权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Spectral Cue Use in Listeners with Poor Word Recognition

单词识别能力差的听众中的频谱提示使用

基本信息

批准号：
6833537
负责人：
SUSAN L PHILLIPS
金额：
$ 6.45万
依托单位：
UNIVERSITY OF NORTH CAROLINA GREENSBORO
依托单位国家：
美国
项目类别：
财政年份：
2003
资助国家：
美国
起止时间：
2003-01-13 至 2006-12-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/6833537
关键词：
Spectral Cue Use Listeners Poor

项目摘要

¿ Principal Investigator/Program Director (Last, first, middle): Phillips, Susan L. DESCRIPTION: State the application's broad, long-term objectives and specific aims, making reference to the health relatedness of the project. Describe concisely the research design and methods for achieving these goals. Avoid summaries of past accomplishments and the use of the first person. This abstract is meant to serve as a succinct and accurate description of the proposed work when separated from the application. If the application is funded, this description, as is, will become public information. Therefore, do not include proprietary/confidential information. DO NOT EXCEED ]'HE SPACE PROVIDED. There is a subgroup of elderly hearing-impaired people who suffer exceptional communication deficits in the form of poor speech perception which is unaccounted for by the amount of hearing loss. Audiologists lack an understanding of their specific perceptual difficulties, and are unable to offer them adequate treatment. The aim of this project is to uncover specific deficits involved and determine the potential for auditory training with digital enhancement of spectral cues. Long-term goals are to improve speech perception for these individuals with amplification and rehabilitation strategies. It is hypothesized that these listeners will demonstrate poorer voiced consonant recognition, wherein the use of spectral cues are deficient, and that digital enhancement of the spectral cue will be necessary in the auditory training process. Experiment I will confirm that these listeners will have different voiced consonant confusions than those with good speech perception, and whether voice gender or vowel context is pertinent to these confusions. This will be accomplished with a closed-set identification task of the voiced/b/, Idt, Igl,/m/, In/, Iv/, IzJ in the contexts of /i/,/a/, and lu! spoken by a male and a female, and presented at 95 dB SPL. Secondly, it will be determined which spectral cues are unutilized by the poor discriminators in the recognition of the Ib/-/dl and/m/-/nl distinctions in a single-interval, two-alternative forced-choice identification procedure of CV's edited to include only isolated spectral cues. Lastly the efficacy of psychoacoustic forced-choice training methods will be examined with a 12 dB digital enhancement of a particular spectral cue on the group of poor discriminators. Using forced-choice training measures and digital enhancement as part of auditory training with elderly listeners is innovative. The lack of success we have had as audiologists in improving the quality of life for these people is am important clinical problem that has not been hitherto addressed. The findings from the proposed research will provide specific information on the perceptual deficits experienced by this group of people. This is a necessary first step towards devising successful amplification and rehabilitation strategies in order to bring these people out of the isolation caused by the inabilityto communicate effectively. The outcomes of this project are expected to provide the background necessary to make a competetive R01 bid. PERFORMANCE SITE ========================================Section End===========================================

？首席调查员/项目主任(最后、第一、中间)：菲利普斯，苏珊·L描述：说明应用程序的广泛、长期目标和具体目标，并参考项目与健康的相关性。简明扼要地描述实现这些目标的研究设计和方法。避免总结过去的成就和使用第一人称。此摘要的目的是在脱离应用程序时，作为对拟议工作的简洁和准确的描述。如果申请得到资助，这一描述将成为公开信息。因此，不包括专有/机密信息。请勿超过所提供的空间。有一群老年听力受损的人患有特殊的沟通障碍，表现为言语感知能力差，这是听力损失无法解释的。听力专家对他们具体的知觉困难缺乏了解，也无法为他们提供适当的治疗。这个项目的目的是发现涉及的特定缺陷，并确定通过数字增强光谱提示进行听觉训练的潜力。长期目标是通过放大和康复策略来改善这些人的言语感知。假设这些听者将表现出较差的浊辅音识别，其中光谱线索的使用是不足的，并且在听觉训练过程中需要对光谱线索进行数字增强。实验I将证实这些听者会有不同于那些有良好言语知觉的人的发声辅音混淆，以及语音性别或元音语境是否与这些混淆有关。这将通过在/i/、/a/和lu的上下文中的浊音/b/、idt、igl、/m/、in/、iv/、izj的闭集识别任务来完成！由一男一女讲，以95分贝SPL呈现。其次，在单区间、两种选择的强制选择识别过程中，将确定哪些光谱线索未被差的鉴别器在识别Ib/-/dl和/m/-/nl区分中使用，CV被编辑为仅包括孤立的光谱线索。最后，心理声学强迫选择训练方法的有效性将通过对一组差判别器的特定光谱线索进行12分贝数字增强来检验。使用强迫选择训练措施和数字增强作为老年听众听力训练的一部分是创新的。作为听力学专家，我们在改善这些人的生活质量方面缺乏成功，这是一个到目前为止还没有解决的重要临床问题。拟议中的研究结果将提供关于这一群体经历的知觉缺陷的具体信息。这是朝着制定成功的扩大和康复战略迈出的必要的第一步，以便使这些人走出因无法有效沟通而受到的孤立。预计该项目的结果将为竞标R01提供必要的背景资料。表演网站========================================Section End===========================================