Video 3.

Patient C.II.1: Segment 1 (before DBS): generalized tremulous dystonia with jerky features affecting more prominently the neck (left torticollis), right upper limb and left lower limb (striatal toe); voice tremor; writer's cramp with writing tremor; segment 2 and 3 (4 and 10 years after pallidal DBS): improvement of cervical dystonia and lower limb dystonia; persistence of dystonic head and upper limb tremor, dystonic posturing of the left upper limb when outstretched and writer's cramp/writing tremor.