Summary "Lie detectors and other truth-telling machines are deeply embedded in everyday American life. Well-known brands such as Isuzu, Pepsi Cola, and Snapple have advertised their products with the ...

Leonarde Keeler, the inventor of the Keeler Polygraph, spent most of his life trying to tell if people were telling the truth. It turned out to be trickier than hooking them up to a machine.

Polygraph tests can supposedly detect when a person is lying. But how can a machine do that, and can we really trust the results they provide?

Today, the lie detector is little more than a curiosity to the general public. But for decades, the device was an inescapable feature of American life, used by police, the government, the CIA and ...

Saxe has called the error rate for polygraph testing “significant,” and concluded that even studying polygraph testing is ...

The machine showed that he was telling the truth. The final test was for him to say "If you live by the sword you die by the sword", which came up as the truth on the lie detector.

Gina, for reasons we’ve tried to forget, told the housewives a season or two ago that her boyfriend Travis had a pair of ...