1. Department of Neurology, University of Lübeck , 23562 Lübeck , Germany
2. Department of Psychiatry and Psychotherapy, University of Lübeck , 23562 Lübeck , Germany
3. Department of Psychology, University of Lübeck , 23562 Lübeck , Germany
4. Center of Brain, Behavior and Metabolism, University of Lübeck , 23562 Lübeck , Germany
5. Institute of Systems Motor Science, University of Lübeck , 23562 Lübeck , Germany
6. Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School , 30625 Hannover , Germany