1 Maurits van den Noort, Professor/Scientist, Research Group of Pain and Neuroscience, Kyung Hee University, Seoul, Republic of Korea; Peggy Bosch, Postdoc/Scientist, Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, The Netherlands; Sabina Lim, Professor/Scientist, Research Group of Pain and Neuroscience, Kyung Hee University, Seoul, Republic of Korea; Daniela Litscher, Postdoc/Scientist, Gerhard Litscher, Professor/Scientist, Research Unit of Biomedical Engineering in Anesthesia and Intensive Care Medicine, Medical University of Graz, Graz, Austria. Email: lims@khu.ac.kr.