Brainwave Frequency
brainwave frequency
Binaural Brainwave Entrainment for Dummies
Brainwaves
Brainwaves are the fingerprints of the state of the mind. When we are at rest or relaxed, the brainwaves in the alpha region of 8-14 Hz are dominant. As we go into high thinking mode, the frequencies increase and the brain will be dominated by beta waves, 14-30 Hz. On the other hand, lower frequency brainwaves reflect lower levels of brain activity; for example, the state of drowsiness is represented by theta wave, 4-7 Hz, and the deep sleep by delta waves, 1 – 4 Hz. These waves can be easily recorded by electroencephalography (EEG) over the scalp.
Brainwave Entrainment
Brainwaves have a tendency to resonate with external stimuli such as sounds (or lights) of certain frequencies. This phenomenon is known as frequency following response or entrainment. This fascinating concept has been gainfully used to take the brain to any desired state such as states of deep relaxation, sleep, meditation, etc by sending in the desired frequencies.
For instance, if a person is in the mentally active beta state and if a stimulus of 10 Hz is applied, the dominant brainwave frequency slowly shifts to 10 Hz, and we say that the brain is entrained. After entrainment, changing the applied frequency changes brainwave frequency, and hence the mental state associated with it.
Creation of Binaural Beats
Now the question is how to apply these frequencies? Human ear is not sensitive to frequencies below 20 Hz. So some special technique is required. One popular way is creation of binaural beats. It involves feeding two slightly different sound frequencies through stereo headphones, one to each ear. The difference frequency is perceived in the brain as a warbling sound; these cyclic pulsations are called binaural beats. For example, if you transmit a steady tone of 300 Hz to the left ear and 310 Hz to the right ear, the brain perceives it as a 10 Hz beats.
These beats are possible only within a small range of input frequency differences. If the two frequencies match, the beats disappear and if they differ by more than 30 Hz, they are heard as two different notes. If each frequency is played individually, you will hear them normally, but if played together, you sense the pulsation (binaural beats). So the phenomenon is not acoustic but happens in the brain. For reasons of the physics of sound waves related to human acoustic system, you must use the input frequencies below 1000 Hz.
Binaural Brainwave Audios
You should know that mere passive listening to binaural beats may not work effectively – your ability and willingness to relax and focus attention play important role in determining how effective the binaural beats work on you. Listening to pure binaural beats is not very appealing to most people, so they are often masked by other interesting sounds such as waterfall, flowing ocean waves, flowing river, rain drops, gongs, new age music, etc. In most cases, these sounds completely mask the binaural beats so the listener is totally unaware of them, but the brain, of course, registers them.
Applications of Binaural Beat Audios
The following is highly simplified bits of information on use of different binaural beat frequencies for a few typical applications. The actual recordings may contain multiple frequencies and variations.
Quick Refresher after a busy day: A 15 minute exposure to low alpha, 7– 10 hz, frequencies should work well.
Relaxation: Choose from 5– 10 hz for different levels of relaxation.
Stress Reduction: Any frequencies below 11 hz should relieve stress.
Induce Sleep: Choose from 4– 6 hz for starters, then go below 3.5 hz, and finally settle in the range, 1.5 – 2.5 hz.
Meditation: Choose from 4 – 7 hz. You can either cycle between a few frequencies, or stay at a particular frequency for different results.
Creative Visualization: About 6 hz for sometime and then go up to 10 hz.
Self Hypnosis: Choose from 8 – 10 hz while playing any self-hypnosis tape.
Improved Learning: Choose about 7 – 9 hz while playing any learning tapes (like foreign language tapes, etc.) to increase comprehension. You can also play the audio while studying any written material. Good for students.
Improve ESP / Intuition: The theta range, 4 – 7 hz, helps in this area.
Reaching Higher States of Consciousness: Again the theta range, with daily half hour session.
About the Author
I am a researcher and writer particularly interested in meditation, mind, spirituality, and self-help topics. To read further on brainwave entrainment click here. If you want to try some high quality binaural audio samples visit the site mind-awakening-techniques.
Are there isochronal tones for gnosis?
As with all chaos magick, you need to go into a state of gnosis. What brainwave frequency is gnosis at? Also, is there a website where you can download iso tones for gnosis?
Here’s an app that can generate a variety of tones. Find one that works for you.
http://download.cnet.com/BurninwaveGenerator/3000-2169_4-10711592.html
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