The effectiveness of the lie detector as a method of assessing deception rests upon the assumption that
A)specific hormone levels increase when someone is lying and trigger responses
B)the brains of people who are lying are more active and trigger responses
C)specific lower brain structures become more active when someone is lying and trigger responses
D)people have less control over their physiological responses than they do over other behaviours

Question

Quizplus · Accepted Answer

The effectiveness of lie detectors (polygraphs) is based on the premise that when people lie, they exhibit physiological responses that are beyond their conscious control, such as changes in heart rate, blood pressure, and sweating. These responses are measured by the lie detector. The other options (A, B, C) are not universally accepted bases for the operation of lie detectors.

The Effectiveness of the Lie Detector as a Method of Assessing