A prospective, randomised, controlled study examining binaural beat audio and pre-operative anxiety in patients undergoing general anaesthesia for day case surgery
According to Padmanabhan (2005) , listening to binaural beats for a recommended period can affect a person’s subsequent behavior and sleep cycles.
Authors suggest that there are five different categories of frequency pattern:
- Delta pattern: Binaural beats in the delta pattern operate at a frequency of 0.5–4 Hz with links to a dreamless sleep. In the study, people who received a delta pattern frequency during sleep entered a deeper stage of sleep, according to electroencephalogram (EEG) brain scan results.
- Theta pattern: Practitioners set binaural beats in the theta pattern to a frequency of 4–7 Hz. Theta patterns contribute to improved meditation, creativity, and sleep in the rapid eye movement (REM) phase.
- Alpha pattern: Binaural beats in the alpha pattern are at a frequency of 7–13 Hz and may encourage relaxation.
- Beta pattern: Binaural beats in the beta pattern are at a frequency of 13–30 Hz. This frequency range may help promote concentration and alertness. However, it can also increase anxiety at the higher end of the range.
- Gamma pattern: This frequency pattern accounts for a range of 30–50 Hz. The study authors suggest that these frequencies promote maintenance of arousal while a person is awake.
The purpose of using binaural beats therapy may differ among individuals. Some people may need help decreasing their anxiety, while others might want to increase their concentration or deepen their level of meditation.
Proponents of binaural beat therapy suggest that the potential benefits include:
- reduced stress and anxiety
- increased focus, concentration, and motivation
- improved confidence
- better long term memory after exposure to beta pattern frequencies, according to a 2019 studyTrusted Source
- deeper meditation
- enhanced psychomotor performance and mood
Padmanabhan, R., Hildreth, A.J. and Laws, D. (2005), A prospective, randomised, controlled study examining binaural beat audio and pre-operative anxiety in patients undergoing general anaesthesia for day case surgery. Anaesthesia, 60: 874-877. https://doi.org/10.1111/j.1365-2044.2005.04287.x