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Titolo:
Motor programming is more affected in progressive supranuclear palsy than in Parkinson's disease: A spatiotemporal study of event-related desynchronization
Autore:
Defebvre, LJP; Derambure, P; Bourriez, JL; Cassim, F; Guieu, JD; Destee, A;
Indirizzi:
Dept Neurol, Lille, France Dept Neurol Lille FranceDept Neurol, Lille, France Movement Disorders Unit, Lille, France Movement Disorders Unit Lille France ment Disorders Unit, Lille, France Dept Clin Neurophysiol, Lille, France Dept Clin Neurophysiol Lille France pt Clin Neurophysiol, Lille, France
Titolo Testata:
MOVEMENT DISORDERS
fascicolo: 4, volume: 14, anno: 1999,
pagine: 634 - 641
SICI:
0885-3185(199907)14:4<634:MPIMAI>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
CONTINGENT NEGATIVE-VARIATION; RICHARDSON-OLSZEWSKI-SYNDROME; VOLUNTARY MOVEMENT; SUBCORTICAL DEMENTIA; POSITRON TOMOGRAPHY; EMISSION TOMOGRAPHY; BASAL GANGLIA; BLOOD-FLOW; AREA; HYPOMETABOLISM;
Keywords:
EEG; event-related desynchronization; progressive supranuclear palsy; Parkinson's disease; voluntary movement;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Defebvre, LJP Ctr Hosp Reg & Univ Lille, Hop Salengro, Serv Neurol & Pathol Mouvement, Pl Verdun, F-59037 Lille, France Ctr Hosp Reg & Univ Lille Pl Verdun Lille France F-59037 ce
Citazione:
L.J.P. Defebvre et al., "Motor programming is more affected in progressive supranuclear palsy than in Parkinson's disease: A spatiotemporal study of event-related desynchronization", MOVEMENT D, 14(4), 1999, pp. 634-641

Abstract

To determine the benefit of motor programming analysis for distinguishing patients with parkinsonism, we compared the spatiotemporal pattern of event-related desynchronization (ERD) preceding a self-paced voluntary wrist flexion between two,groups of 10 patients with progressive supranuclear palsy (PSP) and Parkinson's disease (PD) and 10 control subjects. ERD of the mu rhythm was computed from 11 source derivations covering the medial frontocentral, central, and parietocentral areas during two successive left and right experimental conditions (80 self-paced wrist flexions). ERD began in the control group 1750 ms before movement onset over the contralateral central area and then appeared bilaterally on movement execution. In both patient groups, spatiotemporal distribution differed from that in the control group. In the PSP group, ERD had a shorter latency over the contralateral primarysensorimotor area compared with the PD group (PSP: 375 ms before movement onset for both conditions; PD: right flexion 1125 ms before movement onset,left flexion 1000 ms). ERD was observed over the parietocentral area in both groups but also with a clear reduction of latency before movement onset in the PSP group. In both groups, a bilateral central pattern appeared 250 ms before movement execution. In conclusion, our study indicates that ERD analysis is a useful method for observing the changes in cortical activationand for measuring motor programming impairment in parkinsonism, which was more affected in PSP than in PD.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/06/20 alle ore 09:37:40