1. Human Behavior Laboratory, Institute for Sex Research, Sexual Medicine and Forensic Psychiatry, Center of Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany;
2. ;
3. Psychological Methods and Statistics, Institute for Psychology, University of Hamburg, Hamburg, Germany;
4. Department of Psychiatry and Psychotherapy, Center of Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany