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Tham khảo tài liệu 'who needs emotions the brain meets the robot - fellous & arbib part 16', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 284 robots Open stance anger accepting tired High arousal Negative valence arousal sorro surprise happy disgust ster n Positive valence Figure 10.2. This diagram illustrates where the basis postures are located in Kismet s three-dimensional affect space. The dimensions correspond to arousal high or low valence good or bad and stance advance or withdraw . This space is used to generate Kismet s facial expressions based on the robot s overall affective assessment of the current situation. A sampling of where specific emotion categories map onto this space is shown as well. unhappy Closed stance Low relax. However as valence decreases the brows furrow the jaw closes and the lips turn downward. Along the arousal dimension the ears perk the eyes widen and the mouth opens as arousal increases. Along the stance dimension the robot leans toward increasing or away from decreasing the stimulus. The expressions become more intense as the affect state moves to more extreme values in the affect space. Kismet s face functions as a window by which a person can view the robot s underlying affective state. This transparency plays an important role in providing the human with the necessary feedback to understand and predict the robot s behavior when coupled with biologically inspired emotive responses. ARCHITECTURAL OVERVIEW Inspired by models of intelligence in natural systems the design of our architecture features both a cognitive system and an emotive system see Fig. 10.3 . The two operate in parallel and are deeply intertwined to foster appropriate adaptive functioning of the robot in the environment as it interacts with people. robot emotion 285 Figure 10.3. An architectural overview showing the tight integration of the cognitive system light gray the emotive system white and the motor system. The cognitive system is comprised of perception attention drives and behavior systems. The emotive system is composed of affective releasers appraisals elicitors and gateway processes .
