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Night-Time Noise Index Based on the Integration of Awakening Potential

Sleep disturbance induced by night-time noise is a serious environmental problem that can cause adverse health effects, such as hypertension and ischemic heart disease. Night-time noise indices are used to facilitate the enforcement of permitted noise levels during night-time. However, existing nigh...

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Detalles Bibliográficos
Autores principales: Tagusari, Junta, Takashima, Tomoya, Furukawa, Satoshi, Matsui, Toshihito
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4808935/
https://www.ncbi.nlm.nih.gov/pubmed/26938546
http://dx.doi.org/10.3390/ijerph13030272
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author Tagusari, Junta
Takashima, Tomoya
Furukawa, Satoshi
Matsui, Toshihito
author_facet Tagusari, Junta
Takashima, Tomoya
Furukawa, Satoshi
Matsui, Toshihito
author_sort Tagusari, Junta
collection PubMed
description Sleep disturbance induced by night-time noise is a serious environmental problem that can cause adverse health effects, such as hypertension and ischemic heart disease. Night-time noise indices are used to facilitate the enforcement of permitted noise levels during night-time. However, existing night-time noise indices, such as sound exposure level (SEL), maximum sound level ([Formula: see text]) and night equivalent level ([Formula: see text]) are selected mainly because of practical reasons. Therefore, this study proposes a noise index based on neurophysiological determinants of the awakening process. These determinants have revealed that the potential on awakening is likely integrated into the brainstem that dominates wakefulness and sleep. From this evidence, a night-time noise index, [Formula: see text] , was redefined based on the integration of the awakening potential unit ([Formula: see text]) estimated from the existing dose-response relationships of awakening. The newly-defined index considers the total number of awakenings and covers a wide-range and number of noise events. We also presented examples of its applicability to traffic noise. Although further studies are needed, it may reveal a reasonable dose-response relationship between sleep disturbance and adverse health effects and provide a consistent explanation for the risks of different sound sources where the characteristics of noise exposure are quite different.
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spelling pubmed-48089352016-04-04 Night-Time Noise Index Based on the Integration of Awakening Potential Tagusari, Junta Takashima, Tomoya Furukawa, Satoshi Matsui, Toshihito Int J Environ Res Public Health Article Sleep disturbance induced by night-time noise is a serious environmental problem that can cause adverse health effects, such as hypertension and ischemic heart disease. Night-time noise indices are used to facilitate the enforcement of permitted noise levels during night-time. However, existing night-time noise indices, such as sound exposure level (SEL), maximum sound level ([Formula: see text]) and night equivalent level ([Formula: see text]) are selected mainly because of practical reasons. Therefore, this study proposes a noise index based on neurophysiological determinants of the awakening process. These determinants have revealed that the potential on awakening is likely integrated into the brainstem that dominates wakefulness and sleep. From this evidence, a night-time noise index, [Formula: see text] , was redefined based on the integration of the awakening potential unit ([Formula: see text]) estimated from the existing dose-response relationships of awakening. The newly-defined index considers the total number of awakenings and covers a wide-range and number of noise events. We also presented examples of its applicability to traffic noise. Although further studies are needed, it may reveal a reasonable dose-response relationship between sleep disturbance and adverse health effects and provide a consistent explanation for the risks of different sound sources where the characteristics of noise exposure are quite different. MDPI 2016-03-01 2016-03 /pmc/articles/PMC4808935/ /pubmed/26938546 http://dx.doi.org/10.3390/ijerph13030272 Text en © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tagusari, Junta
Takashima, Tomoya
Furukawa, Satoshi
Matsui, Toshihito
Night-Time Noise Index Based on the Integration of Awakening Potential
title Night-Time Noise Index Based on the Integration of Awakening Potential
title_full Night-Time Noise Index Based on the Integration of Awakening Potential
title_fullStr Night-Time Noise Index Based on the Integration of Awakening Potential
title_full_unstemmed Night-Time Noise Index Based on the Integration of Awakening Potential
title_short Night-Time Noise Index Based on the Integration of Awakening Potential
title_sort night-time noise index based on the integration of awakening potential
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4808935/
https://www.ncbi.nlm.nih.gov/pubmed/26938546
http://dx.doi.org/10.3390/ijerph13030272
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