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

Speech Perception Training: Advanced Scoring and Feedback Methods

言语感知训练：高级评分和反馈方法

基本信息

批准号：
10006332
负责人：
Silvio P Eberhardt
金额：
$ 45.12万
依托单位：
SEEHEAR, LLC
依托单位国家：
美国
项目类别：
财政年份：
2017
资助国家：
美国
起止时间：
2017-06-01 至 2022-08-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/10006332
关键词：
Acoustics Address Adult Age Association Learning Auditory Auditory Threshold Comprehension Computer software Control Groups Data Data Analyses E-learning Effectiveness Elderly Feedback Funding Individual Label Laboratories Learning Lipreading Memory Methods Modality Noise Online Systems Outcome Paired-Associate Learning Participant Perceptual learning Persons Phase Publications Randomized Controlled Clinical Trials Randomized Controlled Trials Recovery Reporting Research Research Training Signal Transduction Small Business Innovation Research Grant Speech Speech Perception Stimulus Sum System Systems Development Testing TimeLine Training Verbal Learning Visual Vocabulary Waiting Lists audiovisual speech commercialization comparison group design experience functional gain hearing impairment improved normal hearing novel preservation recruit response social speech in noise speech recognition tool visual learning word learning

项目摘要

Older adults commonly experience hearing difficulties in noisy settings, whether or not their hearing thresholds have increased. Being able to see the person who is talking can significantly ameliorate their hearing difficulties, but the magnitude of the benefit depends greatly on each person’s lipreading ability. Unfortunately, the vast majority of older adults who have had normal hearing during most of their lives are poor lipreaders. With Phase- I SBIR funding, SeeHear LLC realized a web-based speech recognition training system to improve lipreading. The training system implements unique high-contingency feedback following open set recognition responses during training with isolated sentences. High-contingency feedback informs the trainee about the relationship between their perceptual errors and the stimulus at the level of words or phonemes, a key to perceptual learning. Typical software for training with connected speech stimuli provides low-contingency feedback: The feedback does not establish a relationship between the stimulus and the trainee’s perceptual response errors. High- contingency feedback increases lipreading accuracy and speech recognition with audiovisual stimuli in noise in younger normal-hearing (NH) adults. This training approach will be evaluated with older hearing-impaired participants, and it will be extended beyond lipreading training to audiovisual speech recognition training in a noisy background. A second, highly novel, but potentially effective and efficient training paradigm will also be evaluated. This second approach uses a paired associates learning task, in which trainees learn to associate spoken nonsense words with nonsense pictures. The task is designed to encourage trainees to attend closely to the spoken nonsense words while trying to learn the word-to-picture associations. Laboratory testing with younger NH adults shows that lipreading training with this paradigm can deliver significant generalization to lipreading with new stimuli and a new talker. This paradigm will be tested with older adults and will be extended to offer audiovisual training in noise. The proposed project comprises randomized controlled-trial clinical tests and additional training system development. There will be a wait-list control group for comparison to groups assigned to train with sentence stimuli and high- or low-contingency feedback for open set sentence lipreading or audiovisual recognition. Two additional groups will train in the paired associates paradigm: One group will carry out training by lipreading the stimuli, and the other group will carry out training with audiovisual stimuli in speech-shaped noise. All of the participants in the research will undergo laboratory pre- and post-training tests that are designed to determine whether learning during the training sessions generalizes to different speech perception tasks, different stimuli, and different talkers across different modalities (lipreading, auditory-only, and audiovisual speech with acoustic signals in noise). In order to carry out all of the proposed training research and data recovery, the web-based system will be expanded. Successful completion of this Phase-II project will directly support commercialization of the training system.

老年人在嘈杂的环境中通常会遇到听力障碍，无论他们的听力阈值是否都有所增加。能够看到正在说话的人可以显著改善他们的听力困难，但好处的大小在很大程度上取决于每个人的唇语能力。不幸的是，广大的大多数在一生中大部分时间听力正常的老年人都是糟糕的唇读者。使用阶段- 我在SBIR的资助下，SEEHER LLC实现了一个基于网络的语音识别训练系统，以提高唇读能力。训练系统在开放集合识别响应之后实施独特的高应变率反馈在训练过程中使用孤立的句子。高偶然性反馈将关系告知学员在他们的知觉错误和词汇或音素水平的刺激之间，这是知觉学习的关键。使用连接语音刺激进行训练的典型软件提供低偶然性反馈：反馈没有建立刺激和受训者知觉反应错误之间的关系。高- 权变反馈提高了噪声背景下的唇读准确率和语音识别能力听力正常(NH)的年轻成年人。这一培训方法将在年长的听力受损人士中进行评估参与者，它将从唇读培训扩展到视听语音识别培训嘈杂的背景。第二个非常新颖但潜在有效和高效的培训模式也将是已评估。第二种方法使用结对的联想学习任务，受训者在其中学习联想胡言乱语配以胡言乱语的图片。这项任务的目的是鼓励学员密切参与在努力学习单词与图片的联想的同时，对所说的无意义的单词进行学习。实验室测试与年轻的NH成年人表明，使用这种范式的唇读训练可以显著地推广到用新的刺激物和新的说话者朗读嘴唇。这一模式将在老年人中进行测试，并将得到推广提供有关噪音的视听训练。拟议的项目包括随机对照临床试验和额外的培训系统。发展。将有一个等待名单控制组，用于与分配给有判刑训练的组进行比较用于开放式句子唇读或视听识别的刺激和高或低偶然性反馈。二其他小组将在配对伙伴范例中进行培训：一组将通过唇读另一组在语音噪声中用视听刺激进行训练。所有的这项研究的参与者将接受实验室的培训前和培训后测试，旨在确定训练期间的学习是否概括为不同的言语感知任务，不同的刺激，以及不同模式的不同说话者(唇读、纯听觉和带声学的视听语音噪声中的信号)。为了开展所有拟议的培训研究和数据恢复，系统将进行扩展。这一二期项目的顺利完成将直接支持商业化训练系统的一部分。