1 Lentis Psychiatric Institute, Center for Integrative Psychiatry, Groningen, the Netherlands; University of Groningen, Department of Clinical Psychology and Experimental Psychopathology, Groningen, the Netherlands. Electronic address: n.vollbehr@lentis.nl.
2 University of Groningen, Faculty of Philosophy, Groningen, the Netherlands.
3 University of Groningen, University Medical Center Groningen, University Center for Psychiatry, Rob Giel Research Center, Groningen, the Netherlands.
4 University of Groningen, Department of Clinical Psychology and Experimental Psychopathology, Groningen, the Netherlands.
5 Lentis Psychiatric Institute, Center for Integrative Psychiatry, Groningen, the Netherlands; University of Groningen, Faculty of Religon, Culture and Society, Groningen, the Netherlands.