THE EFFECT OF HYPERVENTILATION ON MOTOR CORTICAL INHIBITION IN HUMANS - A STUDY OF THE ELECTROMYOGRAPHIC SILENT PERIOD EVOKED BY TRANSCRANIAL BRAIN-STIMULATION

被引：34

作者：

PRIORI, A

BERARDELLI, A

MERCURI, B

INGHILLERI, M

MANFREDI, M

机构：

[1] IST MEDITERRANEO NEUROSCI,POZZILLI,ITALY

[2] UNIV ROMA LA SAPIENZA,DIPARTIMENTO SCI NEUROL,I-00185 ROME,ITALY

来源：

ELECTROMYOGRAPHY AND MOTOR CONTROL-ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY | 1995年 / 97卷 / 01期

关键词：

HYPERVENTILATION; SILENT PERIOD; CORTICAL INHIBITION; TRANSCRANIAL BRAIN STIMULATION; PCO2; RESPIRATORY ALKALOSIS;

D O I：

10.1016/0924-980X(94)00224-U

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

We studied the effects of hyperventilation under control of the end-tidal PCO2, on the electromyographic silent period evoked by transcranial magnetic brain stimulation and by peripheral nerve stimulation. We also studied the effects of hyperventilation on the threshold, latency and amplitude of motor potentials. Hyperventilation significantly reduced the duration of the cortical silent period, but did not affect the length of the peripheral silent period. Neither did it alter the latency, amplitude or threshold of the motor potentials. These findings suggest that hyperventilation selectively depresses motor cortical inhibition in humans.

引用

页码：69 / 72

页数：4

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