Binaural Beats


Ever heard of them?

Andrew Newberg, neuroscientist at the University of Pennsylvania, and author of “How God Changes Your Brain”, discovered that while we are deep in prayer or meditation, activity in our parietal lobes drops to almost nothing.

The parietal lobe is responsible for sensory awareness and orients us in the world. Newberg believes that the drop in activity during meditation and prayer explains that sense of oneness we feel with the universe when engaged in these focused activities.

How do they work?

The word binaural means “having or relating to two ears”. This represents the process, which works by simultaneously sending a marginally different sound frequency to each ear through headphones.

Brainwave entrainment happens inside the brain, and is caused by a physiological response. Upon hearing two tones of different frequencies – sent simultaneously to the left and right ears – the brain perceives a third tone based on the mathematical difference between the two frequencies.

The brain then follows along at the new frequency and produces brainwaves at the same rate of Hertz (Hz).

For example: if a 200 Hz sound frequency is sent to the left ear, and a 205 Hz to the right ear, the brain will process those two frequencies and perceive a new frequency at 5 Hz.

The brain then follows along at the new frequency (5 Hz), producing brainwaves at the same rate of Hertz (Hz). The technical term for this process is ‘frequency following response’.

What are some of the said benefits? 

Studies have said that the frequencies can help with:

What Frequency is best?

There are many frequencies that can have different affects on the brain:

  • Delta patterns: Binaural beats in the delta pattern are set at a frequency of between 0.1 and 4 Hz, which is associated with dreamless sleep.
  • Theta patterns: Binaural beats in the theta pattern are set at a frequency of between 4 and 8 Hz, which is associated with sleep in the rapid eye movement or REM phase, meditation, and creativity.
  • Alpha pattern: Binaural beats in the alpha pattern are set at a frequency of between 8 and 13 Hz, which may encourage relaxation.
  • Beta pattern: Binaural beats in the beta pattern are set at a frequency of between 14 Hz and 100 Hz, which may help promote concentration and alertness. However, this frequency can also increase anxiety at the higher end of the frequency range.

Here are some other links to check out! (must use headphones)

  1. All the beats (youtube search): https://www.youtube.com/results?search_query=binaural+beats
  2. Straight Binaural Frequency (worth a listen to test out how it sounds) – https://www.youtube.com/user/FulLengthBinaurals
  3. Spotify – searching ‘binaural beats’ comes up with many playlists

Other favourites we listen to (must use headphones)

 

Links/ further reading

:https://www.binauralbeatsmeditation.com/the-science/

http://web.stanford.edu/group/brainwaves/2006/MaxfieldABSTRACT.pdf

https://www.instagram.com/sac_geo/

https://www.medicalnewstoday.com/articles/320019.php

https://onlinelibrary.wiley.com/doi/full/10.1111/j.1365-2044.2005.04287.x