The presence of sleep spindles and K complexes are the defining characteristics of:
A)narcolepsy.
B)stage 2 NREM sleep.
C)stage 3 and 4 NREM sleep.
D)REM sleep behavior disorder.

Question

Quizplus · Accepted Answer

Sleep spindles and K complexes are commonly observed in stage 2 NREM sleep. They are brief bursts of brain activity that signify a transition between light and deep sleep. Narcolepsy is characterized by excessive daytime sleepiness, whereas REM sleep behavior disorder is associated with acting out dreams during REM sleep. Stage 3 and 4 NREM sleep are characterized by slow wave activity, rather than sleep spindles and K complexes.

The Presence of Sleep Spindles and K Complexes Are the Defining