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Local field potentials and oscillatory activity of the internal globus pallidus in myoclonus-dystonia

Identifieur interne : 004202 ( Main/Merge ); précédent : 004201; suivant : 004203

Local field potentials and oscillatory activity of the internal globus pallidus in myoclonus-dystonia

Auteurs : Elisabeth M. J. Foncke [Pays-Bas] ; Lo J. Bour [Pays-Bas] ; Johannes D. Speelman [Pays-Bas] ; Johannes H. T. M. Koelman [Pays-Bas] ; Marina A. J. Tijssen [Pays-Bas]

Source :

Movement disorders [ 0885-3185 ] ; 2007.

RBID : Pascal:07-0181696

Descripteurs français

Pascal (Inist)
- Système nerveux pathologie, Myoclonie, Dystonie, Potentiel champ, Potentiel oscillant, Cohérence.

English descriptors

KwdEn :
- Coherence, Dystonia, Field potential, Myoclonus, Nervous system diseases, Oscillatory potential.

Abstract

The pathophysiology of myoclonus-dystonia (M-D), an autosomal dominantly inherited movement disorder characterized by myoclonic jerks and dystonic contractions, is largely unknown. In the present study, local field potential (LFP) activities in the globus pallidus internus (GPi) from two genetically proven M-D patients are investigated. Coherence analysis between GPi LFP activity and electromyographic muscle activity (EMG) and synchronization of GPi neuronal activity using event-related spectral perturbation (ERSP) in a go-no-go paradigm were studied. Significant increased coherence in the 3 to 15 Hz frequency band was detected between GPi LFP activity and several muscles, with the LFP leading the muscles. The ERSP analysis revealed synchronization in the 3 to 15 Hz frequency band within the GPi before the imperative cue of the go-no-go task and desynchronization in the same band after the cue. The LFP recordings of the GPi in M-D show that the low-frequency band previously described in dystonia is also involved in the dystonia plus syndrome M-D. The 3 to 15 Hz synchronization in the go-no-go paradigm has not been described previously and may point to the existence of (myoclonus-)dystonia specific oscillatory activity in the GPi.

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Pascal:07-0181696

Le document en format XML

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<front><div type="abstract" xml:lang="en">The pathophysiology of myoclonus-dystonia (M-D), an autosomal dominantly inherited movement disorder characterized by myoclonic jerks and dystonic contractions, is largely unknown. In the present study, local field potential (LFP) activities in the globus pallidus internus (GPi) from two genetically proven M-D patients are investigated. Coherence analysis between GPi LFP activity and electromyographic muscle activity (EMG) and synchronization of GPi neuronal activity using event-related spectral perturbation (ERSP) in a go-no-go paradigm were studied. Significant increased coherence in the 3 to 15 Hz frequency band was detected between GPi LFP activity and several muscles, with the LFP leading the muscles. The ERSP analysis revealed synchronization in the 3 to 15 Hz frequency band within the GPi before the imperative cue of the go-no-go task and desynchronization in the same band after the cue. The LFP recordings of the GPi in M-D show that the low-frequency band previously described in dystonia is also involved in the dystonia plus syndrome M-D. The 3 to 15 Hz synchronization in the go-no-go paradigm has not been described previously and may point to the existence of (myoclonus-)dystonia specific oscillatory activity in the GPi.</div>
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	Movement Disorders (revue)
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Movement Disorders (revue)

Local field potentials and oscillatory activity of the internal globus pallidus in myoclonus-dystonia

Local field potentials and oscillatory activity of the internal globus pallidus in myoclonus-dystonia

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)

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