Finite-element simulation of human brain electric activity

Finite-element simulation of human brain electric activity
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人脑电活动的有限元模拟

DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
Zhanghong Tang
Zhanghong Tang
中科院分区：
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文献类型：
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作者：
Jiansheng Yuan;Zhanghong Tang

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用有限元法模拟了偶极子在人脑中产生的电流分布。采用电流偶极子来模拟大脑中的神经源。导出了偶极子源和各向异性介质的有限元公式。提出了一种在各向异性介质势问题计算中建立有限元方程组对称刚度矩阵的方法。模拟了具有各向异性导电介质的头部的真实形状。
The electric current distribution produced by dipoles in human brains is simulated by the finite-element method. Current dipoles are adopted to simulate the nerve sources in the brain. A finite-element formula related to dipole sources and anisotropic media is derived. An approach for creating a symmetrical stiffness matrix of the finite-element equation system in the computation of potential problems with anisotropic media is presented. The realistic shape of the head with anisotropic conducting media is simulated.