| 电刺足三里穴脑电信号的非线性动力学方法初探 |
| |
| 引用本文： | 沈花,王宝俊,唐孝威.电刺足三里穴脑电信号的非线性动力学方法初探[J].中国医学物理学杂志,2006,23(3):216-219,208. |
| |
| 作者姓名： | 沈花 王宝俊 唐孝威 |
| |
| 作者单位： | 1. 浙江大学物理系,交叉学科实验室神经信息学中心,浙江,杭州,310027
2. 浙江大学生物医学工程系,神经信息学中心,浙江,杭州,310027 |
| |
| 摘 要： | 为探讨电刺足三里穴位引起的大脑活动的变化，本文以脑电为手段，用非线性动力学方法对电刺前后的两种脑电的非线性特征进行分析。实验结果显示，非线性特征指数，如关联维数、Lyapunov指数和测度熵，在电刺前后均能很好的区分（P〈0．05）。结果表明，电刺后大脑的随机性和无序度降低，大脑相应脑区的活动更趋于有序，且这种有序性将随着电刺次数的增加而渐趋于稳定。
|
| 关 键 词： | 电刺 足三里穴 非线性动力学 |
| 文章编号： | 1005-202X（2006）03-0216-04 |
| 收稿时间： | 2005-10-08 |
| 修稿时间： | 2005-10-08 |
Effect of Electricstimulation at Acupoint of Zusanli(St36) on EEG-a Primary Study of Nonlinear Approach |
| |
| SHEN Hua,WANG Bao-jun,TANG Xiao-wei.Effect of Electricstimulation at Acupoint of Zusanli(St36) on EEG-a Primary Study of Nonlinear Approach[J].Chinese Journal of Medical Physics,2006,23(3):216-219,208. |
| |
| Authors: | SHEN Hua WANG Bao-jun TANG Xiao-wei |
| |
| Institution: | 1.Center for Neuroinformatics in Cross-subject Lab, Physics department of Zhejiang University, Hangzhou Zhejiang 310027, China; 2.Center for Neuroinformatics,Department of Biomedical Engineering of Zhejiang University, Hangzhou Zhejiang 310027, China |
| |
| Abstract: | The different brain activities of normal state and electricstimulation at acupoint(St36) on EEG have been poorly described.This study did the primary work of nonlinear approach to analysis the dynamics characteristic of EEG under these two states.The result is,there are quite good distinguishings at the two patterns(P < 0.05),using nonlinear dynamics exponents such as,correlation dimension,lyapunov exponent and measure entropy.It means that the randomness or the disorderliness of EEG is reduced after acupoint electricstimulating,and brain is in a state of more order than control.In addition,these exponents stabilized with the increase of data getting. |
| |
| Keywords: | EEG |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
