1. Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf , Hamburg , Germany
2. Experimental Psychopathology Lab, Institute of Psychology, Polish Academy of Sciences , Warsaw , Poland
3. Department of Psychiatry, Maryland Psychiatric Research Center, University of Maryland School of Medicine , Baltimore, MD , USA
4. Department of General Psychiatry, Center for Psychosocial Medicine, University Hospital Heidelberg , Heidelberg , Germany