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Polygraph & Hypnosis -...

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Lie detection, hypnosis, and profiling
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Ancient Hindus – spit rice on a leaf, if dry, lying Bedouins of Arabia – lick hot iron, if tongue  burned, lying Salem witch trials – throw in water, if drown,  innocent; if don’t drown, guilty so executed (no win  situation)
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Polygraph Frye v US (1923) James Frye wanted to allow  polygraph in because it showed his innocence Disallowed, “the thing from which the deduction is  made must be sufficiently established to have  gained general acceptance in the particular field in  which it belongs”
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Polygraph to measure pulse, blood pressure, and  respiration change OSU example R/I procedure: relevant/irrelevant John Reid, Control Question test- “have you ever  told a lie?” to get innocent to lie too/ compare to  relevant/ c>r, innocent/r>c, guilty
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John Reid, Control Question test- “have you ever  told a lie?” to get innocent to lie too/  compare to relevant/  c>r, innocent/ r>c, guilty
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Stim test to convince of power of polygraph Show 7 playing cards, tell subject to pick one and  lie.  Use duplicates or stack the deck and tell subject  the polygraph told them which one he lied to Ethics?
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