Jul 06 2010
Getting To Know Binaural Beats
So you may have heard information about binaural beats and the benefits they can have on individuals, such as weight loss assistance, increased learning, creativity, and increased confidence. However, where exactly did binaural beats come from, what are they, and are they effective?
In the year 1839, a person by the name of Heinrich Wilhelm Dove discovered the curious phenomenon of binaural beats. When different auditory impulses (“tones”) are played to both ears at once but are different in frequency, the difference in the Hz (hertz, or cycles per second) will be presented as what is referred to as a “binaural beat.”
There are multiple ways this beat could be perceived. In order to achieve a 10 Hz binaural beat, two different tones are required to be played. One tone, for example, could be played at 150 Hz to one ear, and another at 160 Hz in the the opposite ear. The outcome is a variation of 10 Hz, which creates the “beat” that is perceived.
The most vital part to note is that these are perceived by the brain, not actually “heard” as it may sound. These are responses in parts of the brain stem which are delivered from the superior olivary nucleus of each half of the brain. What makes this so vital is that the “beats” that are made actually cause the two hemispheres of the brain to sync with one another.
These binaural beats are not just focused on individuals and have been used on a bigger scale. One organization, The Monroe Institute, heavily markets this type of treatment, which has been utilized in hospitals and other areas. Several benefits have been found from utilizing the binaural beats, which includes less need for pain medicine, speedy recuperation, stability of blood pressure, and other benefits.
In 1999, Anesthesia decided to do a study. In order to disprove or prove this idea, a study was performed that involved three different tapes that were created for the subjects to listen to. The individuals were each undergoing a different procedure, and all were administered a drug called fentanyl. Fentanyl is usually utilized for chronic pain, or chronic breakthrough pain. The three tapes had a recording of either classical music, a product named “Hemisync,” or a tape with no audio. It was discovered that those listening to the Hemisync tape needed much less fentanyl when compared to the other two tapes.
Luckily, a study was done and has been released that explains to the public that binaural beats can truly be a benefit to those who want to use them. For additional reading, please refer to the study “Hemispheric Synchronized Sounds and Intraoperative Anesthetic Requirements.
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