Participants were blinded as to the presence of binaural beats.Įach participant participated in three 30-minute experimental sessions across three days. Each subject performed a 30-minute visual vigilence task on three different days while listening to noise while listening to either simple tones (no binaural beats), or binaural beats in the beta (16 and 24 Hz) or theta/delta (1.5 and 4 Hz) range. I'll present two examples of weak studies, and one that in my opinion may show a real effect (but failing to rule out at least one confounding factor). There is research claiming positive effects of binaural beats, but many suffer from methodological weaknesses. In other words: Is there any solid evidence that ANY frequency could help the listener achieve a state of awareness/consciousness that they were aiming for? Or is it all pseudo-science?
In this case, changing the listener's mindset from anxiety to deep relaxation.īut is there actually any scientifically sound evidence to suggest that listening to "Alpha waves" could aid sleep? Or "Theta waves", meditation? Or "Beta waves" aiding concentration? So if your brain is running at 25Hz (a frequency associated with anxious thinking and concentration), listening to a "binaural beat" of 6Hz would aid a listener change the frequency of their brain to 6Hz, and so invoke a state of consciousness associated with that frequency. The theory behind "binaural beats" is that by watching/listening to stimulus at certain frequencies, you can invoke a state of mind in the listener relating to that frequency. < 4 Hz Delta waves Deep dreamless sleep, loss of body awareness > 40 Hz Gamma waves Higher mental activity, including perception, problem solving, fear, and consciousnessġ3–39 Hz Beta waves Active, busy or anxious thinking and active concentration, arousal, cognition, and or paranoiaħ–13 Hz Alpha waves Relaxation (while awake), pre-sleep and pre-wake drowsiness, REM sleep, DreamsĨ–12 Hz Mu waves Mu rhythm, Sensorimotor rhythmĤ–7 Hz Theta waves Deep meditation/relaxation, NREM sleep These are some examples: Frequency range Name Usually associated with: We know that the brain operates at different frequencies, depending on your state of consciousness.
"Binaural Beats" are a proven brain wave entrainment audio stimulus that are guaranteed to alter your state of consciousness. According to many websites and YouTube videos (including Wikipedia):
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