一种新的脑电逆问题求解方法  

A new method for EEG inverse problem solution

作　　者：周霆[1] 李娟[1] 潘林[1] 余轮[1] 

机构地区：[1]福州大学物理与信息工程学院,福建福州350108

出　　处：《福州大学学报（自然科学版）》2009年第4期508-513,587,共7页Journal of Fuzhou University(Natural Science Edition)

基　　金：福建省教育厅科研项目资助(JA08006)

摘　　要：以"路"代"场",把脑电逆问题看成是从颅内大脑皮质层源电位到头皮实测EEG信号之间的电路网络传输,从能量守恒、动能位能的相互转换等普适性原理出发,建立了动态的电压平衡方程.用经验模态分解等方法反演计算出脑电生理学材料参数之后,通过求解该方程来确定脑电的源电位,为解决脑电逆问题提供新的途径.The paper considered the EEG inverse problem as circuit transmission from the source potential in cerebral superficial cortex to practical measured EEG signal over scurf. By studying from some universal principles, such as energy conservation equation, the transformation mechanism between kinetic energy and potential energy and so on, a dynamic voltage equilibrium equation is proposed. By using the empirical mode decomposition and other methods, the cerebral electrophysiology material parameters are inversion calculated. And then the brain electrical source potential is settled down by solving the dynamic voltage equilibrium equation. In this way, a new method for EEG inverse problem solution is proposed.

关 键 词：脑电 逆问题 反演计算 生理学材料参数 

分 类 号：R318[医药卫生—生物医学工程]