About the Authors

Akari Asaba

Affiliation Companion Animal Research, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan

Shota Okabe

Affiliation Companion Animal Research, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan

Miho Nagasawa

Affiliation Companion Animal Research, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan

Masahiro Kato

Affiliation Kato Acoustics Consulting Office, Yokohama, Kanagawa, Japan

Nobuyoshi Koshida

Affiliation Division of Electronic and Information Engineering, Tokyo University of Agriculture and Technology, Tokyo, Japan

Takuya Osakada

Affiliation Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan

Kazutaka Mogi

Affiliation Companion Animal Research, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan

Takefumi Kikusui

kikusui@azabu-u.ac.jp

Affiliation Companion Animal Research, School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan

Competing Interests

The co-author Dr. Masahiro Kato is affiliated with Kato Acoustics Consulting Office. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: AA SO MN KM TK. Performed the experiments: AA SO. Analyzed the data: AA SO MN. Contributed reagents/materials/analysis tools: SO MK TO NK. Wrote the paper: AA TK.