Funding for this research was provided by:
scholarship donation from the DENSEI COMTEC Inc.
the japan society for the promotion of science (16K01723)
Article History
Received: 29 July 2021
Accepted: 28 November 2021
First Online: 21 January 2022
Declarations
:
: The present study was conducted in collaboration between the Densei Communication Inc. and Hokkaido University with the sponsorship and supply of the head-mounted bright light device used in the present study from the DENSEI COMTEC Inc. There are no conflicts of interest associated with this publication.
: This study was approved by the ethics committee of the Hokkaido University Graduate School of Education (no.17–47) and was conducted according to the Declaration of Helsinki.
: All subjects provided their written informed consent.