Gamma waves are related to an intense state of concentration and to an active learning of the brain. It involves cognitive activity and logical thinking in an active state of consciousness. Beta waves are associated with awareness and concentration improvement. Alpha waves reduce stress hormone production and promote relaxation. These are the most common brain waves that occur at the start of meditation and are associated with low heart rate and blood pressure.
They provides a productive state of mind, by stimulating creativity and concentration, increasing memory and improving ability to solve problems. Theta waves appear when a person starts to meditate. It is considered that only Tibetan monks with years of experience in mediation can achieve this during an alert, awake phase. This is the lowest frequency state and appears during deep sleep. There are five types of brainwaves that influence the listeners’ mental state, determining their emotions and state of consciousness ( Crum, 2021): 5 Types of Brainwaves that can be Induced by Binaural Beats For the best binaural beats experience however, using an immersive stereo headphone that can reproduce and isolate the required frequencies accurately is highly recommended.
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Although the use of speakers is not suitable to get the full experience, the most common headphones are sufficient to get the basic experience. However, to experience brain entrainment the sounds received by each ear need to be isolated. The process of brain activity synchronization to the perceived beat is usually called entrainment ( Wahbeh et al., 2007). This effect induces a brain activity that corresponds to the perceived beat.
It is important to mention that the therapeutic properties of binaural beat technology are based on an effect called frequency-following ( Moushegian et al., 1973). For example, if a 510 Hz pure tone is presented to a listener’s right ear while a 500 Hz pure tone is presented to the listener’s left ear, then the listener would perceive an illusory binaural beat with a frequency of 10 Hz ( McConnell et al., 2014). The frequency of this beat is the difference in hertz (Hz) between the frequencies of the two tones. The presentation of two pure sinusoidal tones to each ear separately with a steady intensity, but with a slight difference in their frequency, results in the perception of a single illusionary tone with a different frequency. What Are Binaural Beats?īinaural beat technology is based on an illusion created by the brain that occurs when presenting separately to each ear two tones that slightly differ in their frequency. However, despite its benefits on mental health, knowledge on the potential of binaural beat technology for the general population is still sparse. The scientific literature has also started to demonstrate its benefits to improve key cognitive processes like memory ( Colzato et al., 2017a Hommel et al., 2016), attention ( Beauchene et al., 2017 Garcia-Argibay et al., 2019) or the levels of creativity ( Reedijk et al., 2013).
During the last few years, binaural beat technology has started to be recognized as a powerful technique to improve the psychological wellbeing and the quality of life of its users, by helping them in achieving a positive state of mind and in managing negative emotions like stress or anxiety ( Kelton et al., 2021 Wahbeh et al., 2007).
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