Unverified50% confidenceFactExact time
The default mode network (DMN) shows significant activation during REM sleep, in sharp contrast to the suppression of DMN activity during non-REM deep sleep.
1
Sources
50%
Confidence
Long-term
Relevance
8/18/2026
First Seen
Sources
Related Claims
VerifiedHuman sleep alternates between NREM and REM, consisting of 4 to 6 complete cycles per night, with each cycle lasting approximately 90 minutes74% similarUnverifiedResearch has found that the N1 and MMN components may still be present during REM sleep but with altered amplitudes, while the P300 component is typically significantly attenuated or even absent.73% similarUnverifiedA 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.73% similar
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