1. 1 Mental Health Research and Treatment Center, Ruhr-Universität Bochum, Bochum, Germany
2. 2 Department of Social Psychology, Ruhr-Universität Bochum, Bochum, Germany
3. 3 Department of Psychosomatic Medicine, Rehabilitation Center Seehof, Federal German Pension Agency, and Psychosomatic Rehabilitation Research Group, Charité – Universitätsmedizin Berlin, Berlin, Germany