About the Authors

Hironori Asai

Contributed equally to this work with: Hironori Asai, Shunsuke Iwamori, Hideo Iwasaki

Affiliation Department of Electrical Engineering and Biological Science, Waseda University (TWIns), Tokyo, Japan

Shunsuke Iwamori

Contributed equally to this work with: Hironori Asai, Shunsuke Iwamori, Hideo Iwasaki

Affiliation Department of Electrical Engineering and Biological Science, Waseda University (TWIns), Tokyo, Japan

Kentaro Kawai

Affiliation Department of Electrocic and Photonic Systems, Waseda University, Tokyo, Japan

Shigeki Ehira

Affiliation Department of Biological Science, Chuo University, Kasuga, Tokyo

Jun-ichi Ishihara

Affiliation Department of Electrical Engineering and Biological Science, Waseda University (TWIns), Tokyo, Japan

Kazuyuki Aihara

Affiliations Institute of Industrial Science, The University of Tokyo, Tokyo, Japan, ERATO Aihara Complexity Modelling Project, JST, Tokyo, Japan

Shuichi Shoji

Affiliations Department of Electrical Engineering and Biological Science, Waseda University (TWIns), Tokyo, Japan, Department of Electrocic and Photonic Systems, Waseda University, Tokyo, Japan

Hideo Iwasaki

Contributed equally to this work with: Hironori Asai, Shunsuke Iwamori, Hideo Iwasaki

hideo-iwasaki@waseda.jp

Affiliations Department of Electrical Engineering and Biological Science, Waseda University (TWIns), Tokyo, Japan, PRESTO, Japan Science and Technology Agency (JST), Tokyo, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HI. Performed the experiments: HA SI HI. Analyzed the data: HA SI JiI HI. Contributed reagents/materials/analysis tools: HA KK SE KA SS HI. Wrote the paper: HA SI HI.