AUDITORY DEVELOPMENT IN EARLY-AMPLIFIED CHILDREN

描述（来自申请人的摘要）：目前几乎没有信息 描述早期听觉干预的过程（ 放大）和由此产生的基于幼儿的结果。的 这个项目的长期目标是研究言语感知，言语 听力损失儿童的语言表达和口语能力 接受早期、准确的听力评估和适当的验配 放大该项目还将提供关于 婴儿听力损失的准确评估以及 听力和耳朵结构，以及这些如何可能与放大 装修过程一个大的婴儿群体被确定为听力损失， 新生儿听力筛查计划将有听力阈值预测， 频率特异性听性脑干反应（ABR）。这些门槛将是 与适合婴儿的处方技术配合使用，以进行拟合和验证 的放大。婴儿将参加亲子教育， 随访了四年。未接受听力损失筛查的幼儿 新生儿期被确定为听力损失的人，最多2岁 也将适合放大和遵循的主题。言语感知 言语产生和口语将随着年龄进行评估- 定期采取适当措施。重要信息可能 影响放大和听觉结果之间的关系，例如 教育干预的类型和时机，认知状态，父母 参与、社会经济地位和其他医疗条件将被 记录并用于数据分析。本研究的主要目的是1） 确定优化扩增时的年龄之间的关系 听力损失与言语感知，言语产生， 听力损失儿童的语言; 2）确定时间 这种发展的过程。第二个目标是建立以下方面的准确性： 应用ABIR预测新生儿听力阈值 6个月龄后获得的行为测听阈值， 确定耳道容积的发育相关变化程度， 助听器的选配

DESCRIPTION (from applicant's abstract): Little information is presently available describing the process of early auditory intervention (fitting of amplification) and resultant auditory-based outcomes in young children. The long-term objective of this project is to investigate speech perception, speech production, and spoken language skills in children with hearing loss who have received early, accurate audiologic assessment and appropriate fitting of amplification. This project will also provide information on the process of accurate hearing loss estimation in infants as well as developmental changes in audition and ear structures and how these may relate to the amplification fitting process. A large group of infants identified with hearing loss in a neonatal hearing screening program will have hearing thresholds predicted by frequency-specific auditory brainstem response (ABR). These thresholds will be used with infant-appropriate prescriptive techniques for fitting and validation of amplification. Infants will be enrolled in parent-infant education and followed for up to four years. Young children not screened for hearing loss in the newborn period who are identified with hearing loss up to 2 years of age will also be fit with amplification and followed as subjects. Speech perception and speech production as well as spoken language will be assessed with age- appropriate measures at regular intervals. Important information that may influence the relationship between amplification and auditory outcomes, such as type and timing of educational intervention, cognitive status, parental involvement, socio-economic status and other medical conditions will be documented and used in data analysis. Primary aims of this study are to 1) determine the relationship(s) between age at time of optimized amplification fitting and degree of hearing loss with speech perception, speech production, and spoken language in children with hearing loss; and, 2) determine the time course of this development. Secondary aims are to establish the accuracy of audiometric threshold prediction in newborns using ABIR against standard behavioral audiometric thresholds obtained after 6 months of age, and to determine the extent of developmentally related changes in ear canal volume and resonance on hearing aid prescriptive targets.