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?

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

Career Do Lie Detector Tests Really Work? The modern polygraph test is widely used, but is it accurate? Posted January 14, 2020 | Reviewed by Abigail Fagan ...

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 ...

The image, taken around 1935, is a staged recreation of the first time the couple met—also over a lie detector machine, also with him trying to play a card trick.