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Invited article: Face, voice, and body in detecting deceit

Ekman, Paul
O'Sullivan, Maureen
Friesen, Wallace V.
Published in Journal of Nonverbal Behavior. 1991, vol. 15, no. 2, p. 125-135
Abstract Studies based on mean accuracy of a group of subjects suggest that most observers do no better than chance in detecting the lies of others. We argue that a case-by-case methodology, like that used in polygraphy studies may be more useful. Three behavioral measures (two kinds of smiles and pitch) were used to make predictions about the lying or truthfulness of each of 31 subjects. A case-by-case analysis of the hits and misses achieved in this way yielded an over-all accuracy of 86%. The effect on lie detection accuracy of individual differences in the use and control of different behavioral channels is discussed.
Keywords BodyDeceitFaceVoice
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Article (Published version) (584 Kb) - public document Free access
Research group Affective sciences
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EKMAN, Paul et al. Invited article: Face, voice, and body in detecting deceit. In: Journal of Nonverbal Behavior, 1991, vol. 15, n° 2, p. 125-135. doi: 10.1007/BF00998267 https://archive-ouverte.unige.ch/unige:101979

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Deposited on : 2018-02-08

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