Delta – 0.1 to 3 Hz (Survival, Deep Sleep, Coma, Dreaming)
Theta – 4 to 7 Hz (Feelings, Dreams, Drowsy, Idealing
Alpha – 8 to 12 Hz (Awareness of body, Integration of feelings, Relax)
Beta – 13 to 40 Hz ( Thinking, Perception, Mental Activity, Alert)