A device that monitors electrical activity of the brain over time is the
A) electroencephalograph or EEG.
B) polygraph.
C) electromyograph or EMG.
D) electrocardiograph or EKG.

Question

Quizplus · Accepted Answer

An electroencephalograph (EEG) is a device that monitors and records the electrical activity of the brain over time. The other options listed are devices that monitor different bodily functions, such as the polygraph for detecting changes in physiological responses to determine if someone is telling the truth, the electromyograph for measuring muscle activity, and the electrocardiograph for measuring heart activity.

A Device That Monitors Electrical Activity of the Brain Over