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Hemi-Sync Audio technology.

Hemi-Sync Audio Technology, developed at the Monroe Institute (Faber, Virginia), uses inaudible sound frequencies called binaural beats to induce changes in brain wave activity. Brain waves tend to synchronize with visual, sound, and/or electrical impulses, resonating to the same frequency as the transmitted pulse. Binaural beats in the delta frequency range promote deep sleep. Those in the theta range foster deep meditation and REM sleep, and frequencies in the alpha wave range encourage relaxation. Beta waves occur during analytical thinking. A predominance of beta waves can also indicate ongoing tension and anxiety. Using Hemi-Sync Audio Technology to shift brain waves from the high-alert beta waves to the relaxed alpha-theta range gives the body a much-needed, therapeutic rest.

The brain itself creates binaural beats when exposed to two sound frequencies that differ very slightly. For example, when using Hemi-Sync Audio Technology, a frequency of 100 Hz is piped into one ear via headphones and a frequency of 107 Hz is directed to the other ear. The brain uses the difference to make an inaudible 7 Hz binaural beat. (The ear cannot detect sound waves less than 20-30 Hz.) A binaural beat's effect can be tracked with an electroencephalogram as the central nervous system increases production of brain-wave frequency to match the binaural beat.

The Monroe Institute has embedded binaural beats into verbal relaxation tapes as well as into music. Embedding the beats into music appears to be more effect because music itself synchronizes the brain's left and right hemispheres. Clinicians have conducted small studies using Metamusic with Hemi-Sync to help children with neurological, developmental, and behavioral problems. A 1996 study tested music alone and the same music combined with Hemi-Sync technology on 20 children (ages 5 months to 8 years). These children had severe feeding and prespeech problems due to cerebral palsy, mental retardation, autism, and/or uncontrolled seizure disorder. The music had a regular rhythm and a tempo of 60 beats per minute. It was played primarily during therapy sessions and at bedtime to encourage sleep. Two of the children had negative reactions to the Hemi-Sync music, displaying increased distractibility and hyperirritation. (Not all children can tolerate Hemi-Sync technology. This and other studies report that some children respond negatively to the technology. They become very irritable and distracted, fidget, and/or start screaming.) Metamusic had little effect on 3 of the 18 children who tolerated Hemi-Sync music. The remaining 15 showed improved ability to process and integrate multiple sensory information (instead of becoming hypersensitive and overloaded), improved attention and focus, improved breathing patterns and muscular coordination, reduced anxiety, and improved sleep. For 13 of this group, "significant changes occurred ... within the first two Hemi-Sync sessions." In comparison to no-music sessions, noticeable behavior changes occurred when music and when Hemi-Sync music played in the therapy environment. Study author Suzanne Evans Morris, PhD, said, "... the degree of change and permanence of change was more pronounced when Hemi-Sync was combined with the music." She says that Hemi-Sync's effect appears to be cumulative.

Barbara Bullard, a professor of speech and professional member of the Monroe Institute since 1989, says: "A key ingredient for triggering [the body's ability to self-heal] is to lie down in a synchronized brain-wave state of alpha/theta for at least five to twenty minutes. This is exactly what occurs for most of us when we use Metamusic." Hemi-Sync's Sleeping Through the Rain encourages restful sleep in most children and adults. Remembrance, Einstein's Dream, Indigo for Quantum Focus, Seasons at Roberts Mountain, and Baroque Garden foster a coherent, alert brain state conducive to learning. Bullard credits these recordings with letting her son, diagnosed with ADD, succeed in school without Ritalin. Inner journey, Sleeping Through the Rain, and Cloudscapes have been used to relieve pain in hospice patients.

In addition to Hemi-Sync Audio Technology, binaural beat generators are available from various companies. Reson-8, for example, contains eight audio programs: three for inducing alpha waves, three for theta waves, and two for delta waves.

Bullard B. METAMUSIC [R]: music for inner space, Journal (Monroe Institute). Summer/Fall 2003. Available at: www.monroeinstitute.org/journal/metamusic-music-for-inner-space. Accessed December 8 2010.

Filimon RC. Beneficial subliminal music: Binaural Beats Hemi-Sync and Metamusic. Recent Adv Acoust Music. Available at: www.wseas.us/e-library/conferences/2010lasi/AMTA/AMTA-18. pdf. Accessed November 23, 2010.

Morris SE. Music and Hemi-Sync[R] in the treatment of children with developemental disabilities. Open Ear. 1996;2:14-17. Available at: www.incrediblehorizons.com/hemi-sync-education. htm#DEVELOPMENTALDISABILITIES. Accessed December 8, 2010.

Morris SE. Opening the door with Metamusic[1M]. Reprinted from: Schneck DJ, Schneck, JK. Music in Human Adaptation. Blacksburg, VA: Virginia Tech Press; 1997:167-181. Available at: www.new-vis.com/fym/pdf/papers/learing.11.pdf.Accessed December 8, 2010.
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Title Annotation:Shorts
Author:Klotter, Jule
Publication:Townsend Letter
Geographic Code:1USA
Date:Feb 1, 2011
Words:787
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