Affective motion for pleasure-unpleasure expression in behavior of robots

Existing human-robot interaction generates the robot's emotion based on the information acquired from an interaction. In this paper, we propose generating a robot's feelings from external environmental information(temperature and, humidity) which is completely unrelated to the interaction. Additionally, we found a strong correlation between a robot's forward-bending angle and the pleasure-unpleasure feelings communicated by it, for about 60 percent of the subjects from the experimental results of our previous research. Therefore, we investigated whether the impression of “being harmonized” could be given to subjects when expressing the robot's feelings by a comfort index. As a result, the group that shows a strong correlation between a robot's forward-bending angle and pleasure-unpleasure feelings communicated by it could be given to subjects impression of “being harmonized”.