6. The Biofeedback Explanation

Because of biofeedback research (including Johns Hopkin’s researcher John Basmajian’s conclusive study of subjects consciously firing off single motor–unit neurons), we now know that humans can learn to exercise conscious control over virtually every cell in their bodies. Processes long thought to be involuntary, such as the rhythm and amplitude of our brain waves, healing, blood pressure, the rate or force of heart contractions, respiratory rate, smooth–muscle tension, and the secretion of hormones and neurotransmitters are now thought to be controllable. The way biofeedback machines work is by enhancing concentration’, by focusing on a single, subtle change in the body, which is being amplified by the machine, we are able to shut off our awareness of the external environment. This shutting–off of external stimuli is exactly what the floatation environment does best – almost as if in an "organic" biofeedback machine, in the tank every physical sensation is magnified, and because there is no possibility of outside distraction, we are able to relax deeply and focus at will upon any part or system of the body.