Binaural Beats
Binaural beats were originally discovered
in 1839 by physicist Heinrich Wilhelm Dove. He discovered
when signals of two different frequencies are presented
separately, one to each ear, the brain detects the phase
variation between the frequencies and tries to "reconcile"
that difference.
In doing so, as the two frequencies mesh in and out of phase,
the brain creates its own third "phantom" signal — a binaural
beat — equal to the difference between those two frequencies.
For example, if a frequency of 100 Hz is presented to the left ear, and a frequency of 105 Hz is presented to the right ear, the brain "hears" a third frequency pulsing at 5 Hz, the exact difference between the two frequencies.
Research has proven that introducing a binaural beat will
cause the brain to begin resonating in tune with the frequency
of that beat. This is called the "Frequency Following
Response" and was thoroughly researched and tested
in 1973 by biophysicist Gerald Oster at Mount Sinai Hospital
in New York City. His research on binaural beats and the
frequency following response was published in Scientific
American and paved the way for further development
in the area of auditory stimulation to enhance brain functioning.
Since that time, binaural beat technology has been endorsed by scores of doctors and scientists around the world.
Next - The Frequency Following Response
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