A predominance of which waves in an electroencephalogram (EEG)might indicate that a person is physically and mentally relaxed?
A) Alpha
B) Beta
C) Theta
D) Delta
E) Gamma

Question

Quizplus · Accepted Answer

Alpha waves are typically present when a person is awake but physically and mentally relaxed, such as when closing one's eyes or beginning to fall asleep. Therefore, a predominance of alpha waves in an EEG would indicate that a person is physically and mentally relaxed. Beta waves, on the other hand, are associated with periods of focused attention and mental activity, while theta and delta waves are associated with deeper levels of relaxation or sleep. Gamma waves are typically associated with higher cognitive processes such as perception and consciousness.

A Predominance of Which Waves in an Electroencephalogram (EEG)might Indicate