Hemi-Sync® Journal 1991-4 (Fall) · 03 The Mysteries of Hemi-Sync® - Beyond Brain Entrainment.pdf

seen in experienced meditators. During the past several years, I have modified and expanded the standard autogenic exercises for our clinical purposes at The Gateway Institute. Last year, I began studying the combined effects of AT and Hemi-Sync by adding some theta to the background of these tapes. Two patients who had listened to these tapes for approximately six weeks underwent EEG testing. Again a simple ABA reversal design was used for these studies. During the baseline phase (A) subjects were asked to simply rest in a recliner. They were then asked to repeat two autogenic phrases for approximately one minute. A final post- treatment baseline was established after this phase. In both cases, subjects’ EEG activities moved from asynchrony to full synchrony. One subject’s EEG showed synchrony in theta, while the other showed synchrony in alpha. Again it was documented that after exposure to Hemi-Sync one can induce synchrony at will once certain verbal associations and cues are established (i.e., autogenic phrases). Conclusions The phenomenon of hemispheric synchronization has been attracting the attention of researchers and clinicians for some time. Of various technologies and procedures which purport to induce bilateral synchrony, Hemi-Sync appears to be the most effective approach, as well as being one of the safest, accomplishing what it claims to do. However, many questions concerning Hemi-Sync remain unanswered. Without a doubt, only well-designed