Extended Data Fig. 6: Alteration of DTI model of CL/DTTm in P4 by local hemorrhage within right thalamus.

MRI image shows large susceptibility artifact in the right central thalamus secondary to duret hemorrhage. Right panels: Distortion of MRI signal in this region limits the formation of DTI modeled fibers as seen in the six views comparing the presurgical locations of electrode placements (green electrode models) and postsurgical actual locations (gray electrodes). As seen in each panel, postsurgical electrode placement is medial to planned location. As shown in Fig. 5, a relative symmetry of cortical response is nonetheless obtained suggesting that more medial fibers associated with this pattern activation did not appear in the DTI model due to the loss of local signal in the region of the hemorrhage.