Virtual humans with secrets: learning to detect verbal cues to deception

Authors:
H. Chad Lane;Mike Schneider;Stephen W. Michael;Justin S. Albrechtsen;Christian A. Meissner
Affiliations:
Institute for Creative Technologies, University of Southern California;Institute for Creative Technologies, University of Southern California;Department of Psychology, University of Texas at El Paso;Department of Psychology, University of Texas at El Paso;Department of Psychology, University of Texas at El Paso
Venue:
ITS'10 Proceedings of the 10th international conference on Intelligent Tutoring Systems - Volume Part II
Year:
2010

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Abstract

Virtual humans are animated, lifelike characters capable of free-speech and nonverbal interaction with human users In this paper, we describe the development of two virtual human characters for teaching the skill of deception detection An accompanying tutoring system provides solicited hints on what to ask during an interview and unsolicited feedback that identifies properties of truthful and deceptive statements uttered by the characters We present the results of an experiment comparing use of virtual humans with tutoring against a no-interaction (baseline) condition and a didactic condition The didactic group viewed a slide show consisting of recorded videos along with descriptions of properties of deception and truth-telling Results revealed that both groups significantly outperformed the no-interaction control group in a binary decision task to identify truth or deception in video statements No significant differences were found between the training conditions.