PSYCH 3CC3 Lecture Notes - Lecture 3: Lie Detection, Linguistic Inquiry, Cognitive Load
21 Apr 2020
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Possible shortcomings: several earlier studies found no evidence that experts" better at lie detection than students, forensic relevance unclear most forensic lies not about currently felt emotion. Whelan, wagstaff & wheatcroft (2014: 2 successful raters viewed 9 videos of people pleading for help in locating missing relatives, 5 honest, 5 deceptive. Indicated which cues using to detect deceit: deceptive appeals, fake emotion, lack of emotion, distancing, negative personal reaction. Implausibility: honest appeals, genuine sadness emotion, genuine/heartfelt, containing emotion, sympathetic personal reaction. Facial/body cues to deception: avoiding eye contact, more smiling and laughter, higher rate of eye blinking, nervous fidgeting, more illustrative gestures, more movement of legs, feets, hands, more body, head movements, more shrugging. Depaulo et al (2003) list of cues to deception. Working cues to deception: liars less forthcoming, liars tell less compelling stories, liars = more negative impression, liars more tense, fewer imperfections, unusual content. Low verbal immediacy: past tense, passive voice.
