Source Reconstruction of Evoked Cortical Activity using Current Density Reconstruction within Realistically Shaped Head Models

It is well known that source reconstruction techniques based on EEG or MEG data are inferior to fMRI in respect to spatial resolution, but superior concerning the temporal resolution. The present contribution aims to demonstrate the power of modern source reconstruction techniques using standardized, realistically shaped volume conductor models in the spatio-temporal analysis of evoked potentials. A standardized approach of current density reconstruction within a volume conductor model derived from the so-called Montreal wharp brain as implemented in the SPM software will be demonstrated. This approach has the p…