Which instrument used for measuring sympathetic nervous system activity is being increasingly used for employment screening and as part of criminal investigations?

Question

Quizplus · Accepted Answer

Polygraph machines measure physiological responses (such as heart rate, blood pressure, respiration, and skin conductivity) that are believed to change under stress or when a person is not telling the truth, making them a tool for assessing sympathetic nervous system activity. They are used in some employment screenings and criminal investigations for this purpose.

Which Instrument Used for Measuring Sympathetic Nervous System Activity Is