The impact of auditory access on the development of speech perception

听觉访问对言语感知发展的影响

• 批准号: 10677429
• 负责人: Kristin Michelle Uhler
• 金额: $ 38.59万
• 依托单位: UNIVERSITY OF COLORADO DENVER
• 依托单位国家: 美国
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-03-01 至 2028-02-29
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10677429
• 关键词: Address; Affect; Age; Age Months; Auditory; Behavioral; Brain; Child; Clinical; Cochlear implant procedure; Communication; Cueing for speech; Cues; Data; Detection; Development; Developmental Process; Diagnosis; Discrimination; Early Intervention; Electroencephalography; Exposure to; Felis catus; Foundations; Future; Goals; Hearing; Hearing Aids; Infant; Intervention; Language; Language Development; Life; Maps; Measures; Mission; Modeling; National Institute on Deafness and Other Communication Disorders; Noise; Outcome; Pathway interactions; Physiological; Predisposition; Review Literature; Risk; Scalp structure; Seminal; Sensory; Shapes; Speech; Speech Development; Speech Discrimination; Speech Perception; Speech Sound; Work; childhood hearing loss; cohort; experience; hard of hearing; hearing impairment; improved; language outcome; non-Native; normal hearing; peer; permanent hearing loss; personalized intervention; response; skill acquisition; skills; societal costs; sound; tool

PROJECT SUMMARY Infants who are hard-of-hearing (IHH) are at significantly increased risk for poor auditory development and speech perception (e.g., perceiving cat versus hat), despite early hearing detection and intervention. For infants with normal hearing (INH), the first year of life is a seminal period for refining speech perception abilities shaped by exposure to language. During this early developmental period, perceptual skills become more narrowly tuned to spectral and temporal features, or cues, that favor discrimination of behaviorally relevant information. Thus, early perceptual skill development is driven by the dynamic interplay between language experiences and the concurrent maturation of auditory sensory pathways. Because refinement of speech discrimination abilities depends on an infant's exposure to speech sounds, IHH are susceptible to atypical development during this period. What remains poorly understood is the impact of inconsistent auditory cue access and poor speech perception among IHH. There is a critical need to map auditory development among IHH and to understand the long-term impacts of auditory cue processing on speech perception abilities. Filling this need will lay the foundation for developing clinical tools that will aid in personalization of intervention strategies. Our overall objectives in this application are to 1) map the emergence of speech perception among IHH compared to a cohort of age-matched INH; 2) describe the effects of auditory speech cue access on speech discrimination in noise, and 3) to assess the relationship between attunement of speech perception and functional auditory skills. By comparing these groups at 3, 6, and 12 months of age, we can describe the extent to which maturation and experience contribute to the emergence and attunement of speech perception abilities. To document speech perception development, we will use scalp-recorded electroencephalography (EEG) measured in response to native and non-native speech sounds. Our hypotheses are: 1) INH will demonstrate attunement for vowel and consonant speech sounds, but IHH will not; 2) speech perception abilities measured at 12 months of age will be positively correlated with discrimination abilities; and 3) auditory development scores will be higher for infants who demonstrate attunement to English consonant sounds. Results will inform our understanding of speech perception and auditory skill development among IHH. Our long-term goal is to improve speech and language outcomes in children with hearing loss. This project is relevant to NIDCD's mission of understanding the mechanisms of hearing loss which impact the emergence of speech perception and functional auditory skill development.

项目摘要 听力困难（IHH）的婴儿听力发育不良的风险显著增加， 语音感知（例如，感知猫与帽子），尽管早期听力检测和干预。为 对于听力正常的婴儿，出生后的第一年是改善言语感知能力的重要时期 通过接触语言来塑造。在这个早期发展阶段，知觉技能变得更加 狭隘地调整到光谱和时间特征，或线索，有利于行为相关的歧视， 信息.因此，早期知觉技能的发展是由语言之间的动态相互作用驱动的。 经验和听觉通路的同步成熟。因为语言的精炼 辨别能力取决于婴儿对语音的接触，IHH易受非典型性 在此期间的发展。人们对不一致的听觉线索的影响仍然知之甚少 IHH之间的访问和言语感知差。有一个迫切需要映射听觉发展之间 了解听觉线索加工对言语感知能力的长期影响。填充 这一需求将为开发有助于个性化干预的临床工具奠定基础 战略布局 我们在这个应用程序中的总体目标是：1）映射IHH之间的语音感知的出现 与年龄匹配的INH队列相比; 2）描述听觉言语线索访问对言语的影响 噪声中的辨别力，以及3）评估言语感知协调与 功能性听觉技能通过比较3个月、6个月和12个月大的这些组，我们可以描述 成熟和经验有助于言语感知的出现和协调 能力.为了记录言语知觉的发展，我们将使用头皮记录的脑电图， (EEG)对母语和非母语语音的反应。我们的假设是：1）INH将 表现出对元音和辅音语音的协调，但IHH不会; 2）语音感知 在12个月大时测量的能力将与辨别能力呈正相关;以及3）听觉 对英语辅音表现出协调的婴儿的发展分数会更高。 结果将告知我们的理解言语知觉和听觉技能的发展之间的IHH。我们 长期目标是改善听力损失儿童的言语和语言结果。这个项目是 与NIDCD的使命有关，即了解听力损失的机制， 言语知觉和功能性听觉技能发展。