1. Medical Physics Laboratory, School of Medicine, National and Kapodistrian University of Athens, 115 27 Athens, Greece
2. First Department of Neurology, Aeginition Hospital, School of Medicine, National and Kapodistrian University of Athens, 115 27 Athens, Greece
3. Second Department of Psychiatry, Attikon General University Hospital, School of Medicine, National and Kapodistrian University of Athens, 124 62 Athens, Greece
4. School of Medicine, Democritus University of Thrace, 681 00 Alexandroupolis, Greece
5. Radiology Research Unit, School of Medicine, National and Kapodistrian University of Athens, 115 27 Athens, Greece
6. Department of Psychology, National and Kapodistrian University of Athens, 157 84 Athens, Greece
7. Department of Psychology, University of Edinburgh, Edinburgh EH8 9YL, UK
8. Computational Neuroimaging Group, Trinity College, D02 R590 Dublin, Ireland
9. Department of Neurology, St Jame’s Hospital, D08 NHY1 Dublin, Ireland