1. Department of Computer Science, University of Rostock, Rostock, Germany
2. German Center for Neurodegenerative Diseases (DZNE), Rostock, Germany
3. Department of Psychosomatic and Psychotherapeutic Medicine, University of Rostock, Rostock, Germany
4. Department of Psychology –Gerontopsychology and Gerontology, University of Zurich, Zurich, Switzerland
5. University Research Priority Program “Dynamics of Healthy Aging”, University of Zurich, Zurich, Switzerland