1. Department of Physiology, Division of Human Structure and Function
2. Laboratory for Structure and Function Research, Tokai University School of Medicine, Bohseidai, Isehara, Kanagawa 259-1193 Japan
3. Research Center for Genetic Engineeering and Cell Transplantation, Tokai University School of Medicine, Bohseidai, Isehara, Kanagawa 259-1193 Japan
4. Department of Internal Medicine, Tokai University School of Medicine, Bohseidai, Isehara, Kanagawa 259-1193 Japan
5. Brain Research Institute, University of California, Los Angeles, Los Angeles CA 90095
6. Department of Physiological Science, University of California, Los Angeles, Los Angeles CA 90095