Low intensity white noise improves performance in auditory working memory task: An fMRI study
| Format: | Restricted Document |
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| _version_ | 1860797375011880960 |
|---|---|
| building | INTELEK Repository |
| caption | Heliyon, 5 (2017) e02444. doi:10.1016/j.heliyon.2019.e02444 |
| collection | Online Access |
| collectionurl | https://intelek.unisza.edu.my/intelek/pages/search.php?search=!collection407072 |
| copyright | © 2019 Published by Elsevier Ltd. |
| date | 2019-09-12 23:39:21 |
| format | Restricted Document |
| id | 12463 |
| institution | UniSZA |
| originalfilename | 6766-01-FH02-FSK-21-56272.pdf |
| person | Elza Othman Ahmad Nazlim Yusoff Mazlyfarina Mohamad Hanani Abdul Manan Vincent Giampietro Aini Ismafairus Abd Hamid Mariam Adawiah Dzulkifli Syazarina Sharis Osman Wan Ilma Dewiputri Wan Burhanuddin |
| recordtype | oai_dc |
| resourceurl | https://intelek.unisza.edu.my/intelek/pages/view.php?ref=12463 |
| spelling | 12463 https://intelek.unisza.edu.my/intelek/pages/view.php?ref=12463 https://intelek.unisza.edu.my/intelek/pages/search.php?search=!collection407072 Restricted Document Article Journal application/pdf 9 Adobe Acrobat Pro DC 20 Paper Capture Plug-in 1.7 Elza Othman Ahmad Nazlim Yusoff Mazlyfarina Mohamad Hanani Abdul Manan Vincent Giampietro Aini Ismafairus Abd Hamid Mariam Adawiah Dzulkifli Syazarina Sharis Osman Wan Ilma Dewiputri Wan Burhanuddin © 2019 Published by Elsevier Ltd. 2019-09-12 23:39:21 Heliyon, 5 (2017) e02444. doi:10.1016/j.heliyon.2019.e02444 Neuroscience Psychology Education Auditory working memory White noise Intensity Stochastic resonance MRI Low intensity white noise improves performance in auditory working memory task: An fMRI study 6766-01-FH02-FSK-21-56272.pdf Low intensity white noise improves performance in auditory working memory task: An fMRI study UniSZA Private Access Low intensity white noise improves performance in auditory working memory task: An fMRI study Heliyon 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. 5 e02444 1-9 |
| spellingShingle | Low intensity white noise improves performance in auditory working memory task: An fMRI study |
| subject | Neuroscience Psychology Education Auditory working memory White noise Intensity Stochastic resonance MRI |
| summary | 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. |
| title | 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_short | 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 |