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Kutten KS, Trieu J, Dawson J, Hou L, Sollmann L, Kral A, Hubka P, Ratnanather JT. Multidimensional Alternating Kernel Method for cortical layer segmentation in 3D reconstructed histology. MethodsX 2024; 12:102674. [PMID: 38660047 PMCID: PMC11041843 DOI: 10.1016/j.mex.2024.102674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 03/22/2024] [Indexed: 04/26/2024] Open
Abstract
The neocortex of the brain can be divided into six layers each with a distinct cell composition and connectivity pattern. Recently, sensory deprivation, including congenital deafness, has been shown to alter cortical structure (e.g. the cortical thickness) of the feline auditory cortex with variable and inconsistent results. Thus, understanding these complex changes will require further study of the constituent cortical layers in three-dimensional space. Further progress crucially depends on the use of objective computational techniques that can reliably characterize spatial properties of the complex cortical structure. Here a method for cortical laminar segmentation is derived and applied to the three-dimensional cortical areas reconstructed from a series of histological sections from four feline brains. In this approach, the Alternating Kernel Method was extended to fit a multi-variate Gaussian mixture model to a feature space consisting of both staining intensity and a biologically plausible equivolumetric depth map. This research method•Extends the Alternating Kernel Method to multi-dimensional feature spaces.•Uses it to segment the cortical layers in reconstructed histology volume. Segmentation features include staining intensity and a biologically plausible equivolumetric depth map.•Validates results in auditory cortical areas of feline brains, two with normal hearing and two with congenital deafness.
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Affiliation(s)
| | - Jenny Trieu
- Johns Hopkins University, Baltimore, MD, USA
| | | | - Lisa Hou
- Johns Hopkins University, Baltimore, MD, USA
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Yuan D, Tournis E, Ryan ME, Lai CM, Geng X, Young NM, Wong PCM. Early-stage use of hearing aids preserves auditory cortical structure in children with sensorineural hearing loss. Cereb Cortex 2024; 34:bhae145. [PMID: 38610087 PMCID: PMC11021813 DOI: 10.1093/cercor/bhae145] [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: 12/19/2023] [Revised: 03/18/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024] Open
Abstract
Hearing is critical to spoken language, cognitive, and social development. Little is known about how early auditory experiences impact the brain structure of children with bilateral sensorineural hearing loss. This study examined the influence of hearing aid use and residual hearing on the auditory cortex of children with severe to profound congenital sensorineural hearing loss. We evaluated cortical preservation in 103 young pediatric cochlear implant candidates (55 females and 48 males) by comparing their multivoxel pattern similarity of auditory cortical structure with that of 78 age-matched children with typical hearing. The results demonstrated that early-stage hearing aid use preserved the auditory cortex of children with bilateral congenital sensorineural hearing loss. Children with less residual hearing experienced a more pronounced advantage from hearing aid use. However, this beneficial effect gradually diminished after 17 months of hearing aid use. These findings support timely fitting of hearing aids in conjunction with early implantation to take advantage of neural preservation to maximize auditory and spoken language development.
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Affiliation(s)
- Di Yuan
- Brain and Mind Institute, The Chinese University of Hong Kong, 4F, Hui Yeung Shing Building, Shatin, N.T., Hong Kong SAR, China
- Department of Psychology, The Chinese University of Hong Kong, 3F, Sino Building Shatin, N.T., Hong Kong SAR, China
| | - Elizabeth Tournis
- Department of Audiology, Ann & Robert H. Lurie Children’s Hospital of Chicago, 225 E. Chicago Ave, Chicago, IL 60611, United States
| | - Maura E Ryan
- Department of Medical Imaging, Ann & Robert H. Lurie Children’s Hospital of Chicago, 225 E. Chicago Ave, Chicago, IL 60611, United States
- Department of Medical Imaging, Northwestern University Feinberg School of Medicine, 676 N. St. Clair St,Chicago, IL 60611, United States
| | - Ching Man Lai
- Brain and Mind Institute, The Chinese University of Hong Kong, 4F, Hui Yeung Shing Building, Shatin, N.T., Hong Kong SAR, China
| | - Xiujuan Geng
- Brain and Mind Institute, The Chinese University of Hong Kong, 4F, Hui Yeung Shing Building, Shatin, N.T., Hong Kong SAR, China
| | - Nancy M Young
- Division of Otolaryngology, Ann and Robert H Lurie Children’s Hospital of Chicago, 225 E. Chicago Ave, Chicago, IL 60611, United States
- Department of Otolaryngology–Head and Neck Surgery, Feinberg School of Medicine, Northwestern University, 676 N St. Clair St, Chicago, IL 60611, United States
- Knowles Hearing Center, Department of Communication Sciences and Disorders, Northwestern University, 2240 Campus Drive, Evanston, IL 60208-3540, United States
| | - Patrick C M Wong
- Brain and Mind Institute, The Chinese University of Hong Kong, 4F, Hui Yeung Shing Building, Shatin, N.T., Hong Kong SAR, China
- Department of Linguistics and Modern Languages, The Chinese University of Hong Kong, G/F, Leung Kau Kui Building, Shatin, N.T., Hong Kong SAR, China
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Chen Y, Wang S, Yang L, Liu Y, Fu X, Wang Y, Zhang X, Wang S. Features of the speech processing network in post- and prelingually deaf cochlear implant users. Cereb Cortex 2024; 34:bhad417. [PMID: 38163443 DOI: 10.1093/cercor/bhad417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/13/2023] [Accepted: 10/14/2023] [Indexed: 01/03/2024] Open
Abstract
The onset of hearing loss can lead to altered brain structure and functions. However, hearing restoration may also result in distinct cortical reorganization. A differential pattern of functional remodeling was observed between post- and prelingual cochlear implant users, but it remains unclear how these speech processing networks are reorganized after cochlear implantation. To explore the impact of language acquisition and hearing restoration on speech perception in cochlear implant users, we conducted assessments of brain activation, functional connectivity, and graph theory-based analysis using functional near-infrared spectroscopy. We examined the effects of speech-in-noise stimuli on three groups: postlingual cochlear implant users (n = 12), prelingual cochlear implant users (n = 10), and age-matched individuals with hearing controls (HC) (n = 22). The activation of auditory-related areas in cochlear implant users showed a lower response compared with the HC group. Wernicke's area and Broca's area demonstrated differences network attributes in speech processing networks in post- and prelingual cochlear implant users. In addition, cochlear implant users maintain a high efficiency of the speech processing network to process speech information. Taken together, our results characterize the speech processing networks, in varying noise environments, in post- and prelingual cochlear implant users and provide new insights for theories of how implantation modes impact remodeling of the speech processing functional networks.
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Affiliation(s)
- Younuo Chen
- Beijing Institute of Otolaryngology, Otolaryngology-Head and Neck Surgery, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Songjian Wang
- Beijing Institute of Otolaryngology, Otolaryngology-Head and Neck Surgery, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Liu Yang
- School of Biomedical Engineering, Capital Medical University, No. 10, Xitoutiao, YouAnMen, Fengtai District, Beijing 100069, China
| | - Yi Liu
- Beijing Institute of Otolaryngology, Otolaryngology-Head and Neck Surgery, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Xinxing Fu
- Beijing Institute of Otolaryngology, Otolaryngology-Head and Neck Surgery, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Yuan Wang
- Beijing Institute of Otolaryngology, Otolaryngology-Head and Neck Surgery, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
| | - Xu Zhang
- School of Biomedical Engineering, Capital Medical University, No. 10, Xitoutiao, YouAnMen, Fengtai District, Beijing 100069, China
| | - Shuo Wang
- Beijing Institute of Otolaryngology, Otolaryngology-Head and Neck Surgery, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
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Ullah MN, Cevallos A, Shen S, Carver C, Dunham R, Marsiglia D, Yeagle J, Della Santina CC, Bowditch S, Sun DQ. Cochlear implantation in unilateral hearing loss: impact of short- to medium-term auditory deprivation. Front Neurosci 2023; 17:1247269. [PMID: 37877013 PMCID: PMC10591100 DOI: 10.3389/fnins.2023.1247269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 09/21/2023] [Indexed: 10/26/2023] Open
Abstract
Introduction Single sided deafness (SSD) results in profound cortical reorganization that presents clinically with a significant impact on sound localization and speech comprehension. Cochlear implantation (CI) has been approved for two manufacturers' devices in the United States to restore bilateral function in SSD patients with up to 10 years of auditory deprivation. However, there is great variability in auditory performance and it remains unclear how auditory deprivation affects CI benefits within this 10-year window. This prospective study explores how measured auditory performance relates to real-world experience and device use in a cohort of SSD-CI subjects who have between 0 and 10 years of auditory deprivation. Methods Subjects were assessed before implantation and 3-, 6-, and 12-months post-CI activation via Consonant-Nucleus-Consonant (CNC) word recognition and Arizona Biomedical Institute (AzBio) sentence recognition in varying spatial speech and noise presentations that simulate head shadow, squelch, and summation effects (S0N0, SSSDNNH, SNHNSSD; 0 = front, SSD = impacted ear, NH = normal hearing ear). Patient-centered assessments were performed using Tinnitus Handicap Inventory (THI), Spatial Hearing Questionnaire (SHQ), and Health Utility Index Mark 3 (HUI3). Device use data was acquired from manufacturer software. Further subgroup analysis was performed on data stratified by <5 years and 5-10 years duration of deafness. Results In the SSD ear, median (IQR) CNC word scores pre-implant and at 3-, 6-, and 12-months post-implant were 0% (0-0%), 24% (8-44%), 28% (4-44%), and 18% (7-33%), respectively. At 6 months post-activation, AzBio scores in S0N0 and SSSDNNH configurations (n = 25) demonstrated statistically significant increases in performance by 5% (p = 0.03) and 20% (p = 0.005), respectively. The median HUI3 score was 0.56 pre-implant, lower than scores for common conditions such as anxiety (0.68) and diabetes (0.77), and comparable to stroke (0.58). Scores improved to 0.83 (0.71-0.91) by 3 months post-activation. These audiologic and subjective benefits were observed even in patients with longer durations of deafness. Discussion By merging CI-associated changes in objective and patient-centered measures of auditory function, our findings implicate central mechanisms of auditory compensation and adaptation critical in auditory performance after SSD-CI and quantify the extent to which they affect the real-world experience reported by individuals.
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Affiliation(s)
- Mohammed N. Ullah
- Johns Hopkins Medicine, Johns Hopkins University, Baltimore, MD, United States
| | - Ashley Cevallos
- Department of Otolaryngology – Head and Neck Surgery and Cochlear Implant Center, The Johns Hopkins Hospital, Johns Hopkins Medicine, Baltimore, MD, United States
| | - Sarek Shen
- Department of Otolaryngology – Head and Neck Surgery and Cochlear Implant Center, The Johns Hopkins Hospital, Johns Hopkins Medicine, Baltimore, MD, United States
| | - Courtney Carver
- Department of Otolaryngology – Head and Neck Surgery and Cochlear Implant Center, The Johns Hopkins Hospital, Johns Hopkins Medicine, Baltimore, MD, United States
| | - Rachel Dunham
- Department of Otolaryngology – Head and Neck Surgery and Cochlear Implant Center, The Johns Hopkins Hospital, Johns Hopkins Medicine, Baltimore, MD, United States
| | - Dawn Marsiglia
- Department of Otolaryngology – Head and Neck Surgery and Cochlear Implant Center, The Johns Hopkins Hospital, Johns Hopkins Medicine, Baltimore, MD, United States
| | - Jennifer Yeagle
- Department of Otolaryngology – Head and Neck Surgery and Cochlear Implant Center, The Johns Hopkins Hospital, Johns Hopkins Medicine, Baltimore, MD, United States
| | - Charles C. Della Santina
- Department of Otolaryngology – Head and Neck Surgery and Cochlear Implant Center, The Johns Hopkins Hospital, Johns Hopkins Medicine, Baltimore, MD, United States
| | - Steve Bowditch
- Department of Otolaryngology – Head and Neck Surgery and Cochlear Implant Center, The Johns Hopkins Hospital, Johns Hopkins Medicine, Baltimore, MD, United States
| | - Daniel Q. Sun
- Department of Otolaryngology – Head and Neck Surgery and Cochlear Implant Center, The Johns Hopkins Hospital, Johns Hopkins Medicine, Baltimore, MD, United States
- Department of Otolaryngology – Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, United States
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He J, Cabrera-Mendoza B, Angelis FD, Pathak GA, Koller D, Curhan SG, Curhan GC, Mecca AP, van Dyck CH, Polimanti R. Sex differences in the pleiotropy of hearing difficulty with imaging-derived phenotypes: a brain-wide investigation. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.08.25.23294639. [PMID: 37693474 PMCID: PMC10491277 DOI: 10.1101/2023.08.25.23294639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Background Hearing difficulty (HD) is one of the major health burdens in older adults. While aging-related changes in the peripheral auditory system play an important role, genetic variation associated with brain structure and function could also be involved in HD predisposition. Methods We analyzed a large-scale HD genome-wide association study (GWAS; N total = 501,825, 56% females) and GWAS data related to 3,935 brain imaging-derived phenotypes (IDPs) assessed in up to 33,224 individuals (52% females) using multiple magnetic resonance imaging (MRI) modalities. To investigate HD pleiotropy with brain structure and function, we conducted genetic correlation, latent causal variable (LCV), Mendelian randomization (MR), and multivariable generalized linear regression analyses. Additionally, we performed local genetic correlation and multi-trait colocalization analyses to identify genomic regions and loci implicated in the pleiotropic mechanisms shared between HD and brain IDPs. Results We observed a widespread genetic correlation of HD with 120 IDPs in females, 89 IDPs in males, and 171 IDPs in the sex-combined analysis. The LCV analyses showed that some of these genetic correlations could be due to cause-effect relationships. For seven correlations, the causal effects were also confirmed by the MR approach: vessel volume→HD in the sex-combined analysis; hippocampus volume→HD, cerebellum grey matter volume→HD, primary visual cortex volume→HD, and HD→rfMRI-ICA100 node 46 in females; global mean thickness→HD and HD→mean orientation dispersion index in superior corona radiata in males. The local genetic correlation analyses identified 13 pleiotropic regions between HD and these seven IDPs. We also observed a colocalization signal for the rs13026575 variant between HD, primary visual cortex volume, and SPTBN1 transcriptomic regulation in females. Conclusion Brain structure and function may have a role in the sex differences in HD predisposition via possible cause-effect relationships and shared regulatory mechanisms.
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Yuan D, Ng IHY, Feng G, Chang WT, Tong MCF, Young NM, Wong PCM. The Extent of Hearing Input Affects the Plasticity of the Auditory Cortex in Children With Hearing Loss: A Preliminary Study. Am J Audiol 2023; 32:379-390. [PMID: 37080240 DOI: 10.1044/2023_aja-22-00172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023] Open
Abstract
PURPOSE This study investigated to what extent residual hearing and rehabilitation options (e.g., hearing aids [HAs]) affect the auditory cortex in children with hearing loss. METHOD Twenty-one children with bilateral congenital sensorineural hearing loss who were candidates for cochlear implantation were recruited. Voxel-based morphometry analysis was conducted to assess the gray matter (GM) volume in the auditory cortex. Children's residual hearing was measured by pure-tone audiometry at different frequencies. Multiple linear regression models were conducted to examine the effects of residual hearing and the use of HAs on GM volume in the auditory cortex with the control of age and gender. RESULTS Children with more residual hearing at high frequencies had larger GM volume ratio (corrected by total intracranial volume) in the left Heschl's gyrus (r = -.545, p = .013). An interaction effect between residual hearing and the use of HAs suggested that the effect of residual hearing on GM ratio was moderated by the use of HAs (β = -.791, p = .020). Compared with children with less residual hearing, children who had more residual hearing benefited more from longer use of HAs in terms of a larger GM ratio. CONCLUSIONS Our preliminary findings highlight the impact of residual hearing on the neuroanatomy of the auditory cortex in children with hearing loss. Moreover, our results call for more auditory input via HAs for children with more residual hearing to preserve the auditory cortex before cochlear implantation. For children with less residual hearing who might receive limited benefit from HAs, an early cochlear implant would be necessary.
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Affiliation(s)
- Di Yuan
- Department of Psychology, The Chinese University of Hong Kong, Hong Kong SAR
- Brain and Mind Institute, The Chinese University of Hong Kong, Hong Kong SAR
| | - Iris H-Y Ng
- Department of Otorhinolaryngology, Head and Neck Surgery, The Chinese University of Hong Kong, Hong Kong SAR
| | - Gangyi Feng
- Brain and Mind Institute, The Chinese University of Hong Kong, Hong Kong SAR
- Department of Linguistics and Modern Languages, The Chinese University of Hong Kong, Hong Kong SAR
| | - Wai Tsz Chang
- Department of Otorhinolaryngology, Head and Neck Surgery, The Chinese University of Hong Kong, Hong Kong SAR
| | - Michael C F Tong
- Department of Otorhinolaryngology, Head and Neck Surgery, The Chinese University of Hong Kong, Hong Kong SAR
| | - Nancy M Young
- Department of Otolaryngology-Head & Neck Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL
- Division of Otolaryngology-Head & Neck Surgery, Ann & Robert H. Lurie Children's Hospital of Chicago, IL
| | - Patrick C M Wong
- Brain and Mind Institute, The Chinese University of Hong Kong, Hong Kong SAR
- Department of Linguistics and Modern Languages, The Chinese University of Hong Kong, Hong Kong SAR
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Lau R, Malhotra AK, McAndrews MP, Kongkham P. Subcortical language localization using sign language and awake craniotomy for dominant posterior temporal glioma resection in a hearing-impaired patient. Acta Neurochir (Wien) 2023; 165:1665-1669. [PMID: 37079109 DOI: 10.1007/s00701-023-05586-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 04/04/2023] [Indexed: 04/21/2023]
Abstract
Intraoperative direct cortical stimulation (DCS) is the gold standard technique to maximize the extent of resection of tumors located in eloquent areas. To date, there are three cases reported of awake mapping for language centers in deaf patients who could communicate only with sign language. We present the case of DCS in a deaf patient who could communicate vocally, native to American Sign Language and English, that underwent intraoperative awake mapping. DCS showed similar disruption of expressive phonology to both pictorial and gestural stimuli, confirming that sign language follows the same pattern as oral language.
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Affiliation(s)
- Ruth Lau
- Division of Neurosurgery, Krembil Brain Institute, Toronto Western Hospital, University Health Network, Toronto, Canada
| | - Armaan K Malhotra
- Division of Neurosurgery, Krembil Brain Institute, Toronto Western Hospital, University Health Network, Toronto, Canada
| | - Mary Pat McAndrews
- Department of Psychology, Krembil Research Institute, University Health Network, Toronto, Canada
| | - Paul Kongkham
- Division of Neurosurgery, Krembil Brain Institute, Toronto Western Hospital, University Health Network, Toronto, Canada.
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Huber M, Lee HJ, Langereis M, Vermeulen A. Editorial: Quality of life in young cochlear implant recipients: Are there controlling factors and regional differences? Front Psychol 2022; 13:1109242. [PMID: 36591102 PMCID: PMC9798845 DOI: 10.3389/fpsyg.2022.1109242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Affiliation(s)
- Maria Huber
- Department of Otorhinolaryngology, Paracelsus Medical University, Salzburg, Austria,*Correspondence: Maria Huber ✉
| | - Hyo-Jeong Lee
- Department of Otolaryngology, Hallym University Medical Center, Chuncheon, South Korea
| | - Margreet Langereis
- Research Department, Pento Speech and Hearing Centres, Nijmegen, Netherlands
| | - Anneke Vermeulen
- Research Department, Pento Speech and Hearing Centres, Nijmegen, Netherlands
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