In combination, stage 3 NREM and stage 4 NREM:
A)occur mostly during the second half of the night.
B)are called paradoxical sleep.
C)are comprised mostly of beta brain wave activity.
D)are referred to as slow-wave sleep.

Question

Quizplus · Accepted Answer

Stage 3 NREM and stage 4 NREM are referred to as slow-wave sleep as they are characterized by slow, large-amplitude delta waves in the EEG recordings. They typically occur mostly during the first half of the night, in contrast to REM sleep which occurs more frequently in the second half of the night. Beta brain waves are not present during slow-wave sleep as they are more commonly associated with wakefulness and REM sleep. Paradoxical sleep is another term for REM sleep.

In Combination, Stage 3 NREM and Stage 4 NREM