Emotional Expression in Virtual Agents Through Body Language

  • Vishal Nayak
  • Matthew Turk
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3804)


Virtual agents are used to interact with humans in a myriad of applications. However, the agents often lack the believability necessary to maximize their effectiveness. These agents, or characters, lack personality and emotions, and therefore the capacity to emotionally connect and interact with the human. This deficiency prevents the viewer from identifying with the characters on a personal level. This research explores the possibility of automating the expression of a character’s mental state through its body language. Using a system that animates a character procedurally, we provide tools to modify the character’s body movements in real-time, so that they reflect the character’s mood, personality, interest, bodily pain, and emotions, all of which make up the current mental state of the character.


Facial Expression Emotional Expression Body Language Virtual Agent Anger Level 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Vishal Nayak
    • 1
  • Matthew Turk
    • 1
    • 2
  1. 1.Media Arts and Technology Program 
  2. 2.Computer Science DepartmentUniversity of CaliforniaSanta BarbaraUSA

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