About the Authors

Yasuyuki Mamiya

Affiliation Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University School of Medicine, Sendai, Japan

Yoshiyuki Nishio

nishiou@med.tohoku.ac.jp

Affiliation Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University School of Medicine, Sendai, Japan

Hiroyuki Watanabe

Affiliation Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University School of Medicine, Sendai, Japan

Kayoko Yokoi

Affiliations Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University School of Medicine, Sendai, Japan, Department of Occupational Therapy, Yamagata Prefectural University of Health Sciences, Yamagata, Japan

Makoto Uchiyama

Affiliations Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University School of Medicine, Sendai, Japan, Department of Speech, Language and Hearing Sciences, Niigata University of Health and Welfare, Niigata, Japan

Toru Baba

Affiliation Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University School of Medicine, Sendai, Japan

Osamu Iizuka

Affiliation Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University School of Medicine, Sendai, Japan

Shigenori Kanno

Affiliation Department of Neurology, South Miyagi Medical Center, Ohgawara, Japan

Naoto Kamimura

Affiliation Department of Neuropsychiatry, Kochi Medical School, Nangoku, Japan

Hiroaki Kazui

Affiliation Department of Psychiatry, Osaka University School of Medicine, Suita, Japan

Mamoru Hashimoto

Affiliation Department of Neuropsychiatry, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan

Manabu Ikeda

Affiliation Department of Neuropsychiatry, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan

Chieko Takeshita

Affiliation Department of Rehabilitation Medicine, Akita Prefectural Center of Rehabilitation and Psychiatric Medicine, Daisen, Japan

Tatsuo Shimomura

Affiliation Department of Rehabilitation Medicine, Akita Prefectural Center of Rehabilitation and Psychiatric Medicine, Daisen, Japan

Etsuro Mori

Affiliation Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University School of Medicine, Sendai, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YM YN EM. Performed the experiments: YM YN HW CT TB OI SK NK HK MH MI TS. Analyzed the data: YM YN. Contributed reagents/materials/analysis tools: KY MU. Wrote the paper: YM YN EM.