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Kim EH, Shin SH, Byun SW, Lee HY. Exploring the origins of decreased sound tolerance in tinnitus patients. Front Neurol 2023; 14:1273705. [PMID: 38020634 PMCID: PMC10657806 DOI: 10.3389/fneur.2023.1273705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
This study aimed to confirm the characteristics of auditory function alterations in tinnitus patients with concomitant decreased sound tolerance (ST) and provide insights for developing tailored therapeutic approaches. A retrospective analysis was conducted on patient records from a tertiary university hospital's tinnitus clinic between March 2020 and June 2023. Demographic attributes and audiological profiles were reviewed. Patients were categorized into Group 1 if loudness discomfort level test outcomes were 77 dB or below, measured using an average of frequencies from 250 Hz to 8 kHz. The remaining patients were allocated to Group 2. Among the 434 tinnitus patients, 115 (26.5%) demonstrated decreased ST and were classified as Group 1. This group exhibited higher DPOAE amplitudes (p < 0.001), shortened latency, and decreased threshold of ABR wave V bilaterally (p < 0.05). No significant disparities were observed in gender, age, tinnitus handicap inventory, visual analog scale, and pure-tone audiometry results except subjective hyperacusis. Binary logistic regression analysis utilizing the forward conditional method revealed that the difference between groups was independently linked to DPOAE response at 7,277 Hz on the left side [B = 0.093, p < 0.001, EXP(B) = 1.07, 95% CI = 1.044-1.153]. Increased DPOAE amplitude and shorter and decreased ABR wave V in tinnitus patients with decreased ST might suggest a possible association with lesions in or around the superior olivary complex or higher central auditory pathway, potentially linked to the inhibition of medial olivocochlear efferents.
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Affiliation(s)
| | | | | | - Ho Yun Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Ewha Womans University School of Medicine, Seoul, Republic of Korea
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Patel NM, Fameen R, Shafeek N, Prabhu P. Prevalence of Misophonia in College Going Students of India: A Preliminary Survey. Indian J Otolaryngol Head Neck Surg 2023; 75:374-378. [PMID: 37275093 PMCID: PMC10235297 DOI: 10.1007/s12070-022-03266-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 10/26/2022] [Indexed: 11/10/2022] Open
Abstract
Misophonia, meaning "hatred of sound", is a proposed neurological condition in which certain sounds trigger emotional or physiological responses others may deem unreasonable. The studies on prevalence of misophonia show that almost 20% of college going students exhibit experience misophonia like symptoms worldwide. These studies help us understand that decreased tolerance towards certain sounds has a high prevalence rate. In a country like India, the diversity in terms of exposure to various levels of noise and traditional habits spans across different age groups, locations, socio-economic statuses, and communities. This study aims to establish the prevalence rate and severity of misophonia in college going-students of India and also an attempt to determine gender dominance. The total participants were 328 undergraduate students all over India, with diverse cultural, linguistic, and economic backgrounds. An online survey was conducted through Google forms, wherein the participants filled the self-rating Amsterdam Misophonia Scale and Misophonia Questionnaire. The results of the study showed that the prevalence of misophonia was approximately 15.85%, with a moderate to severe degree of misophonia. The results indicate that misophonia is highly prevalent in India and there is no gender dominance in experiencing misophonia.
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Affiliation(s)
| | - Ridha Fameen
- All India Institute of Speech and Hearing, Mysore, Karnataka 570006 India
| | - Neha Shafeek
- All India Institute of Speech and Hearing, Mysore, Karnataka 570006 India
| | - Prashanth Prabhu
- All India Institute of Speech and Hearing, Mysore, Karnataka 570006 India
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Ripley S, Xia L, Zhang Z, Aiken SJ, Wang J. Animal-to-Human Translation Difficulties and Problems With Proposed Coding-in-Noise Deficits in Noise-Induced Synaptopathy and Hidden Hearing Loss. Front Neurosci 2022; 16:893542. [PMID: 35720689 PMCID: PMC9199355 DOI: 10.3389/fnins.2022.893542] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/22/2022] [Indexed: 12/26/2022] Open
Abstract
Noise induced synaptopathy (NIS) and hidden hearing loss (NIHHL) have been hot topic in hearing research since a massive synaptic loss was identified in CBA mice after a brief noise exposure that did not cause permanent threshold shift (PTS) in 2009. Based upon the amount of synaptic loss and the bias of it to synapses with a group of auditory nerve fibers (ANFs) with low spontaneous rate (LSR), coding-in-noise deficit (CIND) has been speculated as the major difficult of hearing in subjects with NIS and NIHHL. This speculation is based upon the idea that the coding of sound at high level against background noise relies mainly on the LSR ANFs. However, the translation from animal data to humans for NIS remains to be justified due to the difference in noise exposure between laboratory animals and human subjects in real life, the lack of morphological data and reliable functional methods to quantify or estimate the loss of the afferent synapses by noise. Moreover, there is no clear, robust data revealing the CIND even in animals with the synaptic loss but no PTS. In humans, both positive and negative reports are available. The difficulty in verifying CINDs has led a re-examination of the hypothesis that CIND is the major deficit associated with NIS and NIHHL, and the theoretical basis of this idea on the role of LSR ANFs. This review summarized the current status of research in NIS and NIHHL, with focus on the translational difficulty from animal data to human clinicals, the technical difficulties in quantifying NIS in humans, and the problems with the SR theory on signal coding. Temporal fluctuation profile model was discussed as a potential alternative for signal coding at high sound level against background noise, in association with the mechanisms of efferent control on the cochlea gain.
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Affiliation(s)
- Sara Ripley
- School of Communication Sciences and Disorders, Dalhousie University, Halifax, NS, Canada
| | - Li Xia
- Department of Otolaryngology-Head and Neck Surgery, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, China
| | - Zhen Zhang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
- Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai, China
| | - Steve J. Aiken
- School of Communication Sciences and Disorders, Dalhousie University, Halifax, NS, Canada
| | - Jian Wang
- School of Communication Sciences and Disorders, Dalhousie University, Halifax, NS, Canada
- Department of Otolaryngology-Head and Neck Surgery, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, China
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4
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Mansour Y, Kulesza RJ. The Untouchable Ventral Nucleus of the Trapezoid Body: Preservation of a Nucleus in an Animal Model of Autism Spectrum Disorder. Front Integr Neurosci 2021; 15:730439. [PMID: 34658803 PMCID: PMC8511769 DOI: 10.3389/fnint.2021.730439] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 09/08/2021] [Indexed: 12/23/2022] Open
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental condition characterized by repetitive behaviors, poor social skills, and difficulties with communication and hearing. The hearing deficits in ASD range from deafness to extreme sensitivity to routine environmental sounds. Previous research from our lab has shown drastic hypoplasia in the superior olivary complex (SOC) in both human cases of ASD and in an animal model of autism. However, in our study of the human SOC, we failed to find any changes in the total number of neurons in the ventral nucleus of the trapezoid body (VNTB) or any changes in cell body size or shape. Similarly, in animals prenatally exposed to the antiepileptic valproic acid (VPA), we failed to find any changes in the total number, size or shape of VNTB neurons. Based on these findings, we hypothesized that the neurotransmitter profiles, ascending and descending axonal projections of the VNTB are also preserved in these neurodevelopmental conditions. We investigated this hypothesis using a combination of immunohistochemistry and retrograde tract tracing. We found no difference between control and VPA-exposed animals in the number of VNTB neurons immunoreactive for choline acetyltransferase (ChAT). Additionally, we investigated the ascending projections from the VNTB to both the central nucleus of the inferior colliculus (CNIC) and medial geniculate (MG) and descending projections to the cochlea. Our results indicate no significant differences in the ascending and descending projections from the VNTB between control and VPA-exposed animals despite drastic changes in these projections from surrounding nuclei. These findings provide evidence that certain neuronal populations and circuits may be protected against the effects of neurodevelopmental disorders.
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Affiliation(s)
- Yusra Mansour
- Department of Otolaryngology, Henry Ford Macomb Hospital, Clinton Township, MI, United States.,Department of Anatomy, Lake Erie College of Osteopathic Medicine, Erie, PA, United States
| | - Randy J Kulesza
- Department of Anatomy, Lake Erie College of Osteopathic Medicine, Erie, PA, United States
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Danesh AA, Howery S, Aazh H, Kaf W, Eshraghi AA. Hyperacusis in Autism Spectrum Disorders. Audiol Res 2021; 11:547-556. [PMID: 34698068 PMCID: PMC8544234 DOI: 10.3390/audiolres11040049] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 09/30/2021] [Accepted: 10/06/2021] [Indexed: 11/30/2022] Open
Abstract
Hyperacusis is highly prevalent in the autism spectrum disorder (ASD) population. This auditory hypersensitivity can trigger pragmatically atypical reactions that may impact social and academic domains. Objective: The aim of this report is to describe the relationship between decreased sound tolerance disorders and the ASD population. Topics covered: The main topics discussed include (1) assessment and prevalence of hyperacusis in ASD; (2) etiology of hyperacusis in ASD; (3) treatment of hyperacusis in ASD. Conclusions: Knowledge of the assessment and treatment of decreased sound tolerance disorders within the ASD population is growing and changing.
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Affiliation(s)
- Ali A. Danesh
- Department of Communication Sciences and Disorders, Florida Atlantic University, Boca Raton, FL 33431, USA;
- Department of Integrated Medical Sciences, Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL 33431, USA
- Correspondence:
| | - Stephanie Howery
- Department of Communication Sciences and Disorders, Florida Atlantic University, Boca Raton, FL 33431, USA;
| | - Hashir Aazh
- Department of Audiology, Tinnitus and Hyperacusis Specialty Clinic, Royal Surrey Hospital, Guildford GU2 7XX, UK;
| | - Wafaa Kaf
- Communication Sciences and Disorders Department, Missouri State University, Springfield, MO 65897, USA;
| | - Adrien A. Eshraghi
- Department of Otolaryngology and Neurological Surgery, Miller School of Medicine, University of Miami, Miami, FL 33146, USA;
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Mansour Y, Burchell A, Kulesza RJ. Central Auditory and Vestibular Dysfunction Are Key Features of Autism Spectrum Disorder. Front Integr Neurosci 2021; 15:743561. [PMID: 34658804 PMCID: PMC8513787 DOI: 10.3389/fnint.2021.743561] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 09/07/2021] [Indexed: 12/27/2022] Open
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by repetitive behaviors, poor social skills, and difficulties with communication. Beyond these core signs and symptoms, the majority of subjects with ASD have some degree of auditory and vestibular dysfunction. Dysfunction in these sensory modalities is significant as normal cognitive development depends on an accurate representation of our environment. The hearing difficulties in ASD range from deafness to hypersensitivity and subjects with ASD have abnormal sound-evoked brainstem reflexes and brainstem auditory evoked potentials. Vestibular dysfunction in ASD includes postural instability, gait dysfunction, and impaired gaze. Untreated vestibular dysfunction in children can lead to delayed milestones such as sitting and walking and poor motor coordination later in life. Histopathological studies have revealed that subjects with ASD have significantly fewer neurons in the auditory hindbrain and surviving neurons are smaller and dysmorphic. These findings are consistent with auditory dysfunction. Further, the cerebellum was one of the first brain structures implicated in ASD and studies have revealed loss of Purkinje cells and the presence of ectopic neurons. Together, these studies suggest that normal auditory and vestibular function play major roles in the development of language and social abilities, and dysfunction in these systems may contribute to the core symptoms of ASD. Further, auditory and vestibular dysfunction in children may be overlooked or attributed to other neurodevelopmental disorders. Herein we review the literature on auditory and vestibular dysfunction in ASD. Based on these results we developed a brainstem model of central auditory and vestibular dysfunction in ASD and propose that simple, non-invasive but quantitative testing of hearing and vestibular function be added to newborn screening protocols.
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Affiliation(s)
- Yusra Mansour
- Department of Otolaryngology, Henry Ford Macomb Hospital, Detroit, MI, United States
- Department of Anatomy, Lake Erie College of Osteopathic Medicine, Erie, PA, United States
| | - Alyson Burchell
- Department of Anatomy, Lake Erie College of Osteopathic Medicine, Erie, PA, United States
| | - Randy J. Kulesza
- Department of Anatomy, Lake Erie College of Osteopathic Medicine, Erie, PA, United States
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Fujihira H, Itoi C, Furukawa S, Kato N, Kashino M. Auditory brainstem responses in adults with autism spectrum disorder. Clin Neurophysiol Pract 2021; 6:179-184. [PMID: 34235293 PMCID: PMC8249870 DOI: 10.1016/j.cnp.2021.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 04/01/2021] [Accepted: 04/26/2021] [Indexed: 12/02/2022] Open
Abstract
OBJECTIVE To investigate possible differences in the auditory peripheral and brainstem functions between adults with autism spectrum disorder (ASD) and neurotypical (NT) adults. METHODS Click-evoked auditory brainstem responses (ABRs) were obtained from 17 high-functioning ASD adults (aged 21-38 years) and 20 NT adults (aged 22-36 years). A relatively large number of stimulus presentations (6000) were adopted, and ABRs by horizontal and vertical electrode montages were evaluated, in order to allow precise evaluations of early ABR components. RESULTS Waves I, II, III, and V were identified in the vertical electrode montage, and wave I and the summating potential (SP) in electrocochleograms were identified in the horizontal electrode montage. There were no significant group differences in the wave I, II, III, and V latencies or the interpeak latencies (IPLs) in the vertical electrode montage. In the horizontal montage, the ASD adults exhibited significantly shortened SP latencies compared with the NT adults, whereas there was no significant group difference in the wave I latency. CONCLUSION The ASD adults may have the abnormalities of processing more in the peripheral auditory system than in the brainstem. SIGNIFICANCE The current study suggests that the peripheral abnormality is associated with ASD.
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Affiliation(s)
- H. Fujihira
- NTT Communication Science Laboratories, Morinosato Wakamiya, Atsugi, Kanagawa, Japan
- Japan Society for the Promotion of Science (JSPS), Kojimachi, Chiyoda-ku, Tokyo, Japan
| | - C. Itoi
- Department of Psychology, Faculty of Letters, Chuo University, Higashinakano, Hachioji, Tokyo, Japan
| | - S. Furukawa
- NTT Communication Science Laboratories, Morinosato Wakamiya, Atsugi, Kanagawa, Japan
| | - N. Kato
- Medical Institute of Developmental Disabilities Research, Showa University, Kitakarasuyama, Setagaya, Tokyo, Japan
| | - M. Kashino
- NTT Communication Science Laboratories, Morinosato Wakamiya, Atsugi, Kanagawa, Japan
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8
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Lauer AM, Jimenez SV, Delano PH. Olivocochlear efferent effects on perception and behavior. Hear Res 2021; 419:108207. [PMID: 33674070 DOI: 10.1016/j.heares.2021.108207] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/18/2021] [Accepted: 02/12/2021] [Indexed: 01/13/2023]
Abstract
The role of the mammalian auditory olivocochlear efferent system in hearing has long been the subject of debate. Its ability to protect against damaging noise exposure is clear, but whether or not this is the primary function of a system that evolved in the absence of industrial noise remains controversial. Here we review the behavioral consequences of olivocochlear activation and diminished olivocochlear function. Attempts to demonstrate a role for hearing in noise have yielded conflicting results in both animal and human studies. A role in selective attention to sounds in the presence of distractors, or attention to visual stimuli in the presence of competing auditory stimuli, has been established in animal models, but again behavioral studies in humans remain equivocal. Auditory processing deficits occur in models of congenital olivocochlear dysfunction, but these deficits likely reflect abnormal central auditory development rather than direct effects of olivocochlear feedback. Additional proposed roles in age-related hearing loss, tinnitus, hyperacusis, and binaural or spatial hearing, are intriguing, but require additional study. These behavioral studies almost exclusively focus on medial olivocochlear effects, and many relied on lesioning techniques that can have unspecific effects. The consequences of lateral olivocochlear and of corticofugal pathway activation for perception remain unknown. As new tools for targeted manipulation of olivocochlear neurons emerge, there is potential for a transformation of our understanding of the role of the olivocochlear system in behavior across species.
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Affiliation(s)
- Amanda M Lauer
- David M. Rubenstein Center for Hearing Research and Department of Otolaryngology-HNS, Johns Hopkins University School of Medicine, 515 Traylor Building, 720 Rutland Ave, Baltimore, MD 21205, United States; Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, United States.
| | - Sergio Vicencio Jimenez
- David M. Rubenstein Center for Hearing Research and Department of Otolaryngology-HNS, Johns Hopkins University School of Medicine, 515 Traylor Building, 720 Rutland Ave, Baltimore, MD 21205, United States; Biomedical Neuroscience Institute, BNI, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Paul H Delano
- Departments of Otolaryngology and Neuroscience, Faculty of Medicine, University of Chile, Santiago, Chile; Biomedical Neuroscience Institute, BNI, Faculty of Medicine, Universidad de Chile, Santiago, Chile; Advanced Center for Electrical and Electronic Engineer, AC3E, Universidad Técnica Federico Santa María, Valparaíso, Chile
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9
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Williams ZJ, He JL, Cascio CJ, Woynaroski TG. A review of decreased sound tolerance in autism: Definitions, phenomenology, and potential mechanisms. Neurosci Biobehav Rev 2021; 121:1-17. [PMID: 33285160 PMCID: PMC7855558 DOI: 10.1016/j.neubiorev.2020.11.030] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/11/2020] [Accepted: 11/12/2020] [Indexed: 12/23/2022]
Abstract
Atypical behavioral responses to environmental sounds are common in autistic children and adults, with 50-70 % of this population exhibiting decreased sound tolerance (DST) at some point in their lives. This symptom is a source of significant distress and impairment across the lifespan, contributing to anxiety, challenging behaviors, reduced community participation, and school/workplace difficulties. However, relatively little is known about its phenomenology or neurocognitive underpinnings. The present article synthesizes a large body of literature on the phenomenology and pathophysiology of DST-related conditions to generate a comprehensive theoretical account of DST in autism. Notably, we argue against conceptualizing DST as a unified construct, suggesting that it be separated into three phenomenologically distinct conditions: hyperacusis (the perception of everyday sounds as excessively loud or painful), misophonia (an acquired aversive reaction to specific sounds), and phonophobia (a specific phobia of sound), each responsible for a portion of observed DST behaviors. We further elaborate our framework by proposing preliminary neurocognitive models of hyperacusis, misophonia, and phonophobia that incorporate neurophysiologic findings from studies of autism.
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Affiliation(s)
- Zachary J Williams
- Medical Scientist Training Program, Vanderbilt University School of Medicine, 221 Eskind Biomedical Library and Learning Center, 2209 Garland Ave., Nashville, TN, 37240, United States; Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, 1215 21st Avenue South, Medical Center East, Room 8310, Nashville, TN, 37232, United States; Vanderbilt Brain Institute, Vanderbilt University, 7203 Medical Research Building III, 465 21st Avenue South, Nashville, TN, 37232, United States; Frist Center for Autism and Innovation, Vanderbilt University, 2414 Highland Avenue, Suite 115, Nashville, TN, 37212, United States.
| | - Jason L He
- Department of Forensic and Neurodevelopmental Sciences, Sackler Institute for Translational Neurodevelopment, Institute of Psychiatry, Psychology and Neuroscience, King's College London, Strand Building, Strand Campus, Strand, London, WC2R 2LS, London, United Kingdom.
| | - Carissa J Cascio
- Vanderbilt Brain Institute, Vanderbilt University, 7203 Medical Research Building III, 465 21st Avenue South, Nashville, TN, 37232, United States; Frist Center for Autism and Innovation, Vanderbilt University, 2414 Highland Avenue, Suite 115, Nashville, TN, 37212, United States; Department of Psychiatry and Behavioral Sciences, Vanderbilt University Medical Center, 2254 Village at Vanderbilt, 1500 21st Ave South, Nashville, TN, 37212, United States; Vanderbilt Kennedy Center, Vanderbilt University Medical Center, 110 Magnolia Cir, Nashville, TN, 37203, United States.
| | - Tiffany G Woynaroski
- Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, 1215 21st Avenue South, Medical Center East, Room 8310, Nashville, TN, 37232, United States; Vanderbilt Brain Institute, Vanderbilt University, 7203 Medical Research Building III, 465 21st Avenue South, Nashville, TN, 37232, United States; Frist Center for Autism and Innovation, Vanderbilt University, 2414 Highland Avenue, Suite 115, Nashville, TN, 37212, United States; Vanderbilt Kennedy Center, Vanderbilt University Medical Center, 110 Magnolia Cir, Nashville, TN, 37203, United States.
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10
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Neave-DiToro D, Fuse A, Bergen M. Knowledge and Awareness of Ear Protection Devices for Sound Sensitivity by Individuals With Autism Spectrum Disorders. Lang Speech Hear Serv Sch 2020; 52:409-425. [PMID: 32997580 DOI: 10.1044/2020_lshss-19-00119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Purpose Sensitivity to sounds and atypical reactions to sensory input by individuals with autism spectrum disorder (ASD) have been reported in the literature. In response to this sensitivity, some individuals use ear protection devices (EPDs) such as noise-canceling headphones, earplugs, or earmuffs to attenuate the perceived unpleasant sounds. Given the communication deficits often noted in this population and the essential role of hearing in speech and language development, the impact of wearing EPDs to attenuate sound needs to be explored. The purpose of this study was to obtain information from various stakeholders regarding their opinions about use of EPDs in individuals with ASD and perceived benefits and possible concerns of EPD use. Method A survey was constructed to assess the opinions of speech-language pathologists, audiologists, teachers, and graduate students about EPDs among individuals with ASD. A total of 255 professionals and graduate students completed the survey. Results The vast majority of respondents indicated a level of awareness of EPDs within this population. Regarding observed use of such devices, the majority of participants (66%) reported observing individuals with ASD using EPDs. The most commonly used devices observed were headphones (91%), followed by earmuffs (44%) and earplugs (33%). Respondents who had experience recommending and/or using EPDs with individuals with ASD were asked to report on major reasons why the devices were used and the perceived benefits and possible negative effects. Conclusions There appears to be uncertainty among various stakeholders of the benefits and possible negative effects of EPD use by individuals with ASD. Additionally, there is a dearth of research in this area, and the necessity for specific guidelines for recommending and monitoring EPD use is indicated.
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Affiliation(s)
| | - Akiko Fuse
- Department of Communication Arts, Sciences, and Disorders, Brooklyn College, NY
| | - Michael Bergen
- Department of Communication Arts, Sciences, and Disorders, Brooklyn College, NY
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11
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Three dimensional reconstructions of the superior olivary complex from children with autism spectrum disorder. Hear Res 2020; 393:107974. [DOI: 10.1016/j.heares.2020.107974] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/18/2020] [Accepted: 04/14/2020] [Indexed: 11/18/2022]
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12
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Congenital hearing impairment associated with peripheral cochlear nerve dysmyelination in glycosylation-deficient muscular dystrophy. PLoS Genet 2020; 16:e1008826. [PMID: 32453729 PMCID: PMC7274486 DOI: 10.1371/journal.pgen.1008826] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 06/05/2020] [Accepted: 05/04/2020] [Indexed: 02/06/2023] Open
Abstract
Hearing loss (HL) is one of the most common sensory impairments and etiologically and genetically heterogeneous disorders in humans. Muscular dystrophies (MDs) are neuromuscular disorders characterized by progressive degeneration of skeletal muscle accompanied by non-muscular symptoms. Aberrant glycosylation of α-dystroglycan causes at least eighteen subtypes of MD, now categorized as MD-dystroglycanopathy (MD-DG), with a wide spectrum of non-muscular symptoms. Despite a growing number of MD-DG subtypes and increasing evidence regarding their molecular pathogeneses, no comprehensive study has investigated sensorineural HL (SNHL) in MD-DG. Here, we found that two mouse models of MD-DG, Largemyd/myd and POMGnT1-KO mice, exhibited congenital, non-progressive, and mild-to-moderate SNHL in auditory brainstem response (ABR) accompanied by extended latency of wave I. Profoundly abnormal myelination was found at the peripheral segment of the cochlear nerve, which is rich in the glycosylated α-dystroglycan–laminin complex and demarcated by “the glial dome.” In addition, patients with Fukuyama congenital MD, a type of MD-DG, also had latent SNHL with extended latency of wave I in ABR. Collectively, these findings indicate that hearing impairment associated with impaired Schwann cell-mediated myelination at the peripheral segment of the cochlear nerve is a notable symptom of MD-DG. Hearing loss (HL) is one of the most common sensory impairments and heterogeneous disorders in humans. Up to 60% of HL cases are caused by genetic factors, and approximately 30% of genetic HL cases are syndromic. Although 400–700 genetic syndromes are associated with sensorineural HL (SNHL), caused due to problems in the nerve pathways from the cochlea to the brain, only about 45 genes are known to be associated with syndromic HL. Muscular dystrophies (MDs) are neuromuscular disorders characterized by progressive degeneration of skeletal muscle accompanied by non-muscular symptoms. MD-dystroglycanopathy (MD-DG), caused by aberrant glycosylation of α-dystroglycan, is an MD subtype with a wide spectrum of non-muscular symptoms. Despite a growing number of MD-DG subtypes (at least 18), no comprehensive study has investigated SNHL in MD-DG. Here, we found that hearing impairment was associated with abnormal myelination of the peripheral segment of the cochlear nerve caused by impaired dystrophin–dystroglycan complex in two mouse models (type 3 and 6) of MD-DG and in patients (type 4) with MD-DG. This is the first comprehensive study investigating SNHL in MD-DG. Our findings may provide new insights into understanding the pathogenic characteristics and mechanisms underlying inherited syndromic hearing impairment.
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Stefanelli ACGF, Zanchetta S, Furtado EF. Auditory hyper-responsiveness in autism spectrum disorder, terminologies and physiological mechanisms involved: systematic review. Codas 2020; 32:e20180287. [PMID: 31994595 DOI: 10.1590/2317-1782/20192018287] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 03/15/2019] [Indexed: 11/22/2022] Open
Abstract
PURPOSE this paper aims to identify the most used terminologies to designate the disproportional behavior to sounds in the autism spectrum disorder (ASD) and its relationship with the respective tools for its investigation, as well as its occurrence and outcomes. RESEARCH STRATEGIES the databases used were PubMed, PsycINFO, Web of Science, Scielo and Lilacs. The keywords used were "autism", "hyperacusis" and "auditory perception", with the following combinations: "autism AND hyperacusis" and "autism AND auditory perception". SELECTION CRITERIA individuals diagnosed with ASD of any age group; available abstract; papers in English, Spanish and Brazilian Portuguese; case series, prevalence and incidence studies, cohort and clinical trials. DATA ANALYSIS we analyzed studies with individuals diagnosed with ASD of any age group; reference in the title and/or summary of the occurrence of disproportional behavior to sounds, accepting the terms hyper-responsiveness, hypersensitivity and hyperacusis; summary available; papers in English, Spanish and Brazilian Portuguese; series of cases, prevalence and incidence studies, cohort and clinical trials. RESULTS Of the 692 studies resulting from the consultation, 13 studies could achieve the established requirements. CONCLUSION The term auditory hypersensitivity was the most commonly used to designate disproportional behavior to sounds, followed by hyperacusis. There was no relationship between the terms and the respective research tool, and the questionnaires were the most used to designate the referred behavior, whose reported frequency was from 42.1% to 69.0%. The auditory behavior tests when performed showed the involvement of the auditory, afferent and efferent neural pathways.
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Affiliation(s)
- Ana Cecília Grilli Fernandes Stefanelli
- Departamento de Neurociências e Ciências do Comportamento, Faculdade de Medicina de Ribeirão Preto - FMRP, Universidade de São Paulo - USP - Ribeirão Preto (SP), Brasil
| | - Sthella Zanchetta
- Departamento de Ciências da Saúde, Faculdade de Medicina de Ribeirão Preto - FMRP, Universidade de São Paulo - USP, Ribeirão Preto (SP) - Brasil
| | - Erikson Felipe Furtado
- Departamento de Neurociências e Ciências do Comportamento, Faculdade de Medicina de Ribeirão Preto - FMRP, Universidade de São Paulo - USP - Ribeirão Preto (SP), Brasil
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14
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McTee HM, Mood D, Fredrickson T, Thrasher A, Bonino AY. Using Visual Supports to Facilitate Audiological Testing for Children With Autism Spectrum Disorder. Am J Audiol 2019; 28:823-833. [PMID: 31689370 PMCID: PMC7210434 DOI: 10.1044/2019_aja-19-0047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 06/30/2019] [Accepted: 08/06/2019] [Indexed: 11/09/2022] Open
Abstract
Purpose One in 59 children is diagnosed with autism spectrum disorder (ASD). Due to overlapping symptoms between hearing loss and ASD, children who are suspected of having ASD require an audiological evaluation to determine their hearing status for the purpose of differential diagnosis. The purpose of this article is twofold: (a) to increase audiologists' knowledge of ASD by discussing the challenges associated with testing and interpreting clinical data for children with ASD or suspected ASD and (b) to provide visual supports that can be used to facilitate audiological assessment. Method Eight children (ages 4-12 years) were recruited as video model participants. Videos were filmed using scripts that used concise and concrete language while portraying common clinical procedures. Using the video models, corresponding visual schedules were also created. Conclusion Although obtaining reliable hearing data from children with ASD is challenging, incorporating visual supports may facilitate testing. Video models and visual schedules have been created and made freely available for download online under a Creative Commons License (Creative Commons-Attribution-NonCommercial-ShareAlike 4.0 International License). Incorporating visual supports during clinical testing has the potential to reduce the child's and family's stress, as well as to increase the probability of obtaining a reliable and comprehensive audiological evaluation. Future research is warranted to determine the effectiveness and feasibility of implementing these tools in audiology clinics. Supplemental Material https://doi.org/10.23641/asha.10086434.
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Affiliation(s)
- Haley M. McTee
- Department of Speech, Language, and Hearing Sciences, University of Colorado Boulder
| | - Deborah Mood
- Department of Pediatrics, University of Colorado Denver, Aurora
| | - Tammy Fredrickson
- Department of Speech, Language, and Hearing Sciences, University of Colorado Boulder
| | - Amy Thrasher
- Department of Speech, Language, and Hearing Sciences, University of Colorado Boulder
| | - Angela Yarnell Bonino
- Department of Speech, Language, and Hearing Sciences, University of Colorado Boulder
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15
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Smith A, Storti S, Lukose R, Kulesza RJ. Structural and Functional Aberrations of the Auditory Brainstem in Autism Spectrum Disorder. J Osteopath Med 2019; 119:41-50. [PMID: 30615041 DOI: 10.7556/jaoa.2019.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental condition associated with difficulties in the social, communicative, and behavioral domains. Most cases of ASD arise from an unknown etiologic process, but there are numerous risk factors, including comorbidities and maternal exposures. Although it is not part of the diagnostic criteria, hearing difficulties ranging from deafness to hyperacusis are present in the majority of persons with ASD. High-functioning children with ASD have been found to have significantly slower and asymmetric auditory brainstem reflexes. Additionally, histopathological studies of postmortem brainstems in decedents who had ASD have consistently revealed significantly fewer neurons in auditory nuclei compared with those in people who did not have ASD. The authors review the literature implicating auditory dysfunction in ASD along with results from human study participants and postmortem human brain tissue. Together, these results implicate significant structural and functional abnormalities in the auditory brainstem in ASD and support the utility of auditory testing to screen for ASD.
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16
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Lotfi Y, Moossavi A, Javanbakht M, Faghih Zadeh S. Speech-ABR in contralateral noise: A potential tool to evaluate rostral part of the auditory efferent system. Med Hypotheses 2019; 132:109355. [DOI: 10.1016/j.mehy.2019.109355] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 08/01/2019] [Accepted: 08/07/2019] [Indexed: 11/25/2022]
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17
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Mattsson TS, Lind O, Follestad T, Grøndahl K, Wilson W, Nordgård S. Contralateral suppression of otoacoustic emissions in a clinical sample of children with auditory processing disorder. Int J Audiol 2019; 58:301-310. [DOI: 10.1080/14992027.2019.1570358] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Tone Stokkereit Mattsson
- Department of Otorhinolaryngology, Head and Neck Surgery, Ålesund Hospital, Ålesund, Norway
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Trondheim, Norway
| | - Ola Lind
- Department of Otorhinolaryngology, Head and Neck Surgery, Haukeland University Hospital, Bergen, Norway
| | - Turid Follestad
- Department of Public Health and General Practice, Norwegian University of Science and Technology, Trondheim, Norway
| | - Kjell Grøndahl
- Department of Clinical Engineering, Haukeland University Hospital, Bergen, Norway
| | - Wayne Wilson
- School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Australia
| | - Ståle Nordgård
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Otorhinolaryngology, Head and Neck Surgery, St. Olavs University Hospital, Trondheim, Norway
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18
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Akbari M, Panahi R, Valadbeigi A, Hamadi Nahrani M. Speech-in-noise perception ability can be related to auditory efferent pathway function: a comparative study in reading impaired and normal reading children. Braz J Otorhinolaryngol 2019; 86:209-216. [PMID: 30772249 PMCID: PMC9422508 DOI: 10.1016/j.bjorl.2018.11.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 11/11/2018] [Indexed: 11/19/2022] Open
Abstract
Introduction Deficient auditory processing can cause problems with speech perception and affect the development and evolution of reading skills. The efferent auditory pathway has an important role in normal auditory system functions like speech-in-noise perception, but there is still no general agreement on this. Objective To study the performance of the efferent auditory system in a group of children with reading impairment in comparison with normal reading and evaluation of its relationship with speech-in-noise perception. Methods A total of 53 children between the ages of 8–12 years were selected for the study of which 27 were with reading impairment and 26 were normal reading children. Transient evoked otoacoustic emissions suppression and auditory recognition of words-in-noise test were performed for all the children. Results The average amplitude of transient evoked otoacoustic emissions suppression showed a significant difference between the two groups in the right (p = 0.004) and in the left ear (p = 0.028). Assessment of the relationship between transient evoked otoacoustic emissions suppression and monaural auditory recognition of words-in-noise scores showed a significant moderate negative relationship only in the right ear (p = 0.034, r = −0.41) of the normal reading children. Binaural auditory recognition of words-in-noise scores were significantly correlated with the amplitude of transient evoked otoacoustic emissions suppression in the right ear (p < 0.001, r = −0.75) and in the left ear (p < 0.001, r = −0.64) of normal reading children. In the reading impaired group, ?a weaker correlation was observed between binaural auditory recognition of words-in-noise scores and transient evoked otoacoustic emissions suppression in the right (p = 0.003, r = −0.55) and in the left ear (p = 0.012, r = −0.47). Conclusions Transient evoked otoacoustic emissions suppression pattern in the reading impaired group was different compared with normal reading children, and this difference could be related to efferent system performance. Words-in-noise scores in children with impaired reading were lower than in normal reading children. In addition, a relationship was found between transient evoked otoacoustic emissions suppression and words-in-noise scores in both normal and impaired reading children.
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Affiliation(s)
- Mehdi Akbari
- Iran University of Medical Sciences, School of Rehabilitation Sciences, Department of Audiology, Tehran, Iran
| | - Rasool Panahi
- Iran University of Medical Sciences, School of Rehabilitation Sciences, Department of Audiology, Tehran, Iran.
| | - Ayub Valadbeigi
- Iran University of Medical Sciences, School of Rehabilitation Sciences, Department of Audiology, Tehran, Iran
| | - Morteza Hamadi Nahrani
- Iran University of Medical Sciences, School of Rehabilitation Sciences, Department of Audiology, Tehran, Iran
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19
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Abstract
Atypical responses to sound are common in individuals with autism spectrum disorder (ASD), and growing evidence suggests an underlying auditory brainstem pathology. This review of the literature provides a comprehensive account of the structural and functional evidence for auditory brainstem abnormalities in ASD. The studies reviewed were published between 1975 and 2016 and were sourced from multiple online databases. Indices of both the quantity and quality of the studies reviewed are considered. Findings show converging evidence for auditory brainstem pathology in ASD, although the specific functions and anatomical structures involved remain equivocal. Two main trends emerge from the literature: (1) abnormalities occur mainly at higher levels of the auditory brainstem, according to structural imaging and electrophysiology studies; and (2) brainstem abnormalities appear to be more common in younger than older children with ASD. These findings suggest delayed maturation of neural transmission pathways between lower and higher levels of the brainstem and are consistent with the auditory disorders commonly observed in ASD, including atypical sound sensitivity, poor sound localization, and difficulty listening in background noise. Limitations of existing studies are discussed, and recommendations for future research are offered.
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20
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Morlet T, Nagao K, Greenwood LA, Cardinale RM, Gaffney RG, Riegner T. Auditory event-related potentials and function of the medial olivocochlear efferent system in children with auditory processing disorders. Int J Audiol 2019; 58:213-223. [PMID: 30682902 DOI: 10.1080/14992027.2018.1551632] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
OBJECTIVE The objectives were to investigate the function of central auditory pathways and of the medial efferent olivocochlear system (MOCS). DESIGN Event-related potentials (ERP) were recorded following the delivery of the stimulus /da/ in quiet and in ipsilateral, contralateral, and binaural noise conditions and correlated to the results of the auditory processing disorders (APD) diagnostic test battery. MOCS function was investigated by adding ipsilateral, contralateral, and binaural noise to transient evoked otoacoustic emission recordings. Auditory brainstem responses and pure tone audiogram were also evaluated. STUDY SAMPLE Nineteen children (7 to 12 years old) with APD were compared with 24 age-matched controls. RESULTS Otoacoustic emissions and ABR characteristics did not differ between groups, whereas ERP latencies were significantly longer and of higher amplitudes in APD children than in controls, in both quiet and noise conditions. The MOCS suppression was higher in APD children. CONCLUSIONS Findings indicate that children with APD present with neural deficiencies in both challenging and nonchallenging environments with an increase in the timing of several central auditory processes correlated to their behavioural performances. Meanwhile, their modulation of the auditory periphery under noisy conditions differs from control children with higher suppression.
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Affiliation(s)
- Thierry Morlet
- a Auditory Physiology and Psychoacoustics Research Laboratory , Center for Pediatric Auditory Speech and Sciences, Nemours/Alfred I. duPont Hospital for Children , Wilmington , DE , USA.,b Department of Linguistics and Cognitive Science, College of Arts & Science , University of Delaware , Newark , DE , USA.,c Georges Osborne College of Audiology , Salus University , Elkins Park , PA , USA
| | - Kyoko Nagao
- a Auditory Physiology and Psychoacoustics Research Laboratory , Center for Pediatric Auditory Speech and Sciences, Nemours/Alfred I. duPont Hospital for Children , Wilmington , DE , USA.,b Department of Linguistics and Cognitive Science, College of Arts & Science , University of Delaware , Newark , DE , USA.,d Communication Sciences and Disorders, College of Health Science , University of Delaware , Newark , DE , USA
| | - L Ashleigh Greenwood
- a Auditory Physiology and Psychoacoustics Research Laboratory , Center for Pediatric Auditory Speech and Sciences, Nemours/Alfred I. duPont Hospital for Children , Wilmington , DE , USA
| | - R Matthew Cardinale
- a Auditory Physiology and Psychoacoustics Research Laboratory , Center for Pediatric Auditory Speech and Sciences, Nemours/Alfred I. duPont Hospital for Children , Wilmington , DE , USA
| | - Rebecca G Gaffney
- a Auditory Physiology and Psychoacoustics Research Laboratory , Center for Pediatric Auditory Speech and Sciences, Nemours/Alfred I. duPont Hospital for Children , Wilmington , DE , USA
| | - Tammy Riegner
- e Department of Audiology , Nemours/Alfred I. duPont Hospital for Children , Wilmington , DE , USA
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21
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Ohmura Y, Ichikawa I, Kumagaya S, Kuniyoshi Y. Stapedial reflex threshold predicts individual loudness tolerance for people with autistic spectrum disorders. Exp Brain Res 2019; 237:91-100. [PMID: 30310938 PMCID: PMC6514100 DOI: 10.1007/s00221-018-5400-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 10/06/2018] [Indexed: 12/04/2022]
Abstract
People with autism spectrum disorder (ASD) frequently show the symptoms of oversensitivity to sound (hyperacusis). Although the previous studies have investigated methods for quantifying hyperacusis in ASD, appropriate physiological signs for quantifying hyperacusis in ASD remain poorly understood. Here, we investigated the relationship of loudness tolerance with the threshold of the stapedial reflex and with contralateral suppression of the distortion product otoacoustic emissions, which has been suggested to be related to hyperacusis in people without ASD. We tested an ASD group and a neurotypical group. The results revealed that only the stapedial reflex threshold was significantly correlated with loudness tolerance in both groups. In addition to reduced loudness tolerance, people with lower stapedial reflex thresholds also exhibited higher scores on the Social Responsiveness Scale-2.
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Affiliation(s)
- Yoshiyuki Ohmura
- Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
| | - Itsuki Ichikawa
- Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Shinichiro Kumagaya
- Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1, Komaba, Meguro-ku, Tokyo, 153-8904, Japan
| | - Yasuo Kuniyoshi
- Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
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22
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Aazh H, Knipper M, Danesh AA, Cavanna AE, Andersson L, Paulin J, Schecklmann M, Heinonen-Guzejev M, Moore BC. Insights from the third international conference on hyperacusis: causes, evaluation, diagnosis, and treatment. Noise Health 2018; 20:162-170. [PMID: 30136676 PMCID: PMC6122267 DOI: 10.4103/nah.nah_2_18] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Hyperacusis is intolerance of certain everyday sounds that causes significant distress and impairment in social, occupational, recreational, and other day-to-day activities. OBJECTIVE The aim of this report is to summarize the key findings and conclusions from the Third International Conference on Hyperacusis. TOPICS COVERED The main topics discussed comprise (1) diagnosis of hyperacusis and audiological evaluations, (2) neurobiological aspect of hyperacusis, (3) misophonia, (4) hyperacusis in autism spectrum disorder, (5) noise sensitivity, (6) hyperacusis-related distress and comorbid psychiatric illness, and (7) audiologist-delivered cognitive behavioral therapy for hyperacusis. CONCLUSIONS Implications for research and clinical practice are summarised.
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Affiliation(s)
- Hashir Aazh
- Audiology Department, Royal Surrey County Hospital, Guildford, UK
| | - Marlies Knipper
- Department of Molecular Physiology of Hearing, Hearing Research Institute Tübingen, Tübingen, Germany
| | - Ali A. Danesh
- Department of Communication Sciences and Disorders, Florida Atlantic University, Boca Raton, Florida, USA
| | - Andrea E. Cavanna
- Department of Neuropsychiatry, National Centre for Mental Health, Birmingham, UK
| | | | - Johan Paulin
- Department of Psychology, Umeå University, Umeå, Sweden
| | - Martin Schecklmann
- Department of Psychiatry and Psychotherapy, University of Regensburg, Regensburg, Germany
| | | | - Brian C.J. Moore
- Department of Experimental Psychology, University of Cambridge, Cambridge, UK
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23
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Lopez-Poveda EA. Olivocochlear Efferents in Animals and Humans: From Anatomy to Clinical Relevance. Front Neurol 2018; 9:197. [PMID: 29632514 PMCID: PMC5879449 DOI: 10.3389/fneur.2018.00197] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 03/13/2018] [Indexed: 11/13/2022] Open
Abstract
Olivocochlear efferents allow the central auditory system to adjust the functioning of the inner ear during active and passive listening. While many aspects of efferent anatomy, physiology and function are well established, others remain controversial. This article reviews the current knowledge on olivocochlear efferents, with emphasis on human medial efferents. The review covers (1) the anatomy and physiology of olivocochlear efferents in animals; (2) the methods used for investigating this auditory feedback system in humans, their limitations and best practices; (3) the characteristics of medial-olivocochlear efferents in humans, with a critical analysis of some discrepancies across human studies and between animal and human studies; (4) the possible roles of olivocochlear efferents in hearing, discussing the evidence in favor and against their role in facilitating the detection of signals in noise and in protecting the auditory system from excessive acoustic stimulation; and (5) the emerging association between abnormal olivocochlear efferent function and several health conditions. Finally, we summarize some open issues and introduce promising approaches for investigating the roles of efferents in human hearing using cochlear implants.
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Affiliation(s)
- Enrique A Lopez-Poveda
- Instituto de Neurociencias de Castilla y León, Universidad de Salamanca, Salamanca, Spain.,Departamento de Cirugía, Facultad de Medicina, Universidad de Salamanca, Salamanca, Spain.,Instituto de Investigación Biomédica de Salamanca, Universidad de Salamanca, Salamanca, Spain
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24
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Brout JJ, Edelstein M, Erfanian M, Mannino M, Miller LJ, Rouw R, Kumar S, Rosenthal MZ. Investigating Misophonia: A Review of the Empirical Literature, Clinical Implications, and a Research Agenda. Front Neurosci 2018; 12:36. [PMID: 29467604 PMCID: PMC5808324 DOI: 10.3389/fnins.2018.00036] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 01/15/2018] [Indexed: 02/04/2023] Open
Abstract
Misophonia is a neurobehavioral syndrome phenotypically characterized by heightened autonomic nervous system arousal and negative emotional reactivity (e. g., irritation, anger, anxiety) in response to a decreased tolerance for specific sounds. The aims of this review are to (a) characterize the current state of the field of research on misophonia, (b) highlight what can be inferred from the small research literature to inform treatment of individuals with misophonia, and (c) outline an agenda for research on this topic. We extend previous reviews on this topic by critically reviewing the research investigating mechanisms of misophonia and differences between misophonia and other conditions. In addition, we integrate this small but growing literature with basic and applied research from other literatures in a cross-disciplinary manner.
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Affiliation(s)
- Jennifer J Brout
- International Misophonia Research Network, New York, NY, United States
| | - Miren Edelstein
- International Misophonia Research Network, New York, NY, United States.,Department of Psychology, Center for Brain and Cognition, University of California, San Diego, San Diego, CA, United States
| | - Mercede Erfanian
- International Misophonia Research Network, New York, NY, United States.,Department of Psychology and Neuroscience, Maastricht University, Maastricht, Netherlands
| | - Michael Mannino
- Center for Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, United States
| | - Lucy J Miller
- International Misophonia Research Network, New York, NY, United States.,Department of Psychology, Brain and Cognition, Amsterdam University, Amsterdam, Netherlands
| | - Romke Rouw
- Brain and Cognition, Department of Psychology, University of Amsterdam, Amsterdam, Netherlands
| | - Sukhbinder Kumar
- International Misophonia Research Network, New York, NY, United States.,Auditory Group, Institute of Neuroscience, Newcastle University, Newcastle, United Kingdom
| | - M Zachary Rosenthal
- International Misophonia Research Network, New York, NY, United States.,Department of Psychiatry and Behavioral Science, Duke University Medical Center, Durham, NC, United States.,Department of Psychology and Neuroscience, Duke University, Durham, NC, United States
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25
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Wilson US, Sadler KM, Hancock KE, Guinan JJ, Lichtenhan JT. Efferent inhibition strength is a physiological correlate of hyperacusis in children with autism spectrum disorder. J Neurophysiol 2017; 118:1164-1172. [PMID: 28592687 PMCID: PMC5547266 DOI: 10.1152/jn.00142.2017] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 05/10/2017] [Accepted: 06/02/2017] [Indexed: 11/22/2022] Open
Abstract
Autism spectrum disorder (ASD) is a developmental disability that is poorly understood. ASD can influence communication, social interaction, and behavior. Children with ASD often have sensory hypersensitivities, including auditory hypersensitivity (hyperacusis). In adults with hyperacusis who are otherwise neurotypical, the medial olivocochlear (MOC) efferent reflex is stronger than usual. In children with ASD, the MOC reflex has been measured, but without also assessing hyperacusis. We assessed the MOC reflex in children with ASD by measuring the strength of MOC-induced inhibition of transient-evoked otoacoustic emissions (TEOAEs), a noninvasive physiological measure that reflects cochlear amplification. MOC activity was evoked by contralateral noise. Hyperacusis was assessed subjectively on the basis of the children's symptoms. We found a significant correlation between hyperacusis scores and MOC strength in children with ASD. When children were divided into ASD-with-severe-hyperacusis (ASDs), ASD-with-not-severe-hyperacusis (ASDns), and neurotypical (NT) groups, the last two groups had similar hyperacusis and MOC reflexes, whereas the ASDs group, on average, had hyperacusis and MOC reflexes that were approximately twice as strong. The MOC inhibition of TEOAEs averaged larger at all frequencies in the ASDs compared with ASDns and NT groups. The results suggest that the MOC reflex can be used to estimate hyperacusis in children with ASD and might be used to validate future questionnaires to assess hyperacusis. Our results also provide evidence that strong MOC reflexes in children with ASD are associated with hyperacusis and that hyperacusis is a comorbid condition and is not a necessary, integral part of the abnormal neural processing associated with ASD.NEW & NOTEWORTHY Children with autism spectrum disorder (ASD) are a heterogeneous group, some with hyperacusis and some without. Our research shows that hyperacusis can be estimated in children with ASD by using medial olivocochlear (MOC) reflex measurements. By establishing that an objective measure correlates with attributes of hyperacusis, our results enable future work to enable subtyping of children with ASD to provide improved individualized treatments to at-risk children and those without adequate language to describe their hyperacusis symptoms.
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Affiliation(s)
- Uzma S Wilson
- Washington University School of Medicine, Department of Otolaryngology, Saint Louis, Missouri
| | - Kate M Sadler
- Washington University School of Medicine, Department of Otolaryngology, Saint Louis, Missouri
| | - Kenneth E Hancock
- Massachusetts Eye & Ear Infirmary, Eaton-Peabody Laboratory of Auditory Physiology, Boston, Massachusetts; and.,Harvard Medical School, Department of Otolaryngology, Boston, Massachusetts
| | - John J Guinan
- Massachusetts Eye & Ear Infirmary, Eaton-Peabody Laboratory of Auditory Physiology, Boston, Massachusetts; and.,Harvard Medical School, Department of Otolaryngology, Boston, Massachusetts
| | - Jeffery T Lichtenhan
- Washington University School of Medicine, Department of Otolaryngology, Saint Louis, Missouri;
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26
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Bennetto L, Keith JM, Allen PD, Luebke AE. Children with autism spectrum disorder have reduced otoacoustic emissions at the 1 kHz mid-frequency region. Autism Res 2016; 10:337-345. [PMID: 27404771 DOI: 10.1002/aur.1663] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 06/06/2016] [Indexed: 11/11/2022]
Abstract
Autism spectrum disorder (ASD) is a behaviorally diagnosed disorder of early onset characterized by impairment in social communication and restricted and repetitive behaviors. Some of the earliest signs of ASD involve auditory processing, and a recent study found that hearing thresholds in children with ASD in the mid-range frequencies were significantly related to receptive and expressive language measures. In addition, otoacoustic emissions have been used to detect reduced cochlear function in the presence of normal audiometric thresholds. We were interested then to know if otoacoustic emissions in children with normal audiometric thresholds would also reveal differences between children with ASD and typical developing (TD) controls in mid-frequency regions. Our objective was to specifically measure baseline afferent otoacoustic emissions (distortion-product otoacoustic emissions [DPOAEs]), transient-evoked otoacoustic emissions (TrOAEs), and efferent suppression, in 35 children with high-functioning ASD compared with 42 aged-matched TD controls. All participants were males 6-17 years old, with normal audiometry, and rigorously characterized via Autism Diagnostic Interview-Revised and Autism Diagnostic Observation Schedule. Children with ASD had greatly reduced DPOAE responses in the 1 kHz frequency range, yet had comparable DPOAE responses at 0.5 and 4-8 kHz regions. Furthermore, analysis of the spectral features of TrOAEs revealed significantly decreased emissions in ASD in similar frequencies. No significant differences were noted in DPOAE or TrOAE noise floors, middle ear muscle reflex activity, or efferent suppression between children with ASD and TD controls. In conclusion, attention to specific-frequency deficits using non-invasive measures of cochlear function may be important in auditory processing impairments found in ASD. Autism Res 2017, 10: 337-345. © 2016 International Society for Autism Research, Wiley Periodicals, Inc.
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Affiliation(s)
- Loisa Bennetto
- Department of Clinical and Social Sciences in Psychology, University of Rochester, Rochester, New York
| | - Jessica M Keith
- Department of Clinical and Social Sciences in Psychology, University of Rochester, Rochester, New York
| | - Paul D Allen
- Department of Otolaryngology, University of Rochester Medical Center, Rochester, New York
| | - Anne E Luebke
- Departments of Biomedical Engineering and Neuroscience, University of Rochester Medical Center, Rochester, New York
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Lichtenhan JT, Wilson US, Hancock KE, Guinan JJ. Medial olivocochlear efferent reflex inhibition of human cochlear nerve responses. Hear Res 2016; 333:216-224. [PMID: 26364824 PMCID: PMC4788580 DOI: 10.1016/j.heares.2015.09.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 09/02/2015] [Indexed: 11/24/2022]
Abstract
Inhibition of cochlear amplifier gain by the medial olivocochlear (MOC) efferent system has several putative roles: aiding listening in noise, protection against damage from acoustic overexposure, and slowing age-induced hearing loss. The human MOC reflex has been studied almost exclusively by measuring changes in otoacoustic emissions. However, to help understand how the MOC system influences what we hear, it is important to have measurements of the MOC effect on the total output of the organ of Corti, i.e., on cochlear nerve responses that couple sounds to the brain. In this work we measured the inhibition produced by the MOC reflex on the amplitude of cochlear nerve compound action potentials (CAPs) in response to moderate level (52-60 dB peSPL) clicks from five, young, normal hearing, awake, alert, human adults. MOC activity was elicited by 65 dB SPL, contralateral broadband noise (CAS). Using tympanic membrane electrodes, approximately 10 h of data collection were needed from each subject to yield reliable measurements of the MOC reflex inhibition on CAP amplitudes from one click level. The CAS produced a 16% reduction of CAP amplitude, equivalent to a 1.98 dB effective attenuation (averaged over five subjects). Based on previous reports of efferent effects as functions of level and frequency, it is possible that much larger effective attenuations would be observed at lower sound levels or with clicks of higher frequency content. For a preliminary comparison, we also measured MOC reflex inhibition of DPOAEs evoked from the same ears with f2's near 4 kHz. The resulting effective attenuations on DPOAEs were, on average, less than half the effective attenuations on CAPs.
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Affiliation(s)
- J T Lichtenhan
- Washington University School of Medicine, Department of Otolaryngology, Saint Louis, MO 63110, USA.
| | - U S Wilson
- Washington University School of Medicine, Department of Otolaryngology, Saint Louis, MO 63110, USA; Missouri State University, Communications Sciences and Disorders, Springfield, MO 65897, USA
| | - K E Hancock
- Massachusetts Eye & Ear Infirmary, Eaton-Peabody Laboratory of Auditory Physiology, Boston, MA 02114, USA; Harvard Medical School, Department of Otology and Laryngology, Boston, MA 02115, USA
| | - J J Guinan
- Massachusetts Eye & Ear Infirmary, Eaton-Peabody Laboratory of Auditory Physiology, Boston, MA 02114, USA; Harvard Medical School, Department of Otology and Laryngology, Boston, MA 02115, USA
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Danesh AA, Lang D, Kaf W, Andreassen WD, Scott J, Eshraghi AA. Tinnitus and hyperacusis in autism spectrum disorders with emphasis on high functioning individuals diagnosed with Asperger's Syndrome. Int J Pediatr Otorhinolaryngol 2015; 79:1683-8. [PMID: 26243502 DOI: 10.1016/j.ijporl.2015.07.024] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 06/18/2015] [Accepted: 07/16/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVES To evaluate the prevalence of tinnitus and hyperacusis in individuals with Asperger's Syndrome (AS). METHODS A home-developed case-history survey and three item-weighted questionnaires: Tinnitus Reaction Questionnaire (TRQ), Tinnitus Handicap Inventory (THI), and the Hyperacusis Questionnaire (HQ) were employed. These tools categorize the subjective response to tinnitus and hyperacusis. The research tools were mailed to a mailing list of individuals with Asperger's Syndrome. RESULTS A total of 55 subjects diagnosed with AS were included in the analysis (15.5% response rate). Sixty-nine percent of all respondents (38/55) reported hyperacusis with an average HQ score of 20.7. Furthermore, 35% (19/55) reported perceiving tinnitus with average scores of 27 for the TRQ and 23 for the THI. Thirty-one percent (17/55) reported both hyperacusis and tinnitus. The prevalence of hyperacusis in the AS respondents remained relatively constant across age groups. CONCLUSIONS Hyperacusis and tinnitus are more prevalent in the ASD population subgroup diagnosed with AS under DSM-IV criteria than in the general public. Hyperacusis also appears to be more prevalent in the AS population than in the ASD population at large. Future research is warranted to provide insight into the possible correlation between tinnitus and hyperacusis symptoms and the abnormal social interactions observed in this group.
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Affiliation(s)
- Ali A Danesh
- Florida Atlantic University, United States; University of Miami, United States; Labyrinth Audiology, United States
| | | | - Wafaa Kaf
- Missouri State University, United States
| | | | - Jack Scott
- Florida Atlantic University, United States
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An auditory-neuroscience perspective on the development of selective mutism. Dev Cogn Neurosci 2015; 12:86-93. [PMID: 25625220 PMCID: PMC6989783 DOI: 10.1016/j.dcn.2015.01.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 01/02/2015] [Accepted: 01/07/2015] [Indexed: 11/20/2022] Open
Abstract
Selective mutism (SM) is a relatively rare psychiatric disorder of childhood characterized by consistent inability to speak in specific social situations despite the ability to speak normally in others. SM typically involves severe impairments in social and academic functioning. Common complications include school failure, social difficulties in the peer group, and aggravated intra-familial relationships. Although SM has been described in the medical and psychological literatures for many years, the potential underlying neural basis of the disorder has only recently been explored. Here we explore the potential role of specific auditory neural mechanisms in the psychopathology of SM and discuss possible implications for treatment.
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Tyler RS, Pienkowski M, Roncancio ER, Jun HJ, Brozoski T, Dauman N, Coelho CB, Andersson G, Keiner AJ, Cacace AT, Martin N, Moore BCJ. A review of hyperacusis and future directions: part I. Definitions and manifestations. Am J Audiol 2014; 23:402-19. [PMID: 25104073 DOI: 10.1044/2014_aja-14-0010] [Citation(s) in RCA: 177] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
PURPOSE Hyperacusis can be extremely debilitating, and at present, there is no cure. We provide an overview of the field, and possible related areas, in the hope of facilitating future research. METHOD We review and reference literature on hyperacusis and related areas. We have divided the review into 2 articles. In Part I, we discuss definitions, epidemiology, different etiologies and subgroups, and how hyperacusis affects people. In Part II, we review measurements, models, mechanisms, and treatments, and we finish with some suggestions for further research. RESULTS Hyperacusis encompasses a wide range of reactions to sound, which can be grouped into the categories of excessive loudness, annoyance, fear, and pain. Many different causes have been proposed, and it will be important to appreciate and quantify different subgroups. Reasonable approaches to assessing the different forms of hyperacusis are emerging, including psychoacoustical measures, questionnaires, and brain imaging. CONCLUSIONS Hyperacusis can make life difficult for many, forcing sufferers to dramatically alter their work and social habits. We believe this is an opportune time to explore approaches to better understand and treat hyperacusis.
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Affiliation(s)
| | | | | | | | - Tom Brozoski
- Southern Illinois University School of Medicine, Springfield
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Namasivayam AK, Le DJ, Hard J, Lewis SE, Neufeld C, van Lieshout P. Peripheral auditory tuning for vowels. J Integr Neurosci 2014; 12:461-74. [PMID: 24372066 DOI: 10.1142/s0219635213500283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
In this study, 35 young, healthy adults were tested on whether speech-like stimuli evoke a unique response in the auditory efferent system. To this end, descending cortical influences on medial olivocochlear (MOC) activity were indirectly evaluated by studying the effects of contralateral suppression on distortion product otoacoustic emissions (DPOAEs) under four conditions: (a) in the absence of any contralateral noise (Baseline), (b) presence of contralateral broadband noise (Noise Baseline), (c) vowel discrimination-in-noise task (VDN) and (d) tone discrimination-in-noise (TDN) task. A statistically significant release from suppression was evident across all tested DPOAE frequencies (1, 1.5 and 2 kHz) only for the VDN task (p < 0.05), which yielded greater release from suppression than the TDN task. These findings indicate that during active listening in the presence of noise, the MOC activity may be differentially modulated depending on the type of stimulus (vowel vs. tone). Specifically, in the presence of background noise, vowels may show a greater release from suppression in the cochlea than frequency, intensity and duration matched tones.
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Affiliation(s)
- Aravind Kumar Namasivayam
- Department of Speech-Language Pathology, University of Toronto, Toronto, ON, Canada M5G 1V7, Canada , Toronto Rehabilitation Institute (TRI), Toronto, ON, Canada M5G 2A2, Canada
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Kaf WA, Danesh AA. Distortion-product otoacoustic emissions and contralateral suppression findings in children with Asperger's Syndrome. Int J Pediatr Otorhinolaryngol 2013; 77:947-54. [PMID: 23562236 DOI: 10.1016/j.ijporl.2013.03.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Revised: 03/02/2013] [Accepted: 03/08/2013] [Indexed: 11/27/2022]
Abstract
OBJECTIVES Children with Asperger's Syndrome (AS) often demonstrate auditory behaviors such as hypersensitivity to sounds and poor performance in noisy environments. These auditory behaviors may be related to cochlear dysfunction and abnormal medial olivocochlear bundle (MOCB) activity. The objective of this study was to examine the distortion-product otoacoustic emissions (DPOAEs) with and without contralateral white noise to evaluate outer hair cell activity and MOCB activity in children with AS. METHODS A case control study where 18 boys with AS and 18 age-matched control subjects participated in the study. For both groups, DPOAEs were recorded at 4031, 2627, 1969, and 1359 Hz f2 frequencies with and without contralateral white noise at 30 dB SL. DPOAE SNRs and difference scores were analyzed for possible differences between both groups and age subgroups (young and old children). RESULTS In the quiet condition, there were no significant group or ear differences in DPOAEs SNR. However, DPOAEs SNR were larger at 4031 Hz than at lower frequencies in both groups, mostly due to negative effect of background noise on low frequency response. Contralateral noise resulted in both suppression and enhancement of the DPOAE SNRs in 93% of the control group and 90% of the AS group. However, there were no significant differences in suppression and enhancement between the two groups or age subgroups. The young controls had right ear advantage and significantly larger suppression at all frequencies except 4031 Hz than old controls. The young children with AS had slight left ear advantage and significantly larger suppression only at 2672 Hz compared to the old children with AS. CONCLUSIONS The results, indicating minor differences in DPOAEs and contralateral suppression and enhancement of DPOAEs between both control and AS groups and age subgroups, suggest subtle differences in the function of the outer hair cells and the MOCB activity. Therefore, other central auditory processing in the temporal lobe, limbic system and autonomic nervous system may be involved in the generation of hypersensitivity to sounds and difficulty understanding in noisy environments in children with AS.
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Affiliation(s)
- Wafaa A Kaf
- Communication Sciences and Disorders Department, Missouri State University, Springfield, MO 65897, USA.
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