Sleep spindles originate from:
A) PGO waves.
B) sudden stimuli.
C) SCN neurons.
D) interactions between the thalamus and cortex.

Question

Quizplus · Accepted Answer

Sleep spindles originate from interactions between the thalamus and cortex. During stage 2 sleep, the thalamus generates bursts of spindle activity that are then transmitted to the cortex. These sleep spindles are believed to play a role in memory consolidation and protection of sleep from external disturbances. PGO waves are associated with rapid eye movement (REM) sleep, sudden stimuli may disrupt sleep but do not originate sleep spindles, and SCN neurons are involved in regulating the sleep-wake cycle but not directly in generating sleep spindles.

Sleep Spindles Originate From