Unverified50% confidenceFactExact time
几乎所有陆生哺乳动物和鸟类都表现出REM睡眠特征，显示REM睡眠在进化上具有高度保守性
1
Sources
50%
Confidence
Long-term
Relevance
8/18/2026
First Seen
Sources
Related Claims
UnverifiedA study published in Nature Neuroscience in 2019 confirmed that REM sleep is responsible for selectively deleting irrelevant information, preventing the brain from being overwhelmed by redundant data.75% similarUnverifiedThe default mode network (DMN) shows significant activation during REM sleep, in sharp contrast to the suppression of DMN activity during non-REM deep sleep.70% similarVerifiedHuman sleep alternates between NREM and REM, consisting of 4 to 6 complete cycles per night, with each cycle lasting approximately 90 minutes68% similarUnverifiedREM睡眠期间眼球快速运动，脑电波呈现低振幅、高频率的去同步化活动，但骨骼肌处于近乎瘫痪的肌肉弛缓状态68% similar
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