摘要
脑电(EEG)同步被认为是脑功能区域整合的表现。高级脑功能需要具有特定功能的多区域神经系统间进行不同层次的整合和协调来完成。本文提出了一种新的相位同步分析方法—互近似熵。采用分段频率,用同步指数、互信息熵与互近似熵方法对视听刺激EEG导联数据进行了相位同步的比较分析,三种分析得到了一致的结果,说明互近似熵方法也能很好反映出两导联的相位同步。文章同时通过相位同步分析结果进行了大脑反应区域的探索分析。此研究为脑机接口的设计奠定了基础。
EEG Synchronization is considered the conformity of the brain functional areas. Advanced brain function requires many nervous systems with a specific function in relevant brain regions （areas）to achieve integration and co- ordination at different levels. In this paper, a new method for phase synchronization analysis-Mutually Approximate Entropy is proposed to process different frequency band of EEG signal during audio-visual stimulation and get Similar results with the method of Synchronization Index and Mutual Information Entropy. This showed that the Mutually Approximate Entropy can lead to a good indication of the phase synchronization between two leads. The paper also explored the brain reaction zone by the results of the phase synchronization analysis. The research work lays the foundation for the brain-computer interface design.
出处
《生物医学工程学杂志》
EI
CAS
CSCD
北大核心
2012年第4期645-649,共5页
Journal of Biomedical Engineering
基金
北京市教委面上项目资助(KM201010772005)
关键词
视听刺激
相位同步
互近似熵
脑功能区
Audio-visual stimulation
Phase synchronization
Mutually Approximate Entropy
Brain reaction zone
