期刊
NEUROSCIENCE LETTERS
卷 284, 期 3, 页码 147-150出版社
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/S0304-3940(00)00990-3
关键词
repetitive transcranial magnetic stimulation; Parkinson's disease; silent period; motor evoked potential
In ten patients with Parkinson's disease (PD) and ten age-matched healthy controls, we applied 15 30-s trains of subthreshold 5-Hz repetitive transcranial magnetic stimulation (rTMS) over the primary motor hand area. Ten minutes after rTMS, PD patients showed a significant prolongation of the transcranially evoked silent period (SP) in the contralateral first dorsal interosseus muscle, whereas the SP remained unchanged in healthy subjects. Since the duration of the transcranially evoked SP is a well-established measure of intracortical inhibition, this finding demonstrates that rTMS is capable of inducing a short-term increase in intracortical inhibition in PD. The lack of a prolongation of the SP in healthy controls suggests that PD patients may be particularly susceptible to modulatory effects of rTMS on motorcortical inhibition. (C) 2000 Elsevier Science Ireland Ltd. All rights reserved.
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