(Hemi-Sync® Journal, Vol. X, No. 2, Spring 1992) THE HEMI-SYNC® PHENOMENON: IN SEARCH OF EMPIRICAL THEORIES by Mohammad Sadigh, Ph.D. Introduction 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 to guide and entrain the brain to enter a variety of states of consciousness. These days, brain entrainment modalities are in vogue. Unfortunately, however, in my view, entrepreneurs and business people selling these gadgets and tapes seem to benefit more from them then the consumer. Therefore, it is quite refreshing to know that there is a brain-entrainment modality that actually works. In fact, I am convinced that Hemi-Sync goes beyond “blind” entrainment and consequently avoids some of the danger of underdeveloped technologies that clearly have the potential to do harm to those using them. Although there is a wealth of clinical data with regard to the beneficial effects of Hemi-Sync, there is a lack of empirical theories explaining the phenomenon. And yet without sound and testable theories, we are liable to lose momentum in our research and clinical work, and something that we know has great value is likely to be considered a fad, a gimmick, something
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Hemi-Sync® Journal 1992-2 (Spring) · 2 The Hemi-Sync® Phenomenon - In Search of Empirical Theories.pdf
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unscientific. As Louis Pasteur, the great scientist once stated to a group of medical students, “Without theory, practice is but routine born of habit. Theory alone can bring forth and develop the spirit of invention. It is you especially who are obliged not to share the opinion of those narrow minds who reject everything in science which has no immediate application” (in Reik, 1948, p. ix). Hemi-Sync has many applications, and there are even more applications ready to be unveiled by us as we attempt to construct now theories. Based on my empirical research, I wish to propose two theories of Hemi-Sync, in this paper. But before introducing these theories, by merely reflecting on the obtained data and observations in our laboratory, I wish to address a few questions raised in the scientific community with regard to the effectiveness of Hemi-Sync. Dr. Lester Fehmi one of the foremost authorities in the field of applied psychophysiology and brain research once stated that he believed Hemi-Sync could drive the brain to enter certain states, but at the same time he emphasized, “...but it doesn’t teach you how to got there. It’s like a pill; in a way you don’t know how the pill works... and you may end up somewhat refreshed but if you had the option to got on a device that would allow you to learn to create the permissive conditions for the creation of this synchrony, then you’d be in much better shape, because then you could apply