1. Clinical and Health Psychology, Institute of Psychology and Education, Ulm University, Albert Einstein Allee 41, Ulm, Germany
2. Clinical Psychology and Psychotherapy, Department of Psychology, Eberhard Karls University of Tübingen, 72076 Tübingen, Germany
3. Section for Neurostimulation, Department of Psychiatry, Ulm University, 89075 Ulm, Germany