EFFECT OF AGING ON THE SPATIOTEMPORAL PATTERN OF EVENT-RELATED DESYNCHRONIZATION DURING A VOLUNTARY MOVEMENT

被引：113

作者：

DERAMBURE, P

DEFEBVRE, L

DUJARDIN, K

BOURRIEZ, JL

JACQUESSON, JM

DESTEE, A

GUIEU, JD

机构：

[1] CHRU,HOP B,DEPT PHYSIOL & CLIN NEUROPHYSIOL,F-59037 LILLE,FRANCE

[2] CHRU,HOP B,DEPT NEUROL A,F-59037 LILLE,FRANCE

来源：

ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY | 1993年 / 89卷 / 03期

关键词：

EVENT-RELATED DESYNCHRONIZATION; EEG MAPPING; VOLUNTARY MOVEMENT; CEREBRAL AGING; CORTICAL ACTIVATION;

D O I：

10.1016/0168-5597(93)90133-A

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Event-related desynchronization (ERD) of alpha components was studied in young and elderly subjects during planning of voluntary movement. ERD was quantified from 11 source derivations covering regions of the scalp corresponding to the supplementary motor area, the left and right primary sensorimotor areas, the vertex, and the medial posterior parietal cortex. Spatio-temporal display of ERD showed a very different pattern in elderly subjects, with mainly a spatial diffusion of ERD over the parietal and frontal regions. On the contrary, ERD in young subjects was limited to the central regions. ERD was also more lasting in elderly subjects. Changes of the ERD pattern in elderly subjects could indicate a change of cortical activation during voluntary movement. The data also confirm that ERD study is a useful electrophysiological exploration to observe the changes of cortical activation during cerebral aging.

引用

页码：197 / 203

页数：7

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