About the Authors

Tomokazu Tsurugizawa

tsurugizawa@gmail.com

Affiliations Institute for Innovation, Ajinomoto Co., Inc., Kawasaki, Japan, NeuroSpin, Commissariat à l'Energie Atomique et aux Energies Alternatives, CEA Saclay, Gif-sur-Yvette, France

Shinsuke Tokuda

Affiliation Department of Behavioral Science, Graduate School of Letters, Hokkaido University, Sapporo, Japan

Tokiko Harada

Affiliation Division of Cerebral Integration, National Institute for Physiological Sciences, Okazaki, Japan; Department of Physiological Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Japan

Taiki Takahashi

Affiliation Department of Behavioral Science, Graduate School of Letters, Hokkaido University, Sapporo, Japan

Norihiro Sadato

Affiliation Division of Cerebral Integration, National Institute for Physiological Sciences, Okazaki, Japan; Department of Physiological Sciences, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Japan

Competing Interests

The authors have the followng interests. This study was financially supported by Ajinomoto Co., Inc (http://www.ajinomoto.co.jp/) for data collection. Tomokazu Tsurugizawa was employed by Ajinomoto Co., Inc. There are no patents, products in development or marketed products to declare. This does the authors' alter our adherence to all the PLOS ONE policies on sharing data and materials, as detailed online in the guide for authors.

Author Contributions

Conceived and designed the experiments: TTs TH TTa NS. Performed the experiments: TTs TH. Analyzed the data: TTs ST TTa. Contributed reagents/materials/analysis tools: TTs TH TTa NS. Wrote the paper: TTs ST TTa.