The offset direction of estimated dipoles in different anatomical locations using standard adult skull conductivity (SSCR 1:80). (A–C) The offset direction of the estimated dipole with the source located in the mesial temporal structure shifted outward-forward-downward, in relation to the location of stimulating contacts (crosshair). (D–F) The offset direction of the estimated dipole with the source located in the lateral temporal cortex shifted inward-forward-downward in relation to the location of stimulating contacts (crosshair). (G–I) The offset direction of the estimated dipole with the source located in the lateral frontal cortex shifted inward-forward-downward in relation to the location of stimulating contacts (crosshair). Remark: post-implantation MRI on the figures is for illustration purposes.