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Korean Psychological Journal of Culture and Social Issues

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Vol.12 No.2
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Detecting lies through suspect's nonverbal behaviors in the investigation scene

Korean Psychological Journal of Culture and Social Issues / Korean Psychological Journal of Culture and Social Issues, (P)1229-0661; (E)1229-0661
2006, v.12 no.2, pp.101-114



& (2006). Detecting lies through suspect's nonverbal behaviors in the investigation scene. Korean Psychological Journal of Culture and Social Issues, 12(2), 101-114.
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Abstract

This study was examined the effective nonverbal behavior cues of detecting suspects‘ lies in the investigation scene. In order to search the suspects who drank the alcohol liquor without a permission, 18 soldiers were interviewed. 8 solders had drunken alcohol and had lied when was asked(lie group). The other 10 soldiers hadn't drunken alcohol and had told the truth(truth group). The mean frequencies of nonverbal behaviors were compared lie group with truth group. The following behaviors were measured by frequency: vocal characteristics (high pitch of voice, speech hesitations, speech error, frequency of pauses, period of pauses, latency period), facial characteristics (gaze, smile, touching face, blinking, facial micro-expression), body movement (illustrators, hand and finger movement, leg and foot movement, head movement, trunk movement, shifting position). As results, this study found that deception cues were periods and frequencies of pause, micro-expression, head movements. The lie group had less periods and frequencies of pause, and more micro-expression, head movements than truth group. But, this study didn't found Othello's error cues.

keywords
거짓말 탐지, 비언어적 행동 단서, 사건 관련 질문 및 무관련 질문, detecting deceit, nonverbal behaviors.

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