Psychology 2032A/B Chapter Notes - Chapter 4: Ground Truth, Mental Disorder, Factitious Disorder

• School: Western University
• Department: Psychology
• Course: Psychology 2032A/B
• Professor: John Campbell

Document Summary

Polygraph technique: device for recording an individual"s autonomic nervous responses. Used fo(cid:396) i(cid:374)(cid:272)(cid:396)i(cid:373)i(cid:374)ati(cid:374)g e(cid:448)ide(cid:374)(cid:272)e o(cid:396) fo(cid:396) p(cid:396)essu(cid:396)i(cid:374)g a suspe(cid:272)t"s (cid:272)o(cid:374)fessio(cid:374) Polygraph disclosure test: dis(cid:272)o(cid:448)e(cid:396) a(cid:374) offe(cid:374)de(cid:396)"s past (cid:271)eha(cid:448)iou(cid:396) Comparison question test (cqt): irrelevant questions to the crime, questions about the e(cid:448)e(cid:374)ts of the (cid:272)(cid:396)i(cid:373)e, (cid:395)uestio(cid:374)s a(cid:271)out the i(cid:374)di(cid:448)idual"s past histo(cid:396)y p(cid:396)io(cid:396) to the (cid:272)(cid:396)i(cid:373)e (which are supposed to generate emotion) Cons: classifies innocent ppl as guilty false/positive negative rate. G(cid:396)eat at dete(cid:272)ti(cid:374)g guilt (cid:271)ut is (cid:374)ot good at dete(cid:396)(cid:373)i(cid:374)i(cid:374)g a suspe(cid:272)t"s innocence. Cons: criminals may not remember the details of their crimes. Classifies guilty ppl as innocent false/negative rate. Polygraphs were first submitted as evidence in us vs. frye case: Brain-based deception research: recording electricals patterns related to stimulus these methods work in laboratory settings but has not been used extensively in forensic settings. Erps: event-related potentials: ex: a suspect should respond to crime-related events or info, this is a measure resistant to manipulation **