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The Epic Interactive Encyclopedia 1998
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Epic Interactive Encyclopedia, The - 1998 Edition (1998)(Epic Marketing).iso
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Polygraph
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INFOTEXT
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1992-09-02
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318b
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9 lines
An instrument that records graphically
certain body activities, such as thoracic and
abdominal respiration, blood pressure, pulse
rate, and galvanic skin response (changes in
electrical resistance of the skin). Marked
changes in these activities when a person
answers a question may indicate that the
person is lying.