1. Institute of Neuroscience and Medicine (INM-1, INM-2), Research Centre Jülich; Germany
2. Department of Diagnostic and Interventional Radiology; University Dusseldorf, Medical Faculty; D-40225 Dusseldorf Germany
3. C. and O. Vogt Institute for Brain Research, Heinrich-Heine-University Düsseldorf; Germany
4. JARA-BRAIN, Jülich-Aachen Research Alliance; Jülich Germany
5. Department of Psychiatry; Psychotherapy and Psychosomatics, RWTH Aachen University; Aachen Germany
6. Research Imaging Institute, University of Texas Health Science Center at San Antonio; Texas
7. Department of Physics; Florida International University; Miami Florida
8. South Texas Veterans Administration Medical Center; San Antonio; Texas
9. Institute of Clinical Neuroscience and Medical Psychology; Heinrich Heine University Düsseldorf; Florida