Processes underlying immature auditory perception during adolescence

项目摘要/摘要 听力和听力对于青少年如何交流、学习新信息、 并接触技术和文化；然而，在听觉感知任务中的表现 需要很长时间才能成熟。因为很少有关于听觉的研究集中在 在典型发育的青少年中，人们对其背后的机制知之甚少 不成熟。对长期成熟背后的过程缺乏了解 典型听者的听力和听力能力可能导致听力障碍的诊断困难 加工障碍和其他沟通障碍，从而影响公众健康。长的- 本项目的学期目标是阐明听觉发育的潜在机制。 青春期的知觉。目前的目标是评估听觉功能的程度 刺激编码和各种认知过程导致不成熟的听觉知觉 在青春期。中心假设是听觉和言语上的不成熟表现 青春期的知觉任务可以归因于在时间上的成熟变化 编码和在特定认知过程中的发展改进所需的 每项任务。这一假设将通过追求两个具体目标来检验：(1)评估 听觉时间加工和认知功能对幼稚的贡献 青春期在基本听觉任务上的表现。(2)评价听觉的贡献 时间加工和认知功能对言语知觉任务幼稚表现的影响 在青春期。这些目标将通过组合感知测试来实现， 斜视测量法和眨眼率用来标示积极倾听、听觉过程中的认知过程 无人值守刺激期间用于索引时间和频谱编码的诱发电位 演示，以及标准化的神经心理和语言测试，以评估过程 有已知的成熟课程。该项目将产生实验协议，将被 适用于开发有关青少年听觉处理的诊断测试 和年轻人。它还可以为未来的治疗提供信息，旨在支持或改善 青少年和青壮年沟通中潜在的听觉感知过程 精神错乱。

Project Summary/Abstract Hearing and listening are critical to how adolescents communicate, learn new information, and engage with technology and culture; however, performance on auditory perceptual tasks takes a long time to become mature. Because few studies of auditory perception have centered on typically-developing adolescents, little is known about the mechanisms underlying this immaturity. The lack of knowledge of the processes underlying the prolonged maturation of hearing and listening abilities in typical listeners can lead to difficulties in the diagnosis of auditory processing disorders and other communication disorders, thus affecting public health. The long- term goal of this project is to elucidate the mechanisms underlying the development of auditory perception during adolescence. The present objective is to evaluate the extent to which auditory stimulus encoding and various cognitive processes contribute to immature auditory perception during adolescence. The central hypothesis is that immature performance on auditory and speech perception tasks during adolescence can be attributed to both maturational changes in temporal encoding and to developmental improvements in the specific cognitive processes required by each task. This hypothesis will be tested by pursuing two specific aims: (1) Evaluate the contribution of auditory temporal processing and cognitive functions to immature naïve performance on basic auditory tasks during adolescence. (2) Evaluate the contribution of auditory temporal processing and cognitive functions to naïve performance on speech perception tasks during adolescence. These aims will be addressed using a combination of perceptual testing, pupillometry and blink-rate to index cognitive processes engaged during active listening, auditory evoked potentials to index temporal and spectral encoding during unattended stimulus presentations, and standardized neuropsychological and language tests to evaluate processes with known maturational courses. This project will yield experimental protocols that will be applicable for the development of diagnostic tests regarding auditory processing in adolescents and young adults. It also could inform future therapies that aim to support or improve the processes underlying auditory perception in adolescents and young adults with communication disorders.