1. Department of Internal Medicine and Oncology, Semmelweis University, 1083 Budapest, Hungary
2. Department of Clinical Psychology, Semmelweis University, 1091 Budapest, Hungary
3. Faculty of Medicine, Semmelweis University, 1085 Budapest, Hungary
4. Department of Cognitive Science, Budapest University of Technology and Economics, 1111 Budapest, Hungary
5. Institute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, 1117 Budapest, Hungary
6. Center for Cognitive Medicine, University of Szeged, 6720 Szeged, Hungary
7. Division of Gastroenterology, McGill University Health Center, Montreal, QC H3A 0G4, Canada