Ai Videos on Instagram: "How accurate is a polygraph test?A lie detector, or polygraph, is a device that measures and records physiological responses like heart rate, blood pressure, respiration, and skin conductivity while a person is questioned. It operates on the theory that a person’s physical reactions will change when they are being deceptive compared to when they are being truthful. The accuracy of polygraph tests is controversial, and the results are not always considered conclusive evid

Polygraph, Lie Detection & Lie Detector Pricing Guidelines

The FBI and other agencies are using polygraphs to find leakers. But do they work?

Polygraph Test Definition, History & Accuracy - Video | Study.com