Funding for this research was provided by:
ERATO Ishiguro Symbiotic Human-Robot Interaction Project
Japan Society for the Promotion of Science (25240042)
Article History
Received: 8 December 2016
Accepted: 17 October 2017
First Online: 6 November 2017
Compliance with ethical standards
:
: This research was conducted in compliance with the standards and regulations of our company’s ethical review board, which requires each experiment to be subject to a review and approval procedure according to strict ethical guidelines.