The machine commonly used in attempts to detect lies,which measures autonomic responses,is called a(n)

A) electrocardiograph.
B) electroencephalograph.
C) myograph.
D) polygraph.

Polygraph

A device that measures physiological responses, such as heart rate and sweat production, to assess truthfulness.

Electrocardiograph

A device used to record the electrical activity of the heart over a period of time.

Electroencephalograph

A machine used to record the electrical activity of the brain through electrodes attached to the scalp.