About the Authors

Hironori Akechi

akechi@cogn.jp (HA); jari.hietanen@uta.fi (JKH)

Current address: Japan Society for the Promotion of Science (JSPS), Tokyo, Japan and Division of Information System Design, Tokyo Denki University, Saitama, Japan

Affiliation Department of Cognitive and Behavioral Science, University of Tokyo, Tokyo, Japan

Atsushi Senju

Affiliation Centre for Brain and Cognitive Development, Birkbeck, University of London, London, United Kingdom

Helen Uibo

Affiliation Institute of Psychology, University of Tartu, Tartu, Estonia

Yukiko Kikuchi

Current address: JSPS, Tokyo, Japan and College of Education, Ibaraki University, Ibaraki, Japan

Affiliation Department of Cognitive and Behavioral Science, University of Tokyo, Tokyo, Japan

Toshikazu Hasegawa

Affiliation Department of Cognitive and Behavioral Science, University of Tokyo, Tokyo, Japan

Jari K. Hietanen

akechi@cogn.jp (HA); jari.hietanen@uta.fi (JKH)

Affiliation Human Information Processing Laboratory, School of Social Sciences and Humanities, University of Tampere, Tampere, Finland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JKH AS. Performed the experiments: HA YK HU. Analyzed the data: HU HA. Contributed reagents/materials/analysis tools: TH JKH. Wrote the paper: HA JKH AS.