1. Department of Neurosurgery, University of Regensburg Medical Center, Regensburg, Germany.
2. Center for Deep Brain Stimulation, University of Regensburg Medical Center, Regensburg, Germany.
3. Institute of Radiology, and University of Regensburg Medical Center, Regensburg, Germany.
4. Department of Neurology, University of Regensburg Medical Center, Regensburg, Germany.
5. Department of Molecular Neurology, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany.
6. Institute of Psychology, University of Regensburg, Regensburg, Germany.