비침습뇌자극 형태에 따른 숙련도별 내적 타이밍 훈련이 외적 타이밍 수행력에 미치는 영향

Abstract

The purpose of this study is to investigate and compare motor skill levels between expert and non-experts according to the effect of internal timing training with non-invasive brain stimulation(tDCS) on the external timing task. The 28 participants(elite 14, novice 14) were divided into 4 groups of seven persons each which included; expert A(anode), expert B(sham), non-expert C(anode), non-expert D(sham) . Group A and C received 15 minutes o f tDCS over the cerebellum while participants t rained internal timing task. Group B and D received 5 seconds of tDCS on the same area but the tDCS was then switched off without the participants knowledge. The experiment took place over a period of three days. On the first day of the experiment, all participants tested their external timing task and 2 weeks later, they were tested on their internal timing training with the ctDCS applied for two sessions during that day. At the end of the second day, participants tested their external timing task again to compare the reaction time to results before and after the treatment. The results of this study were drawn as follows, the type of tDCS between expert versus non-expert had different effectiveness according to the level of motor skills, but not the type of tDCS applied. Depending on the groups(expert, non-expert) motor skill levels were show significant improvement of the accuracy and variable in internal timing with ctDCS(anode) and its non-expert had bigger improvements than expert in in-external timing task.