2008 International Conference on BioMedical Engineering and Informatics A New Combining Approach to Localizing the EEG Activity in the Brain: WMN and LORETA Solution May 27-May 30 ISBN: 978-0-7695-3118-2
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/BMEI.2008.255
Estimation of cerebral electric activity from the scalp electroencephalogram EEG requires a solution to the EEG inverse problem. We propose a new approach which consists in combining two methods in order to locate the brain electric activity: ‘Weighted Minimum Norm’ ‘WMN’ and ‘LOw Resolution brain Electromagnetic TomogrAphy’ ‘LORETA’. The idea that we propose is to used the current density distribution estimated by the WMN method in order to initialize the LORETA method. A comparative study of three different inverse methods, WMN, LORETA and WMN-LORETA is presented. We compare the results found with existing methods LORETA and WMN. The results reveal that WMN-LORETA is able to reconstruct a three-dimensional source distribution with a degree of localization compared to the other methods.
Index Terms:
Inverse Problem, LORETA, WMN, Localization
Citation:
Rafik Khemakkhem, Wassim Zouch, Abdelmailk Taleb-Ahmed, Ahmed Ben Hamida, "A New Combining Approach to Localizing the EEG Activity in the Brain: WMN and LORETA Solution," bmei, vol. 1, pp.821-824, 2008 International Conference on BioMedical Engineering and Informatics, 2008 Usage of this product signifies your acceptance of the Terms of Use. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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