Binaural beats
and BrainWaves
(Brainwave Entrainment)
Source: http://blog.musicalrelaxation.com/article.php?sid=5
Frequency range |
Name |
Usually associated with: |
> 40 Hz |
Gamma waves |
Higher mental activity, including perception, problem solving, fear, and consciousness |
13–40 Hz |
Beta waves |
Active, busy or anxious thinking and active concentration, arousal, cognition |
7–13 Hz |
Alpha waves |
Relaxation (while awake), pre-sleep and pre-wake drowsiness |
4–7 Hz |
Theta waves |
Dreams, deep meditation, REM sleep |
< 4 Hz |
Delta waves |
Deep dreamless sleep, loss of body awareness |
Brainwave entrainment has many historical, and often social, manifestations. Drum circles, chanting, and staring at a fire were all ways that our ancestors partook in the phenomenon.
40 Hz |
Gamma |
information-rich task processing and high-level information processing, extremal abilities |
above 18 |
High Beta |
fully awake, normal state of alertness, stress and anxiety |
15 - 18 Hz |
Mid-range Beta |
increased mental abilities, focus, alertness, IQ |
12 - 15 Hz |
Low Beta |
relaxed focus, improved attentive abilities |
8 - 12 Hz |
Alpha |
light relaxation, “super learning”, positive thinking |
3 - 8 Hz |
Theta |
deep relaxation, meditation, increased memory, focus, creativity, lucid dreaming, hypnagogic state |
0.1 - 3 Hz |
Delta |
deep sleep, lucid dreaming, increased immune functions, hypnosis |
U.S. Patent No. 5289438
omega |
0.875 - 1.75 Hz |
delta |
1.75 - 3.5 Hz |
theta |
3.5 - 7.0 Hz |
alpha |
7.0 - 14.0 Hz |
beta |
14.0 - 28.0 Hz |
gamma |
28.0 - 56.0 Hz |
epsilon |
56.0 - 112.0 Hz |
zeta |
112.0 - 224.0 Hz |