Funding for this research was provided by:
Ritsumeikan Inamori Philosophy Research Center
Received: 16 June 2020
Accepted: 28 March 2021
First Online: 13 May 2021
: This study was approved by the ethics and safety committees of the National Institute of Information and Communications Technology. All participants submitted a written consent form before taking part in the experiments, in accordance with the principles stated in the Declaration of Helsinki.
: Not applicable.
: No potential conflict of interest was reported by the authors.