PSY328H1 Chapter Notes - Chapter 3: Lie Detection, Confirmation Bias, Adaptation

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3 Oct 2018
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Lying and evolutionary adaptive trait which has made it hard to detect deception. The polygraph: the theory is that when lying your body experiences physiological arousal which should be. Flawed interoperation of suspects ver(cid:271)al"s a(cid:374) (cid:374)o(cid:374)ver(cid:271)al (cid:272)ues is fueled (cid:271)y (cid:272)o(cid:374)fir(cid:373)atio(cid:374) (cid:271)ias detected by polygraph. Innocent subjects should will react more strongly to the control questions, and that guilty suspects will respond more strongly to the relevant questions about the crime: places a to of emphasis on examiners ability. Weaknesses of polygraphing techniques: they are ethical rather than scientific. Lack of standardization: the questioning techniques invade the privacy of anyone being examined. An alternative polygraph-based technique: gkt: guilty knowledge test (gkt): is intended to detect whether or not someone knows facts only a criminal would know. The logic is that a guilty person will recognize scenes and events from the crime that an innocent person will not recognize a well-constructed.

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