Table 3.

Five EEG frequency bands.

Parameters	Frequency range (Hz)	Magnitude (µV)	Activity	Remark
β	13–30	<30 µV	Desynchronized	Mental occupation
α	8–13	50–100 µV	Synchronized	Relaxed, tranquility, and wakefulness
θ	4–8	20–40 µV	Desynchronized	Dreaming state
δ	0.5–4	75–150 µV	Desynchronized	State of dreamless sleep
γ	30–70	—	Synchronized	Sensory integration