1. Department of Neurology, Klinikum Bremen-Ost, Züricher Str. 40, 28325 Bremen, Germany, University of Oldenburg, Institute for Psychology, 26111 Oldenburg, Germany,
2. MeVis, Center for Medical Diagnostic Systems and Visualization, Universitätsallee 29, 28359 Bremen, Germany
3. Department of Neurology, Klinikum Bremen-Ost, Züricher Str. 40, 28325 Bremen, Germany
4. Department of Neurology, Klinikum Bremen-Ost, Züricher Str. 40, 28325 Bremen, Germany, University of Oldenburg, Institute for Psychology, 26111 Oldenburg, Germany
5. Department of Radiology, Klinikum Bremen-Ost, Züricher Str. 40, 28325 Bremen, Germany