Multiple interface brain and head models for EEG: A surface charge approach

Electroenecephalography (EEG) studies can be carried out using forward methods, where the scalp potential is first determined for given localized brain neural dipole sources. The recently introduced surface charge forward method addresses the forward problem by means of an integral equation where the accumulated charge at the boundaries between homogeneous regions is taken as the basic variable. We demonstrate the application of this method to the case of realistic head shapes with multiple homogenous regions and discuss the use of these results to source tracking problems.