Patent No. 4834701 Apparatus for inducing frequency reduction in brain wave
Patent No. 4834701 Apparatus for inducing frequency reduction in brain wave (Masaki, May 30, 1989)
Abstract
Frequency reduction in human brain wave is inducible by allowing human brain to perceive 4-16 hertz beat sound. Such beat sound can be easily produced with an apparatus, comprising at least one sound source generating a set of low-frequency signals different each other in frequency by 4-16 hertz. Electroencephalographic study revealed that the beat sound is effective to reduce beta-rhythm into alpha-rhythm, as well as to retain alpha-rhythm.
Notes:
Apparatus for inducing frequency reduction in brain wave. Filed July 1985, granted May 1989. Entrainment device and method using audible sound. Does not go into programming with it as it is a relatively short patent.
FIELD
OF THE INVENTION
The present invention relates to an apparatus to induce frequency reduction
in human brain wave.
DESCRIPTION OF THE PRIOR ART
The human brain wave produced when the five sensory organs are in action is
called as "beta-rhythm", a brain wave of 15 hertz or higher, which is reduced
to the "alpha-rhythm", a brain wave of 7 to 14 hertz, by mental relaxation.
One may exhibit an amazing ability when one's brain wave is in alpha-rhythm.
In such state, a great ability may be exhibited in learning, researching, and
making invention.
So far no effective means to induce frequency reduction in human brain wave
was proposed.
SUMMARY OF THE INVENTION
Accordingly, one general object of the invention is to provide an apparatus
to induce frequency reduction in human brain wave.
Still more specific object of the invention is to provide an apparatus to allow
human brain to perceive a beat sound within a prescribed frequency range.
These and other objects as may become apparent hereafter have been attained
with an apparatus, comprising means for generating a pair of low-frequency signals;
said signals being different in frequency by 4-16 hertz.
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An electroencephalographic study
using volunteers confirmed that 4-16 hertz beat sound is most effective to lower
the frequency of human brain wave to 8-14 hertz alpha-rhythm. I found that such
beat sound is also effective to retain alpha-rhythm, as well as to bring human
brain wave from either "theta-rhythm" or "delta-rhythm" into alpha-rhythm.
Having described the present invention as related to the embodiments shown in
the accompanying drawings, it is my intention that the invention is not limited
by any of the details of description, but rather be construed broadly within
its spirit and scope as set out in the accompanying claims.
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