lie detector

English - Turkish

Definition of lie detector in English Turkish dictionary: yalan makinesi
Dan yalan makinesi testine girmekte ısrar etti. - Dan insisted on taking a lie detector test.

English - English

Definition of lie detector in English English dictionary: A polygraph, a device which measures and records several physiological variables such as blood pressure, heart rate, respiration and skin conductivity while a series of questions is being asked to a subject, in an attempt to detect lies; a polygraph that records bodily changes sometimes associated with lying; A lie detector is an electronic machine used mainly by the police to find out whether a suspect is telling the truth. the results of a lie detector test. = polygraph. A polygraph used to detect possible deception during an interrogation. a piece of equipment used especially by the police to check whether someone is lying, by measuring sudden changes in their heart rate. or polygraph Instrument for recording physiological phenomena (including blood pressure, pulse rate, and respiration) of a human subject as he or she answers questions asked by an operator. These data (recorded as graphs) are used as the basis for judging whether the subject is lying. The phenomena usually chosen for recording are those not easily controlled voluntarily. The types of questions asked, their wording, and the mode of presentation have a tremendous effect on the results and their reliability. Used in police interrogation and investigation since 1924, the lie detector is still controversial among psychologists and not always accepted as evidence in courts; polygraph machine, device used to determine the truth of a person's statements (based on changes in the person's respiration, pulse rate, etc.)
lie detectors: plural form of lie detector