Put your detective skills to the test with a lie detector game. Measure physiological responses and experience the suspense of uncovering the truth.

Lie detection has a long history in mythology and fairy tales; the polygraph has allowed modern fiction to use a device more easily seen as scientific and plausible.

Feb 16, 2025 · Understand the different types of lie detector machines and how each one functions in the field of deception detection.

Nov 12, 2025 · 125M consumers helped this year.

Aug 5, 2004 · What are polygraph tests and how do they work? Polygraph machines purport to detect lies by measuring physical changes thought to be associated with lying, such as changes in heart …

Nov 23, 2025 · Overview: Lie detectors, also known as Polygraphs, are machines used for detecting deception.

Lie detector, instrument for recording physiological phenomena such as blood pressure, pulse rate, and respiration of a human subject as he answers questions put to him by an operator; these data are …