Theta Brainwaves Without Hemi-Sync®                
 Theta Brainwaves With Hemi-Sync®                                                                                      
These topographic brainwave maps illustrate the state-changing potential of the Hemi-Sync®


What is Hemi-Sync®?
Pioneered by researcher and inventor Robert Monroe,

Hemi-Sync, short for hemispheric synchronization, is a scientifically and clinically proven audio-guidance process that works quite simply by sending different sounds (tones) to each ear by stereo headphones.

The two hemispheres of the brain then act in unison to “hear” a third signal--(A Binaural Beat) fthe difference between the two tones. This is not an actual sound, but an electrical signal that can only be perceived within the brain when both brain hemispheres are working together.

The result is a focused, whole-brain state known as hemispheric synchronization or “Hemi-Sync," an optimal condition for improving human performance.

Specific combinations of Hemi-Sync signals, for example, can help individuals achieve laser-like focus and concentration. Different Hemi-Sync signals are used to facilitate profound relaxation, expanded awareness or other desired states.

Binaural Beats
The sensation of auditory binaural beats occurs when two coherent sounds of nearly similar frequencies are presented one to each ear with stereo headphones or speakers.

When the brain integrates the two signals, it produces a sensation of a third sound called the binaural beat.

Binaural beats originate in the brainstem's superior olivary nucleus, the site of contralateral integration of auditory input. The binaural beat is neurologically conveyed to the reticular formation which uses neurotransmitters to initiate changes in brain-wave activity.

Depending on the intended goals, Hemi-Sync products combine music, verbal guidance or subtle sound effects with Hemi-Sync to strengthen its effectiveness. Users remain in total control as these recordings do not contain subliminal messages.*

Hemispheric synchronization occurs naturally in daily life but typically only for random, brief periods of time. Hemi-Sync can assist individuals in achieving and sustaining this highly productive, coherent, brain-wave state.

Monroe’s work inspired an entire industry of mind/brain products. After decades of research, and thousands of lab sessions, the extraordinary Hemi-Sync process remains unparalleled in its ability to assist us in harnessing our human potential.

There are now scores of tapes and CDs incorporating Hemi-Sync for a wide variety of wellness applications.