EEG Source Localization Based on Multiple fMRI Spatial Patterns

被引:1
|
作者
Lei, Xu [1 ]
Yao, Dezhong [1 ]
机构
[1] Univ Elect Sci & Technol China, Sch Life Sci & Technol, Minist Educ, Key Lab Neuroinformat, Chengdu 610054, Peoples R China
来源
ADVANCES IN COGNITIVE NEURODYNAMICS (II) | 2011年
关键词
EEG; fMRI; Network EEG source imaging; Restricted maximum likelihood; Source reconstruction; Distributed solution; BRAIN ACTIVITY; PRIORS;
D O I
10.1007/978-90-481-9695-1_61
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
EEG source localization is an ill-posed problem, and constraints are required to ensure the uniqueness of the solution. In this paper, using independent component analysis (ICA), multiple fMRI spatial patterns are employed as the covariance priors of the EEG source distribution. With the empirical Bayes (EB) framework, spatial patterns are automatically selected and EEG sources are estimated with Restricted Maximum Likelihood (ReML). The computer simulation suggests that, in contrast to the previous methods of EB in EEG source imaging, our approach is distinctly valuable in improvement of distributed source localization.
引用
收藏
页码:381 / 385
页数:5
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