Brain stimulation associated to motor skill learning

2015 Fiscal Year Final Research Report

• Project/Area Number: 25350815
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Sports science
• Research Institution: Hiroshima University
• Principal Investigator: Funase Kozo 広島大学, 総合科学研究科, 教授 (40173512)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: スポーツ科学 / 経頭蓋磁気刺激 / 一次運動野 / 興奮性 / 動作スキル学習 / 運動パフォーマンス

Outline of Final Research Achievements

First, we found that the number of repetitive practices of post-learning of visual tracking task which requires the error correction is strongly related to the changes in motor cortex (M1) excitability and the retention of the motor learning. Second, we investigated the effect of intervention using an invasive brain stimulation, paired associative simulation (PAS), on the maximum voluntary contraction (MVC) and the maximum acceleration during ballistic abduction movement of an index finger. temporal increase of motor evoked potential (MEP) amplitude after PAS intervention was confirmed, and also, temporal increase of MVC was detected. However, the maximum acceleration was not affected by the PAS intervention. It is suggested that the intervention using an invasive brain stimulation possibely affects the fundamental motor performance.

Free Research Field

運動神経生理学