[1] Nagoya Univ, Grad Sch Informat Sci, Nagoya, Aichi, Japan
[2] Natl Ctr Neurol & Psychiat, Natl Inst Neurosci, Dept Ultrastruct Res, Kodaira, Tokyo, Japan
[3] RIKEN BSI, Lab Mol Anal Higher Brain Funct, Ichinohe Neural Syst Grp, Kodaira, Tokyo, Japan