Respiration decreases from wakefulness and displays rhythmic periodicity in breathing amplitude during which sleep stage?

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Multiple Choice

Respiration decreases from wakefulness and displays rhythmic periodicity in breathing amplitude during which sleep stage?

Breathing becomes steadier and slower as you enter non-REM sleep. In this stage the autonomic system shifts toward parasympathetic dominance, reducing respiratory drive and smoothing out ventilation. The result is a slower rate with a more regular, rhythmic pattern and periodic-looking fluctuations in amplitude. REM sleep, in contrast, features more irregular breathing due to phasic autonomic activity and muscle atonia, while wakefulness shows higher, more variable respiration. So the described pattern is characteristic of non-REM sleep.

Breathing becomes steadier and slower as you enter non-REM sleep. In this stage the autonomic system shifts toward parasympathetic dominance, reducing respiratory drive and smoothing out ventilation. The result is a slower rate with a more regular, rhythmic pattern and periodic-looking fluctuations in amplitude. REM sleep, in contrast, features more irregular breathing due to phasic autonomic activity and muscle atonia, while wakefulness shows higher, more variable respiration. So the described pattern is characteristic of non-REM sleep.

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