About the Authors

Noriyuki Oka

Affiliation Department of Brain Environmental Research, KatoBrain Co., Ltd., Tokyo, Japan

Kayoko Yoshino

Affiliation Department of Brain Environmental Research, KatoBrain Co., Ltd., Tokyo, Japan

Kouji Yamamoto

Affiliation Department of Environment/Engineering, Tokyo Branch, Central Nippon Expressway Co., Ltd, Tokyo, Japan

Hideki Takahashi

Affiliation Department of Environment/Engineering, Central Nippon Expressway Co., Ltd., Nagoya, Japan

Shuguang Li

Affiliation Institute of Industrial Science, the University of Tokyo, Tokyo, Japan

Toshiyuki Sugimachi

Affiliation Institute of Industrial Science, the University of Tokyo, Tokyo, Japan

Kimihiko Nakano

Affiliation Institute of Industrial Science, the University of Tokyo, Tokyo, Japan

Yoshihiro Suda

Affiliation Institute of Industrial Science, the University of Tokyo, Tokyo, Japan

Toshinori Kato

kato@katobrain.com

Affiliation Department of Brain Environmental Research, KatoBrain Co., Ltd., Tokyo, Japan

Competing Interests

The present study was a joint study by two companies and one university. Katobrain Co., Ltd. provided brain measurement analysis technology, Central Nippon Expressway Co., Ltd. (NEXCO) provided road environment information, and Tokyo University provided a driving-simulator system. This does not alter the authors' adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: NO K. Yoshino K. Yamamoto HT SL KN YS TK. Performed the experiments: NO K. Yoshino SL K. Yamamoto. Analyzed the data: NO K. Yoshino. Contributed reagents/materials/analysis tools: NO K. Yoshino SL KN YS TK. Wrote the paper: NO K. Yoshino TK. Discussion on the results: NO KY K. Yamamoto HT SL TS KN YS TK.