About the Authors

Yoichi Sawada

Current address: Faculty of Health and Welfare Science, Okayama Prefectural University, Soja, Japan

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

Yoshiyuki Nishio

nishiou@med.tohoku.ac.jp

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

Kyoko Suzuki

Affiliations Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University Graduate School of Medicine, Sendai, Japan, Department of Clinical Neuroscience, Yamagata University Graduate School of Medicine, Yamagata, Japan

Kazumi Hirayama

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

Atsushi Takeda

Affiliation Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan

Yoshiyuki Hosokai

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

Toshiyuki Ishioka

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

Yasuto Itoyama

Affiliation Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan

Shoki Takahashi

Affiliation Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Japan

Hiroshi Fukuda

Affiliation Department of Radiology and Nuclear Medicine, Institute of Development, Aging, and Cancer, Tohoku University, Sendai, Japan

Etsuro Mori

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

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YS YN KS EM. Performed the experiments: YS YN KS KH AT YH TI. Analyzed the data: YS YN. Contributed reagents/materials/analysis tools: YI ST HF EM. Wrote the paper: YS YN.