ELECTROPHYSIOLOGY

本课题提出了电诱发听觉测量的研究课题。 脑干反应(EABR)与电诱发的全神经动作 潜力(EAP)。我们建议对门槛和 随着刺激水平的增长反应，但也会强调时间性 应对措施，如从难熔状态恢复。我们以前的 研究表明，这些措施对退行性变很敏感 听觉系统的改变，也可能与感知 通过植入物说话。我们在这里建议使用这些和其他 解决问题的电生理和心理物理措施 关于人工耳蜗术者的适配策略。我们假设 我们通过电生理和电信号获得的信息 对个别人工耳蜗者的心理物理测试将使我们能够 选择更合适的语音处理算法，从而最大化 设备的性能。我们将评估以下几种方法 可以调整语音处理器的编程以增加 与项目1相结合的语音感知任务的表现- 听力学和语音处理。我们还将评估在多大程度上 生理测试可以作为选择特定语音的基础 在听觉训练中使用的刺激要求与项目#5- 语音和语言，并选择在音乐中使用的特定刺激 与项目3--音乐感知相关的培训任务。

This project proposes studies measuring the electrically evoked auditory brainstem response (EABR) and the electrically evoked whole nerve action potential (EAP). We propose to make measurements of the threshold and growth of response with stimulus level, but will also emphasize temporal response measures such as recovery from refractory state. Our previous work has demonstrated that these measures are sensitive to degenerative changes in the auditory system and may also be related to perception of speech through the implant. We propose here to use these and other electrophysiological and psychophysical measures to address issues regarding fitting strategies in cochlear implant users. We hypothesize that the information that we gain through electrophysiological and psychophysical testing of individual cochlear implant users will allow us to choose more appropriate speech processing algorithms thereby maximizing performance with the device. We will evaluate several ways in which the programming of the speech processor may be adjusted to increase performance on speech perception tasks in conjunction with Project #1 - Audiology and Speech Processing. We will also evaluate the extent to which physiological tests may serve as a basis for choosing particular speech stimuli to use in auditory training asks in conjunction with Project #5 - Speech and Language and to choose particular stimuli for use in music training tasks in conjunction with Project 3 - Music Perception.