Binaural beats are being adequately studied for a variety of reasons, primarily due to the possible effects it can have for patients, and in an attempt to better understand the relationship between neural activity and sensory perception .
They have also been used to understand complex neurological phenomena, such as the way the brain communicates with itself . A study of EEG data regarding binaural beats showed that there is a change in brain wave patterns when exposed to them.
The beats or binaural rhythms are a brain resonance process, stimulating each ear with a slightly different frequency from each other. By entering these two sounds separately, a third frequency is created in the brain equal to the difference between the two initial frequencies.Thus, if we hear a frequency of 450 Hz from one ear and 457 Hz from the other, the difference is a constant 7 Hz oscillator.
This difference is the binaural rhythm, which is not actually a true sound in the external environment, but is rather a neurological signal perceived within the brain by the two hemispheres working in unison. Taking advantage of the phenomenon known as «Brain Wave» we can stimulate the brain to work within the frequency we want, using this technique.