Published on in Vol 6, No 11 (2019): November
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/15747, first published
.
1 Research Center for Child Mental Development, Chiba University, Chiba, Japan
2 Japan Society for the Promotion of Science, Chiba, Japan
3 Department of Cognitive Behavioral Physiology, Graduate School of Medicine, Chiba University, Chiba, Japan