The Personal Resources Exploration Program or PREP is a personalized Hemi-Sync® auditory-guidance session conducted in a specially designed, secluded cubical. Although PREP sessions have gained a reputation over the last twenty years for providing intense personal experiences, they should not be thought of as a shortcut or as a means to an experience that has
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During the last decade of the 20th Century, our research effort used quantitative methods like laboratory experiments and numerical methods such as statistical modeling. The effort was objective versus subjective and aimed at prediction and control of the supposed neurological underpinnings of the Hemi-Sync® effect versus an explanation and understanding of the phenomenon and
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It has long been known that the potential of human consciousness has been limited only by what has been referred to as the belief system. It also has been known among certain facets of human thought throughout history that such belief system can be altered or modified by various means - usually without conscious
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Exploring Consciousness with the Hemi-Sync Process
F. HOLMES ATWATER
Research Director
The Monroe Institute, 62 Roberts Mountain Road, Faber, VA 22938-2317
Abstract — Altering consciousness to provide a wide range of beneficial effects (stress-reducing relaxation, improved sleep, intuitive, creative, meditative, healing, and expanded-learning states, out-of-body experiences, etc.) necessarily involves either changing levels of arousal or cognitive content or
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Cortical brain wave patterns and their related arousal levels are regulated by the brainstem’s reticular formation stimulating the thalamus and cortex. The extended reticular-thalamic activation system (ERTAS) interprets and reacts to information from internal stimuli, feelings, attitudes, and beliefs as well as external sensory stimuli by regulating cortical arousal levels. In the ERTAS
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Two decades ago it was assumed that the mechanism behind the consciousness-altering effects of Hemi-Sync was some how related to something called the frequency-following response. I wrote and spoke of this myself many times. Hypothetically, prolonged exposure to binaural-beat stimuli influenced brainwaves to the point of altering ongoing EEG through entrainment of the
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F. Holmes Atwater
Current understanding of the reticular formation suggests a neural mechanism responsible for the involuntary regulation of cortical levels of arousal (sometimes referred to as levels of consciousness). The reticular formation manages rhythmic bursts of neurotransmitters (noradrealine, serotonin, and acetylcholine) to and from the cortex via ‘projections’ and thereby regulates cortical arousal.
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There is a supposition here that real-time self-adjustment devices would allow binaural frequency adjustments based on user’s experiential subjective feelings or opinions. The whole issue here is an axiomatic misunderstanding, a hypothetical scenario gone awry. The false assumption is that, changing the binaural-beat array of frequencies directly alters the perceptual experience of the listener and,
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Subject: Comments on the article — Human Auditory Steady State Responses to Binaural and Monaural Beats by D.W.F. Schwarz and P. Taylor, published in Clinical Neurophysiology 116 (2005) 658–668.
This is a very well written, great article.
Back in the 1990s the Institute published several papers addressing the neurological effects of binaural beating. Rather than incessantly repeating
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D. Brian Brady
Northern Arizona University
May 1997
ABSTRACT
Six participants varying in degree of hypnotizability (two lows, two mediums, and two highs) were exposed to three sessions of a binaural-beat sound stimulation protocol designed to enhance theta brainwave activity.  The Stanford Hypnotic Susceptibility Scale, Form C (SHSS:C) was used for pre and post-stimulus measures of hypnotic susceptibility.  Time-series
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by Dale S. Foster, PhD
The purpose of this study was to determine the effects of alpha-frequency binaural-beat stimulation combined with alpha biofeedback on alpha-frequency brain-wave production and subjective experience of mental and physical relaxation. The study compared the alpha brain- wave production and subjective report of mental and physical relaxation of four groups, each of
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Anaesthesia, Vol. 54, No. 8, pp. 769-773, 1999 ©1999 Blackwell Science Ltd.
P. Kliempt,1 D. Ruta,2 S. Ogston,3 A. Landeck,4 and K. Martay5
1 Research Assistant, 2 Senior Lecturer, and 3 Lecturer in Statistics, Department of Epidemiology and Public Health, Ninewells Hospital, Dundee DD1 9SY, UK 4 Senior House Officer, and 5 Resgistrar, Department of Anaesthetics, Queen
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From a document published in “Proceedings of the IANS 11th Forum on New Arts and Science”
©2001 by the International Association on New Science, 1612 Windsor Court, Fort Collins, CO 80526
Abstract from Binaural Beats and the Regulation of Arousal Levels for IANS
F. Holmes Atwater

Abstract
This paper describes two studies. A first study measured the neural accommodation (changes
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JAMES D. LANE,* STEFAN J. KASIAN,* JUSTINE E. OWENS** AND GAIL R. MARSH*
*Departments of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, North Carolina; and
**Center for the Study of Complementary and Alternative Therapies, School of Nursing, University of Virginia, Charlottesville, Virginia
Received 18 July 1997; Accepted 29 August 1997
Binaural auditory beats affect vigilance performance and
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ABSTRACT
The role of music and Hemi-Sync has been explored in the rehabilitation of 20 developmentally disabled children. The children ranged in age from 5 months to 8 years with an average age of 2 years. Within the broad category of developmental disability the children had received specific diagnoses of cerebral palsy (16), mental retardation
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A Study of Cognitive Substance Abuse Treatment With and Without Auditory Guidance
by Gilbert O. Sanders, EdD, and Raymond O. Waldkoetter, EdD
At the time of this study Gilbert Sanders was in charge of the Chemical Dependency Unit, Mount Edgecumbe Hospital, Sitka, Alaska. As a counseling psychologist he had extensive experience with the substance abuse issues confronted
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F. Holmes Atwater
Abstract from the Proceedings of the Eighth International Symposium on New Science© 1997 the International Association for New Science
Abstract
Altering consciousness to provide a wide range of beneficial effects (stress-reducing relaxation, improved sleep, intuitive, creative, meditative, healing, and expanded-learning states, etc.) necessarily involves either changing levels of arousal or
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Journal of Scientific Exploration, Vol. 11. No. 3, pp. 263-274, 1997 0892-3310/97© 1997 Society for Scientific Exploration
F. HOLMES ATWATER
Abstract
Exposure to binaural beats in an environment of restricted stimulation coupled with a guidance process can safely provide access to and experiences in many propitious states of consciousness. This method requires a unique combination of well-understood psycho-physiological
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by George Guilfoyle, Ph.D., and Dominic Carbone, Ph.D.
When each ear is presented simultaneously with a pure tone signal, and these tones differ by only a small amount (from 1 to 25 Hz), they continually mesh in and out of phase with each other to produce a binaural beat. According to Atwater (1996) “the binaural beat
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Spring 1996
by Todd J. Masluk, MA, Ed.M.

Background
A revolution is occurring in consciousness expansion, the development of altered states, and psychospiritual growth (Walsh & Vaughan, 1993). At the forefront of this movement is an array of “neurotechnologies.” I These neurotechnologies are one of the newest hopes of promoting psychological growth. Many claims have been made
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by James Akenhead
As a licensed professional counselor, James Akenhead has been a public and private sector organizational consultant for fifteen years. A career educator for thirty years, with twenty four years of service as a school superintendent, he holds five degrees and has published numerous articles on leadership, team building, management, and human relations. Dr.
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By Richard Cauley Kennerly
Published in the Hemi-Sync Journal Summer 1996
ABSTRACT
Beta frequency binaural-beat audio signals were utilized to investigate facilitation of human performance on two memory tasks and two memory related tasks. Subjects were 50 college students randomly assigned with a double-blind methodology to the control or experimental groups. The control group listened to instrumental music.
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The Hemi-Sync® Phenomenon: In Search of Empirical Theories
by M. R. Sadigh, PhD, Director of Psychology, The Gateway Institute
Three years ago, with much “healthy” scientific doubt I began studying the effects of Hemi-Sync on electrocortical activity of human subjects. Study after study, I have been impressed by the effectiveness and the versatility of this audio technology
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The Effects of Hemi-Sync® on Electrocortical Activity:
A Review of Three Empirical Studies by M. R. Sadigh, PhD, Director of Psychology, The Gateway Institute
and P. W. Kozicky, MD, Founder and Director, The Gateway Institute

We wish to dedicate this paper to Robert A. Monroe: a man whose love and compassion for humanity have forever changed and expanded
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