Sensitivity Analysis of the Forward Electroencephalographic Problem Depending on Head Shape Variations

Table 1

Introduced errors neglecting local distortions for selected positions and specific values of the perturbation parameter on EEG measurements, as displayed in Figure 5.

		Position A		Position B
			Error		Error
		(mV s)	%	(mV s)	%
	0	−0.1739		−0.6051
	0.002	−0.1727	0.69	−0.6087	0.59
	0.004	−0.1716	1.32	−0.6123	1.19
	0.006	−0.1704	2.01	−0.6159	1.78
	0.008	−0.1692	2.70	−0.6195	2.38
	0.010	−0.1680	3.39	−0.6232	2.99
	0	−1.559		−4.333
	0.002	−1.542	1.09	−4.343	0.23
	0.004	−1.526	2.12	−4.353	0.46
	0.006	−1.510	3.14	−4.362	0.67
	0.008	−1.494	4.16	−4.372	0.90
	0.010	−1.478	5.19	−4.382	1.13
	0	−0.6896		−1.299
	0.002	−0.6757	2.02	−1.290	0.69
	0.004	−0.6618	4.03	−1.281	1.38
	0.006	−0.6478	6.06	−1.272	2.08
	0.008	−0.6339	8.08	−1.263	2.77
	0.010	−0.6200	10.1	−1.254	3.46