Table 6. Sensitivity of combined EEG/MEG spike source reconstruction with regard to skull conductivity: Differences in centroid location, orientation, strength and GOF for FT9 and F9 spike clusters for different head models from Table 1 when compared to the results achieved for the reference head model 6C_Cal.

Spike type	Head Model	Combined EEG/MEG
		Location Diff. (mm)	Orientation Diff. (degree)	Strength Diff. (%)	GOF Diff. (%)
FT9	6C_41	1.8	3	−26	0
	6C_70	1.7	8	−55	0
	6C_132	3.2	13	−56	0
	6C_330	7.8	17	−62	−1
F9	6C_41	3.3	1	−24	0
	6C_70	6.1	9	−40	−1
	6C_132	11.6	11	−42	−4
	6C_330	13.9	13	−52	−6