About the Authors

Mariska E. Kret

m.e.kret@uva.nl

Affiliations Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan, Department of Psychology, University of Amsterdam, Amsterdam, the Netherlands, Amsterdam Brain and Cognition (ABC) center, Amsterdam, the Netherlands

Masaki Tomonaga

Affiliation Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan

Tetsuro Matsuzawa

Affiliation Primate Research Institute, Kyoto University, Inuyama, Aichi, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MEK MT TM. Performed the experiments: MEK MT. Analyzed the data: MEK. Contributed reagents/materials/analysis tools: MEK. Contributed to the writing of the manuscript: MEK.