The Influence of Age and Skull Conductivity on Surface and Subdermal Bipolar EEG Leads

Table 3

Results of the visually evoked bipolar measurement for the surface and subdermal leads of the Visible Human Woman dataset. All parameters are calculated from the brain region containing both the gray and white matters.

Leads	Conductivity Ratio	Maximum Sensitivity (A/cm^3)	HSV (mm^3)	ROISR
Surface	5∶1	0.900	221	5.95
Surface	8∶1	0.775	199	5.41
Surface	15∶1	0.515	190	4.58
Surface	30∶1	0.379	198	3.68
Subdermal	5∶1	1.689	44	6.88
Subdermal	8∶1	1.671	36	6.60
Subdermal	15∶1	1.595	27	6.20
Subdermal	30∶1	1.491	25	5.92