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 ?
The Punjab Forensic Science Agency is one of the greatest achievements of the provincial government, with state-of-the-art facility, equipped with polygraph machines, DNA analysis and computer forensic capabilities.
Eye detection tests can be taken by many at once but officers can only test one at a time using polygraph machines.
I have not seen the polygraph machines but I dont mind appearing for the lie detector test.
Technologies such as the computer voice stress analyzer (CVSA) and polygraph machines are often compared to it, despite the fact that they are fundamentally different.
The firm does not just deal with computers though and among the more surprising projects under way is an order to work on polygraph machines (lie detectors), as well as scanners and other hi-tech equipment.
Department for Trade and Industry civil servants recommended the use of FBI-style polygraph machines amid fears pit injuries were being exaggerated.
As charges multiplied, the investigation morphed and led to the bizarre scene of two bishops, Hubbard and Matthew Clark of Rochester, each being hooked up to polygraph machines and being asked, among other things, if they had ever had sex with each other.
This week probation officers who will carry out the tests, plus police from Hertfordshire and South Yorkshire, will graduate from an 11-week course in using these polygraph machines.
Lie detectors, or polygraph machines, are not used by British police and they are inadmissible in most European courts.
If there was polygraph machines on everyone, there would probably be a different story.
Jonas came up with the idea after he appeared on a game show pilot where the contestants were hooked up to polygraph machines.