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Kaplan-Neeman R, Greenbom T, Habiballah S, Henkin Y. Biomarkers of auditory cortical plasticity and development of binaural pathways in children with unilateral hearing loss using a hearing aid. Hear Res 2024; 451:109096. [PMID: 39116708 DOI: 10.1016/j.heares.2024.109096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 07/13/2024] [Accepted: 08/01/2024] [Indexed: 08/10/2024]
Abstract
Congenital or early-onset unilateral hearing loss (UHL) can disrupt the normal development of the auditory system. In extreme cases of UHL (i.e., single sided deafness), consistent cochlear implant use during sensitive periods resulted in cortical reorganization that partially reversed the detrimental effects of unilateral sensory deprivation. There is a gap in knowledge, however, regarding cortical plasticity i.e. the brain's capacity to adapt, reorganize, and develop binaural pathways in milder degrees of UHL rehabilitated by a hearing aid (HA). The current study was set to investigate early-stage cortical processing and electrophysiological manifestations of binaural processing by means of cortical auditory evoked potentials (CAEPs) to speech sounds, in children with moderate to severe-to-profound UHL using a HA. Fourteen children with UHL (CHwUHL), 6-14 years old consistently using a HA for 3.5 (±2.3) years participated in the study. CAEPs were elicited to the speech sounds /m/, /g/, and /t/ in three listening conditions: monaural [Normal hearing (NH), HA], and bilateral [BI (NH + HA)]. Results indicated age-appropriate CAEP morphology in the NH and BI listening conditions in all children. In the HA listening condition: (1) CAEPs showed similar morphology to that found in the NH listening condition, however, the mature morphology observed in older children in the NH listening condition was not evident; (2) P1 was elicited in all but two children with severe-to-profound hearing loss, to at least one speech stimuli, indicating effective audibility; (3) A significant mismatch in timing and synchrony between the NH and HA ear was found; (4) P1 was sensitive to the acoustic features of the eliciting stimulus and to the amplification characteristics of the HA. Finally, a cortical binaural interaction component (BIC) was derived in most children. In conclusion, the current study provides first-time evidence for cortical plasticity and partial reversal of the detrimental effects of moderate to severe-to-profound UHL rehabilitated by a HA. The derivation of a cortical biomarker of binaural processing implies that functional binaural pathways can develop when sufficient auditory input is provided to the affected ear. CAEPs may thus serve as a clinical tool for assessing, monitoring, and managing CHwUHL using a HA.
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Affiliation(s)
- Ricky Kaplan-Neeman
- Department of Communication Disorders, Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, Israel; Hearing, Speech, and Language Center, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | - Tzvia Greenbom
- Department of Communication Disorders, Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, Israel; Hearing, Speech, and Language Center, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | - Suhaill Habiballah
- Department of Communication Disorders, Haifa University, Haifa, Israel; Alango Technologies LTD, Tirat Carmel, Israel
| | - Yael Henkin
- Department of Communication Disorders, Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, Israel; Hearing, Speech, and Language Center, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel.
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Mai J, Gargiullo R, Zheng M, Esho V, Hussein OE, Pollay E, Bowe C, Williamson LM, McElroy AF, Saunders JL, Goolsby WN, Brooks KA, Rodgers CC. Sound-seeking before and after hearing loss in mice. Sci Rep 2024; 14:19181. [PMID: 39160202 PMCID: PMC11333604 DOI: 10.1038/s41598-024-67577-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 07/11/2024] [Indexed: 08/21/2024] Open
Abstract
How we move our bodies affects how we perceive sound. For instance, head movements help us to better localize the source of a sound and to compensate for asymmetric hearing loss. However, many auditory experiments are designed to restrict head and body movements. To study the role of movement in hearing, we developed a behavioral task called sound-seeking that rewarded freely moving mice for tracking down an ongoing sound source. Over the course of learning, mice more efficiently navigated to the sound. Next, we asked how sound-seeking was affected by hearing loss induced by surgical removal of the malleus from the middle ear. After bilateral hearing loss sound-seeking performance drastically declined and did not recover. In striking contrast, after unilateral hearing loss mice were only transiently impaired and then recovered their sound-seek ability over about a week. Throughout recovery, unilateral mice increasingly relied on a movement strategy of sequentially checking potential locations for the sound source. In contrast, the startle reflex (an innate auditory behavior) was preserved after unilateral hearing loss and abolished by bilateral hearing loss without recovery over time. In sum, mice compensate with body movement for permanent unilateral damage to the peripheral auditory system. Looking forward, this paradigm provides an opportunity to examine how movement enhances perception and enables resilient adaptation to sensory disorders.
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Affiliation(s)
- Jessica Mai
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Rowan Gargiullo
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Megan Zheng
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Valentina Esho
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Osama E Hussein
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Eliana Pollay
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Cedric Bowe
- Neuroscience Graduate Program, Emory University, Atlanta, GA, 30322, USA
| | - Lucas M Williamson
- Neuroscience Graduate Program, Emory University, Atlanta, GA, 30322, USA
| | - Abigail F McElroy
- Neuroscience Graduate Program, Emory University, Atlanta, GA, 30322, USA
| | - Jonny L Saunders
- Department of Neurology, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - William N Goolsby
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Kaitlyn A Brooks
- Department of Otolaryngology-Head and Neck Surgery, Emory University School of Medicine, Atlanta, GA, 30308, USA
| | - Chris C Rodgers
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, GA, 30322, USA.
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, 30322, USA.
- Department of Biomedical Engineering, Georgia Tech and Emory University School of Medicine, Atlanta, GA, 30322, USA.
- Department of Biology, Emory College of Arts and Sciences, Atlanta, GA, 30322, USA.
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Svobodová V, Profant O, Syka J, Tóthová D, Bureš Z. The Influence of Asymmetric Hearing Loss on Peripheral and Central Auditory Processing Abilities in Patients With Vestibular Schwannoma. Ear Hear 2024:00003446-990000000-00311. [PMID: 39004787 DOI: 10.1097/aud.0000000000001555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
OBJECTIVES Asymmetric or unilateral hearing loss (AHL) may cause irreversible changes in the processing of acoustic signals in the auditory system. We aim to provide a comprehensive view of the auditory processing abilities for subjects with acquired AHL, and to examine the influence of AHL on speech perception under difficult conditions, and on auditory temporal and intensity processing. DESIGN We examined peripheral and central auditory functions for 25 subjects with AHL resulting from vestibular schwannoma, and compared them to those from 24 normal-hearing controls that were matched with the AHL subjects in mean age and hearing thresholds in the healthy ear. Besides the basic hearing threshold assessment, the tests comprised the detection of tones and gaps in a continuous noise, comprehension of speech in babble noise, binaural interactions, difference limen of intensity, and detection of frequency modulation. For the AHL subjects, the selected tests were performed separately for the healthy and diseased ear. RESULTS We observed that binaural speech comprehension, gap detection, and frequency modulation detection abilities were dominated by the healthy ear and were comparable for both groups. The AHL subjects were less sensitive to interaural delays, however, they exhibited a higher sensitivity to sound level, as indicated by lower difference limen of intensity and a higher sensitivity to interaural intensity difference. Correlations between the individual test scores indicated that speech comprehension by the AHL subjects was associated with different auditory processing mechanisms than for the control subjects. CONCLUSIONS The data suggest that AHL influences both peripheral and central auditory processing abilities and that speech comprehension under difficult conditions relies on different mechanisms for the AHL subjects than for normal-hearing controls.
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Affiliation(s)
- Veronika Svobodová
- Department of Auditory Neuroscience, Institute of Experimental Medicine, Czech Academy of Sciences, Prague 4, Czech Republic
- Department of Otorhinolaryngology and Head and Neck Surgery, First Faculty of Medicine, University Hospital Motol, Charles University in Prague, Prague 5, Czech Republic
| | - Oliver Profant
- Department of Auditory Neuroscience, Institute of Experimental Medicine, Czech Academy of Sciences, Prague 4, Czech Republic
- Department of Otorhinolaryngology, Third Faculty of Medicine, University Hospital Královské Vinohrady, Charles University in Prague, Prague 10, Czech Republic
| | - Josef Syka
- Department of Auditory Neuroscience, Institute of Experimental Medicine, Czech Academy of Sciences, Prague 4, Czech Republic
- Department of Cognitive Systems and Neurosciences, Czech Institute of Informatics, Robotics and Cybernetics, Czech Technical University in Prague, Prague 6, Czech Republic
| | - Diana Tóthová
- Department of Auditory Neuroscience, Institute of Experimental Medicine, Czech Academy of Sciences, Prague 4, Czech Republic
- Department of Otorhinolaryngology and Head and Neck Surgery, First Faculty of Medicine, University Hospital Motol, Charles University in Prague, Prague 5, Czech Republic
| | - Zbyněk Bureš
- Department of Otorhinolaryngology, Third Faculty of Medicine, University Hospital Královské Vinohrady, Charles University in Prague, Prague 10, Czech Republic
- Department of Technical Studies, College of Polytechnics Jihlava, Jihlava, Czech Republic
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Song H, Kyong JS, Lee JH. Horizontal Sound Localization and Spatial Short-Term Memory Span in Hearing-Impaired Listeners and Listeners With Simulated Hearing Loss. J Audiol Otol 2024; 28:203-212. [PMID: 38946331 PMCID: PMC11273189 DOI: 10.7874/jao.2023.00206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 09/21/2023] [Accepted: 10/10/2023] [Indexed: 07/02/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Localization of a sound source in the horizontal plane depends on the listener's interaural comparison of arrival time and level. Hearing loss (HL) can reduce access to these binaural cues, possibly disrupting the localization and memory of spatial information. Thus, this study aimed to investigate the horizontal sound localization performance and the spatial short-term memory in listeners with actual and simulated HL. SUBJECTS AND METHODS Seventeen listeners with bilateral symmetric HL and 17 listeners with normal hearing (NH) participated in the study. The hearing thresholds of NH listeners were elevated by a spectrally shaped masking noise for the simulations of unilateral hearing loss (UHL) and bilateral hearing loss (BHL). The localization accuracy and errors as well as the spatial short-term memory span were measured in the free field using a set of 11 loudspeakers arrayed over a 150° arc. RESULTS The localization abilities and spatial short-term memory span did not significantly differ between actual BHL listeners and BHL-simulated NH listeners. Overall, the localization performance with the UHL simulation was approximately twofold worse than that with the BHL simulation, and the hearing asymmetry led to a detrimental effect on spatial memory. The mean localization score as a function of stimulus location in the UHL simulation was less than 30% even for the front (0° azimuth) stimuli and much worse on the side closer to the simulated ear. In the UHL simulation, the localization responses were biased toward the side of the intact ear even when sounds were coming from the front. CONCLUSIONS Hearing asymmetry induced by the UHL simulation substantially disrupted the localization performance and recall abilities of spatial positions encoded and stored in the memory, due to fewer chances to learn strategies to improve localization. The marked effect of hearing asymmetry on sound localization highlights the need for clinical assessments of spatial hearing in addition to conventional hearing tests.
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Affiliation(s)
- Hookang Song
- Department of Audiology and Speech-Language Pathology, Hallym University of Graduate Studies, Seoul, Korea
| | - Jeong-Sug Kyong
- Department of Audiology and Speech-Language Pathology, Hallym University of Graduate Studies, Seoul, Korea
- HUGS Center for Hearing and Speech Research, Seoul, Korea
- Division of Research Support, Konkuk University Medical Center, Seoul, Korea
| | - Jae Hee Lee
- Department of Audiology and Speech-Language Pathology, Hallym University of Graduate Studies, Seoul, Korea
- HUGS Center for Hearing and Speech Research, Seoul, Korea
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Takaki K, Kashio A, Nozaki E, Kanai T, Kamogashira T, Saze F, Uranaka T, Urata S, Koyama H, Kawahara Y, Yamasoba T. A Randomized Crossover Study in Single-Sided Deafness Comparing a Cartilage Conduction CROS System and an Air-Conduction CROS System. Otol Neurotol 2024; 45:635-642. [PMID: 38769110 DOI: 10.1097/mao.0000000000004199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
OBJECTIVE To investigate if cartilage conduction (CC) rerouting devices are noninferior to air-conduction (AC) rerouting devices for single-sided deafness (SSD) patients by measuring objective and subjective performance using speech-in-noise tests that resemble a realistic hearing environment, sound localization tests, and standardized questionnaires. STUDY DESIGN Prospective, single-subject randomized, crossover study. SETTING Anechoic room inside a university. PATIENTS Nine adults between 21 and 58 years of age with severe or profound unilateral sensorineural hearing loss. INTERVENTIONS Patients' baseline hearing was assessed; they then used both the cartilage conduction contralateral routing of signals device (CC-CROS) and an air-conduction CROS hearing aid (AC-CROS). Patients wore each device for 2 weeks in a randomly assigned order. MAIN OUTCOME MEASURES Three main outcome measures were 1) speech-in-noise tests, measuring speech reception thresholds; 2) proportion of correct sound localization responses; and 3) scores on the questionnaires, "Abbreviated Profile of Hearing Aid Benefit" (APHAB) and "Speech, Spatial, and Qualities of Hearing Scale" with 12 questions (SSQ-12). RESULTS Speech reception threshold improved significantly when noise was ambient, and speech was presented from the front or the poor-ear side with both CC-CROS and AC-CROS. When speech was delivered from the better-ear side, AC-CROS significantly improved performance, whereas CC-CROS had no significant effect. Both devices mainly worsened sound localization, whereas the APHAB and SSQ-12 scores showed benefits. CONCLUSION CC-CROS has noninferior hearing-in-noise performance except when the speech was presented to the better ear under ambient noise. Subjective measures showed that the patients realized the effectiveness of both devices.
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Affiliation(s)
- Ken Takaki
- Department of Electrical Engineering and Information Systems, Graduate School of Engineering
| | - Akinori Kashio
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo
| | - Etsushi Nozaki
- Department of Electrical Engineering and Information Systems, Graduate School of Engineering
| | - Tomomi Kanai
- Department of Electrical Engineering and Information Systems, Graduate School of Engineering
| | - Teru Kamogashira
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo
| | - Fumikazu Saze
- Department of Electrical Engineering and Computer Science, Graduate School of System Design, Tokyo Metropolitan University, Tokyo, Japan
| | - Tsukasa Uranaka
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo
| | - Shinji Urata
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo
| | - Hajime Koyama
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo
| | - Yoshihiro Kawahara
- Department of Electrical Engineering and Information Systems, Graduate School of Engineering
| | - Tatsuya Yamasoba
- Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo
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Wang X, Nie S, Wen Y, Zhao Z, Li J, Wang N, Zhang J. Age-related differences in auditory spatial processing revealed by acoustic change complex. Front Hum Neurosci 2024; 18:1342931. [PMID: 38681742 PMCID: PMC11045960 DOI: 10.3389/fnhum.2024.1342931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 04/01/2024] [Indexed: 05/01/2024] Open
Abstract
Objectives The auditory spatial processing abilities mature throughout childhood and degenerate in older adults. This study aimed to compare the differences in onset cortical auditory evoked potentials (CAEPs) and location-evoked acoustic change complex (ACC) responses among children, adults, and the elderly and to investigate the impact of aging and development on ACC responses. Design One hundred and seventeen people were recruited in the study, including 57 typically-developed children, 30 adults, and 30 elderlies. The onset-CAEP evoked by white noise and ACC by sequential changes in azimuths were recorded. Latencies and amplitudes as a function of azimuths were analyzed using the analysis of variance, Pearson correlation analysis, and multiple linear regression model. Results The ACC N1'-P2' amplitudes and latencies in adults, P1'-N1' amplitudes in children, and N1' amplitudes and latencies in the elderly were correlated with angles of shifts. The N1'-P2' and P2' amplitudes decreased in the elderly compared to adults. In Children, the ACC P1'-N1' responses gradually differentiated into the P1'-N1'-P2' complex. Multiple regression analysis showed that N1'-P2' amplitudes (R2 = 0.33) and P2' latencies (R2 = 0.18) were the two most variable predictors in adults, while in the elderly, N1' latencies (R2 = 0.26) explained most variances. Although the amplitudes of onset-CAEP differed at some angles, it could not predict angle changes as effectively as ACC responses. Conclusion The location-evoked ACC responses varied among children, adults, and the elderly. The N1'-P2' amplitudes and P2' latencies in adults and N1' latencies in the elderly explained most variances of changes in spatial position. The differentiation of the N1' waveform was observed in children. Further research should be conducted across all age groups, along with behavioral assessments, to confirm the relationship between aging and immaturity in objective ACC responses and poorer subjective spatial performance. Significance ACCs evoked by location changes were assessed in adults, children, and the elderly to explore the impact of aging and development on these differences.
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Affiliation(s)
| | | | | | | | | | - Ningyu Wang
- Department of Otolaryngology-Head and Neck Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Juan Zhang
- Department of Otolaryngology-Head and Neck Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
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Stancu M, Wohlfrom H, Heß M, Grothe B, Leibold C, Kopp-Scheinpflug C. Ambient sound stimulation tunes axonal conduction velocity by regulating radial growth of myelin on an individual, axon-by-axon basis. Proc Natl Acad Sci U S A 2024; 121:e2316439121. [PMID: 38442165 PMCID: PMC10945791 DOI: 10.1073/pnas.2316439121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 01/31/2024] [Indexed: 03/07/2024] Open
Abstract
Adaptive myelination is the emerging concept of tuning axonal conduction velocity to the activity within specific neural circuits over time. Sound processing circuits exhibit structural and functional specifications to process signals with microsecond precision: a time scale that is amenable to adjustment in length and thickness of myelin. Increasing activity of auditory axons by introducing sound-evoked responses during postnatal development enhances myelin thickness, while sensory deprivation prevents such radial growth during development. When deprivation occurs during adulthood, myelin thickness was reduced. However, it is unclear whether sensory stimulation adjusts myelination in a global fashion (whole fiber bundles) or whether such adaptation occurs at the level of individual fibers. Using temporary monaural deprivation in mice provided an internal control for a) differentially tracing structural changes in active and deprived fibers and b) for monitoring neural activity in response to acoustic stimulation of the control and the deprived ear within the same animal. The data show that sound-evoked activity increased the number of myelin layers around individual active axons, even when located in mixed bundles of active and deprived fibers. Thicker myelination correlated with faster axonal conduction velocity and caused shorter auditory brainstem response wave VI-I delays, providing a physiologically relevant readout. The lack of global compensation emphasizes the importance of balanced sensory experience in both ears throughout the lifespan of an individual.
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Affiliation(s)
- Mihai Stancu
- Division of Neurobiology, Faculty of Biology, Ludwig-Maximilians-University Munich, Planegg-Martinsried82152, Germany
- Munich Cluster for Systems Neurology, Munich81377, Germany
- Graduate School of Systemic Neurosciences, Planegg-Martinsried82152, Germany
| | - Hilde Wohlfrom
- Division of Neurobiology, Faculty of Biology, Ludwig-Maximilians-University Munich, Planegg-Martinsried82152, Germany
| | - Martin Heß
- Division of Neurobiology, Faculty of Biology, Ludwig-Maximilians-University Munich, Planegg-Martinsried82152, Germany
| | - Benedikt Grothe
- Division of Neurobiology, Faculty of Biology, Ludwig-Maximilians-University Munich, Planegg-Martinsried82152, Germany
- Munich Cluster for Systems Neurology, Munich81377, Germany
| | - Christian Leibold
- Division of Neurobiology, Faculty of Biology, Ludwig-Maximilians-University Munich, Planegg-Martinsried82152, Germany
- Faculty of Biology, Bernstein Center Freiburg, BrainLinks-BrainTools, University of Freiburg, Freiburg im Breisgau79110, Germany
| | - Conny Kopp-Scheinpflug
- Division of Neurobiology, Faculty of Biology, Ludwig-Maximilians-University Munich, Planegg-Martinsried82152, Germany
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Bao X, Ding Y, Wang Y, Liu X, Xu B, Guo Y. A Comparative Study of Hearing Handicap Inventory and Pure-Tone Audiometry Scores in Unilateral Hearing Impaired Patients. EAR, NOSE & THROAT JOURNAL 2024:1455613241235501. [PMID: 38426445 DOI: 10.1177/01455613241235501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024] Open
Abstract
Objective: To investigate the consistency between the hearing handicap inventory (HHI) and pure-tone audiometry (PTA) scores in assessing hearing status to provide valuable insights for clinical application. Methods: Retrospective analysis of clinical data and the HHI reporting status of 6540 patients admitted between April 2020 and July 2022 for self-reported unilateral hearing loss who met the study inclusion and exclusion criteria. The kappa coefficient was used to evaluate the consistency of HHI and PTA in assessing the hearing status of the participants. Results: The PTA results showed that among the 6540 participants, 3895 exhibited normal hearing, 1434 showed mild hearing loss, 809 presented with moderate hearing loss, and 402 showed severe hearing loss. The mean hearing thresholds from 0.5 to 4 kHz in healthy ears ranged from 3.65 to 18.45 dB HL, with a mean of 10.83 ± 5.29 dB HL; in ears affected by hearing loss, this ranged from 35 to 125 dB HL, with a mean of 69.63 ± 28.45 dB HL. The HHI scores showed that 4820 people had normal hearing, 1245 had mild-to-moderate hearing loss, and 475 had severe hearing loss. The kappa coefficients of normal, mild-to-moderate, and severe hearing loss were 0.312, 0.223, and 0.716, respectively (P = .001). The consistency between the 2 groups was particularly significant in the assessment of severe hearing loss. Using the PTA results as a benchmark, the sensitivity, specificity, positive predictive value, and negative predictive value of the HHI were found to be 73.08%, 87.83%, 95.60%, and 70.98%, respectively. Conclusion: The HHI and PTA results were consistent in the assessment of hearing status, particularly in the assessment of severe hearing loss, and the level of consistency between the 2 methods was high. The combined use of these tools can facilitate a comprehensive assessment of the auditory status of patients with hearing loss.
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Affiliation(s)
- XiaoLin Bao
- Department of Otolaryngology-Head and Neck Surgery, Lanzhou University Second Hospital, Lanzhou, China
- Department of Otorhinolaryngology-Head and Neck, Tianjin Economic and Technological Development Area Hospital of Tianjin University, Tianjin, China
| | - YiLi Ding
- Department of Otorhinolaryngology-Head and Neck, Tianjin Economic and Technological Development Area Hospital of Tianjin University, Tianjin, China
| | - Yuan Wang
- Department of Otorhinolaryngology-Head and Neck, Tianjin Economic and Technological Development Area Hospital of Tianjin University, Tianjin, China
| | - XiaoWen Liu
- Department of Otolaryngology-Head and Neck Surgery, Lanzhou University Second Hospital, Lanzhou, China
| | - BaiCheng Xu
- Department of Otolaryngology-Head and Neck Surgery, Lanzhou University Second Hospital, Lanzhou, China
| | - YuFen Guo
- Department of Otolaryngology-Head and Neck Surgery, Lanzhou University Second Hospital, Lanzhou, China
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Mai J, Gargiullo R, Zheng M, Esho V, Hussein OE, Pollay E, Bowe C, Williamson LM, McElroy AF, Goolsby WN, Brooks KA, Rodgers CC. Sound-seeking before and after hearing loss in mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.08.574475. [PMID: 38260458 PMCID: PMC10802496 DOI: 10.1101/2024.01.08.574475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
How we move our bodies affects how we perceive sound. For instance, we can explore an environment to seek out the source of a sound and we can use head movements to compensate for hearing loss. How we do this is not well understood because many auditory experiments are designed to limit head and body movements. To study the role of movement in hearing, we developed a behavioral task called sound-seeking that rewarded mice for tracking down an ongoing sound source. Over the course of learning, mice more efficiently navigated to the sound. We then asked how auditory behavior was affected by hearing loss induced by surgical removal of the malleus from the middle ear. An innate behavior, the auditory startle response, was abolished by bilateral hearing loss and unaffected by unilateral hearing loss. Similarly, performance on the sound-seeking task drastically declined after bilateral hearing loss and did not recover. In striking contrast, mice with unilateral hearing loss were only transiently impaired on sound-seeking; over a recovery period of about a week, they regained high levels of performance, increasingly reliant on a different spatial sampling strategy. Thus, even in the face of permanent unilateral damage to the peripheral auditory system, mice recover their ability to perform a naturalistic sound-seeking task. This paradigm provides an opportunity to examine how body movement enables better hearing and resilient adaptation to sensory deprivation.
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Affiliation(s)
- Jessica Mai
- Department of Neurosurgery, Emory University School of Medicine, Atlanta GA 30322
| | - Rowan Gargiullo
- Department of Neurosurgery, Emory University School of Medicine, Atlanta GA 30322
| | - Megan Zheng
- Department of Neurosurgery, Emory University School of Medicine, Atlanta GA 30322
| | - Valentina Esho
- Department of Neurosurgery, Emory University School of Medicine, Atlanta GA 30322
| | - Osama E Hussein
- Department of Neurosurgery, Emory University School of Medicine, Atlanta GA 30322
| | - Eliana Pollay
- Department of Neurosurgery, Emory University School of Medicine, Atlanta GA 30322
| | - Cedric Bowe
- Neuroscience Graduate Program, Emory University, Atlanta GA 30322
| | | | | | - William N Goolsby
- Department of Cell Biology, Emory University School of Medicine, Atlanta GA 30322
| | - Kaitlyn A Brooks
- Department of Otolaryngology - Head and Neck Surgery, Emory University School of Medicine, Atlanta GA 30308
| | - Chris C Rodgers
- Department of Neurosurgery, Emory University School of Medicine, Atlanta GA 30322
- Department of Cell Biology, Emory University School of Medicine, Atlanta GA 30322
- Department of Biomedical Engineering, Georgia Tech and Emory University School of Medicine, Atlanta GA 30322
- Department of Biology, Emory College of Arts and Sciences, Atlanta GA 30322
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10
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Carr CE, Wang T, Kraemer I, Capshaw G, Ashida G, Köppl C, Kempter R, Kuokkanen PT. Experience-Dependent Plasticity in Nucleus Laminaris of the Barn Owl. J Neurosci 2024; 44:e0940232023. [PMID: 37989591 PMCID: PMC10851688 DOI: 10.1523/jneurosci.0940-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 10/12/2023] [Accepted: 11/01/2023] [Indexed: 11/23/2023] Open
Abstract
Interaural time differences (ITDs) are a major cue for sound localization and change with increasing head size. Since the barn owl's head width more than doubles in the month after hatching, we hypothesized that the development of their ITD detection circuit might be modified by experience. To test this, we raised owls with unilateral ear inserts that delayed and attenuated the acoustic signal, and then measured the ITD representation in the brainstem nucleus laminaris (NL) when they were adults. The ITD circuit is composed of delay line inputs to coincidence detectors, and we predicted that plastic changes would lead to shorter delays in the axons from the manipulated ear, and complementary shifts in ITD representation on the two sides. In owls that received ear inserts starting around P14, the maps of ITD shifted in the predicted direction, but only on the ipsilateral side, and only in those tonotopic regions that had not experienced auditory stimulation prior to insertion. The contralateral map did not change. Thus, experience-dependent plasticity of the ITD circuit occurs in NL, and our data suggest that ipsilateral and contralateral delays are independently regulated. As a result, altered auditory input during development leads to long-lasting changes in the representation of ITD.Significance Statement The early life of barn owls is marked by increasing sensitivity to sound, and by increasing ITDs. Their prolonged post-hatch development allowed us to examine the role of altered auditory experience in the development of ITD detection circuits. We raised owls with a unilateral ear insert and found that their maps of ITD were altered by experience, but only in those tonotopic regions ipsilateral to the occluded ear that had not experienced auditory stimulation prior to insertion. This experience-induced plasticity allows the sound localization circuits to be customized to individual characteristics, such as the size of the head, and potentially to compensate for imbalanced hearing sensitivities between the left and right ears.
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Affiliation(s)
- Catherine E Carr
- Department of Biology, University of Maryland College Park, College Park, MD 20742
| | - Tiffany Wang
- Department of Biology, University of Maryland College Park, College Park, MD 20742
| | - Ira Kraemer
- Department of Biology, University of Maryland College Park, College Park, MD 20742
| | - Grace Capshaw
- Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD 21218
| | - Go Ashida
- Department of Neuroscience, School of Medicine and Health Sciences, Research Center for Neurosensory Sciences and Cluster of Excellence "Hearing4all" Carl von Ossietzky University, 26129 Oldenburg, Germany
| | - Christine Köppl
- Department of Neuroscience, School of Medicine and Health Sciences, Research Center for Neurosensory Sciences and Cluster of Excellence "Hearing4all" Carl von Ossietzky University, 26129 Oldenburg, Germany
| | - Richard Kempter
- Institute for Theoretical Biology, Department of Biology, Humboldt-Universität zu Berlin, 10115 Berlin, Germany
- Bernstein Center for Computational Neuroscience Berlin, 10115 Berlin, Germany
- Einstein Center for Neurosciences Berlin, 10117 Berlin, Germany
| | - Paula T Kuokkanen
- Department of Biology, University of Maryland College Park, College Park, MD 20742
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11
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Alemu RZ, Papsin BC, Harrison RV, Blakeman A, Gordon KA. Head and Eye Movements Reveal Compensatory Strategies for Acute Binaural Deficits During Sound Localization. Trends Hear 2024; 28:23312165231217910. [PMID: 38297817 PMCID: PMC10832417 DOI: 10.1177/23312165231217910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 10/17/2023] [Accepted: 11/14/2023] [Indexed: 02/02/2024] Open
Abstract
The present study aimed to define use of head and eye movements during sound localization in children and adults to: (1) assess effects of stationary versus moving sound and (2) define effects of binaural cues degraded through acute monaural ear plugging. Thirty-three youth (MAge = 12.9 years) and seventeen adults (MAge = 24.6 years) with typical hearing were recruited and asked to localize white noise anywhere within a horizontal arc from -60° (left) to +60° (right) azimuth in two conditions (typical binaural and right ear plugged). In each trial, sound was presented at an initial stationary position (L1) and then while moving at ∼4°/s until reaching a second position (L2). Sound moved in five conditions (±40°, ±20°, or 0°). Participants adjusted a laser pointer to indicate L1 and L2 positions. Unrestricted head and eye movements were collected with gyroscopic sensors on the head and eye-tracking glasses, respectively. Results confirmed that accurate sound localization of both stationary and moving sound is disrupted by acute monaural ear plugging. Eye movements preceded head movements for sound localization in normal binaural listening and head movements were larger than eye movements during monaural plugging. Head movements favored the unplugged left ear when stationary sounds were presented in the right hemifield and during sound motion in both hemifields regardless of the movement direction. Disrupted binaural cues have greater effects on localization of moving than stationary sound. Head movements reveal preferential use of the better-hearing ear and relatively stable eye positions likely reflect normal vestibular-ocular reflexes.
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Affiliation(s)
- Robel Z. Alemu
- Archie's Cochlear Implant Laboratory, The Hospital for Sick Children, Toronto, ON, Canada
- Institute of Medical Science, The University of Toronto, Toronto, ON, Canada
| | - Blake C. Papsin
- Archie's Cochlear Implant Laboratory, The Hospital for Sick Children, Toronto, ON, Canada
- Institute of Medical Science, The University of Toronto, Toronto, ON, Canada
- Department of Otolaryngology-Head & Neck Surgery, University of Toronto, Toronto, ON, Canada
- Department of Otolaryngology, The Hospital for Sick Children, Toronto, ON, Canada
- Program in Neuroscience and Mental Health, Research Institute, Toronto, ON, Canada
| | - Robert V. Harrison
- Institute of Medical Science, The University of Toronto, Toronto, ON, Canada
- Department of Otolaryngology-Head & Neck Surgery, University of Toronto, Toronto, ON, Canada
- Program in Neuroscience and Mental Health, Research Institute, Toronto, ON, Canada
| | - Al Blakeman
- Archie's Cochlear Implant Laboratory, The Hospital for Sick Children, Toronto, ON, Canada
| | - Karen A. Gordon
- Archie's Cochlear Implant Laboratory, The Hospital for Sick Children, Toronto, ON, Canada
- Institute of Medical Science, The University of Toronto, Toronto, ON, Canada
- Department of Otolaryngology-Head & Neck Surgery, University of Toronto, Toronto, ON, Canada
- Program in Neuroscience and Mental Health, Research Institute, Toronto, ON, Canada
- Department of Communication Disorders, The Hospital for Sick Children, Toronto, ON, Canada
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12
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Anderson SR, Burg E, Suveg L, Litovsky RY. Review of Binaural Processing With Asymmetrical Hearing Outcomes in Patients With Bilateral Cochlear Implants. Trends Hear 2024; 28:23312165241229880. [PMID: 38545645 PMCID: PMC10976506 DOI: 10.1177/23312165241229880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 01/11/2024] [Accepted: 01/16/2024] [Indexed: 04/01/2024] Open
Abstract
Bilateral cochlear implants (BiCIs) result in several benefits, including improvements in speech understanding in noise and sound source localization. However, the benefit bilateral implants provide among recipients varies considerably across individuals. Here we consider one of the reasons for this variability: difference in hearing function between the two ears, that is, interaural asymmetry. Thus far, investigations of interaural asymmetry have been highly specialized within various research areas. The goal of this review is to integrate these studies in one place, motivating future research in the area of interaural asymmetry. We first consider bottom-up processing, where binaural cues are represented using excitation-inhibition of signals from the left ear and right ear, varying with the location of the sound in space, and represented by the lateral superior olive in the auditory brainstem. We then consider top-down processing via predictive coding, which assumes that perception stems from expectations based on context and prior sensory experience, represented by cascading series of cortical circuits. An internal, perceptual model is maintained and updated in light of incoming sensory input. Together, we hope that this amalgamation of physiological, behavioral, and modeling studies will help bridge gaps in the field of binaural hearing and promote a clearer understanding of the implications of interaural asymmetry for future research on optimal patient interventions.
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Affiliation(s)
- Sean R. Anderson
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
- Department of Physiology and Biophysics, University of Colorado Anschutz Medical School, Aurora, CO, USA
| | - Emily Burg
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
- Department of Hearing and Speech Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Lukas Suveg
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Ruth Y. Litovsky
- Waisman Center, University of Wisconsin-Madison, Madison, WI, USA
- Department of Communication Sciences and Disorders, University of Wisconsin-Madison, Madison, WI, USA
- Department of Surgery, Division of Otolaryngology, University of Wisconsin-Madison, Madison, WI, USA
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13
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Tetard S, Guigou C, Sonnet CE, Al Burshaid D, Charlery-Adèle A, Bozorg Grayeli A. Free-Field Hearing Test in Noise with Free Head Rotation for Evaluation of Monaural Hearing. J Clin Med 2023; 12:7143. [PMID: 38002755 PMCID: PMC10672306 DOI: 10.3390/jcm12227143] [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: 09/28/2023] [Revised: 11/06/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
There is a discrepancy between the hearing test results in patients with single-sided deafness (SSD) and their reported outcome measures. This is probably due to the presence of two elements in everyday situations: noise and head movements. We developed a stereo-audiometric test in noise with free head movements to evaluate movements and auditory performance in monaural and binaural conditions in normal hearing volunteers with one occluded ear. Tests were performed in the binaural condition (BIN), with the left ear (LEO) or the right ear occluded (REO). The signal was emitted by one of the seven speakers, placed every 30° in a semicircle, and the noise (cocktail party) by all speakers. Subjects turned their head freely to obtain the most comfortable listening position, then repeated 10 sentences in this position. In monaural conditions, the sums of rotations (head rotations for an optimal hearing position in degrees, random signal azimuth, 1 to 15 signal ad lib signal presentations) were higher (LEO 255 ± 212°, REO 308 ± 208° versus BIN 74 ± 76, p < 0.001, ANOVA) than those in the BIN condition and the discrimination score (out of 10) was lower than that in the BIN condition (LEO 5 ± 1, REO 7 ± 1 versus BIN 8 ± 1, respectively p < 0.001 and p < 0.05 ANOVA). In the monaural condition, total rotation and discrimination in noise were negatively correlated with difficulty (Pearson r = -0.68, p < 0.01 and -0.51, p < 0.05, respectively). Subjects' behaviors were different in optimizing their hearing in noise via head rotation. The evaluation of head movements seems to be a significant parameter in predicting the difficulty of monaural hearing in noisy environments.
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Affiliation(s)
- Stanley Tetard
- Department of Otolaryngology-Head and Neck Surgery, Dijon University Hospital, 21000 Dijon, France
| | - Caroline Guigou
- Department of Otolaryngology-Head and Neck Surgery, Dijon University Hospital, 21000 Dijon, France
- ImViA, Laboratory of Imagery and Artificial Vision (EA 7535), Burgundy University, 21078 Dijon, France
| | - Charles-Edouard Sonnet
- Department of Otolaryngology-Head and Neck Surgery, Dijon University Hospital, 21000 Dijon, France
- Amplifon Hearing Aid Center, 21000 Dijon, France
| | - Dhari Al Burshaid
- Department of Otolaryngology-Head and Neck Surgery, Dijon University Hospital, 21000 Dijon, France
| | - Ambre Charlery-Adèle
- Department of Otolaryngology-Head and Neck Surgery, Dijon University Hospital, 21000 Dijon, France
| | - Alexis Bozorg Grayeli
- Department of Otolaryngology-Head and Neck Surgery, Dijon University Hospital, 21000 Dijon, France
- ImViA, Laboratory of Imagery and Artificial Vision (EA 7535), Burgundy University, 21078 Dijon, France
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14
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Park LR, Dillon MT, Buss E, Brown KD. Two-Year Outcomes of Cochlear Implant Use for Children With Unilateral Hearing Loss: Benefits and Comparison to Children With Normal Hearing. Ear Hear 2023; 44:955-968. [PMID: 36879386 PMCID: PMC10426784 DOI: 10.1097/aud.0000000000001353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 01/24/2023] [Indexed: 03/08/2023]
Abstract
OBJECTIVES Children with severe-to-profound unilateral hearing loss, including cases of single-sided deafness (SSD), lack access to binaural cues that support spatial hearing, such as recognizing speech in complex multisource environments and sound source localization. Listening in a monaural condition negatively impacts communication, learning, and quality of life for children with SSD. Cochlear implant (CI) use may restore binaural hearing abilities and improve outcomes as compared to alternative treatments or no treatment. This study investigated performance over 24 months of CI use in young children with SSD as compared to the better hearing ear alone and to children with bilateral normal hearing (NH). DESIGN Eighteen children with SSD who received a CI between the ages of 3.5 and 6.5 years as part of a prospective clinical trial completed assessments of word recognition in quiet, masked sentence recognition, and sound source localization at regular intervals out to 24-month postactivation. Eighteen peers with bilateral NH, matched by age at the group level, completed the same test battery. Performance at 24-month postactivation for the SSD group was compared to the performance of the NH group. RESULTS Children with SSD have significantly poorer speech recognition in quiet, masked sentence recognition, and localization both with and without the use of the CI than their peers with NH. The SSD group experienced significant benefits with the CI+NH versus the NH ear alone on measures of isolated word recognition, masked sentence recognition, and localization. These benefits were realized within the first 3 months of use and were maintained through the 24-month postactivation interval. CONCLUSIONS Young children with SSD who use a CI experience significant isolated word recognition and bilateral spatial hearing benefits, although their performance remains poorer than their peers with NH.
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Affiliation(s)
- Lisa R. Park
- Department of Otolaryngology/Head and Neck Surgery, University of North Carolina at Chapel Hill, North Carolina, USA
| | - Margaret T. Dillon
- Department of Otolaryngology/Head and Neck Surgery, University of North Carolina at Chapel Hill, North Carolina, USA
| | - Emily Buss
- Department of Otolaryngology/Head and Neck Surgery, University of North Carolina at Chapel Hill, North Carolina, USA
| | - Kevin D. Brown
- Department of Otolaryngology/Head and Neck Surgery, University of North Carolina at Chapel Hill, North Carolina, USA
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15
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Shim L, Lee J, Han JH, Jeon H, Hong SK, Lee HJ. Feasibility of Virtual Reality-Based Auditory Localization Training With Binaurally Recorded Auditory Stimuli for Patients With Single-Sided Deafness. Clin Exp Otorhinolaryngol 2023; 16:217-224. [PMID: 37080730 PMCID: PMC10471910 DOI: 10.21053/ceo.2023.00206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/08/2023] [Accepted: 04/15/2023] [Indexed: 04/22/2023] Open
Abstract
OBJECTIVES To train participants to localize sound using virtual reality (VR) technology, appropriate auditory stimuli that contain accurate spatial cues are essential. The generic head-related transfer function that grounds the programmed spatial audio in VR does not reflect individual variation in monaural spatial cues, which is critical for auditory spatial perception in patients with single-sided deafness (SSD). As binaural difference cues are unavailable, auditory spatial perception is a typical problem in the SSD population and warrants intervention. This study assessed the applicability of binaurally recorded auditory stimuli in VR-based training for sound localization in SSD patients. METHODS Sixteen subjects with SSD and 38 normal-hearing (NH) controls underwent VR-based training for sound localization and were assessed 3 weeks after completing training. The VR program incorporated prerecorded auditory stimuli created individually in the SSD group and over an anthropometric model in the NH group. RESULTS Sound localization performance revealed significant improvements in both groups after training, with retained benefits lasting for an additional 3 weeks. Subjective improvements in spatial hearing were confirmed in the SSD group. CONCLUSION By examining individuals with SSD and NH, VR-based training for sound localization that used binaurally recorded stimuli, measured individually, was found to be effective and beneficial. Furthermore, VR-based training does not require sophisticated instruments or setups. These. RESULTS suggest that this technique represents a new therapeutic treatment for impaired sound localization.
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Affiliation(s)
- Leeseul Shim
- Laboratory of Brain and Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, Korea
- Ear and Interaction Center, Doheun Institute for Digital Innovation in Medicine (D.I.D.I.M.), Hallym University Medical Center, Anyang, Korea
| | - Jihyun Lee
- Laboratory of Brain and Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, Korea
- Ear and Interaction Center, Doheun Institute for Digital Innovation in Medicine (D.I.D.I.M.), Hallym University Medical Center, Anyang, Korea
| | - Ji-Hye Han
- Laboratory of Brain and Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, Korea
- Ear and Interaction Center, Doheun Institute for Digital Innovation in Medicine (D.I.D.I.M.), Hallym University Medical Center, Anyang, Korea
| | - Hanjae Jeon
- Laboratory of Brain and Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, Korea
| | - Sung-Kwang Hong
- Laboratory of Brain and Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, Korea
- Department of Otorhinolaryngology-Head and Neck Surgery, Hallym University College of Medicine, Chuncheon, Korea
| | - Hyo-Jeong Lee
- Laboratory of Brain and Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, Korea
- Ear and Interaction Center, Doheun Institute for Digital Innovation in Medicine (D.I.D.I.M.), Hallym University Medical Center, Anyang, Korea
- Department of Otorhinolaryngology-Head and Neck Surgery, Hallym University College of Medicine, Chuncheon, Korea
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16
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Patel R, Hoare DJ, Willis KR, Tabraiz S, Bateman PK, Thornton SK. Characterisation of the treatment provided for children with unilateral hearing loss. Front Pediatr 2023; 11:1197713. [PMID: 37559951 PMCID: PMC10407268 DOI: 10.3389/fped.2023.1197713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/16/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND Children with permanent unilateral hearing loss (UHL) are an understudied population, with limited data to inform the guidelines on clinical management. There is a funding gap in healthcare provision for the children with UHL in the United Kingdom, where genetic screening, support services, and devices are not consistently provided or fully funded in all areas. They are a disparate population with regard to aetiology and their degree of hearing loss, and hence their device choice and use. Despite having one "good ear", some children with UHL can have similar outcomes, socially, behaviourally, and academically, to children with bilateral hearing loss, highlighting the importance of understanding this population. In this longitudinal cohort study, we aimed to characterise the management of the children with UHL and the gaps in the support services that are provided for the children in Nottingham, United Kingdom. METHODS A cohort study was conducted collecting longitudinal data over 17 years (2002-2019) for 63 children with permanent congenital confirmed UHL in a large tertiary regional referral centre for hearing loss in Nottingham, United Kingdom. The cases of UHL include permanent congenital, conductive, mixed, or sensorineural hearing loss, and the degree of hearing loss ranges from mild to profound. The data were taken from their diagnostic auditory brainstem responses and their two most recent hearing assessments. Descriptors were recorded of the devices trialled and used and the diagnoses including aetiology of UHL, age of first fit, degree of hearing loss, when and which type of device was used, why a device was not used, the support services provided, concerns raised, and who raised them. RESULTS Most children (45/63; 71%) trialled a device, and the remaining 18 children had no device trial on record. Most children (20/45; 44%) trialled a bone-conduction device, followed by contralateral routing of signal aid (15/45; 33%) and conventional hearing aids (9/45; 20%). Most children (36/45; 80%) who had a device indicated that they wore their device "all day" or every day in school. Few children (8/45; 18%) reported that they wore their device rarely, and the reasons for this included bullying (3/8), feedback from the device (2/8), and discomfort from the device (2/8). Only one child reported that the device was not helping with their hearing. The age that the children were first fitted with their hearing device varied a median of 2.5 years for hearing aids and bone-conduction devices and 7 years for a contralateral routing of signal aid. The length of time that the children had the device also varied widely (median of 26 months, range 3-135 months); the children had their bone-conduction hearing aid for the longest period of time (median of 32.5 months). There was a significant trend where more recent device fittings were happening for children at a younger age. Fifty-one children were referred by the paediatric audiologist to a support service, 72.5% (37/51) were subsequently followed up by the referred service with no issue, whilst the remaining 27.5% (14/51) encountered an issue leading to an unsuccessful provision of support. Overall, most children (65%, 41/63) had no reported concerns, and 28.5% (18/63) of the children went on to have a documented concern at some point during their audiological care: five with hearing aid difficulties, five with speech issues, four with no improvement in hearing, three facing self-image or bullying issues, and one case of a child struggling to interact socially with friends. Three of these children had not trialled a device. We documented every concern reported from the parents, clinicians, teachers of the deaf, and from the children themselves. Where concerns were raised, more than half (58.6%, 10/18) were by schools and teachers, the remaining four concerns were raised by the family, and further four concerns were raised by the children themselves. CONCLUSION To discover what management will most benefit which children with permanent UHL, we first must characterise their treatment, their concerns, and the support services available for them. Despite the children with UHL being a highly disparate population-in terms of their aetiology, their device use, the degree of hearing loss, and the age at which they trial a device-the majority report they use their device mostly in school. In lieu of available data and in consideration of the devices that are available to them, it could be useful to support families and clinicians in understanding the devices which are most used and where they are used. Considering the reasons for cessation of regular device use counselling and support services would be vital to support the children with UHL.
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Affiliation(s)
- Roshni Patel
- Hearing Sciences, Mental Health and Clinical Neurosciences, School of Medicine, The University of Nottingham, Nottingham, United Kingdom
| | - Derek J. Hoare
- Hearing Sciences, Mental Health and Clinical Neurosciences, School of Medicine, The University of Nottingham, Nottingham, United Kingdom
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | - Karen R. Willis
- Children’s Audiology, Ropewalk House, Nottingham, United Kingdom
| | - Shammas Tabraiz
- Hearing Sciences, Mental Health and Clinical Neurosciences, School of Medicine, The University of Nottingham, Nottingham, United Kingdom
| | - Paul K. Bateman
- Hearing Sciences, Mental Health and Clinical Neurosciences, School of Medicine, The University of Nottingham, Nottingham, United Kingdom
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | - Sally K. Thornton
- Hearing Sciences, Mental Health and Clinical Neurosciences, School of Medicine, The University of Nottingham, Nottingham, United Kingdom
- NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
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17
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Thompson NJ, Brown KD, Buss E, Rooth MA, Richter ME, Dillon MT. Long-Term Binaural Hearing Improvements for Cochlear Implant Users with Asymmetric Hearing Loss. Laryngoscope 2023; 133:1480-1485. [PMID: 36053850 DOI: 10.1002/lary.30368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/30/2022] [Accepted: 08/09/2022] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To assess long-term binaural hearing abilities for cochlear implant (CI) users with unilateral hearing loss (UHL) or asymmetric hearing loss (AHL). METHODS A prospective, longitudinal, repeated measures study was completed at a tertiary referral center evaluating adults with UHL or AHL undergoing cochlear implantation. Binaural hearing abilities were assessed with masked speech recognition tasks using AzBio sentences in a 10-talker masker. Performance was evaluated as the ability to benefit from spatial release from masking (SRM). SRM was calculated as the difference in scores when the masker was presented toward the CI-ear (SRMci ) or the contralateral ear (SRMcontra ) relative to the co-located condition (0°). Assessments were completed pre-operatively and at annual intervals out to 5 years post-activation. RESULTS Twenty UHL and 19 AHL participants were included in the study. Linear Mixed Models showed significant main effects of interval and group for SRMcontra . There was a significant interaction between interval and group, with UHL participants reaching asymptotic performance early and AHL participants demonstrating continued growth in binaural abilities to 5 years post-activation. The improvement in SRM showed a significant positive correlation with contralateral unaided hearing thresholds (p = 0.050) as well as age at implantation (p = 0.031). CONCLUSIONS CI recipients with UHL and AHL showed improved SRM with long-term device use. The time course of improvement varied by cohort, with the UHL cohort reaching asymptotic performance early and the AHL cohort continuing to improve beyond 1 year. Differences between cohorts could be driven by differences in age at implantation as well as contralateral unaided hearing thresholds. LEVEL OF EVIDENCE 3 Laryngoscope, 133:1480-1485, 2023.
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Affiliation(s)
- Nicholas J Thompson
- Department of Otolaryngology-Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, U.S.A
| | - Kevin D Brown
- Department of Otolaryngology-Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, U.S.A
| | - Emily Buss
- Department of Otolaryngology-Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, U.S.A
| | - Meredith A Rooth
- Department of Otolaryngology-Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, U.S.A
| | - Margaret E Richter
- Department of Otolaryngology-Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, U.S.A
- Division of Speech and Hearing Sciences, Department of Allied Health Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, U.S.A
| | - Margaret T Dillon
- Department of Otolaryngology-Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, U.S.A
- Division of Speech and Hearing Sciences, Department of Allied Health Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, U.S.A
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18
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Carr CE, Wang T, Kraemer I, Capshaw G, Ashida G, Koeppl C, Kempter R, Kuokkanen PT. Experience-Dependent Plasticity in Nucleus Laminaris of the Barn Owl. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.02.526884. [PMID: 36778252 PMCID: PMC9915572 DOI: 10.1101/2023.02.02.526884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Barn owls experience increasing interaural time differences (ITDs) during development, because their head width more than doubles in the month after hatching. We therefore hypothesized that their ITD detection circuit might be modified by experience. To test this, we raised owls with unilateral ear inserts that delayed and attenuated the acoustic signal, then measured the ITD representation in the brainstem nucleus laminaris (NL) when they were adult. The ITD circuit is composed of delay line inputs to coincidence detectors, and we predicted that plastic changes would lead to shorter delays in the axons from the manipulated ear, and complementary shifts in ITD representation on the two sides. In owls that received ear inserts starting around P14, the maps of ITD shifted in the predicted direction, but only on the ipsilateral side, and only in those tonotopic regions that had not experienced auditory stimulation prior to insertion. The contralateral map did not change. Experience-dependent plasticity of the ITD circuit occurs in NL, and our data suggest that ipsilateral and contralateral delays are independently regulated. Thus, altered auditory input during development leads to long-lasting changes in the representation of ITD.
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19
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Ji H, Yu X, Xiao Z, Zhu H, Liu P, Lin H, Chen R, Hong Q. Features of Cognitive Ability and Central Auditory Processing of Preschool Children With Minimal and Mild Hearing Loss. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2023; 66:1867-1888. [PMID: 37116308 DOI: 10.1044/2023_jslhr-22-00395] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
OBJECTIVE This study aimed to investigate the current status of cognitive development and central auditory processing development of preschool children with minimal and mild hearing loss (MMHL) in Nanjing, China. METHOD We recruited 34 children with MMHL and 45 children with normal hearing (NH). They completed a series of tests, including cognitive tests (i.e., Wechsler Preschool and Primary Scale of Intelligence and Continuous Performance Test), behavioral auditory tests (speech-in-noise [SIN] test and frequency pattern test), and objective electrophysiological audiometry (speech-evoked auditory brainstem response and cortical auditory evoked potential). In addition, teacher evaluations and demographic information and questionnaires completed by parents were collected. RESULTS Regarding cognitive ability, statistical differences in the verbal comprehensive index, full-scale intelligence quotient, and abnormal rate of attention test score were found between the MMHL group and the NH group. The children with MMHL performed poorer on the SIN test than the children with NH. As for the auditory electrophysiology of the two groups, the latency and amplitude of some waves of the speech-evoked auditory brainstem response and cortical auditory evoked potential were statistically different between the two groups. We attempted to explore the relationship between some key indicators of auditory processing and some key indicators of cognitive development. CONCLUSIONS Children with MMHL are already at increased developmental risk as early as preschool. They are more likely to have problems with attention and verbal comprehension than children with NH. This condition is not compensated with increasing age during the preschool years. The results suggest a possible relationship between the risk of cognitive deficit and divergence of auditory processing. SUPPLEMENTAL MATERIAL https://doi.org/10.23641/asha.22670473.
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Affiliation(s)
- Hui Ji
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Jiangsu, China
| | - Xinyue Yu
- School of Pediatrics, Nanjing Medical University, Jiangsu, China
| | - Zhenglu Xiao
- School of Pediatrics, Nanjing Medical University, Jiangsu, China
| | - Huiqin Zhu
- School of Pediatrics, Nanjing Medical University, Jiangsu, China
| | - Panting Liu
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Jiangsu, China
| | - Huanxi Lin
- School of Nursing, Nanjing Medical University, Jiangsu, China
| | - Renjie Chen
- The Second Affiliated Hospital of Nanjing Medical University, Jiangsu, China
| | - Qin Hong
- Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Jiangsu, China
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20
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Cadre B, Simon F, Célérier C, Coudert C, Flament J, Loundon N, Belhous K, Denoyelle F. Long-term outcomes of retrospective case series of middle ear implantation with Vibrant Soundbridge in children with congenital aural atresia. Eur Arch Otorhinolaryngol 2023; 280:1629-1637. [PMID: 36098862 DOI: 10.1007/s00405-022-07633-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 08/25/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE to assess audiological performance in quiet and noise, quality of life and side effects of Vibrant Soundbridge (VSB) in children with congenital aural atresia (CAA). METHODS A retrospective study including consecutive patients with unilateral or bilateral CAA implanted with VSB from 2009 to 2020 in a tertiary referral centre. RESULTS 18 patients with CAA and a present stapes were included (3 simultaneous bilateral VSB implants) and 21 ears: 17 VSB were attached to the short incus process, and four to the stapes. Age at implantation ranged from 4.7 to 15.8 years. Average follow-up was 6.5 years (± 3.7 years). In unilateral VSB, air conduction pure tone average (ACPTA) thresholds increased from 75.3 ± 15.2 to 32.6 ± 8.3 dB post-operatively (VSB activated) (n = 15; p < 0.01). The speech reception threshold (SRT) and the word recognition score (WRS) were significantly improved from 81.5 ± 10.4 to 43.9 ± 7.6 dB and 0% to 84.8 ± 8.5% postoperatively (n = 15; p < 0.01). The signal to noise ratio (SNR) was significantly improved from 2.1 ± 2.9 dB VSB inactivated to 0.3 ± 2.7 dB VSB activated (n = 15; p < 0.01). There was no significant difference in performance according to floating mass transducer (FMT) placement. 5/15 children were non-users at last follow-up in unilateral VSB and 0/3 in bilateral. CONCLUSIONS CAA ears with VSB activated had a significant improvement of ACPTA, WRS, SRT and SNR. A third of patients with unilateral CAA became non-users at last follow-up. The main challenge is to target the indications for the implantation of the VSB to avoid its discontinuation.
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Affiliation(s)
- Barbara Cadre
- Université Paris Cité, 75006, Paris, France.,Department of Paediatric Otolaryngology, AP-HP, Hôpital Necker-Enfants Malades, 149 rue de Sèvres, 75015, Paris, France
| | - François Simon
- Université Paris Cité, 75006, Paris, France. .,Department of Paediatric Otolaryngology, AP-HP, Hôpital Necker-Enfants Malades, 149 rue de Sèvres, 75015, Paris, France.
| | - Charlotte Célérier
- Department of Paediatric Otolaryngology, AP-HP, Hôpital Necker-Enfants Malades, 149 rue de Sèvres, 75015, Paris, France
| | - Cyrille Coudert
- Department of Paediatric Otolaryngology, AP-HP, Hôpital Necker-Enfants Malades, 149 rue de Sèvres, 75015, Paris, France.,Audika Hearing Expertise Laboratory, 19, avenue des Gobelins, 75005, Paris, France
| | - Jonathan Flament
- Department of Paediatric Otolaryngology, AP-HP, Hôpital Necker-Enfants Malades, 149 rue de Sèvres, 75015, Paris, France.,Audika Hearing Expertise Laboratory, 19, avenue des Gobelins, 75005, Paris, France
| | - Natalie Loundon
- Department of Paediatric Otolaryngology, AP-HP, Hôpital Necker-Enfants Malades, 149 rue de Sèvres, 75015, Paris, France
| | - Kahina Belhous
- Department of Radiology, AP-HP, Hôpital Necker-Enfants Malades, 75015, Paris, France
| | - Françoise Denoyelle
- Université Paris Cité, 75006, Paris, France.,Department of Paediatric Otolaryngology, AP-HP, Hôpital Necker-Enfants Malades, 149 rue de Sèvres, 75015, Paris, France
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21
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Kırbaç A, Kaynakoğlu B, ASLAN F, İncesulu A. Effects of Unilateral Audio-Vestibular Insufficiency on Spatial Hearing. Indian J Otolaryngol Head Neck Surg 2023; 75:313-319. [PMID: 37206850 PMCID: PMC10188835 DOI: 10.1007/s12070-022-03442-1] [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: 10/26/2022] [Accepted: 12/25/2022] [Indexed: 01/09/2023] Open
Abstract
This study aimed to compare spatial hearing performance between adult individuals with the unilateral sensorineural hearing loss and unilateral loss of horizontal semicircular canal function (termed canal paresis/weakness) in the same ear and adults with normal hearing thresholds and normal vestibular function and to examine associated factors (duration of hearing loss and rate of canal paresis).The study participants consisted of 20 adults (aged 48±11 years) with unilateral sensorineural hearing loss and unilateral canal paresis (unilateral weakness≥25%) in the same ear. The control group comprised 25 adults (aged 45±13 years) with normal hearing and a unilateral weakness rate below 25%. Pure tone audiometry, bithermal binaural air caloric test, Turkish Spatial Hearing Questionnaire (T-SHQ), and Standardized Mini-Mental State Exam were applied to all the individuals. When the performance of the participants in T-SHQ was examined both in terms of the subscales and the total scale, there was a statistically significant difference between the two groups in relation to the scores. A statistically significant, high, negative correlation was detected between the duration of hearing loss, the rate of canal paresis and all the subscale scores and total score of T-SHQ. According to these results, as the duration of hearing loss increased, the scores obtained from the questionnaire decreased. As the rate of canal paresis increased, vestibular involvement increased, and the T-SHQ score decreased. This study showed that adults with unilateral hearing loss and unilateral canal paresis in the same ear had lower spatial hearing performance than those with normal hearing and balance. Supplementary Information The online version contains supplementary material available at 10.1007/s12070-022-03442-1.
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Affiliation(s)
- Arzu Kırbaç
- Faculty of Health Sciences, Department of Audiology, Eskişehir Osmangazi University, Eskişehir, Türkiye
| | - Büşra Kaynakoğlu
- Health Science Faculty, Department of Audiology, Selçuk University, Konya, Türkiye
| | - Filiz ASLAN
- Health Science Faculty, Department of Audiology, Hacettepe University, Ankara, Turkey
| | - Armağan İncesulu
- Faculty of Medicine, Department of Otolaryngology, Eskisehir Osmangazi University, Eskişehir, Türkiye
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22
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Audiovisual Training in Virtual Reality Improves Auditory Spatial Adaptation in Unilateral Hearing Loss Patients. J Clin Med 2023; 12:jcm12062357. [PMID: 36983357 PMCID: PMC10058351 DOI: 10.3390/jcm12062357] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/13/2023] [Accepted: 03/13/2023] [Indexed: 03/22/2023] Open
Abstract
Unilateral hearing loss (UHL) leads to an alteration of binaural cues resulting in a significant increment of spatial errors in the horizontal plane. In this study, nineteen patients with UHL were recruited and randomized in a cross-over design into two groups; a first group (n = 9) that received spatial audiovisual training in the first session and a non-spatial audiovisual training in the second session (2 to 4 weeks after the first session). A second group (n = 10) received the same training in the opposite order (non-spatial and then spatial). A sound localization test using head-pointing (LOCATEST) was completed prior to and following each training session. The results showed a significant decrease in head-pointing localization errors after spatial training for group 1 (24.85° ± 15.8° vs. 16.17° ± 11.28°; p < 0.001). The number of head movements during the spatial training for the 19 participants did not change (p = 0.79); nonetheless, the hand-pointing errors and reaction times significantly decreased at the end of the spatial training (p < 0.001). This study suggests that audiovisual spatial training can improve and induce spatial adaptation to a monaural deficit through the optimization of effective head movements. Virtual reality systems are relevant tools that can be used in clinics to develop training programs for patients with hearing impairments.
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23
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Han JH, Lee J, Lee HJ. The effect of noise on the cortical activity patterns of speech processing in adults with single-sided deafness. Front Neurol 2023; 14:1054105. [PMID: 37006498 PMCID: PMC10060629 DOI: 10.3389/fneur.2023.1054105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 02/27/2023] [Indexed: 03/18/2023] Open
Abstract
The most common complaint in people with single-sided deafness (SSD) is difficulty in understanding speech in a noisy environment. Moreover, the neural mechanism of speech-in-noise (SiN) perception in SSD individuals is still poorly understood. In this study, we measured the cortical activity in SSD participants during a SiN task to compare with a speech-in-quiet (SiQ) task. Dipole source analysis revealed left hemispheric dominance in both left- and right-sided SSD group. Contrary to SiN listening, this hemispheric difference was not found during SiQ listening in either group. In addition, cortical activation in the right-sided SSD individuals was independent of the location of sound whereas activation sites in the left-sided SSD group were altered by the sound location. Examining the neural-behavioral relationship revealed that N1 activation is associated with the duration of deafness and the SiN perception ability of individuals with SSD. Our findings indicate that SiN listening is processed differently in the brains of left and right SSD individuals.
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Affiliation(s)
- Ji-Hye Han
- Laboratory of Brain and Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, Republic of Korea
- Ear and Interaction Center, Doheun Institute for Digital Innovation in Medicine (D.I.D.I.M.), Hallym University Medical Center, Anyang, Republic of Korea
| | - Jihyun Lee
- Laboratory of Brain and Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, Republic of Korea
- Ear and Interaction Center, Doheun Institute for Digital Innovation in Medicine (D.I.D.I.M.), Hallym University Medical Center, Anyang, Republic of Korea
| | - Hyo-Jeong Lee
- Laboratory of Brain and Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, Republic of Korea
- Ear and Interaction Center, Doheun Institute for Digital Innovation in Medicine (D.I.D.I.M.), Hallym University Medical Center, Anyang, Republic of Korea
- Department of Otorhinolaryngology-Head and Neck Surgery, Hallym University College of Medicine, Chuncheon, Republic of Korea
- *Correspondence: Hyo-Jeong Lee
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24
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Yaar-Soffer Y, Kaplan-Neeman R, Greenbom T, Habiballah S, Shapira Y, Henkin Y. A cortical biomarker of audibility and processing efficacy in children with single-sided deafness using a cochlear implant. Sci Rep 2023; 13:3533. [PMID: 36864095 PMCID: PMC9981742 DOI: 10.1038/s41598-023-30399-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 02/22/2023] [Indexed: 03/04/2023] Open
Abstract
The goals of the current study were to evaluate audibility and cortical speech processing, and to provide insight into binaural processing in children with single-sided deafness (CHwSSD) using a cochlear implant (CI). The P1 potential to acoustically-presented speech stimuli (/m/, /g/, /t/) was recorded during monaural [Normal hearing (NH), CI], and bilateral (BIL, NH + CI) listening conditions within a clinical setting in 22 CHwSSD (mean age at CI/testing 4.7, 5.7 years). Robust P1 potentials were elicited in all children in the NH and BIL conditions. In the CI condition: (1) P1 prevalence was reduced yet was elicited in all but one child to at least one stimulus; (2) P1 latency was prolonged and amplitude was reduced, consequently leading to absence of binaural processing manifestations; (3) Correlation between P1 latency and age at CI/testing was weak and not significant; (4) P1 prevalence for /m/ was reduced and associated with CI manufacturer and duration of CI use. Results indicate that recording CAEPs to speech stimuli in clinical settings is feasible and valuable for the management of CHwSSD. While CAEPs provided evidence for effective audibility, a substantial mismatch in timing and synchrony of early-stage cortical processing between the CI and NH ear remains a barrier for the development of binaural interaction components.
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Affiliation(s)
- Y. Yaar-Soffer
- grid.413795.d0000 0001 2107 2845Hearing, Speech, and Language Center, Sheba Medical Center, Tel Hashomer, 52621 Ramat Gan, Israel ,grid.12136.370000 0004 1937 0546Department of Communication Disorders, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - R. Kaplan-Neeman
- grid.413795.d0000 0001 2107 2845Hearing, Speech, and Language Center, Sheba Medical Center, Tel Hashomer, 52621 Ramat Gan, Israel ,grid.12136.370000 0004 1937 0546Department of Communication Disorders, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - T. Greenbom
- grid.413795.d0000 0001 2107 2845Hearing, Speech, and Language Center, Sheba Medical Center, Tel Hashomer, 52621 Ramat Gan, Israel ,grid.12136.370000 0004 1937 0546Department of Communication Disorders, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - S. Habiballah
- grid.18098.380000 0004 1937 0562Department of Communication Disorders, Haifa University, Haifa, Israel ,grid.471000.2Alango Technologies LTD, Tirat Carmel, Israel
| | - Y. Shapira
- grid.413795.d0000 0001 2107 2845Department of Otolaryngology Head and Neck Surgery, Sheba Medical Center, Tel Hashomer, Israel
| | - Y. Henkin
- grid.413795.d0000 0001 2107 2845Hearing, Speech, and Language Center, Sheba Medical Center, Tel Hashomer, 52621 Ramat Gan, Israel ,grid.12136.370000 0004 1937 0546Department of Communication Disorders, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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25
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Karoui C, Strelnikov K, Payoux P, Salabert AS, James CJ, Deguine O, Barone P, Marx M. Auditory cortical plasticity after cochlear implantation in asymmetric hearing loss is related to spatial hearing: a PET H215O study. Cereb Cortex 2023; 33:2229-2244. [PMID: 35640270 PMCID: PMC9977387 DOI: 10.1093/cercor/bhac204] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 01/20/2023] Open
Abstract
In asymmetric hearing loss (AHL), the normal pattern of contralateral hemispheric dominance for monaural stimulation is modified, with a shift towards the hemisphere ipsilateral to the better ear. The extent of this shift has been shown to relate to sound localization deficits. In this study, we examined whether cochlear implantation to treat postlingual AHL can restore the normal functional pattern of auditory cortical activity and whether this relates to improved sound localization. The auditory cortical activity was found to be lower in the AHL cochlear implanted (AHL-CI) participants. A cortical asymmetry index was calculated and showed that a normal contralateral dominance was restored in the AHL-CI patients for the nonimplanted ear, but not for the ear with the cochlear implant. It was found that the contralateral dominance for the nonimplanted ear strongly correlated with sound localization performance (rho = 0.8, P < 0.05). We conclude that the reorganization of binaural mechanisms in AHL-CI subjects reverses the abnormal lateralization pattern induced by the deafness, and that this leads to improved spatial hearing. Our results suggest that cochlear implantation enables the reconstruction of the cortical mechanisms of spatial selectivity needed for sound localization.
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Affiliation(s)
- Chadlia Karoui
- UMR 5549, Faculté de Médecine Purpan, Centre National de la Recherche Scientifique, Toulouse, France.,Centre de Recherche Cerveau et Cognition, Université de Toulouse, Université Paul Sabatier, Toulouse, France
| | - Kuzma Strelnikov
- UMR 5549, Faculté de Médecine Purpan, Centre National de la Recherche Scientifique, Toulouse, France.,Centre de Recherche Cerveau et Cognition, Université de Toulouse, Université Paul Sabatier, Toulouse, France
| | - Pierre Payoux
- Nuclear Medicine Department, Purpan University Hospital, Toulouse, France.,ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, Toulouse, France
| | - Anne-Sophie Salabert
- Nuclear Medicine Department, Purpan University Hospital, Toulouse, France.,ToNIC, Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS, Toulouse, France
| | - Chris J James
- Cochlear France SAS, Toulouse, France.,Service d'Oto-Rhino-Laryngologie et Oto-Neurologie, CHU Toulouse France, Université Toulouse 3, Toulouse, France
| | - Olivier Deguine
- UMR 5549, Faculté de Médecine Purpan, Centre National de la Recherche Scientifique, Toulouse, France.,Centre de Recherche Cerveau et Cognition, Université de Toulouse, Université Paul Sabatier, Toulouse, France.,Service d'Oto-Rhino-Laryngologie et Oto-Neurologie, CHU Toulouse France, Université Toulouse 3, Toulouse, France
| | - Pascal Barone
- UMR 5549, Faculté de Médecine Purpan, Centre National de la Recherche Scientifique, Toulouse, France.,Centre de Recherche Cerveau et Cognition, Université de Toulouse, Université Paul Sabatier, Toulouse, France
| | - Mathieu Marx
- UMR 5549, Faculté de Médecine Purpan, Centre National de la Recherche Scientifique, Toulouse, France.,Centre de Recherche Cerveau et Cognition, Université de Toulouse, Université Paul Sabatier, Toulouse, France.,Service d'Oto-Rhino-Laryngologie et Oto-Neurologie, CHU Toulouse France, Université Toulouse 3, Toulouse, France
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26
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Han JH, Lee J, Lee HJ. Attentional modulation of auditory cortical activity in individuals with single-sided deafness. Neuropsychologia 2023; 183:108515. [PMID: 36792051 DOI: 10.1016/j.neuropsychologia.2023.108515] [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: 10/12/2022] [Revised: 02/10/2023] [Accepted: 02/12/2023] [Indexed: 02/15/2023]
Abstract
Persons with single-sided deafness (SSD) typically complain about the impaired ability to locate sounds and to understand speech within background noise. However, the findings from previous studies suggest that paying attention to sounds could mitigate the degraded spatial and speech-in-noise perception. In the present study, we characterize the pattern of cortical activation depending on the side of deafness, and attentional modulation of neural responses to determine if it can assist better sound processing in people with SSD. For the active listening condition, adult subjects with SSD performed sound localization tasks. On the other hand, they watched movies without attending to speech stimuli during passive listening. The sensor-level global field power of N1 and source-level N1 activation were computed to compare the active- and passive-listening conditions and left- and right-sided deafness. The results show that attentional modulation differs depending on the side of deafness: active listening increased the cortical activity in individuals with left-sided deafness but not in those with right-sided deafness. At the source level, the attentional gain was more apparent in left-sided deafness in that paying attention enhanced brain activation in both hemispheres. In addition, SSD participants with larger cortical activities in the right primary auditory cortex had shorter durations of deafness. Our results indicate that the side of deafness can change top-down attentional processing in the auditory cortical pathway in SSD patients.
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Affiliation(s)
- Ji-Hye Han
- Laboratory of Brain & Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, Republic of Korea; Ear and Interaction Center, Doheun Institute for Digital Innovation in Medicine (D.I.D.I.M.), Hallym University Sacred Heart Hospital, Anyang, Republic of Korea
| | - Jihyun Lee
- Laboratory of Brain & Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, Republic of Korea; Ear and Interaction Center, Doheun Institute for Digital Innovation in Medicine (D.I.D.I.M.), Hallym University Sacred Heart Hospital, Anyang, Republic of Korea
| | - Hyo-Jeong Lee
- Laboratory of Brain & Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, Republic of Korea; Ear and Interaction Center, Doheun Institute for Digital Innovation in Medicine (D.I.D.I.M.), Hallym University Sacred Heart Hospital, Anyang, Republic of Korea; Department of Otorhinolaryngology-Head and Neck Surgery, Hallym University College of Medicine, Chuncheon, Republic of Korea.
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27
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Sanchez Jimenez A, Willard KJ, Bajo VM, King AJ, Nodal FR. Persistence and generalization of adaptive changes in auditory localization behavior following unilateral conductive hearing loss. Front Neurosci 2023; 17:1067937. [PMID: 36816127 PMCID: PMC9929551 DOI: 10.3389/fnins.2023.1067937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 01/10/2023] [Indexed: 02/04/2023] Open
Abstract
Introduction Sound localization relies on the neural processing of binaural and monaural spatial cues generated by the physical properties of the head and body. Hearing loss in one ear compromises binaural computations, impairing the ability to localize sounds in the horizontal plane. With appropriate training, adult individuals can adapt to this binaural imbalance and largely recover their localization accuracy. However, it remains unclear how long this learning is retained or whether it generalizes to other stimuli. Methods We trained ferrets to localize broadband noise bursts in quiet conditions and measured their initial head orienting responses and approach-to-target behavior. To evaluate the persistence of auditory spatial learning, we tested the sound localization performance of the animals over repeated periods of monaural earplugging that were interleaved with short or long periods of normal binaural hearing. To explore learning generalization to other stimulus types, we measured the localization accuracy before and after adaptation using different bandwidth stimuli presented against constant or amplitude-modulated background noise. Results Retention of learning resulted in a smaller initial deficit when the same ear was occluded on subsequent occasions. Each time, the animals' performance recovered with training to near pre-plug levels of localization accuracy. By contrast, switching the earplug to the contralateral ear resulted in less adaptation, indicating that the capacity to learn a new strategy for localizing sound is more limited if the animals have previously adapted to conductive hearing loss in the opposite ear. Moreover, the degree of adaptation to the training stimulus for individual animals was significantly correlated with the extent to which learning extended to untrained octave band target sounds presented in silence and to broadband targets presented in background noise, suggesting that adaptation and generalization go hand in hand. Conclusions Together, these findings provide further evidence for plasticity in the weighting of monaural and binaural cues during adaptation to unilateral conductive hearing loss, and show that the training-dependent recovery in spatial hearing can generalize to more naturalistic listening conditions, so long as the target sounds provide sufficient spatial information.
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28
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Valzolgher C, Alzaher M, Gaveau V, Coudert A, Marx M, Truy E, Barone P, Farnè A, Pavani F. Capturing Visual Attention With Perturbed Auditory Spatial Cues. Trends Hear 2023; 27:23312165231182289. [PMID: 37611181 PMCID: PMC10467228 DOI: 10.1177/23312165231182289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 05/25/2023] [Accepted: 05/29/2023] [Indexed: 08/25/2023] Open
Abstract
Lateralized sounds can orient visual attention, with benefits for audio-visual processing. Here, we asked to what extent perturbed auditory spatial cues-resulting from cochlear implants (CI) or unilateral hearing loss (uHL)-allow this automatic mechanism of information selection from the audio-visual environment. We used a classic paradigm from experimental psychology (capture of visual attention with sounds) to probe the integrity of audio-visual attentional orienting in 60 adults with hearing loss: bilateral CI users (N = 20), unilateral CI users (N = 20), and individuals with uHL (N = 20). For comparison, we also included a group of normal-hearing (NH, N = 20) participants, tested in binaural and monaural listening conditions (i.e., with one ear plugged). All participants also completed a sound localization task to assess spatial hearing skills. Comparable audio-visual orienting was observed in bilateral CI, uHL, and binaural NH participants. By contrast, audio-visual orienting was, on average, absent in unilateral CI users and reduced in NH listening with one ear plugged. Spatial hearing skills were better in bilateral CI, uHL, and binaural NH participants than in unilateral CI users and monaurally plugged NH listeners. In unilateral CI users, spatial hearing skills correlated with audio-visual-orienting abilities. These novel results show that audio-visual-attention orienting can be preserved in bilateral CI users and in uHL patients to a greater extent than unilateral CI users. This highlights the importance of assessing the impact of hearing loss beyond auditory difficulties alone: to capture to what extent it may enable or impede typical interactions with the multisensory environment.
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Affiliation(s)
- Chiara Valzolgher
- Center for Mind/Brain Sciences - CIMeC, University of Trento, Rovereto, Italy
- Integrative, Multisensory, Perception, Action and Cognition Team, Lyon Neuroscience Research Center, Lyon, France
| | - Mariam Alzaher
- Centre de Recherche Cerveau & Cognition, Toulouse, France
- Hospices Civils, Toulouse, France
| | - Valérie Gaveau
- Integrative, Multisensory, Perception, Action and Cognition Team, Lyon Neuroscience Research Center, Lyon, France
| | | | - Mathieu Marx
- Centre de Recherche Cerveau & Cognition, Toulouse, France
- Hospices Civils, Toulouse, France
| | - Eric Truy
- Integrative, Multisensory, Perception, Action and Cognition Team, Lyon Neuroscience Research Center, Lyon, France
- Hospices Civils de Lyon, Lyon, France
| | - Pascal Barone
- Centre de Recherche Cerveau & Cognition, Toulouse, France
| | - Alessandro Farnè
- Center for Mind/Brain Sciences - CIMeC, University of Trento, Rovereto, Italy
- Integrative, Multisensory, Perception, Action and Cognition Team, Lyon Neuroscience Research Center, Lyon, France
- Neuro-immersion, Lyon, France
| | - Francesco Pavani
- Center for Mind/Brain Sciences - CIMeC, University of Trento, Rovereto, Italy
- Integrative, Multisensory, Perception, Action and Cognition Team, Lyon Neuroscience Research Center, Lyon, France
- Centro Interuniversitario di Ricerca « Cognizione, Linguaggio e Sordità », Rovereto, Italy
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Seebacher J, Franke-Trieger A, Weichbold V, Galvan O, Schmutzhard J, Zorowka P, Stephan K. Sound localisation of low- and high-frequency sounds in cochlear implant users with single-sided deafness. Int J Audiol 2023; 62:71-78. [PMID: 35103553 DOI: 10.1080/14992027.2022.2030496] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Localisation of low- and high-frequency sounds in single-sided deaf cochlear implant users was investigated using noise stimuli designed to mitigate monaural localisation cues. DESIGN Within subject design. Sound source localisation was tested in the horizontal plane using an array of seven loudspeakers along the azimuthal angle span from -90° to +90°. Stimuli were broadband noise and high- and low-frequency noise. STUDY SAMPLE Twelve adult subjects with single-sided deafness participated in the study. All had normal hearing in the healthy ear and were supplied with a cochlear implant (CI) in their deaf ear. RESULTS With broadband noise, the mean angular localisation error was 39° in aided condition as compared to a median angular error of 83.6° when the speech processor was not worn. For high-frequency noise, the median angular error was 30° and for low-frequency noise, it was 46° in the CI-aided condition. CONCLUSIONS Single-sided deaf CI users show the best sound localisation for high-frequency sounds. This supports the view that interaural level differences are dominant for sound localisation in these listeners. Nonetheless, a limited ability to localise low-frequency sounds was observed, which may be based on the supportive perception of interaural time differences.
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Affiliation(s)
- J Seebacher
- Department for Hearing, Speech and Voice Disorders, Medical University of Innsbruck, Innsbruck, Austria
| | - A Franke-Trieger
- Saxonian Cochlear Implant Center, Department of Otorhinolaryngology, Technical University of Dresden, Dresden, Germany
| | - V Weichbold
- Department for Hearing, Speech and Voice Disorders, Medical University of Innsbruck, Innsbruck, Austria
| | - O Galvan
- Department for Hearing, Speech and Voice Disorders, Medical University of Innsbruck, Innsbruck, Austria
| | - J Schmutzhard
- Department of Otorhinolaryngology, Medical University Innsbruck, Innsbruck, Austria
| | - P Zorowka
- Department for Hearing, Speech and Voice Disorders, Medical University of Innsbruck, Innsbruck, Austria
| | - K Stephan
- Department for Hearing, Speech and Voice Disorders, Medical University of Innsbruck, Innsbruck, Austria
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Dixon PR, Feeny D, Tomlinson G, Cushing SL, Chen JM. Improving the Hearing Status Discrimination of the Health Utilities Index, Mark 3: Design of the Hearing Status Classification System. Otol Neurotol 2022; 43:e1069-e1076. [PMID: 36109145 DOI: 10.1097/mao.0000000000003689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Redesign the health status classification system of the Health Utilities Index, Mark 3 (HUI-3) "hearing" attribute to improve its discrimination of hearing-impaired health states. STUDY DESIGN Domain and item selection from a previously generated item set guided by a domain and item importance survey, structural independence, and cognitive interviews with patients. SETTING Tertiary referral center. PARTICIPANTS Patients with a range of hearing loss severities, etiologies, and treatment experiences participated in the domain and item importance survey (n = 108) and hour-long cognitive interviews (n = 10). MAIN OUTCOME AND MEASURES Subattributes and levels for the novel Hearing attribute. Domain and item importance was scored on a seven-point Likert scale (1, not at all important; 7, extremely important). RESULTS Mean domain importance was highest for "speech in noise" (6.21; 95% confidence interval, 5.98-6.43) and lowest for "benefits of hearing loss" (3.46; 95% confidence interval, 3.03-3.89). Domains with moderate or greater ( r ≥ 0.5) domain importance Pearson correlation or construct overlap that interfered with structural independence were combined into single subattributes. Iterative adjustments to instructions, items, and phrasing were guided by cognitive interviews to derive the final instrument with seven subattributes: speech, environmental sounds, localization, listening effort, tinnitus, music, and assistive devices. The novel hearing attribute defines 25,920 unique hearing states. CONCLUSION The novel HUI-hearing is part of a comprehensive health utility instrument designed for individuals with hearing loss. Pending derivation of a hearing single attribute utility function and evaluation of measurement properties, our innovative approach could be used to improve health utility measurement for impairments described by any of the other HUI-3 attributes.
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Affiliation(s)
| | - David Feeny
- Department of Economics and Centre for Health Economics and Policy Analysis, McMaster University, and Health Utilities Incorporated, Hamilton
| | | | - Sharon L Cushing
- Department of Otolaryngology - Head & Neck Surgery, Hospital for Sick Children, University of Toronto, Toronto
| | - Joseph M Chen
- Department of Otolaryngology-Head & Neck Surgery, Sunnybrook Health Sciences Centre, University of Toronto, Canada
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31
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Johnstone P, Marston R, Bickley N, Rishiq D, Harkrider A, Plyler E, Hedrick M. Effects of Unilateral Hearing Loss on Speech-Evoked Auditory Brainstem Responses and Reading: A Preliminary Study. Am J Audiol 2022; 31:1260-1267. [DOI: 10.1044/2022_aja-22-00028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Purpose:
The purpose of this study was to determine whether the speech-evoked auditory brainstem responses (sABRs) obtained by stimulating the ear with normal sensitivity in children with unilateral hearing loss (UHL) were different from that of children with normal hearing (NH), and to explore correlations between the sABR findings and measures of reading.
Method:
Eleven children with UHL and 11 children with NH were tested via the BioMARK sABR protocol using the syllable /da/; latency and amplitudes of Waves V, A, C, D, E, F, and O were measured. Participants also were tested on the Phonemic Synthesis Test (PST) and the Woodcock Reading Mastery Test–Revised (WRMT-R), particularly the Reading Readiness, Basic Skills, and Comprehension subtests.
Results:
Multivariate analysis of variance testing showed a significantly higher amplitude for Wave A for the NH group as compared to the UHL group. Separate ANOVAs also found significantly lower scores for the UHL group compared to the NH group on Basic Skills and Comprehension subtests of the Woodcock. Significant positive Spearman rho correlations were found for the UHL group between wave amplitudes for V, A, and O and the Reading Readiness score, and between wave amplitudes for V, A, D, and O and the Reading Comprehension score. A significant correlation also was found between the Total Reading score and wave amplitudes for V and A. No such correlations were found between wave amplitude and Woodcock scores for the NH group. Further testing of the UHL data found significant relationships between the pure-tone average of the hearing loss ear and the Basic Skills, Comprehension, and Total Reading scores from the WRMT-R. There was also a significant correlation between the PST score and Wave C amplitude.
Conclusion:
There may be a connection between speech encoding and measures of reading in children with UHL.
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Affiliation(s)
- Patti Johnstone
- The University of Tennessee Health Science Center, Knoxville
| | - Rachel Marston
- The University of Tennessee Health Science Center, Knoxville
| | - Natalie Bickley
- The University of Tennessee Health Science Center, Knoxville
| | - Dania Rishiq
- The University of Tennessee Health Science Center, Knoxville
| | | | - Erin Plyler
- The University of Tennessee Health Science Center, Knoxville
| | - Mark Hedrick
- The University of Tennessee Health Science Center, Knoxville
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Peetermans O, Dobbels B, Mertens G, Moyaert J, van de Berg R, Vanderveken O, Van de Heyning P, Pérez Fornos A, Guinand N, Lammers MJW, Van Rompaey V. Sound localization in patients with bilateral vestibulopathy. Eur Arch Otorhinolaryngol 2022; 279:5601-5613. [PMID: 35536383 DOI: 10.1007/s00405-022-07414-7] [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: 11/01/2021] [Accepted: 04/19/2022] [Indexed: 01/04/2023]
Abstract
PURPOSE The goal of this study was to evaluate if bilaterally (partially) absent vestibular function during static sound localization testing, would have a negative impact on sound localization skills. Therefore, this study compared horizontal static sound localization skills of normal-hearing patients with bilateral vestibulopathy (BV) and healthy controls. METHODS Thirteen normal-hearing patients with BV and thirteen age-matched healthy controls were included. Sound localization skills were tested using seven loudspeakers in a frontal semicircle, ranging from - 90° to + 90°. Sound location accuracy was analyzed using the root-mean-square error (RMSE) and the mean absolute error (MAE). To evaluate the severity of the BV symptoms, the following questionnaires were used: Dizziness Handicap Inventory (DHI), Oscillopsia severity questionnaire (OSQ), 12-item Spatial, Speech, and Qualities Questionnaire (SSQ12), and Health Utilities Index Mark 3 (HUI3). RESULTS The RMSE and MAE were significantly larger (worse) in the BV group than in the healthy control group, with respective median RMSE of 4.6° and 0°, and a median MAE of 0.7° and 0°. The subjective reporting of speech perception, spatial hearing, and quality of life only demonstrated a moderate correlation between DHI (positive correlation) and HUI total score (negative correlation), and localization scores. CONCLUSION Static sound localization skills of patients with BV were only mildly worse compared to healthy controls. However, this difference was very small and therefore most likely due to impaired cognitive function. The vestibular system does not seem to have a modulating role in sound localization during static conditions, and its impact is negligible in contrast to the impact of hearing impairment. Furthermore, the subjective reporting of speech perception, spatial hearing, and quality of life was not strongly correlated with localization scores.
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Affiliation(s)
- Olivier Peetermans
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium. .,Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium. .,Department of Otorhinolaryngology and Head and Neck Surgery, UZA, Drie Eikenstraat 655, 2650, Edegem, Belgium.
| | - Bieke Dobbels
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.,Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium
| | - Griet Mertens
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.,Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium
| | - Julie Moyaert
- Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium
| | - Raymond van de Berg
- Department of Otolaryngology, Head and Neck Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands.,Faculty of Physics, Tomsk State University, Tomsk, Russia
| | - Olivier Vanderveken
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.,Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium
| | - Paul Van de Heyning
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.,Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium
| | - Angélica Pérez Fornos
- Service of Otorhinolaryngology Head and Neck Surgery, Department of Clinical Neurosciences, Geneva University Hospitals, Geneva, Switzerland
| | - Nils Guinand
- Service of Otorhinolaryngology Head and Neck Surgery, Department of Clinical Neurosciences, Geneva University Hospitals, Geneva, Switzerland
| | - Marc J W Lammers
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.,Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium
| | - Vincent Van Rompaey
- Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.,Department of Otorhinolaryngology and Head and Neck Surgery, Antwerp University Hospital, Antwerp, Belgium
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Silva VAR, Pauna HF, Lavinsky J, Hyppolito MA, Vianna MF, Leal M, Massuda ET, Hamerschmidt R, Bahmad Jr F, Cal RV, Sampaio ALL, Felix F, Chone CT, Castilho AM. Task force Guideline of Brazilian Society of Otology - hearing loss in children - Part II - Treatment. Braz J Otorhinolaryngol 2022; 89:190-206. [PMID: 36528468 PMCID: PMC9874354 DOI: 10.1016/j.bjorl.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 11/14/2022] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVES To provide an overview of the main evidence-based recommendations for the diagnosis of hearing loss in children and adolescents aged 0-18 years. METHODS Task force members were educated on knowledge synthesis methods, including electronic database search, review and selection of relevant citations, and critical appraisal of selected studies. Articles written in English or Portuguese on childhood hearing loss were eligible for inclusion. The American College of Physicians' guideline grading system and the American Thyroid Association's guideline criteria were used for critical appraisal of evidence and recommendations for therapeutic interventions. RESULTS The topics were divided into 2 parts: (1) treatment of sensorineural hearing loss: individual hearing aids, bilateral cochlear implants, cochlear implants in young children, unilateral hearing loss, and auditory neuropathy spectrum disorder; and (2) treatment of conductive/mixed hearing loss: external/middle ear malformations, ventilation tube insertion, and tympanoplasty in children. CONCLUSIONS In children with hearing loss, in addition to speech therapy, Hearing AIDS (HAs) or implantable systems may be indicated. Even in children with profound hearing loss, both the use of HAs and behavioral assessments while using the device are important.
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Affiliation(s)
- Vagner Antonio Rodrigues Silva
- Universidade Estadual de Campinas (Unicamp), Faculdade de Ciências Médicas, Departamento de Otorrinolaringologia e Cirurgia de Cabeça e Pescoço, Campinas, SP, Brazil,Corresponding author.
| | - Henrique Furlan Pauna
- Hospital Universitário Cajuru, Departamento de Otorrinolaringologia, Curitiba, PR, Brazil
| | - Joel Lavinsky
- Universidade Federal do Rio Grande do Sul (UFRGS), Departamento de Cirurgia, Porto Alegre, RS, Brazil
| | - Miguel Angelo Hyppolito
- Universidade de São Paulo (USP), Faculdade de Medicina de Ribeirão Preto, Departamento de Oftalmologia, Otorrinolaringologia e Cirurgia de Cabeça e Pescoço, Ribeirão Preto, SP, Brazil
| | - Melissa Ferreira Vianna
- Irmandade Santa Casa de Misericórdia de São Paulo, Departamento de Otorrinolaringologia, São Paulo, SP, Brazil
| | - Mariana Leal
- Universidade Federal de Pernambuco (UFPE), Departamento de Cirurgia, Recife, PE, Brazil
| | - Eduardo Tanaka Massuda
- Universidade de São Paulo (USP), Faculdade de Medicina de Ribeirão Preto, Departamento de Oftalmologia, Otorrinolaringologia e Cirurgia de Cabeça e Pescoço, Ribeirão Preto, SP, Brazil
| | - Rogério Hamerschmidt
- Universidade Federal do Paraná (UFPR), Hospital de Clínicas, Departamento de Otorrinolaringologia e Cirurgia de Cabeça e Pescoço, Curitiba, PR, Brazil
| | - Fayez Bahmad Jr
- Universidade de Brasília (UnB), Programa de Pós-Graduação em Ciências da Saúde, Brasília, DF, Brazil,Instituto Brasiliense de Otorrinolaringologia (IBO), Brasília, DF, Brazil
| | - Renato Valério Cal
- Centro Universitário do Estado do Pará (CESUPA), Departamento de Otorrinolaringologia, Belém, PA, Brazil
| | - André Luiz Lopes Sampaio
- Universidade de Brasília (UnB), Faculdade de Medicina, Laboratório de Ensino e Pesquisa em Otorrinolaringologia, Brasília, DF, Brazil
| | - Felippe Felix
- Universidade Federal do Rio de Janeiro (UFRJ), Hospital Universitário Clementino Fraga Filho (HUCFF), Departamento de Otorrinolaringologia, Rio de Janeiro, RJ, Brazil
| | - Carlos Takahiro Chone
- Universidade Estadual de Campinas (Unicamp), Faculdade de Ciências Médicas, Departamento de Otorrinolaringologia e Cirurgia de Cabeça e Pescoço, Campinas, SP, Brazil
| | - Arthur Menino Castilho
- Universidade Estadual de Campinas (Unicamp), Faculdade de Ciências Médicas, Departamento de Otorrinolaringologia e Cirurgia de Cabeça e Pescoço, Campinas, SP, Brazil
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Sound Localization Ability in Dogs. Vet Sci 2022; 9:vetsci9110619. [DOI: 10.3390/vetsci9110619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/02/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022] Open
Abstract
The minimum audible angle (MAA), defined as the smallest detectable difference between the azimuths of two identical sources of sound, is a standard measure of spatial auditory acuity in animals. Few studies have explored the MAA of dogs, using methods that do not allow potential improvement throughout the assessment, and with a very small number of dog(s) assessed. To overcome these limits, we adopted a staircase method on 10 dogs, using a two-forced choice procedure with two sound sources, testing angles of separation from 60° to 1°. The staircase method permits the level of difficulty for each dog to be continuously adapted and allows for the observation of improvement over time. The dogs’ average MAA was 7.6°, although with a large interindividual variability, ranging from 1.3° to 13.2°. A global improvement was observed across the procedure, substantiated by a gradual lowering of the MAA and of choice latency across sessions. The results indicate that the staircase method is feasible and reliable in the assessment of auditory spatial localization in dogs, highlighting the importance of using an appropriate method in a sensory discrimination task, so as to allow improvement over time. The results also reveal that the MAA of dogs is more variable than previously reported, potentially reaching values lower than 2°. Although no clear patterns of association emerged between MAA and dogs’ characteristics such as ear shape, head shape or age, the results suggest the value of conducting larger-scale studies to determine whether these or other factors influence sound localization abilities in dogs.
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Lohse M, Zimmer-Harwood P, Dahmen JC, King AJ. Integration of somatosensory and motor-related information in the auditory system. Front Neurosci 2022; 16:1010211. [PMID: 36330342 PMCID: PMC9622781 DOI: 10.3389/fnins.2022.1010211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 09/28/2022] [Indexed: 11/30/2022] Open
Abstract
An ability to integrate information provided by different sensory modalities is a fundamental feature of neurons in many brain areas. Because visual and auditory inputs often originate from the same external object, which may be located some distance away from the observer, the synthesis of these cues can improve localization accuracy and speed up behavioral responses. By contrast, multisensory interactions occurring close to the body typically involve a combination of tactile stimuli with other sensory modalities. Moreover, most activities involving active touch generate sound, indicating that stimuli in these modalities are frequently experienced together. In this review, we examine the basis for determining sound-source distance and the contribution of auditory inputs to the neural encoding of space around the body. We then consider the perceptual consequences of combining auditory and tactile inputs in humans and discuss recent evidence from animal studies demonstrating how cortical and subcortical areas work together to mediate communication between these senses. This research has shown that somatosensory inputs interface with and modulate sound processing at multiple levels of the auditory pathway, from the cochlear nucleus in the brainstem to the cortex. Circuits involving inputs from the primary somatosensory cortex to the auditory midbrain have been identified that mediate suppressive effects of whisker stimulation on auditory thalamocortical processing, providing a possible basis for prioritizing the processing of tactile cues from nearby objects. Close links also exist between audition and movement, and auditory responses are typically suppressed by locomotion and other actions. These movement-related signals are thought to cancel out self-generated sounds, but they may also affect auditory responses via the associated somatosensory stimulation or as a result of changes in brain state. Together, these studies highlight the importance of considering both multisensory context and movement-related activity in order to understand how the auditory cortex operates during natural behaviors, paving the way for future work to investigate auditory-somatosensory interactions in more ecological situations.
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Gessa E, Giovanelli E, Spinella D, Verdelet G, Farnè A, Frau GN, Pavani F, Valzolgher C. Spontaneous head-movements improve sound localization in aging adults with hearing loss. Front Hum Neurosci 2022; 16:1026056. [PMID: 36310849 PMCID: PMC9609159 DOI: 10.3389/fnhum.2022.1026056] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 09/21/2022] [Indexed: 11/04/2023] Open
Abstract
Moving the head while a sound is playing improves its localization in human listeners, in children and adults, with or without hearing problems. It remains to be ascertained if this benefit can also extend to aging adults with hearing-loss, a population in which spatial hearing difficulties are often documented and intervention solutions are scant. Here we examined performance of elderly adults (61-82 years old) with symmetrical or asymmetrical age-related hearing-loss, while they localized sounds with their head fixed or free to move. Using motion-tracking in combination with free-field sound delivery in visual virtual reality, we tested participants in two auditory spatial tasks: front-back discrimination and 3D sound localization in front space. Front-back discrimination was easier for participants with symmetrical compared to asymmetrical hearing-loss, yet both groups reduced their front-back errors when head-movements were allowed. In 3D sound localization, free head-movements reduced errors in the horizontal dimension and in a composite measure that computed errors in 3D space. Errors in 3D space improved for participants with asymmetrical hearing-impairment when the head was free to move. These preliminary findings extend to aging adults with hearing-loss the literature on the advantage of head-movements on sound localization, and suggest that the disparity of auditory cues at the two ears can modulate this benefit. These results point to the possibility of taking advantage of self-regulation strategies and active behavior when promoting spatial hearing skills.
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Affiliation(s)
- Elena Gessa
- Center for Mind/Brian Sciences - CIMeC, University of Trento, Rovereto, Italy
| | - Elena Giovanelli
- Center for Mind/Brian Sciences - CIMeC, University of Trento, Rovereto, Italy
| | | | - Grégoire Verdelet
- Integrative, Multisensory, Perception, Action and Cognition Team-IMPACT, Centre de Recherche en Neuroscience de Lyon, University Lyon 1, Lyon, France
- Neuro-immersion, Centre de Recherche en Neuroscience de Lyon, Lyon, France
| | - Alessandro Farnè
- Center for Mind/Brian Sciences - CIMeC, University of Trento, Rovereto, Italy
- Integrative, Multisensory, Perception, Action and Cognition Team-IMPACT, Centre de Recherche en Neuroscience de Lyon, University Lyon 1, Lyon, France
- Neuro-immersion, Centre de Recherche en Neuroscience de Lyon, Lyon, France
| | | | - Francesco Pavani
- Center for Mind/Brian Sciences - CIMeC, University of Trento, Rovereto, Italy
- Integrative, Multisensory, Perception, Action and Cognition Team-IMPACT, Centre de Recherche en Neuroscience de Lyon, University Lyon 1, Lyon, France
| | - Chiara Valzolgher
- Center for Mind/Brian Sciences - CIMeC, University of Trento, Rovereto, Italy
- Integrative, Multisensory, Perception, Action and Cognition Team-IMPACT, Centre de Recherche en Neuroscience de Lyon, University Lyon 1, Lyon, France
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American Cochlear Implant Alliance Task Force Guidelines for Clinical Assessment and Management of Adult Cochlear Implantation for Single-Sided Deafness. Ear Hear 2022; 43:1605-1619. [PMID: 35994570 PMCID: PMC9592177 DOI: 10.1097/aud.0000000000001260] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The indications for cochlear implantation have expanded to include individuals with profound sensorineural hearing loss in the impaired ear and normal hearing (NH) in the contralateral ear, known as single-sided deafness (SSD). There are additional considerations for the clinical assessment and management of adult cochlear implant candidates and recipients with SSD as compared to conventional cochlear implant candidates with bilateral moderate to profound sensorineural hearing loss. The present report reviews the current evidence relevant to the assessment and management of adults with SSD. A systematic review was also conducted on published studies that investigated outcomes of cochlear implant use on measures of speech recognition in quiet and noise, sound source localization, tinnitus perception, and quality of life for this patient population. Expert consensus and systematic review of the current literature were combined to provide guidance for the clinical assessment and management of adults with SSD.
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Zavdy O, Fostick L, Fink N, Danin S, Levin A, Lipschitz N, Hilly O. The Effect of Hearing Aids on Sound Localization in Mild Unilateral Conductive Hearing Loss. J Am Acad Audiol 2022; 33:357-363. [PMID: 35777670 DOI: 10.1055/a-1889-6578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Binaural hearing is of utmost importance for communicating in noisy surroundings and localizing the direction of sound. Unilateral hearing loss (UHL) affects the quality of life in both childhood and adulthood, speech development, and academic achievements. Sound amplification using air-conducting hearing aids (HAs) is a common option for hearing rehabilitation of UHL. The processing time of digital HAs can significantly delay the acoustic stimulation in 3 to 10 milliseconds, which is far longer than the maximal natural interaural time difference (ITD) of 750 microseconds. This can further impair spatial localization in these patients. PURPOSE We sought to assess whether HA effects on ITD and interaural level difference (ILD) impair localization among subjects with unilateral conductive hearing loss (UCHL). RESEARCH DESIGN "Normal"-hearing participants underwent localization testing in different free field settings. STUDY SAMPLE Ten volunteers with "normal"-hearing thresholds participated. INTERVENTION Repeated assessments were compared between "normal" (binaural) hearing, UCHL induced by insertion of an inactivated HA to the ear canal (conductive HL), and amplification with a HA. RESULTS In UCHL mode, with HA switched-off, localization was significantly impaired compared to "normal" hearing (NH; η2 = 0.151). Localization error was more pronounced when sound was presented from the front and from the side of the occluded ear. When switched-on, amplification with HAs significantly improved localization for all participants compared to UCHL. Better localization with HAs was seen in high frequencies compared to low frequencies (η2 = 0.08, 0.03). Even with HAs, localization did not reach that of NH (η2 = 0.034). CONCLUSION Mild UCHL caused localization to deteriorate. HAs significantly improved sound localization, albeit the delay caused by the device processing time. Most of the improvements were seen in high-frequency sounds, representing a beneficial effect of amplification on ILD. Our results have potential clinical value in situations of mild CHL, for instance, otitis media with effusion.
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Affiliation(s)
- Ofir Zavdy
- Department of Otolaryngology, Head and Neck Surgery, Rabin Medical Center and Schneider Children's Medical Center of Israel, Petach Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Leah Fostick
- Department of Communication Disorders, Ariel University, Ariel, Israel
| | - Nir Fink
- Department of Communication Disorders, Ariel University, Ariel, Israel
| | - Shir Danin
- Department of Communication Disorders, Ariel University, Ariel, Israel
| | - Aviya Levin
- Department of Communication Disorders, Ariel University, Ariel, Israel
| | - Noga Lipschitz
- Department of Otolaryngology, Head and Neck Surgery, Rabin Medical Center and Schneider Children's Medical Center of Israel, Petach Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ohad Hilly
- Department of Otolaryngology, Head and Neck Surgery, Rabin Medical Center and Schneider Children's Medical Center of Israel, Petach Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Communication Disorders, Ariel University, Ariel, Israel
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Valzolgher C, Todeschini M, Verdelet G, Gatel J, Salemme R, Gaveau V, Truy E, Farnè A, Pavani F. Adapting to altered auditory cues: Generalization from manual reaching to head pointing. PLoS One 2022; 17:e0263509. [PMID: 35421095 PMCID: PMC9009652 DOI: 10.1371/journal.pone.0263509] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 01/21/2022] [Indexed: 12/02/2022] Open
Abstract
Localising sounds means having the ability to process auditory cues deriving from the interplay among sound waves, the head and the ears. When auditory cues change because of temporary or permanent hearing loss, sound localization becomes difficult and uncertain. The brain can adapt to altered auditory cues throughout life and multisensory training can promote the relearning of spatial hearing skills. Here, we study the training potentials of sound-oriented motor behaviour to test if a training based on manual actions toward sounds can learning effects that generalize to different auditory spatial tasks. We assessed spatial hearing relearning in normal hearing adults with a plugged ear by using visual virtual reality and body motion tracking. Participants performed two auditory tasks that entail explicit and implicit processing of sound position (head-pointing sound localization and audio-visual attention cueing, respectively), before and after having received a spatial training session in which they identified sound position by reaching to auditory sources nearby. Using a crossover design, the effects of the above-mentioned spatial training were compared to a control condition involving the same physical stimuli, but different task demands (i.e., a non-spatial discrimination of amplitude modulations in the sound). According to our findings, spatial hearing in one-ear plugged participants improved more after reaching to sound trainings rather than in the control condition. Training by reaching also modified head-movement behaviour during listening. Crucially, the improvements observed during training generalize also to a different sound localization task, possibly as a consequence of acquired and novel head-movement strategies.
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Affiliation(s)
- Chiara Valzolgher
- Integrative, Multisensory, Perception, Action and Cognition Team (IMPACT), Lyon Neuroscience Research Center, Lyon, France
- Center for Mind/Brain Sciences—CIMeC, University of Trento, Trento, Italy
| | - Michela Todeschini
- Department of Psychology and Cognitive Sciences (DiPSCo), University of Trento, Trento, Italy
| | - Gregoire Verdelet
- Integrative, Multisensory, Perception, Action and Cognition Team (IMPACT), Lyon Neuroscience Research Center, Lyon, France
- Neuroimmersion, Lyon Neuroscience Research Center, Lyon, France
| | | | - Romeo Salemme
- Integrative, Multisensory, Perception, Action and Cognition Team (IMPACT), Lyon Neuroscience Research Center, Lyon, France
- Neuroimmersion, Lyon Neuroscience Research Center, Lyon, France
| | - Valerie Gaveau
- Integrative, Multisensory, Perception, Action and Cognition Team (IMPACT), Lyon Neuroscience Research Center, Lyon, France
- University of Lyon 1, Villeurbanne, France
| | - Eric Truy
- Hospices Civils de Lyon, Lyon, France
| | - Alessandro Farnè
- Integrative, Multisensory, Perception, Action and Cognition Team (IMPACT), Lyon Neuroscience Research Center, Lyon, France
- Center for Mind/Brain Sciences—CIMeC, University of Trento, Trento, Italy
- Neuroimmersion, Lyon Neuroscience Research Center, Lyon, France
| | - Francesco Pavani
- Integrative, Multisensory, Perception, Action and Cognition Team (IMPACT), Lyon Neuroscience Research Center, Lyon, France
- Center for Mind/Brain Sciences—CIMeC, University of Trento, Trento, Italy
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40
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Walsh R, Reath J, Gunasekera H, Leach A, Kong K, Askew D, Girosi F, Hu W, Usherwood T, Lujic S, Spurling G, Morris P, Watego C, Harkus S, Woodall C, Tyson C, Campbell L, Hussey S, Abbott P. INFLATE: a protocol for a randomised controlled trial comparing nasal balloon autoinflation to no nasal balloon autoinflation for otitis media with effusion in Aboriginal and Torres Strait Islander children. Trials 2022; 23:309. [PMID: 35421984 PMCID: PMC9009496 DOI: 10.1186/s13063-022-06145-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 03/04/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Otitis media with effusion (OME) is common and occurs at disproportionately higher rates among Indigenous children. Left untreated, OME can negatively affect language, development, learning, and health and wellbeing throughout the life-course. Currently, OME care includes observation for 3 months followed by consideration of surgical ventilation tube insertion. The use of a non-invasive, low-cost nasal balloon autoinflation device has been found beneficial in other populations but has not been investigated among Aboriginal and Torres Strait Islander children. METHODS/DESIGN This multi-centre, open-label, randomised controlled trial will determine the effectiveness of nasal balloon autoinflation compared to no nasal balloon autoinflation, for the treatment of OME among Aboriginal and Torres Strait Islander children in Australia. Children aged 3-16 years with unilateral or bilateral OME are being recruited from Aboriginal Health Services and the community. The primary outcome is the proportion of children showing tympanometric improvement of OME at 1 month. Improvement is defined as a change from bilateral type B tympanograms to at least one type A or C1 tympanogram, or from unilateral type B tympanogram to type A or C1 tympanogram in the index ear, without deterioration (type A or C1 to type C2, C3, or B tympanogram) in the contralateral ear. A sample size of 340 children (170 in each group) at 1 month will detect an absolute difference of 15% between groups with 80% power at 5% significance. Anticipating a 15% loss to follow-up, 400 children will be randomised. The primary analysis will be by intention to treat. Secondary outcomes include tympanometric changes at 3 and 6 months, hearing at 3 months, ear health-related quality of life (OMQ-14), and cost-effectiveness. A process evaluation including perspectives of parents or carers, health care providers, and researchers on trial implementation will also be undertaken. DISCUSSION INFLATE will answer the important clinical question of whether nasal balloon autoinflation is an effective and acceptable treatment for Aboriginal and Torres Strait Islander children with OME. INFLATE will help fill the evidence gap for safe, low-cost, accessible OME therapies. TRIAL REGISTRATION Australia New Zealand Clinical Trials Registry ACTRN12617001652369 . Registered on 22 December 2017. The Australia New Zealand Clinical Trials Registry is a primary registry of the WHO ICTRP network and includes all items from the WHO Trial Registration data set. Retrospective registration.
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Affiliation(s)
- Robyn Walsh
- School of Medicine, Western Sydney University, Sydney, Australia
| | - Jennifer Reath
- School of Medicine, Western Sydney University, Sydney, Australia
| | | | - Amanda Leach
- Menzies School of Health Research, Darwin, Australia
| | - Kelvin Kong
- School of Medicine and Public Health, The University of Newcastle, Newcastle, Australia
| | - Deborah Askew
- Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - Federico Girosi
- School of Medicine, Western Sydney University, Sydney, Australia
| | - Wendy Hu
- School of Medicine, Western Sydney University, Sydney, Australia
| | - Timothy Usherwood
- Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Sanja Lujic
- Centre for Big Data Research in Health, The University of New South Wales, Sydney, Australia
| | - Geoffrey Spurling
- Faculty of Medicine, The University of Queensland, Brisbane, Australia
- Southern Queensland Centre of Excellence in Aboriginal and Torres Strait Islander Primary Health Care (Inala Indigenous Health Service) Queensland Health, Brisbane, Australia
| | - Peter Morris
- Menzies School of Health Research, Darwin, Australia
| | - Chelsea Watego
- Faculty of Health, Queensland University of Technology, Brisbane, Australia
| | | | | | - Claudette Tyson
- Faculty of Health, Queensland University of Technology, Brisbane, Australia
| | | | - Sylvia Hussey
- Townsville Aboriginal and Islander Health Service, Townsville, Australia
| | - Penelope Abbott
- School of Medicine, Western Sydney University, Sydney, Australia.
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41
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Russo FY, De Seta D, Orlando MP, Ralli M, Cammeresi MG, Greco A, de Vincentiis M, Ruoppolo G, Mancini P, Turchetta R. Hearing attention and quality of listening in children with unilateral hearing loss with and without hearing aid. ACTA OTORHINOLARYNGOLOGICA ITALICA 2022; 42:169-175. [PMID: 35612509 PMCID: PMC9131998 DOI: 10.14639/0392-100x-n1746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 10/18/2021] [Indexed: 11/23/2022]
Abstract
Objective Methods Results Conclusions
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42
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Arras T, Snapp H, Sangen A, Snels C, Kuntz I, Theunen T, Kheirkhah K, Zarowski A, Wesarg T, van Wieringen A, Agterberg MJH. Instant improvement in monaural spatial hearing abilities through cognitive feedback. Exp Brain Res 2022; 240:1357-1369. [PMID: 35238954 PMCID: PMC9038864 DOI: 10.1007/s00221-022-06333-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 02/09/2022] [Indexed: 11/04/2022]
Abstract
Several studies report that sound localization performance of acute and chronic monauralized normal-hearing listeners can improve through training. Typically, training sessions are administered daily for several days or weeks. While this intensive training is effective, it may also be that monaural localization abilities improve instantly after providing explicit top-down information about the direction dependent change in timbre and level. The aim of the present study was to investigate whether cognitive feedback (i.e., top-down information) could instantly improve sound localization in naive acutely monauralized listeners. Forty-three normal-hearing listeners (experimental group), divided over five different centers, were tested. Two control groups, consisting of, respectively, nine and eleven normal-hearing listeners, were tested in one center. Broadband sounds (0.5-20 kHz) were presented from visible loudspeakers, positioned in azimuth (- 90° to 90°). Participants in the experimental group received explicit information about the noticeable difference in timbre and the poor localization in the monauralized listening condition, resulting in an instant improvement in sound localization abilities. With subsequent roving of stimulus level (20 dB), sound localization performance deteriorated immediately. The reported improvement is related to the context of the localization test. The results provide important implications for studies investigating sound localization in a clinical setting, especially during closed-set testing, and indicate the importance of top-down information.
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Affiliation(s)
- Tine Arras
- Department of Neurosciences, Experimental ORL, KU Leuven, University of Leuven, Leuven, Belgium
| | - Hillary Snapp
- Department of Otolaryngology, University of Miami, Miami, FL, USA
| | - Anouk Sangen
- Department of Neurosciences, Experimental ORL, KU Leuven, University of Leuven, Leuven, Belgium
| | - Chantal Snels
- Department of Otorhinolaryngology, Donders Institute for Brain, Cognition and Behaviour, Radboudumc, Nijmegen, The Netherlands.,Department of Otorhinolaryngology, University Ghent, Ghent, Belgium
| | - Iris Kuntz
- Department of Otorhinolaryngology-Head and Neck Surgery, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, Germany
| | - Tinne Theunen
- ENT Department Sint-Augustinus Antwerp, European Institute For ORL, Antwerp, Belgium
| | - Kiana Kheirkhah
- Department of Biophysics, Donders Institute for Brain, Cognition and Behaviour, Radboud University, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Andrzej Zarowski
- ENT Department Sint-Augustinus Antwerp, European Institute For ORL, Antwerp, Belgium
| | - Thomas Wesarg
- Department of Otorhinolaryngology-Head and Neck Surgery, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, Germany
| | - Astrid van Wieringen
- Department of Neurosciences, Experimental ORL, KU Leuven, University of Leuven, Leuven, Belgium
| | - Martijn J H Agterberg
- Department of Otorhinolaryngology, Donders Institute for Brain, Cognition and Behaviour, Radboudumc, Nijmegen, The Netherlands. .,Department of Biophysics, Donders Institute for Brain, Cognition and Behaviour, Radboud University, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands.
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43
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Liu J, Huang X, Zhang J. Unilateral Conductive Hearing Loss Disrupts the Developmental Refinement of Binaural Processing in the Rat Primary Auditory Cortex. Front Neurosci 2021; 15:762337. [PMID: 34867170 PMCID: PMC8640238 DOI: 10.3389/fnins.2021.762337] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 10/20/2021] [Indexed: 11/23/2022] Open
Abstract
Binaural hearing is critically important for the perception of sound spatial locations. The primary auditory cortex (AI) has been demonstrated to be necessary for sound localization. However, after hearing onset, how the processing of binaural cues by AI neurons develops, and how the binaural processing of AI neurons is affected by reversible unilateral conductive hearing loss (RUCHL), are not fully elucidated. Here, we determined the binaural processing of AI neurons in four groups of rats: postnatal day (P) 14–18 rats, P19–30 rats, P57–70 adult rats, and RUCHL rats (P57–70) with RUCHL during P14–30. We recorded the responses of AI neurons to both monaural and binaural stimuli with variations in interaural level differences (ILDs) and average binaural levels. We found that the monaural response types, the binaural interaction types, and the distributions of the best ILDs of AI neurons in P14–18 rats are already adult-like. However, after hearing onset, there exist developmental refinements in the binaural processing of AI neurons, which are exhibited by the increase in the degree of binaural interaction, and the increase in the sensitivity and selectivity to ILDs. RUCHL during early hearing development affects monaural response types, decreases the degree of binaural interactions, and decreases both the selectivity and sensitivity to ILDs of AI neurons in adulthood. These new evidences help us to understand the refinements and plasticity in the binaural processing of AI neurons during hearing development, and might enhance our understanding in the neuronal mechanism of developmental changes in auditory spatial perception.
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Affiliation(s)
- Jing Liu
- Key Laboratory of Brain Functional Genomics, Ministry of Education, NYU-ECNU Institute of Brain and Cognitive Science at NYU Shanghai, School of Life Sciences, East China Normal University, Shanghai, China
| | - Xinyi Huang
- Key Laboratory of Brain Functional Genomics, Ministry of Education, NYU-ECNU Institute of Brain and Cognitive Science at NYU Shanghai, School of Life Sciences, East China Normal University, Shanghai, China
| | - Jiping Zhang
- Key Laboratory of Brain Functional Genomics, Ministry of Education, NYU-ECNU Institute of Brain and Cognitive Science at NYU Shanghai, School of Life Sciences, East China Normal University, Shanghai, China
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44
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Thornton JL, Anbuhl KL, Tollin DJ. Temporary Unilateral Hearing Loss Impairs Spatial Auditory Information Processing in Neurons in the Central Auditory System. Front Neurosci 2021; 15:721922. [PMID: 34790088 PMCID: PMC8591253 DOI: 10.3389/fnins.2021.721922] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 09/29/2021] [Indexed: 11/18/2022] Open
Abstract
Temporary conductive hearing loss (CHL) can lead to hearing impairments that persist beyond resolution of the CHL. In particular, unilateral CHL leads to deficits in auditory skills that rely on binaural input (e.g., spatial hearing). Here, we asked whether single neurons in the auditory midbrain, which integrate acoustic inputs from the two ears, are altered by a temporary CHL. We introduced 6 weeks of unilateral CHL to young adult chinchillas via foam earplug. Following CHL removal and restoration of peripheral input, single-unit recordings from inferior colliculus (ICC) neurons revealed the CHL decreased the efficacy of inhibitory input to the ICC contralateral to the earplug and increased inhibitory input ipsilateral to the earplug, effectively creating a higher proportion of monaural responsive neurons than binaural. Moreover, this resulted in a ∼10 dB shift in the coding of a binaural sound location cue (interaural-level difference, ILD) in ICC neurons relative to controls. The direction of the shift was consistent with a compensation of the altered ILDs due to the CHL. ICC neuron responses carried ∼37% less information about ILDs after CHL than control neurons. Cochlear peripheral-evoked responses confirmed that the CHL did not induce damage to the auditory periphery. We find that a temporary CHL altered auditory midbrain neurons by shifting binaural responses to ILD acoustic cues, suggesting a compensatory form of plasticity occurring by at least the level of the auditory midbrain, the ICC.
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Affiliation(s)
- Jennifer L Thornton
- Department of Physiology and Biophysics, University of Colorado School of Medicine, Aurora, CO, United States
| | - Kelsey L Anbuhl
- Center for Neural Science, New York University, New York, NY, United States
| | - Daniel J Tollin
- Department of Physiology and Biophysics, University of Colorado School of Medicine, Aurora, CO, United States
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45
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Laugen NJ, Erixon E, Huttunen K, Mäki-Torkko E, Löfkvist U. Newborn Hearing Screening and Intervention in Children with Unilateral Hearing Impairment: Clinical Practices in Three Nordic Countries. J Clin Med 2021; 10:jcm10215152. [PMID: 34768671 PMCID: PMC8584845 DOI: 10.3390/jcm10215152] [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: 09/29/2021] [Revised: 10/26/2021] [Accepted: 10/28/2021] [Indexed: 12/20/2022] Open
Abstract
Studies have limitedly considered children with early-identified unilateral hearing impairment (UHI), and clinical practices regarding screening, diagnostics and habilitation in this group are rarely documented. In this study, routines for newborns with UHI from screening to diagnostics and habilitation were explored in Norway, Sweden and Finland. An online survey was sent to hospitals responsible for the hearing diagnostics of children requesting information about their practices regarding congenital UHI. Responses covered 95% of the children born in the three included countries. The results revealed large variations in ways of organising healthcare and in clinical decisions regarding hearing screening, diagnostics and habilitation of children with congenital UHI. Finally, implications for policy making and research are also discussed.
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Affiliation(s)
- Nina Jakhelln Laugen
- Department of Psychology, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
- Correspondence:
| | - Elsa Erixon
- Department of Surgical Sciences, Uppsala University, 75185 Uppsala, Sweden;
| | - Kerttu Huttunen
- Research Unit of Logopedics and Child Language Research Center, Faculty of Humanities, University of Oulu, 90014 Oulu, Finland;
- Department of Otorhinolaryngology, Head and Neck Surgery, Oulu University Hospital, 90220 Oulu, Finland
- Medical Research Center Oulu, University of Oulu, 90014 Oulu, Finland
| | - Elina Mäki-Torkko
- Audiological Research Centre, Faculty of Medicine and Health, 70182 Örebro, Sweden;
- School of Medical Sciences, Faculty of Medicine and Health, 70182 Örebro, Sweden
| | - Ulrika Löfkvist
- Department of Public Health and Caring Sciences, Uppsala University, 75122 Uppsala, Sweden;
- Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institute, 17177 Stockholm, Sweden
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46
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Kim GH, Aronoff JM. Using unilateral stimulation to create a reference for bilateral fusion judgments. JASA EXPRESS LETTERS 2021; 1:114401. [PMID: 34778874 PMCID: PMC8565497 DOI: 10.1121/10.0007058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 10/12/2021] [Indexed: 06/13/2023]
Abstract
Measuring binaural fusion can be challenging, especially with bilateral cochlear implant (CI) users. This study validated a technique of using unilateral stimulation to create a reference for measuring fusion. Seven bilateral CI users listened to stimuli randomly presented to the right, left, or both ears. Participants indicated the size, number, and location of the resulting image(s) they perceived. The participants had largely unitary, punctate percepts that were lateralized to the stimulated ear for unilateral stimuli. The image was centered but more diffuse when the stimuli were presented bilaterally. The results suggest unilateral stimuli can provide a reference for binaural fusion.
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Affiliation(s)
- Grace Hyerin Kim
- Speech and Hearing Science Department, University of Illinois at Urbana-Champaign, 901 S. 6thStreet, Champaign, Illinois 61801, USA ,
| | - Justin M Aronoff
- Speech and Hearing Science Department, University of Illinois at Urbana-Champaign, 901 S. 6thStreet, Champaign, Illinois 61801, USA ,
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47
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Kim JH, Shim L, Bahng J, Lee HJ. Proficiency in Using Level Cue for Sound Localization Is Related to the Auditory Cortical Structure in Patients With Single-Sided Deafness. Front Neurosci 2021; 15:749824. [PMID: 34707477 PMCID: PMC8542703 DOI: 10.3389/fnins.2021.749824] [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: 07/30/2021] [Accepted: 09/20/2021] [Indexed: 11/13/2022] Open
Abstract
Spatial hearing, which largely relies on binaural time/level cues, is a challenge for patients with asymmetric hearing. The degree of the deficit is largely variable, and better sound localization performance is frequently reported. Studies on the compensatory mechanism revealed that monaural level cues and monoaural spectral cues contribute to variable behavior in those patients who lack binaural spatial cues. However, changes in the monaural level cues have not yet been separately investigated. In this study, the use of the level cue in sound localization was measured using stimuli of 1 kHz at a fixed level in patients with single-sided deafness (SSD), the most severe form of asymmetric hearing. The mean absolute error (MAE) was calculated and related to the duration/age onset of SSD. To elucidate the biological correlate of this variable behavior, sound localization ability was compared with the cortical volume of the parcellated auditory cortex. In both SSD patients (n = 26) and normal controls with one ear acutely plugged (n = 23), localization performance was best on the intact ear side; otherwise, there was wide interindividual variability. In the SSD group, the MAE on the intact ear side was worse than that of the acutely plugged controls, and it deteriorated with longer duration/younger age at SSD onset. On the impaired ear side, MAE improved with longer duration/younger age at SSD onset. Performance asymmetry across lateral hemifields decreased in the SSD group, and the maximum decrease was observed with the most extended duration/youngest age at SSD onset. The decreased functional asymmetry in patients with right SSD was related to greater cortical volumes in the right posterior superior temporal gyrus and the left planum temporale, which are typically involved in auditory spatial processing. The study results suggest that structural plasticity in the auditory cortex is related to behavioral changes in sound localization when utilizing monaural level cues in patients with SSD.
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Affiliation(s)
- Ja Hee Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Hallym University College of Medicine, Chuncheon, South Korea.,Laboratory of Brain & Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, South Korea
| | - Leeseul Shim
- Laboratory of Brain & Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, South Korea
| | - Junghwa Bahng
- Department of Audiology and Speech-Language Pathology, Hallym University of Graduate Studies, Seoul, South Korea
| | - Hyo-Jeong Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Hallym University College of Medicine, Chuncheon, South Korea.,Laboratory of Brain & Cognitive Sciences for Convergence Medicine, Hallym University College of Medicine, Anyang, South Korea
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48
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McSweeny C, Cushing SL, Campos JL, Papsin BC, Gordon KA. Functional Consequences of Poor Binaural Hearing in Development: Evidence From Children With Unilateral Hearing Loss and Children Receiving Bilateral Cochlear Implants. Trends Hear 2021; 25:23312165211051215. [PMID: 34661482 PMCID: PMC8527588 DOI: 10.1177/23312165211051215] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Poor binaural hearing in children was hypothesized to contribute to related cognitive and
academic deficits. Children with unilateral hearing have normal hearing in one ear but no
access to binaural cues. Their cognitive and academic deficits could be unique from
children receiving bilateral cochlear implants (CIs) at young ages who have poor access to
spectral cues and impaired binaural sensitivity. Both groups are at risk for
vestibular/balance deficits which could further contribute to memory and learning
challenges. Eighty-eight children (43 male:45 female, aged 9.89 ± 3.40 years), grouped
by unilateral hearing loss (n = 20), bilateral CI
(n = 32), and typically developing (n = 36), completed a
battery of sensory, cognitive, and academic tests. Analyses revealed that children in both
hearing loss groups had significantly poorer skills (accounting for age) on most tests
than their normal hearing peers. Children with unilateral hearing loss had more asymmetric
speech perception than children with bilateral CIs (p < .0001) but
balance and language deficits (p = .0004, p < .0001,
respectively) were similar in the two hearing loss groups (p > .05).
Visuospatial memory deficits occurred in both hearing loss groups
(p = .02) but more consistently across tests in children with unilateral
hearing loss. Verbal memory was not significantly different than normal
(p > .05). Principal component analyses revealed deficits in a main
cluster of visuospatial memory, oral language, mathematics, and reading measures
(explaining 46.8% data variability). The remaining components revealed clusters of
self-reported hearing, balance and vestibular function, and speech perception deficits.
The findings indicate significant developmental impacts of poor binaural hearing in
children.
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Affiliation(s)
- Claire McSweeny
- Archie's Cochlear Implant Lab, 7979Hospital for Sick Children, Toronto, Ontario, Canada
| | - Sharon L Cushing
- Archie's Cochlear Implant Lab, 7979Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Otolaryngology, Head & Neck Surgery, Faculty of Medicine, University of Toronto, Ontario, Canada.,Department of Otolaryngology, Head & Neck Surgery, 7979Hospital for Sick Children, Toronto, Ontario, Canada
| | - Jennifer L Campos
- KITE-Toronto Rehabilitation Institute, Toronto, Ontario, Canada.,Department of Psychology, University of Toronto, Toronto, Ontario, Canada
| | - Blake C Papsin
- Archie's Cochlear Implant Lab, 7979Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Otolaryngology, Head & Neck Surgery, Faculty of Medicine, University of Toronto, Ontario, Canada.,Department of Otolaryngology, Head & Neck Surgery, 7979Hospital for Sick Children, Toronto, Ontario, Canada
| | - Karen A Gordon
- Archie's Cochlear Implant Lab, 7979Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Otolaryngology, Head & Neck Surgery, Faculty of Medicine, University of Toronto, Ontario, Canada
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49
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Asp F, Stokroos RJ, Agterberg MJH. Toward Optimal Care for Children With Congenital Unilateral Aural Atresia. Front Neurol 2021; 12:687070. [PMID: 34305795 PMCID: PMC8298319 DOI: 10.3389/fneur.2021.687070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 06/14/2021] [Indexed: 11/21/2022] Open
Affiliation(s)
- Filip Asp
- Scientific Center for Advanced Pediatric Audiology, Division of Ear, Nose, and Throat Diseases, Department of Clinical Science, Intervention and Technology Karolinska Institute, Stockholm, Sweden
| | - Robert J Stokroos
- Department of Otorhinolaryngology, Head and Neck Surgery, University Medical Center Utrecht, Utrecht, Netherlands.,University Medical Center (UMC) Utrecht Brain Center, Utrecht, Netherlands
| | - Martijn J H Agterberg
- Department of Otorhinolaryngology, Donders Institute for Brain, Cognition, and Behaviour, Radboud University Medical Centre Nijmegen, Nijmegen, Netherlands.,Department of Biophysics, Donders Institute for Brain, Cognition, and Behaviour, Radboud University Nijmegen, Nijmegen, Netherlands
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Siegbahn M, Engmér Berglin C, Hultcrantz M, Asp F. Adults with unilateral congenital ear canal atresia - sound localization ability and recognition of speech in competing speech in unaided condition. Acta Otolaryngol 2021; 141:689-694. [PMID: 34057381 DOI: 10.1080/00016489.2021.1921843] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND Individuals with unilateral hearing loss show poor spatial hearing, but individual variability is high. AIMS/OBJECTIVES To investigate if the degree of hearing loss in unilateral ear canal atresia affects horizontal sound localization and speech recognition. MATERIALS AND METHODS Twelve subjects with unilateral ear canal atresia without childhood hearing intervention. Previously published data from eight normal-hearing subjects in normal binaural as well as experimentally induced unilateral hearing loss served as a reference. Horizontal sound localization and recognition of speech in spatially separate competing speech were assessed. RESULTS Linear regression analysis demonstrated a relationship between sound localization accuracy (SLA) and the air conduction pure tone average of the atretic ear (r = 0.85, p=.007). The large proportion of variability in SLA (72%) explained by the degree of hearing loss of the atretic ear indicates that binaural processing is possible. SLA was worse than for normal hearing individuals (p<.0001), and comparable to moderate simulated unilateral hearing loss (p=.13). Speech discrimination was significantly worse than normal (p<.0001) and not dependent on degree of hearing loss of the atretic ear. CONCLUSIONS AND SIGNIFICANCE Individuals with congenital unilateral ear canal atresia show impaired horizontal SLA and recognition of speech in competing speech.
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Affiliation(s)
- Malin Siegbahn
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
- Department of Otorhinolaryngology, Karolinska University Hospital, Stockholm, Sweden
| | - Cecilia Engmér Berglin
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
- Department of Otorhinolaryngology, Karolinska University Hospital, Stockholm, Sweden
| | - Malou Hultcrantz
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Filip Asp
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
- Department of Otorhinolaryngology, Karolinska University Hospital, Stockholm, Sweden
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