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Can you really prove if someone is lying by hooking them up to a machine and running some tests? Apparently so if you use a polygraph, otherwise known as a lie detector. It works by measuring changes in the body such as blood pressure, pulse, respiration, and skin conductivity when a person is asked a series of questions. How reliable is a lie detector and are the results ever wrong? | The Infographics Show
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Can you really prove if someone is lying by hooking them up to a machine and running some tests? Apparently so if you use a polygraph, otherwise known as a lie detector. It works by measuring changes in the body such as blood pressure, pulse, respiration, and skin conductivity when a person is asked a series of questions. How reliable is a lie detector and are the results ever wrong? | The Infographics Show
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Streamers and pop culture on Instagram: "Think lie detectors, or polygraphs, are foolproof truth machines? Think again. Despite the dramatic movies, they don’t actually detect lies. Instead, they measure physical reactions—heart rate, blood pressure, breathing, and skin sweat. The assumption is simple: lying makes you nervous, nervousness shows in your body, and voilà—the polygraph “detects” deception. Sounds easy, right? Here’s the catch: not everyone reacts the same way to lying. Some people c
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