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

Figure 7

The electric potential on the surface and surroundings, along the rays , (position A, left column) and , (position B, right column), respectively, for distinct values of the perturbation parameter , depending on the irregularities in appearance of the upper part of the human cranium as displayed in Figure 3. Again, each row represents a specific dipole arrangement, namely, (1) positioned at m and , with moments  Cm; (2) at m, , , and  Cm; (3) situated at m, , , and  Cm.