OpenMEEG for M/EEG forward modeling: a comparison study

Abstract : Neuroimaging with magneto and electroencephalography (M/EEG) requires to compute the forward problem. It consists in predicting what is measured by MEG or EEG sensors due to a configuration of current generators within the head. When considering realistic head models, the equations derived from Maxwell equations can only be solved numerically. The Boundary Element Method is a standard approach to address this problem. However, different mathematical and computational variants exist within this class of BEM solvers. At least two BEM formulations exist for M/EEG forward modeling (Geselowitz, 1967 and Kybic et al., 2005). Also implementation details vary between the different software packages (e.g. the precision of the numerical integrations). In order to investigate the influence of such differences, we have conducted a numerical experiment that evaluates the precision of 4 different freely available BEM solvers. Results show that OpenMEEG outperforms the alternative software packages.
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Human Brain Mapping, Jun 2010, Barcelone, Spain
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Contributeur : Alexandre Gramfort <>
Soumis le : jeudi 15 juillet 2010 - 15:50:14
Dernière modification le : vendredi 22 juin 2018 - 01:20:33
Document(s) archivé(s) le : mardi 23 octobre 2012 - 10:25:36


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  • HAL Id : inria-00502745, version 1


Alexandre Gramfort, Théodore Papadopoulo, Emmanuel Olivi, Maureen Clerc. OpenMEEG for M/EEG forward modeling: a comparison study. Human Brain Mapping, Jun 2010, Barcelone, Spain. 〈inria-00502745〉



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