PSY 344 Lecture Notes - Lecture 25: Psychopathy, Microexpression, Ground Truth
Document Summary
Detecting truth and lies (polygraphs. : detecting truth and lie. Polygraphs- one of most common methods for determine lies. Polygraphs detect lies by detecting reparation, blood pressure, skin response, heart rate, movementphysiological response. Not detecting if telling lie, detecting if physiological changes in body. Not a lot of standardization of administering polygraph. This is one of the big problems: administering the polygraph- Fi(cid:396)st thi(cid:374)g do(cid:374)e is sa(cid:455)i(cid:374)g, (cid:862)if (cid:455)ou lie, this (cid:373)a(cid:272)hi(cid:374)e (cid:449)ill k(cid:374)o(cid:449). (cid:863) Control question test- requires the administer give two types of test. First type- relative questions about the crime. Second type- (cid:862)(cid:272)o(cid:374)t(cid:396)ol t(cid:455)pe(cid:863) a(cid:271)out (cid:272)o(cid:373)(cid:373)o(cid:374) (cid:373)isdeeds. E(cid:454): (cid:862)ha(cid:448)e (cid:455)ou e(cid:448)e(cid:396) stole(cid:374) anything prior to the age of (cid:1006)(cid:1005)? (cid:863) Considered control questions in which most people would answer yes to. Assumes that innocent people will lie to common misdeed questions. They will get nervous, and get a baseline to physiological spike. Point is- innocent person nervous about misdeed questions and not nervous about relevant questions.
