Relaxation and brain wave manipulation
Binaural beats
Binaural
beats or tones were discovered in 1839 by Heinrich Wilhelm Dove but
didn't gain much public awareness until the late twentieth century based
on claims that the effect could influence brain waves and induce
relaxation, creativity, meditation and other desired effects. the effect
on brain waves depends on the frequency produced by the difference in
auditory frequencies. for example if 510 hz is played in one ear and
500hz played in the other the brain would perceive 10hz and the produced
frequency of the binaural beat would be 10 hz and activate and
reinforce the area affected by 10hz.
The brain makes a phenomenon that results in low amplitude in areas
of the brain when two sounds at different tones at slightly different
frequencies are introduced separately, one to each ear using headphones
or similar devices capable of delivering exact sounds at once. This
effect is altered if used through speakers because of the difference in
distance and a slight doppler effect that changes sound according to
distance. Research shows that the difference between the sounds must be
under 1,000 hertz for the beat to be noticeable but less than 30 hertz
for there to be a noticeable effect.
There have been claims regarding the use of binaural beats to simulate
the effects of recreational drugs, help memorize, stop habits, tackle
dysfunctions and improve athletic performance. in a blind study 7hz was
found to enhance meditation while 15hz harmed focus.
This may seem somewhat deep, but hang in there.human hearing is
20-20,000hz. Human brainwaves are below 40 hz down to about 4 hz or
less. human brain waves at 40 hz and below have been produced by
binaural beats and measured scientifically. When the beat frequency is
in the range of the delta,theta,beta,alpha, or gamma range of brainwave frequencies, the brainwaves entrain to or move towards the beat frequency.
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