A mutual effect model of desires and emotions in emotion for robots with growth function

In this paper, we propose an emotion generation model for robots that considers the mutual effects of desires and emotions to enable generation of complex emotions like creature. Robots of conventional model had a problem that these robots are unable to express complex emotions like creature. This problem can lead to indifference in many people. Hence, to solve this problem, we attempt to realize the mutual effects of desires and emotions to robots in the proposed model. In the proposed model, the effects are expressed using the internal-states of a robot, such as physiological factors. By considering these effects, the proposed model can generate complex emotions like creature. These emotions are influenced by previously expressed emotions, the present state, and present desires of the robot. In addition, the proposed model distinguishes emotions from feelings using characteristics of emotions and feelings. The emotions of the proposed model are based on M. Lewis's study that focused on the development of emotions[1]. Feelings in the proposed model are stored as the internal-states of the robot. In this paper, we perform simulations with the proposed model to verify that it expresses complex emotions like creature. Our simulation results confirmed that the proposed model can express more complex and realistic emotions than those expressed by conventional models.