Kazuo Shigemasu is Professor Emeritus of the University of Tokyo and visiting Professor of Psychology at Keio University (Tokyo) and has held faculty appointments in psychology at the University of Tokyo, Teikyo University, Tokyo Institute of Technology and Tohoku University. His research focus is methodology in psychology, particularly based on the Bayesian statistical approach. Shigemasu has served as president of the Japanese Psychological Association, the Behaviormetric Society, and Japanese Association for Research on Testing.
Sonoko Kuwano is Professor Emeritus of Osaka University, Japan. Her main research focuses on environmental psychology. She is a member of the Science Council of Japan. She has served as a member of the Executive Committee of International Union of Psychological Science, Vice-President of the International Commission for Acoustics, President of the Acoustical Society of Japan and President of the Japanese Society for Music Perception and Cognition. She received Commendations for Contributions in Environmental Conservation from the Minister of the Environment in 2006.
Takao Sato is Dean and Professor of Comprehensive Psychology at Ritsumeikan University, Osaka, Japan. Formerly Professor of Psychology at the University of Tokyo, his research is mainly concerned with visual and auditory perception, especially visual perception of spatio-temporal patterns, and of motion and depth. He was President of Japanese Psychological Association and President of the Vision Society of Japan and of the Japanese Psychonomic Society.
Tetsuro Matsuzawa is Distinguished Professor at the Kyoto University Institute for Advanced Study (KUIAS), Kyoto, Japan, His research focuses on the cognition and behavior of chimpanzees, both in the wild and in the laboratory. Matsuzawa is the former president of International Primatological Society, and the Editor-in-Chief of the journal PRIMATES.