Equipping a Lifelike Animated Agent with a Mind

This paper presents a computational mind model for lifelike animated agents. It consists of a motivational system and an emotional system. The motivational system guides an agent's behaviour by generating goals. The emotional system exerts further control over the agent's behaviour by regulating and modulating the way that behaviour is undertaken. The mind model is embedded in a layered hierarchical agent architecture that provides a framework and flexible way of modelling these system's influence on each other, and ultimately on the behaviour of lifelike agents. The mind model together with the agent architecture is implemented using a logical formalism, i.e. the Event Calculus. We have followed this approach to develop and control an animated lifelike agent operating in a virtual campus.

[1]  Andrew Ortony,et al.  The Cognitive Structure of Emotions , 1988 .

[2]  B. Skinner,et al.  Principles of Behavior , 1944 .

[3]  Dolores Cañamero,et al.  Modeling motivations and emotions as a basis for intelligent behavior , 1997, AGENTS '97.

[4]  Joseph Bates,et al.  The role of emotion in believable agents , 1994, CACM.

[5]  Clark Elliott,et al.  Story-morphing in the affective reasoning paradigm: generating stories semi-automatically for use with “emotionally intelligent” multimedia agents , 1998, AGENTS '98.

[6]  A. Damasio.  Descartes' error: emotion, reason, and the human brain. avon books , 1994 .

[7]  W. S. Reilly,et al.  Believable Social and Emotional Agents. , 1996 .

[8]  Thomas Rist,et al.  Integrating Models of Personality and Emotions into Lifelike Characters , 1999, IWAI.

[9]  P. Ekman,et al.  Approaches To Emotion , 1985 .

[10]  F. C. Clark.  The effect of deprivation and frequency of reinforcement on variable-interval responding. , 1958, Journal of the experimental analysis of behavior.

[11]  Ryohei Nakatsu,et al.  Life-like communication agent-emotion sensing character "MIC" and feeling session character "MUSE" , 1996, Proceedings of the Third IEEE International Conference on Multimedia Computing and Systems.

[12]  Liming Chen,et al.  A logical approach to high-level agent control , 2001, AGENTS '01.

[13]  Ira J. Roseman,et al.  Appraisals of emotion-eliciting events: Testing a theory of discrete emotions. , 1990 .

[14]  Bruce Blumberg,et al.  The Art and Science of Synthetic Character Design , 1999 .

[15]  Joseph E LeDoux.  The Emotional Brain: The Mysterious Underpinnings of Emotional Life , 1996 .

[16]  A. Maslow.  Motivation and Personality , 1954 .

[17]  M. Minsky.  The Society of Mind , 1986 .