An EEG forward solution using second-order anisotropic FEM

摘要

A 2nd order finite element method (FEM) algorithm has been developed to solve the anisotropic electroencephalogram (EEG) forward problem and has been evaluated by comparing with analytic solutions in a multispheres concentric head model. The present simulation study indicates that the 2nd order FEM provides substantially enhanced numerical accuracy and computational efficiency, as compared with the 1st order FEM for comparable numbers of tetrahedron elements.