The brain integrates the two signals, producing a sensation of a third sound called the binaural beat. For example, if a frequency of 100 Hz is played in one ear and 107 Hz is played in the other ear, a binaural beat of 7 Hz is created by the brain.
Brain waves match or “follow” the binaural beat. If
the binaural beat is 7 Hz, an increase in brain waves of 7
Hz occurs. Binaural beats originate in the brainstem's superior olivary nucleus, the site of contralateral integration of auditory input. The binaural beat is neurologically conveyed to the reticular formation which uses neurotransmitters to initiate changes in brainwave activity.
Brain Waves & Consciousness
Beta (13-26 Hz) Alert concentration and problem-solving
Alpha (8-13 Hz) Alert relaxation
Theta (4-7 Hz) Deep relaxation and increased learning
Delta (1-3 Hz) Deep sleep ... read more>>>...