1. Department of Psychiatry Ludwig-Maximilians University, Munich, Germany
2. Institute of Psychology, University of Osnabrueck, Osnabrueck, Germany
3. DZNE, German Center for Neurodegenerative Disorders, Rostock, Germany
4. Department of Psychiatry, Psychosomatic Medicine & Psychotherapy, Goethe University, Frankfurt/Main, Germany
5. Institute for Stroke and Dementia Research, Klinikum Großhadern, Ludwig-Maximilians University Munich, Munich, Germany