1. Institute of Psychology in Education, Leuphana Universität Lüneburg, Universitätsallee 1, DE-21335 Lüneburg, Germany
2. Department of Psychology, Europäische Fernhochschule Hamburg, University of Applied Sciences, Doberaner Weg 20, DE-22143 Hamburg, Germany
3. Bundeswehrkrankenhaus Hamburg, Klinik Für Neurologie, Lesserstraße 180, DE-22049 Hamburg, Germany
4. Department of Oral and Maxillofacial Surgery, Heinrich Heine University Duesseldorf, Moorenstrasse 5, DE-40225 Duesseldorf, Germany