About the Authors

Masaya Tayama

Affiliation Department of Neuropsychiatry, Sapporo Medical University School of Medicine, Sapporo, Japan

Masaru Tateno

tatema@sapmed.ac.jp

Affiliation Department of Neuropsychiatry, Sapporo Medical University School of Medicine, Sapporo, Japan

Tae Woo Park

Affiliation Department of Psychiatry, Boston University School of Medicine and Veterans Affairs Boston Healthcare System, Boston, Massachusetts, United States of America

Wataru Ukai

Affiliation Department of Neuropsychiatry, Sapporo Medical University School of Medicine, Sapporo, Japan

Eri Hashimoto

Affiliation Department of Neuropsychiatry, Sapporo Medical University School of Medicine, Sapporo, Japan

Toshikazu Saito

Affiliation Department of Neuropsychiatry, Sapporo Medical University School of Medicine, Sapporo, Japan

Competing Interests

All authors declare that they have no competing interests.

Author Contributions

Conceived and designed the experiments: M. Tayama M. Tateno. Performed the experiments: M. Tayama. Analyzed the data: M. Tayama M. Tateno. Contributed reagents/materials/analysis tools: M. Tayama M. Tateno. Wrote the paper: M. Tayama M. Tateno. Original proposer: M. Tayama. Designed and conceptualized the study: M. Tayama M. Tateno. Acquisition of data: M. Tayama. Analyzed and interpreted the data: M. Tayama M. Tateno WU EH. Drafted and revised the manuscript: M. Tayama TWP WU EH TS. Recruitment of the subjects: M. Tateno. Drafted and revised the manuscript for intellectual content: M. Tateno. Overall study supervision and coordination: TS.