Polygraph - Wikipedia
A polygraph, often incorrectly referred to as a lie detector test, [1][2][3] is a pseudoscientific [4][5][6] 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. [7] .
Amazon.com: Lie Detector Test Machine
Lie Detection Test Machine, Micro Electric Shocking Lie Detector, Finger Shocking Polygraph Analyzer Machine Electric Amazing Chance Toy Hand Buzzer Games for Party Game
Amazon.com: USB Polygraph Real Home Lie Detector : Toys
With the USB Polygraph you get a real polygraph machine! Use this lie detector to determine the truth (80%-99% accuracy). Great for parties, truth or dare, and more!
Are Lie Detector Tests Reliable? Here’s What Science Says
When Lie Detectors Lie: Famous Polygraph Fails. Still think lie detectors are legit? These infamous cases might make you think twice: The Spy Who Fooled the Machine. Aldrich Ames, a CIA officer turned Soviet double agent, passed two …
What are the Different Types of Lie Detector Machines?
Mar 29, 2024 · Understand the different types of lie detector machines and how each one functions in the field of deception detection.
How Does a Lie Detector (Polygraph) Work? - HowStuffWorks
The goal of a lie detector is to see if the person is telling the truth or lying when answering certain questions. When a person takes a polygraph test, four to six sensors are attached to him. A polygraph is a machine in which the multiple ("poly") signals from the sensors are recorded on a single strip of moving paper ("graph").
The Truth About Lie Detectors (aka Polygraph Tests)
Aug 5, 2004 · Even the term "lie detector," used to refer to polygraph testing, is a misnomer. So-called "lie detection" involves inferring deception through analysis of physiological responses to a structured, but unstandardized, series of questions.
Lie detectors: Why they don’t work, and why police use them …
Aug 14, 2014 · It began as a device that detected a person's blood pressure, and was later equipped with the ability to measure galvanic skin response on a person's hand (which is a proxy for sweat) as well...
Lie detector | Definition, Accuracy, & Facts | Britannica
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 then used as the basis for making a judgment as to whether or not the subject is lying.
How Lie Detectors Work - HowStuffWorks
Lie detection is a consistently controversial topic -- how can a machine tell truth from deception? Does everyone have the same physiological reaction when telling a lie? If so, how can some people "beat the box"? Find out what these devices measure and if they really can detect lies.