Effects of Speech in Noise Training on Physiology and Perception

说明： 这项退伍军人管理局职业发展计划旨在支持申请者发展成为独立资助的退伍军人管理局研究科学家，研究中枢听觉编码对成功康复听力障碍的贡献。职业生涯规划由课程作业、结果发表和演示、听力学临床时间以及Marjorie Leek博士、Kelly Tremblay博士和Harry Levitt博士的指导组成。这项研究的长期目标是改善老年人和听力损失患者对噪音的感知能力。这项研究的具体目标是清楚地展示听力受损和老年人的生理和行为噪声中信号编码能力，并利用这种理解来探索如何通过噪声中语音训练来改善感知和神经编码。首先，将改变信噪比和背景噪声类型，以了解重要因素，并在听力正常的年轻人、听力正常的老年人和听力损失的人中建立基线。然后，将使用噪声中感知任务和皮质听觉诱发电位进行噪声中语音训练并进行测量。这种行为和生理信息的组合将被用来确定噪声中语音训练的时间进程、概括性和保留效果。

DESCRIPTION: This VA Career Development proposal is designed to support the development of the applicant into an independently funded VA research scientist investigating the contribution of central auditory encoding to successful rehabilitation of hearing impairment. The career plan is made up of coursework, publication and presentation of results, audiology clinic time, and mentoring from Drs. Marjorie Leek, Kelly Tremblay, and Harry Levitt. The long-term goal of this line of research is to improve perception in noise in older individuals and individuals with hearing loss. The specific goals of this study are to clearly demonstrate the physiological and behavioral signal-in-noise encoding abilities in hearing impaired and older individuals, and to use that understanding to explore how perception and neural encoding can be improved through speech-in-noise training. First, signal-to-noise ratio and background noise type will be varied to understand important factors and to establish a baseline in young normal-hearing individuals, older normal-hearing individuals and individuals with hearing loss. Then, speech-in-noise training will be administered and measured using both perception-in-noise tasks and cortical auditory evoked potentials. This combination of behavioral and physiological information will be used to determine the time course, generalization, and retention effects of speech-in-noise training.