Amemiya, Kaoru http://orcid.org/0000-0002-1139-782X
Morita, Tomoyo http://orcid.org/0000-0003-0916-205X
Hirose, Satoshi http://orcid.org/0000-0002-2532-2167
Ikegami, Tsuyoshi http://orcid.org/0000-0002-8430-8226
Hirashima, Masaya http://orcid.org/0000-0001-8571-8289
Naito, Eiichi http://orcid.org/0000-0002-9509-813X
Funding for this research was provided by:
Japan Society for the Promotion of Science (19H05723, 26870933)
Japan Society for the Promotion of Science (JP17H02143, 18K15355, JP17K01615)
Ministry of Internal Affairs and Communications
Article History
First Online: 2 April 2020
Compliance with ethical standards
: The protocol used for this study was approved by the ethics committee of the National Institute of Information and Communications Technology. We explained the details of the study to the participants before the start of the experiment. All participants provided written informed consent. In cases where blind participants could not provide their signatures, we obtained their oral informed consent and written informed consent signed by an experimenter or their guardians in their presence. The experiment was conducted in accordance with the principles of the Declaration of Helsinki (1975).
: All authors declare that they have no conflicts of interest.