2011 年 26 巻 5 号 p. 571-579
In this study, we bring the haptic technology into the online negotiation system to improve the method of conveying nonverbal information. In this system, subjects can convey the nonverbal information by changing the ball's size as well as the force feedback. We conducted two experiments and compared them to verify the effect that the haptic interaction brings about. Results from the experiments implied that online negotiation involving haptic interaction can increase the sense of presence and is also helpful for expressing one's emotions, which play major role in online negotiations.