Audiological Rehabilitation of Children With Unilateral Hearing Loss (SHINE)
The goal of this study is to examine the effects of hearing aids and early intervention on hearing, language, and neural development in children with hearing loss in one ear, known as unilateral hearing loss. Our main research questions are:
- Do children with unilateral hearing loss with earlier access to hearing aids and early intervention have better speech understanding in noise than children with unilateral hearing loss with later or no access to intervention?
- Do children with unilateral hearing loss with earlier access to intervention have more typical responses in the brain than children with late or no access to intervention?
- Do children with unilateral hearing loss with earlier access to intervention have better speech and language skills than children with late or no access to intervention?
Researchers will collect hearing, language, and neural data and information about each child's access to intervention to examine the longitudinal impact of auditory experience on these outcomes.
Participants and their caregivers will:
- Answer questions about the child's health, developmental, and hearing histories.
- Receive hearing tests and speech recognition tests.
- Complete tests of speech and language abilities.
- A subset of eligible participants will undergo magnetic resonance imaging (MRI) and magneotencephalography (MEG).
研究概览
详细说明
More than 5 million children in the United States have hearing loss in one ear, known as unilateral hearing loss (UHL). The primary consequence of UHL is reduced spatial hearing, which is crucial for communication and functioning in everyday listening conditions. Children with UHL (CUHL) are at risk for delays in language and academic outcomes compared to peers with normal hearing in both ears. However, there are large individual differences in developmental outcomes that cannot be explained by the degree of hearing loss in the affected ear. CUHL also have a wide range of spatial hearing abilities, and there is currently limited evidence to link individual differences in spatial hearing to the wide range of developmental outcomes that are observed in CUHL. The lack of predictable patterns of risk for CUHL leads to inconsistent recommendations for audiological intervention or intervention that commences only after a child demonstrates fails to progress in language or academic outcomes. Audiologists have the option to improve spatial hearing in CUHL through fitting a hearing aid on the affected ear, but hearing aids are often not provided or are only provided at later ages, even when UHL is identified in the first few months of life. The lack of consistent practices around provision of hearing aids for CUHL is due to limited evidence that hearing aids can support binaural processing in CUHL. This project seeks to provide mechanistic evidence to support earlier and more timely intervention for CUHL. We will use a metric referred to as auditory dosage to quantify auditory input to the affected ear based on aided and unaided speech audibility and consistency of hearing aid use. We anticipate auditory dosage is the primary predictor of individual differences in outcomes for CUHL. The core hypothesis of the proposal is that CUHL who have higher auditory dosage in their affected ear will have better spatial hearing, which in turn leads to better language and academic outcomes than peers with lower auditory dosage in their affected ear. Experiments will combine behavioral and neuroimaging measures of spatial hearing with and without amplification to assess how auditory dosage in the affected ear influences spatial hearing, language, and academic outcomes in CUHL. We will analyze the effects of hearing aid distortion and auditory dosage on behavioral measures of spatial hearing with and without amplification. Structural and functional neuroimaging, including magnetoencephalography and magnetic resonance imaging, will be used to assess the impact of auditory dosage on spatial hearing in CUHL. We will also use an accelerated longitudinal design to assess the mediating effects of spatial hearing on the association between hearing aid distortion and auditory dosage and language and academic outcomes in CUHL. These experiments will provide mechanistic evidence to help guide decisions about audiological intervention for CUHL and lead to individualized interventions to improve spatial hearing, language, and academic outcomes for CUHL.
研究类型
注册 (估计的)
联系人和位置
学习联系方式
- 姓名：Ryan McCreery, PhD
- 电话号码：531-355-6668
- 邮箱：Ryan.McCreery@boystown.org
研究联系人备份
- 姓名：Amanda Knihal
- 电话号码：531-355-6533
- 邮箱：Amanda.Knihal@boystown.org
学习地点
-
-
Iowa
-
Iowa City、Iowa、美国、52242
- 尚未招聘
- University of Iowa
-
接触：
- Wendy Fick
- 电话号码：319-335-8749
- 邮箱：wendy-fick@uiowa.edu
-
首席研究员：
- Elizabeth Walker, PhD
-
-
Nebraska
-
Omaha、Nebraska、美国、68131
- 招聘中
- Boys Town National Research Hospital
-
接触：
- Amanda Knihal
- 电话号码：531-355-6533
- 邮箱：Amanda.Knihal@boystown.org
-
首席研究员：
- Ryan McCreery, PhD
-
副研究员：
- Nicole Corbin, PhD
-
副研究员：
- Dawna Lewis, PhD
-
-
North Carolina
-
Chapell Hill、North Carolina、美国、27599
- 尚未招聘
- University of North Carolina, Chapell Hill
-
接触：
- Caitlin Sapp, PhD
- 电话号码：984-974-4479
- 邮箱：Caitlin.Sapp@unchealth.unc.edu
-
首席研究员：
- Emily Buss, PhD
-
副研究员：
- Caitlin Sapp, PhD
-
-
参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
取样方法
研究人群
Children with normal hearing and children with unilateral hearing loss will be recruited from hospitals, audiology clinics, and education agencies across the United States.
描述
Inclusion Criteria:
- Children with normal hearing will have hearing thresholds from 0.25 - 8 kHz ≤15 dB HL in both ears with no history of neurodevelopmental, communication, or sensory disorders.
- Children with unilateral hearing loss will have hearing thresholds that meet the criterion for CNH in the better ear and three-frequency (.5, 1, & 2 kHz) pure-tone average ≥ 20 - <70 dB HL or two or more hearing thresholds ≥ 20 - < 70 dB HL from 2-8 kHz in the poorer ear. Hearing loss can be conductive, mixed, or sensorineural.
Exclusion Criteria:
- Children with unilateral hearing loss who have a cochlear implant, rerouting device, or an implanted bone conduction device will be excluded due to neuroimaging restrictions with implantable devices.
- For neuroimaging experiments only, there are additional exclusion criteria. Participants will be excluded from MEG and MRI experiments if they have 1) Current use of the following medications: psychotropic medications or other medications with significant CNS effects (e.g., antidepressants, antipsychotics, anticonvulsants, alpha-agonists, adrenergic blockers, lithium, and sedating antihistamines), or other excluded medication, 2) current major psychiatric diagnosis, 3) current substance abuse or substance dependence at any time, 4) diagnosis of a known neurological disorder or any major medical illness or injury impacting neurological/psychiatric function (e.g., diabetes, epilepsy, cerebral palsy, HIV, traumatic brain injury, significant environmental/toxic injury, neurodegenerative disorder, past meningitis/encephalitis) 5) general medical conditions: any major medical conditions that would interfere with involvement in the study or may affect CNS function as judged by the investigative team or 6) presence of any ferrous metal implant, including orthodonture or pacemaker, which may interfere with the MEG data acquisition and/or be an MRI safety concern.
学习计划
研究是如何设计的？
设计细节
- 观测模型：COHORT
- 时间观点：PROSPECTIVE
队列和干预
团体/队列 |
干预/治疗 |
|---|---|
|
Unilateral hearing loss
Children with unilateral hearing loss with hearing aids and children with unilateral hearing loss without hearing aids. |
Hearing aids amplify acoustic sound to provide access to acoustic cues for communication and spatial hearing. |
研究衡量的是什么？
主要结果指标
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Spatial release from masking
大体时间：At enrollment
|
Spatial release from masking is the difference in the speech recognition threshold when a target talker and masker are co-located and when the target and masker are spatially separated. |
At enrollment
|
|
Morphosyntax
大体时间：At enrollment, 12 months after enrollment and 24 months after enrollment.
|
Morphosyntax is the combination of morphology (the internal structure of words) and syntax (the rules for arranging words into sentences), which quantifies how word forms and sentence structures work together to encode meaning |
At enrollment, 12 months after enrollment and 24 months after enrollment.
|
次要结果测量
结果测量 |
措施说明 |
大体时间 |
|---|---|---|
|
Localization
大体时间：At enrollment
|
Localization is the ability to identify the direction that a sound originates in the horizontal plane without visual cues. |
At enrollment
|
|
Vocabulary
大体时间：At enrollment, 12 months after enrollment, and 24 months after enrollment.
|
Vocabulary is the ability to understand and use word meaning. |
At enrollment, 12 months after enrollment, and 24 months after enrollment.
|
合作者和调查者
合作者
调查人员
- 首席研究员：Ryan McCreery, PhD、Father Flanagan's Boys' Home
研究记录日期
研究主要日期
学习开始 (实际的)
初级完成 (估计的)
研究完成 (估计的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
与本研究相关的术语
其他相关的 MeSH 术语
其他研究编号
- R01DC023371 (美国 NIH 拨款/合同)
计划个人参与者数据 (IPD)
计划共享个人参与者数据 (IPD)？
IPD 计划说明
All IPD will be shared.
IPD 共享时间框架
The study protocol, statistical analysis plan, and informed consent forms will be made available at the beginning of the study. The analytic code will be made available as soon as data analysis commences. These will be made available via the project registry and will be maintained until 5 years after the study end date.
IPD 共享访问标准
The IPD will be publicly available through a repository.
IPD 共享支持信息类型
- 研究方案
- 树液
- 国际碳纤维联合会
- 分析代码
药物和器械信息、研究文件
研究美国 FDA 监管的药品
研究美国 FDA 监管的设备产品
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