Continuous current source inversion of evoked potential fields in a spherical model head.

Continuous current source inversion of evoked potential fields in a spherical model head.
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球形模型头中诱发势场的连续电流源反演。

DOI:
10.1109/10.335836
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发表时间:
1994
期刊:
IEEE transactions on bio-medical engineering
影响因子:
--
通讯作者:
Srebro,R
Srebro,R
中科院分区:
--
文献类型:
--
作者:
Srebro,R

文献摘要

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本研究探讨了有效的生理限制皮层电流发生器在促进一个强大的解决方案,在诱发电位的逆问题。有人建议,负责诱发电位的电流源被建模为一组偶极子定向正交的皮层表面。不是使用最小范数方法,而是在解空间中搜索使预测的诱发电位头皮场的误差最小化的向量。<>
This study explores the efficacy of a physiological constraint on cortical current generators in promoting a robust solution for the inverse problem in evoked potentials. It is proposed that the current sources responsible for the evoked potential be modeled as a set of dipoles oriented orthogonal to the surface of the cortex. Rather than using a minimum norm approach, the solution space is searched for a vector that minimizes the error of the predicted evoked potential scalp field.<>