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Thai-Van H, Veuillet E, Le Normand MT, Damien M, Joly CA, Reynard P. The Magnitude of Contralateral Suppression of Otoacoustic Emissions Is Ear- and Age-Dependent. J Clin Med 2023; 12:4553. [PMID: 37445587 DOI: 10.3390/jcm12134553] [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: 06/20/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023] Open
Abstract
The maturation of the uncrossed medial olivocochlear (UMOC) efferent remains poorly documented to date. The UMOC efferent system allows listeners to not only detect but also to process, recognize, and discriminate auditory stimuli. Its fibers can be explored non-invasively by recording the effect of contralateral acoustic stimulation (CAS), resulting in a decrease in the amplitude of transient evoked otoacoustic emissions (TEOAE). The objective of the present cross-sectional study was to investigate how the effectiveness of this system varies with age in healthy subjects aged 8 years to adulthood. For this purpose, 120 right-handed native French-speaking subjects (57 females and 63 males) were divided into five age groups of 24 subjects each: 8y-10y, 10y-11y6m, 11y6m-13y, 13y-17y, and ≥18y. TEOAE amplitudes with and without CAS were recorded. The equivalent attenuation (EA) was calculated, corresponding to the change in TEOAE amplitude equivalent to the effect generated by CAS. General linear models were performed to control for the effect of ear, sex, and age on EA. No sex effect was found. A stronger EA was consistently found regardless of age group in the right ear compared to the left. In contrast to the right ear, for which, on average, EA remained constant across age groups, an increasingly weaker TEOAE suppression effect with age was found in the left ear, reinforcing the asymmetrical functioning of the UMOC efferent system in favor of the right ear in adulthood. Further studies are needed to investigate the lateralization of the UMOC efferent system and its changes over time in cases of atypical or reversed cortical asymmetries, especially in subjects with specific learning disorders.
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Affiliation(s)
- Hung Thai-Van
- Institut de l'Audition, Institut Pasteur, Inserm, 75012 Paris, France
- Service d'Audiologie et d'Explorations Oto-Neurologiques, Hôpital Edouard Herriot, Hospices Civils de Lyon, 69003 Lyon, France
- Faculty of Medicine, Université Claude Bernard Lyon 1, 69100 Villeurbanne, France
| | - Evelyne Veuillet
- Institut de l'Audition, Institut Pasteur, Inserm, 75012 Paris, France
- Service d'Audiologie et d'Explorations Oto-Neurologiques, Hôpital Edouard Herriot, Hospices Civils de Lyon, 69003 Lyon, France
- Faculty of Medicine, Université Claude Bernard Lyon 1, 69100 Villeurbanne, France
| | - Marie-Thérèse Le Normand
- Institut de l'Audition, Institut Pasteur, Inserm, 75012 Paris, France
- Laboratoire Psychopathologie et Processus de Santé, URP 4057, Université Paris Cité, 92100 Boulogne Billancourt, France
| | - Maxime Damien
- Institut de l'Audition, Institut Pasteur, Inserm, 75012 Paris, France
- Service d'Audiologie et d'Explorations Oto-Neurologiques, Hôpital Edouard Herriot, Hospices Civils de Lyon, 69003 Lyon, France
- Faculty of Medicine, Université Claude Bernard Lyon 1, 69100 Villeurbanne, France
| | - Charles-Alexandre Joly
- Institut de l'Audition, Institut Pasteur, Inserm, 75012 Paris, France
- Service d'Audiologie et d'Explorations Oto-Neurologiques, Hôpital Edouard Herriot, Hospices Civils de Lyon, 69003 Lyon, France
- Faculty of Medicine, Université Claude Bernard Lyon 1, 69100 Villeurbanne, France
| | - Pierre Reynard
- Institut de l'Audition, Institut Pasteur, Inserm, 75012 Paris, France
- Service d'Audiologie et d'Explorations Oto-Neurologiques, Hôpital Edouard Herriot, Hospices Civils de Lyon, 69003 Lyon, France
- Faculty of Medicine, Université Claude Bernard Lyon 1, 69100 Villeurbanne, France
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Culhaoglu B, Erbek SS, İnce DA, Ecevit AN, Erbek S. Medial olivary complex reflex in term newborns with hyperbilirubinemia. Int J Pediatr Otorhinolaryngol 2021; 147:110777. [PMID: 34116320 DOI: 10.1016/j.ijporl.2021.110777] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 03/21/2021] [Accepted: 05/17/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVE This study aimed to compare the integrity of the efferent auditory pathways of newborns that had high hyperbilirubinemia levels and required treatment due to these and healthy newborns. METHODS Term-born (37 weeks or later) infants that were brought to the Newborn Polyclinic of the Başkent University Hospital were included in the study. The study included a total of 84 infants including healthy newborns (n = 42) and those that had jaundice and were receiving phototherapy (n = 42). After conducting a general otorhinolaryngology examination on all newborns included in the study, Transient Otoacoustic Emission (TEOAE) test was carried out in the absence and presence of contralateral noise. The obtained contralateral suppression values were compared between the two groups. RESULTS In the TEOAE test, the responses obtained at 1 kHz in the newborns receiving phototherapy were found to be lower. The difference between the groups was significant (p = 0.038). The rates of suppression presence at 2 kHz, 2.8 kHz and total OAE were found significantly higher (p < 0.05) in the group not receiving phototherapy. Among the phototherapy-receiving infants, the hyperbilirubinemia levels of the infants in whom suppression was obtained in the contralateral suppression test did not show a statistically significant difference in comparison to those in whom suppression was not obtained (p > 0.05). CONCLUSION Based on the obtained data, hyperbilirubinemia may have a disruptive effect on the efferent auditory system in newborns. Consequently, we are of the opinion that, in addition to hearing screening in risky newborn infants, a MOC suppression test would be useful.
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Affiliation(s)
- Belde Culhaoglu
- Dept. of Otolaryngology, Faculty of Medicine, Baskent University, Ankara, Turkey.
| | - Selim S Erbek
- Dept. of Otolaryngology, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - Deniz Anuk İnce
- Dept. of Pediatric Neonatology, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - Ayşe Nur Ecevit
- Dept. of Pediatric Neonatology, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - Seyra Erbek
- Dept. of Otolaryngology, Faculty of Medicine, Baskent University, Ankara, Turkey
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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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Boothalingam S, Allan C, Allen P, Purcell DW. The Medial Olivocochlear Reflex Is Unlikely to Play a Role in Listening Difficulties in Children. Trends Hear 2020; 23:2331216519870942. [PMID: 31558110 PMCID: PMC6767729 DOI: 10.1177/2331216519870942] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The medial olivocochlear reflex (MOCR) has been implicated in several auditory processes. The putative role of the MOCR in improving speech perception in noise is particularly relevant for children who complain of listening difficulties (LiD). The hypothesis that the MOCR may be impaired in individuals with LiD or auditory processing disorder has led to several investigations but without consensus. In two related studies, we compared the MOCR functioning of children with LiD and typically developing (TD) children in the same age range (7-17 years). In Study 1, we investigated ipsilateral, contralateral, and bilateral MOCR using forward-masked click-evoked otoacoustic emissions (CEOAEs; n = 17 TD, 17 LiD). In Study 2, we employed three OAE types: CEOAEs (n = 16 TD, 21 LiD), stimulus frequency OAEs (n = 21 TD, 30 LiD), and distortion product OAEs (n = 17 TD, 22 LiD) in a contralateral noise paradigm. Results from both studies suggest that the MOCR functioning is not significantly different between the two groups. Some likely reasons for differences in findings among published studies could stem from the lack of strict data quality measures (e.g., high signal-to-noise ratio, control for the middle ear muscle reflex) that were enforced in the present study. The inherent variability of the MOCR, the subpar reliability of current MOCR methods, and the heterogeneity in auditory processing deficits that underlie auditory processing disorder make detecting clinically relevant differences in MOCR function impractical using current methods.
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Affiliation(s)
- Sriram Boothalingam
- Department of Communication Sciences and Disorders, University of Wisconsin, Madison, WI, USA.,Waisman Center, University of Wisconsin, Madison, WI, USA
| | - Chris Allan
- School of Communication Sciences and Disorders, Western University, London, ON, Canada.,National Centre for Audiology, Western University, London, ON, Canada
| | - Prudence Allen
- School of Communication Sciences and Disorders, Western University, London, ON, Canada.,National Centre for Audiology, Western University, London, ON, Canada
| | - David W Purcell
- School of Communication Sciences and Disorders, Western University, London, ON, Canada.,National Centre for Audiology, Western University, London, ON, Canada
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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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Aksoy ED, Culhaoğlu B, Öcal FCA, Erbek SS, Erbek HS. Does the Efferent Auditory System Have a Role in Children with Specific Learning Disabilities? Turk Arch Otorhinolaryngol 2019; 57:30-33. [PMID: 31049250 DOI: 10.5152/tao.2019.3748] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Accepted: 12/23/2018] [Indexed: 01/18/2023] Open
Abstract
Objective This study aimed to compare the baseline transient otoacoustic emission (t-OAE) amplitudes and medial olivo-cochlear (MOC) efferent activity in children with specific learning disability (SLD) and children with normal development. Methods The study was conducted in two groups. The patient group included 30 children aged 6 to 10 years and diagnosed with SLD, and the control group included 30 children in the same age range without SLD. The patient group included eight males and 22 females, and the control group included 14 females and 16 males. t-OAE and contralateral suppression test were performed in both groups. Results In the first t-OAE measurements, a statistically significant difference was observed between the patient and the control group at frequencies of 1400, 2000, 2800, and 4000 Hz, but no such difference was observed at 1000 Hz frequency. In the control group, significantly better emission amplitudes were observed. No differences were found at any frequency between the patient and the control groups after suppression. When the subjects in the two groups were compared among themselves, there was a statistically significant difference between the before and after suppression scores in the patient group except at 4000 Hz. Likewise, an important difference was also observed in all frequencies in the control group. Conclusion This study shows that suppression effects of t-OAE on children diagnosed with SLD and children with no SDL are not significantly different.
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Affiliation(s)
- Emine Demirel Aksoy
- Department of Otorhinolaryngology, Başkent University School of Medicine, Ankara, Turkey
| | - Belde Culhaoğlu
- Department of Otorhinolaryngology, Başkent University School of Medicine, Ankara, Turkey
| | - F Ceyda Akın Öcal
- Department of Otorhinolaryngology, Gülhane Training and Research Hospital, Ankara, Turkey
| | - Selim Sermed Erbek
- Department of Otorhinolaryngology, Başkent University School of Medicine, Ankara, Turkey
| | - Hatice Seyra Erbek
- Department of Otorhinolaryngology, Başkent University School of Medicine, Ankara, Turkey
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Stuart A, Kerls AN. Does Contralateral Inhibition of Transient Evoked Otoacoustic Emissions Suggest Sex or Ear Laterality Effects? Am J Audiol 2018; 27:272-282. [PMID: 29946686 DOI: 10.1044/2018_aja-17-0106] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 03/26/2018] [Indexed: 11/09/2022] Open
Abstract
PURPOSE The purpose of this study was to examine contralateral inhibition of transient evoked otoacoustic emissions (TEOAEs) in young adults with normal hearing as a function of ear and sex. METHOD Young female (n = 50) and male (n = 50) adults with normal hearing participated. TEOAEs were measured bilaterally with 80 dB peSPL nonlinear clicks and 60 dB peSPL linear clicks with and without a contralateral broadband noise elicitor at 65 dB SPL. Absolute TEOAE inhibition and normalized TEOAE inhibition (i.e., percentage of inhibition) were examined. RESULTS With both 80 and 60 dB peSPL evoking stimuli, there were significant main effects of ear and sex (p < .05). TEOAE levels were larger in women and in the right ear. There were no statistically significant main effects of ear and sex on absolute TEOAE inhibition (p > .05). Significant main effects of ear and sex were, however, found with normalized TEOAE inhibition (p < .05; greater in men and in the left ear). Statistically significant negative correlations and significant linear predictive relations were found between TEOAE levels and normalized TEOAE inhibitions in both ears (p < .001). There is no evidence of the same with absolute inhibition of TEOAEs (p > .05). CONCLUSIONS If one considers that efferent inhibition of TEOAEs is an absolute quantity, the significant effect of ear and sex on normalized inhibition and the negative association and linear predictive relationship between TEOAE level and inhibition can be viewed as spurious effects. As such, contralateral inhibition of TEOAEs does not suggest sex or ear laterality effects.
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Clause A, Lauer AM, Kandler K. Mice Lacking the Alpha9 Subunit of the Nicotinic Acetylcholine Receptor Exhibit Deficits in Frequency Difference Limens and Sound Localization. Front Cell Neurosci 2017; 11:167. [PMID: 28663725 PMCID: PMC5471293 DOI: 10.3389/fncel.2017.00167] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 05/31/2017] [Indexed: 01/16/2023] Open
Abstract
Sound processing in the cochlea is modulated by cholinergic efferent axons arising from medial olivocochlear neurons in the brainstem. These axons contact outer hair cells in the mature cochlea and inner hair cells during development and activate nicotinic acetylcholine receptors composed of α9 and α10 subunits. The α9 subunit is necessary for mediating the effects of acetylcholine on hair cells as genetic deletion of the α9 subunit results in functional cholinergic de-efferentation of the cochlea. Cholinergic modulation of spontaneous cochlear activity before hearing onset is important for the maturation of central auditory circuits. In α9KO mice, the developmental refinement of inhibitory afferents to the lateral superior olive is disturbed, resulting in decreased tonotopic organization of this sound localization nucleus. In this study, we used behavioral tests to investigate whether the circuit anomalies in α9KO mice correlate with sound localization or sound frequency processing. Using a conditioned lick suppression task to measure sound localization, we found that three out of four α9KO mice showed impaired minimum audible angles. Using a prepulse inhibition of the acoustic startle response paradigm, we found that the ability of α9KO mice to detect sound frequency changes was impaired, whereas their ability to detect sound intensity changes was not. These results demonstrate that cholinergic, nicotinic α9 subunit mediated transmission in the developing cochlear plays an important role in the maturation of hearing.
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Affiliation(s)
- Amanda Clause
- Departments of Otolaryngology and Neurobiology, University of PittsburghPittsburgh, PA, United States.,Center for the Neural Basis of Cognition, University of PittsburghPittsburgh, PA, United States
| | - Amanda M Lauer
- Center for Hearing and Balance, David M. Rubenstein Center, Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins UniversityBaltimore, MD, United States
| | - Karl Kandler
- Departments of Otolaryngology and Neurobiology, University of PittsburghPittsburgh, PA, United States.,Center for the Neural Basis of Cognition, University of PittsburghPittsburgh, PA, United States.,Department of Bioengineering, University of PittsburghPittsburgh, PA, United States
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Medial olivocochlear function in children with poor speech-in-noise performance and language disorder. Int J Pediatr Otorhinolaryngol 2017; 96:116-121. [PMID: 28390599 DOI: 10.1016/j.ijporl.2017.03.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 02/24/2017] [Accepted: 03/01/2017] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Contralateral masking of transient-evoked otoacoustic emissions is a phenomenon that suggests an inhibitory effect of the olivocochlear efferent auditory pathway. Many studies have been inconclusive in demonstrating a clear connection between this system and a behavioral speech-in-noise listening skill. The purpose of this study was to investigate the activation of a medial olivocochlear (MOC) efferent in children with poor speech-in-noise (PSIN) performance and children with language impairment and PSIN (SLI + PSIN). METHODS Transient evoked otoacoustic emissions (TEOAEs) with and without contralateral white noise were tested in 52 children (between 6 and 12 years). These children were arranged in three groups: typical development (TD) (n = 25), PSIN (n = 14) and SLI + PSI (n = 13). RESULTS PSIN and SLI + PSI groups presented reduced otoacoustic emission suppression in comparison with the TD group. CONCLUSION Our finding suggests differences in MOC function among children with typical development and children with poor SIN and language problems.
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Kumar P, Grover V, Publius A S, Sanju HK, Sinha S. Assessment of rock musician's efferent system functioning using contralateral suppression of otoacoustic emissions. World J Otorhinolaryngol Head Neck Surg 2016; 2:214-218. [PMID: 29204569 PMCID: PMC5698541 DOI: 10.1016/j.wjorl.2016.11.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 11/29/2016] [Indexed: 11/28/2022] Open
Abstract
Objective Contralateral suppression of oto acoustic emission (OAE) is referred as activation of efferent system. Previous literature mentioned about the importance of contralateral suppression of OAEs as a tool to assess efferent system in different groups of population. There is dearth of literature to explore the efferent system function in experienced musicians exposed to rock music using TEOAEs and DPOAEs. Methods Two groups of participant (14 rock musicians and 14 non-musicians) in the age range of 18–25 years were involved in the study. Contralateral suppression of TEOAEs and DPOAEs were measured using ILO (Version 6) in both groups. Results Descriptive statistics showed higher suppression of TEOAEs and DPOAEs in rock-musicians at most of the frequencies in comparison to non-musicians. For DPOAE measures, Mann Whitney U test results revealed significantly greater DPOAE suppression only at 1 kHz and 3 kHz in rock-musicians compared to non-musicians. For within group comparison, Kruskal Wallis test results revealed there were significant difference observed across most of the frequencies i.e. at 1 kHz, 3 kHz and 6 kHz. For TEOAE measures, Mann Whitney U test results revealed that only at 2 kHz, TEOAE suppression in rock-musician was significantly greater compared to non-musicians. Similarly, Kuskal Wallis test results revealed that within group there were no significant differences observed for most of the frequencies except 2 kHz. Conclusions Based on the above finding, present study concludes that rock musicians are having better efferent system compared to non-musicians. No suppression effect at few frequencies probably indicates more vulnerability at those frequencies. Contralateral suppression of DPOAE shows more significant finding in comparison to contralateral suppression of TEOAEs in present study.
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Affiliation(s)
- Prawin Kumar
- Department of Audiology, All India Institute of Speech and Hearing, Mysuru 6, Karnataka, India
| | - Vibhu Grover
- Department of Audiology, All India Institute of Speech and Hearing, Mysuru 6, Karnataka, India
| | - Sam Publius A
- Department of Audiology, All India Institute of Speech and Hearing, Mysuru 6, Karnataka, India
| | - Himanshu Kumar Sanju
- Department of Audiology and Speech-Language Pathology, Amity Medical School, Amity University, Gurgaon, Haryana, India
| | - Sachchidanand Sinha
- Department of Speech and Hearing, Sri Aurobindo Institute of Medical Science, Indore, Madhya Pradesh, India
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Stuart A, Cobb KM. Reliability of measures of transient evoked otoacoustic emissions with contralateral suppression. JOURNAL OF COMMUNICATION DISORDERS 2015; 58:35-42. [PMID: 26431768 DOI: 10.1016/j.jcomdis.2015.09.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Revised: 08/19/2015] [Accepted: 09/10/2015] [Indexed: 06/05/2023]
Abstract
The reliability of measures of transient evoked otoacoustic emissions (TEOAEs) with contralateral suppression was examined. The effect of test session (i.e., initial test; retest without probe removal; retest with probe removal; and retest 1-2 days post initial test), gender, and ear was examined in 14 young adult females and 14 young adult males. TEOAEs were obtained bilaterally with 60 dB peSPL linear click stimuli with and without a contralateral 65 dB SPL broadband noise suppressor. Absolute TEOAE suppression and a normalized index of TEOAE suppression (i.e., percentage of suppression) were examined. Reliability of these measures was assessed with repeated measures linear mixed model analysis of variance, a coefficient of reliability, and Bland-Altman analyses. There were no statistically significant (p>0.05) main effects of test, gender, and ear or interactions for both absolute dB and % TEOAE suppression values. Cronbach's α were greater than 0.90 across the four tests for both TEOAE measures. Mean test differences or bias (i.e., between the initial and subsequent tests) for absolute and % TEOAE suppression ranged from -0.05 to 0.11 dB and -1.5% to 1.1%, respectively. There was no proportional/systematic bias with the mean differences of the first and subsequent measurements. Data herein were consistent with the view that bilateral TEOAE suppression measures are reliable across test sessions of 1-2 days among females and males and may provide a method to monitor medial olivocochlear efferent reflex status over time.
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12
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Boothalingam S, Allan C, Allen P, Purcell D. Cochlear Delay and Medial Olivocochlear Functioning in Children with Suspected Auditory Processing Disorder. PLoS One 2015; 10:e0136906. [PMID: 26317850 PMCID: PMC4552631 DOI: 10.1371/journal.pone.0136906] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 08/09/2015] [Indexed: 11/18/2022] Open
Abstract
Behavioral manifestations of processing deficits associated with auditory processing disorder (APD) have been well documented. However, little is known about their anatomical underpinnings, especially cochlear processing. Cochlear delays, a proxy for cochlear tuning, measured using stimulus frequency otoacoustic emission (SFOAE) group delay, and the influence of the medial olivocochlear (MOC) system activation at the auditory periphery was studied in 23 children suspected with APD (sAPD) and 22 typically developing (TD) children. Results suggest that children suspected with APD have longer SFOAE group delays (possibly due to sharper cochlear tuning) and reduced MOC function compared to TD children. Other differences between the groups include correlation between MOC function and SFOAE delay in quiet in the TD group, and lack thereof in the sAPD group. MOC-mediated changes in SFOAE delay were in opposite directions between groups: increase in delay in TD vs. reduction in delay in the sAPD group. Longer SFOAE group delays in the sAPD group may lead to longer cochlear filter ringing, and potential increase in forward masking. These results indicate differences in cochlear and MOC function between sAPD and TD groups. Further studies are warranted to explore the possibility of cochlea as a potential site for processing deficits in APD.
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Affiliation(s)
- Sriram Boothalingam
- National Center for Audiology, Western University, London, ON, Canada
- * E-mail:
| | - Chris Allan
- National Center for Audiology, Western University, London, ON, Canada
| | - Prudence Allen
- National Center for Audiology, Western University, London, ON, Canada
- School of Communication Sciences and Disorders, Western University, London, ON, Canada
| | - David Purcell
- National Center for Audiology, Western University, London, ON, Canada
- School of Communication Sciences and Disorders, Western University, London, ON, Canada
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Efferent inhibition of otoacoustic emissions in preterm neonates. Braz J Otorhinolaryngol 2015; 81:491-7. [PMID: 26277589 PMCID: PMC9449056 DOI: 10.1016/j.bjorl.2015.07.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 10/23/2014] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Abnormalities in auditory function of newborns may occur not only because of preterm birth, but also from the use of medications and from diseases related to prematurity. OBJECTIVE To analyze the inhibitory effect from stimulation of the olivocochlear efferent system on transient evoked otoacoustic emissions in preterm neonates, comparing these data with those from full-term neonates. METHODS This was a prospective, cross-sectional, contemporary cohort study with 125 neonates, pooled into two groups: full-term (72 full-term neonates, 36 females and 36 males, born at 37-41 weeks of gestational age); and preterm (53 neonates, 28 males and 25 females, born at ≤36 weeks of gestational age, evaluated at the corrected gestational age of 37-41 weeks). Otoacoustic emissions were recorded using linear and nonlinear click-evoked stimuli, with and without contralateral stimulation. RESULTS The inhibitory effect of the efferent pathway in otoacoustic emissions was different (p=0.012) between groups, and a mean reduction of 1.48dB SPL in full-term births and of 1.02dB SPL in preterm births was observed for the non-linear click-evoked stimulus. CONCLUSION The results suggest a reduced inhibitory effect of the olivocochlear efferent system on otoacoustic emissions in preterm neonates.
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Mishra SK. Medial efferent mechanisms in children with auditory processing disorders. Front Hum Neurosci 2014; 8:860. [PMID: 25386132 PMCID: PMC4209830 DOI: 10.3389/fnhum.2014.00860] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 10/06/2014] [Indexed: 12/04/2022] Open
Abstract
Auditory processing disorder (APD) affects about 2–5% of children. However, the nature of this disorder is poorly understood. Children with APD typically have difficulties in complex listening situations. One mechanism thought to aid in listening-in-noise is the medial olivocochlear (MOC) inhibition. The purpose of this review was to critically analyze the published data on MOC inhibition in children with APD to determine whether the MOC efferents are involved in these individuals. The otoacoustic emission (OAE) methods used to assay MOC reflex were examined in the context of the current understanding of OAE generation mechanisms. Relevant literature suggests critical differences in the study population and OAE methods. Variables currently known to influence MOC reflex measurements, for example, middle-ear muscle reflexes or OAE signal-to-noise ratio, were not controlled in most studies. The use of potentially weaker OAE methods and the remarkable heterogeneity across studies does not allow for a definite conclusion whether or not the MOC reflex is altered in children with APD. Further carefully designed studies are needed to confirm the involvement of MOC efferents in APD. Knowledge of efferent functioning in children with APD would be mechanistically and clinically beneficial.
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Affiliation(s)
- Srikanta K Mishra
- Department of Special Education and Communication Disorders, New Mexico State University , Las Cruces, NM , USA
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Goodman SS, Mertes IB, Lewis JD, Weissbeck DK. Medial olivocochlear-induced transient-evoked otoacoustic emission amplitude shifts in individual subjects. J Assoc Res Otolaryngol 2013; 14:829-42. [PMID: 23982894 PMCID: PMC3825019 DOI: 10.1007/s10162-013-0409-9] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Accepted: 07/26/2013] [Indexed: 10/26/2022] Open
Abstract
Activation of the medial olivocochlear reflex (MOCR) can be assessed indirectly using transient-evoked otoacoustic emissions (TEOAEs). The change in TEOAE amplitudes when the MOCR is activated (medial olivocochlear (MOC) shift) has most often been quantified as the mean value in groups of subjects. The usefulness of MOC shift measurements may be increased by the ability to quantify significant shifts in individuals. This study used statistical resampling to quantify significant MOC shifts in 16 subjects. TEOAEs were obtained using transient stimuli containing energy from 1 to 10 kHz. A nonlinear paradigm was used to extract TEOAEs. Transient stimuli were presented at 30 dB sensation level (SL) with suppressor stimuli presented 12 dB higher. Contralateral white noise, used to activate the MOCR, was presented at 30 dB SL and was interleaved on and off in 30-s intervals during a 7-min recording period. Confounding factors of middle ear muscle reflex and slow amplitude drifts were accounted for. TEOAEs were analyzed in 11 1/3-octave frequency bands. The statistical significance of each individual MOC shift was determined using a bootstrap procedure. The minimum detectable MOC shifts ranged from 0.10 to 3.25 dB and were highly dependent on signal-to-noise ratio at each frequency. Subjects exhibited a wide range of magnitudes of significant MOC shifts in the 1.0-3.2-kHz region (median = 1.94 dB, range = 0.34-6.51 dB). There was considerable overlap between the magnitudes of significant and nonsignificant shifts. While most subjects had significant MOC shifts in one or more frequency bands below 4 kHz, few had significant shifts in all of these bands. Above 4 kHz, few significant shifts were seen, but this may have been due to lower signal-to-noise ratios. The specific frequency bands containing significant shifts were variable across individuals. Further work is needed to determine the clinical usefulness of examining MOC shifts in individuals.
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Affiliation(s)
- Shawn S. Goodman
- Department of Communication Sciences and Disorders, University of Iowa, Iowa City, IA 52242 USA
| | - Ian B. Mertes
- Department of Communication Sciences and Disorders, University of Iowa, Iowa City, IA 52242 USA
| | - James D. Lewis
- Department of Communication Sciences and Disorders, University of Iowa, Iowa City, IA 52242 USA
| | - Diana K. Weissbeck
- Department of Communication Sciences and Disorders, University of Iowa, Iowa City, IA 52242 USA
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Contralateral Suppression of Transient-Evoked Otoacoustic Emissions in Children With Sickle Cell Disease. Ear Hear 2012; 33:421-9. [DOI: 10.1097/aud.0b013e31823effd9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Basu M, Krishnan A, Weber-Fox C. Brainstem correlates of temporal auditory processing in children with specific language impairment. Dev Sci 2010; 13:77-91. [PMID: 20121865 DOI: 10.1111/j.1467-7687.2009.00849.x] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Deficits in identification and discrimination of sounds with short inter-stimulus intervals or short formant transitions in children with specific language impairment (SLI) have been taken to reflect an underlying temporal auditory processing deficit. Using the sustained frequency following response (FFR) and the onset auditory brainstem responses (ABR) we evaluated if children with SLI show abnormalities at the brainstem level consistent with a temporal processing deficit. To this end, the neural encoding of tonal sweeps, as reflected in the FFR, for different rates of frequency change, and the effects of reducing inter-stimulus interval on the ABR components were evaluated in 10 4-11-year-old SLI children and their age-matched controls. Results for the SLI group showed degraded FFR phase-locked neural activity that failed to faithfully track the frequency change presented in the tonal sweeps, particularly at the faster sweep rates. SLI children also showed longer latencies for waves III and V of the ABR and a greater prolongation of wave III at high stimulus rates (>30/sec), suggesting greater susceptibility to neural adaptation. These results taken together appear to suggest a disruption in the temporal pattern of phase-locked neural activity necessary to encode rapid frequency change and an increased susceptibility to desynchronizing factors related to faster rates of stimulus presentation in children with SLI.
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Affiliation(s)
- Madhavi Basu
- Department of Psychology, Concordia University, Canada
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Transient evoked otoacoustic emissions and contralateral suppressions in children with auditory listening problems. Auris Nasus Larynx 2010; 37:47-54. [DOI: 10.1016/j.anl.2009.02.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2008] [Revised: 01/07/2009] [Accepted: 02/07/2009] [Indexed: 11/19/2022]
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Grataloup C, Hoen M, Veuillet E, Collet L, Pellegrino F, Meunier F. Speech restoration: an interactive process. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2009; 52:827-838. [PMID: 18971288 DOI: 10.1044/1092-4388(2008/06-0235)] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
PURPOSE This study investigates the ability to understand degraded speech signals and explores the correlation between this capacity and the functional characteristics of the peripheral auditory system. METHOD The authors evaluated the capability of 50 normal-hearing native French speakers to restore time-reversed speech. The task required them to transcribe two-syllable items containing temporal reversions of variable sizes, ranging from no reversion to complete reversion, increasing by half-syllable steps. In parallel, the functionality of each participant's auditory efferent system was evaluated using contralateral suppression of click-evoked otoacoustic emissions. RESULTS Perceptual accuracy for time-reversed speech diminished when the size of the applied temporal distortion increased. A lexical benefit was evident, and an important interindividual variability in performance was observed. Functional exploration of the auditory system revealed that speech restoration performances correlated with the suppression strength of the participant's auditory efferent system. CONCLUSIONS These results suggest a clear relation between the functional asymmetry of the auditory efferent pathway (the right-side activity is greater than the left-side activity in right-handed participants) and the comprehension of acoustically distorted speech in normal-hearing participants. Further experiments are needed to better specify how the functionality of the medial olivocochlear bundle can cause phonological activation to be more efficient.
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Affiliation(s)
- Claire Grataloup
- Centre National de la Recherche Scientifique (CNRS), UMR 5596, Université Lyon 2, Lyon, France.
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Murdin L, Davies R. Otoacoustic emission suppression testing: A clinician's window onto the auditory efferent pathway. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/16513860802499957] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Garinis AC, Glattke T, Cone-Wesson BK. TEOAE suppression in adults with learning disabilities. Int J Audiol 2009; 47:607-14. [PMID: 18923982 DOI: 10.1080/14992020802129402] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The presentation of contralateral noise during the recording of transient evoked otoacoustic emissions (TEOAEs) reduces the amplitude of the TEOAE in normally-hearing adults. This is known as TEOAE suppression. The present study investigated TEOAE suppression in 18 adults with learning disabilities (LDs) compared to 18 adults without LDs. TEOAEs were elicited by 60 dB p.e. SPL clicks and were suppressed by the presentation of 60 dB SPL contralateral broadband noise. Suppression was measured as a change in the overall TEOAE response amplitude, and also analysed in 2-ms epochs representing different TEOAE frequency-response bands. A significant interaction was evident between group type and ear tested. Participants in the control group had right ear dominance for the suppression effect, whereas the left ear was found to be dominant for the LD group. These findings suggest a mechanism of the medial olivary cochlear bundle and efferent auditory pathway that differs in those with LD compared to those with typical learning abilities.
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Affiliation(s)
- Angela C Garinis
- Department of Speech, Language and Hearing Sciences, University of Arizona, Tucson, AZ 85721-0071, USA.
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Abstract
O processamento da informação sonora depende da integridade das vias auditivas aferentes e eferentes. O sistema auditivo eferente pode ser avaliado por meio dos reflexos acústicos e da supressão das emissões otoacústicas. OBJETIVO: Verificar a atividade do sistema auditivo eferente, por meio da supressão das emissões otoacústicas (EOA) e da sensibilização do reflexo acústico no distúrbio de processamento auditivo. CASUÍSTICA E MÉTODO: Estudo prospectivo: 50 crianças com alteração de processamento auditivo (grupo estudo) e 38 sem esta alteração (grupo controle), avaliadas por meio das EOA na ausência e presença de ruído contralateral e da pesquisa dos limiares do reflexo acústico na ausência e presença de estímulo facilitador contralateral. RESULTADOS: O valor médio da supressão das EOA foi de até 1,50 dB para o grupo controle e de até 1,26 dB para o grupo estudo. O valor médio da sensibilização dos reflexos foi de até 14,60 dB para o grupo estudo e de até 15,21 dB para o grupo controle. Não houve diferença estatisticamente significante entre as respostas dos grupos controle e estudo em ambos os procedimentos. CONCLUSÃO: O grupo estudo apresentou valores reduzidos na supressão das EOA e valores aumentados na sensibilização do reflexo acústico, em relação ao grupo controle.
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Burguetti FAR, Carvallo RMM. Efferent auditory system: its effect on auditory processing. Braz J Otorhinolaryngol 2008; 74:737-745. [PMID: 19082357 PMCID: PMC9445897 DOI: 10.1016/s1808-8694(15)31385-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2007] [Accepted: 08/25/2007] [Indexed: 11/21/2022] Open
Abstract
Auditory processing depends on afferent and efferent auditory pathways integrity. The efferent auditory system may be assessed in humans by two non-invasive and objective methods: acoustic reflex and otoacoustic emissions suppression. Aim Analyze the efferent auditory system activity by otoacoustic emission suppression and acoustic reflex sensitization in human subjects with auditory processing disorders. Method Prospective study: fifty children with auditory processing disorders (study group) and thirty-eight children without auditory processing disorders (control group) were evaluated using otoacoustic emission with and without contralateral noise; and acoustic reflex with and without contralateral facilitating stimuli. Results OAE suppression mean value was equal to or less than 1.50 dB for the control group, and equal to or less than 1.26 dB for the study group. The mean sensitization reflex value was equal to or less than 14.60 dB for the study group and equal to or less than 15.21 dB for the control group. There was no statistically significant difference between the responses from the control group and the study group in both procedures. Conclusion The study group had lower OAE suppression values and higher acoustic reflex sensitization values when compared to the control group.
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Affiliation(s)
| | - Renata Mota Mamede Carvallo
- Livre-docência (habilitation), associate professor, Speech Therapy Course, Faculdade de Medicina da USP. Faculdade de Medicina da Universidade de São Paulo
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Mukari SZMS, Mamat WHW. Medial olivocochlear functioning and speech perception in noise in older adults. Audiol Neurootol 2008; 13:328-34. [PMID: 18460868 DOI: 10.1159/000128978] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2007] [Accepted: 01/23/2008] [Indexed: 11/19/2022] Open
Abstract
The purposes of this study were to: (1) compare medial olivocochlear system (MOCS) functioning and speech perception in noise in young and older adults and (2) to quantify the correlation between MOCS functioning and speech perception in noise. Measurements were taken in 20 young (mean 26.3 +/- 2.1 years) and 20 older adults (mean 55.2 +/- 2.8 years). Contralateral distortion product otoacoustic emission (DPOAE) suppression was measured to assess MOCS functioning. Speech perception in noise was evaluated using the Hearing in Noise Test in noise-ipsilateral, noise-front and noise-contralateral test conditions. The results revealed that the older group had a significantly lower high-frequency (3-8 kHz) contralateral DPOAE suppression, and performed more poorly in the noise-ipsilateral condition than the younger group. However, there was no correlation between contralateral DPOAE suppression and speech perception in noise. This study suggests that poor speech perception performance in noise experienced by older adults might be due to a decline in medial olivocochlear functioning, among other factors.
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Affiliation(s)
- Siti Zamratol-Mai Sarah Mukari
- Department of Audiology and Speech Sciences, Faculty of Allied Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
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