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Inguscio BMS, Cartocci G, Sciaraffa N, Nicastri M, Giallini I, Aricò P, Greco A, Babiloni F, Mancini P. Two are better than one: Differences in cortical EEG patterns during auditory and visual verbal working memory processing between Unilateral and Bilateral Cochlear Implanted children. Hear Res 2024; 446:109007. [PMID: 38608331 DOI: 10.1016/j.heares.2024.109007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 03/28/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024]
Abstract
Despite the proven effectiveness of cochlear implant (CI) in the hearing restoration of deaf or hard-of-hearing (DHH) children, to date, extreme variability in verbal working memory (VWM) abilities is observed in both unilateral and bilateral CI user children (CIs). Although clinical experience has long observed deficits in this fundamental executive function in CIs, the cause to date is still unknown. Here, we have set out to investigate differences in brain functioning regarding the impact of monaural and binaural listening in CIs compared with normal hearing (NH) peers during a three-level difficulty n-back task undertaken in two sensory modalities (auditory and visual). The objective of this pioneering study was to identify electroencephalographic (EEG) marker pattern differences in visual and auditory VWM performances in CIs compared to NH peers and possible differences between unilateral cochlear implant (UCI) and bilateral cochlear implant (BCI) users. The main results revealed differences in theta and gamma EEG bands. Compared with hearing controls and BCIs, UCIs showed hypoactivation of theta in the frontal area during the most complex condition of the auditory task and a correlation of the same activation with VWM performance. Hypoactivation in theta was also observed, again for UCIs, in the left hemisphere when compared to BCIs and in the gamma band in UCIs compared to both BCIs and NHs. For the latter two, a correlation was found between left hemispheric gamma oscillation and performance in the audio task. These findings, discussed in the light of recent research, suggest that unilateral CI is deficient in supporting auditory VWM in DHH. At the same time, bilateral CI would allow the DHH child to approach the VWM benchmark for NH children. The present study suggests the possible effectiveness of EEG in supporting, through a targeted approach, the diagnosis and rehabilitation of VWM in DHH children.
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Affiliation(s)
- Bianca Maria Serena Inguscio
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, Rome 00161, Italy; BrainSigns Srl, Via Tirso, 14, Rome 00198, Italy.
| | - Giulia Cartocci
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, Rome 00161, Italy; BrainSigns Srl, Via Tirso, 14, Rome 00198, Italy
| | | | - Maria Nicastri
- Department of Sense Organs, Sapienza University of Rome, Viale dell'Università 31, Rome 00161, Italy
| | - Ilaria Giallini
- Department of Sense Organs, Sapienza University of Rome, Viale dell'Università 31, Rome 00161, Italy
| | - Pietro Aricò
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, Rome 00161, Italy; BrainSigns Srl, Via Tirso, 14, Rome 00198, Italy; Department of Computer, Control, and Management Engineering "Antonio Ruberti", Sapienza University of Rome, Via Ariosto 125, Rome 00185, Italy
| | - Antonio Greco
- Department of Sense Organs, Sapienza University of Rome, Viale dell'Università 31, Rome 00161, Italy
| | - Fabio Babiloni
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 291, Rome 00161, Italy; BrainSigns Srl, Via Tirso, 14, Rome 00198, Italy; Department of Computer Science, Hangzhou Dianzi University, Xiasha Higher Education Zone, Hangzhou 310018, China
| | - Patrizia Mancini
- Department of Sense Organs, Sapienza University of Rome, Viale dell'Università 31, Rome 00161, Italy
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Zhao R, Yue T, Xu Z, Zhang Y, Wu Y, Bai Y, Ni G, Ming D. Electroencephalogram-based objective assessment of cognitive function level associated with age-related hearing loss. GeroScience 2024; 46:431-446. [PMID: 37273160 PMCID: PMC10828275 DOI: 10.1007/s11357-023-00847-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 05/29/2023] [Indexed: 06/06/2023] Open
Abstract
Age-Related Hearing Loss (ARHL) is a common problem in aging. Numerous longitudinal cohort studies have revealed that ARHL is closely related to cognitive function, leading to a significant risk of cognitive decline and dementia. This risk gradually increases with the severity of hearing loss. We designed dual auditory Oddball and cognitive task paradigms for the ARHL subjects, then obtained the Montreal Cognitive Assessment (MoCA) scale evaluation results for all the subjects. Multi-dimensional EEG characteristics helped explore potential biomarkers to evaluate the cognitive level of the ARHL group, having a significantly lower P300 peak amplitude coupled with a prolonged latency. Moreover, visual memory, auditory memory, and logical calculation were investigated during the cognitive task paradigm. In the ARHL groups, the alpha-to-beta rhythm energy ratio in the visual and auditory memory retention period and the wavelet packet entropy value within the logical calculation period were significantly reduced. Correlation analysis between the above specificity indicators and the subjective scale results of the ARHL group revealed that the auditory P300 component characteristics could assess attention resources and information processing speed. The alpha and beta rhythm energy ratio and wavelet packet entropy can become potential indicators to determine working memory and logical cognitive computation-related cognitive ability.
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Affiliation(s)
- Ran Zhao
- Academy of Medical Engineering and Translational Medicine, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, China
- Tianjin Key Laboratory of Brain Science and Neuroengineering, Tianjin, 300072, China
- Haihe Laboratory of Brain-Computer Interaction and Human-Machine Integration, Tianjin, 300392, China
| | - Tao Yue
- Academy of Medical Engineering and Translational Medicine, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, China
| | - Zihao Xu
- Academy of Medical Engineering and Translational Medicine, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, China
| | - Yunqi Zhang
- School of Education, Tianjin University, Tianjin, China
| | - Yubo Wu
- Academy of Medical Engineering and Translational Medicine, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, China
| | - Yanru Bai
- Academy of Medical Engineering and Translational Medicine, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, China.
- Tianjin Key Laboratory of Brain Science and Neuroengineering, Tianjin, 300072, China.
- Haihe Laboratory of Brain-Computer Interaction and Human-Machine Integration, Tianjin, 300392, China.
| | - Guangjian Ni
- Academy of Medical Engineering and Translational Medicine, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, China.
- Tianjin Key Laboratory of Brain Science and Neuroengineering, Tianjin, 300072, China.
- Haihe Laboratory of Brain-Computer Interaction and Human-Machine Integration, Tianjin, 300392, China.
| | - Dong Ming
- Academy of Medical Engineering and Translational Medicine, Tianjin University, No. 92, Weijin Road, Nankai District, Tianjin, China
- Tianjin Key Laboratory of Brain Science and Neuroengineering, Tianjin, 300072, China
- Haihe Laboratory of Brain-Computer Interaction and Human-Machine Integration, Tianjin, 300392, China
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De Oliveira ACS, Alcântara YB, De Góes VB, Menezes PDL, Chagas EFB, Machado MS, Frizzo ACF. Study of aged central auditory function using the auditory middle latency response. Clinics (Sao Paulo) 2023; 78:100245. [PMID: 37478629 PMCID: PMC10387568 DOI: 10.1016/j.clinsp.2023.100245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 06/05/2023] [Accepted: 06/19/2023] [Indexed: 07/23/2023] Open
Abstract
OBJECTIVE Investigate the auditory function of the elderly using the middle latency potentials. METHODOLOGY Group 1 (G1): 20 healthy individuals of both genders, older than 60 years, without hearing loss. Group 2 (G2): 20 healthy individuals of both sexes, older than 60 years, with hearing loss in frequencies from 4 to 8 kHz. Potential recording was performed with unilateral and bilateral stimulation and the Binaural Interaction Component was calculated. RESULTS Na latency in C3A1 was greater in the stimulation of the right ear in G2 and the amplitude of Na-Pa was greater in the stimulation of the right ear and recording in C3A1 in G1. The latency of the Pa component was higher in the stimulation of the right ear recorded in C4A2. The Pb component in G2 by bilateral stimulation and recorded in C4A2 had higher latency. The first and second negative and positive peaks presented greater amplitude in G1. In C3A1, the 1st negative peak was more negative in G1 and the 2nd positive peak showed greater amplitude in C4A2 in both groups. CONCLUSION The transmission of auditory information to the primary auditory cortex is impaired with aging, especially in unilateral stimulation, reinforced by losses in elderly people with peripheral hearing loss, such as in the binaural interaction at the cortical and subcortical levels. Thus, the AMLR has shown to be a sensitive examination to investigate neuroauditory disorders in the elderly, especially related to high-frequency hearing loss and primary auditory cortex dysfunctions caused by the aging process.
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Affiliation(s)
| | - Yara Bagali Alcântara
- Postgraduate Program, Faculty of Philosophy and Sciences (FFC), Universidade Estadual Paulista (UNESP), Marília, SP, Brazil
| | - Viviane Borim De Góes
- Postgraduate Program, Faculty of Philosophy and Sciences (FFC), Universidade Estadual Paulista (UNESP), Marília, SP, Brazil
| | - Pedro de Lemos Menezes
- Postgraduate at Program of the Northeast Network of Biotechnology (RENORBIO), Universidade Federal Rural de Pernambuco (UFRPE), Recife, PE, Brazil; Program Research in Health, Centro Universitário CESMAC, Macéio, AL, Brazil; Speech Language Pathology Department, Universidade Estadual de Ciências da Saúde de Alagoas (UNCISAL), Macéio, AL, Brazil
| | - Eduardo Federighi Baisi Chagas
- Postgraduate Program in Structural and Functional Interactions in Rehabilitation, Universidade de Marília (UNIMAR), Marília, SP, Brazil; Postgraduate Program, Faculdade de Medicina da Marília (FAMEMA), Marília, SP, Brazil
| | - Milena Sonsini Machado
- Postgraduate Program, Faculty of Philosophy and Sciences (FFC), Universidade Estadual Paulista (UNESP), Marília, SP, Brazil
| | - Ana Claudia Figueiredo Frizzo
- Speech Language Pathology Department and Graduate Program in Speech Language Pathology, Faculdade de Filosofia e Ciências (FFC), Universidade Estadual Paulista (UNESP), Marília, SP, Brazil.
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Johne M, Helgers SOA, Alam M, Jelinek J, Hubka P, Krauss JK, Scheper V, Kral A, Schwabe K. Processing of auditory information in forebrain regions after hearing loss in adulthood: Behavioral and electrophysiological studies in a rat model. Front Neurosci 2022; 16:966568. [DOI: 10.3389/fnins.2022.966568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 10/20/2022] [Indexed: 11/12/2022] Open
Abstract
BackgroundHearing loss was proposed as a factor affecting development of cognitive impairment in elderly. Deficits cannot be explained primarily by dysfunctional neuronal networks within the central auditory system. We here tested the impact of hearing loss in adult rats on motor, social, and cognitive function. Furthermore, potential changes in the neuronal activity in the medial prefrontal cortex (mPFC) and the inferior colliculus (IC) were evaluated.Materials and methodsIn adult male Sprague Dawley rats hearing loss was induced under general anesthesia with intracochlear injection of neomycin. Sham-operated and naive rats served as controls. Postsurgical acoustically evoked auditory brainstem response (ABR)-measurements verified hearing loss after intracochlear neomycin-injection, respectively, intact hearing in sham-operated and naive controls. In intervals of 8 weeks and up to 12 months after surgery rats were tested for locomotor activity (open field) and coordination (Rotarod), for social interaction and preference, and for learning and memory (4-arms baited 8-arms radial maze test). In a final setting, electrophysiological recordings were performed in the mPFC and the IC.ResultsLocomotor activity did not differ between deaf and control rats, whereas motor coordination on the Rotarod was disturbed in deaf rats (P < 0.05). Learning the concept of the radial maze test was initially disturbed in deaf rats (P < 0.05), whereas retesting every 8 weeks did not show long-term memory deficits. Social interaction and preference was also not affected by hearing loss. Final electrophysiological recordings in anesthetized rats revealed reduced firing rates, enhanced irregular firing, and reduced oscillatory theta band activity (4–8 Hz) in the mPFC of deaf rats as compared to controls (P < 0.05). In the IC, reduced oscillatory theta (4–8 Hz) and gamma (30–100 Hz) band activity was found in deaf rats (P < 0.05).ConclusionMinor and transient behavioral deficits do not confirm direct impact of long-term hearing loss on cognitive function in rats. However, the altered neuronal activities in the mPFC and IC after hearing loss indicate effects on neuronal networks in and outside the central auditory system with potential consequences on cognitive function.
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Köse B, Karaman-Demirel A, Çiprut A. Psychoacoustic abilities in pediatric cochlear implant recipients: The relation with short-term memory and working memory capacity. Int J Pediatr Otorhinolaryngol 2022; 162:111307. [PMID: 36116181 DOI: 10.1016/j.ijporl.2022.111307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 08/30/2022] [Accepted: 08/31/2022] [Indexed: 11/25/2022]
Abstract
OBJECTIVE The aim was to investigate school-age children with cochlear implants (CIs) and their typically developing peers in terms of auditory short-term memory (ASTM), auditory working memory (AWM), visuospatial short-term memory (VSTM), visuospatial working memory (VWM), spectral resolution and monosyllabic word recognition in noise. METHODS Twenty-three prelingually deaf CI users and twenty-three typically developing (TD) peers aged 7-10 years participated. Twelve children with CI were earlier-implanted (i.e., age at implantation ≤24 months). Children with CIs were compared to typically developing peers and correlations between cognitive and psychoacoustic abilities were computed separately for the groups. Besides, regression analyses were conducted to develop models that could predict SMRT (spectral-temporally modulated ripple test) and speech recognition scores. RESULTS The AWM scores of the later-implanted group were significantly lower than both earlier-implanted and TD groups. ASTM scores of TD children were significantly higher than both earlier-implanted and later-implanted participants. There was no statistically significant difference between groups in terms of VSTM and VWM. AWM performance was positively correlated with ASTM, SMRT scores, and speech recognition under noisy conditions for pediatric CI recipients. The AWM was a statistically significant predictor of the SMRT score and the SMRT score was an indicator of speech recognition score under 0 dB SNR condition. CONCLUSION Most of children using CI are at risk for clinically remarkable deficits across cognitive abilities such as AWM and ASTM. While evaluating cognitive and psychoacoustic abilities in the clinic routine, it should be kept in mind that they can be influenced by each other.
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Affiliation(s)
- Büşra Köse
- Department of Audiology, School of Medicine, Marmara University, Istanbul, Turkey; Koç University Research Center for Translational Medicine (KUTTAM), Istanbul, Turkey.
| | - Ayşenur Karaman-Demirel
- Department of Audiology, School of Medicine, Marmara University, Istanbul, Turkey; Vocational School of Health Services, Okan University, Istanbul, Turkey
| | - Ayça Çiprut
- Department of Audiology, School of Medicine, Marmara University, Istanbul, Turkey
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Powell DS, Oh ES, Reed NS, Lin FR, Deal JA. Hearing Loss and Cognition: What We Know and Where We Need to Go. Front Aging Neurosci 2022; 13:769405. [PMID: 35295208 PMCID: PMC8920093 DOI: 10.3389/fnagi.2021.769405] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 10/29/2021] [Indexed: 12/29/2022] Open
Abstract
Although a causal association remains to be determined, epidemiologic evidence suggests an association between hearing loss and increased risk of dementia. If we determine the association is causal, opportunity for targeted intervention for hearing loss may play a fundamental role in dementia prevention. In this discussion, we summarize current research on the association between hearing loss and dementia and review potential casual mechanisms behind the association (e.g., sensory-deprivation hypothesis, information-degradation hypothesis, common cause). We emphasize key areas of research which might best inform our investigation of this potential casual association. These selected research priorities include examination of the causal mechanism, measurement of co-existing hearing loss and cognitive impairment and determination of any bias in testing, potential for managing hearing loss for prevention of dementia and cognitive decline, or the potential to reduce dementia-related symptoms through the management of hearing loss. Addressing these research gaps and how results are then translated for clinical use may prove paramount for dementia prevention, management, and overall health of older adults.
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Affiliation(s)
- Danielle S Powell
- Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.,Cochlear Center for Hearing and Public Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Esther S Oh
- Cochlear Center for Hearing and Public Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.,Division of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Nicholas S Reed
- Cochlear Center for Hearing and Public Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.,Department of Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Frank R Lin
- Cochlear Center for Hearing and Public Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.,Department of Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Jennifer A Deal
- Cochlear Center for Hearing and Public Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.,Department of Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
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Yue T, Chen Y, Zheng Q, Xu Z, Wang W, Ni G. Screening Tools and Assessment Methods of Cognitive Decline Associated With Age-Related Hearing Loss: A Review. Front Aging Neurosci 2021; 13:677090. [PMID: 34335227 PMCID: PMC8316923 DOI: 10.3389/fnagi.2021.677090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 06/24/2021] [Indexed: 12/13/2022] Open
Abstract
Strong links between hearing and cognitive function have been confirmed by a growing number of cross-sectional and longitudinal studies. Seniors with age-related hearing loss (ARHL) have a significantly higher cognitive impairment incidence than those with normal hearing. The correlation mechanism between ARHL and cognitive decline is not fully elucidated to date. However, auditory intervention for patients with ARHL may reduce the risk of cognitive decline, as early cognitive screening may improve related treatment strategies. Currently, clinical audiology examinations rarely include cognitive screening tests, partly due to the lack of objective quantitative indicators with high sensitivity and specificity. Questionnaires are currently widely used as a cognitive screening tool, but the subject's performance may be negatively affected by hearing loss. Numerous electroencephalogram (EEG) and magnetic resonance imaging (MRI) studies analyzed brain structure and function changes in patients with ARHL. These objective electrophysiological tools can be employed to reveal the association mechanism between auditory and cognitive functions, which may also find biological markers to be more extensively applied in assessing the progression towards cognitive decline and observing the effects of rehabilitation training for patients with ARHL. In this study, we reviewed clinical manifestations, pathological changes, and causes of ARHL and discussed their cognitive function effects. Specifically, we focused on current cognitive screening tools and assessment methods and analyzed their limitations and potential integration.
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Affiliation(s)
- Tao Yue
- Department of Biomedical Engineering, College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China
- Tianjin International Engineering Institute, Tianjin University, Tianjin, China
| | - Yu Chen
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Central Hospital, Tianjin, China
| | - Qi Zheng
- Department of Biomedical Engineering, College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China
| | - Zihao Xu
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Wei Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin First Central Hospital, Tianjin, China
| | - Guangjian Ni
- Department of Biomedical Engineering, College of Precision Instruments and Optoelectronics Engineering, Tianjin University, Tianjin, China
- Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
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Powell DS, Oh ES, Lin FR, Deal JA. Hearing Impairment and Cognition in an Aging World. J Assoc Res Otolaryngol 2021; 22:387-403. [PMID: 34008037 PMCID: PMC8329135 DOI: 10.1007/s10162-021-00799-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 03/24/2021] [Indexed: 12/18/2022] Open
Abstract
With the increasing number of older adults around the world, the overall number of dementia cases is expected to rise dramatically in the next 40 years. In 2020, nearly 6 million individuals in the USA were living with Alzheimer's disease, the most common type of dementia, with anticipated growth to nearly 14 million by year 2050. This increasing prevalence, coupled with high societal burden, makes prevention and intervention of dementia a medical and public health priority. As clinicians and researchers, we will continue to see more individuals with hearing loss with other comorbidities including dementia. Epidemiologic evidence suggests an association between hearing loss and increased risk of dementia, presenting opportunity for targeted intervention for hearing loss to play a fundamental role in dementia prevention. In this discussion, we summarize current research on the association between hearing loss and dementia and review potential casual mechanisms behind the association (e.g., sensory-deprivation hypothesis, information-degradation hypothesis, common cause). We emphasize key areas of research which might best inform our investigation of this potential casual association. These selected research priorities include examination of the causal mechanism, measurement of co-existing hearing loss and cognitive impairment, and potential of aural rehabilitation. Addressing these research gaps and how results are then translated for clinical use is paramount for dementia prevention and overall health of older adults.
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Affiliation(s)
- Danielle S Powell
- Department, of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
- Center on Aging and Health, Johns Hopkins University, Baltimore, MD, USA.
- Cochlear Center for Hearing and Public Health, Health, Johns Hopkins Bloomberg School of Public, Baltimore, MD, USA.
| | - Esther S Oh
- Cochlear Center for Hearing and Public Health, Health, Johns Hopkins Bloomberg School of Public, Baltimore, MD, USA
- Division of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Frank R Lin
- Department, of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Center on Aging and Health, Johns Hopkins University, Baltimore, MD, USA
- Cochlear Center for Hearing and Public Health, Health, Johns Hopkins Bloomberg School of Public, Baltimore, MD, USA
- Department of Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jennifer A Deal
- Department, of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Cochlear Center for Hearing and Public Health, Health, Johns Hopkins Bloomberg School of Public, Baltimore, MD, USA
- Department of Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Phonetic perception but not perception of speaker gender is impaired in chronic tinnitus. PROGRESS IN BRAIN RESEARCH 2021; 260:397-422. [PMID: 33637229 DOI: 10.1016/bs.pbr.2020.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
While tinnitus is known to compromise the perception of speech, it is unclear if the same holds for extralinguistic speaker information. Furthermore, research with simple tone stimuli showed that unilateral tinnitus binds spatial attention, thereby impeding the detection of auditory changes in the non-affected ear. Using dichotic listening tasks, we tested left-ear tinnitus patients and control patients for their ability to ignore speech and speaker information in the task-irrelevant ear. To this end they heard vowel-consonant-vowel (VCV) syllables simultaneously spoken by gender-ambiguous voices in one ear and male or female voices in the contralateral ear. They selectively attended to speech (Exp. 1) or speaker (Exp. 2) information in a designated target ear, by classifying either the consonant (/b/ or /g/) in VCV syllables or voice gender (male or female) while ignoring distractor voices in the other ear. While performance was comparable across groups in the gender task, tinnitus patients responded slower than controls in the consonant task, with no effect of target ear. This suggests that tinnitus hampers phonetic perception in speech, while preserving the processing of extralinguistic speaker information. These findings support the growing evidence for speech perception impairments in tinnitus.
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Vogelzang M, Thiel CM, Rosemann S, Rieger JW, Ruigendijk E. When Hearing Does Not Mean Understanding: On the Neural Processing of Syntactically Complex Sentences by Listeners With Hearing Loss. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2021; 64:250-262. [PMID: 33400550 DOI: 10.1044/2020_jslhr-20-00262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Purpose Adults with mild-to-moderate age-related hearing loss typically exhibit issues with speech understanding, but their processing of syntactically complex sentences is not well understood. We test the hypothesis that listeners with hearing loss' difficulties with comprehension and processing of syntactically complex sentences are due to the processing of degraded input interfering with the successful processing of complex sentences. Method We performed a neuroimaging study with a sentence comprehension task, varying sentence complexity (through subject-object order and verb-arguments order) and cognitive demands (presence or absence of a secondary task) within subjects. Groups of older subjects with hearing loss (n = 20) and age-matched normal-hearing controls (n = 20) were tested. Results The comprehension data show effects of syntactic complexity and hearing ability, with normal-hearing controls outperforming listeners with hearing loss, seemingly more so on syntactically complex sentences. The secondary task did not influence off-line comprehension. The imaging data show effects of group, sentence complexity, and task, with listeners with hearing loss showing decreased activation in typical speech processing areas, such as the inferior frontal gyrus and superior temporal gyrus. No interactions between group, sentence complexity, and task were found in the neuroimaging data. Conclusions The results suggest that listeners with hearing loss process speech differently from their normal-hearing peers, possibly due to the increased demands of processing degraded auditory input. Increased cognitive demands by means of a secondary visual shape processing task influence neural sentence processing, but no evidence was found that it does so in a different way for listeners with hearing loss and normal-hearing listeners.
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Affiliation(s)
- Margreet Vogelzang
- Institute of Dutch Studies, Carl von Ossietzky University of Oldenburg, Germany
- Cluster of Excellence "Hearing4all", Carl von Ossietzky University of Oldenburg, Germany
| | - Christiane M Thiel
- Cluster of Excellence "Hearing4all", Carl von Ossietzky University of Oldenburg, Germany
- Biological Psychology Lab, Department of Psychology, Faculty of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Germany
| | - Stephanie Rosemann
- Cluster of Excellence "Hearing4all", Carl von Ossietzky University of Oldenburg, Germany
- Biological Psychology Lab, Department of Psychology, Faculty of Medicine and Health Sciences, Carl von Ossietzky University of Oldenburg, Germany
| | - Jochem W Rieger
- Cluster of Excellence "Hearing4all", Carl von Ossietzky University of Oldenburg, Germany
- Applied Neurocognitive Psychology Lab, Department of Psychology, Carl von Ossietzky University of Oldenburg, Germany
| | - Esther Ruigendijk
- Institute of Dutch Studies, Carl von Ossietzky University of Oldenburg, Germany
- Cluster of Excellence "Hearing4all", Carl von Ossietzky University of Oldenburg, Germany
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11
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Developing the computer-based auditory training program for adults with hearing impairment. Med Biol Eng Comput 2021; 59:175-186. [PMID: 33400137 DOI: 10.1007/s11517-020-02298-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 12/18/2020] [Indexed: 10/22/2022]
Abstract
Although it is known that auditory training is essential for hearing-impaired individuals, patients do not willingly participate in auditory training sessions, because individual training is a time-consuming and costly process. Computer-based auditory training programs are under development for reducing the cost and time. The aim of this study is to develop a computer-based auditory training program and to evaluate the usability of the program by applying it to adults with normal hearing indifferent age groups and professions. The developed auditory training program consists of nine modules: identification, discrimination, recognition, auditory closure, comprehension, auditory sequencing, phonological awareness, auditory memory, and attention. Forty adults (age ranges of 25-34, 35-44, 45-54, and 55-65 years), nine audiologists, and one software engineer were included in this study. The computer-based auditory training program was applied to all individuals. An evaluation form was filled out by the participants to evaluate the usability of and satisfaction with the program, and the average performances of the individuals were calculated for each module. The form measures five usability subscales: ease of use, comprehensibility, design, satisfaction, and motivation. The professionals evaluated the program and found it to be quite positive in terms of design, ease of use, motivation, and comprehensibility, and positive in terms of the satisfaction subscale. The participants evaluated all factors and found them to be quite positive. There were no statistically significant differences between the gender, age, and computer use groups in terms of the average performance value of the modules (p > 0.05). However, a significant difference was found in the average performance for the auditory sequencing module considering the educational status of individuals (p = 0.019). Furthermore, it was determined that computer experience (> 5 years) and having a personal computer have a significant effect on auditory memory (p = 0.049) and identification (p = 0.027). These results show that the instructions and information used in the program are clear and understandable, the colors and texts used in the program are readable, the program is easy to use, and the individuals are not disturbed by the sounds used in the program. However, it would be valuable to apply it to individuals with hearing losses to evaluate the efficacy of the program.
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Campbell J, Sharma A. Frontal Cortical Modulation of Temporal Visual Cross-Modal Re-organization in Adults with Hearing Loss. Brain Sci 2020; 10:brainsci10080498. [PMID: 32751543 PMCID: PMC7465622 DOI: 10.3390/brainsci10080498] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/24/2020] [Accepted: 07/27/2020] [Indexed: 11/19/2022] Open
Abstract
Recent research has demonstrated frontal cortical involvement to co-occur with visual re-organization, suggestive of top-down modulation of cross-modal mechanisms. However, it is unclear whether top-down modulation of visual re-organization takes place in mild hearing loss, or is dependent upon greater degrees of hearing loss severity. Thus, the purpose of this study was to determine if frontal top-down modulation of visual cross-modal re-organization increased across hearing loss severity. We recorded visual evoked potentials (VEPs) in response to apparent motion stimuli in 17 adults with mild-moderate hearing loss using 128-channel high-density electroencephalography (EEG). Current density reconstructions (CDRs) were generated using sLORETA to visualize VEP generators in both groups. VEP latency and amplitude in frontal regions of interest (ROIs) were compared between groups and correlated with auditory behavioral measures. Activation of frontal networks in response to visual stimulation increased across mild to moderate hearing loss, with simultaneous activation of the temporal cortex. In addition, group differences in VEP latency and amplitude correlated with auditory behavioral measures. Overall, these findings support the hypothesis that frontal top-down modulation of visual cross-modal re-organization is dependent upon hearing loss severity.
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Affiliation(s)
- Julia Campbell
- Central Sensory Processes Laboratory, Department of Communication Sciences and Disorders, University of Texas at Austin, 2504 Whitis Ave a1100, Austin, TX 78712, USA;
| | - Anu Sharma
- Anu Sharma, Brain and Behavior Laboratory, Institute of Cognitive Science, Department of Speech, Language and Hearing Science, University of Colorado at Boulder, 409 UCB, 2501 Kittredge Loop Drive, Boulder, CO 80309, USA
- Correspondence:
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13
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O'Brien JL, Lister JJ, Fausto BA, Morgan DG, Maeda H, Andel R, Edwards JD. Are auditory processing and cognitive performance assessments overlapping or distinct? Parsing the auditory behaviour of older adults. Int J Audiol 2020; 60:123-132. [PMID: 32701036 DOI: 10.1080/14992027.2020.1791366] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Auditory processing predicts cognitive decline, including dementia, in older adults. Auditory processing involves the understanding, interpretation, and communication of auditory information. Cognition is linked to auditory processing; however, it is disputed whether auditory processing is a separate construct distinct from cognition. The purpose of this study was to determine if auditory processing is distinct from cognition in older adults. DESIGN Participants completed 14 cognitive and auditory processing assessments. Assessments were subjected to exploratory factor analysis with principal components extraction and varimax rotation with Kaiser normalisation. Study sample: 213 community-dwelling older adults (M = 71.39 years, 57% female, 93% Caucasian, M = 16 years education) with and without mild cognitive impairment (MCI) participated. RESULTS Four factors were identified, explaining 66.3% of the total variance: (1) executive functions, visual processing speed, and dichotic auditory processing, (2) auditory processing of degraded speech, (3) memory, and (4) auditory temporal processing of nonspeech. CONCLUSIONS Two domains of auditory processing (processing degraded speech and temporal processing) account for unique variance to which cognitive measures are not sensitive, while measures of auditory dichotic processing appear to be tapping similar abilities as measures of cognition. Older adults who perform poorly on dichotic measures should be screened for cognitive impairment.
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Affiliation(s)
- Jennifer L O'Brien
- Department of Psychology, University of South Florida, St. Petersburg, FL, USA
| | - Jennifer J Lister
- Department of Communication Sciences and Disorders, University of South Florida, Tampa, FL, USA
| | - Bernadette A Fausto
- Center for Molecular and Behavioral Neuroscience, Rutgers University Newark, Newark, NJ, USA
| | - David G Morgan
- Translational Science and Molecular Medicine, Michigan State University, Grand Rapids, MI, USA
| | - Hannah Maeda
- Department of Communication Sciences and Disorders, University of South Florida, Tampa, FL, USA
| | - Ross Andel
- School of Aging Studies, University of South Florida, Tampa, FL, USA
| | - Jerri D Edwards
- Department of Psychiatry and Behavioral Neurosciences, University of South Florida, Tampa, FL, USA
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14
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Alhazmi FH. White-matter integrity and hearing acuity decline in healthy subjects: Magnetic resonance tractography. Neuroradiol J 2020; 33:236-243. [PMID: 32216576 DOI: 10.1177/1971400920913868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AIM The association between hearing acuity and white-matter (WM) microstructure integrity was evaluated in a normal healthy population with a variety of hearing acuity using an automated tractography technique known as TRACULA (TRActs Constrained by UnderLying Anatomy) in order to investigate whether hearing acuity decline is correlated with brain structural connectivity. METHODS Forty healthy controls were recruited to this study, which used a Siemens 3T Trio with a standard eight-channel head coil. Hearing acuity was assessed using pure-tone air conduction audiometry (Amplivox 2160, with Audiocups to eliminate noise and allow accurate pure-tone audiometry). Handedness and anxiety and depression were assessed for all participants in this study using the Edinburgh Handedness Inventory and the Hospital Anxiety and Depression Scale, respectively. RESULTS This study showed a significant reduction in WM volume of the left cingulum angular bundle (CAB; t = 2.32, p = 0.02) in the mild to moderate hearing-loss group (238 ± 223 mm2) compared to the group with normal hearing (105 ± 121 mm2). The WM integrity of the left CAB was found to be significantly different (t = 2.06, p = 0.04) in the mild to moderate hearing-loss group (0.18 ± 0.06 mm2/s) compared to the group with normal hearing (0.22 ± 0.05 mm2/s). The WM integrity of the left anterior thalamic radiation (ATR) was found to be significantly different (t = 2.58, p = 0.014) in the mild to moderate hearing-loss group (0.33 ± 0.05 mm2/s) compared to the group with normal hearing (0.37 ± 0.03 mm2/s). A significant negative correlation was found between age and the WM integrity of the right ATR (r = -0.33, p = 0.038), and between hearing acuity and the WM integrity of the right ATR (r = -0.38, p = 0.013) and left CAB (r = -0.36, p = 0.019). Discussion and conclusion: An important finding in this study is that brain structural connectivity changes in the left hemisphere seem to be associated with age-related hearing loss found mainly in the ATR and CAB tracts.
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Affiliation(s)
- Fahad H Alhazmi
- Department of Diagnostic Radiology Technology, College of Applied Medical Sciences, Taibah Univeristy, Madinah, Saudi Arabia.,Institute of Translational Medicine, Faculty of Health and Life Sciences, University of Liverpool, UK
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15
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Payne BR, Ng S, Shantz K, Federmeier KD. Event-related brain potentials in multilingual language processing: The N's and P's. PSYCHOLOGY OF LEARNING AND MOTIVATION 2020. [DOI: 10.1016/bs.plm.2020.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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16
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Huber M, Roesch S, Pletzer B, Lukaschyk J, Lesinski-Schiedat A, Illg A. Cognition in older adults with severe to profound sensorineural hearing loss compared to peers with normal hearing for age. Int J Audiol 2019; 59:254-262. [DOI: 10.1080/14992027.2019.1687947] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Maria Huber
- Department of Otorhinolaryngology, Head and Neck Surgery, Paracelsus Medical University Salzburg, Salzburg, Austria
| | - Sebastian Roesch
- Department of Otorhinolaryngology, Head and Neck Surgery, Paracelsus Medical University Salzburg, Salzburg, Austria
| | - Belinda Pletzer
- Department of Psychology, Center for Neurocognitive Research, University of Salzburg, Salzburg, Austria
| | - Julia Lukaschyk
- Department of Otorhinolaryngology, Hannover Medical University, Hannover, Germany
| | | | - Angelika Illg
- Department of Otorhinolaryngology, Hannover Medical University, Hannover, Germany
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Sayed SZ, Mounir SM, Mohamed AAH, Nabil AM, Hassan MH. Assessment of psychological disorders in Egyptian children with hearing impairment. Sudan J Paediatr 2018; 18:25-32. [PMID: 30799895 DOI: 10.24911/sjp.106-1531768895] [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: 11/11/2022]
Abstract
Impairment of hearing is a common birth defect which may be associated with varieties of psychological abnormalities in childhood. Knowledge and research of such issue are much lacking in Egypt; so the aim of the current study was to characterize and assess various psychological co-morbidities which could occur among hearing-impaired children. This prospective study has been conducted on a total of 40 male children, with age range between 7 and 12 years, divided into two groups. Group I included 20 children with different degrees of hearing impairment (HI), and Group II included 20 age-matched, healthy children with normal hearing. The studied children have been recruited from two schools (Al Amal School for the Deaf and Dumb, and Copts School) at Minia City, Minia Governorate, Egypt. Psychometric assessment, electroencephalography (EEG), and audiological evaluation were done for all included children. EEG abnormalities and anxiety scores were significantly higher in patients group compared with controls (p < 0.05); however, intelligence quotient did not differ. The present study revealed that HI is associated with psychological and EEG abnormalities. Early management of these children is expected to improve their quality of life.
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Affiliation(s)
- Samira Zein Sayed
- Pediatrics Department, Faculty of Medicine, Minia University, Minya, Egypt
| | | | | | - Amr Mohammed Nabil
- Pediatrics Department, Faculty of Medicine, Minia University, Minya, Egypt
| | - Mohammed H Hassan
- Medical Biochemistry Department, Faculty of Medicine, South Valley University, Qena, Egypt
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18
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Teichert M, Bolz J. Simultaneous intrinsic signal imaging of auditory and visual cortex reveals profound effects of acute hearing loss on visual processing. Neuroimage 2017; 159:459-472. [DOI: 10.1016/j.neuroimage.2017.07.037] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/08/2017] [Accepted: 07/18/2017] [Indexed: 12/29/2022] Open
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Giroud N, Hirsiger S, Muri R, Kegel A, Dillier N, Meyer M. Neuroanatomical and resting state EEG power correlates of central hearing loss in older adults. Brain Struct Funct 2017; 223:145-163. [DOI: 10.1007/s00429-017-1477-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 07/11/2017] [Indexed: 02/02/2023]
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20
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Glick H, Sharma A. Cross-modal plasticity in developmental and age-related hearing loss: Clinical implications. Hear Res 2017; 343:191-201. [PMID: 27613397 PMCID: PMC6590524 DOI: 10.1016/j.heares.2016.08.012] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 08/16/2016] [Accepted: 08/19/2016] [Indexed: 10/21/2022]
Abstract
This review explores cross-modal cortical plasticity as a result of auditory deprivation in populations with hearing loss across the age spectrum, from development to adulthood. Cross-modal plasticity refers to the phenomenon when deprivation in one sensory modality (e.g. the auditory modality as in deafness or hearing loss) results in the recruitment of cortical resources of the deprived modality by intact sensory modalities (e.g. visual or somatosensory systems). We discuss recruitment of auditory cortical resources for visual and somatosensory processing in deafness and in lesser degrees of hearing loss. We describe developmental cross-modal re-organization in the context of congenital or pre-lingual deafness in childhood and in the context of adult-onset, age-related hearing loss, with a focus on how cross-modal plasticity relates to clinical outcomes. We provide both single-subject and group-level evidence of cross-modal re-organization by the visual and somatosensory systems in bilateral, congenital deafness, single-sided deafness, adults with early-stage, mild-moderate hearing loss, and individual adult and pediatric patients exhibit excellent and average speech perception with hearing aids and cochlear implants. We discuss a framework in which changes in cortical resource allocation secondary to hearing loss results in decreased intra-modal plasticity in auditory cortex, accompanied by increased cross-modal recruitment of auditory cortices by the other sensory systems, and simultaneous compensatory activation of frontal cortices. The frontal cortices, as we will discuss, play an important role in mediating cognitive compensation in hearing loss. Given the wide range of variability in behavioral performance following audiological intervention, changes in cortical plasticity may play a valuable role in the prediction of clinical outcomes following intervention. Further, the development of new technologies and rehabilitation strategies that incorporate brain-based biomarkers may help better serve hearing impaired populations across the lifespan.
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Affiliation(s)
- Hannah Glick
- Department of Speech, Language, & Hearing Science; Institute of Cognitive Science, University of Colorado at Boulder, 2501 Kittredge Loop Road, 409 UCB, Boulder, CO 80309, USA
| | - Anu Sharma
- Department of Speech, Language, & Hearing Science; Institute of Cognitive Science, University of Colorado at Boulder, 2501 Kittredge Loop Road, 409 UCB, Boulder, CO 80309, USA.
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21
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Varma VR, Hausdorff JM, Studenski SA, Rosano C, Camicioli R, Alexander NB, Chen WG, Lipsitz LA, Carlson MC. Aging, the Central Nervous System, and Mobility in Older Adults: Interventions. J Gerontol A Biol Sci Med Sci 2016; 71:1451-1458. [PMID: 27154905 PMCID: PMC5055648 DOI: 10.1093/gerona/glw080] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 04/12/2016] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Research suggests that the central nervous system (CNS) and mobility are closely linked. CNS-mediated mobility impairment may represent a potentially new and prevalent syndrome within the older adult populations. Interventions targeting this group may have the potential to improve mobility and cognition and prevent disability. METHODS In 2012, the Gerontological Society of America (GSA) and the National Institute on Aging (NIA) sponsored a 3-year conference workshop series, "Aging, the CNS, and Mobility." The goal of this third and final conference was to (i) report on the state of the science of interventions targeting CNS-mediated mobility impairment among community-dwelling older adults and (ii) partnering with the NIA, explore the future of research and intervention design focused on a potentially novel aging syndrome. RESULTS Evidence was presented in five main intervention areas: (i) pharmacology and diet; (ii) exercise; (iii) electrical stimulation; (iv) sensory stimulation/deprivation; and (v) a combined category of multimodal interventions. Workshop participants identified important gaps in knowledge and key recommendations for future interventions related to recruitment and sample selection, intervention design, and methods to measure effectiveness. CONCLUSIONS In order to develop effective preventive interventions for this prevalent syndrome, multidisciplinary teams are essential particularly because of the complex nature of the syndrome. Additionally, integrating innovative methods into the design of interventions may help researchers better measure complex mechanisms, and finally, the value of understanding the link between the CNS and mobility should be conveyed to researchers across disciplines in order to incorporate cognitive and mobility measurements into study protocols.
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Affiliation(s)
- Vijay R Varma
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
- Center on Aging and Health, Johns Hopkins University, Baltimore, Maryland
- Clinical and Translational Neuroscience Unit, Laboratory of Behavioral Neuroscience, National Institute on Aging, National Institutes of Health, Baltimore, MD
| | - Jeffrey M Hausdorff
- Center for the Study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, and Department of Physical Therapy, Sackler Faculty of Medicine and Sagol School of Neuroscience, Tel Aviv University, Israel
| | | | - Caterina Rosano
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pennsylvania
| | - Richard Camicioli
- Department of Medicine, Division of Neurology, University of Alberta, Edmonton, Canada
| | - Neil B Alexander
- Department of Internal Medicine, University of Michigan, Ann Arbor
| | - Wen G Chen
- Division of Neuroscience, National Institute on Aging, Bethesda, Maryland
| | - Lewis A Lipsitz
- Institute for Aging Research, Research, Hebrew Senior Life, Harvard Medical School, Boston, Massachusetts
| | - Michelle C Carlson
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
- Center on Aging and Health, Johns Hopkins University, Baltimore, Maryland
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22
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Mudar RA, Husain FT. Neural Alterations in Acquired Age-Related Hearing Loss. Front Psychol 2016; 7:828. [PMID: 27313556 PMCID: PMC4889579 DOI: 10.3389/fpsyg.2016.00828] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 05/17/2016] [Indexed: 11/13/2022] Open
Abstract
Hearing loss is one of the most prevalent chronic health conditions in older adults. Growing evidence suggests that hearing loss is associated with reduced cognitive functioning and incident dementia. In this mini-review, we briefly examine literature on anatomical and functional alterations in the brains of adults with acquired age-associated hearing loss, which may underlie the cognitive consequences observed in this population, focusing on studies that have used structural and functional magnetic resonance imaging, diffusion tensor imaging, and event-related electroencephalography. We discuss structural and functional alterations observed in the temporal and frontal cortices and the limbic system. These neural alterations are discussed in the context of common cause, information-degradation, and sensory-deprivation hypotheses, and we suggest possible rehabilitation strategies. Although, we are beginning to learn more about changes in neural architecture and functionality related to age-associated hearing loss, much work remains to be done. Understanding the neural alterations will provide objective markers for early identification of neural consequences of age-associated hearing loss and for evaluating benefits of intervention approaches.
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Affiliation(s)
- Raksha A Mudar
- Department of Speech and Hearing Science, University of Illinois at Urbana-Champaign, ChampaignIL, USA; Neuroscience Program, University of Illinois at Urbana-Champaign, ChampaignIL, USA
| | - Fatima T Husain
- Department of Speech and Hearing Science, University of Illinois at Urbana-Champaign, ChampaignIL, USA; Neuroscience Program, University of Illinois at Urbana-Champaign, ChampaignIL, USA; Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, ChampaignIL, USA
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