Does maintaining eye contact actually facilitate lie detection?

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In two experiments, we tested the hypotheses that (a) the differences in nonverbal and verbal behaviour between liars and truth tellers will be greater when interviewees are instructed to maintain eye contact with the interviewer than when no instruction is given, and (b) instructing interviewees to maintain eye contact with the interviewer will facilitate deception detection. In Experiment 1, 80 mock suspects either told the truth or lied about a staged event and were or were not requested to maintain eye contact with the interviewer. The maintaining eye contact condition contained more cues to deceit than the control condition.

Source: “‘Look into my eyes’: can an instruction to maintain eye contact facilitate lie detection?” from Psychology, Crime & Law

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