PSYC 3310 Chapter Notes - Chapter 3: John B. Larson, Tachycardia, Lie Detection
15 Nov 2016
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Document Summary
From an evolutionary perspective, lying is adaptive (it serves a useful function that promotes survival. Machiavellian intelligence hypothesis: a great leap forward in human intelligence was triggered by the need for humans to develop the essential social skills of manipulation, pretence, and deception. Interrogators are trained to read verbal and nonverbal behavior as a means of determining whether or not a suspect is lying: the behavioral cues that they are taught are flawed indicators of deception. Liar"s stereotype false behavioral indicators of lying including crossing legs, shifting and fidgeting, grooming gestures, and avoiding eye contact. Dangerous decisions theory (ddt) researchers outline how decision makers" (investigators, judges, and jurors) initial judgments of credibility, often driven by irrational cues, can potentially bias subsequent information heard. Lie detection devices do not detect lies per se, but rather physiological reactions that are believed to be indicative of lying.
