C-4-2 手指随意運動中断動作に関する脳機能に対する経頭蓋磁気刺激の干渉(生体計測(2))

抄録

In this study, brain function dynamics related to an interruption of voluntary finger movement was investigated with transcranial magnetic stimulation (TMS). A subject stopped voluntarily a point-to-point reaching finger movement. The subject had watched the clock which revolves once every 4 seconds and always started the finger movement when the hand of the clock passed the 12 o'clock position. The stop signal with LED was indicated randomly at the time the clock-hand passed the 12 o'clock position. In the stop task, TMS was conducted by a round coil before and after the time of the stop signal. The result showed that voluntary interruption of point-to-point reaching finger movement was inhibited by the TMS conducted at 0 ms and 50 ms after the stop signal.