Polygraphy is the practice of using a polygraph machine (sometimes referred to as a "lie detector") to measure physiological changes such as blood pressure, pulse, skin conductivity, and breathing rate, which hypothetically indicate deception.
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Examines possible abuse associated with the use of polygraphs. Provides informational resources and discussion forum.
Official documents and other resources on polygraph testing.
Animated article shows how polygraph machines work and some popular countermeasures.
Full text of report by National Academy of Sciences for US Department of Energy, finding polygraphs too inaccurate to be relied on in security screening.
Skeptical article about what polygraphs measure and how examinations are conducted, why they are not lie detectors, and the inadmissability of polygraph tests in courts of law.
"Bureaucratic reliance on today's fault-ridden system lets well-trained spies and terrorists penetrate our defenses." By William Safire. [New York Times] [Free subscription required.]
(October 10, 2002)
"The scientists at the national laboratories are willing to sacrifice some of their constitutional protections for meaningful benefits to security, but they are unwilling to do so for nonsense." By Alan Zelicoff. [Skeptical Inquirer]
(July 01, 2001)
Well-researched article on polygraph screening. [National Journal]
(September 11, 2000)
"Professional criminals are the ones most likely to beat the lie detector." By Susan McCarthy. [Salon]
(March 02, 2000)
"It's junk science, but proponents say it can be a useful tool in interrogations, and even a deterrent." By Susan McCarthy. [Salon]
(March 02, 2000)
Examines possible abuse associated with the use of polygraphs. Provides informational resources and discussion forum.
Full text of report by National Academy of Sciences for US Department of Energy, finding polygraphs too inaccurate to be relied on in security screening.
Animated article shows how polygraph machines work and some popular countermeasures.
Skeptical article about what polygraphs measure and how examinations are conducted, why they are not lie detectors, and the inadmissability of polygraph tests in courts of law.
Official documents and other resources on polygraph testing.
"Bureaucratic reliance on today's fault-ridden system lets well-trained spies and terrorists penetrate our defenses." By William Safire. [New York Times] [Free subscription required.]
(October 10, 2002)
"The scientists at the national laboratories are willing to sacrifice some of their constitutional protections for meaningful benefits to security, but they are unwilling to do so for nonsense." By Alan Zelicoff. [Skeptical Inquirer]
(July 01, 2001)
Well-researched article on polygraph screening. [National Journal]
(September 11, 2000)
"Professional criminals are the ones most likely to beat the lie detector." By Susan McCarthy. [Salon]
(March 02, 2000)
"It's junk science, but proponents say it can be a useful tool in interrogations, and even a deterrent." By Susan McCarthy. [Salon]
(March 02, 2000)
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- Recently edited by cherel
- Recently edited by cherel