Hemi-sync is a biofeedback that uses audio stimuli or visual stimuli to stimulate specific brain waves to induce relaxation or trigger or ph
In the late ’60s, an engineer named Bill Neidig discovered that frequencies could be harnessed to create different effects on the brain. So he began experimenting with different sounds, syllables, and frequencies to create a more balanced response from the brain.
In 1971, Neidig teamed up with sound engineer Thomas Lightner and clinical psychologist Michael Monroe. Together they created Hemi-Sync (short for “hemispheric synchronization”).
A form of biofeedback that uses audio stimuli and, in some cases, visual stimuli to stimulate specific brain waves (alpha or beta) to induce relaxation or trigger desired psychological states or physical responses.
What Are Brain Waves
Brain waves are oscillations in the brain’s electrical activity. A device called an electroencephalogram (EEG) measures them and records the flow of electrical current through the brain.
Waves of the brain are classified by their frequency and the number of times waves cycle per second. The frequency of a wave is determined by the rate at which neurons (brain cells) emit electrical impulses.
Waves with high frequencies (30 hertz or higher) are considered “high-frequency” or “gamma” waves, while lower frequencies (12 hertz or above) fall into the category of “low-frequency” or “beta” waves.
Scientists have identified four primary types of brain waves: alpha, beta, theta, and delta.
