Psycho acoustics is the scientific study of the perception of sound, and it has fueled researcher’s paths to better understand how it can be used as medicine. For instance, in 1973, Dr. Gerald Oster, a medical doctor and biophysicist, proved, in his research paper, “Auditory Beats in the Brain,” how sound affects the how the brain absorbs new information, controls mood, sleep patterns, healing responses, and more, and how quickly. Thus, specific frequencies of sound and music can be used to generate neurotransmitters such as serotonin.
To understand the fundamentals of sound in healing, we must first understand our brain waves. The nucleus of our thoughts, emotions, and behaviors, is the communication between neurons. Brain waves are generated by way of electrical pulses working in unison from masses of neurons interacting with one another. Brain waves are divided into five different bandwidths that are thought to form a spectrum of human consciousness.
Research shows that different frequencies presented to each ear through stereo headphones… create a difference tone (or binaural beat) as the brain puts together the two tones it actually hears. Through EEG monitoring the difference tone is identified by a change in the electrical pattern produced by the brain. For example, frequencies of 200 Hz and 210 Hz produce a binaural beat frequency of 10 Hz (The difference in 210 Hz and 200 Hz is 10 Hz). Monitoring of the brain’s electricity (EEG) shows that the brain produces increased 10 Hz activity with equal frequency and amplitude of the wave form in both hemispheres of the brain (left and right hemisphere).
Additional research upholds the beliefs of mind-body medicine in this sense, stating that brainwaves being in the Alpha state, 8 to 14 Hz, permits a vibration allowing for more serotonin to be created.
It’s important for us to come to terms with the fact that there is science behind age-old medicinal practices that do not require putting unknown substances in our bodies to alleviate issues like stress, depression, anxiety, and more.
But even more intriguing is to think something as simple as sound, as music, which we have come to treat as utterly pleasurable entertainment, has not only been used to promote healing and well-being, but has proven to work through research as well.