Modulation of Event-related Desynchronization during Motor Imagery with Transcranial Direct Current Stimulation in a Patient with Severe Hemiparetic Stroke : A Case Report

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著者

    • MATSUMOTO Jun
    • School of Fundamental Science and Technology, Graduate School of Keio University
    • HONAGA Kaoru
    • Department of Rehabilitation Medicine, School of Medicine, Keio University
    • USHIBA Junichi
    • Department of Biosciences and Informatics, Faculty of Science and Technology, Keio University
    • TSUJI Tetsuya
    • Department of Rehabilitation Medicine, School of Medicine, Keio University
    • HASE Kimitaka
    • Department of Rehabilitation Medicine, School of Medicine, Keio University
    • LIU Meigen
    • Department of Rehabilitation Medicine, School of Medicine, Keio University

抄録

Recently, surface electroencephalogram (EEG)-based brain-machine interfaces (BMI) have been used for people with disabilities. As a BMI signal source, event-related desynchronization of alpha-band EEG (8-13 Hz) during motor imagery (mu ERD), which is interpreted as desynchronized activities of the activated neurons, is commonly used. However, it is often difficult for patients with severe hemiparesis to produce mu ERD of sufficient strength to activate BMI. Therefore, whether it is possible to modulate mu ERD during motor imagery with anodal transcranial direct-current stimulation (tDCS) was assessed in a severe left hemiparetic stroke patient. EEG was recorded over the primary motor cortex (M1), and mu ERD during finger flexion imagery was measured before and after a 5-day course of tDCS applied to M1. The ERD recorded over the affected M1 increased significantly after tDCS intervention. Anodal tDCS may increase motor cortex excitability and potentiate ERD during motor imagery in patients with severe hemiparetic stroke.

収録刊行物

  • Keio journal of medicine

    Keio journal of medicine 60(4), 114-118, 2011-12-01

    The Keio Journal of Medicine

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各種コード

  • NII論文ID(NAID)
    10030164572
  • NII書誌ID(NCID)
    AA00710216
  • 本文言語コード
    ENG
  • 資料種別
    NOT
  • ISSN
    00229717
  • データ提供元
    CJP書誌  J-STAGE 
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