Inverse solutions based on MEG and EEG applied to volume conductor analysis.
Inverse solutions based on MEG and EEG applied to volume conductor analysis.
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基于脑磁图和脑电图的逆解应用于体积导体分析。
DOI：
10.1088/0031-9155/32/1/015
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发表时间：
1987
影响因子：
3.5
通讯作者：
M. Peters
中科院分区：
文献类型：
--
作者：
C. J. Stok;J. W. Meijs;M. Peters
逆解计算机程序使用选定体积导体中的单个电流偶极子，根据磁图或脑电图分布计算等效偶极子。该程序用于评估头部的多个体积导体模型，在生成分布时使用一个模型，在计算等效偶极子时使用另一个模型。以相同的方式研究等效偶极子中的误差源，即模型参数（例如电导率）的不确定性和 MEG 或 EEG 分布中的噪声。引入逼真的头部模型来研究球形模型的使用范围。
An inverse solution computer program, using a single current dipole in a selected volume conductor, calculates an equivalent dipole from a magneto- or electroencephalographic distribution. The program is used to evaluate several volume conductor models of the head by using one model when generating the distribution and another when calculating the equivalent dipole. Sources of errors in the equivalent dipole, namely uncertainties in the model parameters (e.g. conductivities) and noise in the MEG or EEG distribution, are investigated in the same way. A realistically shaped model of the head is introduced to investigate the extent to which sphere-shaped models can be used.