, Proprioception, Kinesthésie.

English descriptors

KwdEn :
- Discrimination, Dystonia, Kinesthesia, Nervous system diseases, Proprioception, Writer cramp.

Abstract

Although movement abnormalities are predominant symptoms of dystonia, patients also have alterations in temporal as well as spatial discrimination of cutaneous inputs. Here, we use a recently described method to test whether deficits also exist in temporal discrimination of proprioceptive inputs. Percutaneous electrical stimulation of the motor point of the first dorsal interosseous (FDI) muscle, and of the flexor carpii radialis (FCR) muscle separately, was used to produce a non-painful contraction of the muscles that caused index finger abduction and wrist flexion, respectively. In 10 patients with writer's cramp and in 10 healthy subjects, pairs of stimuli separated by different time intervals were given and subjects were asked to report whether they perceived a single or a double index finger abduction movement or wrist flexion. The threshold value was the shortest interval at which the subjects reported two separated movements (temporal discrimination motor threshold [TDMT]). In both writer's cramp patients and controls, TDMTs were higher for FCR than for FDI. But in contrast to the reduced temporal discrimination reported for cutaneous sensation, there was no significant difference in either muscle between TDMT in patients and normal subjects. We conclude that temporal processing of muscle and cutaneous afferents is differentially affected in focal hand dystonia.

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Pascal:06-0435081

Le document en format XML

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<author><name sortKey="Fiaschi, Antonio" sort="Fiaschi, Antonio" uniqKey="Fiaschi A" first="Antonio" last="Fiaschi">Antonio Fiaschi</name>
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<term>Writer cramp</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Système nerveux pathologie</term>
<term>Crampe écrivain</term>
<term>Dystonie</term>
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<front><div type="abstract" xml:lang="en">Although movement abnormalities are predominant symptoms of dystonia, patients also have alterations in temporal as well as spatial discrimination of cutaneous inputs. Here, we use a recently described method to test whether deficits also exist in temporal discrimination of proprioceptive inputs. Percutaneous electrical stimulation of the motor point of the first dorsal interosseous (FDI) muscle, and of the flexor carpii radialis (FCR) muscle separately, was used to produce a non-painful contraction of the muscles that caused index finger abduction and wrist flexion, respectively. In 10 patients with writer's cramp and in 10 healthy subjects, pairs of stimuli separated by different time intervals were given and subjects were asked to report whether they perceived a single or a double index finger abduction movement or wrist flexion. The threshold value was the shortest interval at which the subjects reported two separated movements (temporal discrimination motor threshold [TDMT]). In both writer's cramp patients and controls, TDMTs were higher for FCR than for FDI. But in contrast to the reduced temporal discrimination reported for cutaneous sensation, there was no significant difference in either muscle between TDMT in patients and normal subjects. We conclude that temporal processing of muscle and cutaneous afferents is differentially affected in focal hand dystonia.</div>
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	Movement Disorders (revue)
	Attention, ce site est en cours de développement ! Attention, site généré par des moyens informatiques à partir de corpus bruts. Les informations ne sont donc pas validées.

Movement Disorders (revue)

Temporal discrimination of two passive movements in writer's cramp

Temporal discrimination of two passive movements in writer's cramp

Source :

Descripteurs français

English descriptors

Abstract

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

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri