When you hear two sound frequencies that are close together, but not identical, a part of your brain called the superior olivary complex can be “tricked” into hearing a binaural beat. This causes many different parts of their brain to become synchronized, which “overloads” their brain, leading to a seizure. For example, the brain activity of people with epilepsy can be easily entrained to a specific frequency of flashing lights. Įntrainment isn’t unique to binaural beats in fact, it is a common aspect of brain function. According to some researchers, b inaural beats could then enhance or suppress the different cognitive and emotional functions associated with different types of brain waves. The idea behind binaural beats is that listening to them could increase the strength of certain brain waves throughout the brain. This synchronization of neural activity across different brain areas is called “ entrainment” and is the main way that binaural beats cause changes in our brain waves. In other words, this part of the brain acts like the conductor of an orchestra, coordinating and synchronizing the activities of many neurons throughout the rest of the brain. The superior olivary complex can be ‘tricked’ into hearing a beat when it senses two close frequencies it responds by synchronizing neuronal activity in other parts of the brain. įig (a): Schematic depiction of the seeds in the auditory pathway: Primary auditory cortex (PAC) medial geniculate nucleus (MGN) inferior colliculus (IC) and superior olivary complex (SOC). This brain area allows us to identify the direction of sounds. The part of our brains that first processes sound inputs from both ears is called the superior olivary complex, which is located in the brain stem. Available studies are small and low quality.
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