不同导同步脑电波信号的DFA分析  

DFA Analysis of Two Different Synchronous EEG Signals

作　　者：罗海山[1] 刘志峰[1] 王晓宏[1] 

机构地区：[1]中国科学技术大学热科学和能源工程系,安徽合肥230027

出　　处：《生物医学工程研究》2004年第4期204-206,共3页Journal Of Biomedical Engineering Research

基　　金：安徽省自然科学基金资助项目 (0 30 4 6 10 4 )

摘　　要：通过对欧洲格式 (EDF)的两个同步导脑电波信号Fpz -Cz及Pz -OzDFA的分析 ,表明这两个导的DFA结果有显著差异 ,Pz -Oz的分析结果和MIT脑电信号的分析结果类似 ;而Fpz -Cz的分析结果则明显不同。表明不同导的脑电信号可能具有完全不同的长程相关性质。因此 ,利用DFA方法判读睡眠阶段时 ,要选择合适的导。Essential differences are found between the long-range correlations of the two synchronous EEG signals (Fpz-Cz and Pz-Oz electrodes) from EDF database based upon the detrended fluctuation analysis (DFA) method. The signals of the Pz-Oz electrode have the similar scaling behaviors as the EEG signals from the MIT/BIH database and can be used for distinguishing the sleep stages, while the signals of the Fpz-Cz electrode is different obviously. It indicates that the EEG signals of the Fpz-Cz and Pz-Oz electrodes may have the different long-range correlations. As a result, when discriminating the sleep stages, the EEG signals of the suitable electrode should be choosed.

关 键 词：脑电信号 脑电波 睡眠 分析结果 DFA EDF 阶段 判读 

分 类 号：Q523[生物学—生物化学] R741.044[医药卫生—神经病学与精神病学]