PSY 300 Chapter 4: Chapter 4- Feb 4 2020
11 Apr 2020
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The polygraph technique: a device for recording an individual"s autonomic nervous system responses marston, 1917. Physiological measures to detect deception: ex/ the chinese forced suspects to chew on dry rice powder and then spit it out. Polygraph relies on the same underlying principle: deception is associated with physiological change. In canada, the police often use them to help in their criminal investigations: the police may ask a suspect to take a polygraph test as a means to resolve the case. If the suspect fails the polygraph test, that person may be pressured to confess, thereby giving the police incriminating evidence: might ask alleged victims to take one to see if crime occurred (rare) Insurance companies may request a polygraph test to verify the claims of the insured. In us, to assess and monitor sexual offenders on probation: polygraph disclosure tests: polygraph tests that are used to uncover information about an offender"s past behaviour.
