Aihara Complexity Modelling Project, ERATO, JST, 4-6-1 Komaba, Meguro, Tokyo 153-8505, Japan.|Aihara Complexity Modelling Project, ERATO, JST, 4-6-1 Komaba, Meguro, Tokyo 153-8505, Japan.|Aihara Complexity Modelling Project, ERATO, JST, 4-6-1 Komaba, Meguro, Tokyo 153-8505, Japan.