Our meta-analysis adds to the growing evidence that binaural-beat exposure is an effective way to affect cognition over and above reducing anxiety levels and the perception of pain without prior training, and that the direction and the magnitude of the effect depends upon the frequency used, time under exposure, and the moment in which the exposure takes place. Binaural auditory beats are a perceptual phenomenon that occurs when presenting separately to each ear two tones that slightly differ in their frequency. Time under exposure contributed significantly to the model indicating that longer periods are advisable to ensure maximum effectiveness. Binaural beat technology is marketed as a self-improvement tool to reduce stress, improve mood, increase cognition, deepen meditation, and alter states of. Moreover, the findings suggest that binaural-beat exposure before, and before and during the task produces superior results than exposure during the task. The brain responses to binaural beats remain controversial therefore, the aim of this study was to investigate theta activity responses to a binaural beat by controlling factors affecting localization, including beat frequency, carrier tone frequency, exposure duration, and recording procedure. So if we send a 200 Hz signal to the left ear and a 215 Hz signal to the right ear, the brain will essentially create a third signal that represents the mathematical difference between the two, which in this case is 15 Hz. Meta-regression results indicated that it does not seem to be necessary to mask binaural beats with white noise or pink noise in terms of effectiveness, obtaining similar effects with unmasked binaural beats. Binaural beats is a natural science in that the processing happens automatically in the brain. The results, based on 35 effect sizes, showed an overall medium, significant, consistent effect size (g = 0.45). Twenty-two studies met our inclusion criteria for this meta-analysis. The objective of this meta-analysis was to study the effect of binaural beats on memory, attention, anxiety, and analgesia. There is a lot of evidence from scientific studies that they can help improve cognitive skills, such as our ability to concentrate and remember. They are helpful in prevention, stress reduction and deep relaxation. The analysis of average amplitudes of spectral density function of EEG strength signal proved that. Binaural beats can help you feel more comfortable in different areas of life. It has been suggested that binaural beats can influence cognition and mental states among others. The research was conducted on a sample group of 20 people. Binaural auditory beats are a perceptual phenomenon that occurs when presenting separately to each ear two tones that slightly differ in their frequency. reported that 3-min 40 Hz binaural beats stimulation improved focus and attention in healthy young adults.
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