Anatomical localization. Electrode location (green dots) displayed on coronal, saggital and axial MRI slices for Patient 1 (top) and Patient 2 (bottom). On the left hemisphere, Patient 1 had a single Heschl's gyrus and the electrode was in the border between the anterior part of Planum Temporale and posterior part of HG. On the right side, this patient had a bifurcated HG and the electrode was in the posterior medial portion of HG. For Patient 2, HG on the left was bifurcated and the electrode was on the posterior part somewhere in the middle on the medial/lateral axis. On the right hemisphere of this patient, HG is trifurcated and the electrode is on the most anterior portion, and somewhere in the middle on the medial/lateral axis. Blue—Superior Temporal Gyrus (STG), red—Heschl's gyrus (HG), and yellow—Planum Temporale.