1. Department of Psychology, Tokyo Metropolitan University, Japan Society for the Promotion of Science,
2. Keio University School of Medicine, Tokyo,
3. Division of Clinical Research, National Institute on Alcoholism, Kurihama National Hospital, Yokosuka, Japan,
4. Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, USA and
5. Department of Sociocultural Environmental Research, National Institute of Mental Health, National Center of Neurology and Psychiatry, Ichikawa, Japan