Emotion Model for Life-Like Agent and Its Evaluation

This paper proposes an emotion model for life-like agents with emotions and motivations. This model consists of reactive and deliberative mechanisms. The former generates low-level instantaneous responses to external stimuli that come from the real world and virtual worlds. The latter mechanism especially focuses on emotions. A basic idea of the model comes from a psychological theory, called the cognitive appraisal theory. In the model, cognitive and emotional processes interact with each other based on the theory. Amultimodule architecture is employed in order to carry out the interactions. The model also has a learning mechanism to diversify behavioral patterns. These features are effective in giving users the illusion of life. We applied the proposed model to characters in a virtual world and show the results obtained from three experiments with users.

Authors

• Hirohide Ushida Yuji Hirayama

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