Influence of emotional expression of real humanoid robot to human decision-making

Abstract

Conventional studies have suggested that emotion representation of a robot affects human action decision in human-robot communication. The influence of emotional expression of the robot to the human decision-making can be represented by a simple fuzzy inference model. However, they often use emotion expression by mimicking human facial expression on a robot, however, emotion expression by no facial expression but the motion of limbs, LEDs, and audios of a humanoid robot has not been studied for the evaluation of human action decision effect. This study proposes an experiment design based on a finite iterated prisoner's dilemma game with a humanoid robot that shows multimodal emotion expression during the game in order to investigate the effect of the emotion expression of the robot on cooperative and/or selfish action decision making of the human individuals. The experimental results are analyzed to show the influence of the decision making and impression on the robot of the people according to the emotional expression of the humanoid robot.