SOUND AND LIGHT FREQUENCIES
Sound and light therapy benefits
- Greatly enhance your power to heal
EEG studies have shown light and sound frequency treatments can induce a theta brain wave state, which switches the autonomic nervous system into parasympathetic, or healing and repair mode.
- Relax more deeply
Ever have trouble silencing your "monkey mind?" Light and sound stimulation uses completely natural forms of stimulation to gently lead your mind into a slower, and more tranquil mind stats.
- Experience less anxiety
Use of light and sound machines has often been compared to "electronic meditation." Regular use help reduce anxiety and other common responses to psychological stress.
- Fall asleep more quickly
One of the most powerful and effective applications of light and sound stimulation lies in its ability to rapidly induce deep, refreshing sleep.
- Enhaned learning ability
When you're in the "twilight" state, you can access the power of your subconscious mind and use it for solving creative problems. You may even find your enjoyment of music and art increasing, with regular use! Discover why Writer's Digest called one of our systems the "idea generator"!
- Improved visualization
Flickering light activates your visual processing mind much more strongly than does ambient light. In fact, most people will "see" a stream of colourful, dreamlike or kaleidoscopic images during a session. If you rely at all on your visual imagination or memory, you'll find light & sound machines especially beneficial.
- Accelerate your learning ability
Light and sound stimulation can help you improve your school grades, boost verbal IQ, reduce mental stress and focus more clearly on your studies. A recently published study demonstrated a significant increase in college Grade Point Average following regular use.
To those seeing them for the first time, sound and light devices may seem bizarre, like something out of a science fiction movie--the users seem laid back, out there somewhere, wired into a small box listening through headphones to some unheard sounds while eerie light pulsations flicker inside futuristic goggles. And to those encountering these devices from a background of meditative practice, the idea that one can attain heightened or meditative states of consciousness by using a machine, and the sheer technical computerized hardware of the devices themselves, must seem coldly materialistic. But while the hardware may seem new, the techniques being used are ancient.
The knowledge that a flickering light can cause mysterious visual hallucinations and alterations in consciousness is something humans have known since the discovery of fire. It must have been knowledge of great value to the ancient shamans and poets, who learned how to use the images in the flames to enhance their magic.
Ancient scientists were also intrigued by this phenomenon, and explored its practical applications. In 125 A.D. Apuleius experimented with a flickering light stimulus produced by the rotation of a potter's wheel, and found it could be used to reveal a type of epilepsy. Around 200 A.D. Ptolemy noted that when he placed a spinning spoked wheel between an observer and the sun, the flickering of the sunlight through the spokes of the spinning wheel could cause patterns and colours to appear before the eyes of the observer and could produce a feeling of euphoria.
Light researcher David Siever has found that in the 17th century, a Belgian scientist, Plateau, used the flickering of light through a strobe wheel to study the diagnostic significance of the flicker fusion phenomenon. As he caused the light flickers to come faster and faster, he found that at a certain point the flickers seemed to "fuse" into a steady, unflickering light pattern. Plateau discovered that healthy people were able to see separate flashes of light at much higher flicker speeds than were sick people. (In recent years, studies using light sources such as a tachistoscope to provide rapid light flashes have revealed that long-term meditators are able to see discrete flashes of light at much higher flicker rates than nonmeditators.) At the turn of the century, French psychologist Pierre Janet noticed that when patients at the Salpetriere Hospital in Paris were exposed to flickering lights they experienced reductions in hysteria and increases in relaxation.
Similarly, humans had always been enthralled by the effects of rhythmic sounds, and aware of the mind-altering and brain wave entrainment effects of rhythmic noises, as evidenced for example by the sophisticated auditory-driving techniques developed over thousands of years by shamans and priests. As anthropologist and shamanism authority Michael Harner, points out, "Basic tools for entering the SSC [Shamanic State of Consciousness] are the drum and Researcher Andrew Neher investigated the effects of drumming on EEG patterns in the early 1960s and found the rhythmic pounding dramatically altered brain wave activity. Other researchers of shamanistic rituals, Harner observes, have "found that drum beat frequencies in the theta wave EEG frequency range ... predominated during initiation procedures." And humans have always been keenly appreciative of the consciousness heightening powers of music, which is of course, among other things, a succession of rhythmic auditory signals. For thousands of years musicians and composers have consciously and intentionally influenced the brain states of listeners by manipulating the frequency of the rhythms and tones of their music.
SOUND AND LIGHT TOGETHER
Humans have also long been intrigued by the possibilities for influencing mental functioning that emerge from combining both rhythmic light and rhythmic sound stimulation. Ancient rituals for entering trance states often involved both rhythmic sounds in the form of drumbeats, clapping or chanting, and flickering lights produced by candles, torches, bonfires or long lines of human bodies rhythmically dancing, their forms passing before the fire and chopping the light into mesmerizing rhythmic flashes. Some composers of the past, such as the visionary Scriabin, actually created music intended to be
experienced in combination with rhythmic light displays. Technological advances made possible even more powerful combinations of sound and light. Moving pictures developed Modern scientific research into the effects of rhythmic light and sound began in the mid-1930s when scientists discovered that the electrical rhythms of the brain tended to assume the rhythm of a flashing light stimulus, a process called entrainment.
Research shifted into high gear in the late 1940s when the great British neuroscientist W. Gray Walter used an electronic strobe and advanced EEG equipment to investigate what he called the "flicker phenomenon." He found that rhythmic flashing lights quickly altered brainwave activity, producing trancelike states of profound relaxation and vivid mental imagery. He was also startled to find that the flickering seemed to alter the brain-wave activity of the whole cortex instead of just the areas associated with vision. Wrote Walter: "The rhythmic series of flashes appear to be breaking down some of the physiologic barriers between different regions of the brain. This means the stimulus of flicker received by the visual projection area of the cortex was breaking bounds--its ripples were overflowing into other areas." The subjective experiences of those receiving the flashes were even more intriguing: "Subjects reported lights like comets, ultra-unearthly colours, mental colours, not deep visual ones."
Examples of light and sound frequency therapy