Before I get into specifics, it is important to realize that when I refer to a certain brain wave, I am implying that a particular brain wave is “dominant.” Throughout the day in your waking state, your EEG will display all 5 types of brain waves at the same time.
Beta waves (12 to 38 Hz) Beta brainwaves dominate our normal waking state of consciousness when attention is directed towards cognitive tasks and the outside world. Beta is a ‘fast’ activity, present when we are alert, attentive, engaged in problem solving, judgment, decision making, or focused mental activity.
Gamma (above 40Hz) – The Insight Wave. This range is the most recently discovered and is the fastest frequency at above 40Hz. While little is known about this state of mind, initial research shows Gamma waves are associated with bursts of insight and high-level information processing.
Theta State is a state of very deep relaxation; it is used in hypnosis and during REM Sleep. The brain waves are slowed down at a frequency of 4-7 cycles per second. For this reason, the People meditate consecutively for hours, in order to achieve this state, in order to have access to the absolute perfect calm.