(Amphithéâtre)

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  Burgoon, Judee K. (Human Communication Research, Center for the Management of Information, University of Arizona, Tucson)
  Qin, Tiantian (Department of Management Information Systems, University of Arizona,Tucson)
  Dunbar, Norah E. Department of Communication Studies, Long Beach
  Afifi, Walid A. (Department of Communication, Pennsylvania State University)
  White, Cindy H. (Department of Communication, University of Colorado, Boulder)
  Buller, David B. Klein Buendel, Inc., Denver, Colorado

Nonverbal and Verbal Indicators of Truth and Deceit in Interpersonal Interactions

In interpersonal interactions, people must implicitly assess whether the messages of others are to be trusted. Research on reliable indicators of deception has (1) been primarily noninteractive, (2) looked at verbal or nonverbal cues independently, (3) not considered temporal changes, and (4) not considered how deceivers adapt their displays in response to interlocutor actions. In the experiment to be reported, participants conduct interviews during which interviewees alternate between giving deceptive and truthful responses across 12 questions. Numerous kinesic and proxemic gestures are coded by trained raters, verbal indicators are machine coded, and temporal and adaptation patterns are analyzed. Results show differences within and between interviewees in nonverbal immediacy, number of illustrator and adaptor gestures, nonverbal and verbal involvement, and adherence to Gricean principles for cooperative discourse. Convergence between deceptive and truthful patterns over time reveals how communicators parlay initial interaction diffi culties into successful performances through integration of nonverbal and verbal actions. Reciprocal versus compensatory responses to interviewer involvement patterns also reveal responsivity to the interlocutor. Results cast doubts on claims derived from noninteractive experiments, results from experiments utilizing very brief behavioral samples, and experiments that examine limited subsets of nonverbal or verbal behaviors.