IOWA COCHLEAR IMPLANT PROJECT

这个子项目是利用由NIH/NCRR资助的中心拨款提供的资源的许多研究子项目之一。子项目和调查员(PI)可能从另一个NIH来源获得了主要资金，因此可能会出现在其他CRISE条目中。列出的机构是针对中心的，而不一定是针对调查员的机构。多年来，爱荷华州人工耳蜗术项目一直致力于研究儿童和成人人工耳蜗术后的临床结果。多年来，植入人工耳蜗者的言语感知能力已经得到了改善，以至于植入考虑的选择标准还不够明确。因此，目前研究的重点是完善人工耳蜗术的标准。这项研究的总体目标是：1)研究扩大植入的选择标准，以包括听力较好的成年人和较早植入儿童；2)制定可靠的评估策略，包括准确评估听觉阈值，以确定儿童在12个月大时是否适合植入人工耳蜗；3)开发和评估用于言语感知和音乐欣赏的新信号处理；4)使用新设计的短电极植入物，评估电信号处理和声音放大的组合；5)改进和扩大电生理学措施的使用，以改善儿童和成人现有的高速语音处理器的适配性；6)评估使用助听器和植入物的听力障碍儿童的交流结果(言语产生、语言、阅读、写作和音乐欣赏)，以确定是否应该扩大植入物的选择标准，以包括听力更好的儿童；7)研究双耳人工耳蜗术的益处；8)确定影响儿童和成人人工耳蜗术长期效益的因素；9)检查在复杂的音乐听力任务中心理物理、心理、言语知觉测量和知觉准确性和评价之间的关系；10)检查系统音乐训练与长期使用人工耳蜗术对音乐感知和评价的影响；11)评估语前和语后耳聋对音乐知觉和评价的影响。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. The Iowa Cochlear Implant program has been engaged in clinical outcomes research studying cochlear implants in children and adults for many years. Speech perception with cochlear implants has improved over the years to the point where selection criteria for implant consideration is poorly defined. The focus of the current study, therefore, is to refine the criteria for cochlear implantation. The overall goals of this research are to: 1) study expansion of selection criteria for implantation to include adults with more hearing and earlier implantation in children; 2) develop a reliable evaluation strategy including accurate assessment of auditory thresholds to determine if a child is a candidate for a cochlear implant by 12 months of age; 3) develop and evaluate novel signal processing for speech perception and music appreciation; 4) evaluate the combination of electrical signal processing and acoustical amplification in adults with more residual hearing using a newly designed short electrode implant; 5) refine and expand the use of electrophysiologic measures to improve fitting of existing and high rate speech processors for young children and adults; 6) assess the communication outcomes (speech production, language, reading, writing, and music appreciation) of children with hearing impairment using hearing aids and those with implants to determine if implant selection criteria should be expanded to include children with more hearing; 7) study the benefits of binaural cochlear implants; 8) determine the factors that affect the long-term benefit of cochlear implants in children and adults; 9) examine the relations among psychophysical, psychological, speech perception measures, and perceptual accuracy, and appraisal in complex music listening tasks; 10) to examine the impact of systematic music training versus long term cochlear implant use on music perception and appraisal; and 11) assess the impact of prelingual versus postlingual onset of deafness on music perception and appraisal.