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词汇 Polygraphy
分类 英语词汇 英语翻译词典
释义

Polygraphy

英语百科

Polygraph

American inventor Leonarde Keeler (1903–1949) testing his improved lie-detector on Dr. Kohler, a former witness for the prosecution at the 1935 trial of Bruno Hauptmann.
Brochure of the Defense Security Service (DSS) about polygraph testing

A polygraph, popularly referred to as a lie detector, measures and records several physiological indices such as blood pressure, pulse, respiration, and skin conductivity while the subject is asked and answers a series of questions. The belief underpinning the use of the polygraph is that deceptive answers will produce physiological responses that can be differentiated from those associated with non-deceptive answers; the polygraph is one of several devices used for lie detection.

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