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Xie Z, Gaskins CR, Tinnemore AR, Shader MJ, Gordon-Salant S, Anderson S, Goupell MJ. Spectral degradation and carrier sentences increase age-related temporal processing deficits in a cue-specific manner. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2024; 155:3983-3994. [PMID: 38934563 PMCID: PMC11213620 DOI: 10.1121/10.0026434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 05/09/2024] [Accepted: 05/25/2024] [Indexed: 06/28/2024]
Abstract
Advancing age is associated with decreased sensitivity to temporal cues in word segments, particularly when target words follow non-informative carrier sentences or are spectrally degraded (e.g., vocoded to simulate cochlear-implant stimulation). This study investigated whether age, carrier sentences, and spectral degradation interacted to cause undue difficulty in processing speech temporal cues. Younger and older adults with normal hearing performed phonemic categorization tasks on two continua: a Buy/Pie contrast with voice onset time changes for the word-initial stop and a Dish/Ditch contrast with silent interval changes preceding the word-final fricative. Target words were presented in isolation or after non-informative carrier sentences, and were unprocessed or degraded via sinewave vocoding (2, 4, and 8 channels). Older listeners exhibited reduced sensitivity to both temporal cues compared to younger listeners. For the Buy/Pie contrast, age, carrier sentence, and spectral degradation interacted such that the largest age effects were seen for unprocessed words in the carrier sentence condition. This pattern differed from the Dish/Ditch contrast, where reducing spectral resolution exaggerated age effects, but introducing carrier sentences largely left the patterns unchanged. These results suggest that certain temporal cues are particularly susceptible to aging when placed in sentences, likely contributing to the difficulties of older cochlear-implant users in everyday environments.
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Affiliation(s)
- Zilong Xie
- School of Communication Science and Disorders, Florida State University, Tallahassee, Florida 32306, USA
| | - Casey R Gaskins
- Department of Hearing and Speech Sciences, University of Maryland, College Park, Maryland 20742, USA
| | - Anna R Tinnemore
- Department of Hearing and Speech Sciences, University of Maryland, College Park, Maryland 20742, USA
- Neuroscience and Cognitive Science Program, University of Maryland, College Park, Maryland 20742, USA
| | - Maureen J Shader
- Department of Speech, Language, and Hearing Sciences, Purdue University, West Lafayette, Indiana 47907, USA
| | - Sandra Gordon-Salant
- Department of Hearing and Speech Sciences, University of Maryland, College Park, Maryland 20742, USA
- Neuroscience and Cognitive Science Program, University of Maryland, College Park, Maryland 20742, USA
| | - Samira Anderson
- Department of Hearing and Speech Sciences, University of Maryland, College Park, Maryland 20742, USA
- Neuroscience and Cognitive Science Program, University of Maryland, College Park, Maryland 20742, USA
| | - Matthew J Goupell
- Department of Hearing and Speech Sciences, University of Maryland, College Park, Maryland 20742, USA
- Neuroscience and Cognitive Science Program, University of Maryland, College Park, Maryland 20742, USA
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McFarlane KA, Sanchez JT. Effects of Temporal Processing on Speech-in-Noise Perception in Middle-Aged Adults. BIOLOGY 2024; 13:371. [PMID: 38927251 PMCID: PMC11200514 DOI: 10.3390/biology13060371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 06/28/2024]
Abstract
Auditory temporal processing is a vital component of auditory stream segregation, or the process in which complex sounds are separated and organized into perceptually meaningful objects. Temporal processing can degrade prior to hearing loss, and is suggested to be a contributing factor to difficulties with speech-in-noise perception in normal-hearing listeners. The current study tested this hypothesis in middle-aged adults-an under-investigated cohort, despite being the age group where speech-in-noise difficulties are first reported. In 76 participants, three mechanisms of temporal processing were measured: peripheral auditory nerve function using electrocochleography, subcortical encoding of periodic speech cues (i.e., fundamental frequency; F0) using the frequency following response, and binaural sensitivity to temporal fine structure (TFS) using a dichotic frequency modulation detection task. Two measures of speech-in-noise perception were administered to explore how contributions of temporal processing may be mediated by different sensory demands present in the speech perception task. This study supported the hypothesis that temporal coding deficits contribute to speech-in-noise difficulties in middle-aged listeners. Poorer speech-in-noise perception was associated with weaker subcortical F0 encoding and binaural TFS sensitivity, but in different contexts, highlighting that diverse aspects of temporal processing are differentially utilized based on speech-in-noise task characteristics.
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Affiliation(s)
- Kailyn A. McFarlane
- Roxelyn and Richard Pepper Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL 60208, USA;
| | - Jason Tait Sanchez
- Roxelyn and Richard Pepper Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL 60208, USA;
- Knowles Hearing Center, Northwestern University, Evanston, IL 60208, USA
- Department of Neurobiology, Northwestern University, Evanston, IL 60208, USA
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Hlayisi VG, Sekoto LV. Understanding identity construction among deaf adolescents and young adults: implications for the delivery of person and family-centered care in audiological rehabilitation. FRONTIERS IN REHABILITATION SCIENCES 2023; 4:1228116. [PMID: 38028156 PMCID: PMC10646389 DOI: 10.3389/fresc.2023.1228116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023]
Abstract
Introduction The provision of holistic person and family-centered care in the audiological rehabilitation of adolescents and young adults (AYA) requires in-depth consideration of identity construction. The purpose of this research study was to describe the lived experience of identity construction among deaf AYA. The thoughts, perceptions, and feelings of AYA on their identity and the processes underlying the construction of identity, with a focus on navigating disability, social relations and roles, community assimilation and self-perception were explored. Methods A qualitative interpretive phenomenological approach was adopted. Participants were a purposive sample of 5 AYA, aged 15 to 19 years. Participants had moderate to profound deafness and were enrolled in schools for the deaf where they partook in semi-structured phenomenological conversations, detailing their lived experiences with identity construction. Results The superordinate themes of creating a self-concept, belonging, stress and being deaf emerged from participants' narratives. Identity construction occurs concurrently at several levels. At the personal level, AYA create self-conceived ideals of who they are. At relational level, identity is fostered through person-to-person and person-to-group interactions. At societal level, AYA navigate inherent challenges with hearing impairment and their positionality as deaf individuals. Conclusions Understanding the nuances of identity construction gives insights for further research and highlights the self-ascribed identity domains and related psychosocial variables that appeal to person and family-centered care, uncovering opportunities and barriers to successful delivery. Findings have implications for the transitional care of deaf AYA that is responsive to their needs.
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Affiliation(s)
- Vera-Genevey Hlayisi
- Department of Health and Rehabilitation Sciences, Division of Communication Sciences and Disorders, University of Cape Town, Cape Town, South Africa
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Oh M, Oh EJ, Jung B, Yoo MH, Yoo SY, Jung DJ, Lee KY. Cochlear Implantation in the Elderly: Speech Performance, Associated Factor, Complication, and Surgical Safety. J Audiol Otol 2023; 27:205-211. [PMID: 37872754 PMCID: PMC10603278 DOI: 10.7874/jao.2023.00136] [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: 05/01/2023] [Revised: 05/19/2023] [Accepted: 05/26/2023] [Indexed: 10/25/2023] Open
Abstract
BACKGROUND AND OBJECTIVES The guidelines for cochlear implantation (CIs) are expanding, and the number of CI procedures performed on the elderly is increasing. The purpose of this study was to analyze the results and safety of cochlear implantation in the elderly, as well as to evaluate the predictive factors on CI outcomes. SUBJECTS AND METHODS The study included 56 patients aged ≥40 years, who received CIs between 2009 and 2020. They were divided into two groups: 27 younger adults (40-64 years) and 29 elderly (>64 years). The study compared their pre- and postoperative speech perception and category of auditory performance (CAP) scores, surgical complications, and hospitalization periods. It also evaluated associated factors in the elderly group by examining categorical and continuous variables and postoperative CAP score. RESULTS There was a significant improvement in speech recognition tests (both word and sentence) and CAP scores in both groups compared to the pre-implantation scores (p<0.001). Postoperative results were slightly lower in the elderly group than in younger adults for sentence recognition and CAP scores, except for word recognition. No significant associated factors were found on postoperative CAP scores, except for etiology. Postoperative CAP significantly improved in the sudden hearing loss group compared to the groups with other etiologies (p=0.045). The elderly group had more comorbidities than that in the younger adult group (p=0.026), but there were no significant differences in postoperative complications and hospitalization periods. CONCLUSIONS While speech recognition and CAP scores were relatively lower in the elderly group compared to the younger adults, the elderly group showed significant improvements in audiological results after CI. Moreover, CI was safe and well tolerated in elderly patients.
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Affiliation(s)
- Minji Oh
- Department of Otorhinolaryngology-Head and Neck Surgery, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Eun Jung Oh
- Department of Otorhinolaryngology-Head and Neck Surgery, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Boseung Jung
- Department of Otorhinolaryngology-Head and Neck Surgery, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Myung Hoon Yoo
- Department of Otorhinolaryngology-Head and Neck Surgery, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | | | - Da Jung Jung
- Department of Otorhinolaryngology-Head and Neck Surgery, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Kyu-Yup Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
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Xu M, Shao J, Liu B, Wang L, Ding H, Zhang Y. Aging-Related Decline in Phonated and Whispered Speech Perception Not Compensated For by Increased Duration and Intensity: Evidence From Mandarin-Speaking Adult Listeners. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2023; 66:735-749. [PMID: 36749845 DOI: 10.1044/2022_jslhr-22-00158] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
PURPOSE This study aimed to examine how aging and modifications of critical acoustic parameters may affect the perception of whispered speech as a degraded signal. METHOD Forty Mandarin-speaking adults were included in the study. Part 1 of the study compared the perception of Mandarin lexical tones, vowels, and syllables in older and younger adults in whispered versus phonated speech conditions. Parts 2 and 3 further examined how modification of duration and intensity cues contributed to the perceptual outcomes. RESULTS Perception of whispered tones was compromised in older and younger adults. Older adults identified lexical tones less accurately than their younger counterparts, particularly for phonated T2 and T3 and whispered T3. Aging also negatively affected the vowel identification of /i, u/ in the whispered condition. Syllable-level accuracy was largely dependent on the accuracy of lexical tones and vowels. Furthermore, reduced duration led to the decreased accuracy of phonated T3 and whispered T2 and T3 but increased accuracy of phonated T4. Reduced intensity lowered the recognition accuracy for phonated vowels /i, ɤ, o, y/ in older adults and /i, u/ in younger adults, and it also lowered the accuracy of whispered vowels /a, ɤ/ in older adults. Contrary to our expectation, increased duration and intensity did not improve older adults' speech perception in either phonated or whispered conditions. CONCLUSIONS The results suggest that aging adversely affected speech perception in both phonated and whispered conditions with more challenges in identifying whispered speech for older adults. While older adults' diminished performance may be potentially due to problems with processing the degraded temporal and spectral information of the target speech sounds, it cannot be simply compensated for by increasing the duration and intensity of the target sounds beyond the audible level.
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Affiliation(s)
- Min Xu
- Institute of Corpus Studies and Applications, Shanghai International Studies University, China
| | - Jing Shao
- Department of English Language and Literature, Hong Kong Baptist University, China
| | - Boquan Liu
- School of Humanities, Shanghai Jiao Tong University, China
| | - Lan Wang
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, China
| | - Hongwei Ding
- Speech-Language-Hearing Center, School of Foreign Languages, Shanghai Jiao Tong University, China
| | - Yang Zhang
- Department of Speech-Language-Hearing Sciences & Masonic Institute for the Developing Brain, University of Minnesota, Minneapolis
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Moulin A. Ear Asymmetry and Contextual Influences on Speech Perception in Hearing-Impaired Patients. Front Neurosci 2022; 16:801699. [PMID: 35368258 PMCID: PMC8974937 DOI: 10.3389/fnins.2022.801699] [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: 10/25/2021] [Accepted: 01/17/2022] [Indexed: 11/13/2022] Open
Abstract
The left hemisphere preference for verbal stimuli is well known, with a right ear (RE) advantage obtained when competing verbal stimuli are presented simultaneously, at comfortable intensities, to both ears. Speech perception involves not only the processing of acoustic peripheral information but also top–down contextual influences, filling the gaps in the incoming information that is particularly degraded in hearing-impaired individuals. This study aimed to analyze the potential asymmetry of those contextual influences on a simple speech perception task in hearing-impaired patients in light of hemispheric asymmetry. Contextual influences on disyllabic word perception scores of 60 hearing-impaired patients were compared between left ear (LE) and RE, in a balanced design, involving two repetitions of the same task. Results showed a significantly greater contextual influence on the RE versus the LE and, for the second repetition versus the first one, without any interaction between the two. Furthermore, the difference in contextual influences between RE and LE increased significantly with the RE advantage measured by a dichotic listening test in the absence of any significant correlation with hearing threshold asymmetry. Lastly, the contextual influence asymmetry decreased significantly as age increased, which was mainly due to a greater increase, with age, of contextual influences on the LE versus the RE. Those results agree with the literature reporting a relative right-shift of hemispheric asymmetry observed with age in speech in noise perception tasks in normal hearing subjects and the clinical reports of generally better audiometric speech scores obtained in RE versus LE.
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Land R, Kral A. Temporal acuity is preserved in the auditory midbrain of aged mice. Neurobiol Aging 2022; 110:47-60. [PMID: 34852306 DOI: 10.1016/j.neurobiolaging.2021.10.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 09/16/2021] [Accepted: 10/10/2021] [Indexed: 11/17/2022]
Abstract
Impaired temporal resolution of the central auditory system has long been suggested to contribute to speech understanding deficits in the elderly. However, it has been difficult to differentiate between direct age-related central deficits and indirect effects of confounding peripheral age-related hearing loss on temporal resolution. To differentiate this, we measured temporal acuity in the inferior colliculus (IC) of aged CBA/J and C57BL/6 mice, as a model of aging with and without concomitant hearing loss. We used two common measures of auditory temporal processing: gap detection as a measure of temporal fine structure and amplitude-modulated noise as a measure of envelope sensitivity. Importantly, auditory temporal acuity remained precise in the IC of old CBA/J mice when no or only minimal age-related hearing loss was present. In contrast, temporal acuity was only indirectly reduced by the presence of age-related hearing loss in aged C57BL/6 mice, not by affecting the brainstem precision, but by affecting the signal-to-noise ratio of the neuronal activity in the IC. This demonstrates that indirect effects of age-related peripheral hearing loss likely remain an important factor for temporal processing in aging in comparison to 'pure' central auditory decline itself. It also draws attention to the issue that the threshold difference between 'nearly normal' or 'clinically normal' hearing aging subjects in comparison to normal hearing young subjects still can have indirect effects on central auditory neural representations of temporal processing.
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Affiliation(s)
- Rüdiger Land
- Department of Experimental Otology, Institute for Audioneurotechnology, Hannover Medical School, Hannover, Lower Saxony, Germany.
| | - Andrej Kral
- Department of Experimental Otology, Institute for Audioneurotechnology, Hannover Medical School, Hannover, Lower Saxony, Germany; Department of Biomedical Sciences, School of Medicine and Health Sciences, Macquarie University, Sydney, NSW, Australia
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Homma NY, Bajo VM. Lemniscal Corticothalamic Feedback in Auditory Scene Analysis. Front Neurosci 2021; 15:723893. [PMID: 34489635 PMCID: PMC8417129 DOI: 10.3389/fnins.2021.723893] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 07/30/2021] [Indexed: 12/15/2022] Open
Abstract
Sound information is transmitted from the ear to central auditory stations of the brain via several nuclei. In addition to these ascending pathways there exist descending projections that can influence the information processing at each of these nuclei. A major descending pathway in the auditory system is the feedback projection from layer VI of the primary auditory cortex (A1) to the ventral division of medial geniculate body (MGBv) in the thalamus. The corticothalamic axons have small glutamatergic terminals that can modulate thalamic processing and thalamocortical information transmission. Corticothalamic neurons also provide input to GABAergic neurons of the thalamic reticular nucleus (TRN) that receives collaterals from the ascending thalamic axons. The balance of corticothalamic and TRN inputs has been shown to refine frequency tuning, firing patterns, and gating of MGBv neurons. Therefore, the thalamus is not merely a relay stage in the chain of auditory nuclei but does participate in complex aspects of sound processing that include top-down modulations. In this review, we aim (i) to examine how lemniscal corticothalamic feedback modulates responses in MGBv neurons, and (ii) to explore how the feedback contributes to auditory scene analysis, particularly on frequency and harmonic perception. Finally, we will discuss potential implications of the role of corticothalamic feedback in music and speech perception, where precise spectral and temporal processing is essential.
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Affiliation(s)
- Natsumi Y. Homma
- Center for Integrative Neuroscience, University of California, San Francisco, San Francisco, CA, United States
- Coleman Memorial Laboratory, Department of Otolaryngology – Head and Neck Surgery, University of California, San Francisco, San Francisco, CA, United States
| | - Victoria M. Bajo
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
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Xie Z, Stakhovskaya O, Goupell MJ, Anderson S. Aging Effects on Cortical Responses to Tones and Speech in Adult Cochlear-Implant Users. J Assoc Res Otolaryngol 2021; 22:719-740. [PMID: 34231111 DOI: 10.1007/s10162-021-00804-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 05/19/2021] [Indexed: 11/29/2022] Open
Abstract
Age-related declines in auditory temporal processing contribute to speech understanding difficulties of older adults. These temporal processing deficits have been established primarily among acoustic-hearing listeners, but the peripheral and central contributions are difficult to separate. This study recorded cortical auditory evoked potentials from younger to middle-aged (< 65 years) and older (≥ 65 years) cochlear-implant (CI) listeners to assess age-related changes in temporal processing, where cochlear processing is bypassed in this population. Aging effects were compared to age-matched normal-hearing (NH) listeners. Advancing age was associated with prolonged P2 latencies in both CI and NH listeners in response to a 1000-Hz tone or a syllable /da/, and with prolonged N1 latencies in CI listeners in response to the syllable. Advancing age was associated with larger N1 amplitudes in NH listeners. These age-related changes in latency and amplitude were independent of stimulus presentation rate. Further, CI listeners exhibited prolonged N1 and P2 latencies and smaller P2 amplitudes than NH listeners. Thus, aging appears to degrade some aspects of auditory temporal processing when peripheral-cochlear contributions are largely removed, suggesting that changes beyond the cochlea may contribute to age-related temporal processing deficits.
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Affiliation(s)
- Zilong Xie
- Department of Hearing and Speech, University of Kansas Medical Center, Kansas City, KS, 66160, USA.
| | - Olga Stakhovskaya
- Department of Hearing and Speech Sciences, University of Maryland, College Park, MD, 20742, USA
| | - Matthew J Goupell
- Department of Hearing and Speech Sciences, University of Maryland, College Park, MD, 20742, USA
| | - Samira Anderson
- Department of Hearing and Speech Sciences, University of Maryland, College Park, MD, 20742, USA
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Johnson KC, Xie Z, Shader MJ, Mayo PG, Goupell MJ. Effect of Chronological Age on Pulse Rate Discrimination in Adult Cochlear-Implant Users. Trends Hear 2021; 25:23312165211007367. [PMID: 34028313 PMCID: PMC8150454 DOI: 10.1177/23312165211007367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Cochlear-implant (CI) users rely heavily on temporal envelope cues to understand speech. Temporal processing abilities may decline with advancing age in adult CI users. This study investigated the effect of age on the ability to discriminate changes in pulse rate. Twenty CI users aged 23 to 80 years participated in a rate discrimination task. They attempted to discriminate a 35% rate increase from baseline rates of 100, 200, 300, 400, or 500 pulses per second. The stimuli were electrical pulse trains delivered to a single electrode via direct stimulation to an apical (Electrode 20), a middle (Electrode 12), or a basal location (Electrode 4). Electrically evoked compound action potential amplitude growth functions were recorded at each of those electrodes as an estimate of peripheral neural survival. Results showed that temporal pulse rate discrimination performance declined with advancing age at higher stimulation rates (e.g., 500 pulses per second) when compared with lower rates. The age-related changes in temporal pulse rate discrimination at higher stimulation rates persisted after statistical analysis to account for the estimated peripheral contributions from electrically evoked compound action potential amplitude growth functions. These results indicate the potential contributions of central factors to the limitations in temporal pulse rate discrimination ability associated with aging in CI users.
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Affiliation(s)
- Kelly C Johnson
- Department of Hearing and Speech Sciences, University of Maryland, College Park, United States
| | - Zilong Xie
- Department of Hearing and Speech, University of Kansas Medical Center, Kansas City, United States
| | - Maureen J Shader
- Department of Hearing and Speech Sciences, University of Maryland, College Park, United States.,Bionics Institute, Melbourne, Australia.,Department of Medical Bionics, The University of Melbourne, Melbourne, Australia
| | - Paul G Mayo
- Department of Hearing and Speech Sciences, University of Maryland, College Park, United States
| | - Matthew J Goupell
- Department of Hearing and Speech Sciences, University of Maryland, College Park, United States
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11
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Kurioka T, Sano H, Furuki S, Yamashita T. Effects of the Conductive Component of Hearing Loss on Speech Discrimination Ability. J Int Adv Otol 2021; 16:93-97. [PMID: 32209519 DOI: 10.5152/iao.2020.7870] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES Effects of decreasing auditory activity on speech discrimination ability are not fully understood. To investigate influence of decrease in auditory activity due to conductive and sensorineural components of hearing loss (HL) on speech discrimination ability. MATERIALS AND METHODS We retrospectively reviewed medical records of patients with suspected HL at Kitasato University Hospital in 2017 and 2018. Patients were divided according to pure-tone audiometry findings: no HL (N-HL), conductive HL (C-HL), sensorineural HL (S-HL), and mixed HL (M-HL) groups. RESULTS In total, 149 patients (224 ears) were eligible. The maximum speech discrimination score (SDSmax) for all ears significantly negatively correlated with age (r = -0.29, p<0.0001) and bone conduction (BC) threshold (r = -0.55, p<0.0001). For patients aged <50 years in N-HL and C-HL groups, SDSmax was nearly 100%, with no significant difference. SDSmax was significantly lower for older patients (≥50 years) in the M-HL group than in the S-HL group, even though there were no significant differences in age and BC thresholds between groups. CONCLUSION Decrease of auditory activity due to the conductive component of M-HL may worsen speech discrimination ability. Early treatment of M-HL would be desirable for the preservation of auditory function.
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Affiliation(s)
- Takaomi Kurioka
- Department of Otorhinolaryngology - Head and Neck Surgery, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Hajime Sano
- Kitasato University School of Allied Health Sciences, Sagamihara, Kanagawa, Japan
| | - Shogo Furuki
- Department of Otorhinolaryngology - Head and Neck Surgery, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Taku Yamashita
- Department of Otorhinolaryngology - Head and Neck Surgery, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
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12
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Xie Z, Gaskins CR, Shader MJ, Gordon-Salant S, Anderson S, Goupell MJ. Age-Related Temporal Processing Deficits in Word Segments in Adult Cochlear-Implant Users. Trends Hear 2020; 23:2331216519886688. [PMID: 31808373 PMCID: PMC6900735 DOI: 10.1177/2331216519886688] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Aging may limit speech understanding outcomes in cochlear-implant (CI) users.
Here, we examined age-related declines in auditory temporal processing as a
potential mechanism that underlies speech understanding deficits associated with
aging in CI users. Auditory temporal processing was assessed with a
categorization task for the words dish and ditch (i.e., identify each token as
the word dish or ditch) on a continuum of
speech tokens with varying silence duration (0 to 60 ms) prior to the final
fricative. In Experiments 1 and 2, younger CI (YCI), middle-aged CI (MCI), and
older CI (OCI) users participated in the categorization task across a range of
presentation levels (25 to 85 dB). Relative to YCI, OCI required longer silence
durations to identify ditch and exhibited reduced ability to distinguish the
words dish and ditch (shallower slopes in the categorization function).
Critically, we observed age-related performance differences only at higher
presentation levels. This contrasted with findings from normal-hearing listeners
in Experiment 3 that demonstrated age-related performance differences
independent of presentation level. In summary, aging in CI users appears to
degrade the ability to utilize brief temporal cues in word identification,
particularly at high levels. Age-specific CI programming may potentially improve
clinical outcomes for speech understanding performance by older CI
listeners.
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Affiliation(s)
- Zilong Xie
- Department of Hearing and Speech Sciences, University of Maryland, College Park, MD, USA
| | - Casey R Gaskins
- Department of Hearing and Speech Sciences, University of Maryland, College Park, MD, USA
| | - Maureen J Shader
- Department of Hearing and Speech Sciences, University of Maryland, College Park, MD, USA
| | - Sandra Gordon-Salant
- Department of Hearing and Speech Sciences, University of Maryland, College Park, MD, USA
| | - Samira Anderson
- Department of Hearing and Speech Sciences, University of Maryland, College Park, MD, USA
| | - Matthew J Goupell
- Department of Hearing and Speech Sciences, University of Maryland, College Park, MD, USA
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Rumschlag JA, Lovelace JW, Razak KA. Age- and movement-related modulation of cortical oscillations in a mouse model of presbycusis. Hear Res 2020; 402:108095. [PMID: 33707000 DOI: 10.1016/j.heares.2020.108095] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 08/27/2020] [Accepted: 10/09/2020] [Indexed: 01/29/2023]
Abstract
Brain oscillations are associated with specific cognitive and sensory processes. How age-related hearing loss (presbycusis) alters cortical oscillations is unclear. Altered inhibitory neurotransmission and temporal processing deficits contribute to speech recognition impairments in presbycusis. Specifically, age-related reduction in parvalbumin positive interneurons and perineuronal nets in the auditory cortex predicts a reduction in gamma oscillations that may lead to a decline in temporal precision and attention. To test the hypothesis that resting and evoked gamma oscillations decline with presbycusis, EEGs were recorded from the auditory and frontal cortex of awake, freely moving C57BL/6 J mice at three ages (3, 14 and 24 months). Resting EEG data were analyzed according to movement state (move versus still). Evoked responses were recorded following presentation of noise bursts or amplitude modulated noise with time varying modulation frequencies. We report an age-related decrease in resting gamma power, a decline in gamma-range synchrony to time varying stimuli, and an increase in noise evoked and induced gamma power. A decline in temporal processing is seen in aged mice that exhibit robust auditory-evoked potentials, dissociating hearing loss from temporal processing deficits. We also report an increase in gamma power when mice moved compared to the still state. However, the movement-related modulation of gamma oscillations did not change with age. Together, these data identify a number of novel markers of presbycusis-related changes in auditory and frontal cortex. Because EEGs are commonly recorded in humans, the mouse data may serve as translation relevant preclinical biomarkers to facilitate the development of therapeutics to delay or reverse central auditory processing deficits in presbycusis.
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Affiliation(s)
- J A Rumschlag
- Graduate Neuroscience Program, University of California, Riverside, United States
| | - J W Lovelace
- Psychology Department, University of California, Riverside, United States
| | - K A Razak
- Graduate Neuroscience Program, University of California, Riverside, United States; Psychology Department, University of California, Riverside, United States.
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14
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Faucette SP, Stuart A. An examination of electrophysiological release from masking in young and older adults. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2020; 148:1786. [PMID: 33138490 DOI: 10.1121/10.0002010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 09/09/2020] [Indexed: 06/11/2023]
Abstract
The effect of age on release from masking (RFM) was examined using cortical auditory evoked potentials (CAEPs). Two speech-in-noise paradigms [i.e., fixed speech with varying signal-to-noise ratios (SNRs) and fixed noise with varying speech levels], similar to those used in behavioral measures of RFM, were employed with competing continuous and interrupted noises. Young and older normal-hearing adults participated (N = 36). Cortical responses were evoked in the fixed speech paradigm at SNRs of -10, 0, and 10 dB. In the fixed noise paradigm, the CAEP SNR threshold was determined in both noises as the lowest SNR that yielded a measurable response. RFM was demonstrated in the fixed speech paradigm with a significant amount of missing responses, longer P1 and N1 latencies, and smaller N1 response amplitudes in continuous noise at the poorest -10 dB SNR. In the fixed noise paradigm, RFM was demonstrated with significantly lower CAEP SNR thresholds in interrupted noise. Older participants demonstrated significantly longer P2 latencies and reduced P1 and N1 amplitudes. There was no evidence of a group difference in RFM in either paradigm.
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Affiliation(s)
- Sarah P Faucette
- Department of Otolaryngology and Communicative Sciences, University of Mississippi Medical Center, 2500 North State Street, Jackson, Mississippi 39216-4505, USA
| | - Andrew Stuart
- Department of Communication Sciences and Disorders, East Carolina University, Greenville, North Carolina 27858-4353, USA
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15
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Loughran MT, Lyons S, Plack CJ, Armitage CJ. Which interventions increase hearing protection behaviors during noisy recreational activities? A systematic review. BMC Public Health 2020; 20:1376. [PMID: 32919462 PMCID: PMC7488782 DOI: 10.1186/s12889-020-09414-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 08/19/2020] [Indexed: 12/31/2022] Open
Abstract
Background Hearing loss and tinnitus are global concerns that can be reduced through hearing protection behaviors (e.g., earplug use). Little is known about the effectiveness of interventions to increase hearing protection use in recreational domains. For the first time we review systematically the effectiveness of such interventions. Methods Systematic searches of nine databases, as well as grey literature and hand-searching, were conducted. Any study design was included if it assessed quantitatively a purposeful attempt to increase hearing protection in recreational settings. Studies were excluded if they assessed noise exposure from occupational sources and headphones/earphones, as these have been reviewed elsewhere. PROSPERO protocol: CRD42018098573. Results Eight studies were retrieved following the screening of 1908 articles. Two pretest-posttest studies detected a small to medium effect (d ≥ 0·3 ≤ 0·5), one a small effect (d ~ =0·2) and two no real effect. Three posttest experimental studies detected small to medium effects (d ≥ 0·3 ≤ 0·5). Studies were rated as “poor quality” and 17 out of a possible 93 behavior change techniques were coded, with the majority targeting the intervention function ‘education’. Conclusions Hearing loss and tinnitus due to recreational noise exposure are major public health concerns yet very few studies have examined preventive interventions. The present systematic review sets the agenda for the future development and testing of evidence-based interventions designed to prevent future hearing loss and tinnitus caused by noise in recreational settings, by recommending systematic approaches to intervention design, and implementation of intervention functions beyond education, such as incentivization, enablement and modeling.
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Affiliation(s)
- Michael T Loughran
- Manchester Centre for Health Psychology, School of Health Sciences, University of Manchester, Manchester Academic Health Science Centre, M13 9PL, Manchester, UK. .,Manchester Centre for Audiology and Deafness, School of Health Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.
| | - Stephanie Lyons
- Manchester Centre for Health Psychology, School of Health Sciences, University of Manchester, Manchester Academic Health Science Centre, M13 9PL, Manchester, UK
| | - Christopher J Plack
- Manchester Centre for Audiology and Deafness, School of Health Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.,Department of Psychology, Lancaster University, Lancaster, UK
| | - Christopher J Armitage
- Manchester Centre for Health Psychology, School of Health Sciences, University of Manchester, Manchester Academic Health Science Centre, M13 9PL, Manchester, UK.,Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
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16
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Faucette SP, Stuart A. Effect of presentation level and age on release from masking: Behavioral measures. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2020; 148:1510. [PMID: 33003838 DOI: 10.1121/10.0001964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 08/27/2020] [Indexed: 06/11/2023]
Abstract
The effect of presentation level and age on release from masking (RFM) was examined. Two speech-in-noise paradigms [i.e., fixed speech with varying signal-to-noise ratios (SNRs) and fixed noise with varying speech levels] were employed with competing continuous and interrupted noises. Young and older normal-hearing adults participated (N = 36). Word recognition was assessed at three presentation levels (i.e., 20, 30, and 40 dB sensation level) in SNRs of -10, 0, and 10 dB. Reception thresholds for sentences (RTSs) were determined at three presentation levels (i.e., 55, 65, and 75 dB sound pressure level). RTS SNRs were determined in both noises. RFM was computed by subtracting word recognition scores in continuous noise from interrupted noise and RTS SNRs in interrupted noise from continuous noise. Significant effects of presentation level, group, and SNR were seen with word recognition performance. RFM increased with increasing sensation level, was greater in younger adults, and was superior at -10 dB SNR. With RTS SNRs, significant effects of presentation level and group were found. The findings support the notion that RFM is a level dependent auditory temporal resolution phenomenon and older listeners display a deficit relative to younger listeners.
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Affiliation(s)
- Sarah P Faucette
- Department of Otolaryngology and Communicative Sciences, University of Mississippi Medical Center, 2500 North State Street, Jackson, Mississippi 39216-4505, USA
| | - Andrew Stuart
- Department of Communication Sciences and Disorders, East Carolina University, Greenville, North Carolina 27858-4353, USA
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17
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Cortical Tracking of Speech in Delta Band Relates to Individual Differences in Speech in Noise Comprehension in Older Adults. Ear Hear 2020; 42:343-354. [PMID: 32826508 DOI: 10.1097/aud.0000000000000923] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
OBJECTIVES Understanding speech in adverse listening environments is challenging for older adults. Individual differences in pure tone averages and working memory are known to be critical indicators of speech in noise comprehension. Recent studies have suggested that tracking of the speech envelope in cortical oscillations <8 Hz may be an important mechanism related to speech comprehension by segmenting speech into words and phrases (delta, 1 to 4 Hz) or phonemes and syllables (theta, 4 to 8 Hz). The purpose of this study was to investigate the extent to which individual differences in pure tone averages, working memory, and cortical tracking of the speech envelope relate to speech in noise comprehension in older adults. DESIGN Cortical tracking of continuous speech was assessed using electroencephalography in older adults (60 to 80 years). Participants listened to speech in quiet and in the presence of noise (time-reversed speech) and answered comprehension questions. Participants completed Forward Digit Span and Backward Digit Span as measures of working memory, and pure tone averages were collected. An index of reduction in noise (RIN) was calculated by normalizing the difference between raw cortical tracking in quiet and in noise. RESULTS Comprehension question performance was greater for speech in quiet than for speech in noise. The relationship between RIN and speech in noise comprehension was assessed while controlling for the effects of individual differences in pure tone averages and working memory. Delta band RIN correlated with speech in noise comprehension, while theta band RIN did not. CONCLUSIONS Cortical tracking by delta oscillations is robust to the effects of noise. These findings demonstrate that the magnitude of delta band RIN relates to individual differences in speech in noise comprehension in older adults. Delta band RIN may serve as a neural metric of speech in noise comprehension beyond the effects of pure tone averages and working memory.
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18
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Kurioka T, Sano H, Furuki S, Yamashita T. Speech discrimination impairment of the worse-hearing ear in asymmetric hearing loss. Int J Audiol 2020; 60:54-59. [PMID: 32720534 DOI: 10.1080/14992027.2020.1795282] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
OBJECTIVE This study aimed to compare the difference in maximum speech discrimination score (SDSmax) of the worse-hearing ear in asymmetric hearing loss (ASHL) patients with that in symmetric hearing loss (SHL) patients. DESIGN We retrospectively reviewed medical records of patients with suspected hearing loss (HL) who underwent audiometric examinations. Patients were divided into two groups according to the difference in air conduction (AC) threshold between the right and left ears: the SHL group and the ASHL group. STUDY SAMPLE Of the 102 patients (204 ears), 74 (148 ears) had SHL, and 28 had ASHL. RESULTS The worse-hearing ear of ASHL patients exhibited a statistically significantly higher AC threshold and lower SDSmax, compared with ears of SHL patients and better-hearing ears of ASHL patients, and SDSmax exhibited a statistically significant negative correlation with AC threshold. The SDSmax was statistically significantly lower in the worse-hearing ear of the ASHL group than in moderate to severe HL ears of the SHL group, even though these groups had comparable AC thresholds. CONCLUSIONS ASHL patients' worse-hearing ear exhibited a lower SDSmax than SHL patients' ears, despite a comparable AC threshold. Management of hearing impairment in ASHL patients should receive more attention.
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Affiliation(s)
- Takaomi Kurioka
- Department of Otorhinolaryngology, Head and Neck Surgery, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Hajime Sano
- School of Allied Health Sciences, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Shogo Furuki
- Department of Otorhinolaryngology, Head and Neck Surgery, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Taku Yamashita
- Department of Otorhinolaryngology, Head and Neck Surgery, Kitasato University, Sagamihara, Kanagawa, Japan
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19
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Anderson S, Roque L, Gaskins CR, Gordon-Salant S, Goupell MJ. Age-Related Compensation Mechanism Revealed in the Cortical Representation of Degraded Speech. J Assoc Res Otolaryngol 2020; 21:373-391. [PMID: 32643075 DOI: 10.1007/s10162-020-00753-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 04/05/2020] [Indexed: 02/08/2023] Open
Abstract
Older adults understand speech with comparative ease in quiet, but signal degradation can hinder speech understanding much more than it does in younger adults. This difficulty may result, in part, from temporal processing deficits related to the aging process and/or high-frequency hearing loss that can occur in listeners who have normal- or near-normal-hearing thresholds in the speech frequency range. Temporal processing deficits may manifest as degraded neural representation in peripheral and brainstem/midbrain structures that lead to compensation, or changes in response strength in auditory cortex. Little is understood about the process by which the neural representation of signals is improved or restored by age-related cortical compensation mechanisms. Therefore, we used vocoding to simulate spectral degradation to compare the behavioral and neural representation of words that contrast on a temporal dimension. Specifically, we used the closure duration of the silent interval between the vowel and the final affricate /t∫/ or fricative /ʃ/ of the words DITCH and DISH, respectively. We obtained perceptual identification functions and electrophysiological neural measures (frequency-following responses (FFR) and cortical auditory-evoked potentials (CAEPs)) to unprocessed and vocoded versions of these words in young normal-hearing (YNH), older normal- or near-normal-hearing (ONH), and older hearing-impaired (OHI) listeners. We found that vocoding significantly reduced the slope of the perceptual identification function in only the OHI listeners. In contrast to the limited effects of vocoding on perceptual performance, vocoding had robust effects on the FFRs across age groups, such that stimulus-to-response correlations and envelope magnitudes were significantly lower for vocoded vs. unprocessed conditions. Increases in the P1 peak amplitude for vocoded stimuli were found for both ONH and OHI listeners, but not for the YNH listeners. These results suggest that while vocoding substantially degrades early neural representation of speech stimuli in the midbrain, there may be cortical compensation in older listeners that is not seen in younger listeners.
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Affiliation(s)
- Samira Anderson
- Department of Hearing and Speech Sciences, University of Maryland, College Park, MD, 20742, USA.
| | - Lindsey Roque
- Department of Hearing and Speech Sciences, University of Maryland, College Park, MD, 20742, USA
| | - Casey R Gaskins
- Department of Hearing and Speech Sciences, University of Maryland, College Park, MD, 20742, USA
| | - Sandra Gordon-Salant
- Department of Hearing and Speech Sciences, University of Maryland, College Park, MD, 20742, USA
| | - Matthew J Goupell
- Department of Hearing and Speech Sciences, University of Maryland, College Park, MD, 20742, USA
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20
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Heeringa AN, Zhang L, Ashida G, Beutelmann R, Steenken F, Köppl C. Temporal Coding of Single Auditory Nerve Fibers Is Not Degraded in Aging Gerbils. J Neurosci 2020. [PMID: 31719164 DOI: 10.1101/2020.02.10.942011] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023] Open
Abstract
People suffering from age-related hearing loss typically present with deficits in temporal processing tasks. Temporal processing deficits have also been shown in single-unit studies at the level of the auditory brainstem, midbrain, and cortex of aged animals. In this study, we explored whether temporal coding is already affected at the level of the input to the central auditory system. Single-unit auditory nerve fiber recordings were obtained from 41 Mongolian gerbils of either sex, divided between young, middle-aged, and old gerbils. Temporal coding quality was evaluated as vector strength in response to tones at best frequency, and by constructing shuffled and cross-stimulus autocorrelograms, and reverse correlations, from responses to 1 s noise bursts at 10-30 dB sensation level (dB above threshold). At comparable sensation levels, all measures showed that temporal coding was not altered in auditory nerve fibers of aging gerbils. Furthermore, both temporal fine structure and envelope coding remained unaffected. However, spontaneous rates were decreased in aging gerbils. Importantly, despite elevated pure tone thresholds, the frequency tuning of auditory nerve fibers was not affected. These results suggest that age-related temporal coding deficits arise more centrally, possibly due to a loss of auditory nerve fibers (or their peripheral synapses) but not due to qualitative changes in the responses of remaining auditory nerve fibers. The reduced spontaneous rate and elevated thresholds, but normal frequency tuning, of aged auditory nerve fibers can be explained by the well known reduction of endocochlear potential due to strial dysfunction in aged gerbils.SIGNIFICANCE STATEMENT As our society ages, age-related hearing deficits become ever more prevalent. Apart from decreased hearing sensitivity, elderly people often suffer from a reduced ability to communicate in daily settings, which is thought to be caused by known age-related deficits in auditory temporal processing. The current study demonstrated, using several different stimuli and analysis techniques, that these putative temporal processing deficits are not apparent in responses of single-unit auditory nerve fibers of quiet-aged gerbils. This suggests that age-related temporal processing deficits may develop more central to the auditory nerve, possibly due to a reduced population of active auditory nerve fibers, which will be of importance for the development of treatments for age-related hearing disorders.
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Affiliation(s)
- Amarins N Heeringa
- Cluster of Excellence "Hearing4all" and Research Centre Neurosensory Science, Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
| | - Lichun Zhang
- Cluster of Excellence "Hearing4all" and Research Centre Neurosensory Science, Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
| | - Go Ashida
- Cluster of Excellence "Hearing4all" and Research Centre Neurosensory Science, Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
| | - Rainer Beutelmann
- Cluster of Excellence "Hearing4all" and Research Centre Neurosensory Science, Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
| | - Friederike Steenken
- Cluster of Excellence "Hearing4all" and Research Centre Neurosensory Science, Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
| | - Christine Köppl
- Cluster of Excellence "Hearing4all" and Research Centre Neurosensory Science, Department of Neuroscience, School of Medicine and Health Science, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany
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21
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Temporal Coding of Single Auditory Nerve Fibers Is Not Degraded in Aging Gerbils. J Neurosci 2019; 40:343-354. [PMID: 31719164 DOI: 10.1523/jneurosci.2784-18.2019] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 10/25/2019] [Accepted: 11/04/2019] [Indexed: 02/03/2023] Open
Abstract
People suffering from age-related hearing loss typically present with deficits in temporal processing tasks. Temporal processing deficits have also been shown in single-unit studies at the level of the auditory brainstem, midbrain, and cortex of aged animals. In this study, we explored whether temporal coding is already affected at the level of the input to the central auditory system. Single-unit auditory nerve fiber recordings were obtained from 41 Mongolian gerbils of either sex, divided between young, middle-aged, and old gerbils. Temporal coding quality was evaluated as vector strength in response to tones at best frequency, and by constructing shuffled and cross-stimulus autocorrelograms, and reverse correlations, from responses to 1 s noise bursts at 10-30 dB sensation level (dB above threshold). At comparable sensation levels, all measures showed that temporal coding was not altered in auditory nerve fibers of aging gerbils. Furthermore, both temporal fine structure and envelope coding remained unaffected. However, spontaneous rates were decreased in aging gerbils. Importantly, despite elevated pure tone thresholds, the frequency tuning of auditory nerve fibers was not affected. These results suggest that age-related temporal coding deficits arise more centrally, possibly due to a loss of auditory nerve fibers (or their peripheral synapses) but not due to qualitative changes in the responses of remaining auditory nerve fibers. The reduced spontaneous rate and elevated thresholds, but normal frequency tuning, of aged auditory nerve fibers can be explained by the well known reduction of endocochlear potential due to strial dysfunction in aged gerbils.SIGNIFICANCE STATEMENT As our society ages, age-related hearing deficits become ever more prevalent. Apart from decreased hearing sensitivity, elderly people often suffer from a reduced ability to communicate in daily settings, which is thought to be caused by known age-related deficits in auditory temporal processing. The current study demonstrated, using several different stimuli and analysis techniques, that these putative temporal processing deficits are not apparent in responses of single-unit auditory nerve fibers of quiet-aged gerbils. This suggests that age-related temporal processing deficits may develop more central to the auditory nerve, possibly due to a reduced population of active auditory nerve fibers, which will be of importance for the development of treatments for age-related hearing disorders.
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22
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Quraishe S, Newman T, Anderson L. Auditory temporal acuity improves with age in the male mouse auditory thalamus: A role for perineuronal nets? J Neurosci Res 2019; 98:1780-1799. [PMID: 31562661 DOI: 10.1002/jnr.24537] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 09/13/2019] [Accepted: 09/15/2019] [Indexed: 11/09/2022]
Abstract
The ability to perceive and interpret environmental sound accurately is conserved across many species and is fundamental for understanding communication via vocalizations. Auditory acuity and temporally controlled neuronal firing underpin this ability. Deterioration in neuronal firing precision likely contributes to poorer hearing performance, yet the role of neural processing by key nuclei in the central auditory pathways is not fully understood. Here, we record from the auditory thalamus (medial geniculate body [MGB]) of young and middle-aged, normally hearing male CBA/Ca mice. We report changes in temporal processing of auditory stimuli, with neurons recorded from ventral and medial MGB subdivisions of older animals more likely to synchronize to rapid temporally varying stimuli. MGB subdivisions also showed increased probability of neuronal firing and shorter response latencies to clicks in older animals. Histological investigation of neuronal extracellular specializations, perineuronal nets (PNNs) and axonal coats, in the MGB identified greater organization of PNNs around MGB neurons and the presence of axonal coats within older animals. This supports the observation that neural responses recorded from ventral and medial MGB of older mice were more likely to synchronize to temporally varying stimuli presented at faster repetition rates than those recorded from young adult animals. These changes are observed in animals with normal hearing thresholds, confirming that neural processing differs between the MGB subdivisions and such processing is associated with age-related changes to PNNs. Understanding these age-related changes and how they occur have important implications for the design of effective therapeutic interventions to improve speech intelligibility into later life.
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Affiliation(s)
- Shmma Quraishe
- School of Biological Sciences, B85, University of Southampton, Southampton, UK
| | - Tracey Newman
- Clinical and Experimental Sciences, B85, University of Southampton, Southampton, UK
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23
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Manchaiah V, Zhao F, Ratinaud P. Young Adults' Knowledge and Attitudes Regarding "Music" and "Loud Music" Across Countries: Applications of Social Representations Theory. Front Psychol 2019; 10:1390. [PMID: 31293472 PMCID: PMC6603271 DOI: 10.3389/fpsyg.2019.01390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 05/28/2019] [Indexed: 11/30/2022] Open
Abstract
Exposure to loud music, especially by young people, has significantly increased in recent years as a result of (a) advancements in technology in terms of personal music players and smart mobile phones, and (b) streaming of music through these devices. The World Health Organization (WHO) estimates that some 1.1 billion teenagers and young adults are at risk of developing hearing loss due to exposure to recreational noise such as music. It is suggested that knowledge and attitude of young adults toward music has bearing upon their music listening habits and thereby influences who is at risk of developing music induced hearing loss. Hence, researchers from various fields have tried to understand the knowledge and attitude of young adults regarding loud music. However, there is some criticism of attitude studies as there is little relation between expressed attitude and behavior. Some recent studies have explored the social representations of music and loud music using the Social Representations Theory (SRT). It has been suggested that social representation is more fundamental than attitude (or in other words social representation informs attitude), hence, it has a better relation to behavior. The current paper: (1) provides an overview of studies on knowledge and attitude of young adults toward loud music, (2) discusses the limitations of attitude theories and introduces SRT, and (3) provides a summary of social representation studies on “music” and “loud music” in young adults from different countries.
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Affiliation(s)
- Vinaya Manchaiah
- Department of Speech and Hearing Sciences, Lamar University, Beaumont, TX, United States.,Audiology India, Mysore, India.,Department of Speech and Hearing, School of Allied Health Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Fei Zhao
- Centre for Speech Language Therapy and Hearing Science, Cardiff Metropolitan University, Cardiff, United Kingdom.,Department of Hearing and Speech Science, Xinhua College, Sun Yat-sen University, Guangzhou, China
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24
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Dias JW, McClaskey CM, Harris KC. Time-Compressed Speech Identification Is Predicted by Auditory Neural Processing, Perceptuomotor Speed, and Executive Functioning in Younger and Older Listeners. J Assoc Res Otolaryngol 2019; 20:73-88. [PMID: 30456729 PMCID: PMC6364265 DOI: 10.1007/s10162-018-00703-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 10/08/2018] [Indexed: 10/27/2022] Open
Abstract
Older adults typically have difficulty identifying speech that is temporally distorted, such as reverberant, accented, time-compressed, or interrupted speech. These difficulties occur even when hearing thresholds fall within a normal range. Auditory neural processing speed, which we have previously found to predict auditory temporal processing (auditory gap detection), may interfere with the ability to recognize phonetic features as they rapidly unfold over time in spoken speech. Further, declines in perceptuomotor processing speed and executive functioning may interfere with the ability to track, access, and process information. The current investigation examined the extent to which age-related differences in time-compressed speech identification were predicted by auditory neural processing speed, perceptuomotor processing speed, and executive functioning. Groups of normal-hearing (up to 3000 Hz) younger and older adults identified 40, 50, and 60 % time-compressed sentences. Auditory neural processing speed was defined as the P1 and N1 latencies of click-induced auditory-evoked potentials. Perceptuomotor processing speed and executive functioning were measured behaviorally using the Connections Test. Compared to younger adults, older adults exhibited poorer time-compressed speech identification and slower perceptuomotor processing. Executive functioning, P1 latency, and N1 latency did not differ between age groups. Time-compressed speech identification was independently predicted by P1 latency, perceptuomotor processing speed, and executive functioning in younger and older listeners. Results of model testing suggested that declines in perceptuomotor processing speed mediated age-group differences in time-compressed speech identification. The current investigation joins a growing body of literature suggesting that the processing of temporally distorted speech is impacted by lower-level auditory neural processing and higher-level perceptuomotor and executive processes.
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Affiliation(s)
- James W Dias
- Department of Otolaryngology, Medical University of South Carolina, 135 Rutledge Avenue, MSC 550, Charleston, SC, 29425-5500, USA.
| | - Carolyn M McClaskey
- Department of Otolaryngology, Medical University of South Carolina, 135 Rutledge Avenue, MSC 550, Charleston, SC, 29425-5500, USA
| | - Kelly C Harris
- Department of Otolaryngology, Medical University of South Carolina, 135 Rutledge Avenue, MSC 550, Charleston, SC, 29425-5500, USA
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25
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Seever KL, Johnson CE, Baldwin J, Danhauer JL, Wolfe B, Jeannont S. Effects of Including Information about Hidden Hearing Loss in an Adopt-A-Band Program on College Band Members' Attitudes toward Healthy Hearing Behaviors. Semin Hear 2018; 39:210-220. [PMID: 29930438 DOI: 10.1055/s-0038-1641744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
Young musicians may be at risk for developing cochlear synaptopathy (CS), or hidden hearing loss (HHL), that could lead to permanent music-induced hearing loss (MIHL). Patients with CS often complain of tinnitus and/or difficulty understanding speech in noisy situations, even though traditional audiometric testing indicates normal hearing. The aim of this article was to determine the effects of including information about HHL on an Adopt-A-Band program involving college band members' concern about and self-efficacy toward the prevention of MIHL. We conducted a single-blinded, randomized clinical trial. Forty-eight band members participated in this study. Band members were randomly assigned to two Adopt-A-Band presentations, one with and one without information on HHL. Including information about HHL had no effect on these band members' concerns about and self-efficacy toward the prevention of MIHL. However, the Adopt-A-Band program resulted in significantly increased concern for MIHL by 39.5% ( p < 0.0001, 95% confidence interval [CI]: 25-54.2), self-efficacy in its prevention by 79.1% ( p < 0.0001, 95% CI: 66.9-91.2), and plans to use musicians' earplugs while playing by 67.4% ( p < 0.0001, 95% CI: 53.4-81.45). Although inclusion of information about HHL did not have a significant effect, the Adopt-A-Band program, in general, significantly increased the immediate intent of these students to practice healthy hearing behaviors. Future research is needed to determine the long-term effects of using the Adopt-A-Band program with university marching bands' use of healthy hearing behaviors.
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Affiliation(s)
- Katie L Seever
- Hearing Evaluation, Rehabilitation, and Outcomes Laboratory, Department of Communication Sciences and Disorders, College of Allied Health, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Carole E Johnson
- Hearing Evaluation, Rehabilitation, and Outcomes Laboratory, Department of Communication Sciences and Disorders, College of Allied Health, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Jonathan Baldwin
- Department of Medical Imaging and Radiation Sciences, College of Allied Health, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Jeffrey L Danhauer
- Department of Speech and Hearing Sciences, University of California Santa Barbara, Santa Barbara, California
| | - Brian Wolfe
- Catlett School of Music, University of Oklahoma, Norman, Oklahoma
| | - Stevana Jeannont
- Hearing Evaluation, Rehabilitation, and Outcomes Laboratory, Department of Communication Sciences and Disorders, College of Allied Health, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
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Johnson CE, Jilla AM, Danhauer JL. Developing Foundational Counseling Skills for Addressing Adherence Issues in Auditory Rehabilitation. Semin Hear 2018; 39:13-31. [PMID: 29422710 PMCID: PMC5802987 DOI: 10.1055/s-0037-1613702] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Successfully getting patients with confirmed hearing loss to use hearing aids is a major challenge for hearing health care professionals. Treatment adherence has been defined as the active involvement of patients in collaborating with health care providers to plan and manage treatment regimens. Counseling patients with hearing loss on adherence to recommendations of hearing aid uptake and utilization is dependent upon building a patient-centered therapeutic relationship during the initial diagnostic evaluation. The purpose of this article is to provide resources, tools, and engaging learning activities for training students on the development of a hierarchy of counseling skills: informational counseling (e.g., checking comprehension and problem clarification), communication skills (e.g., promotion of shared-communication space, congruence, listening with the third ear, unconditional positive regard, and empathy), and health behavior change (e.g., Motivational Interviewing and the Teach-Back Method) that are prerequisites for addressing treatment adherence.
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Affiliation(s)
- Carole E. Johnson
- Hearing Evaluation, Rehabilitation, and Outcomes (HERO) Laboratory, Department of Communication Sciences and Disorders, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Anna Marie Jilla
- Hearing Evaluation, Rehabilitation, and Outcomes (HERO) Laboratory, Department of Communication Sciences and Disorders, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Jeffrey L. Danhauer
- Department of Speech and Hearing Sciences, University of California Santa Barbara, Santa Barbara, California
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Arceno RS, Scharlach RC. Teste de fala comprimida em idosos. Codas 2017; 29:e20160243. [DOI: 10.1590/2317-1782/20172016243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 04/28/2017] [Indexed: 11/22/2022] Open
Abstract
RESUMO Objetivo Avaliar o desempenho de idosos no teste de fala comprimida segundo as variáveis orelha, ordem de apresentação e idade, além de analisar a ocorrência de erros. Método O estudo é caracterizado como observacional, descritivo, quantitativo, analítico e do tipo transversal primário, o qual envolveu 22 idosos entre 60 e 80 anos de idade, portadores de audição normal ou com perda neurossensorial de grau leve. Os idosos foram submetidos à aplicação do teste de fala comprimida apenas com dissílabos e com taxa de compressão de 60%, por meio do método de compressão de tempo eletromecânico. Em cada orelha, foi aplicada uma lista de 50 dissílabos, sendo a ordem de início de teste aleatória. Resultados Quanto ao desempenho no teste, verificou-se que não houve diferença estatística entre as orelhas e os idosos apresentaram resultados aquém do encontrado na população adulta. Encontrou-se significância estatística de melhor desempenho para a segunda orelha de início de teste. A maior ocorrência de erros se deu para as palavras que iniciaram com os fonemas /p/ e /d/. A presença de encontro consonantal na palavra também aumentou a ocorrência de erros. Conclusão Os idosos apresentam pior desempenho na habilidade de fechamento auditivo, quando avaliados por meio do teste de fala comprimida, em comparação aos indivíduos adultos. Este resultado sugere que os idosos têm dificuldades para reconhecer a fala quando esta lhe é apresentada numa velocidade aumentada. Sendo assim, estratégias devem ser utilizadas para facilitar o processo comunicativo, independentemente da presença de uma perda auditiva.
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Moreno-Gómez FN, Véliz G, Rojas M, Martínez C, Olmedo R, Panussis F, Dagnino-Subiabre A, Delgado C, Delano PH. Music Training and Education Slow the Deterioration of Music Perception Produced by Presbycusis in the Elderly. Front Aging Neurosci 2017; 9:149. [PMID: 28579956 PMCID: PMC5437118 DOI: 10.3389/fnagi.2017.00149] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 05/02/2017] [Indexed: 12/13/2022] Open
Abstract
The perception of music depends on the normal function of the peripheral and central auditory system. Aged subjects without hearing loss have altered music perception, including pitch and temporal features. Presbycusis or age-related hearing loss is a frequent condition in elderly people, produced by neurodegenerative processes that affect the cochlear receptor cells and brain circuits involved in auditory perception. Clinically, presbycusis patients have bilateral high-frequency hearing loss and deteriorated speech intelligibility. Music impairments in presbycusis subjects can be attributed to the normal aging processes and to presbycusis neuropathological changes. However, whether presbycusis further impairs music perception remains controversial. Here, we developed a computerized version of the Montreal battery of evaluation of amusia (MBEA) and assessed music perception in 175 Chilean adults aged between 18 and 90 years without hearing complaints and in symptomatic presbycusis patients. We give normative data for MBEA performance in a Latin-American population, showing age and educational effects. In addition, we found that symptomatic presbycusis was the most relevant factor determining global MBEA accuracy in aged subjects. Moreover, we show that melodic impairments in presbycusis individuals were diminished by music training, while the performance in temporal tasks were affected by the educational level and music training. We conclude that music training and education are important factors as they can slow the deterioration of music perception produced by age-related hearing loss.
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Affiliation(s)
- Felipe N. Moreno-Gómez
- Laboratorio de Neurobiología de la Audición, Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de ChileSantiago, Chile
- Auditory and Cognition Center, AUCOSantiago, Chile
- Departamento de Biología y Química, Facultad de Ciencias Básicas, Universidad Católica del MauleTalca, Chile
| | - Guillermo Véliz
- Laboratorio de Neurobiología de la Audición, Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de ChileSantiago, Chile
- Departamento de Otorrinolaringología, Hospital Clínico de la Universidad de ChileSantiago, Chile
| | - Marcos Rojas
- Laboratorio de Neurobiología de la Audición, Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de ChileSantiago, Chile
- Departamento de Otorrinolaringología, Hospital Clínico de la Universidad de ChileSantiago, Chile
| | - Cristián Martínez
- Departamento de Otorrinolaringología, Hospital Clínico de la Universidad de ChileSantiago, Chile
| | - Rubén Olmedo
- Departamento de Otorrinolaringología, Hospital Clínico de la Universidad de ChileSantiago, Chile
| | - Felipe Panussis
- Departamento de Otorrinolaringología, Hospital Clínico de la Universidad de ChileSantiago, Chile
| | - Alexies Dagnino-Subiabre
- Auditory and Cognition Center, AUCOSantiago, Chile
- Laboratorio de Neurobiología del Stress, Centro de Neurobiología y Plasticidad Cerebral (CNPC), Instituto de Fisiología, Facultad de Ciencias, Universidad de ValparaísoValparaíso, Chile
| | - Carolina Delgado
- Auditory and Cognition Center, AUCOSantiago, Chile
- Departamento Neurología y Neurocirugía, Hospital Clínico de la Universidad de ChileSantiago, Chile
| | - Paul H. Delano
- Laboratorio de Neurobiología de la Audición, Programa de Fisiología y Biofísica, Instituto de Ciencias Biomédicas (ICBM), Facultad de Medicina, Universidad de ChileSantiago, Chile
- Auditory and Cognition Center, AUCOSantiago, Chile
- Departamento de Otorrinolaringología, Hospital Clínico de la Universidad de ChileSantiago, Chile
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Harris KC, Dubno JR. Age-related deficits in auditory temporal processing: unique contributions of neural dyssynchrony and slowed neuronal processing. Neurobiol Aging 2017; 53:150-158. [PMID: 28185661 PMCID: PMC5385299 DOI: 10.1016/j.neurobiolaging.2017.01.008] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 01/02/2017] [Accepted: 01/05/2017] [Indexed: 11/20/2022]
Abstract
This study was guided by the hypothesis that the aging central nervous system progressively loses its ability to process rapid acoustic changes that are important for speech recognition. Specifically, we hypothesized that age-related deficits in neural synchrony and neuronal oscillatory activity occur independently in older adults and disrupt auditory temporal processing. Neural synchrony is largely dependent on phase locking within the central auditory pathway, beginning at the auditory nerve. In contrast, the resonance characteristics of oscillatory activity are dependent on the integrity and structure of long range cortical connections. We tested our hypotheses by assessing age-related differences in electrophysiologic correlates of neural synchrony and peak oscillatory frequency in younger and older adults with normal hearing and determining their associations with a behavioral measure of gap detection. Phase-locking values were smaller (poorer neural synchrony) and peak alpha frequency was lower for older than younger adults and decreased as gap detection thresholds increased; variations in phase-locking values and peak alpha frequency uniquely predicted gap detection thresholds. These effects were driven, in large part, by associations in older adults. These results reveal dissociable neural mechanisms associated with distinct underlying pathology that may differentially be present in older adults and contribute to auditory processing declines.
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Affiliation(s)
- Kelly C Harris
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, SC, USA.
| | - Judy R Dubno
- Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, SC, USA
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Remez RE, Thomas EF, Wycoff AM, Giglio RE, Crank AT, Cheimets CB, Koinis SM. Constraints on Sensitivity to Auditory Modulation in the Perceptual Organization of Speech. Exp Aging Res 2016; 42:3-13. [PMID: 26683038 DOI: 10.1080/0361073x.2016.1108741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND/STUDY CONTEXT The perception of speech requires the integration of sensory details from a rapidly fading trace of a time-varying spectrum. This effortful cognitive function has been difficult to assess. New tests measuring intelligibility of sine-wave replicas of speech provided an assay of this critical function in normal-hearing young adults. METHODS Four time-varying sinusoids replicated the frequency and amplitude variation of the natural resonances of spoken sentences. The temporal tolerance of perceptual integration of speech was measured by determining the effect on intelligibility of desynchronizing a single sine-wave component in each sentence. This method was applied in tests in which the sentences were temporally compressed or expanded over a 40% range. RESULTS Desynchrony was harmful to perceptual integration over a narrow temporal range, indicating that modulation sensitivity is keyed to a rate of 20 Hz. No effect of variation in speech rate was observed on the intelligibility measure, whether rate was accelerated or decelerated relative to the natural rate. CONCLUSION Performance measures of desynchrony tolerance did not vary when speech rate was accelerated or decelerated, revealing constraints on integration that are arguably primitive, sensory, auditory, and fixed. Because these are not adaptable, they limit the potential for perceptual learning in this aspect of perceptual organization. Implications for describing the elderly listener are noted.
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Affiliation(s)
- Robert E Remez
- a Department of Psychology and Program in Neuroscience & Behavior , Barnard College, Columbia University , New York , New York , USA
| | - Emily F Thomas
- a Department of Psychology and Program in Neuroscience & Behavior , Barnard College, Columbia University , New York , New York , USA
| | - Andrea M Wycoff
- a Department of Psychology and Program in Neuroscience & Behavior , Barnard College, Columbia University , New York , New York , USA
| | - Rebecca E Giglio
- a Department of Psychology and Program in Neuroscience & Behavior , Barnard College, Columbia University , New York , New York , USA
| | - Aislinn T Crank
- a Department of Psychology and Program in Neuroscience & Behavior , Barnard College, Columbia University , New York , New York , USA
| | - Chloe B Cheimets
- a Department of Psychology and Program in Neuroscience & Behavior , Barnard College, Columbia University , New York , New York , USA
| | - Stavroula M Koinis
- a Department of Psychology and Program in Neuroscience & Behavior , Barnard College, Columbia University , New York , New York , USA
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31
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Amlani AM. Application of the Consumer Decision-Making Model to Hearing Aid Adoption in First-Time Users. Semin Hear 2016; 37:103-19. [PMID: 27516718 DOI: 10.1055/s-0036-1579706] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Since 1980, hearing aid adoption rates have remained essentially the same, increasing at a rate equal to the organic growth of the population. Researchers have used theoretical models from psychology and sociology to determine those factors or constructs that lead to the adoption of hearing aids by first-time impaired listeners entering the market. In this article, a theoretical model, the Consumer Decision-Making Model (CDM), premised on the neobehavioral approach that considers an individual's psychological and cognitive emphasis toward a product or service, is described. Three theoretical models (i.e., transtheoretical, social model of disability, Health Belief Model), and their relevant findings to the hearing aid market, are initially described. The CDM is then presented, along with supporting evidence of the model's various factors from the hearing aid literature. Future applications of the CDM to hearing health care also are discussed.
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Affiliation(s)
- Amyn M Amlani
- Department of Speech and Hearing Sciences, University of North Texas, Denton, Texas
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32
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Bruckmann M, Pinheiro MMC. Efeitos da perda auditiva e da cognição no reconhecimento de sentenças. Codas 2016; 28:338-44. [DOI: 10.1590/2317-1782/20162015146] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 10/01/2015] [Indexed: 11/22/2022] Open
Abstract
RESUMO Objetivo Avaliar os efeitos da perda auditiva e da cognição no reconhecimento de sentenças em idosos. Métodos Participaram do estudo 30 idosos distribuídos em dois grupos: GI- composto por 17 idosos sem perda auditiva e GII- composto por 13 idosos com perda auditiva de grau leve. Para avaliar a cognição, foi aplicado o Mini Exame do Estado Mental (MEEM) e, para analisar os efeitos auditivos, foi realizado o teste Listas de Sentenças em Português (LSP), no qual foi pesquisado o Limiar de Reconhecimento de Sentenças no Silêncio (LRSS) e a relação sinal/ruído (S/R). Resultados No MEEM, houve um percentual maior de indivíduos com alteração no GI do que no GII. Tanto no LRSS quanto na relação S/R, o GI apresentou menores limiares do que o GII em ambas as orelhas. Em relação aos aspectos cognitivos, não houve diferença estatisticamente significante entre o grupo normal e alterado no MEEM com o LRSS e relação S/R dos grupos GI e GII de ambas as orelhas. Conclusão A perda auditiva de grau leve exerceu influência no reconhecimento de sentenças no silêncio e no ruído. Já os aspectos cognitivos não interferiram no reconhecimento de fala tanto no silêncio quanto no ruído.
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Turgeon M, Lustig C, Meck WH. Cognitive Aging and Time Perception: Roles of Bayesian Optimization and Degeneracy. Front Aging Neurosci 2016; 8:102. [PMID: 27242513 PMCID: PMC4870863 DOI: 10.3389/fnagi.2016.00102] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 04/20/2016] [Indexed: 12/14/2022] Open
Abstract
This review outlines the basic psychological and neurobiological processes associated with age-related distortions in timing and time perception in the hundredths of milliseconds-to-minutes range. The difficulty in separating indirect effects of impairments in attention and memory from direct effects on timing mechanisms is addressed. The main premise is that normal aging is commonly associated with increased noise and temporal uncertainty as a result of impairments in attention and memory as well as the possible reduction in the accuracy and precision of a central timing mechanism supported by dopamine-glutamate interactions in cortico-striatal circuits. Pertinent to these findings, potential interventions that may reduce the likelihood of observing age-related declines in timing are discussed. Bayesian optimization models are able to account for the adaptive changes observed in time perception by assuming that older adults are more likely to base their temporal judgments on statistical inferences derived from multiple trials than on a single trial's clock reading, which is more susceptible to distortion. We propose that the timing functions assigned to the age-sensitive fronto-striatal network can be subserved by other neural networks typically associated with finely-tuned perceptuo-motor adjustments, through degeneracy principles (different structures serving a common function).
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Affiliation(s)
- Martine Turgeon
- Douglas Mental Health University Institute, McGill UniversityMontreal, QC, Canada
| | - Cindy Lustig
- Department of Psychology, University of MichiganAnn Arbor, MI, USA
| | - Warren H. Meck
- Department of Psychology and Neuroscience, Duke UniversityDurham, NC, USA
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Cardin V. Effects of Aging and Adult-Onset Hearing Loss on Cortical Auditory Regions. Front Neurosci 2016; 10:199. [PMID: 27242405 PMCID: PMC4862970 DOI: 10.3389/fnins.2016.00199] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 04/22/2016] [Indexed: 11/13/2022] Open
Abstract
Hearing loss is a common feature in human aging. It has been argued that dysfunctions in central processing are important contributing factors to hearing loss during older age. Aging also has well documented consequences for neural structure and function, but it is not clear how these effects interact with those that arise as a consequence of hearing loss. This paper reviews the effects of aging and adult-onset hearing loss in the structure and function of cortical auditory regions. The evidence reviewed suggests that aging and hearing loss result in atrophy of cortical auditory regions and stronger engagement of networks involved in the detection of salient events, adaptive control and re-allocation of attention. These cortical mechanisms are engaged during listening in effortful conditions in normal hearing individuals. Therefore, as a consequence of aging and hearing loss, all listening becomes effortful and cognitive load is constantly high, reducing the amount of available cognitive resources. This constant effortful listening and reduced cognitive spare capacity could be what accelerates cognitive decline in older adults with hearing loss.
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Affiliation(s)
- Velia Cardin
- Department of Experimental Psychology, Deafness, Cognition and Language Research Centre, University College LondonLondon, UK; Department of Behavioural Sciences and Learning, Linnaeus Centre HEAD, Swedish Institute for Disability Research, Linköping UniversityLinköping, Sweden
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Manchaiah V, Rönnberg J, Andersson G, Lunner T. Stages of Change Profiles among Adults Experiencing Hearing Difficulties Who Have Not Taken Any Action: A Cross-Sectional Study. PLoS One 2015; 10:e0129107. [PMID: 26042790 PMCID: PMC4456172 DOI: 10.1371/journal.pone.0129107] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 05/05/2015] [Indexed: 11/24/2022] Open
Abstract
The aim of the current study was to test the hypothesis that adults experiencing hearing difficulties who are aware of their difficulties but have not taken any action would fall under contemplation and preparation stages based on the transtheoretical stages-of-change model. The study employed a cross-sectional design. The study was conducted in United Kingdom and 90 participants completed University of Rhode Island Change Assessment (URICA) scale as well as measures of self-reported hearing disability, self-reported anxiety and depression, self-reported hearing disability acceptance, and provided additional demographic details online. As predicted, the results indicate that a high percentage of participants (over 90%) were in the contemplation and preparation stages. No statistically significant differences were observed among groups of stage with highest URICA scores and factors such as: years since hearing disability, self-reported hearing disability, self-reported anxiety and depression, and self-reported hearing disability acceptance. Cluster analysis identified three stages-of-change clusters, which were named as: decision making (53% of sample), participation (28% of sample), and disinterest (19% of sample). Study results support the stages-of-change model. In addition, implications of the current study and areas for future research are discussed.
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Affiliation(s)
- Vinaya Manchaiah
- Department of Speech and Hearing Sciences, Lamar University, Beaumont, Texas, United States of America
- Linnaeus Centre HEAD, Swedish Institute for Disability Research, Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden
- Audiology India, Mysore, Karnataka, India
- * E-mail:
| | - Jerker Rönnberg
- Linnaeus Centre HEAD, Swedish Institute for Disability Research, Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden
| | - Gerhard Andersson
- Linnaeus Centre HEAD, Swedish Institute for Disability Research, Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden
- Department of Clinical Neuroscience, Division of Psychiatry, Karolinska Institutet, Stockholm, Sweden
| | - Thomas Lunner
- Linnaeus Centre HEAD, Swedish Institute for Disability Research, Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden
- Eriksholm Research Centre, Oticon A/S, 20 Rørtangvej, Snekkersten, Denmark
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Lee JY. Aging and Speech Understanding. J Audiol Otol 2015; 19:7-13. [PMID: 26185785 PMCID: PMC4491939 DOI: 10.7874/jao.2015.19.1.7] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 04/04/2015] [Accepted: 04/05/2015] [Indexed: 12/30/2022] Open
Abstract
As people age, structural as well as neural degeneration occurs throughout the auditory system. Many older adults experience difficulty in understanding speech especially in adverse listening conditions although they can hear speech sounds. According to a report of the Committee on Hearing and Bioacoustics and Biomechanics of the National Research Council, peripheral, central-auditory, and cognitive systems have long been considered major factors affecting the understanding of speech. The present study aims to review 1) age-related changes in the peripheral, central-auditory, and cognitive systems, 2) the resulting decline in the understanding of speech, and 3) the clinical implication for audiologic rehabilitation of older adults. Once the factors affecting the understanding of speech in older adults are identified and the characteristics of age-related speech understanding difficulties are examined, clinical management could be developed for prevention and treatment. Future research about problems related to the understanding of speech in older adults will help to improve the quality of life in the elderly.
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Affiliation(s)
- Ji Young Lee
- Department of Audiology and Speech-Language Pathology, Catholic University of Daegu, Gyeongsan, Korea
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38
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Manchaiah V, Rönnberg J, Andersson G, Lunner T. Use of the 'patient journey' model in the internet-based pre-fitting counseling of a person with hearing disability: lessons from a failed clinical trial. BMC EAR, NOSE, AND THROAT DISORDERS 2014; 14:3. [PMID: 24708677 PMCID: PMC3991917 DOI: 10.1186/1472-6815-14-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 04/02/2014] [Indexed: 11/13/2022]
Abstract
BACKGROUND Persons with a hearing impairment have various experiences during their 'journey' through hearing loss. In our previous studies we have developed 'patient journey' models of person with hearing impairment and their communication partners (CPs). The study was aimed to evaluate the effectiveness of using the patient journey model in the internet-based pre-fitting counseling of a person with hearing disability (ClinicalTrials.gov Protocol Registration System: NCT01611129, registered 2012 May 14). METHOD The study employed a randomized controlled trial (RCT) with waiting list control (WLC) design. Even though we had intended to recruit 158 participants, we only managed to recruit 80 participants who were assigned to one of two groups: (1) Intervention group; and (2) WLC. Participants from both groups completed a 30 day internet-based counseling program (group 2 waited for a month before intervention) based on the 'patient journey' model. Various outcome measures which focus on self-reported hearing disability, self-reported depression and anxiety, readiness to change and self-reported hearing disability acceptance were administered pre- and post-intervention. RESULTS The trial results suggest that the intervention was not feasible. Treatment compliancy was one of the main problems with a high number of dropouts. Only 18 participants completed both pre- and post-intervention outcome measures. Their results were included in the analysis. Results suggest no statistically significant differences among groups over time in all four measures. CONCLUSIONS Due to the limited sample size, no concrete conclusions can be drawn about the hypotheses from the current study. Furthermore, possible reasons for failure of this trial and directions for future research are discussed.
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Affiliation(s)
- Vinaya Manchaiah
- Department of Vision and Hearing Sciences, Anglia Ruskin University, Cambridge, UK
- Linnaeus Centre HEAD, Swedish Institute for Disability Research, Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden
| | - Jerker Rönnberg
- Linnaeus Centre HEAD, Swedish Institute for Disability Research, Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden
| | - Gerhard Andersson
- Linnaeus Centre HEAD, Swedish Institute for Disability Research, Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden
- Department of Clinical Neuroscience, Division of Psychiatry, Karolinska Institutet, Stockholm, Sweden
| | - Thomas Lunner
- Linnaeus Centre HEAD, Swedish Institute for Disability Research, Department of Behavioural Sciences and Learning, Linköping University, Linköping, Sweden
- Eriksholm Research Centre, Oticon A/S, 20 Rørtangvej, Snekkersten, Denmark
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Lessa AH, Costa MJ. The impact of speech rate on sentence recognition by elderly individuals. Braz J Otorhinolaryngol 2013; 79:745-52. [PMID: 24474488 PMCID: PMC9442445 DOI: 10.5935/1808-8694.20130136] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 08/27/2013] [Indexed: 12/04/2022] Open
Abstract
Difficulty understanding speech, particularly in situations unfavorable to communication, is a common complaint among elderly individuals. Objective To verify the variables connected to hearing loss and stimulus presentation rate and their impact on the speech recognition skills of elderly subjects in quiet and noisy environments. Method This case-control study included two groups of subjects (31 elderly subjects with normal hearing and 26 with hearing loss) exposed to the List of Sentences in Portuguese and the Slowed List of Sentences in Portuguese tests. Sentence recognition indices were calculated for tests done against noisy and quiet backgrounds at a normal and reduced speech rate. Data sets were submitted to statistical analysis. Results elderly subjects from both groups had better test results when sentences were played at a slower rate. Statistically significant difference was seen for both groups when the tests were carried out on a quiet background and for the group with hearing loss when tested on a noisy background. Conclusion regardless of their peripheral hearing, the elderly subjects included in this study were more able to recognize speech when sentences were played at a slower rate against a quiet background. When sentences were played against a noisy background, the elderly subjects with hearing loss had more significant performance improvements than the ones with normal hearing when sentences were played at a slower rate.
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Affiliation(s)
- Alexandre Hundertmarck Lessa
- MSc. in Human Communications Disorders, Federal University of Santa Maria (Ph.D Student, Human Communication Disorders, Federal University of Santa Maria; Scholarship Holder, FAPERGS/CAPES)
- Send correspondence to: Alexandre Hundertmarck Lessa. Rua Conde de Porto Alegre, no 961, apto. 801. Centro. Santa Maria - RS. Brasil. CEP: 97015-110
| | - Maristela Julio Costa
- PhD in Human Communication Disorder Sciences, Federal University of São Paulo (Adjunct Professor, Department of Speech and Hearing Therapy, Federal University of Santa Maria; Research Scholarship Holder - Level 2, CNPq). Federal University of Santa Maria - UFSM
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Manchaiah VKC, Stephens D, Andersson G, Rönnberg J, Lunner T. Use of the 'patient journey' model in the internet-based pre-fitting counseling of a person with hearing disability: study protocol for a randomized controlled trial. Trials 2013; 14:25. [PMID: 23347711 PMCID: PMC3561257 DOI: 10.1186/1745-6215-14-25] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Accepted: 01/04/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Hearing impairment is one of the most frequent chronic conditions. Persons with a hearing impairment (PHI) have various experiences during their 'journey' through hearing loss. In our previous studies we have developed a 'patient journey' model of PHI and their communication partners (CPs). We suggest this model could be useful in internet-based pre-fitting counseling of a person with hearing disability (PHD). METHODS/DESIGN A randomized controlled trial (RCT) with waiting list control (WLC) design will be used in this study. One hundred and fifty eight participants with self-reported hearing disability (that is, score > 20 in the Hearing Handicap Questionnaire (HHQ)) will be recruited to participate in this study. They will be assigned to one of two groups (79 participants in each group): (1) Information and counseling provision using the 'patient journey' model; and (2) WLC. They will participate in a 30 day (4 weeks) internet-based counseling program based on the 'patient journey' model. Various outcome measures which focuses on hearing disability, depression and anxiety, readiness to change and acceptance of hearing disability will be administered pre (one week before) and post (one week and six months after) intervention to evaluate the effectiveness of counseling. DISCUSSION Internet-based counseling is being introduced as a viable option for audiological rehabilitation. We predict that the 'patient journey' model will have several advantages during counseling of a PHD. Such a program, if proven effective, could yield cost and time-efficient ways of managing hearing disability. TRIAL REGISTRATION ClinicalTrials.gov Protocol Registration System NCT01611129.
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Affiliation(s)
- Vinaya K C Manchaiah
- Centre for Long Term and Chronic Conditions, College of Human and Health Sciences, Swansea University, Room 167, Glyndwr Building, Swansea SA2 8PP, United Kingdom.
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