The accessibility and flexibility of a computer program is a phenomenal
asset to the world of professional training. Virtual humans
provide students with a unique opportunity, the ability to perform complex,
uncomfortable, or critical tasks with zero potential threat to human
beings. Medical educators have turned to virtual humans for use
with training systems dealing with social interactions that are situation
dependent and often difficult to reproduce in reality. These situations
have included patient interviewing skills and techniques [7], routine
patient surveillance [6], and even prostate examinations [22]. Particularly
in the realm of medical virtual reality, it is important that these
agents are able to accurately portray human characteristics and behaviors.