Beta (20-28 Hz) and delta (0.3-3 Hz) EEGs oscillate reciprocally across NREM and REM sleep.

@article{Uchida1992BetaH,
  title={Beta (20-28 Hz) and delta (0.3-3 Hz) EEGs oscillate reciprocally across NREM and REM sleep.},
  author={Shigeyuki Uchida and Thomas Maloney and Irwin Feinberg},
  journal={Sleep},
  year={1992},
  volume={15 4},
  pages={352-8}
}
Across-night oscillations of beta (20-28 Hz) and delta (0.3-3 Hz) electroencephalograms (EEGs) were examined with spectral analysis in 10 normal young adult subjects (Ss). In each S, power densities of beta were found to oscillate reciprocally with delta power density across both nonrapid eye movement (NREM) and rapid eye movement (REM) sleep. Linear correlation coefficients between log power density of delta vs. beta were significant (p less than 0.0001) for each S. An incidental observation… CONTINUE READING