ATR Computational Neuroscience Laboratories, Hikaridai, Seika-cho, Soraku-gun, Kyoto, Japan.
J Neuroeng Rehabil. 2012 Aug 16;9:56. doi: 10.1186/1743-0003-9-56.
We developed an electroencephalogram-based brain computer interface system to modulate functional electrical stimulation (FES) to the affected tibialis anterior muscle in a stroke patient. The intensity of FES current increased in a stepwise manner when the event-related desynchronization (ERD) reflecting motor intent was continuously detected from the primary cortical motor area.
We tested the feasibility of the ERD-modulated FES system in comparison with FES without ERD modulation. The stroke patient who presented with severe hemiparesis attempted to perform dorsiflexion of the paralyzed ankle during which FES was applied either with or without ERD modulation.
After 20 minutes of training, the range of movement at the ankle joint and the electromyography amplitude of the affected tibialis anterior muscle were significantly increased following the ERD-modulated FES compared with the FES alone.
The proposed rehabilitation technique using ERD-modulated FES for stroke patients was feasible. The system holds potentials to improve the limb function and to benefit stroke patients.
我们开发了一种基于脑电图的脑机接口系统，以调制功能性电刺激（FES）到脑卒中患者受影响的胫骨前肌。当从初级皮质运动区连续检测到反映运动意图的事件相关去同步（ERD）时，FES 电流的强度以逐步的方式增加。
我们测试了 ERD 调制的 FES 系统与没有 ERD 调制的 FES 相比的可行性。患有严重偏瘫的脑卒中患者在应用 FES 的同时尝试进行瘫痪的踝关节背屈，其中 FES 应用有或没有 ERD 调制。
经过 20 分钟的训练，与单独使用 FES 相比，在 ERD 调制的 FES 后，踝关节的运动范围和受影响的胫骨前肌的肌电图幅度显著增加。
使用 ERD 调制的 FES 对脑卒中患者进行康复治疗的方法是可行的。该系统具有改善肢体功能和使脑卒中患者受益的潜力。
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