Meng, Xianwei http://orcid.org/0000-0002-7873-7518
Ishii, Tatsunori http://orcid.org/0000-0002-8444-4455
Sugimoto, Kairi http://orcid.org/0000-0002-3488-177X
Itakura, Shoji
Watanabe, Katsumi http://orcid.org/0000-0003-1282-9994
Funding for this research was provided by:
Japan Society for the Promotion of Science (18F18999, 17H00753, 17H06344, 19K14370, 15H01846, 20K20156)
Core Research for Evolutional Science and Technology (JPMJCR14E4)
Article History
Received: 30 August 2020
Accepted: 29 March 2021
First Online: 16 April 2021
Declarations
:
: The authors certify that they have NO affiliations with or involvement in any organisation or entity with any financial interest, or non-financial interest in the subject matter or materials discussed in this manuscript.
: The study was approved by the ethics committee of Waseda University and conducted in accordance with the American Psychological Association’s ethical standards (2017) and the Declaration of Helsinki (2001). Written informed consent was obtained from the children’s caregivers before the experiment.