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Simpson RB, Harvey D, Leslie A, Sharkey D. Noise on NICU and during neonatal inter-hospital transport: Further interpretation of the acoustic findings. Acta Paediatr 2024; 113:1115-1116. [PMID: 38278773 DOI: 10.1111/apa.17131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 01/18/2024] [Indexed: 01/28/2024]
Affiliation(s)
- Rosalind B Simpson
- Nottingham University Hospitals, Nottingham, UK
- Centre for Perinatal Research, The University of Nottingham, Nottingham, UK
| | - Dominic Harvey
- Faculty of Engineering, The University of Nottingham, Nottingham, UK
- Round Peg Ltd, Cambridge, UK
| | - Andrew Leslie
- Centre for Perinatal Research, The University of Nottingham, Nottingham, UK
| | - Don Sharkey
- Nottingham University Hospitals, Nottingham, UK
- Centre for Perinatal Research, The University of Nottingham, Nottingham, UK
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2
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Jin T, Liu X, Chen C, Xia Y, Liu X, Lv M, Li L. The impact of environmental noise on drivers' cognitive abilities: A case study on in-vehicle voice interaction interfaces. Appl Ergon 2024; 117:104247. [PMID: 38335864 DOI: 10.1016/j.apergo.2024.104247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/29/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024]
Abstract
To investigate the impact of environmental noise on the cognitive abilities of drivers, this study, using in-vehicle voice interaction as an example, conducted laboratory experiments to assess the effects of road traffic noise, entertainment noise, and white noise stimuli on drivers' attention and short-term memory. The noise levels simulated to mimic acoustic conditions during car driving ranged from 35 dB(A) to 65 dB(A). The conclusions drawn were as follows: (1) Noise levels directly influenced subjective annoyance levels, with annoyance linearly increasing as noise levels escalated; (2) Both attention and short-term memory task reaction times of drivers were significantly influenced by noise types. Compared to traffic noise and white noise, drivers' cognitive efficiency was lower under entertainment noise. (3) Performance in complex cognitive tasks was more susceptible to noise levels compared to simple cognitive tasks; (4) Experimentally, it was found that drivers exhibited the highest cognitive efficiency in cognitive tasks when the environmental noise level was 55 dB(A), as opposed to noise levels of 35 dB(A), 45 dB(A), and 65 dB(A).
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Affiliation(s)
- Tao Jin
- College of Mechanical and Electrical Engineering, China University of Petroleum (East China), Qingdao, 266580, China.
| | - Xiaoxu Liu
- College of Mechanical and Electrical Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Chunpeng Chen
- College of Mechanical and Electrical Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Yuting Xia
- College of Mechanical and Electrical Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Xinyu Liu
- College of Mechanical and Electrical Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Meiyu Lv
- College of Mechanical and Electrical Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Li Li
- Qingdao Product Quality Testing Research Institute, Qingdao, 266101, China
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3
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Wahr JA, Abernathy JH. Too loud to hear myself think: deleterious effects of noise in the operating room. Br J Anaesth 2024; 132:840-842. [PMID: 38448271 DOI: 10.1016/j.bja.2024.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/12/2024] [Accepted: 02/12/2024] [Indexed: 03/08/2024] Open
Abstract
Noise is part of daily life in the operating room, and too often is viewed as a necessary evil. However, much of the noise in operating rooms (ORs) is unnecessary, such as extraneous conversations and music, and could be reduced. At the least, noise is known to increase staff stress and to hamper effective communication; at the worst, it adversely affects patient outcomes. Every member of the OR team should be cognisant of this and work to reduce unnecessary noise.
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Affiliation(s)
- Joyce A Wahr
- Department of Anesthesiology, University of Minnesota, Minneapolis, MN, USA.
| | - James H Abernathy
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, MD, USA
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4
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Rommelspacher H, Bera S, Brommer B, Ward R, Kwiatkowska M, Zygmunt T, Theden F, Üsekes B, Eren N, Nieratschker M, Arnoldner C, Plontke SK, Hellmann-Regen J, Schlingensiepen R. A single dose of AC102 restores hearing in a guinea pig model of noise-induced hearing loss to almost prenoise levels. Proc Natl Acad Sci U S A 2024; 121:e2314763121. [PMID: 38557194 PMCID: PMC11009624 DOI: 10.1073/pnas.2314763121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 01/29/2024] [Indexed: 04/04/2024] Open
Abstract
Although sudden sensorineural hearing loss (SSNHL) is a serious condition, there are currently no approved drugs for its treatment. Nevertheless, there is a growing understanding that the cochlear pathologies that underlie SSNHL include apoptotic death of sensory outer hair cells (OHCs) as well as loss of ribbon synapses connecting sensory inner hair cells (IHCs) and neurites of the auditory nerve, designated synaptopathy. Noise-induced hearing loss (NIHL) is a common subtype of SSNHL and is widely used to model hearing loss preclinically. Here, we demonstrate that a single interventive application of a small pyridoindole molecule (AC102) into the middle ear restored auditory function almost to prenoise levels in a guinea pig model of NIHL. AC102 prevented noise-triggered loss of OHCs and reduced IHC synaptopathy suggesting a role of AC102 in reconnecting auditory neurons to their sensory target cells. Notably, AC102 exerted its therapeutic properties over a wide frequency range. Such strong improvements in hearing have not previously been demonstrated for other therapeutic agents. In vitro experiments of a neuronal damage model revealed that AC102 protected cells from apoptosis and promoted neurite growth. These effects may be explained by increased production of adenosine triphosphate, indicating improved mitochondrial function, and reduced levels of reactive-oxygen species which prevents the apoptotic processes responsible for OHC death. This action profile of AC102 might be causal for the observed hearing recovery in in vivo models.
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Affiliation(s)
| | - Sujoy Bera
- AudioCure Pharma GmbH, Berlin10115, Germany
| | | | | | | | | | | | - Berk Üsekes
- AudioCure Pharma GmbH, Berlin10115, Germany
- Department of Psychiatry and Psychotherapy, Section Clinical Neurobiology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Campus Benjamin Franklin, Berlin12203, Germany
| | - Neriman Eren
- AudioCure Pharma GmbH, Berlin10115, Germany
- Department of Psychiatry and Psychotherapy, Section Clinical Neurobiology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Campus Benjamin Franklin, Berlin12203, Germany
| | - Michael Nieratschker
- Department of Otorhinolaryngology, Head and Neck Surgery, Vienna General Hospital, Medical University of Vienna, Vienna1090, Austria
| | - Christoph Arnoldner
- Department of Otorhinolaryngology, Head and Neck Surgery, Vienna General Hospital, Medical University of Vienna, Vienna1090, Austria
| | - Stefan K. Plontke
- Department of Otorhinolaryngology, Head and Neck Surgery, Martin Luther University Halle-Wittenberg, Halle06120, Germany
| | - Julian Hellmann-Regen
- Department of Psychiatry and Psychotherapy, Section Clinical Neurobiology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Campus Benjamin Franklin, Berlin12203, Germany
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5
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Ismail Mohamad N, Santra P, Park Y, Matthews IR, Taketa E, Chan DK. Synaptic ribbon dynamics after noise exposure in the hearing cochlea. Commun Biol 2024; 7:421. [PMID: 38582813 PMCID: PMC10998851 DOI: 10.1038/s42003-024-06067-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 03/18/2024] [Indexed: 04/08/2024] Open
Abstract
Moderate noise exposure induces cochlear synaptopathy, the loss of afferent ribbon synapses between cochlear hair cells and spiral ganglion neurons, which is associated with functional hearing decline. Prior studies have demonstrated noise-induced changes in the distribution and number of synaptic components, but the dynamic changes that occur after noise exposure have not been directly visualized. Here, we describe a live imaging model using RIBEYE-tagRFP to enable direct observation of pre-synaptic ribbons in mature hearing mouse cochleae after synaptopathic noise exposure. Ribbon number does not change, but noise induces an increase in ribbon volume as well as movement suggesting unanchoring from synaptic tethers. A subgroup of basal ribbons displays concerted motion towards the cochlear nucleus with subsequent migration back to the cell membrane after noise cessation. Understanding the immediate dynamics of synaptic damage after noise exposure may facilitate identification of specific target pathways to treat cochlear synaptopathy.
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Affiliation(s)
- Noura Ismail Mohamad
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, San Francisco, CA, USA
| | - Peu Santra
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, San Francisco, CA, USA
| | - Yesai Park
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, San Francisco, CA, USA
| | - Ian R Matthews
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, San Francisco, CA, USA
| | - Emily Taketa
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, San Francisco, CA, USA
| | - Dylan K Chan
- Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, San Francisco, CA, USA.
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Chee J, Eikelboom RH, Smits C, Swanepoel DW, Wee SL, Ng TP, Heywood RL. Digits in noise testing in a multilingual sample of Asian adults. Int J Audiol 2024; 63:269-274. [PMID: 36847757 DOI: 10.1080/14992027.2023.2179549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 03/01/2023]
Abstract
OBJECTIVE Appropriate speech-in noise assessment is challenging in multilingual populations. This study aimed to assess whether first preferred language affected performance on an English Digits-in-noise (DIN) test in the local Asian multilingual population, controlling for hearing threshold, age, sex, English fluency and educational status. A secondary aim was to determine the association between DIN test scores and hearing thresholds. DESIGN English digit-triplets in noise testing and pure-tone audiometry were conducted. Multiple regression analysis was performed with DIN scores and hearing thresholds as dependent variables. Correlation analysis was performed between DIN-SRT and hearing thresholds. STUDY SAMPLE 165 subjects from the Singapore Longitudinal Ageing Study, a population-based longitudinal study of community-dwellers over 55 years of age. RESULTS Mean DIN speech reception threshold (DIN-SRT) was -5.7 dB SNR (SD 3.6; range 6.7 to -11.2). Better ear pure tone average and English fluency were significantly associated with DIN-SRT. CONCLUSIONS DIN performance was independent of first preferred language in a multilingual ageing Singaporean population after adjusting for age, gender and education. Those with poorer English fluency had a significantly lower DIN-SRT score. The DIN test has the potential to provide a quick, uniform method of testing speech in noise in this multilingual population.
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Affiliation(s)
- Jeremy Chee
- Department of Otolaryngology - Head and Neck Surgery, National University Hospital, Singapore
| | - Robert H Eikelboom
- Ear Science Institute Australia, Subiaco, Australia
- Ear Sciences Centre, Medical School, The University of Western Australia, Perth, Australia
- Department of Speech Language Pathology and Audiology, University of Pretoria, Pretoria, South Africa
- Curtin Medical School, Curtin University, Bentley, Australia
| | - Cas Smits
- Department of Otolaryngology-Head and Neck Surgery, Amsterdam UMC location University of Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, the Netherlands
| | - De Wet Swanepoel
- Ear Science Institute Australia, Subiaco, Australia
- Department of Speech Language Pathology and Audiology, University of Pretoria, Pretoria, South Africa
- Department of Otolaryngology-Head and Neck Surgery, University of Colorado School of Medicine, Aurora, CO, USA
| | | | - Tze Pin Ng
- Geriatric Education and Research Institute, Singapore
- Department of Psychological Medicine, National University of Singapore, Singapore
| | - Rebecca L Heywood
- Ear Science Institute Australia, Subiaco, Australia
- Ear Sciences Centre, Medical School, The University of Western Australia, Perth, Australia
- Department of Otolaryngology, Ng Teng Fong General Hospital, Singapore
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7
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Yamaguchi T, Yoneyama M, Onaka Y, Ogita K. A novel model of sensorineural hearing loss induced by repeated exposure to moderate noise in mice: the preventive effect of resveratrol. J Vet Med Sci 2024; 86:381-388. [PMID: 38369331 DOI: 10.1292/jvms.23-0477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024] Open
Abstract
Sensorineural hearing loss (SNHL) induced by noise has increased in recent years due to personal headphone use and noisy urban environments. The study shows a novel model of gradually progressive SNHL induced by repeated exposure to moderate noise (8-kHz octave band noise, 90-dB sound pressure level) for 1 hr exposure per day in BALB/cCr mice. The results showed that the repeated exposure led to gradually progressive SNHL, which was dependent on the number of exposures, and resulted in permanent hearing loss after 5 exposures. Repeated exposure to noise causes a loss of synapses between the inner hair cells and the peripheral terminals of the auditory nerve fibers. Additionally, there is a reduction in the expression levels of c-fos and Arc, both of which are indicators of cochlear nerve responses to noise exposure. Oral administration of resveratrol (RSV, 50 mg/kg/day) during the noise exposure period significantly prevented the noise exposure-induced synapse loss and SNHL. Furthermore, the study found that RSV treatment prevented the noise-induced increase in the gene expression levels of the proinflammatory cytokine interleukin-1β in the cochlea. These results demonstrated the potential usefulness of RSV in preventing noise-induced SNHL in the animal model established as gradually progressive SNHL.
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Affiliation(s)
- Taro Yamaguchi
- Laboratory of Pharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan
| | - Masanori Yoneyama
- Laboratory of Pharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan
| | - Yusuke Onaka
- Laboratory of Pharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan
| | - Kiyokazu Ogita
- Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan
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Lorenzini I, Lorenzi C, Varnet L, Cabrera L. Reduced processing efficiency impacts auditory detection of amplitude modulation in children: Evidence from an experimental and modeling study. Hear Res 2024; 445:108982. [PMID: 38484447 DOI: 10.1016/j.heares.2024.108982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 02/06/2024] [Accepted: 02/20/2024] [Indexed: 04/07/2024]
Abstract
Auditory detection of the Amplitude Modulation (AM) of sounds, crucial for speech perception, improves until 10 years of age. This protracted development may not only be explained by sensory maturation, but also by improvements in processing efficiency: the ability to make efficient use of available sensory information. This hypothesis was tested behaviorally on 86 6-to-9-year-olds and 15 adults using AM-detection tasks assessing absolute sensitivity, masking, and response consistency in the AM domain. Absolute sensitivity was estimated by the detection thresholds of a sinusoidal AM applied to a pure-tone carrier; AM masking was estimated as the elevation of AM-detection thresholds produced when replacing the pure-tone carrier by a narrowband noise; response consistency was estimated using a double-pass paradigm where the same set of stimuli was presented twice. Results showed that AM sensitivity improved from childhood to adulthood, but did not change between 6 and 9 years. AM masking did not change with age, suggesting that the selectivity of perceptual AM filters was adult-like by 6 years. However, response consistency increased developmentally, supporting the hypothesis of reduced processing efficiency in early childhood. At the group level, double-pass data of children and adults were well simulated by a model of the human auditory system assuming a higher level of internal noise for children. At the individual level, for both children and adults, double-pass data were better simulated when assuming a sub-optimal decision strategy in addition to differences in internal noise. In conclusion, processing efficiency for AM detection is reduced in childhood. Moreover, worse AM detection was linked to both systematic and stochastic inefficiencies, in both children and adults.
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Affiliation(s)
- Irene Lorenzini
- Integrative Neuroscience and Cognition Center, CNRS and Université Paris Cité, 45 rue des Saints-Pères, 75006 Paris, France; Laboratoire Ethologie, Cognition, Développement, Université Paris Nanterre, 200 av. de la République, 9200, Nanterre, France.
| | - Christian Lorenzi
- Laboratoire des systèmes perceptifs, Département d'études cognitives, École normale supérieure, Université Paris Sciences et Lettres (PSL University), 29 rue d'Ulm, 75005 Paris, France
| | - Léo Varnet
- Laboratoire des systèmes perceptifs, Département d'études cognitives, École normale supérieure, Université Paris Sciences et Lettres (PSL University), 29 rue d'Ulm, 75005 Paris, France
| | - Laurianne Cabrera
- Integrative Neuroscience and Cognition Center, CNRS and Université Paris Cité, 45 rue des Saints-Pères, 75006 Paris, France
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Lehnardt Y, Barber JR, Berger-Tal O. Effects of wind turbine noise on songbird behavior during nonbreeding season. Conserv Biol 2024; 38:e14188. [PMID: 37768199 DOI: 10.1111/cobi.14188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023]
Abstract
Anthropogenic noise is one of the fastest growing, globally widespread pollutants, affecting countless species worldwide. Despite accumulating evidence of the negative impacts of wind turbines on wildlife, little is known about how the noise they generate affects ecological systems. Songbirds may be susceptible to noise pollution due to their reliance on vocal communication and thus, in this field study, we examined how songbirds are affected by wind turbine noise. We broadcasted noise produced by one wind turbine in a migratory stopover site during the nonbreeding season. Throughout the study, we repeatedly monitored the acoustic environment and songbird community before, during, and after the noise treatments with passive acoustic monitoring and mist netting. We employed generalized linear mixed effects models to assess the impact of experimental noise treatment on birds behavior and likelihood ratio tests to compare models with variables of interest with null models. The daily number of birds in the presence of wind turbine noise decreased by approximately 30% compared with the before and after phases. This reduction had a significant spatial pattern; the largest decrease was closer to the speaker and on its downwind side, fitting measured sound propagation. Although we found no impact on species diversity, two out of three most common species showed clear avoidance behavior: 45% and 36% decrease in abundance for the lesser whitethroat (Sylvia curruca) and Sardinian warbler (Sylvia melanocephala momus), respectively. In the after phase, there were lingering effects on the lesser whitethroat. The age structure of the lesser whitethroat population was affected because only juvenile birds showed avoidance behavior. No difference in avoidance extent was found between migratory and nonmigratory species, but the impacts of displacement on migrants during stopover are especially troubling from a conservation perspective. Our results stress the need to address the impacts of noise pollution on wildlife when planning noise-generating infrastructures, such as wind turbines, to allow for sustainable development without threatening already declining songbird populations.
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Affiliation(s)
- Yael Lehnardt
- Mitrani Department of Desert Ecology, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Israel
| | - Jesse R Barber
- Department of Biological Sciences, Boise State University, Boise, Idaho, USA
| | - Oded Berger-Tal
- Mitrani Department of Desert Ecology, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Israel
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10
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Tu Z, Tang L, Khan FU, Hu M, Shen H, Wang Y. Low-frequency noise impairs righting reflex behavior by disrupting central nervous system in the sea slug Onchidium reevesii. Sci Total Environ 2024; 918:170552. [PMID: 38309332 DOI: 10.1016/j.scitotenv.2024.170552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/28/2023] [Accepted: 01/27/2024] [Indexed: 02/05/2024]
Abstract
Anthropogenic noise has significantly increased due to human activities, posing a threat to the health and survival of marine organisms. However, current studies have often emphasized its effects on the physiological aspects of marine organisms, while ignored the relationship between the neuroendocrine system and behavior. This study aimed to evaluate the righting behavior and relevant physiological functions of the central nervous system (CNS) in sea slug (Onchidium reevesii) exposed to low-frequency noise and subsequent noise removal. The duration of the sea slugs' righting reflex increased with longer noise exposure time. The degree of neuronal cell damage and apoptosis were significantly increased and relevant gene expressions were affected (Glu, AChE, FMRFamide and CaMKII) (P < 0.05). After the removal of noise, the righting reflex speed gradually recovered, and the degree of neuronal cell damage, apoptosis and the expression levels of genes continued to decrease. Pearson correlation analysis showed that the righting time was positively correlated with CNS tissue and DNA damage, apoptosis rate, and negatively correlated with the expression levels of genes. Therefore, low-frequency noise exposure causes damage to the CNS of sea slugs, subsequently impairing their normal behavior. Sea slugs exhibited partial recovery within 384 h after removing noise. These findings provide valuable insights into the effects of low-frequency noise on the CNS and behavior of marine invertebrates.
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Affiliation(s)
- Zhihan Tu
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, College of Fisheries and Life Science, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Liusiqiao Tang
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, College of Fisheries and Life Science, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Fahim Ullah Khan
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, College of Fisheries and Life Science, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Menghong Hu
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, College of Fisheries and Life Science, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China
| | - Heding Shen
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, College of Fisheries and Life Science, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China.
| | - Youji Wang
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, College of Fisheries and Life Science, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China.
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Liu P, Xue X, Zhang C, Zhou H, Ding Z, Wang L, Jiang Y, Shen WD, Yang S, Wang F. Transcriptional-profile changes in the medial geniculate body after noise-induced tinnitus. Exp Biol Med (Maywood) 2024; 249:10057. [PMID: 38562529 PMCID: PMC10984379 DOI: 10.3389/ebm.2024.10057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 02/20/2024] [Indexed: 04/04/2024] Open
Abstract
Tinnitus is a disturbing condition defined as the occurrence of acoustic hallucinations with no actual sound. Although the mechanisms underlying tinnitus have been explored extensively, the pathophysiology of the disease is not completely understood. Moreover, genes and potential treatment targets related to auditory hallucinations remain unknown. In this study, we examined transcriptional-profile changes in the medial geniculate body after noise-induced tinnitus in rats by performing RNA sequencing and validated differentially expressed genes via quantitative polymerase chain reaction analysis. The rat model of tinnitus was established by analyzing startle behavior based on gap-pre-pulse inhibition of acoustic startles. We identified 87 differently expressed genes, of which 40 were upregulated and 47 were downregulated. Pathway-enrichment analysis revealed that the differentially enriched genes in the tinnitus group were associated with pathway terms, such as coronavirus disease COVID-19, neuroactive ligand-receptor interaction. Protein-protein-interaction networks were established, and two hub genes (Rpl7a and AC136661.1) were identified among the selected genes. Further studies focusing on targeting and modulating these genes are required for developing potential treatments for noise-induced tinnitus in patients.
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Affiliation(s)
- Peng Liu
- Medical School of Chinese PLA, Beijing, China
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
| | - Xinmiao Xue
- Medical School of Chinese PLA, Beijing, China
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
| | - Chi Zhang
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
| | - Hanwen Zhou
- Medical School of Chinese PLA, Beijing, China
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
| | - Zhiwei Ding
- Medical School of Chinese PLA, Beijing, China
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
| | - Li Wang
- Medical School of Chinese PLA, Beijing, China
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
| | - Yuke Jiang
- Medical School of Chinese PLA, Beijing, China
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
| | - Wei-Dong Shen
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
| | - Shiming Yang
- Medical School of Chinese PLA, Beijing, China
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, China
| | - Fangyuan Wang
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, China
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Bakay WMH, Cervantes B, Lao-Rodríguez AB, Johannesen PT, Lopez-Poveda EA, Furness DN, Malmierca MS. How 'hidden hearing loss' noise exposure affects neural coding in the inferior colliculus of rats. Hear Res 2024; 443:108963. [PMID: 38308936 DOI: 10.1016/j.heares.2024.108963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/15/2024] [Accepted: 01/20/2024] [Indexed: 02/05/2024]
Abstract
Exposure to brief, intense sound can produce profound changes in the auditory system, from the internal structure of inner hair cells to reduced synaptic connections between the auditory nerves and the inner hair cells. Moreover, noisy environments can also lead to alterations in the auditory nerve or to processing changes in the auditory midbrain, all without affecting hearing thresholds. This so-called hidden hearing loss (HHL) has been shown in tinnitus patients and has been posited to account for hearing difficulties in noisy environments. However, much of the neuronal research thus far has investigated how HHL affects the response characteristics of individual fibres in the auditory nerve, as opposed to higher stations in the auditory pathway. Human models show that the auditory nerve encodes sound stochastically. Therefore, a sufficient reduction in nerve fibres could result in lowering the sampling of the acoustic scene below the minimum rate necessary to fully encode the scene, thus reducing the efficacy of sound encoding. Here, we examine how HHL affects the responses to frequency and intensity of neurons in the inferior colliculus of rats, and the duration and firing rate of those responses. Finally, we examined how shorter stimuli are encoded less effectively by the auditory midbrain than longer stimuli, and how this could lead to a clinical test for HHL.
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Affiliation(s)
- Warren M H Bakay
- Cognitive and Auditory Neuroscience Laboratory, Institute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Spain; Institute for Biomedical Research of Salamanca, Salamanca, Spain
| | - Blanca Cervantes
- Cognitive and Auditory Neuroscience Laboratory, Institute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Spain; Institute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Spain; School of Medicine, University Anáhuac Puebla, Mexico
| | - Ana B Lao-Rodríguez
- Cognitive and Auditory Neuroscience Laboratory, Institute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Spain; Institute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Spain; Institute for Biomedical Research of Salamanca, Salamanca, Spain
| | - Peter T Johannesen
- Institute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Spain; Institute for Biomedical Research of Salamanca, Salamanca, Spain
| | - Enrique A Lopez-Poveda
- Institute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Spain; Institute for Biomedical Research of Salamanca, Salamanca, Spain; Department of Surgery, Faculty of Medicine, University of Salamanca, Spain
| | - David N Furness
- School of Life Sciences, Keele University, Keele, United Kingdom
| | - Manuel S Malmierca
- Cognitive and Auditory Neuroscience Laboratory, Institute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Spain; Institute of Neuroscience of Castilla y León (INCYL), University of Salamanca, Spain; Institute for Biomedical Research of Salamanca, Salamanca, Spain; Department of Biology and Pathology, Faculty of Medicine, University of Salamanca, Spain.
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13
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Fusch G, Mohamed S, Bakry A, Li EW, Dutta S, Helou SE, Fusch C. Analysis of noise levels in the neonatal intensive care unit: the impact of clinical microsystems. Eur J Pediatr 2024; 183:1245-1254. [PMID: 38095715 DOI: 10.1007/s00431-023-05335-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/06/2023] [Accepted: 11/08/2023] [Indexed: 03/20/2024]
Abstract
Reorganization of neonatal intensive care by introducing clinical microsystems may help to allocate nursing time more appropriately to the needs of patients. However, there is concern that cohorting infants according to acuity may enhance noise levels. This single-center study investigated the impact of reorganization of neonatal intensive care unit by implementing clinical microsystems in a Level III NICU on environmental noise. This prospective study measured 24-h noise levels over a period of 6 months during pre- and post-implementation of microsystems cohorting infants of similar acuity. Comparative analyses of the mixed acuity (i.e., before) and the cohorting (i.e., after) model were performed by creating daily profiles from continuous noise level measurements and calculating the length of exposure to predefined noise levels. Compared to baseline daytime measurements, noise levels were 3-6 dBA higher during physician handover. Noise levels were 2-3 dBA lower on weekends and 3-4 dBA lower at night, independent of the organizational model. The introduction of clinical microsystems slightly increased average noise levels for high-acuity pods (A and B) but produced a much more substantial decrease for low-acuity pods (E), leading to an overall reduction in unit-wide noise levels. Conclusion: Our data show that noise levels are more driven by human behavior than by technical devices. Implementation of microsystems may help to reduce noise exposure in the lower acuity pods in a NICU. What is Known: • Excessive noise levels can lead to adverse effects on the health and development of premature infants and other critically ill newborns. • The reorganization of the neonatal intensive care unit following the clinical microsystems principles might improve quality of care but also affect noise exposure of staff and patients. What is New: • The transition from a mixed -acuity to cohorting model is associated with an overall reduction in noise levels, particularly in low-acuity pods requiring less nursing care. • Nevertheless, baseline noise levels in both models exceeded the standard permissible limits.
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Affiliation(s)
- Gerhard Fusch
- Department of Pediatrics, Division of Neonatology, McMaster University, 1280 Main Street West, L8S 4K1, Hamilton, ON, Canada
| | - Saber Mohamed
- Department of Mechanical Engineering, McMaster University, Hamilton, Canada
| | - Ahmad Bakry
- Department of Pediatrics, Division of Neonatology, McMaster University, 1280 Main Street West, L8S 4K1, Hamilton, ON, Canada
| | - Edward W Li
- Department of Pediatrics, Division of Neonatology, McMaster University, 1280 Main Street West, L8S 4K1, Hamilton, ON, Canada
| | - Sourabh Dutta
- Department of Pediatrics, Division of Neonatology, McMaster University, 1280 Main Street West, L8S 4K1, Hamilton, ON, Canada
- Department of Pediatrics, Neonatology Unit, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - Salhab El Helou
- Department of Pediatrics, Division of Neonatology, McMaster University, 1280 Main Street West, L8S 4K1, Hamilton, ON, Canada
| | - Christoph Fusch
- Department of Pediatrics, Division of Neonatology, McMaster University, 1280 Main Street West, L8S 4K1, Hamilton, ON, Canada.
- Department of Pediatrics, Paracelsus Medical University Nuremberg, Nuremberg, Germany.
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14
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Ata Teneler A, Hassoy H. Evaluation of risk perception related with environmental noise among residents living in different vicinities of wind turbines. Int J Environ Health Res 2024; 34:1788-1799. [PMID: 37552843 DOI: 10.1080/09603123.2023.2245344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 08/03/2023] [Indexed: 08/10/2023]
Abstract
This cross-sectional study assessed residents' risk perceptions and associated factors in three rural areas by administering a face-to-face questionnaire to 282 subjects. The association between the perception of risk related to wind turbines and related factors such as noise and annoyance was analysed. Outdoor A-weighted sound pressure levels were measured for all. According to regression analysis, age (B: -0.008, 95% CI: -0.015/-0.002), education (B: 0.415, 95% CI: 0.148/-0.682), noise level day (B: -0.040, 95% CI: -0.068/-0. 013), noise annoyance indoors (B: 0.504, 95% CI: 0.227/0.781) and distance (B: 0.000, 95% CI: 0.000/0.000) had a significant effect on high risk perception (p < 0.05). This demonstrates that, in addition to noise, non-acoustic factors also influence risk perception. Ensuring community participation and considering distance before installation could prevent negative risk perceptions and annoyance. .
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Affiliation(s)
- Asli Ata Teneler
- Public Health Specialist, Bayrakli District Health Directorate, Izmir, Turkey
| | - Hur Hassoy
- Department of Public Health, Faculty of Medicine, Ege University, Izmir, Turkey
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15
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Fan J, Williamson DS. From the perspective of perceptual speech quality: The robustness of frequency bands to noise. J Acoust Soc Am 2024; 155:1916-1927. [PMID: 38456734 DOI: 10.1121/10.0025272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 02/22/2024] [Indexed: 03/09/2024]
Abstract
Speech quality is one of the main foci of speech-related research, where it is frequently studied with speech intelligibility, another essential measurement. Band-level perceptual speech intelligibility, however, has been studied frequently, whereas speech quality has not been thoroughly analyzed. In this paper, a Multiple Stimuli With Hidden Reference and Anchor (MUSHRA) inspired approach was proposed to study the individual robustness of frequency bands to noise with perceptual speech quality as the measure. Speech signals were filtered into thirty-two frequency bands with compromising real-world noise employed at different signal-to-noise ratios. Robustness to noise indices of individual frequency bands was calculated based on the human-rated perceptual quality scores assigned to the reconstructed noisy speech signals. Trends in the results suggest the mid-frequency region appeared less robust to noise in terms of perceptual speech quality. These findings suggest future research aiming at improving speech quality should pay more attention to the mid-frequency region of the speech signals accordingly.
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Affiliation(s)
- Junyi Fan
- Department of Computer Science and Engineering, The Ohio State University, Columbus, Ohio 43210, USA
| | - Donald S Williamson
- Department of Computer Science and Engineering, The Ohio State University, Columbus, Ohio 43210, USA
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16
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Münzel T, Daiber A, Hahad O. [Air pollution, noise and hypertension : Partners in crime]. Herz 2024; 49:124-133. [PMID: 38321170 DOI: 10.1007/s00059-024-05234-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/17/2024] [Indexed: 02/08/2024]
Abstract
Air pollution and traffic noise are two important environmental risk factors that endanger health in urban societies and often act together as "partners in crime". Although air pollution and noise often co-occur in urban environments, they have typically been studied separately, with numerous studies documenting consistent effects of individual exposure on blood pressure. In the following review article, we examine the epidemiology of air pollution and noise, especially regarding the cardiovascular risk factor arterial hypertension and the underlying pathophysiology. Both environmental stressors have been shown to lead to endothelial dysfunction, oxidative stress, pronounced vascular inflammation, disruption of circadian rhythms and activation of the autonomic nervous system, all of which promote the development of hypertension and cardiovascular diseases. From a societal and political perspective, there is an urgent need to point out the potential dangers of air pollution and traffic noise in the American Heart Association (AHA)/American College of Cardiology (ACC) prevention guidelines and the European Society of Cardiology (ESC) guidelines on prevention. Therefore, an essential goal for the future is to raise awareness of environmental risk factors as important and, in particular, preventable risk factors for cardiovascular diseases.
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Affiliation(s)
- T Münzel
- Zentrum für Kardiologie, Kardiologie I, Universitätsmedizin, Johannes-Gutenberg-Universität Mainz, Langenbeckstraße 1, 55131, Mainz, Deutschland.
| | - A Daiber
- Zentrum für Kardiologie, Kardiologie I, Universitätsmedizin, Johannes-Gutenberg-Universität Mainz, Langenbeckstraße 1, 55131, Mainz, Deutschland
| | - O Hahad
- Zentrum für Kardiologie, Kardiologie I, Universitätsmedizin, Johannes-Gutenberg-Universität Mainz, Langenbeckstraße 1, 55131, Mainz, Deutschland
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17
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Giuliani NP, Venkitakrishnan S, Wu YH. Input-related demands: vocoded sentences evoke different pupillometrics and subjective listening effort than sentences in speech-shaped noise. Int J Audiol 2024; 63:199-206. [PMID: 36519812 PMCID: PMC10947987 DOI: 10.1080/14992027.2022.2150901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 12/23/2022]
Abstract
OBJECTIVES The Framework for Effortful Listening (FUEL) suggests five input-related demands can alter listening effort: source, transmission, listener, message and context factors. We hypothesised that vocoded sentences represented a source factor degradation and sentences in speech-shaped noise represented a transmission factor degradation. We used pupillometry and a subjective scale to examine our hypothesis. DESIGN Participants listened to vocoded sentences and sentences in speech-shaped noise at several difficulty levels designed to produce similar word recognition abilities; they also listened to unprocessed sentences. Within-participant pupillometrics and subjective listening effort were analysed. Post-hoc analyses were performed to examine if word recognition accuracy differentially influenced pupil responses. STUDY SAMPLES Twenty young adults with normal hearing. RESULTS Baseline pupil diameter was significantly smaller, peak pupil dilation was significantly larger, peak pupil dilation latency was significantly shorter, and subjective listening effort was significantly greater for the vocoded sentences than the sentences-in-noise. Word recognition ability also affected pupillometrics, but only for the vocoded sentences. CONCLUSIONS Our findings suggest that source factor degradations result in greater listening effort than transmission factor degradations. Future research should address how clinical interventions tailored towards different input-related demands may lead to reduced listening effort and improve patient outcomes.
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Affiliation(s)
- Nicholas P. Giuliani
- Department of Otolaryngology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - Soumya Venkitakrishnan
- Department of Communication Sciences and Disorders, University of Iowa, Iowa City, IA, USA
| | - Yu-Hsiang Wu
- Department of Otolaryngology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
- Department of Communication Sciences and Disorders, University of Iowa, Iowa City, IA, USA
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18
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Drouin JR, Flores S. Effects of training length on adaptation to noise-vocoded speech. J Acoust Soc Am 2024; 155:2114-2127. [PMID: 38488452 DOI: 10.1121/10.0025273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 02/22/2024] [Indexed: 03/19/2024]
Abstract
Listeners show rapid perceptual learning of acoustically degraded speech, though the amount of exposure required to maximize speech adaptation is unspecified. The current work used a single-session design to examine the length of auditory training on perceptual learning for normal hearing listeners exposed to eight-channel noise-vocoded speech. Participants completed short, medium, or long training using a two-alternative forced choice sentence identification task with feedback. To assess learning and generalization, a 40-trial pre-test and post-test transcription task was administered using trained and novel sentences. Training results showed all groups performed near ceiling with no reliable differences. For test data, we evaluated changes in transcription accuracy using separate linear mixed models for trained or novel sentences. In both models, we observed a significant improvement in transcription at post-test relative to pre-test. Critically, the three training groups did not differ in the magnitude of improvement following training. Subsequent Bayes factors analysis evaluating the test by group interaction provided strong evidence in support of the null hypothesis. For these stimuli and procedure, results suggest increased training does not necessarily maximize learning outcomes; both passive and trained experience likely supported adaptation. Findings may contribute to rehabilitation recommendations for listeners adapting to degraded speech signals.
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Affiliation(s)
- Julia R Drouin
- Division of Speech and Hearing Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Stephany Flores
- Department of Communication Sciences and Disorders, California State University Fullerton, Fullerton, California 92831, USA
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19
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Carney LH. Neural Fluctuation Contrast as a Code for Complex Sounds: The Role and Control of Peripheral Nonlinearities. Hear Res 2024; 443:108966. [PMID: 38310710 PMCID: PMC10923127 DOI: 10.1016/j.heares.2024.108966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/14/2024] [Accepted: 01/26/2024] [Indexed: 02/06/2024]
Abstract
The nonlinearities of the inner ear are often considered to be obstacles that the central nervous system has to overcome to decode neural responses to sounds. This review describes how peripheral nonlinearities, such as saturation of the inner-hair-cell response and of the IHC-auditory-nerve synapse, are instead beneficial to the neural encoding of complex sounds such as speech. These nonlinearities set up contrast in the depth of neural-fluctuations in auditory-nerve responses along the tonotopic axis, referred to here as neural fluctuation contrast (NFC). Physiological support for the NFC coding hypothesis is reviewed, and predictions of several psychophysical phenomena, including masked detection and speech intelligibility, are presented. Lastly, a framework based on the NFC code for understanding how the medial olivocochlear (MOC) efferent system contributes to the coding of complex sounds is presented. By modulating cochlear gain control in response to both sound energy and fluctuations in neural responses, the MOC system is hypothesized to function not as a simple feedback gain-control device, but rather as a mechanism for enhancing NFC along the tonotopic axis, enabling robust encoding of complex sounds across a wide range of sound levels and in the presence of background noise. Effects of sensorineural hearing loss on the NFC code and on the MOC feedback system are presented and discussed.
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Affiliation(s)
- Laurel H Carney
- Depts. of Biomedical Engineering, Neuroscience, and Electrical & Computer Engineering University of Rochester, Rochester, NY, USA.
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20
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Wicki B, Vienneau D, Schäffer B, Müller TJ, Raub U, Widrig J, Pervilhac C, Röösli M. Acute effects of military aircraft noise on sedative and analgesic drug administrations in psychiatric patients: A case-time series analysis. Environ Int 2024; 185:108501. [PMID: 38368719 DOI: 10.1016/j.envint.2024.108501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/08/2024] [Accepted: 02/12/2024] [Indexed: 02/20/2024]
Abstract
BACKGROUND Existing evidence suggests that psychiatric patients are highly noise sensitive, and that noise exposure increases the risk for adverse mental health outcomes, such as psychiatric hospitalizations and even suicide. To investigate acute effects of noise in this vulnerable population, we assessed short-term associations between fighter jet noise and on-demand sedative and analgesic drug administrations in a psychiatric clinic located close to a military airfield in Switzerland. METHODS We applied a case time series analysis with an hourly time resolution using distributed-lag models. Analysis was adjusted for long-term and seasonal trends, day of week, time of day, time-varying weather conditions and the week of stay. Noise exposure (hourly A-weighted equivalent continuous sound pressure levels (LAeq)) was modelled using detailed flight plans and noise footprints for different fighter jet and route combinations. Outcome data were available from the clinic's records. OUTCOMES During the study period (06/2016-12/2021), 23,486 flights occurred. 5,968 clinical stays with a median length of 41 days (IQR: 28d, 50d) were recorded. The odds ratio (OR) for medication administration over the lag period of 3 hours after exposure was 1.016 (95 %CI: 1.006, 1.026) per 10 dB LAeq for sedatives and 1.032 (95 %CI: 1.016, 1.048) per 10 dB for analgesics. Effects were larger in multimorbid patients. INTERPRETATION Case time series analysis is a novel method to investigate transient associations in observational data while minimizing risk of bias. Using an objectively recorded outcome measure, our results demonstrate that psychiatric patients are a vulnerable population, in which noise exposure can lead to symptom exacerbations and adverse events.
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Affiliation(s)
- Benedikt Wicki
- Swiss TPH (Swiss Tropical and Public Health Institute), Allschwil, Switzerland; University of Basel, Basel, Switzerland.
| | - Danielle Vienneau
- Swiss TPH (Swiss Tropical and Public Health Institute), Allschwil, Switzerland; University of Basel, Basel, Switzerland
| | - Beat Schäffer
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland
| | - Thomas J Müller
- Translational Research Centre, University Hospital of Psychiatry and Psychotherapy University of Bern, Bern, Switzerland; Private Clinic Meiringen, Meiringen, Switzerland
| | - Ulrich Raub
- Private Clinic Meiringen, Meiringen, Switzerland
| | | | - Charlotte Pervilhac
- Private Clinic Meiringen, Meiringen, Switzerland; Institute of Psychology, Health Psychology and Behavioural Medicine, University of Bern, Bern, Switzerland
| | - Martin Röösli
- Swiss TPH (Swiss Tropical and Public Health Institute), Allschwil, Switzerland; University of Basel, Basel, Switzerland
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21
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Vandeninden B, De Clercq EM, Devleesschauwer B, Otavova M, Bouland C, Faes C. Cluster pattern analysis of environmental stressors and quantifying their impact on all-cause mortality in Belgium. BMC Public Health 2024; 24:536. [PMID: 38378493 DOI: 10.1186/s12889-024-18011-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 02/06/2024] [Indexed: 02/22/2024] Open
Abstract
Environmental stress represents an important burden on health and leads to a considerable number of diseases, hospitalisations, and excess mortality. Our study encompasses a representative sample size drawn from the Belgian population in 2016 (n = 11.26 million, with a focus on n = 11.15 million individuals). The analysis is conducted at the geographical level of statistical sectors, comprising a total of n = 19,794 sectors, with a subset of n = 18,681 sectors considered in the investigation. We integrated multiple parameters at the finest spatial level and constructed three categories of environmental stress through clustering: air pollution, noise stress and stress related to specific land-use types. We observed identifiable patterns in the spatial distribution of stressors within each cluster category. We assessed the relationship between age-standardized all-cause mortality rates (ASMR) and environmental stressors. Our research found that especially very high air pollution values in areas where traffic is the dominant local component of air pollution (ASMR + 14,8%, 95% CI: 10,4 - 19,4%) and presence of industrial land (ASMR + 14,7%, 95% CI: 9,4 - 20,2%) in the neighbourhood are associated with an increased ASMR. Cumulative exposure to multiple sources of unfavourable environmental stress (simultaneously high air pollution, high noise, presence of industrial land or proximity of primary/secondary roads and lack of green space) is associated with an increase in ASMR (ASMR + 26,9%, 95% CI: 17,1 - 36,5%).
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Affiliation(s)
- Bram Vandeninden
- School of Public Health, Université Libre de Bruxelles, Brussels, Belgium.
- Department of Epidemiology and Public Health, Sciensano, Brussels, Belgium.
- Department of Chemical and Physical Health Risks, Sciensano, Brussels, Belgium.
| | - Eva M De Clercq
- Department of Chemical and Physical Health Risks, Sciensano, Brussels, Belgium
| | - Brecht Devleesschauwer
- Department of Epidemiology and Public Health, Sciensano, Brussels, Belgium
- Department of Translational Physiology, Infectiology and Public Health, Ghent University, Merelbeke, Belgium
| | - Martina Otavova
- Department of Epidemiology and Public Health, Sciensano, Brussels, Belgium
- Center for Demographic Research, UCLouvain, Louvain-La-Neuve, Belgium
- Interuniversity Institute for Biostatistics and Statistical Bioinformatics (I-BioStat), Data Science, Diepenbeek, Hasselt, Belgium
| | - Catherine Bouland
- School of Public Health, Université Libre de Bruxelles, Brussels, Belgium
| | - Christel Faes
- Interuniversity Institute for Biostatistics and Statistical Bioinformatics (I-BioStat), Data Science, Diepenbeek, Hasselt, Belgium
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22
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Bizup B, Brutsaert S, Cunningham CL, Thathiah A, Tzounopoulos T. Cochlear zinc signaling dysregulation is associated with noise-induced hearing loss, and zinc chelation enhances cochlear recovery. Proc Natl Acad Sci U S A 2024; 121:e2310561121. [PMID: 38354264 PMCID: PMC10895357 DOI: 10.1073/pnas.2310561121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 01/08/2024] [Indexed: 02/16/2024] Open
Abstract
Exposure to loud noise triggers sensory organ damage and degeneration that, in turn, leads to hearing loss. Despite the troublesome impact of noise-induced hearing loss (NIHL) in individuals and societies, treatment strategies that protect and restore hearing are few and insufficient. As such, identification and mechanistic understanding of the signaling pathways involved in NIHL are required. Biological zinc is mostly bound to proteins, where it plays major structural or catalytic roles; however, there is also a pool of unbound, mobile (labile) zinc. Labile zinc is mostly found in vesicles in secretory tissues, where it is released and plays a critical signaling role. In the brain, labile zinc fine-tunes neurotransmission and sensory processing. However, injury-induced dysregulation of labile zinc signaling contributes to neurodegeneration. Here, we tested whether zinc dysregulation occurs and contributes to NIHL in mice. We found that ZnT3, the vesicular zinc transporter responsible for loading zinc into vesicles, is expressed in cochlear hair cells and the spiral limbus, with labile zinc also present in the same areas. Soon after noise trauma, ZnT3 and zinc levels are significantly increased, and their subcellular localization is vastly altered. Disruption of zinc signaling, either via ZnT3 deletion or pharmacological zinc chelation, mitigated NIHL, as evidenced by enhanced auditory brainstem responses, distortion product otoacoustic emissions, and number of hair cell synapses. These data reveal that noise-induced zinc dysregulation is associated with cochlear dysfunction and recovery after NIHL, and point to zinc chelation as a potential treatment for mitigating NIHL.
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Affiliation(s)
- Brandon Bizup
- Pittsburgh Hearing Research Center, Department of Otolaryngology, University of Pittsburgh, Pittsburgh, PA 15261
- Department of Neurobiology, University of Pittsburgh, Pittsburgh, PA 15261
| | - Sofie Brutsaert
- Pittsburgh Hearing Research Center, Department of Otolaryngology, University of Pittsburgh, Pittsburgh, PA 15261
| | - Christopher L Cunningham
- Pittsburgh Hearing Research Center, Department of Otolaryngology, University of Pittsburgh, Pittsburgh, PA 15261
- Department of Neurobiology, University of Pittsburgh, Pittsburgh, PA 15261
| | - Amantha Thathiah
- Department of Neurobiology, University of Pittsburgh, Pittsburgh, PA 15261
| | - Thanos Tzounopoulos
- Pittsburgh Hearing Research Center, Department of Otolaryngology, University of Pittsburgh, Pittsburgh, PA 15261
- Department of Neurobiology, University of Pittsburgh, Pittsburgh, PA 15261
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23
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Elmazoska I, Mäki-Torkko E, Granberg S, Widén S. Associations Between Recreational Noise Exposure and Hearing Function in Adolescents and Young Adults: A Systematic Review. J Speech Lang Hear Res 2024; 67:688-710. [PMID: 38324255 DOI: 10.1044/2023_jslhr-23-00397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
PURPOSE There is an increasing concern regarding hazardous recreational noise exposure among adolescents and young adults. Daily exposure to loud sound levels over a long period of time can increase the risk of noise-induced hearing loss. The full extent of the impact of recreational noise on hearing is not yet fully understood. The purpose of this review was to synthesize research that investigated hearing function in relation to recreational noise exposure in adolescents and young adults. METHOD A systematic literature search of five databases covering the years 2000-2023 was performed. The articles included investigated audiological measurements of hearing function in relation to recreational noise exposure. RESULTS Four hundred sixty records were identified, of which 20 met the inclusion criteria and were included in the results. This review showed that although some recreational noise activities can be potentially harmful, there is an unclear relationship between exposure and outcome. Some findings indicated hearing threshold shifts or reduced otoacoustic emission amplitudes after recreational noise exposure, but most changes were short term and in the extended high-frequency range. CONCLUSIONS There seemed to be inconsistencies regarding the utilization of methods of measuring exposure and outcome between studies. This might be one reason for the differing results in studies on the reported impact on hearing function from recreational noise exposure. To draw more certain conclusions about long-term effects, there is a need for longitudinal research that utilizes sound level measurements to assess low and high degrees of recreational noise exposure in relation to hearing function. SUPPLEMENTAL MATERIAL https://doi.org/10.23641/asha.25114193.
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Affiliation(s)
- Iris Elmazoska
- School of Health Sciences, Örebro University, Sweden
- Audiological Research Centre, Faculty of Medicine and Health, Örebro University, Sweden
| | - Elina Mäki-Torkko
- Audiological Research Centre, Faculty of Medicine and Health, Örebro University, Sweden
- School of Medical Sciences, Örebro University, Sweden
| | - Sarah Granberg
- School of Health Sciences, Örebro University, Sweden
- Audiological Research Centre, Faculty of Medicine and Health, Örebro University, Sweden
- School of Medical Sciences, Örebro University, Sweden
| | - Stephen Widén
- School of Health Sciences, Örebro University, Sweden
- Audiological Research Centre, Faculty of Medicine and Health, Örebro University, Sweden
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24
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Ellenbogen JM, Kellam CB, Hankard M. Noise-induced sleep disruption from wind turbines: scientific updates and acoustical standards. Sleep 2024; 47:zsad286. [PMID: 37942938 DOI: 10.1093/sleep/zsad286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/30/2023] [Indexed: 11/10/2023] Open
Abstract
Wind energy appears to place global environmental benefits against local human health, particularly sleep. The result is a significant challenge to wind-energy development for the achievement of large-scale alternative energy. Our purpose is to examine noise from wind turbines and its potential to disrupt sleep, to examine the human health literature addressing these concerns, and to provide insight into how developers and communities can employ these concepts to pursue wind energy without impacting human health. The latest and most rigorous research on noise from wind turbines points to healthy sleep, when turbines are sited reasonably. This includes audible noise, low-frequency noise, and infrasound. Recent advances in acoustical standards provide practical methods to ensure adherence to these scientific findings. There now exist key data concerning wind-turbine noise, and its impact on sleep. Knowing that information, and how to deploy it with modern engineering standards should simultaneously facilitate wind development and protect human health.
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Affiliation(s)
| | - Colleen B Kellam
- Department of Aeronautical Engineering, United States Air Force Academy, Colorado Springs, CO, USA
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25
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Basner M, Smith MG. The effects on sleep play a critical role in the long-term health consequences of noise exposure. Sleep 2024; 47:zsad314. [PMID: 38079452 PMCID: PMC10851844 DOI: 10.1093/sleep/zsad314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024] Open
Affiliation(s)
- Mathias Basner
- Unit for Experimental Psychiatry, Division of Sleep and Chronobiology, Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Michael G Smith
- School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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26
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Jiang Q, Liang X, Ye T, Zhang Y, Lou B. Metabonomics and Transcriptomics Analyses Reveal the Development Process of the Auditory System in the Embryonic Development Period of the Small Yellow Croaker under Background Noise. Int J Mol Sci 2024; 25:1954. [PMID: 38396633 PMCID: PMC10888356 DOI: 10.3390/ijms25041954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/25/2024] [Accepted: 01/30/2024] [Indexed: 02/25/2024] Open
Abstract
Underwater noise pollution has become a potential threat to aquatic animals in the natural environment. The main causes of such pollution are frequent human activities creating underwater environmental noise, including commercial shipping, offshore energy platforms, scientific exploration activities, etc. However, in aquaculture environments, underwater noise pollution has also become an unavoidable problem due to background noise created by aquaculture equipment. Some research has shown that certain fish show adaptability to noise over a period of time. This could be due to fish's special auditory organ, i.e., their "inner ear"; meanwhile, otoliths and sensory hair cells are the important components of the inner ear and are also essential for the function of the auditory system. Recently, research in respect of underwater noise pollution has mainly focused on adult fish, and there is a lack of the research on the effects of underwater noise pollution on the development process of the auditory system in the embryonic development period. Thus, in this study, we collected embryo-larval samples of the small yellow croaker (Larimichthys polyactis) in four important stages of otic vesicle development through artificial breeding. Then, we used metabonomics and transcriptomics analyses to reveal the development process of the auditory system in the embryonic development period under background noise (indoor and underwater environment sound). Finally, we identified 4026 differentially expressed genes (DEGs) and 672 differential metabolites (DMs), including 37 DEGs associated with the auditory system, and many differences mainly existed in the neurula stage (20 h of post-fertilization/20 HPF). We also inferred the regulatory mode and process of some important DEGs (Dnmt1, CPS1, and endothelin-1) in the early development of the auditory system. In conclusion, we suggest that the auditory system development of L. polyactis begins at least in the neurula stage or earlier; the other three stages (tail bud stage, caudal fin fold stage, and heart pulsation stage, 28-35 HPF) mark the rapid development period. We speculate that the effect of underwater noise pollution on the embryo-larval stage probably begins even earlier.
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Affiliation(s)
| | | | | | | | - Bao Lou
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Hydrobiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310000, China; (Q.J.); (X.L.); (T.Y.); (Y.Z.)
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27
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Kataoka H, Yoshitomi Y, Hirai H, Takada M. An awareness survey on childcare facilities and acoustic environment in Japan's residential areas. JASA Express Lett 2024; 4:023601. [PMID: 38345470 DOI: 10.1121/10.0024879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/26/2024] [Indexed: 02/15/2024]
Abstract
A study conducted in Japan aimed to understand how childcare facilities should coexist with the local community. The researchers used a sound survey, demographic survey, and logistic regression analysis to study residents' noise awareness in various areas. They found that higher land prices led to lower approval of new childcare facilities. The study also revealed that those more sensitive to noise and less willing to participate in public events at childcare facilities were more significantly opposed to the establishment of new facilities.
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Affiliation(s)
- Hiroko Kataoka
- Office for Diversity and Inclusion, The University of Electro-Communications, Chofu, Tokyo 182-8585, Japan
| | - Yuki Yoshitomi
- Graduate School of Design, Kyushu University, Minamiku, Fukuoka 815-8540, Japan
| | - Haruto Hirai
- Graduate School of Design, Kyushu University, Minamiku, Fukuoka 815-8540, Japan
| | - Masayuki Takada
- Faculty of Design, Kyushu University, Minamiku, Fukuoka 815-8540, , , ,
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28
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Shi M, Cao L, Ding D, Yu W, Lv P, Yu N. Effects of Noise Damage on the Purinergic Signal of Cochlear Spiral Ganglion Cells in Guinea Pigs. Mol Biotechnol 2024; 66:321-331. [PMID: 37145220 DOI: 10.1007/s12033-023-00755-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 04/16/2023] [Indexed: 05/06/2023]
Abstract
To observe the expression changes of P2 protein in cochlear spiral ganglion cells before and after noise injury, and to explore the relationship between the changes of purinergic receptors in spiral ganglion cells and noise-induced hearing loss, so that the signal transduction of purinergic receptors can be used to treat SNHL The target point provides a theoretical basis. The experimental animals were randomly divided into normal and experimental groups. The experimental group was given 120 dB white noise continuous exposure for 10 days and 3 h a day. The auditory brainstem response was measured before and after the noise exposure. After the noise exposure, the two groups of animals were collected. Do immunofluorescence staining, western blot, fluorescence real-time quantitative PCR to observe the expression of P2 protein. The average hearing threshold of the animals in the experimental group increased to 38.75 ± 6.44 dB SPL after 7 days of noise exposure, and the high-frequency hearing loss was lower and severe; the average hearing threshold increased to 54.38 ± 6.80 dB SPL after 10 days of noise exposure, and the hearing loss at 4 k Hz was relatively high. Light; Frozen sections of cochlear spiral ganglion cells and staining of isolated spiral ganglion cells found that P2X2, P2X3, P2X4, P2X7, P2Y2, and P2Y4 proteins were all expressed in cochlear spiral ganglion cells before noise exposure. Among them, P2X3 expression increased and P2X4, the down-regulation of P2Y2 expression was statistically significant (P < 0.05); Western blot and real-time quantitative PCR detection results showed that the expression of P2X3 was significantly increased after noise exposure than before noise exposure (P < 0.05), and P2X4 and P2Y2 were expressed after noise exposure The amount was significantly lower than before noise exposure (P < 0.05). (Figure. 4). After noise exposure, the expression of P2 protein is upregulated or downregulated. By affecting the Ca2+ cycle, the transmission of sound signals to the auditory center is blocked, which provides a theoretical basis for the signal transduction of purinergic receptors to become a target for the treatment of SNHL.
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Affiliation(s)
- Min Shi
- Suining Central Hospital, Suining, 629000, China
- Senior Department of Otolaryngology-Head & Neck Surgery, The Sixth Medical Center of PLA General Hospital, Beijing, 100000, China
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, 100000, China
- State Key Lab of Hearing Science, Ministry of Education, Beijing, 100000, China
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing, 100000, China
| | - Lei Cao
- Suining Central Hospital, Suining, 629000, China
| | - Daxiong Ding
- Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, China
| | - Wenxing Yu
- Suining Central Hospital, Suining, 629000, China
| | - Ping Lv
- Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, China
| | - Ning Yu
- Senior Department of Otolaryngology-Head & Neck Surgery, The Sixth Medical Center of PLA General Hospital, Beijing, 100000, China.
- National Clinical Research Center for Otolaryngologic Diseases, Beijing, 100000, China.
- State Key Lab of Hearing Science, Ministry of Education, Beijing, 100000, China.
- Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing, 100000, China.
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29
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Charlton PE, Burke K, Kobrina A, Lauer AM, Dent ML. The perception of ultrasonic vocalizations by laboratory mice following intense noise exposures. J Acoust Soc Am 2024; 155:867-878. [PMID: 38310604 PMCID: PMC10838193 DOI: 10.1121/10.0024614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 01/02/2024] [Accepted: 01/11/2024] [Indexed: 02/06/2024]
Abstract
Noise-induced hearing loss interacts with age, sex, and listening conditions to affect individuals' perception of ecologically relevant stimuli like speech. The present experiments assessed the impact of age and sex on vocalization detection by noise-exposed mice trained to detect a downsweep or complex ultrasonic vocalization in quiet or in the presence of a noise background. Daily thresholds before and following intense noise exposure were collected longitudinally and compared across several factors. All mice, regardless of age, sex, listening condition, or stimulus type showed their poorest behavioral sensitivity immediately after the noise exposure. There were varying degrees of recovery over time and across factors. Old-aged mice had greater threshold shifts and less recovery compared to middle-aged mice. Mice had larger threshold shifts and less recovery for downsweeps than for complex vocalizations. Female mice were more sensitive, had smaller post-noise shifts, and had better recovery than males. Thresholds in noise were higher and less variable than thresholds in quiet, but there were comparable shifts and recovery. In mice, as in humans, the perception of ecologically relevant stimuli suffers after an intense noise exposure, and results differ from simple tone detection findings.
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Affiliation(s)
- Payton E Charlton
- Department of Psychology, University at Buffalo, The State University of New York, Buffalo, New York 14260, USA
| | - Kali Burke
- Department of Psychology, University at Buffalo, The State University of New York, Buffalo, New York 14260, USA
| | - Anastasiya Kobrina
- Department of Psychology, University at Buffalo, The State University of New York, Buffalo, New York 14260, USA
| | - Amanda M Lauer
- Department of Otolaryngology-Head and Neck Surgery and Center for Hearing and Balance, Johns Hopkins University, Baltimore, Maryland 21287, USA
| | - Micheal L Dent
- Department of Psychology, University at Buffalo, The State University of New York, Buffalo, New York 14260, USA
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30
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Hom KN, Quigley TD, Rodriguez RD, Gdanski SG, Lazrinth XI, Jones R, Forlano PM. Characterization of anthropogenic noise and oyster toadfish (Opsanus tau) calling behavior in urban and small-town coastal soundscapesa). J Acoust Soc Am 2024; 155:1230-1239. [PMID: 38341750 DOI: 10.1121/10.0024763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 01/18/2024] [Indexed: 02/13/2024]
Abstract
The oyster toadfish (Opsanus tau) is an ideal model to examine the effects of anthropogenic noise on behavior because they rely on acoustic signals for mate attraction and social interactions. We predict that oyster toadfish have acclimated to living in noise-rich environments because they are common in waterways of urban areas, like New York City (NYC). We used passive acoustic monitoring at two locations to see if calling behavior patterns are altered in areas of typically high boat traffic versus low boat traffic (Pier 40, NYC, NY, and Eel Pond, Woods Hole, MA, respectively). We hypothesized that toadfish in NYC would adjust their circadian calling behavior in response to daily anthropogenic noise patterns. We quantified toadfish calls and ship noise over three 24-h periods in the summer reproductive period at both locations. We observed an inverse relationship between the duration of noise and the number of toadfish calls at Pier 40 in comparison to Eel Pond. Additionally, toadfish at Pier 40 showed significant differences in peak calling behavior compared to Eel Pond. Therefore, oyster toadfish may have acclimated to living in an urban environment by potentially altering their communication behavior in the presence of boat noise.
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Affiliation(s)
- Kelsey N Hom
- Subprogram in Ecology, Evolutionary Biology and Behavior, The Graduate Center, City University of New York (CUNY), New York, New York 10031, USA
| | - Thomas D Quigley
- Subprogram in Ecology, Evolutionary Biology and Behavior, The Graduate Center, City University of New York (CUNY), New York, New York 10031, USA
| | - Rachel D Rodriguez
- Department of Biology, Brooklyn College, City University of New York (CUNY), Brooklyn, New York 11210, USA
| | - Sydney G Gdanski
- Department of Biology, Brooklyn College, City University of New York (CUNY), Brooklyn, New York 11210, USA
| | - Xylo I Lazrinth
- Department of Biology, Brooklyn College, City University of New York (CUNY), Brooklyn, New York 11210, USA
| | | | - Paul M Forlano
- Subprogram in Ecology, Evolutionary Biology and Behavior, The Graduate Center, City University of New York (CUNY), New York, New York 10031, USA
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31
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Main M, Skoe E. Heightened OAEs in young adult musicians: Influence of current noise exposure and training recency. Hear Res 2024; 442:108925. [PMID: 38141520 PMCID: PMC10843712 DOI: 10.1016/j.heares.2023.108925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 11/26/2023] [Accepted: 12/03/2023] [Indexed: 12/25/2023]
Abstract
Otoacoustic emissions (OAEs) are a non-invasive metric of cochlear function. Studies of OAEs in musicians have yielded mixed results, ranging from evidence of diminished OAEs in musicians-suggesting noise-induced hearing loss-to no difference when compared to non-musicians, or even a trend for stronger OAEs in musicians. The goal of this study was to use a large sample of college students with normal hearing (n = 160) to compare OAE SNRs in musicians and non-musicians and to explore potential effects of training recency and noise exposure on OAEs in these cohorts. The musician cohort included both active musicians (who at the time of enrollment practiced at least weekly) and past musicians (who had at least 6 years of training). All participants completed a questionnaire about recent noise exposure (previous 12 months), and a subset of participants (71 musicians and 15 non-musicians) wore a personal noise dosimeter for one week to obtain a more nuanced and objective measure of exposure to assess how different exposure levels may affect OAEs before the emergence of a clinically significant hearing loss. OAEs were tested using both transient-evoked OAEs (TEOAEs) and distortion-product OAEs (DPOAEs). As predicted from the literature, musicians experienced significantly higher noise levels than non-musicians based on both subjective (self-reported) and objective measures. Yet we found stronger TEOAEs and DPOAEs in musicians compared to non-musicians in the ∼1-5 kHz range. Comparisons between past and active musicians suggest that enhanced cochlear function in young adult musicians does not require active, ongoing musical practice. Although there were no significant relations between OAEs and noise exposure as measured by dosimetry or questionnaire, active musicians had weaker DPOAEs than past musicians when the entire DPOAE frequency range was considered (up to ∼16 kHz), consistent with a subclinical noise-induced hearing loss that only becomes apparent when active musicians are contrasted with a cohort of individuals with comparable training but without the ongoing risks of noise exposure. Our findings suggest, therefore, that separate norms should be developed for musicians for earlier detection of incipient hearing loss. Potential explanations for enhanced cochlear function in musicians include pre-existing (inborn or demographic) differences, training-related enhancements of cochlear function (e.g., upregulation of prestin, stronger efferent feedback mechanisms), or a combination thereof. Further studies are needed to determine if OAE enhancements offer musicians protection against damage caused by noise exposure.
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Affiliation(s)
- Morgan Main
- Department of Speech, Language, and Hearing Sciences, United States; Department of Physiology and Neurobiology, United States; University of Connecticut, Storrs, CT 06269, United States; University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, United States
| | - Erika Skoe
- Department of Speech, Language, and Hearing Sciences, United States; Department of Psychological Sciences, Cognitive Sciences Program, Connecticut Institute for Brain and Cognitive Sciences, United States; University of Connecticut, Storrs, CT 06269, United States.
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32
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Kim SE, Chernyak BR, Seleznova O, Keshet J, Goldrick M, Bradlow AR. Automatic recognition of second language speech-in-noise. JASA Express Lett 2024; 4:025204. [PMID: 38350077 DOI: 10.1121/10.0024877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 01/21/2024] [Indexed: 02/15/2024]
Abstract
Measuring how well human listeners recognize speech under varying environmental conditions (speech intelligibility) is a challenge for theoretical, technological, and clinical approaches to speech communication. The current gold standard-human transcription-is time- and resource-intensive. Recent advances in automatic speech recognition (ASR) systems raise the possibility of automating intelligibility measurement. This study tested 4 state-of-the-art ASR systems with second language speech-in-noise and found that one, whisper, performed at or above human listener accuracy. However, the content of whisper's responses diverged substantially from human responses, especially at lower signal-to-noise ratios, suggesting both opportunities and limitations for ASR--based speech intelligibility modeling.
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Affiliation(s)
- Seung-Eun Kim
- Department of Linguistics, Northwestern University, Evanston, Illinois 60208, USA
| | - Bronya R Chernyak
- Faculty of Electrical & Computer Engineering, Technion-Israel Institute of Technology, Haifa 3200003, , , , , ,
| | - Olga Seleznova
- Faculty of Electrical & Computer Engineering, Technion-Israel Institute of Technology, Haifa 3200003, , , , , ,
| | - Joseph Keshet
- Faculty of Electrical & Computer Engineering, Technion-Israel Institute of Technology, Haifa 3200003, , , , , ,
| | - Matthew Goldrick
- Department of Linguistics, Northwestern University, Evanston, Illinois 60208, USA
| | - Ann R Bradlow
- Department of Linguistics, Northwestern University, Evanston, Illinois 60208, USA
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33
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Green N, Torija AJ, Ramos-Romero C. Perception of noise from unmanned aircraft systems: Efficacy of metrics for indoor and outdoor listener positions. J Acoust Soc Am 2024; 155:915-929. [PMID: 38310607 DOI: 10.1121/10.0024522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 01/05/2024] [Indexed: 02/06/2024]
Abstract
This paper presents the results of a listening experiment designed to assess annoyance and perceived loudness (PL) for several unmanned aircraft system (UAS) operations, with the listener simulated in indoor and outdoor positions. This research investigated (i) how participant responses change depending on UAS operation, (ii) which broadband metrics are most suitable for representing annoyance and PL, (iii) differences in noise level required to result in equal participant responses to different operations, and (iv) which sound quality metrics (SQMs) are significant for UAS noise perception. Results indicate annoyance and PL responses were greatest for landing operations with flyovers being the least annoying or loud. LAeq, LASmax, and loudness (N5) were the strongest predictors in representing annoyance. Offset analysis predicted small differences in annoyance responses between flyovers and other operations, but also indicated that flyovers would require an increase to LASmax of 3.3 to 6.3 dB compared to other operations to achieve equal PL. Loudness was the most significant SQM, with minor contributions from impulsivity for annoyance and PL when outside, and tonality for PL when indoors. These findings contribute to the understanding of UAS noise perception for the development of metrics and assessment methods accounting for the characteristics of UAS operations.
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Affiliation(s)
- Nathan Green
- Acoustics Research Centre, University of Salford, Manchester, M5 4WT, United Kingdom
| | - Antonio J Torija
- Acoustics Research Centre, University of Salford, Manchester, M5 4WT, United Kingdom
| | - Carlos Ramos-Romero
- Acoustics Research Centre, University of Salford, Manchester, M5 4WT, United Kingdom
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34
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Dzhambov AM, Lercher P, Botteldooren D. Childhood sound disturbance and sleep problems in Alpine valleys with high levels of traffic exposures and greenspace. Environ Res 2024; 242:117642. [PMID: 37996006 DOI: 10.1016/j.envres.2023.117642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 11/09/2023] [Indexed: 11/25/2023]
Abstract
Sound disturbance and sleep problems are regarded as the most common adverse effects of environmental noise but evidence of the role of air pollution and greenspace is scant. This is especially true for children who find themselves in a sensitive developmental period and experience their environment differently than adults. This study examined the joint effects of traffic exposures and residential greenspace on child sound disturbance and sleep problems via perceptions of neighborhood quality. We used cross-sectional data for 1251 schoolchildren (8-12 years) in the Tyrol region of Austria/Italy. Questionnaires provided information on sociodemographic and housing factors, perceived neighborhood quality, sound disturbance in different situations, and sleep problems. Modelled acoustic indicators included day-evening-night sound levels and the highest percentile level, and night-time sound level and a bespoke sleep disturbance index. Nitrogen dioxide served as a proxy for traffic-related air pollution. The normalized difference vegetation index was calculated as a measure of residential greenspace, and presence of a domestic garden was self-reported. Results showed that higher level of traffic-related exposures was positively associated with sound disturbance and sleep problems, while living in a greener area, especially in a house with a garden, was associated with lower sound disturbance and less sleep problems even in the presence of traffic. Traffic exposures contributed to more unfavorable, and greenspace to more positive perceptions in terms of traffic-related stressors, opportunities for outdoor recreation, and general satisfaction with the neighborhood. This indirect path seemed more important for greenspace than for traffic exposures. In conclusion, it seems advantageous to combine traffic-related mitigation with improving access to greenspace in interventions for supporting the acoustic comfort of children during day and nighttime. Even highly nature-dominated environments could still benefit from proximal green infrastructure, especially from domestic gardens.
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Affiliation(s)
- Angel M Dzhambov
- Environmental Health Division, Research Institute at Medical University of Plovdiv, Bulgaria; Institute of Highway Engineering and Transport Planning, Graz University of Technology, Austria; Research Group "Health and Quality of Life in a Green and Sustainable Environment", Strategic Research and Innovation Program for the Development of MU - Plovdiv, Medical University of Plovdiv, Bulgaria; Department of Hygiene, Faculty of Public Health, Medical University of Plovdiv, Bulgaria.
| | - Peter Lercher
- Institute of Highway Engineering and Transport Planning, Graz University of Technology, Austria
| | - Dick Botteldooren
- Department of Information Technology, Research Group WAVES, Ghent University, Belgium
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35
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Peng ZE, Easwar V. Development of amplitude modulation, voice onset time, and consonant identification in noise and reverberation. J Acoust Soc Am 2024; 155:1071-1085. [PMID: 38341737 DOI: 10.1121/10.0024461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 01/02/2024] [Indexed: 02/13/2024]
Abstract
Children's speech understanding is vulnerable to indoor noise and reverberation: e.g., from classrooms. It is unknown how they develop the ability to use temporal acoustic cues, specifically amplitude modulation (AM) and voice onset time (VOT), which are important for perceiving distorted speech. Through three experiments, we investigated the typical development of AM depth detection in vowels (experiment I), categorical perception of VOT (experiment II), and consonant identification (experiment III) in quiet and in speech-shaped noise (SSN) and mild reverberation in 6- to 14-year-old children. Our findings suggested that AM depth detection using a naturally produced vowel at the rate of the fundamental frequency was particularly difficult for children and with acoustic distortions. While the VOT cue salience was monotonically attenuated with increasing signal-to-noise ratio of SSN, its utility for consonant discrimination was completely removed even under mild reverberation. The reverberant energy decay in distorting critical temporal cues provided further evidence that may explain the error patterns observed in consonant identification. By 11-14 years of age, children approached adult-like performance in consonant discrimination and identification under adverse acoustics, emphasizing the need for good acoustics for younger children as they develop auditory skills to process distorted speech in everyday listening environments.
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Affiliation(s)
- Z Ellen Peng
- Waisman Center, University of Wisconsin-Madison, Madison, Wisconsin 53705, USA
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Hyvärinen P, Fereczkowski M, MacDonald EN. Test-retest evaluation of a notched-noise test using consumer-grade mobile audio equipment. Int J Audiol 2024; 63:127-135. [PMID: 36633444 DOI: 10.1080/14992027.2022.2161955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 01/13/2023]
Abstract
OBJECTIVE The aim of this study was to investigate whether consumer-grade mobile audio equipment can be reliably used as a platform for the notched-noise test, including when the test is conducted outside the laboratory. DESIGN Two studies were conducted: Study 1 was a notched-noise masking experiment with three different setups: in a psychoacoustic test booth with a standard laboratory PC; in a psychoacoustic test booth with a mobile device; and in a quiet office room with a mobile device. Study 2 employed the same task as Study 1, but compared circumaural headphones to insert earphones. STUDY SAMPLE Nine and ten young, normal-hearing participants completed studies 1 and 2, respectively. RESULTS The test-retest accuracy of the notched-noise test on the mobile implementation did not differ from that for the laboratory setup. A possible effect of the earphone design was identified in Study 1, which was corroborated by Study 2, where test-retest variability was smallest when comparing results from experiments conducted using identical acoustic transducers. CONCLUSIONS Results and test-retest repeatability comparable to standard laboratory settings for the notched-noise test can be obtained with mobile equipment outside the laboratory.
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Affiliation(s)
- Petteri Hyvärinen
- Acoustics Lab, Department of Signal Processing and Acoustics, Aalto University, Espoo, Finland
- Hearing Systems Section, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - Michal Fereczkowski
- Hearing Systems Section, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
- Institute of Clinical Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark
- Research Unit for ORL - Head & Neck Surgery and Audiology, Odense University Hospital & University of Southern Denmark, Odense, Denmark
| | - Ewen N MacDonald
- Hearing Systems Section, Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
- Department of Systems Design Engineering, University of Waterloo, Waterloo, Canada
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Slade K, Beat A, Taylor J, Plack CJ, Nuttall HE. The effect of motor resource suppression on speech perception in noise in younger and older listeners: An online study. Psychon Bull Rev 2024; 31:389-400. [PMID: 37653280 PMCID: PMC10866784 DOI: 10.3758/s13423-023-02361-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/31/2023] [Indexed: 09/02/2023]
Abstract
Speech motor resources may be recruited to assist challenging speech perception in younger normally hearing listeners, but the extent to which this occurs for older adult listeners is unclear. We investigated if speech motor resources are also recruited in older adults during speech perception. Specifically, we investigated if suppression of speech motor resources via sub-vocal rehearsal affects speech perception compared to non-speech motor suppression (jaw movement) and passive listening. Participants identified words in speech-shaped noise at signal-to-noise ratios (SNRs) from -16 to +16 dB in three listening conditions during which participants: (1) opened and closed their jaw (non-speech movement); (2) sub-vocally mimed 'the' (articulatory suppression); (3) produced no concurrent movement (passive listening). Data from 46 younger adults (M age = 20.17 years, SD = 1.61, 36 female) and 41 older adults (M age = 69 years, SD = 5.82, 21 female) were analysed. Linear mixed effects modelling investigated the impact of age, listening condition, and self-reported hearing ability on speech perception (d' prime). Results indicated that speech perception ability was significantly worse in older adults relative to younger adults across all listening conditions. A significant interaction between age group and listening condition indicated that younger adults showed poorer performance during articulatory suppression compared to passive listening, but older adults performed equivalently across conditions. This finding suggests that speech motor resources are less available to support speech perception in older adults, providing important insights for auditory-motor integration for speech understanding and communication in ageing.
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Affiliation(s)
- Kate Slade
- Neuroscience of Speech and Action Laboratory, Department of Psychology, Lancaster University, Lancaster, UK.
- Lancaster Medical School, Lancaster University, Lancaster, UK.
| | - Alanna Beat
- Neuroscience of Speech and Action Laboratory, Department of Psychology, Lancaster University, Lancaster, UK
| | - Jennifer Taylor
- Neuroscience of Speech and Action Laboratory, Department of Psychology, Lancaster University, Lancaster, UK
| | - Christopher J Plack
- Neuroscience of Speech and Action Laboratory, Department of Psychology, Lancaster University, Lancaster, UK
- Manchester Centre for Audiology and Deafness, School of Health Sciences, University of Manchester, Manchester, UK
| | - Helen E Nuttall
- Neuroscience of Speech and Action Laboratory, Department of Psychology, Lancaster University, Lancaster, UK.
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Kim S, Athi M, Shi G, Kim M, Kristjansson T. Zero-shot test time adaptation via knowledge distillation for personalized speech denoising and dereverberation. J Acoust Soc Am 2024; 155:1353-1367. [PMID: 38364043 DOI: 10.1121/10.0024621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 01/11/2024] [Indexed: 02/18/2024]
Abstract
A personalization framework to adapt compact models to test time environments and improve their speech enhancement (SE) performance in noisy and reverberant conditions is proposed. The use-cases are when the end-user device encounters only one or a few speakers and noise types that tend to reoccur in the specific acoustic environment. Hence, a small personalized model that is sufficient to handle this focused subset of the original universal SE problem is postulated. The study addresses a major data shortage issue: although the goal is to learn from a specific user's speech signals and the test time environment, the target clean speech is unavailable for model training due to privacy-related concerns and technical difficulty of recording noise and reverberation-free voice signals. The proposed zero-shot personalization method uses no clean speech target. Instead, it employs the knowledge distillation framework, where the more advanced denoising results from an overly large teacher work as pseudo targets to train a small student model. Evaluation on various test time conditions suggests that the proposed personalization approach can significantly enhance the compact student model's test time performance. Personalized models outperform larger non-personalized baseline models, demonstrating that personalization achieves model compression with no loss in dereverberation and denoising performance.
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Affiliation(s)
- Sunwoo Kim
- Amazon Lab126, Sunnyvale, California 94089, USA
| | | | - Guangji Shi
- Amazon Lab126, Sunnyvale, California 94089, USA
| | - Minje Kim
- Amazon Lab126, Sunnyvale, California 94089, USA
- Department of Computer Science, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
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Ferguson LA, Taff BD, Blanford JI, Mennitt DJ, Mowen AJ, Levenhagen M, White C, Monz CA, Francis CD, Barber JR, Newman P. Understanding park visitors' soundscape perception using subjective and objective measurement. PeerJ 2024; 12:e16592. [PMID: 38313034 PMCID: PMC10838067 DOI: 10.7717/peerj.16592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 11/14/2023] [Indexed: 02/06/2024] Open
Abstract
Environmental noise knows no boundaries, affecting even protected areas. Noise pollution, originating from both external and internal sources, imposes costs on these areas. It is associated with adverse health effects, while natural sounds contribute to cognitive and emotional improvements as ecosystem services. When it comes to parks, individual visitors hold unique perceptions of soundscapes, which can be shaped by various factors such as their motivations for visiting, personal norms, attitudes towards specific sounds, and expectations. In this study, we utilized linear models and geospatial data to evaluate how visitors' personal norms and attitudes, the park's acoustic environment, visitor counts, and the acoustic environment of visitors' neighborhoods influenced their perception of soundscapes at Muir Woods National Monument. Our findings indicate that visitors' subjective experiences had a greater impact on their perception of the park's soundscape compared to purely acoustic factors like sound level of the park itself. Specifically, we found that motivations to hear natural sounds, interference caused by noise, sensitivity to noise, and the sound levels of visitors' home neighborhoods influenced visitors' perception of the park's soundscape. Understanding how personal factors shape visitors' soundscape perception can assist urban and non-urban park planners in effectively managing visitor experiences and expectations.
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Affiliation(s)
- Lauren A. Ferguson
- Recreation Management and Policy Department, University of New Hampshire, Durham, NH, United States of America
| | - B. Derrick Taff
- Department of Recreation, Park and Tourism Management, Pennsylvania State University, PA, United States of America
| | - Justine I. Blanford
- Geo-Information Science and Earth Observation, University of Twente, Enschede, Netherlands
| | - Daniel J. Mennitt
- Mechanical Engineering, Exponent, Inc., Denver, CO, United States of America
| | - Andrew J. Mowen
- Department of Recreation, Park and Tourism Management, Pennsylvania State University, PA, United States of America
| | - Mitchell Levenhagen
- Department of Biological Sciences, Boise State University, Boise, ID, United States of America
- Ramboll Americas Engineering Solutions, Inc., Milwaukee, WI, United States of America
| | - Crow White
- Biological Sciences Department, California Polytechnic State University, San Luis Obispo, CA, United States of America
| | - Christopher A. Monz
- Department of Environment and Society, Utah State University, Logan, UT, United States of America
| | - Clinton D. Francis
- Biological Sciences Department, California Polytechnic State University, San Luis Obispo, CA, United States of America
| | - Jesse R. Barber
- Department of Biological Sciences, Boise State University, Boise, ID, United States of America
| | - Peter Newman
- Department of Recreation, Park and Tourism Management, Pennsylvania State University, PA, United States of America
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Poulsen AH, Sørensen M, Hvidtfeldt UA, Ketzel M, Christensen JH, Brandt J, Frohn LM, Massling A, Khan J, Münzel T, Raaschou-Nielsen O. Concomitant exposure to air pollution, green space and noise, and risk of myocardial infarction: a cohort study from Denmark. Eur J Prev Cardiol 2024; 31:131-141. [PMID: 37738461 DOI: 10.1093/eurjpc/zwad306] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 08/28/2023] [Accepted: 09/15/2023] [Indexed: 09/24/2023]
Abstract
AIMS The three correlated environmental exposures (air pollution, road traffic noise, and green space) have all been associated with the risk of myocardial infarction (MI). The present study aimed to analyse their independent and cumulative association with MI. METHODS AND RESULTS In a cohort of all Danes aged 50 or older in the period 2005-17, 5-year time-weighted average exposure to fine particles (PM2.5), ultrafine particles, elemental carbon, nitrogen dioxide (NO2), and road traffic noise at the most and least exposed façades of residence was estimated. Green space around residences was estimated from land use maps. Cox proportional hazard models were used to estimate hazard ratios (HRs) and 95% confidence interval (CI), and cumulative risk indices (CRIs) were calculated. All expressed per interquartile range. Models were adjusted for both individual and neighbourhood-level socio-demographic covariates. The cohort included 1 964 702 persons. During follow-up, 71 285 developed MI. In single-exposure models, all exposures were associated with an increased risk of MI. In multi-pollutant analyses, an independent association with risk of MI was observed for PM2.5 (HR: 1.026; 95% CI: 1.002-1.050), noise at most exposed façade (HR: 1.024; 95% CI: 1.012-1.035), and lack of green space within 150 m of residence (HR: 1.018; 95% CI: 1.010-1.027). All three factors contributed significantly to the CRI (1.089; 95% CI: 1.076-1.101). CONCLUSION In a nationwide cohort study, air pollution, noise, and lack of green space were all independently associated with an increased risk of MI. The air pollutant PM2.5 was closest associated with MI risk.
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Affiliation(s)
- Aslak Harbo Poulsen
- Work, Environment and Cancer, Danish Cancer Society Research Center, Strandboulevarden 49, Copenhagen 2100, Denmark
| | - Mette Sørensen
- Work, Environment and Cancer, Danish Cancer Society Research Center, Strandboulevarden 49, Copenhagen 2100, Denmark
- Department of Natural Science and Environment, Roskilde University, Roskilde, Denmark
| | - Ulla A Hvidtfeldt
- Work, Environment and Cancer, Danish Cancer Society Research Center, Strandboulevarden 49, Copenhagen 2100, Denmark
| | - Matthias Ketzel
- Department of Environmental Science, Aarhus University, Roskilde, Denmark
- Department of Civil and Environmental Engineering, Global Centre for Clean Air Research (GCARE), Surrey ,UK
| | - Jesper H Christensen
- Department of Environmental Science, Aarhus University, Roskilde, Denmark
- iClimate-Interdisciplinary Centre for Climate Change, Aarhus University, Roskilde, Denmark
| | - Jørgen Brandt
- Department of Environmental Science, Aarhus University, Roskilde, Denmark
- iClimate-Interdisciplinary Centre for Climate Change, Aarhus University, Roskilde, Denmark
| | - Lise M Frohn
- Department of Environmental Science, Aarhus University, Roskilde, Denmark
- iClimate-Interdisciplinary Centre for Climate Change, Aarhus University, Roskilde, Denmark
| | - Andreas Massling
- Department of Environmental Science, Aarhus University, Roskilde, Denmark
| | - Jibran Khan
- Department of Environmental Science, Aarhus University, Roskilde, Denmark
- Danish Big Data Centre for Environment and Health (BERTHA), Aarhus University, Roskilde, Denmark
| | - Thomas Münzel
- Center for Cardiology, Cardiology I, University Medical Center Mainz of the Johannes Gutenberg University, Mainz, Germany
| | - Ole Raaschou-Nielsen
- Work, Environment and Cancer, Danish Cancer Society Research Center, Strandboulevarden 49, Copenhagen 2100, Denmark
- Department of Environmental Science, Aarhus University, Roskilde, Denmark
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Muhdi M, Hanafiah DS, Sahar A, Telaumbanua AA. Effects of noise intensity on concentration levels of chainsaw operators and harvesting workers in industrial forest plantation, North Sumatera, Indonesia. F1000Res 2024; 11:627. [PMID: 37588773 PMCID: PMC10425697 DOI: 10.12688/f1000research.114592.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/03/2024] [Indexed: 08/18/2023] Open
Abstract
Background Noise has the potential to affect the comfort and health of workers. The objective of this research was to determines the effects of noise on the concentration levels of both chainsaw operators and harvesting workers in industrial forest plantation, North Sumatra, Indonesia. Methods This experimental study included 20 respondents which consisted of 10 chainsaw operators/helpers and 10 harvesting workers. All respondents were exposed to the sound of a chainsaw in three different conditions (idle, half gas and racing conditions) with and without personal protective equipment (PPEs: earmuffs, ear plugs and without PPE). The sound intensity produced by the chainsaw and the noise received by the respondents were measured using a sound level meter. Respondents' perception toward noise was recorded using a Likert scale. Respondents' concentration level was assessed by giving 25 math-questions to be answered within 10 minutes. Wilcoxon sign rank test was used to analysed paired data. Results The average sound intensity received by respondents' left and right ears were lower than the average sound intensity produced by the chainsaw. The use of earmuffs leads to better perception towards noise when compared with the use of earplugs and the absence of any PPE. Based on Wilcoxon test, the noise did not have significant impact on the concentration level of chainsaw operators, whilst the contrary result is true for harvesting workers. Conclusions The research indicated that although the noise produced by the chainsaw was considered noisy for both chainsaw operators and harvesting workers, it did not have a significant effect on the concentration level of chainsaw operators and only affected the harvesting workers. Therefore, given that the harvesting workers were still affected by the noise, noise control measures are still needed to ensure occupational safety and health for the workers.
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Affiliation(s)
- Muhdi Muhdi
- Faculty of Forestry, Universitas Sumatera Utara, Medan, 20155, Indonesia
| | | | - Asmarlaili Sahar
- Faculty of Agriculture, Universitas Sumatera Utara, Medan, 20155, Indonesia
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Yang L, Gutierrez DE, Guthrie OW. Systemic health effects of noise exposure. J Toxicol Environ Health B Crit Rev 2024; 27:21-54. [PMID: 37957800 DOI: 10.1080/10937404.2023.2280837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Noise, any unwanted sound, is pervasive and impacts large populations worldwide. Investigators suggested that noise exposure not only induces auditory damage but also produces various organ system dysfunctions. Although previous reviews primarily focused on noise-induced cardiovascular and cerebral dysfunctions, this narrow focus has unintentionally led the research community to disregard the importance of other vital organs. Indeed, limited studies revealed that noise exposure impacts other organs including the liver, kidneys, pancreas, lung, and gastrointestinal tract. Therefore, the aim of this review was to examine the effects of noise on both the extensively studied organs, the brain and heart, but also determine noise impact on other vital organs. The goal was to illustrate a comprehensive understanding of the systemic effects of noise. These systemic effects may guide future clinical research and epidemiological endpoints, emphasizing the importance of considering noise exposure history in diagnosing various systemic diseases.
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Affiliation(s)
- Li Yang
- Cell & Molecular Pathology Laboratory, Communication Sciences and Disorders, Northern Arizona University, Flagstaff, AZ, USA
- Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ, USA
| | - Daniel E Gutierrez
- Arizona College of Osteopathic Medicine, Midwestern University, Glendale, AZ, USA
| | - O'neil W Guthrie
- Cell & Molecular Pathology Laboratory, Communication Sciences and Disorders, Northern Arizona University, Flagstaff, AZ, USA
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Hu J, Liu B, Cui H, Liu Y, Wan N, Li L, Zheng L, Wang X, Yang Z, Ma Y, Liu C, Qiao C, Wen D. Dose-response associations of maternal prenatal noise exposure duration with antepartum depression status. BMC Pregnancy Childbirth 2024; 24:7. [PMID: 38166840 PMCID: PMC10759523 DOI: 10.1186/s12884-023-06200-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Antepartum depression has been reported to be associated with the intensity of maternal prenatal noise exposure; however, the association between noise exposure duration and the development of antepartum depression has not been established. This study aimed to determine the total and trimester-specific association of prenatal noise exposure duration with the development of antepartum depression. METHODS From May 2018 to June 2021, we recruited 2,166 pregnant women from Shengjing Hospital, northeast China. We used a standardized questionnaire to assess women's prenatal noise exposure and used the Edinburgh Postnatal Depression Scale to assess pregnant women's antepartum depression during the 1st -, 2nd -, and 3rd - trimesters. We calculated a cumulative noise exposure score ranging from 0 to 3, with a higher score reflecting higher frequency and longer duration of noise exposure during pregnancy. RESULTS Women who were exposed to noise for ≥ 15 min per day had an increased risk of antepartum depression compared with women who were not exposed to noise during pregnancy [odds ratio (OR) = 1.83, 95%CI:1.18, 2.83]. Noise exposure in a specific trimester was associated with higher risk of depression in the same trimester and subsequent trimesters. We observed increases in antepartum depression risk with increasing cumulative noise exposure scores (P for trend < 0.05 for all). Pregnant women with the highest scores had the highest risk of antepartum depression during the first (OR = 1.30, 95%CI:1.02, 1.65), second (OR = 1.75, 95%CI:1.23, 2.50) trimesters. Women with a cumulative noise exposure score of 2 had the highest risk of antepartum depression during the third trimester (OR = 1.79, 95%CI:1.14, 2.80), as well as during the whole pregnancy (OR = 1.94, 95%CI:1.14, 3.30). CONCLUSIONS Maternal prenatal noise exposure duration was positively associated with antepartum depression risk in a dose-response manner. It is necessary to develop strategies by which pregnant women can avoid excessive exposure to noise to prevent antepartum depression.
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Affiliation(s)
- Jiajin Hu
- Health Sciences Institute, China Medical University, Shenyang, 110122, China
- Research Center of China Medical University Birth Cohort, China Medical University, Shenyang, 110122, China
- Division of Chronic Disease Research across the Lifecourse, Department of Population Medicine, Harvard Medical School, Boston, MA, 02215, USA
| | - Borui Liu
- Health Sciences Institute, China Medical University, Shenyang, 110122, China
- Research Center of China Medical University Birth Cohort, China Medical University, Shenyang, 110122, China
| | - Hong Cui
- Research Center of China Medical University Birth Cohort, China Medical University, Shenyang, 110122, China
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, China Medical University, Shenyang, 110004, China
| | - Yilin Liu
- Research Center of China Medical University Birth Cohort, China Medical University, Shenyang, 110122, China
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, China Medical University, Shenyang, 110004, China
| | - Ningyu Wan
- Health Sciences Institute, China Medical University, Shenyang, 110122, China
- Research Center of China Medical University Birth Cohort, China Medical University, Shenyang, 110122, China
| | - Lin Li
- Research Center of China Medical University Birth Cohort, China Medical University, Shenyang, 110122, China
- Department of Developmental Pediatrics, Shengjing Hospital of China Medical University, China Medical University, Shenyang, 110004, China
| | - Lu Zheng
- Health Sciences Institute, China Medical University, Shenyang, 110122, China
- Research Center of China Medical University Birth Cohort, China Medical University, Shenyang, 110122, China
| | - Xiaochuan Wang
- Health Sciences Institute, China Medical University, Shenyang, 110122, China
- Research Center of China Medical University Birth Cohort, China Medical University, Shenyang, 110122, China
| | - Zhe Yang
- Health Sciences Institute, China Medical University, Shenyang, 110122, China
- Research Center of China Medical University Birth Cohort, China Medical University, Shenyang, 110122, China
| | - Yanan Ma
- Department of Epidemiology and Health Statistics, School of Public Health, China Medical University, Shenyang, 110122, China
| | - Caixia Liu
- Research Center of China Medical University Birth Cohort, China Medical University, Shenyang, 110122, China.
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, China Medical University, Shenyang, 110004, China.
| | - Chong Qiao
- Research Center of China Medical University Birth Cohort, China Medical University, Shenyang, 110122, China.
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, China Medical University, Shenyang, 110004, China.
| | - Deliang Wen
- Health Sciences Institute, China Medical University, Shenyang, 110122, China.
- Research Center of China Medical University Birth Cohort, China Medical University, Shenyang, 110122, China.
- Liaoning Key Laboratory of Obesity and Glucose/Lipid Associated Metabolic Diseases, Shenyang, 110122, China.
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Wen X, Yang H, Wang J. Application of Noise Reduction Earplugs in Patients undergoing Total Knee Arthroplasty: A Retrospective Study. Noise Health 2024; 26:19-24. [PMID: 38570306 DOI: 10.4103/nah.nah_88_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 01/29/2024] [Indexed: 04/05/2024] Open
Abstract
BACKGROUND Patients undergoing total knee arthroplasty (TKA) need to tolerate the effects of noise. MATERIALS AND METHODS This study retrospectively analyzed the clinical data of 167 TKA patients at The Affiliated Hospital of Southwest Medical University from April 2019 to April 2021. A total of 154 patients who met inclusion criteria were divided into the conventional noise reduction management group (CMG) and the noise reduction earplug group (EPG), following different management schemes. The CMG received routine noise reduction management after surgery, while the EPG used noise reduction earplugs based on the CMG. The clinical indexes of the two groups were compared. RESULTS In this study, 79 patients were included in the CMG, and 75 patients were included in the EPG. The results showed that the Pittsburgh Sleep Quality Index (PSQI) scores of both groups 2 weeks after surgery were significantly lower than those before management (ZEPG = 5.995, ZCMG = 4.109, all P < 0.001), and the EPG exhibited a significantly lower PSQI score than the CMG (Z = -2.442, P < 0.05). Two weeks after surgery, the EPG had significantly lower levels of systolic blood pressure (ZSBP = -4.303) and diastolic blood pressure (ZDBP = -3.115), as well as lower scores on the Hospital Anxiety and Depression Scale-Anxiety (HADS-A; ZHADS-A = -7.140) and Hospital Anxiety and Depression Scale-Depression (HADS-D; ZHADS-D = -4.545) compared to the CMG (all P < 0.05). In addition, no significant correlation existed between the duration of wearing earplugs and the HADS-A and HADS-D scores (r = -0.201, r = -0.002, P > 0.05). CONCLUSION Noise reduction earplugs can improve sleep quality and regulate negative emotions of patients undergoing TKA treatment through a complex mechanism involving noise, which is beneficial to the prognosis of the disease.
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Affiliation(s)
- Xi Wen
- The Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan, China
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Ferguson SH, Morgan SD, Hunter EJ. Within-talker and within-session stability of acoustic characteristics of conversational and clear speaking stylesa). J Acoust Soc Am 2024; 155:44-55. [PMID: 38174965 PMCID: PMC10990565 DOI: 10.1121/10.0024241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 12/01/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024]
Abstract
In speech production research, talkers often perform a speech task several times per recording session with different speaking styles or in different environments. For example, Lombard speech studies typically have talkers speak in several different noise conditions. However, it is unknown to what degree simple repetition of a speech task affects speech acoustic characteristics or whether repetition effects might offset or exaggerate effects of speaking style or environment. The present study assessed speech acoustic changes over four within-session repetitions of a speech production taskset performed with two speaking styles recorded in separate sessions: conversational and clear speech. In each style, ten talkers performed a set of three speech tasks four times. Speaking rate, median fundamental frequency, fundamental frequency range, and mid-frequency spectral energy for read sentences were measured and compared across test blocks both within-session and between the two styles. Results indicate that statistically significant changes can occur from one repetition of a speech task to the next, even with a brief practice set and especially in the conversational style. While these changes were smaller than speaking style differences, these findings support using a complete speech set for training while talkers acclimate to the task and to the laboratory environment.
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Affiliation(s)
- Sarah Hargus Ferguson
- Department of Communication Sciences and Disorders, University of Utah, Salt Lake City, Utah 84112, USA
| | - Shae D Morgan
- Department of Communication Sciences and Disorders, University of Utah, Salt Lake City, Utah 84112, USA
| | - Eric J Hunter
- Department of Communicative Sciences and Disorders, Michigan State University, East Lansing, Michigan 48824, USA
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Grunst AS, Grunst ML. Cognition as a neglected mediator of responses to anthropogenic noise. Glob Chang Biol 2024; 30:e17083. [PMID: 38273568 DOI: 10.1111/gcb.17083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 11/21/2023] [Indexed: 01/27/2024]
Abstract
Anthropogenic noise is an increasingly pervasive global disturbance factor, with diverse biological effects. Yet, most studies have focused on population mean responses to noise pollution, leaving sources of among-individual differences in responses poorly understood. Blackburn et al. (2023) provide the first evidence from free-living animals that cognition might mediate individual differences in responses to noise pollution. In this commentary, we highlight the contribution of this ground-breaking study to stimulate more research on this important topic. We argue that cognition might mediate among-individual differences in the ability to cope with both masking effects and stress associated with noise pollution.
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Affiliation(s)
- Andrea S Grunst
- Department of Biology, Indiana State University, Terre Haute, Indiana, USA
| | - Melissa L Grunst
- Department of Biology, Indiana State University, Terre Haute, Indiana, USA
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Fang CS, Tu YK, Chang SL, Kuo CC, Fang CJ, Chou FH. Effectiveness of sound and darkness interventions for critically ill patients' sleep quality: A systematic review and component network meta-analysis. Nurs Crit Care 2024; 29:134-143. [PMID: 37017370 DOI: 10.1111/nicc.12883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 12/22/2022] [Accepted: 12/22/2022] [Indexed: 01/15/2023]
Abstract
BACKGROUND Noise and lighting are prime factors of poor sleep quality in critically ill patients, which impair recovery and increase the risk of delirium or complications. AIM To identify and rank the effectiveness of sound and darkness interventions on the sleep quality of critically ill patients. STUDY DESIGN This systematic review and component network meta-analysis was based on the Preferred Reporting Items for Systematic Reviews incorporating the Network Meta-Analyses (PRISMA-NMA) Statement. The Embase, MEDLINE, Cochrane CENTRAL, CINAHL, Airiti Library, and Google Scholar databases were searched from inception to August 10, 2021, for randomized controlled trials (RCTs) on sound and darkness interventions targeting critically ill patients' sleep quality. We applied standard and component NMA to determine the effects of interventions. The certainty of evidence was evaluated using the Cochrane risk-of-bias tool (V.2.0) and the online Confidence in Network Meta-Analysis (CINeMA) application. RESULTS Twenty-four RCTs with 1507 participants who used combined interventions constituting seven competing interventions were included in the standard NMA. The combination of earplugs, eye masks, and music; eye masks alone; earplugs combined with eye masks; and music alone had beneficial intervention effects. The combination of earplugs, eye masks, and music was the best intervention, and these components had no interaction effect. An eye mask had the best relative effect, followed by music, quiet time, and earplugs. CONCLUSIONS This study provides clinical evidence of the effectiveness of using eye masks, music, and earplugs to improve sleep quality in critically ill patients. We also recommend future research using bedtime music, nocturnal eye masks, and quiet time, which had the best relative effects on sleep quality. RELEVANCE TO CLINICAL PRACTICE This study provides recommendations for interventions that nurses can use to improve critically ill patients' sleep quality.
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Affiliation(s)
- Chiu-Shu Fang
- School of Nursing, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yu-Kang Tu
- College of Public Health, National Taiwan University, Taipei, Taiwan
- Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan
- Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Shih-Lun Chang
- Department of Otorhinolaryngology, Chi-Mei Medical Center, Tainan, Taiwan
- Department of Pet Care and Groomimg, Chung Hwa University of Medical Technology, Tainan, Taiwan
| | - Chia-Chi Kuo
- Department of Nursing, Chang Gung University of Science and Technology, Chiayi Campus, Chiayi, Taiwan
| | - Ching-Ju Fang
- Department of Secretariat, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Medical Library, National Cheng Kung University, Tainan, Taiwan
| | - Fan-Hao Chou
- School of Nursing, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
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Lelic D, Nielsen LLA, Pedersen AK, Neher T. Focusing on Positive Listening Experiences Improves Speech Intelligibility in Experienced Hearing Aid Users. Trends Hear 2024; 28:23312165241246616. [PMID: 38656770 DOI: 10.1177/23312165241246616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024] Open
Abstract
Negativity bias is a cognitive bias that results in negative events being perceptually more salient than positive ones. For hearing care, this means that hearing aid benefits can potentially be overshadowed by adverse experiences. Research has shown that sustaining focus on positive experiences has the potential to mitigate negativity bias. The purpose of the current study was to investigate whether a positive focus (PF) intervention can improve speech-in-noise abilities for experienced hearing aid users. Thirty participants were randomly allocated to a control or PF group (N = 2 × 15). Prior to hearing aid fitting, all participants filled out the short form of the Speech, Spatial and Qualities of Hearing scale (SSQ12) based on their own hearing aids. At the first visit, they were fitted with study hearing aids, and speech-in-noise testing was performed. Both groups then wore the study hearing aids for two weeks and sent daily text messages reporting hours of hearing aid use to an experimenter. In addition, the PF group was instructed to focus on positive listening experiences and to also report them in the daily text messages. After the 2-week trial, all participants filled out the SSQ12 questionnaire based on the study hearing aids and completed the speech-in-noise testing again. Speech-in-noise performance and SSQ12 Qualities score were improved for the PF group but not for the control group. This finding indicates that the PF intervention can improve subjective and objective hearing aid benefits.
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Affiliation(s)
| | | | | | - Tobias Neher
- Department of Clinical Research, University of Southern Denmark, Odense, Denmark
- Research Unit for ORL - Head & Neck Surgery and Audiology, Odense University Hospital & University of Southern Denmark, Odense, Denmark
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Nelson-Olivieri JR, Layden TJ, Antunez E, Khalighifar A, Lasky M, Laverty TM, Sanchez KA, Shannon G, Starr S, Verahrami AK, Bombaci SP. Inequalities in noise will affect urban wildlife. Nat Ecol Evol 2024; 8:163-174. [PMID: 37985897 DOI: 10.1038/s41559-023-02257-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 10/23/2023] [Indexed: 11/22/2023]
Abstract
Understanding how systemic biases influence local ecological communities is essential for developing just and equitable environmental practices that prioritize both human and wildlife well-being. With over 270 million residents inhabiting urban areas in the United States, the socioecological consequences of racially targeted zoning, such as redlining, need to be considered in urban planning. There is a growing body of literature documenting the relationships between redlining and the inequitable distribution of environmental harms and goods, green space cover and pollutant exposure. However, it remains unknown whether historical redlining affects the distribution of urban noise or whether inequitable noise drives an ecological change in urban environments. Here we conducted a spatial analysis of how urban noise corresponds to the distribution of redlining categories and a systematic literature review to summarize the effects of noise on wildlife in urban landscapes. We found strong evidence to indicate that noise is inequitably distributed in redlined urban communities across the United States, and that inequitable noise may drive complex biological responses across diverse urban wildlife, reinforcing the interrelatedness of socioecological outcomes. These findings lay a foundation for future research that advances relationships between acoustic and urban ecology through centring equity and challenging systems of oppression in wildlife studies.
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Affiliation(s)
- Jasmine R Nelson-Olivieri
- Department of Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, CO, USA
| | - Tamara J Layden
- Department of Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, CO, USA
| | - Edder Antunez
- Department of Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, CO, USA
| | - Ali Khalighifar
- Department of Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, CO, USA
| | - Monica Lasky
- Department of Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, CO, USA
| | - Theresa M Laverty
- Department of Fish, Wildlife and Conservation Ecology, New Mexico State University, Las Cruces, NM, USA
| | - Karina A Sanchez
- Department of Natural Resources and the Environment, University of New Hampshire, Durham, NH, USA
| | - Graeme Shannon
- School of Environmental and Natural Sciences, Bangor University, Bangor, UK
| | - Steven Starr
- Department of Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, CO, USA
| | - Anahita K Verahrami
- Department of Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, CO, USA
| | - Sara P Bombaci
- Department of Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, CO, USA.
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Gröschel M, Manchev T, Fröhlich F, Jansen S, Ernst A, Basta D. Neurodegeneration after repeated noise trauma in the mouse lower auditory pathway. Neurosci Lett 2024; 818:137571. [PMID: 38013120 DOI: 10.1016/j.neulet.2023.137571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/20/2023] [Accepted: 11/24/2023] [Indexed: 11/29/2023]
Abstract
High intensity noise exposure leads to a permanent shift in auditory thresholds (PTS), affecting both peripheral (cochlear) tissue and the central auditory system. Studies have shown that a noise-induced hearing loss results in significant cell loss in several auditory structures. Degeneration can be demonstrated within hours after noise exposure, particularly in the lower auditory pathway, and continues to progress over days and weeks following the trauma. However, there is limited knowledge about the effects of recurring acoustic trauma. Repeated noise exposure has been demonstrated to increase neuroplasticity and neural activity. Thus, the present study aimed to investigate the influence of a second noise exposure on the cytoarchitecture of key structures of the auditory pathway, including spiral ganglion neurons (SGN), the ventral and dorsal cochlear nucleus (VCN and DCN, respectively), and the inferior colliculus (IC). In the experiments, young adult normal hearing mice were exposed to noise once or twice (with the second trauma applied one week after the initial exposure) for 3 h, using broadband white noise (5 - 20 kHz) at 115 dB SPL. The cell densities in the investigated auditory structures significantly decreased in response to the initial noise exposure compared to unexposed control animals. These findings are consistent with earlier research, which demonstrated degeneration in the auditory pathway within the first week after acoustic trauma. Additionally, cell densities were significantly decreased after the second trauma, but this effect was only observed in the VCN, with no similar effects seen in the SGN, DCN, or IC. These results illustrate how repeated noise exposure influences the cytoarchitecture of the auditory system. It appears that an initial noise exposure primarily damages the lower auditory pathway, but surviving cellular structures may develop resistance to additional noise-induced injury.
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Affiliation(s)
- Moritz Gröschel
- Department of Otorhinolaryngology, Unfallkrankenhaus Berlin, Berlin, Germany.
| | - Tanyo Manchev
- Department of Otorhinolaryngology, Unfallkrankenhaus Berlin, Berlin, Germany
| | - Felix Fröhlich
- Department of Otorhinolaryngology, Unfallkrankenhaus Berlin, Berlin, Germany
| | - Sebastian Jansen
- Department of Otorhinolaryngology, Unfallkrankenhaus Berlin, Berlin, Germany
| | - Arne Ernst
- Department of Otorhinolaryngology, Unfallkrankenhaus Berlin, Berlin, Germany
| | - Dietmar Basta
- Department of Otorhinolaryngology, Unfallkrankenhaus Berlin, Berlin, Germany
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