TMSを用いた手指のリズミック運動における運動周波数に対する皮質脊髄路興奮特性の計測

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2015/07/01

タイトル(英語): Cortical Excitability Changes during Finger Rhythmic Movement: A TMS Study

著者名: 小田垣　雅人（前橋工科大学），田浦　敏幸（前橋工科大学），伊藤　寛知（前橋工科大学），菊地 　豊（（公財）脳血管研究所・美原記念病院）

著者名(英語): Masato Odagaki (Maebashi Institute of Technology), Toshiyuki Taura (Maebashi Institute of Technology), Kanchi Ito (Maebashi Institute of Technology), Yutaka Kikuchi (Institute of Blood and Vessel, Mihara Memorial Hospital)

キーワード: 経頭蓋磁気刺激法，リズミック運動，中枢パターン発生器　　transcranial magnetic stimulation，rhythmic movement，central pattern generator

要約(英語): The central pattern generator (CPG) in the spinal cord oscillates a motor command to produce rhythmic movement, whereas several studies have described the movement frequency coding in the primary motor cortex and other motor area. However it is still unclear that the modulation of excitability in the cortico-spinal tract during rhythmic movement. We assessed cortico-spinal excitability during rhythmic movement using transcranial magnetic simulation (TMS), and analyzed the changing CPG frequency characteristic. When the subject performed rhythmic finger flexion-extension movements, TMS was applied on the primary motor cortex. Then the amplitude of the motor evoked potential (MEP) was measured on the target muscle. The frequency of the movement was varied between 0.5 and 4 Hz. We confirmed attenuated MEP was observed at 3 Hz for the finger rhythmic movements. We concluded that the motor command producing the rhythmic movement from motor cortex was decreased during specific rhythmic movement.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.135 No.7 （2015） 特集：平成26 年電子・情報・システム部門大会

本誌掲載ページ: 793-798 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/135/7/135_793/_article/-char/ja/