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Lie detector test

Lie detector test


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Lie detector test

MODEL RELEASED. Lie detector test. Pulse meters on a mans fingers used for a lie detector, or polygraph, test. Under the subjects hands are the traces produced by the polygraph. A polygraph records changes in a number of physiological processes, as a series of questions are asked by an examiner. As well as measuring heart rate with these pulse meters, blood pressure and respiration rate are also measured. The examiner interprets the results to determine if the subject demonstrated deceptive behaviour. The reliability of polygraphs is controversial and their evidence is not admissible in court

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6432709

© TEK IMAGE/SCIENCE PHOTO LIBRARY

Behaviour Crime Criminal Deception Detecting Detection Examination Finger Fingers Graph Hand Heart Rate Interrogation Lie Detector Measuring Of Deception Paper Physiological Physiological Measurement Physiology Polygraph Psychology Psychophysiological Detection Pulse Meter Recording Results Test Thirties Trace Traces Unproven Unreliable Health Care Meters


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