Cortical correlates of locomotor muscle synergy activation in humans: an electroencephalographic decoding study.
Cortical correlates of locomotor muscle synergy activation in humans: an electroencephalographic decoding study.
复制标题
人类运动肌肉协同激活的皮质相关性：脑电图解码研究。
DOI：
10.1016/j.isci.2019.04.008
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发表时间：
2019
期刊：
影响因子：
5.8
通讯作者：
Kimitaka Nakazawa
中科院分区：
文献类型：
--
作者：
Hikaru Yokoyama;Naotsugu Kaneko;Tetsuya Ogawa;Noritaka Kawashima;Katsumi Watanabe;Kimitaka Nakazawa
行走时的肌肉控制被认为是通过肌肉的协同作用而简化的.虽然已经报道了行走过程中显著的皮质肌连接，但皮质活动参与肌肉活动的水平（肌肉协同作用或个体肌肉水平）仍不清楚。在这里，我们研究了皮层相关的肌肉激活在步行过程中的大脑解码激活的肌肉协同作用和个别肌肉从脑电图信号。我们证明了运动肌肉协同作用的激活是从缓慢的皮质波解码的。此外，肌肉协同效应的解码准确性大于单个肌肉的解码准确性，并且单个肌肉激活的解码是基于肌肉协同效应相关的皮层信息。这些结果表明运动肌肉协同激活的皮质相关性。这些发现扩展了我们对大脑和运动肌肉协同作用之间关系的理解，并可能加速有效的脑机接口的发展，以进行步行康复。
Muscular control during walking is believed to be simplified by the coactivation of muscles calledmuscle synergies. Although significant corticomuscular connectivity during walking has been reported, the level at which the cortical activity is involved in muscle activity (muscle synergy or individual muscle level) remains unclear. Here we examined cortical correlates of muscle activation during walking by brain decoding of activation of muscle synergies and individual muscles from electroencephalographic signals. We demonstrated that the activation of locomotor muscle synergies was decoded from slow cortical waves. In addition, the decoding accuracy for muscle synergies was greater than that for individual muscles and the decoding of individual muscle activation was based on muscle-synergy-related cortical information. These results indicate the cortical correlates of locomotor muscle synergy activation. These findings expand our understanding of the relationships between brain and locomotor muscle synergies and could accelerate the development of effective brain-machine interfaces for walking rehabilitation.