A Method to Calculate Source Potential in Realistic Head Model and Its Effectiveness

In this work, a boundary element method was developed for the forward calculation of the source potential in a realistic head model. A high calculation precision is arrived through the use of the deflation technique and isolated problem approach. Based on the developed method, both source potential and the canonical cortical surface potential are calculated and compared, and the result indicates that the source potential is a better imaging modality than the cortical surface potential.