Table S2.

State-dependent peak frequency

State	Peak frequency, Hz	Interval, s
Human WAKE γ	42.3 ± 3.8	2.4 ± 1.8
Human REM γ	41.6 ± 4.1	2.4 ± 1.8
Human SWS γ	40.9 ± 4.0	2.4 ± 1.9
Monkey WAKE β	24.6 ± 2.9	1.3 ± 0.7
Monkey SWS β	22.8 ± 3.6	1.6 ± 1.1

For each state-oscillation category, peak frequency and interepisode interval are depicted above.