A step toward irrationality: using emotion to change belief

ABSTRACT

Emotions have a powerful impact on behavior and beliefs. The goal of our research is to create general computational models of this interplay of emotion, cognition and behavior to inform the design of virtual humans. Here, we address an aspect of emotional behavior that has been studied extensively in the psychological literature but largely ignored by computational approaches, emotion-focused coping. Rather than motivating external action, emotion-focused coping strategies alter beliefs in response to strong emotions. For example an individual may alter beliefs about the importance of a goal that is being threatened, thereby reducing their distress. We present a preliminary model of emotion-focused coping and discuss how coping processes, in general, can be coupled to emotions and behavior. The approach is illustrated within a virtual reality training environment where the models are used to create virtual human characters in high-stress social situations.

REFERENCES

• 1: Justine Cassell , Hannes Högni Vilhjálmsson , Timothy Bickmore, BEAT: the Behavior Expression Animation Toolkit, Proceedings of the 28th annual conference on Computer graphics and interactive techniques, p.477-486, August 2001 [doi>10.1145/383259.383315]
• 2: Fleischman, M. and Hovy, E. Emotional variation in speech-based natural language generation. In Proceedings of the International Natural Language Generation Conference. Arden House, NY. 2002.
• 3: Frijda, N. 1987. Emotion, cognitive structure, and action tendency. Cognition and Emotion, 1, 115--143.
• 4: Jonathan Gratch, Émile: Marshalling passions in training and education, Proceedings of the fourth international conference on Autonomous agents, p.325-332, June 03-07, 2000, Barcelona, Spain [doi>10.1145/336595.337516]
• 5: Jonathan Gratch , Stacy Marsella, Tears and fears: modeling emotions and emotional behaviors in synthetic agents, Proceedings of the fifth international conference on Autonomous agents, p.278-285, May 2001, Montreal, Quebec, Canada [doi>10.1145/375735.376309]
• 6: Eduard H. Hovy, Generating Natural Language under Pragmatic Constraints, Lawrence Erlbaum Associates, Inc., Mahwah, NJ, 1988
• 7: Lazarus, R.S. Emotion and Adaptation. Oxford Press. 1991.
• 8: Stacy C. Marsella , W. Lewis Johnson , Catherine LaBore, Interactive pedagogical drama, Proceedings of the fourth international conference on Autonomous agents, p.301-308, June 03-07, 2000, Barcelona, Spain [doi>10.1145/336595.337507]
• 9: Marsella, S., Gratch, J. & Rickel, J. The Effect of Affect: Modeling the Impact of Emotional State on the Behavior of Interactive Virtual Humans. In Agents 2001 Workshop on Representing, Annotating, and Evaluating Non-Verbal and Verbal Communicative Acts to Achieve Contextual Embodied Agents, 2001.
• 10: Neal Reilly, W.S., 1996. Believable Social and Emotional Agents. Ph.D Thesis CMU-CS-96-138. Carnegie Mellon Univ.
• 11: Ortony A., Clore, G. L., & Collins, A. 1988. The Cognitive Structure of Emotions. Cambridge University Press.
• 12: Parkes, K.R. Locus of control, cognitive appraisal and coping in stressful episodes. Journal of Personality and Social Psychology, 46, 1984, Pp. 655--668.
• 13: Judea Pearl, Reasoning with cause and effect, AI Magazine, v.23 n.1, p.95-111, March 2002
• 14: Isabella Poggi , Catherine Pelachaud, Emotional meaning and expression in animated faces, Affective interactions: towards a new generation of computer interfaces, Springer-Verlag New York, Inc., New York, NY, 2001
• 15: Rickel, J. & Johnson, L. 1999. Animated agents for procedural training in virtual reality: perception, cognition, and motor control. Applied Artificial Intelligence, v13:343--382.
• 16: Scherer, K. R. 1984. On the nature and function of emotion: A component process approach. In K.R. Scherer & P. Ekman (Eds.), Approaches to emotion, pp 293--317.
• 17: Smith, C.A. & Lazarus, R.S. Emotion and Adaptation. In Pervin (ed), Handbook of Personality: theory & research, Guilford Press, NY, 1990, 609--637.
• 18: R. Hill , J. Gratch , W. L. Johnson , C. Kyriakakis , C. LaBore , R. Lindheim , S. Marsella , D. Miraglia , B. Moore , J. Morie , J. Rickel , M. Thiébaux , L. Tuch , R. Whitney , J. Douglas , W. Swartout, Toward the holodeck: integrating graphics, sound, character and story, Proceedings of the fifth international conference on Autonomous agents, p.409-416, May 2001, Montreal, Quebec, Canada [doi>10.1145/375735.376390]
• 19: Thagard, P. Why wasn't O. J. convicted: emotional coherence in legal inference. Cognition and Emotion (forthcoming).
• 20: David Traum , Jeff Rickel, Embodied agents for multi-party dialogue in immersive virtual worlds, Proceedings of the first international joint conference on Autonomous agents and multiagent systems: part 2, July 15-19, 2002, Bologna, Italy [doi>10.1145/544862.544922]
• 21: Wells, A., and Matthews, G. Attention and emotion: a clinical perspective. Lawrence Erlbaum, NJ, 1994.

INDEX TERMS

Primary Classification:
  I. Computing Methodologies
  I.2 ARTIFICIAL INTELLIGENCE

General Terms:
Algorithms, Design, Human Factors

Keywords:
believability, cognitive modeling, coping strategies, emotion