The polygraph measures
A)changes in emotional arousal associated specifically with deception
B)changes in blood pressure,voice modulation,and perspiration
C)changes in blood pressure,respiration,and skin conductance
D)increases in emotional arousal in response to the control question compared to the relevant question,indicative of deception
E)changes in blood pressure,brain-wave activity,and respiration

Question

Quizplus · Accepted Answer

The polygraph measures changes in blood pressure, respiration, and skin conductance, which are all physiological responses associated with emotional arousal. These changes are not specific to deception but instead reflect the test-taker's emotional state during the test.

The Polygraph Measures