Table 1.

EEG/MEG Rhythm Summary

Rhythms	Range (Hz)	Proposed Functional Relevance	Reviews
Delta	1 – 4	Deep sleep; signal matching; decision-making	Harmony (2013)
Theta	4 – 8	Drowsiness and sleep; selective attention; orienting; episodic memory	Basar et al. (1999) Nyhus and Curran (2010)
Alpha	8 – 13	Relaxed wakefulness; semantic memory; visual processing	Basar et al. (1997) Klimesch et al. (2011)
Beta	13 – 30	Focused attention; state maintenance; motor inhibition	Engel and Fries (2010)
Gamma	> 30	Memory; language; visual awareness; perceptual binding; sensory stimulation	Uhlhaas et al. (2011) Basar et al. (1999)

^†Summary of each standard EEG/MEG rhythms, including frequency range and functional relevance. Frequency ranges provided here may serve as a reasonable estimate for each rhythm, but the specific limits of each frequency band vary across studies. Functional relevance of each rhythm has been considerably simplified for the purpose of this paper; we present only the most commonly reported findings as a reference for readers unfamiliar with the EEG/MEG literature.