About the Authors

Yasushi Kyutoku

qworkdog@jichi.ac.jp (YK); dan@jichi.ac.jp (ID)

Affiliation Functional Brain Science Laboratory, Center for Development of Advanced Medical Technology, Jichi Medical University, Tochigi, Japan

Ryoko Tada

Affiliation Department of Marketing and Research, Cross Marketing Inc. Tokyo, Japan

Takahiko Umeyama

Affiliation Department of Marketing and Research, Cross Marketing Inc. Tokyo, Japan

Kenji Harada

Affiliation Department of Marketing and Research, Cross Marketing Inc. Tokyo, Japan

Senichiro Kikuchi

Affiliation Department of Psychiatry, Jichi Medical University, Tochigi, Japan

Eiju Watanabe

Affiliation Department of Neurosurgery, Jichi Medical University, Tochigi, Japan

Angela Liegey-Dougall

Affiliation Department of Psychology, College of Science, University of Texas, Arlington, Texas, United States of America

Ippeita Dan

qworkdog@jichi.ac.jp (YK); dan@jichi.ac.jp (ID)

Affiliation Functional Brain Science Laboratory, Center for Development of Advanced Medical Technology, Jichi Medical University, Tochigi, Japan

Competing Interests

Three authors (Dr. Tada, Dr. Umeyama, Dr. Harada) are employed by a commercial company, Cross Marketing Inc. All other authors: no potential conflicts of interest relating to employment, consultancy, patents, products in development or marketed products. 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: YK RT ALD ID. Performed the experiments: RT TU KH. Analyzed the data: YK KH ID. Contributed reagents/materials/analysis tools: ALD YK ID RT TU EW SK. Wrote the paper: YK ID.