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Clues that suggest people are lying may be deceptive, study shows

Researcher Jia Loy, from the University of Edinburgh, created a computerised two-player game in which 24 pairs of players hunted for treasure. Players were free to lie at will.

Researchers coded more than 1100 utterances produced by speakers against 19 potential cues to lying -- such as pauses in speech, changes in speech rate, shifts in eye gaze and eyebrow movements.

The cues were analysed to see which ones listeners identified, and which cues were more likely to be produced when telling an untruth.

The team found listeners were efficient at identifying these common signs.

Listeners make judgements on whether something is true within a few hundred milliseconds of encountering a cue.

However, they found that the common cues associated with lying were more likely to be used if the speaker is telling the truth.

Cues to Lying May be Deceptive: Speaker and Listener Behaviour in an Interactive Game of Deception. Journal of Cognition, 2018; 1 (1): 42 DOI: 10.5334/joc.46

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