I started seeing a therapist this year and completed an assessment determining that I have depression. This is something I wish more people would talk openly about, but that could be its own post for another day. Anyway, I am very lucky that the…
Brighter Morning Tip #5 Make your breakfast with intention. Use beautiful ingredients and let it be another thing in your morning that brings you joy! #breakfast #chai #buckinis #lovingearth #mornings #mindfulmorning #mindful #mindfulness #mindfulhabits #joy #intention
Binaural beats are produced by recording a tone of a particular frequency in one track of a stereo file, and a tone of a slightly different frequency in the other track. The human brain picks up the difference between the two tones as a series of beats. For example, if one track is at 60HZ (60 cycles per second) and the other at 50HZ, the brain will interpret this as a 10HZ beat (60-50=10). Stereo headphones are needed to listen to binaural recordings. Monaural tones are produced by combining the two tracks into one mono recording. The resultant waveform varies in strength at a rate equal to the difference between the two frequencies. The beats are then contained within the recording, rather than being produced by the brain. Isochronic tones consist of a series of pulses, separated by periods of silence. A 10HZ tone would be produced by including 10 separate pulses in each second of recording.
What do the scientists say?
The answer is surprising. Firstly, numerous studies have shown that binaural beats do not appear to produce any significant entrainment effect. That is, no matter how long you listen to, say, a binaural recording containing theta beats, your brain will not respond with an increase of theta activity. On the other hand, extensive studies have confirmed that monaural and isochronic tones do induce entrainment. Isochronic tones are the most effective of the three modes. A recent study by Tina Huang and Christine Charyton – “A Comprehensive Review of the Psychological Effects of Brainwave Entrainment” – confirms beneficial effects from brain entrainment as a whole, but a closer examination of their paper reveals that there are no positive results when binaural beats are used on their own. It’s interesting that this paper is often quoted by proponents of binaural beats as evidence of their effectiveness, when the study actually finds otherwise. Another report by David Siever, of Mind Alive, confirms that only monaural or isochronic tones produce demonstrable evidence of entrainment. His article quotes a number of research projects which failed to find any entrainment effects from binaural beats.