SPEECH PERCEPTION AND AUDITORY ABILITIES IN INFANTS, CHILDREN, AND ADULTS WITH DOWN SYNDROME

患有唐氏综合症的婴儿、儿童和成人的言语感知和听觉能力

• 批准号: 10830062
• 负责人: Lori J. Leibold
• 金额: $ 30.48万
• 依托单位: FATHER FLANAGAN'S BOYS' HOME
• 依托单位国家: 美国
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-06-01 至 2027-05-31
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10830062
• 关键词: Accounting; Adult; Auditory; Award; Child; Cognitive; Communication; Development; Discrimination; Down Syndrome; Environment; Funding; Goals; Hearing; Individual; Individual Differences; Infant; Knowledge; Language; Learning; Linguistics; Outcome; Parents; Perception; Persons; Predisposition; Public Health; Research; Short-Term Memory; Speech; Speech Development; Speech Perception; Testing; Theoretical model; Time; United States; course development; executive function; experience; hearing impairment; language outcome; non-Native; skills; sound; speech recognition; therapy development; young adult

ABSTRACT OF FUNDED PARENT AWARD (1R01DC020229) (NO CHANGE) The goal of this project is to characterize the speech perception and auditory abilities of infants, children, and adults with Down syndrome. Prior research involving individuals who are neurotypical has highlighted the importance of early perceptual development on long-term speech and language outcomes, but little is currently known about the factors that support communication outcomes for individuals with Down syndrome. We do know that the development of functional hearing skills in children who are neurotypical (such as understanding speech when several people are talking at the same time) requires years of experience with sound, extensive language knowledge, and maturation of executive function. These observations suggest that attainment of speech perception and hearing milestones is likely to be delayed or disrupted for children with Down syndrome, due to limitations in intellectual functioning, language knowledge, and cognitive processing. The first aim of this project evaluates phoneme perception in infants, children, and adults with Down syndrome, with a focus on characterizing infants’ discrimination of native and non-native speech contrasts and examining effects of hearing loss on the consonant identification in children and adults. The second aim tests the hypothesis that maturation of selective listening strategies follows a delayed time course of development for individuals with Down syndrome, resulting in greater susceptibility to interference from competing background sounds. The third aim characterizes the ability to recognize speech in the presence of competing background sounds in children and adults with Down syndrome, accounting for individual differences in factors such as linguistic knowledge and working memory. The results generated by this project are expected to inform theoretical models regarding the development of speech perception and hearing abilities in individuals with Down syndrome, and have the potential to provide preliminary guidance for strategies to maximize speech communication outcomes in noisy environments such as classrooms.

资助家长奖摘要 (1R01DC020229) （没有变化） 该项目的目标是表征婴儿、儿童、儿童的言语感知和听觉能力。 以及患有唐氏综合症的成年人。先前涉及神经典型个体的研究强调了 早期知觉发展对长期言语和语言结果的重要性，但目前还很少 了解支持唐氏综合症患者沟通结果的因素。我们确实知道 神经正常儿童的功能性听力技能的发展（例如理解言语） 当几个人同时说话时）需要多年使用清晰、广泛的语言的经验 知识和执行功能的成熟。这些观察表明，言语的获得 患有唐氏综合症的儿童的感知和听力里程碑可能会延迟或中断，因为 智力功能、语言知识和认知处理的局限性。该项目的第一个目标 评估患有唐氏综合症的婴儿、儿童和成人的音素感知，重点是 描述婴儿对母语和非母语言语对比的辨别并检查听力的影响 儿童和成人辅音识别的丧失。第二个目标检验成熟的假设 唐氏综合症患者的选择性倾听策略遵循延迟的发展过程 综合症，导致更容易受到竞争背景声音的干扰。第三个目标 表征儿童在存在竞争背景声音的情况下识别语音的能力， 患有唐氏综合症的成年人，考虑到语言知识和语言等因素的个体差异 工作记忆。该项目产生的结果预计将为有关的理论模型提供信息 唐氏综合症患者言语感知和听力能力的发展，并且具有 有可能为在嘈杂环境中最大化语音通信结果的策略提供初步指导 教室等环境。