Fig. 6

GMPI reflects channel position relative to cerebral cortex. a An MRI inset is shown with atlas (i.e., Destrieux) and three meshes are shown representing Hippocampus (green) Amygdala (yellow) and pial (red) surfaces. Segmented contact positions are represented as pink spheres centered in the estimated position. b This panel shows a zoom-in on the segmented contact plane where it can be seen the contact positions, the intersection between plane and subcortical structures (i.e., Hip and Amy). Cortical sheet has been marked with brown color. The axis below shows that GMPI decreases while the shaft penetrates white matter fibers with increasing distance from cortical sheet. c Probability (top) and cumulative (bottom) distributions of GMPI values across all cortical contacts