Elsevier

NeuroImage

Volume 42, Issue 4, 1 October 2008, Pages 1490-1498
NeuroImage

Technical Note
Electromagnetic source reconstruction for group studies

https://doi.org/10.1016/j.neuroimage.2008.06.022Get rights and content
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Abstract

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.

Keywords

Hierarchical Bayes
Source reconstruction
EEG
MEG
Restricted maximum likelihood
Automatic relevance determination

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