Low intensity white noise improves performance in auditory working memory task: An fMRI study

Research suggests that white noise may facilitate auditory working memory performance via stochastic resonance. Stochastic resonance is quantified by plotting cognitive performance as a function of noise intensity. The plot would appear as an inverted U-curve, that is, a moderate noise is beneficial...

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Main Authors:	Othman, Elza Azri, Yusoff, Ahmad Nazlim, Mohamad, Mazlyfarina, Abdul Manan, Hanani, Giampietro, Vincent, Abdul Hamid, Aini Ismafairus, Dzulkifli, Mariam Adawiah, Osman, Shazarina Sharis, Wan Burhanuddin, Wan Ilma Dewiputri
Format:	Article
Language:	English English English
Published:	Elsevier Ltd 2019
Subjects:	BF Psychology BF712 Developmental psychology
Online Access:	http://irep.iium.edu.my/79710/ http://irep.iium.edu.my/79710/ http://irep.iium.edu.my/79710/ http://irep.iium.edu.my/79710/1/79710_Low%20intensity%20white%20noise.pdf http://irep.iium.edu.my/79710/2/79710_Low%20intensity%20white%20noise_SCOPUS.pdf http://irep.iium.edu.my/79710/3/79710_Low%20intensity%20white%20noise_WOS.pdf

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spelling	iium-797102020-03-20T14:03:16Z http://irep.iium.edu.my/79710/ Low intensity white noise improves performance in auditory working memory task: An fMRI study Othman, Elza Azri Yusoff, Ahmad Nazlim Mohamad, Mazlyfarina Abdul Manan, Hanani Giampietro, Vincent Abdul Hamid, Aini Ismafairus Dzulkifli, Mariam Adawiah Osman, Shazarina Sharis Wan Burhanuddin, Wan Ilma Dewiputri BF Psychology BF712 Developmental psychology Research suggests that white noise may facilitate auditory working memory performance via stochastic resonance. Stochastic resonance is quantified by plotting cognitive performance as a function of noise intensity. The plot would appear as an inverted U-curve, that is, a moderate noise is beneficial for performance whereas too low and too much noise attenuates performance. However, knowledge about the optimal signal-to-noise ratio (SNR) needed for stochastic resonance to occur in the brain, particularly in the neural network of auditory working memory, is limited and demand further investigation. In the present study, we extended previous works on the impact of white noise on auditory working memory performance by including multiple background noise levels to map out the inverted U-curve for the stochastic resonance. Using functional magnetic resonance imaging (fMRI), twenty healthy young adults performed a word-based backward recall span task under four signal-to-noise ratio conditions: 15, 10, 5, and 0-dB SNR. Group results show significant behavioral improvement and increased activation in frontal cortices, primary auditory cortices, and anterior cingulate cortex in all noise conditions, except at 0-dB SNR, which decreases activation and performance. When plotted as a function of signal-to-noise ratio, behavioral and fMRI data exhibited a noise-benefit inverted U-shaped curve. Additionally, a significant positive correlation was found between the activity of the right superior frontal gyrus (SFG) and performance in 5-dB SNR. The predicted phenomenon of SR on auditory working memory performance is confirmed. Findings from this study suggest that the optimal signal-to-noise ratio to enhance auditory working memory performance is within 10 to 5-dB SNR and that the right SFG may be a strategic structure involved in enhancement of auditory working memory performance. © 2019 Elsevier Ltd 2019-09 Article PeerReviewed application/pdf en http://irep.iium.edu.my/79710/1/79710_Low%20intensity%20white%20noise.pdf application/pdf en http://irep.iium.edu.my/79710/2/79710_Low%20intensity%20white%20noise_SCOPUS.pdf application/pdf en http://irep.iium.edu.my/79710/3/79710_Low%20intensity%20white%20noise_WOS.pdf Othman, Elza Azri and Yusoff, Ahmad Nazlim and Mohamad, Mazlyfarina and Abdul Manan, Hanani and Giampietro, Vincent and Abdul Hamid, Aini Ismafairus and Dzulkifli, Mariam Adawiah and Osman, Shazarina Sharis and Wan Burhanuddin, Wan Ilma Dewiputri (2019) Low intensity white noise improves performance in auditory working memory task: An fMRI study. Heliyon, 5 (9). pp. 1-9. E-ISSN 2405-8440 https://www.sciencedirect.com/science/article/pii/S2405844019361043 10.1016/j.heliyon.2019.e02444
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	BF Psychology BF712 Developmental psychology
spellingShingle	BF Psychology BF712 Developmental psychology Othman, Elza Azri Yusoff, Ahmad Nazlim Mohamad, Mazlyfarina Abdul Manan, Hanani Giampietro, Vincent Abdul Hamid, Aini Ismafairus Dzulkifli, Mariam Adawiah Osman, Shazarina Sharis Wan Burhanuddin, Wan Ilma Dewiputri Low intensity white noise improves performance in auditory working memory task: An fMRI study
description	Research suggests that white noise may facilitate auditory working memory performance via stochastic resonance. Stochastic resonance is quantified by plotting cognitive performance as a function of noise intensity. The plot would appear as an inverted U-curve, that is, a moderate noise is beneficial for performance whereas too low and too much noise attenuates performance. However, knowledge about the optimal signal-to-noise ratio (SNR) needed for stochastic resonance to occur in the brain, particularly in the neural network of auditory working memory, is limited and demand further investigation. In the present study, we extended previous works on the impact of white noise on auditory working memory performance by including multiple background noise levels to map out the inverted U-curve for the stochastic resonance. Using functional magnetic resonance imaging (fMRI), twenty healthy young adults performed a word-based backward recall span task under four signal-to-noise ratio conditions: 15, 10, 5, and 0-dB SNR. Group results show significant behavioral improvement and increased activation in frontal cortices, primary auditory cortices, and anterior cingulate cortex in all noise conditions, except at 0-dB SNR, which decreases activation and performance. When plotted as a function of signal-to-noise ratio, behavioral and fMRI data exhibited a noise-benefit inverted U-shaped curve. Additionally, a significant positive correlation was found between the activity of the right superior frontal gyrus (SFG) and performance in 5-dB SNR. The predicted phenomenon of SR on auditory working memory performance is confirmed. Findings from this study suggest that the optimal signal-to-noise ratio to enhance auditory working memory performance is within 10 to 5-dB SNR and that the right SFG may be a strategic structure involved in enhancement of auditory working memory performance. © 2019
format	Article
author	Othman, Elza Azri Yusoff, Ahmad Nazlim Mohamad, Mazlyfarina Abdul Manan, Hanani Giampietro, Vincent Abdul Hamid, Aini Ismafairus Dzulkifli, Mariam Adawiah Osman, Shazarina Sharis Wan Burhanuddin, Wan Ilma Dewiputri
author_facet	Othman, Elza Azri Yusoff, Ahmad Nazlim Mohamad, Mazlyfarina Abdul Manan, Hanani Giampietro, Vincent Abdul Hamid, Aini Ismafairus Dzulkifli, Mariam Adawiah Osman, Shazarina Sharis Wan Burhanuddin, Wan Ilma Dewiputri
author_sort	Othman, Elza Azri
title	Low intensity white noise improves performance in auditory working memory task: An fMRI study
title_short	Low intensity white noise improves performance in auditory working memory task: An fMRI study
title_full	Low intensity white noise improves performance in auditory working memory task: An fMRI study
title_fullStr	Low intensity white noise improves performance in auditory working memory task: An fMRI study
title_full_unstemmed	Low intensity white noise improves performance in auditory working memory task: An fMRI study
title_sort	low intensity white noise improves performance in auditory working memory task: an fmri study
publisher	Elsevier Ltd
publishDate	2019
url	http://irep.iium.edu.my/79710/ http://irep.iium.edu.my/79710/ http://irep.iium.edu.my/79710/ http://irep.iium.edu.my/79710/1/79710_Low%20intensity%20white%20noise.pdf http://irep.iium.edu.my/79710/2/79710_Low%20intensity%20white%20noise_SCOPUS.pdf http://irep.iium.edu.my/79710/3/79710_Low%20intensity%20white%20noise_WOS.pdf
first_indexed	2023-09-18T21:51:42Z
last_indexed	2023-09-18T21:51:42Z
_version_	1777413812649984000

Low intensity white noise improves performance in auditory working memory task: An fMRI study

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