How does a polygraph (commonly known as a lie detector) function?

Multiple choice question for Emotions. Select an option, then review the explanation below.

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By tracking physiological signals related to autonomic nervous system activity.By directly determining whether someone is telling the truth.By observing the individual's facial movements and expressions.By combining all the above methods.

Explanation

A polygraph operates by measuring physiological responses controlled by the autonomic nervous system, such as heart rate, respiration, and skin conductivity. It does not directly verify the truthfulness of statements nor primarily rely on facial expression analysis.

Practice related questions from the same subject.

1.A competitive racer nears the finish line with a pounding heart and dry mouth, caused by a rise in which substance?
2.Which facial expression is considered the most widely understood across different cultures?
3.What aspect of emotional response does a polygraph, commonly known as a lie detector, mainly assess?
4.What does the term 'kinesics' primarily study?
5.What does Schachter’s two-factor theory propose about the nature of emotions?

How does a polygraph (commonly known as a lie detector) function?

Explanation

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