EEG localization error exploration vs distance between sources

The study of the cerebral electric activity in the brain, requires estimation of the EEG inverse problem. Several methods of the inverse problem solution are studied in the literature. In this paper we propose a comparative study of the localization error based on distance between active sources, using WMN-FOCUSS, LORETA-FOCUSS, and Shrinking sLORETA-FOCUSS as inverse problem solution. So, we consider the presence of two active sources whose distance intervals range from 1cm to 10cm. This study is made in a first case using electrode configuration on the entire brain, and in a second case on each lobe separately. The presented results show that the new approach for the separately lobes gives a good localization of the active sources in the brain.