Effect of binaural stimulation on attention and EEG

Crespo Pelayo, Adela del Carmen and Recuero López, Manuel and Gálvez García, Gerardo Miguel and Begoña Monco, Adrián (2013). Effect of binaural stimulation on attention and EEG. "Archives of Acoustics", v. 38 (n. 4); pp. 517-528. ISSN 0137-5075.


Title: Effect of binaural stimulation on attention and EEG
  • Crespo Pelayo, Adela del Carmen
  • Recuero López, Manuel
  • Gálvez García, Gerardo Miguel
  • Begoña Monco, Adrián
Item Type: Article
Título de Revista/Publicación: Archives of Acoustics
Date: 2013
Volume: 38
Freetext Keywords: Binaural auditory beats, attention, frequency following response
Faculty: Centro de Tecnología Biomédica (CTB) (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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When two pure tones of slightly different frequency are presented separately to each ear, the listener perceives a third single tone with amplitude variations at a frequency that equals the difference between the two tones; this perceptual illusion is known as the binaural auditory beat (BB). There are anecdotal reports that suggest that the binaural beat can entrain EEG activity and may affect the arousal levels, although few studies have been published. There is a need for double-blind, well-designed studies in order to establish a solid foundation for these sounds, as most of the documented benefits come from self-reported cases that could be affected by placebo effect. As BBs are a cheap technology (it even exists a free open source programmable binaural- beat generator on the Internet named Gnaural), any achievement in this area could be of public interest. The aim in our research was to explore the potential of BBs in a particular field: tasks that require focus and concentration. In order to detect changes in the brain waves that could relate to any particular improvement, EEG recordings of a small sample of individuals were also obtained. In this study we compare the effect of different binaural stimulation in 7 EEG frequency ranges. 78 participants were exposed to 20-min binaural beat stimulation. The effects were obtained both quali- tative with cognitive test and quantitative with EEG analysis. Results suggest no significant statistical improvement in 20-min stimulation.

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Item ID: 22356
DC Identifier: http://oa.upm.es/22356/
OAI Identifier: oai:oa.upm.es:22356
Deposited by: Memoria Investigacion
Deposited on: 19 Apr 2015 11:47
Last Modified: 19 Apr 2015 11:47
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