1. Department of Developmental Physiology, National Institute for Physiological Sciences, Okazaki, Japan;
2. Core Research for Evolutional Science and Technology (CREST) of Japan Science and Technology Corporation (JST), Kawaguchi, Japan;
3. The Graduate School for Advanced Studies (SOKENDAI), Hayama, Japan;
4. Department of Integrative Physiology, Kyorin University School of Medicine, Mitaka, Japan;
5. Department of Integrative Medical Biology, Section of Physiology, Umea University, Umea, Sweden;
6. Department of Physiology, Göteborg, University, Göteborg, Sweden; and
7. Tokyo Metropolitan Institute for Neuroscience, Fuchu, Japan