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An Emergent Model of Emotion: Integrating Cognitive Behavior and Emotion in Agent Systems

This paper explores an emergent model of emotion based on cognitive behavior, building on existing emotion models inspired by appraisal theory. It highlights the limitations of traditional models in connecting lower-level and higher-level functionalities. By introducing the 'PSI' model formulated by Dietrich Dörner as a framework for emotional modulation, perception, and action selection, the study emphasizes how emotions can arise from complex interactions with the environment. The paper discusses the mechanisms of modulators and built-in motivators in agents, leading to enhanced emotional expressions and behaviors, exemplified through an implementation in The Island Game.

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An Emergent Model of Emotion: Integrating Cognitive Behavior and Emotion in Agent Systems

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  1. Emergent Model of Emotion Mei Yii Lim, Ruth Aylett, Christian Martyn Jones Heriot-Watt University

  2. Existing Emotion Models • Inspired by appraisal theory • Focus on agent’s cognitive behavior • Most of these models • simulate a limited picture of the links between lower-level and higher-level functionalities • Trigger expressions according to one emotion

  3. High-cognitive level models • OCC taxonomy – key reference in the domain of ECA • OZ Project • Affective Reasoner • VICTEC, etc • Appraisal Model by Scherer

  4. Low-level models • Cathexis model by Velásquez • Cañamero • etc.

  5. An Emergent Emotion Model • ‘PSI’ model of emotion, by psychologist Dietrich Dörner • Framework for agents • Emotional modulation, perception, action-selection, planning and memory access • Integrated level-bridging model of emotion

  6. Continued … • Emotions emerge from modulation of information processing and action selection • Become apparent when agents reflect their interaction with the environment

  7. Modulators • Each modulators lie within a range of intensity • Resolution level • Selection threshold • Activation • Rate of updating

  8. Built-in motivators • Together with the modulators produce complex behavior • Level of competence • Knowledge • Urgency of motives • Importance of motive • Uncertainty level

  9. Internal Structure of ‘PSI’

  10. Possible advantages • Adaptive agent • Reflect mixture of emotions • For example, gradual change of emotional expression • More colour and variation to the type of emotions that can be experienced

  11. Sample Implementation • The Island Game

  12. Questions???

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