脑电-肌电信号样本熵与小波熵分析

发布时间：2018-04-27 16:05

本文选题：样本熵 + 小波熵　；参考：《测试技术学报》2016年04期

【摘要】：为了探索自主动作和电刺激产生动作两种不同模式下的大脑运动皮层活动与肌肉收缩之间的关系,搭建了脑电和肌电实验测量平台,设计了自主腕部外旋和穴位电刺激两种实验动作模式,同步采集不同动作模式诱发的脑电信号和表面肌电信号,计算和分析信号的样本熵与小波熵.结果发现穴位电刺激模式下,脑电信号样本熵增大,肌电信号样本熵减小,脑-肌电的平均互样本熵增大,肌电信号的小波熵明显减小.表明穴位电刺激使大脑活动复杂性提高,肌肉活动的有序性增强,出现了优势节律,脑-肌电协同性提高.
[Abstract]:In order to explore the relationship between cerebral motor cortex activity and muscle contraction in two different modes of autonomous action and electrical stimulation, an experimental measuring platform of EEG and EMG was built. Two experimental action modes of external rotation and electric stimulation of acupoint were designed. The EEG and surface EMG signals induced by different motion modes were collected synchronously and the sample entropy and wavelet entropy of the signals were calculated and analyzed. The results showed that the entropy of EEG samples increased, the entropy of EMG samples decreased, the mean entropy of EEG cross-samples increased and the wavelet entropy of EMG signals decreased obviously under the mode of acupoint electrical stimulation. The results showed that acupoint electrical stimulation increased the complexity of brain activity, increased the order of muscle activity, presented dominant rhythm, and enhanced the coordination of EEG and EMG.
【作者单位】：山西大学物理电子工程学院;
【基金】：国家自然科学基金资助项目(81403130) 山西省自然科学基金资助项目(2013011016-2)
【分类号】：R741.044;TN911.6

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