The polygraph or "lie detector" primarily measures which component of emotion?
Correct answer: C. physiological arousal
- A. attribution
- B. emotional expression
- C. physiological arousal
- D. vocal modulation
Explanation
A polygraph records physiological arousal, such as changes in heart rate, breathing, blood pressure, and skin conductance. It does not directly detect lying or measure a person’s emotional meaning or attribution.
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