1. Department of Neurology, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany
2. Brain Imaging Center Jena, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany
3. Department of Psychiatry and Psychotherapy, Jena University Hospital, Philosophenweg 3, D-07743 Jena, Germany
4. Medical Physics Group, Institute of Diagnostic and Interventional Radiology, Jena University Hospital, Philosophenweg 3, D-07743 Jena, Germany
5. Jena Centre for Healthy Aging, Jena University Hospital, D-07747 Jena, Germany
6. Biomagnetic Center, Department of Neurology, Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany