Definitions for lie detector
lie de·tec·tor

Princeton's WordNetRate this definition:0.0 / 0 votes

1. lie detectornoun

   a polygraph that records bodily changes sometimes associated with lying

WiktionaryRate this definition:0.0 / 0 votes

1. lie detectornoun

   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.

WikipediaRate this definition:0.0 / 0 votes

1. lie detector

   A polygraph, often incorrectly referred to as a lie detector test, is a device or procedure that measures and records several physiological indicators such as blood pressure, pulse, respiration, and skin conductivity while a person is asked and answers a series of questions. The belief underpinning the use of the polygraph is that deceptive answers will produce physiological responses that can be differentiated from those associated with non-deceptive answers; however, there are no specific physiological reactions associated with lying, making it difficult to identify factors that separate those who are lying from those who are telling the truth.In some countries, polygraphs are used as an interrogation tool with criminal suspects or candidates for sensitive public or private sector employment. US law enforcement and federal government agencies such as the FBI, DEA, CIA, NSA, and many police departments such as the LAPD and the Virginia State Police use polygraph examinations to interrogate suspects and screen new employees. Within the US federal government, a polygraph examination is also referred to as a psychophysiological detection of deception (PDD) examination. The average cost to administer the test in the United States is more than $700 and is part of a $2 billion industry.Assessments of polygraphy by scientific and government bodies generally suggest that polygraphs are highly inaccurate, may easily be defeated by countermeasures, and are an imperfect or invalid means of assessing truthfulness. A comprehensive 2003 review by the National Academy of Sciences of existing research concluded that there was "little basis for the expectation that a polygraph test could have extremely high accuracy." The American Psychological Association states that "most psychologists agree that there is little evidence that polygraph tests can accurately detect lies."The control question test, also known as the probable lie test, was developed to overcome or mitigate the problems with the relevant-irrelevant testing method. Although the relevant questions in the probable lie test are used to obtain a reaction from people who are lying, the physiological reactions that distinguish lies may also occur in innocent individuals who fear false detection or feel passionately that they did not commit a crime. Therefore, although a physiological reaction may be occurring, the reasoning behind the response may be different. Further examination of the probable lie test has indicated that it is biased against innocent subjects. Those who are unable to think of a lie related to the relevant question will automatically fail the test.

Matched Categories

1. • Polygraph

How to pronounce lie detector?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say lie detector in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of lie detector in Chaldean Numerology is: 7

2. Pythagorean Numerology

   The numerical value of lie detector in Pythagorean Numerology is: 8

Examples of lie detector in a Sentence

1. Hillary Clinton:

   He took a lie detector test. I had him take a polygraph, which he passed, which forever destroyed my faith in polygraphs, oh, he plea bargained. Got him off with time served in the county jail, he’d been in the county jail about two months.

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=lie detector
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Lie_Detector
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Lie_Detector