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

/poly·graph/ (pol´e-graf) an apparatus for simultaneously recording blood pressure, pulse, and respiration, and variations in electrical resistance of the skin; popularly known as a lie detector.

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.

polygraph

[pol′ē·graf]
Etymology: Gk, polys + graphein, to write
an apparatus for simultaneously recording several mechanical or electrical impulses, such as blood pressure, pulse and respiration, and variations in electrical resistance of the skin; popularly known as lie detector.
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’.

polygraph

an apparatus for simultaneously recording several mechanical or electrical impulses, such as blood pressure, pulse and respiration, and variations in electrical resistance of the skin.
References in periodicals archive ?
When I feel right I will contact yourself and arrange to take a lie detector test.
Lance Armstrong His lawyer Tim Herman said he would be keen for the 26 witnesses who testified against Armstrong to the USADA to take lie detector tests.
Mr Burgess, who carried out a lie detector test on Colin Stagg, the suspect acquitted of the Wimbledon Common murder of young mother Rachel Nickell, said: "After carrying out the test on Mike O'Brien, I am totally certain that he is innocent, just as I was sure that Colin Stagg was innocent.
Nevertheless, lie detector tests will always appeal to law-enforcement agencies because they favor people who think in black and white (you're either with us, or you're against us) and who dismiss nuance as obfuscation.
Weinberger has taken and passed a lie detector test on the matter," the Journal wrote.
Discharging, disciplining, or discriminating against any employee or prospective employee for refusing or failing to take a lie detector test or for exercising any rights under the EPPA.
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.
A MEMBER of the suspended Wallasey Labour party has challenged his MP to take a lie detector test over claims of threats and homophobic abuse.
An adult film company has offered porn star Farrah Abraham $1 million to take a lie detector test and prove that she is telling the truth.
ZEE group chairman Subhash Chandra's plea to undergo a lie detector test in the presence of his lawyer and after consultation with his doctors got the green light from a Delhi court on Thursday.
JUSTICE Secretary Leila de Lima has asked the National Bureau of Investigation (NBI) to subject inmate Rolito Go, as well as the latter's nephew and sister, to a lie detector test to verify their story that Go had been abducted and had not escaped from the national penitentiary in Muntinlupa City last week.
DEFIANT Paddy Conroy today called for a police review of his torture conviction after claiming a lie detector test had cleared him of his criminal past.