MovDisordV3, Main, Exploration, bibRecord, 004F26

Physiology and Anatomy of Possible Oscillators in the Central Nervous System

Identifieur interne : 004F26 ( Main/Exploration ); précédent : 004F25; suivant : 004F27

Physiology and Anatomy of Possible Oscillators in the Central Nervous System

Auteurs : John C. Rothwell [Royaume-Uni]

Source :

Movement Disorders [ 0885-3185 ] ; 1998.

RBID : ISTEX:F775DDC96C9DFB8D363E284C4CF233598E63523B

Descripteurs français

Pascal (Inist)
- Anatomie, Homme, Olive inférieure, Oscillateur, Pathogénie, Réflexe étirement, Réseau nerveux, Thalamus, Tremblement, Voie motrice.
Wicri :
- topic : Anatomie, Homme.

English descriptors

KwdEn :
- Anatomy, Cerebral Cortex (physiology), Electromyography (methods), Human, Humans, Inferior olivary complex, Motor pathway, Nervous network, Oscillator, Pathogenesis, Reflex, Stretch (physiology), Stretch reflex, Thalamic Nuclei (physiology), Thalamus, Tremor, Tremor (etiology).
MESH :
- etiology : Tremor.
- methods : Electromyography.
- physiology : Cerebral Cortex, Reflex, Stretch, Thalamic Nuclei.
- Humans.

Abstract

Pathologic tremors occur when the normal, continuous pattern of muscle activation is replaced by relatively synchronous bursting. This article discusses the possible roles of stretch reflex and central oscillators in producing tremor. The gain and conduction delay in some reflex arcs places the stretch reflex close to oscillation in some muscles during normal operation. Within the brain, cells in the thalamic relay nuclei and inferior olive contain a set of ionic conductancies in the cell membrane that can interact to produce oscillations in membrane potential. This tendency is exaggerated by hyperpolarizing or depolarizing the cell away from the normal resting potential. The activity of neighboring cells can be coupled (by electrotonic gap junctions in the olive and by recurrent axonal projections from the reticular nucleus in the thalamus), thus a large population of cells can oscillate together and exert a powerful rhythmic influence on motor output

Url:

https://api.istex.fr/document/F775DDC96C9DFB8D363E284C4CF233598E63523B/fulltext/pdf

DOI: 10.1002/mds.870131304

Affiliations:

Le document en format XML

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<term>Inferior olivary complex</term>
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<front><div type="abstract" xml:lang="en">Pathologic tremors occur when the normal, continuous pattern of muscle activation is replaced by relatively synchronous bursting. This article discusses the possible roles of stretch reflex and central oscillators in producing tremor. The gain and conduction delay in some reflex arcs places the stretch reflex close to oscillation in some muscles during normal operation. Within the brain, cells in the thalamic relay nuclei and inferior olive contain a set of ionic conductancies in the cell membrane that can interact to produce oscillations in membrane potential. This tendency is exaggerated by hyperpolarizing or depolarizing the cell away from the normal resting potential. The activity of neighboring cells can be coupled (by electrotonic gap junctions in the olive and by recurrent axonal projections from the reticular nucleus in the thalamus), thus a large population of cells can oscillate together and exert a powerful rhythmic influence on motor output</div>
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Movement Disorders (revue)

Physiology and Anatomy of Possible Oscillators in the Central Nervous System

Physiology and Anatomy of Possible Oscillators in the Central Nervous System

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)
	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.