Cochlear Implants: Electric and Acoustic Stimulation

描述（由申请人提供）：传统上，在存在噪声的情况下，耳蜗植入体接受者在语音清晰度测量方面表现不佳。最近，听众将电和低频声刺激相同的耳蜗已经表现出显着的改善，在噪声中的语音感知超过的总和，单独的声学和电刺激的可懂度分数。因此，本研究的主要目的是评估低频声学处理，包括频率分辨率，时间分辨率和耳蜗压缩，是否可以帮助解释组合电和声刺激的协同效应。此外，将在植入前和植入后检查这些听者的子集，以研究部分植入的电极阵列对双频声学处理的影响，包括相对较小的离散频率步长中的低频安静阈值、耳蜗压缩、时间分辨率、频率分辨率以及安静和噪声中的言语感知估计。植入前和植入后均需要测量，以准确评估手术对耳蜗顶端的影响。

DESCRIPTION (provided by applicant): Cochlear implant recipients have traditionally performed poorly on measures of speech intelligibility in the presence of noise. Recently, listeners incorporating both electric and low-frequency acoustic stimulation of the same cochlea have demonstrated significant improvements in speech perception in noise that exceed the sum of the intelligibility scores of acoustic and electric stimulation, alone. Thus, the main purpose of this study is to assess whether low-frequency acoustic processing, including frequency resolution, temporal resolution, and cochlear compression, can help account for the synergistic effect of combined electric and acoustic stimulation. Additionally, a subset of these listeners will be examined both pre- and post-implant to investigate the effects of the partially implanted electrode array on tow-frequency acoustic processing including low-frequency quiet thresholds in relatively small, discrete frequency steps, cochlear compression, temporal resolution, frequency resolution, and estimates of speech perception both in quiet and in noise. Both pre- and post-implant measures will be required to accurately assess the effects of the surgery on the apical end of the cochlea.