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The neurons in the brain communicate by way of electricity. The types of electrical activity are known as "brainwaves." Depending on what the person is doing, there are 5 main types.
Brainwaves Can Be Stimulated
The existence of brainwaves was discovered in 1930 by the inventor of the EEG, Hans Berger. After that, multiple studies found that it is possible to stimulate specific brainwaves by using sound.
Brainwaves can be stimulated by playing a rhythmical sound. When the rhythm is close to the brain's own brainwave frequencies, the brain responds by synchronizing its brainwaves to the rhythm of the sound. This is called the Frequency Following Response (FFR).
What exactly are the binaural beats?
When two tones are played together and they have waveforms that are very close to one another, they subtract and add to each other. As a result, they are perceived as a pulse, or a beat.
Binaural beats use this principle. Two tones are played - one in each ear. These two tones are combined in the brain itself. The result is e beat. When the beat frequency is close to any of the brainwaves, the brain responds by synchronizing its own cycles to the beat. In this way, binaural beats can help you to relax, concentrate, fall asleep or release the stress.
Binaural Beats Are Old School. Isochronic Tones Are Far More Effective.
Binaural beats are pleasant but they have been found not to be very effective. A new, much more reliable method for brainwave therapy is isochronic tones.
Reasons why binaural beats are less effective than isochronic tones:
- They require headphones - a slightly different tone (waveform) has to be played in each ear.
- The brain constructs the beat from the two waveforms but the volume of the beat is only about 3 decibels. This is about a tenth of the volume of a whisper. Because of that, they don't produce a strong response.
- They don't allow stimulation of each hemisphere individually as both ears produce a single beat.
What Are the Isochronic Tones?
Isochronic tones are evenly spaced pulses that turn on and off at a specific rate per second (specific frequency). If you listen to isochronic tones, you will hear the pulsing tones.
Unlike binaural beats, the beat is heard, instead of being constructed in the brain. This has different advantages:
- Much stronger neural response
- Headphones are not needed, unless the two hemispheres are stimulated differently.
- This method allows for stimulating the two hemispheres separately which allows much wider range of therapy and mental improvement.
All our recordings use isochronic tones.
Stimulating the Two Hemispheres Separately
Measurements with EEG show that there are different mental or emotional problems that are caused by brainwave imbalances. People who have trouble concentrating, for example, benefit greatly from stimulating the left hemisphere with low and high Beta variations, while stimulating the right hemisphere with Alpha waves. This allows increased alertness and concentration (left hemisphere is logic), while the right hemisphere (emotions) is kept calm - no frustration or anxiety.
Another example is depression: Depressed people have a distinct brainwave pattern - too much activity in the right hemisphere and too little in the left one.
Different Target States Are Possible with Brainwave Therapy
Measurements with EEG have found that there are different brainwave nuances for different states.
These states can be achieved easily with brainwave therapy.
Many Brainwave Recordings Out There - Little Effect or Worsening?
With the advancement of technology, a lot of people have put brainwave therapy recordings on the internet. The problem is that it brainwave therapy requires a lot of knowledge. Most recordings on youtube, for example, use Theta brainwaves. Depressed people have overabundance of Theta. If depressed people listen to recordings with Theta brainwaves, they are actually making their condition worse. While brainwave therapy is generally safe, there are a lot of nuances that can make it effective, potentially harmful or non-effective.
The Main Brainwaves and Their Nuances
It is not the same whether you use high Beta or low Beta recording. If you haven't practiced and you are unprepared, high Beta can cause anxiety and nervousness. There are also specific brainwave frequencies that are found to be helpful for different problems. Sensorimotor Rhythm (SMR), for example is between 13 and 15 hz. Studies have shown that it is highly effective when treating insomnia.
The Schumann Resonance frequency of 7.83 is another example. It has very calming effect and studies show that it results in more blood flow in the brain than any other frequency.
In most cases, it is not stimulating a specific main brainwave that is helpful. It is the different combinations and variations that target different goals or resolves. We take pride in our state of the art precision and effectiveness of using different nuances, depending on the goal.
Can Anyone Use Brainwave Therapy?
There is a small group of people who should not use brainwave therapy. Because of the repeating tones, they should not be used by epileptics or people using pacemakers. Also, brainwave therapy is not recommended for young children, as their brainwave spectrum is not fully developed yet.