Table 2 A comparison of the different methods for solving Poisson's equation in a realistic head model is presented.
From: Review on solving the forward problem in EEG source analysis
| Â | BEM | FEM | iFDM | aFDM |
|---|---|---|---|---|
Position of computational points | surface | volume | volume | volume |
Free choice of computational points | yes | yes | no | no |
System matrix | full | sparse | sparse | sparse |
Solvers | direct | iterative | iterative | iterative |
Number of compartments | small | large | large | large |
Requires tesselation | yes | yes | no | no |
Handles anisotropy | no | yes | no | yes |