OSCILLATORY BRAIN ACTIVITY DURING A MOTOR TASK

被引：80

作者：

KRISTEVAFEIGE, R ^{[1
]}

FEIGE, B ^{[1
]}

MAKEIG, S ^{[1
]}

ROSS, B ^{[1
]}

ELBERT, T ^{[1
]}

机构：

[1] USN,NAVAL HLTH RES CTR,SAN DIEGO,CA 92186

来源：

NEUROREPORT | 1993年 / 4卷 / 12期

关键词：

MAGNETOENCEPHALOGRAPHY (MEG); OSCILLATORY ACTIVITY; SENSORIMOTOR INTEGRATION; GAMMA BAND; MOTOR CORTEX; RHYTHMIC; EEG;

D O I：

10.1097/00001756-199309150-00001

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

CHANGES in spectral power in neuromagnetic fields associated with a manual task requiring a high level of sensorimotor integration (SMI) were investigated by analysing spontaneous, non-invasively recorded activity during motor preparation (WAIT), task performance (SMI), and control (REST) conditions in four healthy, right-handed human subjects. Neuromagnetic fields were recorded over the left sensorimotor cortex using a 37-channel instrument. In all subjects, a prominent narrow-band motor preparation rhythm centred near 19 Hz was consistently observed during the WAIT state. During SMI, mean relative increases in 26-30 Hz activity appeared in two of the subjects, paralleling gamma band enhancement recently observed during SMI in monkeys.

引用

页码：1291 / 1294

页数：4

共 11 条

[1]

BOUYER JJ, 1980, RHYTHMIC EEG ACTIVIT, P63

[2] COHERENT OSCILLATIONS - A MECHANISM OF FEATURE LINKING IN THE VISUAL-CORTEX - MULTIPLE ELECTRODE AND CORRELATION ANALYSES IN THE CAT [J].