Binaural Beat History
In 1839 binaural beats were discovered, at the time, more a curiosity than a diagnostic tool, binaural beats, and its resulting research sat idle for well over a century and a half. By the 1970s binaural beat research was picked back up, as scientist's realized that without physical intrusiveness, alpha brain waves could be increased.
Binaural beats is the auditory processing of artifacts or sounds that may be perceived by the brain without physical stimulus. Basically, the brain reacts to two perceive tones as if they were one, instead of the two separate tones that are given to each year. These tones must be in a certain range, and also be less than 30 MHz apart, in order to get the brain to respond in the correct manner. Research is trying to determine which tones cause increased alpha brain wave activity, and which tones increase undesirable brain waves.
In 1973 an article was published in The Scientific American, entitled "Auditory Beats in the Brain" by a man by the name of Gerald Oster. This paper was significant in increasing interest in binaural beats. A seminal document, it was based on significant research that had done because it tied together data in regard to the binaural beats and brain waves as well as the neurological and physical effect. Most notably, the increase of alpha brain waves, which increased a relaxed state in the patient.
Oster, spend considerable time gathering evidence of how the binaural beat could be a very powerful, important tool for cognitive as well as neurological research. His initial research considered a cocktail party effect. How animals and humans, are able to single out a specific tone or sound within a proverbial babble of noise. How a person in the middle of a very loud cocktail party, can pick out the sound of their significant other within all of the other tones heard throughout the party. This fact of being able to single tones out, is what was studied originally.
From Oster's original document, medical researchers have dove into and measured brain wave activity during binaural beat sessions. Basically, how the brain combines the two separate tones, and increases brain waves or brain activity in a neurological sense. No physical stimulus makes binaural different from other types of medical procedures.
There are many efforts going on in order to understand exactly how the increasing or decreasing of brain wave activity can help a person heal. Many of the studies are including Parkinson's patients, Alzheimer's patients, mental disorder patients, as well as stress disorder patients. Usually binaural beats are used to increase an alert and yet relaxed state in the patient, which decreases healing time and reconnects brainwave neurotransmitters.
It won't be long before binaural treatments are used in a variety of medical and diagnostic conditions.