About the Authors

Yuki Takeichi

Affiliation Department of Complex Systems Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 458-8601, Japan

Kazutoshi Sasahara

sasahara@nagoya-u.jp

Affiliation Department of Complex Systems Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 458-8601, Japan

Reiji Suzuki

Affiliation Department of Complex Systems Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 458-8601, Japan

Takaya Arita

Affiliation Department of Complex Systems Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 458-8601, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YT KS. Performed the experiments: YT KS. Analyzed the data: YT KS. Wrote the paper: YT KS RS TA.