| Hemi-sync is short for hemispheric synchronization. Developed by
the Monroe Institute, the process uses pulses of sound to help create
simultaneously an identical wave form in both brain hemispheres.
Originally, the Institute was granted a patent in 1975 based upon
the use of such sound pulses to induce a frequency following response
(FFR) in the human brain. This simply means that when your ear hears
a certain type of sound signal, it tends to respond or "resonate"
with similar electrical signals in the brain. Knowing that various
electrical brain waves are indicators of states of consciousness
(such as awake or asleep), you thus can listen to a similar sound
pattern and it will help you be in the desired state of awareness.
Hemi-sync takes the process an important additional step. Each ear
sends its dominant nerve signal to the opposite brain hemisphere,
following an X pattern. By sending separate pulses to each ear (using
headphones to isolate one ear from the other), the halves of the
brain must act IN UNISON to "hear" a third signal, which is the
difference between the two signals in each ear. For example, if
you hear a sound measuring 100 in one ear and another signal of
125 in the other, the signal your whole brain will "generate" will
be 25. It is never an actual sound, but it is an electrical signal
that only can be created by BOTH BRAIN HEMISPHERES ACTING AND WORKING
TOGETHER.
That's Hemi-sync. If the "25" signal (above) is one that produces
a certain type of consciousness, then the whole brain - both
hemispheres - is focused in AN IDENTICAL STATE OF AWARENESS AT THE
SAME TIME. Most important, the condition can be changed at will
by changing the sound pattern. It also can be learned and recreated
from memory when the need arises.
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