Table 4. Sensitivity of EEG and MEG spike source reconstruction with regard to three compartment (3C) or six compartment (6C) head modeling: Differences in centroid location, orientation and strength for FT9 and F9 spike clusters for the two 3C head models from Table 1 when compared to the results achieved with the reference head model 6C_Cal.
| Spike type | Head Model | EEG | MEG | ||||
| Location Diff. (mm) | Orientation Diff. (degree) | Strength Diff. (%) | Location Diff. (mm) | Orientation Diff. (degree) | Strength Diff. (%) | ||
| FT9 | 3C_100 | 16.2 | 13.1 | −79 | 8.7 | 2.2 | 43 |
| 3C_Cal | 4.4 | 3.8 | −36 | 8.6 | 15.0 | 67 | |
| F9 | 3C_100 | 14.6 | 17.8 | −77 | 8.6 | 4.1 | 40 |
| 3C_Cal | 3.2 | 12.5 | −28 | 9.1 | 7.0 | 72 | |