Effect of binaural stimulation on attention and EEG

• Autorzy: Crespo A. , Recuero M. , Galvez G. , Begoña A.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

binaural auditory beats; attention; frequency following response

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2013
• Tom: Vol. 38, No. 4
• Strony: 517--528
• Opis fizyczny: Bibliogr. 17 poz., tab.

Twórcy

autor

Crespo A.

• Centro de Acustica Aplicada y Evaluacion no Destructiva, Consejo Superior de Investigaciones Cient´ıficas (CAEND-CSIC) C/, Serrano 144, 28005 – Madrid, Spain

autor

Recuero M.

• Centro de Acustica Aplicada y Evaluacion no Destructiva, Consejo Superior de Investigaciones Cient´ıficas (CAEND-CSIC) C/, Serrano 144, 28005 – Madrid, Spain

autor

Galvez G.

• Centro de Acustica Aplicada y Evaluacion no Destructiva, Consejo Superior de Investigaciones Cient´ıficas (CAEND-CSIC) C/, Serrano 144, 28005 – Madrid, Spain
• Centro de Tecnologıa Biomedica, Universidad Politecnica de Madrid (CTB-UPM), Campus de Montegancedo, 28223 – Pozuelo de Alarcon, Spain

autor

Begoña A.

• Centro de Acustica Aplicada y Evaluacion no Destructiva, Consejo Superior de Investigaciones Cient´ıficas (CAEND-CSIC) C/, Serrano 144, 28005 – Madrid, Spain

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