A great deal of alpha waves are shown when a person is in
A)REM sleep and when a person is awake.
B)Stage 4 and REM sleep.
C)Stage 3 and Stage 4 sleep.
D)all the NREM stages.

Question

Quizplus · Accepted Answer

Alpha waves are present when a person is awake and relaxed, as well as during REM sleep when the brain is more active. Therefore, the best choice is A. Alpha waves are not typically present during Stage 3 and Stage 4 sleep, so choice C is incorrect. While alpha waves may be present during some NREM stages, they are not present during all NREM stages, so choice D is also incorrect.

A Great Deal of Alpha Waves Are Shown When a Person