24. Stage 3 sleep is characterized by:

A. Beta waves
B. Delta waves
C. Sleep spindles
D. Rapid eye movements

Question

24. Stage 3 sleep is characterized by:

A. Beta waves
B. Delta waves
C. Sleep spindles
D. Rapid eye movements

BlackTom AI · Accepted Answer

Question restatement: Stage 3 sleep is characterized by:

Options:
A. Beta waves
B. Delta waves
C. Sleep spindles
D. Rapid eye movements

Option A: Beta waves. These are typically associated with wakeful rest and active alertness, not deep sleep. In sleep studies, beta activity is linked to an awake or REM-like state, so this choice mislabels the EEG pattern of stage 3.

Option B: Delta waves. Delta waves are slow, high-amplitude brain waves that dominate deep non-REM sleep (N3), also known as slow-wave sleep. This is the hallmark EEG feature of stage 3, aligning with the classic understanding of deep sleep physiology.

Option C: Sleep spindles. Sleep spindles are brief bursts of sigma frequency activity that occur primarily during stage 2 non-REM sleep. They indicate lighter sleep depth compared to stage 3, so this option points to the wrong stage.

Option D: Rapid eye movements. Rapid eye movements occur during REM sleep, not during stage 3 non-REM sleep. REM is associated with desynchronized EEG activity and vivid dreaming, distinguishing it from deep slow-wave sleep described by delta activity.

Additional reflection: Recognizing stage 3 sleep hinges on identifying the presence of delta waves and the overall move toward deep, restorative sleep. Other options either refer to wakefulness (beta), lighter non-REM features (spindles in stage 2), or REM characteristics (eye movements), which do not describe stage 3.

24. Stage 3 sleep is characterized by: A. Beta waves B. Delta waves C. Sleep spindles D. Rapid eye movements 单项选择题

类似问题

16. Stage 1 sleep resembles wakefulness because it shows: A. Delta waves B. Spindles and K-complexes C. Low amplitude, high frequency EEG D. Theta-suppression waves Answer: C. Low amplitude, high frequency EEG

When our brain waves are in the waves activity, one would be in stage one of sleep.

When we enter this stage of sleep, our brain waves change to theta waves.

In this stage of sleep, we are no longer responsive to the outside world and our sensory experiences drop.

Each stage of sleep is characterized by different types of brain wave patterns.

Question at position 17 ________ is the deepest stage of sleep, during which we are least responsive to outside stimulation.Stage 1 sleepStage 3 sleepStage 4 sleepStage 2 sleep

Which stage of sleep is characterized by delta waves?

Sleepwalking is most common during which stage of sleep?

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