Rapid eye movement (REM) sleep is often considered to be a global brain state. Here, electroencephalogram recordings during human REM sleep revealed two independent, spatially separate clusters of slow, delta-frequency waves: fronto-central ‘sawtooth’ waves that occurred during eye movements, and slower medial-occipital waves, similar to those seen during non-REM sleep. Thus, delta waves are a feature of REM sleep, and REM sleep is a spatiotemporally heterogeneous brain state.
References
Original article
Bernardi, G. et al. Regional delta waves in human rapid-eye movement sleep. J. Neurosci. https://doi.org/10.1523/JNEUROSCI.2298-18.2019 (2019)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Bray, N. REM sleep makes slow waves. Nat Rev Neurosci 20, 191 (2019). https://doi.org/10.1038/s41583-019-0146-0
Published:
Issue Date:
DOI: https://doi.org/10.1038/s41583-019-0146-0