polygraph

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detector

 [de-tek´ter]
a device by which an object or condition can be discovered.
image detector any recording medium used in radiology, such as film or a cathode ray tube.
lie detector polygraph.

pol·y·graph

(pol'ē-graf),
1. An instrument to obtain simultaneous tracings from several different sources; for example, radial and jugular pulse, apex beat of the heart, phonocardiogram, electrocardiogram. The ECG is nearly always included for timing.
2. An instrument for recording changes in respiration, blood pressure, galvanic skin response, and other physiologic changes while the person is questioned about some matter or asked to give associations to relevant and irrelevant words; these physiologic changes are presumed to be indicators of emotional reactions, and thus whether the person is telling the truth. Synonym(s): lie detector
[poly- + G. graphō, to write]

polygraph

(pŏl′ē-grăf′)
n.
An instrument that measures the physiological responses of an individual to questions from an examiner who interprets the results as indicating the likelihood that the individual is telling or not telling the truth in giving the answers.
tr.v. poly·graphed, poly·graphing, poly·graphs
To test (a criminal suspect, for example) with a polygraph.

po·lyg′ra·pher (pə-lĭg′rə-fər), po·lyg′ra·phist (-fĭst) n.
pol′y·graph′ic adj.
Commonly called a lie detector. An instrument that measures and records a test subject’s sympathetic nervous system responses—pulse, blood pressure, galvanic skin conductance due to sweating, breathing rhythms, and temperature—to a series of questions, on the premise that true and false answers produce distinctive patterns of response.

polygraph

Lie detector A device designed to detect deception by evaluating physiologic responses to various spoken questions, measuring and recording changes in electrical and mechanical impulses in various parameters–eg, bp, respiratory rate, galvanic skin reflex

pol·y·graph

(pol'ē-graf)
1. An instrument for obtaining simultaneous tracings from several different sources (e.g., radial and jugular pulse, apex beat of the heart, phonocardiogram, electrocardiogram). The electrocardiogram is nearly always included for timing.
2. An instrument for recording changes in respiration, blood pressure, galvanic skin response, and other physiologic changes while the subject is interviewed or asked to give associations to relevant and irrelevant words; the physiologic changes are presumed to be emotional reactions, and thus indicative of whether the subject is telling the truth.
Synonym(s): lie detector.
[poly- + G. graphō, to write]

polygraph

An instrument that simultaneously records changes in various physiological parameter such as pulse rate, respiration rate, blood pressure and skin resistance changes from sweating. These sensitively reflect alterations in the emotions and the device is used to detect deception in answers to questions. A ‘lie detector’.
References in periodicals archive ?
A spokesman for Northumbria Police said they would not comment on the results of the lie detector test.
" The bias of the investigating agency is established from the fact that the investigating officer prayed for the lie detector test of the respondent ( Chandra) and other accused ( Sudhir Chaudhary, the editor of Zee News and Samir Ahluwalia, the editor of Zee Business News).
England skipper Andrew Strauss, who is beyond reproach, said: "I don't know about the accuracy of lie detector tests but I do know we don't want the whiff of anything suspicious in the game."
A COUPLE who shocked Britain by claiming they were too fat to work are batling to save their marriage after lie detector tests on TV's Jeremy Kyle Show said BOTH of them had cheated.
De Lima said that she had asked NBI Director Nonatus Ceasar Roxas to conduct the lie detector test on Go, his nephew and his sister after the findings of an NBI investigation matched Go's claim that he and Yu were indeed taken from the NBP.
Mr Bradley said: "He failed the lie detector test but was adamant he hadn't done anything wrong, saying, 'I'll come up with flying colours, I've never cheated on her'.
Summary: New Delhi [India], July 26 (ANI): A Delhi court will on Wednesday hear the matter of administrating the lie detector test to witness Abhishek Verma and accused Congress leader Jagdish Tytler in the 1984 anti-Sikh riots case.
They are here to be educated, not to be considered criminals where they have to take a lie detector test about candy," said parent Nakida Henry.
A NEW lie detector test has found that it takes almost a third longer to tell a fib than the truth.
A MOTHER-OF SIX was asked to take a lie detector test on television to prove she was telling the truth about evidence she gave which helped evict a neighbour from hell.
I've asked what I can do to convince her and she says I should get a lie detector test done.