AP PSYCHOLOGY

Detailed explanation-1: -Polygraphs are the most popular lie detector tests used in the United States. Polygraphs measure physiological arousal factors, including heart rate, blood pressure, respiration, perspiration, and skin conductivity.

Detailed explanation-2: -Polygraphs measure emotion-linked autonomic arousal, as reflected in changed breathing, heart rate, and perspiration.

Detailed explanation-3: -Polygraphs are designed to measure the changes in breathing, cardiovascular activity, and perspiration that are thought to accompany specific emotions.

Detailed explanation-4: -Polygraph-a machine, commonly used in attempts to detect lies, that measures several of the physiological responses accompanying emotion (such as perspiration and cardiovascular and breathing changes).