Perceptual consequences of cochlear implant

项目说明 人工耳蜗是一种非常成功的神经假体，可以增强或恢复重度患者的听力。 听力受损。然而，不同的人工耳蜗者的表现有很大差异，特别是在 对于嘈杂的环境和频谱复杂的刺激物，如音乐。我们开发了快速可靠的工具来 评估感知反应的模式，这些模式对绩效结果的可变性具有相当的预测性。这些 在成人中建立的新程序将允许首次对单通道进行系统调查 人工耳蜗术后儿童听力表现的测量及其与听力表现的关系。这个 结果将指导针对收听者定制的编程方法的改进，从而改进收听 超能力。 提出了三个目标：1)开发和评估听者定制的人工耳蜗编程，基于 聚焦或停用选定的频道，这将提高复杂听力任务的表现；2) 评估长期聆听体验在多大程度上提高了听者定制的性能 策略；以及3)建立我们对语前聋人基本心理物理测量的初步理解 和早期植入的儿童，以确定通往儿科、听者定制节目的最佳途径 接近了。 这些研究的结果有望促进我们对人工耳蜗术的理解。 被编程为最好地提供具有光谱挑战性的刺激。最终，这些发现可能会带来改进 儿童和成人人工耳蜗植入听者的功能结果并提供对如何 听觉系统的发育是通过植入人工耳蜗术改变输入的。

Project Description Cochlear implants are highly successful neural prostheses that enhance or restore hearing to the severely hearing impaired. However, performance varies considerably among cochlear implant listeners, particularly in noisy environments and for spectrally complex stimuli like music. We have developed fast and reliable tools to assess patterns of perceptual responses that are fairly predictive of variability in performance outcomes. These new procedures, established in adults, will allow for the first systematic investigation of single-channel performance measures and their relation to listening performance in children with cochlear implants. The results will guide the refinement of listener-tailored programming methods, leading to improvements in listening abilities. Three aims are proposed: 1) to develop and assess listener-tailored cochlear implant programming, based on the focusing or deactivation of select channels, that will improve performance on complex listening tasks; 2) to assess the degree to which chronic listening experience enhances performance with listener-tailored strategies; and 3) to establish our first understanding of basic psychophysical measures in prelingually deaf and early implanted children to define the best route towards pediatric, listener-tailored programming approaches. The results of these studies are expected to advance our understanding of how cochlear implants should be programmed to best deliver spectrally challenging stimuli. Ultimately, the findings may lead to improved functional outcomes for both pediatric and adult cochlear implant listeners and provide insight into how the auditory system develops with altered input through a cochlear implant.