Monroe Institute
Language Translations:
"The greatest illusion is that mankind has limitations." - Robert Monroe







"One Gateway alumnus, the head of a Zen Buddhist Temple...believes that Gateway students can reach meditation states in a week that took him years of sitting." - The Wall Street Journal

Hemi-Sync® Audio Technology

Theta Brainwaves
Without Hemi-Sync®

  Theta Brainwaves
With Hemi-Sync®
These topographic brainwave maps illustrate the state-changing potential of the Hemi-Sync® process. Click here to see the dynamic changes in the brainwave patterns from the initial state to the final Hemi-Sync® state. With Hemi-Sync® you can safely alter your brainwave patterns and experience enhanced mental, physical, and emotional states.

What is Hemi-Sync®?

Hemi-Sync® is a trademarked, state-of-the-art audio technology based on the natural functioning of the brain that encourages coherent brainwave activity. Our brains produce waves or patterns of electrical activity. Different patterns indicate different mental states, such as rest (occipital Alpha), deep sleep (central Delta), meditation (central and frontal Theta), physical activity (wide-spread Beta). Hemi-Sync®'s audio binaural beats influence these brainwave patterns and in concert with other components of the Hemi-Sync® process provide experiences in focused states of consciousness.

Used at The Monroe Institute, Hemi-Sync® becomes part of an entire learning process ; a combination of multiplexed audio binaural beats and pink sound (or music), verbal suggestion, relaxation exercises, guided imagery, group dynamics, and an educational curriculum all carefully crafted to engender first-person experiences of focused states of consciousness. Hemi-Sync® influences brainwave patterns and alters states of arousal. Hemi-Sync® programs provide participants with the opportunity to experience focused states of consciousness.

Hemi-Sync® does not employ the use of subliminal suggestions. Hemi-Sync® is designed for listening through stereo headphones or properly placed stereo speakers. The versatility of Hemi-Sync® gives the basic technology an almost limitless range of applications for mental, physical, and emotional well-being. The technology simply and effectively allows you to involve your own total capabilities and direct them as you choose. It can be compared to a powerful software program that facilitates extraordinary levels of performance and productivity, guided by the intention and desire of the listener.
How Hemi-Sync® Alters States of Consciousness

In addition to verbal instructions, this auditory-guidance process involves carefully constructed blends and sequences of stereo sound patterns designed to evoke beneficial brainwave states through neurological mechanisms.

Right and left auditory input is combined in the brainstem's superior olivary nucleus and routed to the reticular formation that, in turn, uses neurotransmitters to initiate changes in neurological activity in the thalamus and cortex.

  • While many Hemi-Sync® products contribute to wellness, they are not intended to replace medical diagnosis and treatment. DO NOT listen to Hemi-Sync® while driving or operating heavy equipment, or with other devices that may influence brain-wave activity. If you have a tendency towards seizures, auditory disorders, or adverse mental condition(s), DO NOT listen to Hemi-Sync® without first consulting your physician. In the unlikely event that you experience any unusual physical or mental discomfort, immediately discontinue use. DO NOT reproduce Hemi-Sync products or use with Dolby® or other noise-reduction systems. Doing so will diminish the effectiveness of the Hemi-Sync® signals. ALL WARRANTIES WHETHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED. .
Learn about binaural beats

See also the Hemi-Sync® Frequently Asked Questions (FAQ) list.

What Hemi-Sync® users say:

Hemi-Sync® tapes catalyze necessary changes I have been wanting for some time. - J.K. Metzingen, Germany

I used to have trouble sleeping. No longer! - C.G., Raleigh, NC

These tapes have made a positive impact on my life. - C.R., Pittsburgh, Pennsylvania

Immediate pain control results. Thanks a lot! - V.S., Oxnard, CA

I have been amazed at my developing intuition. - B.B., Ontario Canada

I have greater clarity of thought and increased creativity. - J.S., Decatur, TX

See also the more detailed reports of feedback on Hemi-Sync®.

The versatility of Hemi-Sync® makes it valuable for an almost limitless range of applications. When you know what you want to do; Hemi-Sync® effectively concentrates the inherent resources of your mind, brain, and body to accomplish your purpose.

Emotional Processes
  • improve self esteem
  • foster self-confidence
  • moderate hyperactivity
  • overcome shyness
  • develop spontaneity
  • achieve serenity
  • surface blocked memories
  • ease social interactions
  • access feelings
  • eliminate self-sabotage
  • overcome irritability
  • improve self-control
Sleeping and Using Sleep Time
  • overcome sleep disorders
  • reduce need for sleep medication
  • dream recall
  • facilitate lucid dreaming
Dissociative and Transcendent Experiences
  • deepen meditation
  • facilitate awareness
  • access intuition
  • move beyond the physical
  • explore focused states of consciousness
Productivity and Mental Performance
  • reduce exam tension
  • cope with interruptions
  • eliminate mental wandering
  • learn foreign languages
  • increase productivity
  • counter A.D.D. and A.D.H.D.
  • learn musical instruments
  • master challenging subjects
  • improve classroom atmosphere
  • recover lost abilities
  • integrate sensory input
  • stimulate mental receptivity
  • improve artistic ability
  • enhance self-expression
  • improve reading comprehension
  • overcome mental slowdown
  • handle pressure
  • improve clarity
Pregnancy and Childbirth
  • make up for missed sleep
  • ease physical stress
  • counter nausea
  • facilitate recovery
  • energize breathing

Order Hemi-Sync® tapes & CDs with your Visa/MasterCard/American Express from

The Monroe Institute
365 Roberts Mountain Road
Faber, VA 22938-2317
Toll free - (866) 881-3440
(434) 361-1252
FAX: (804) 361-1237 - E-Mail

The Monroe Institute is a 501(c)3 nonprofit education and research organization devoted to the exploration of human consciousness. Over the last 30+ years thousands of people have attended TMI’s life-enhancing residential programs, and millions worldwide have benefited from Hemi-Sync® learning exercises on audio cassette and compact disc. TMI’s methodology does not contain any dogma, nor does it espouse any particular belief system, religion, or political or social stance. Because our methods are non-invasive, the participant is always exercising individual free will.

Hemi-Sync® is a registered trademark of Interstate Industries Inc. © 2004 by The Monroe Institute. All rights reserved.

The Monroe Institute | 365 Roberts Mountain Road | Faber, Virginia 22938 | 1-866-881-3440 | 434-361-1252 |

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