Department for Psychology and Psychotherapy, Witten/Herdecke University, Witten, Germany, naomi.lyons@uni-wh.de. Burghof-Klinik Rinteln, Center for Systems Neuroscience Hannover, Center for Mental Health, Hannover Medical School, Hannover, Germany. Department for Psychology and Psychotherapy, Witten/Herdecke University, Witten, Germany. Psychiatry, Psychotherapy, Psychosomatics, Ruhr-University Bochum, Bochum, Germany. Marienhospital Dortmund, Dortmund, Germany. Psychiatry, Universtiäts-Klinkum Essen, Essen, Germany.