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Paul Christian Gayon
on Oct 26, 2024

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The theory behind the polygraph test is that people who are lying

A) have increased activity of the sympathetic nervous system.
B) shift the pattern of blood flow in the brain.
C) have increased activity of the parasympathetic nervous system.
D) change their eye movements.

Sympathetic Nervous System

Part of the autonomic nervous system that prepares the body for fight or flight response by accelerating heart rate, dilating pupils, and increasing blood flow to muscles.

  • Understand the physical foundations of falsehoods and the core principles guiding lie detector tests.
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