Cochlear Implants: Electric and Acoustic Stimulation

人工耳蜗：电刺激和声刺激

• 批准号: 6844304
• 负责人: Rene H Gifford
• 金额: $ 4.4万
• 依托单位: ARIZONA STATE UNIVERSITY-TEMPE CAMPUS
• 依托单位国家: 美国
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-01-01 至 2006-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6844304
• 关键词: audiometry; auditory discrimination; auditory feedback; auditory stimulus; auditory threshold; clinical research; clinical trials; cochlear implants; compression; electrostimulus; human subject; medical implant science; noise; patient oriented research; performance; postdoctoral investigator; postoperative state; preoperative state; sound frequency; sound perception; speech recognition

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.

描述（由申请人提供）：在存在噪声的情况下，人工耳蜗植入受体在语音清晰度方面的表现不佳。最近，同一耳蜗的电气和低频声刺激的听众表现出了噪声中语音感知的显着改善，这些噪声仅超过了声学和电刺激的可理解性得分之和。因此，这项研究的主要目的是评估低频声学处理（包括频率分辨率，时间分辨率和人工耳蜗）是否可以帮助解释电气和声学刺激的联合效果。此外，将检查这些听众的一部分，以研究部分植入的植入前和植物后，以研究部分植入的电极阵列对拖车频率的声学处理的影响，包括相对较小的离散频率步骤中的低频安静阈值，工人的平静频率步骤，工人的频率，时间分辨率压缩，时间分辨率，频率分辨率，频率分辨率，频率和估计的语音感知和估算均为安静和安静的噪声。需要进行植入前和植入后的措施，以准确评估手术对耳蜗顶端的影响。