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Use of “um” in the deceptive speech of a convicted murderer

Published online by Cambridge University Press:  07 April 2011

GINA VILLAR*
Affiliation:
University of Sydney and Charles Sturt University
JOANNE ARCIULI
Affiliation:
University of Sydney
DAVID MALLARD
Affiliation:
Charles Sturt University
*
ADDRESS FOR CORRESPONDENCE Gina Villar, Faculty of Health Sciences, University of Sydney, 75 East Street, Lidcombe, NSW 2141, Australia. E-mail: gvil2424@uni.sydney.edu.au

Abstract

Previous studies have demonstrated a link between language behaviors and deception; however, questions remain about the role of specific linguistic cues, especially in real-life high-stakes lies. This study investigated use of the so-called filler, “um,” in externally verifiable truthful versus deceptive speech of a convicted murderer. The data revealed significantly fewer instances of “um” in deceptive speech. These results are in line with our recent study of “um” in laboratory elicited low-stakes lies. Rather than constituting a filled pause or speech disfluency, “um” may have a lexical status similar to other English words and may be under the strategic control of the speaker. In an attempt to successfully deceive, humans may alter their speech, perhaps in order to avoid certain language behaviors that they think might give them away.

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Articles
Copyright
Copyright © Cambridge University Press 2011

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