Electromagnetic source reconstruction for group studies

被引:140
作者
Litvak, Vladimir [1 ]
Friston, Karl J. [1 ]
机构
[1] UCL, Wellcome Trust Ctr Neuroimaging, Inst Neurol, London WC1N 3BG, England
基金
英国惠康基金;
关键词
hierarchical Bayes; source reconstruction; EEG; MEG; restricted maximum likelihood; automatic relevance determination;
D O I
10.1016/j.neuroimage.2008.06.022
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The aim of this paper is to describe a simple procedure for electromagnetic (EEG or MEG) source reconstruction, in the context of group studies. This entails a simple extension of existing source reconstiruction techniques based upon the inversion of hierarchical models. The extension ensures that evoked Or induced responses are reconstructed in the same subset of sources, over subjects. Effectively, the procedure aligns the deployment of reconstructed activity over subjects and increases, substantially, the detection of differences between evoked or induced responses at the group or between-subject level. (C) 2008 Elsevier Inc. All rights reserved.
引用
收藏
页码:1490 / 1498
页数:9
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