Dr. Mills measures participants' brain-wave activity in order to study the brain's response to sounds of varying frequencies. Which type of physiological measure is Dr. Mills using in this scenario?
A)Galvanic skin response
B)Electromyogram
C)Electroencephalogram
D)Electrocardiogram

Question

Quizplus · Accepted Answer

Dr. Mills is using an electroencephalogram (EEG) to study brain-wave activity in response to sounds of varying frequencies. An EEG measures the electrical activity of the brain through electrodes placed on the scalp. Options A, B, and D - Galvanic skin response, electromyogram, and electrocardiogram, respectively - measure other physiological responses such as changes in skin conductivity, muscle activity, and heart activity, but are not relevant to Dr. Mills' study of brain-wave activity.

Dr Mills Measures Participants' Brain-Wave Activity in Order to Study