Abstract
In recent years, a variety of human symbiotic robots has been developed. In many studies of the past, they have attempted to understand the speech and emotions of people. In this study, we focus on the interaction design that people understand robot mind and reply to the robot. For the design, we consider the psychological interaction utilizing baby talk. Here, when a robot has an appearance that can not be assumed to speak with baby talk, it is likely to feel uncomfortable by the negative adaptation gap. In this paper, we use a robot that has the appearance like a baby, to investigate the acceptable range of baby talk. Concretely, we report the result of the examination in which we created 49 videos of the robot having baby-like appearance using voice under 4 years old, and presented them in random order.
