1. Kyung Hee University, Research Group of Pain and Neuroscience, Seoul, Republic of Korea
2. Department of Communication Sciences and Disorders, Long Island University, Brooklyn, NY, USA
3. Psychiatric Research Group, LVR-Klinik Bedburg-Hau, Bedburg-Hau, Germany
4. Department of Medicine, Neurology, University of Fribourg, Fribourg, Switzerland
5. Radboud University Nijmegen, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands