From: Electroencephalographic profiles for differentiation of disorders of consciousness
 | Frequency [Hz] | Duration [s] | Min. amplitude [μV] |
---|---|---|---|
Delta waves | 0.2 – 4 | >0.5 | 70 |
Sleep spindles | 11 – 15 | 0.5-2.5 | 12 |
K-complexes* | 0.05 – 2.5 | 0.3 - 1.5 | 100 |
Theta waves | 4 – 8 | > 1 | 15 |
Alpha waves | 8 – 12 | > 1.5 | 5 |
Beta waves | 15 – 25 | > 0.5 | 4 |
Spikes* | 0.2 – 7 | 0.05 - 0.35 | 50 |