Kazunori Terada

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Internal (neuronal) representations in the brain are modified by our experiences, and this phenomenon is not unique to sensory and motor systems. Here, we show that different impressions obtained through social interaction with a variety of agents uniquely modulate activity of dorsal and ventral pathways of the brain network that mediates human social(More)
Vision based analysis of human action is a fundamental issue for a robot to interact intelligently with a human. We present a technique for 3D human head tracking using stereo camera. We apply the particle filter algorithm to the problem of head tracking in a sequence of depth map received from a stereo camera. Posterior distribution of human head pose is(More)
An artifact's behavior must be easily construed and interpreted as meaningful signals in a social or working context. In order to design such an artifact's behavior, we could exploit human psychological functions - theory of mind (ToM) - the ability to interpret other people's behavior in terms of intentional causal mental states such as beliefs, desires(More)
An agent must acquire internal representation appropriate for its task, environment, sensors. As a learning algorithm, reinforcement learning is often utilized to acquire the relation between sensory input and action. Learning agents in the real world using visual sensors is often confronted with critical problem how to build necessary and su cient state(More)
We describe attempts to have robots behave as embodied knowledge media that will permit knowledge to be communicated through embodied interactions in the real world. The key issue here is to give robots the ability to associate interactions with information content while interacting with a communication partner. Toward this end, we present two contributions(More)
In the present study, we investigated whether a robot is able to deceive a human by producing a behavior against him/her prediction. A feeling of being deceived by a robot would be a strong indicator that the human treat the robot as an intentional entity. We conducted a psychological experiment in which a subject played Darumasan ga Koronda, a Japanese(More)
Although product recommendation virtual agents (PRVAs) are used in a large number of online shopping websites, the optimal types of agents in this context remain unclear. In the present study, we tested whether agent appearance affects people's buying motivations and analyzed the key factors in persuading people to buy products. The experimental results(More)