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Multiple Choice
In which stage of sleep do sleep spindles typically occur?
A
Stage 2 NREM sleep
B
REM sleep
C
Stage 3 NREM sleep
D
Stage 1 NREM sleep
Verified step by step guidance
1
Understand the different stages of sleep: Sleep is divided into REM (Rapid Eye Movement) sleep and NREM (Non-Rapid Eye Movement) sleep, which itself has stages 1, 2, and 3.
Recall the characteristics of each NREM stage: Stage 1 is light sleep, Stage 2 is deeper and marked by specific brain wave patterns, and Stage 3 is deep slow-wave sleep.
Identify what sleep spindles are: Sleep spindles are bursts of oscillatory brain activity visible on an EEG, typically associated with memory consolidation and sensory processing.
Know that sleep spindles are most commonly observed during Stage 2 NREM sleep, distinguishing it from other stages.
Therefore, conclude that the stage of sleep where sleep spindles typically occur is Stage 2 NREM sleep.