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

Table 2

Introduced errors neglecting geometric variations of the upper part of the head for selected positions and specific values of the perturbation parameter on EEG measurements, as displayed in Figure 7.

		Position A		Position B
			Error		Error
		(mV s)	%	(mV s)	%
	0	−0.2117		−0.7123
	0.002	−0.2043	3.49	−0.7154	0.43
	0.004	−0.1969	6.99	−0.7184	0.85
	0.006	−0.1894	10.53	−0.7214	1.28
	0.008	−0.1820	14.03	−0.7244	1.70
	0.010	−0.1746	17.52	−0.7275	2.13
	0	−3.003		−4.563
	0.002	−3.086	2.76	−4.539	0.52
	0.004	−3.168	5.49	−4.515	1.05
	0.006	−3.251	8.26	−4.491	1.58
	0.008	−3.333	10.99	−4.467	2.10
	0.010	−3.416	13.75	−4.443	2.63
	0	−0.7185		−1.416
	0.002	−0.6819	5.09	−1.420	0.28
	0.004	−0.6453	10.2	−1.423	0.49
	0.006	−0.6087	15.3	−1.427	0.77
	0.008	−0.5721	20.4	−1.431	1.06
	0.010	−0.5355	25.5	−1.434	1.27