Speech Perception Assessment and Training System for Aphasia Rehabilitation

失语康复言语感知评估与训练系统

• 批准号: 8001891
• 负责人: James D Miller
• 金额: $ 10万
• 依托单位: COMMUNICATION DISORDERS TECHNOLOGY, INC
• 依托单位国家: 美国
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-07-13 至 2013-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8001891
• 关键词: Acoustics; Address; Adult; Anomia; Aphasia; Attention; Caregivers; Cell Nucleus; Chronic; Client; Clinic; Clinical; Cognitive; Cognitive deficits; Comprehension; Computer software; Computers; Development; English Language; Equilibrium; Evaluation; Focus Groups; Fostering; Frequencies; Future; Goals; Hearing; Home environment; Impairment; Indiana; Individual; Instruction; Knowledge; Language; Language Therapy; Linguistics; Measures; Methods; Modification; Monitor; Nature; Noise; Participant; Pathologist; Patients; Perception; Performance; Phase; Phonetics; Population; Population Heterogeneity; Procedures; Process; Publishing; Reading; Recording of previous events; Recruitment Activity; Rehabilitation therapy; Research; Research Design; Research Personnel; Sampling; Scotoma; Semantics; Short-Term Memory; Signal Transduction; Speech; Speech Perception; Speech Sound; Stimulus; System; Testing; Time; Training; Translations; Treatment Protocols; Universities; Variant; aphasia rehabilitation; aphasic; base; computerized; design; experience; improved; innovation; lexical; meetings; novel; phonology; programs; public health relevance; remediation; response; skills; software systems; sound; speech recognition; syntax; telerehabilitation

DESCRIPTION (provided by applicant): This project will test the feasibility of a computerized speech perception assessment and training system (SPATS-AR) as a novel aphasia rehabilitation option. SPATS-AR will be developed by modifying existing software that has been found to be successful in improving speech recognition by hearing-impaired listeners (SPATS-HI) and by adult learners of English (SPATS-ESL). The modifications needed to adapt the system for aphasia rehabilitation will be identified and the potential of the modified system will be evaluated. The project has a special focus on improving speech-perception capacities. This has the promise of improving language comprehension skills more broadly as speech-perception impairments appear to have a cascading effect on higher levels of language, negatively impacting comprehension of words and sentences. SPATS provides objective, automated training in the identification of the building blocks of spoken English, syllable constituents, and in the recognition of naturally spoken meaningful, sentences. Training in identifying the constituents of syllables (onsets, nuclei, and codas) is designed to give clients necessary skills for attacking difficult words and monitoring their own speech. These sounds have been ranked in their importance based on their lexical and textual frequencies of occurrence. Three special features have proven effective in training: (a) the graduated introduction of items based the item's importance and the client's performance; (b) Adaptive Item Selection (AIS), a proprietary method of selecting items for training; and, (c) the "post-response rehearing" option that allows the client to compare the target sound with the one mistaken for it. Interleaved with constituent training is a unique sentence testing and training system, which gives practice in top-down cognitive (e.g., working memory) and bottom-up linguistic skills. Importantly, in aphasia, comprehension problems have been found to be related to not only linguistic processing difficulties (at sublexical, lexical, and/or syntactic levels), but also to concomitant cognitive deficits (e.g., attention, working memory). Thus, SPATS appears well suited to target the listening, reading, and cognitive skills that are frequently compromised in aphasia. In Phase I, participants with mild to moderate aphasia will be recruited from the Indiana University Speech and Hearing Clinic. It is anticipated that the syllable constituent tasks will need to be greatly simplified by the use of smaller sets of sounds. The sentence task will need to be modified by adding new sentences with simpler syntactic constructions, increasing the signal-to-noise ratios, and simplifying the display of target and foil words. The strategy will be to begin with stimuli and procedures similar to those now used with ESL and HI populations and then alter the procedures as dictated by the performance of aphasic clients. It is anticipated that SPATS-AR, as finalized in Phase II, will be a valuable rehabilitative option not only because of its content but also because of its telerehabilitation potential for at-home practice. PUBLIC HEALTH RELEVANCE: This project will test the feasibility of a computerized Speech Perception Assessment and Training System (SPATS) as a novel aphasia treatment protocol. SPATS has proven effective in training both hearing- impaired listeners and learners of English as a second language to improve their ability both to identify English speech sounds and to recognize naturally spoken, meaningful sentences. A version of SPATS specifically designed to meet the needs of individuals with aphasia has the potential to improve these individuals' word recognition, comprehension, and cognitive skills and to offer a telerehabilitation option that may increase the efficiency of therapy, foster at-home practice, and bring treatment activities to those unable to regularly attend speech-language therapy sessions.

描述(由申请人提供)：该项目将测试计算机化言语感知评估和训练系统(SPATS-AR)作为一种新的失语症康复方案的可行性。SPATS-AR将通过修改已被发现成功改善听力受损听众(SPATS-HI)和成人英语学习者(SPATS-ESL)语音识别的现有软件来开发。将确定使该系统适应失语症康复所需的修改，并将评估修改后的系统的潜力。该项目特别关注提高言语感知能力。这有望在更广泛的范围内提高语言理解技能，因为言语感知障碍似乎对更高水平的语言具有级联效应，对单词和句子的理解产生负面影响。SPATS在识别英语口语的构成要素、音节成分以及识别自然说出的有意义的句子方面提供了客观的、自动化的培训。在识别音节成分(音节、核心和尾音)方面的培训旨在为客户提供必要的技能，以攻击困难的单词和监控他们自己的语音。根据它们在词汇和文本中出现的频率，对这些声音的重要性进行了排名。有三个特殊功能在培训中被证明是有效的：(A)根据项目的重要性和客户的表现逐步引入项目；(B)自适应项目选择(AIS)，这是一种选择培训项目的专有方法；以及(C)允许客户将目标声音与错误的目标声音进行比较的“响应后重听”选项。与成分训练交织在一起的是一个独特的句子测试和训练系统，它提供自上而下的认知(例如，工作记忆)和自下而上的语言技能的练习。重要的是，在失语症中，理解问题被发现不仅与语言处理困难(在亚词汇、词汇和/或句法水平上)有关，而且与伴随而来的认知缺陷(如注意力、工作记忆)有关。因此，SPATS似乎非常适合于针对失语症患者经常受到影响的听力、阅读和认知技能。在第一阶段，患有轻度到中度失语症的参与者将从印第安纳大学言语和听力诊所招募。预计音节构成任务将需要通过使用较小的发音集合来大大简化。将需要修改句子任务，添加具有更简单句法结构的新句子，提高信噪比，并简化目标词和陪衬词的显示。该策略将从类似于现在用于ESL和HI人群的刺激和程序开始，然后根据失语症患者的表现改变程序。预计在第二阶段最后敲定的SPATS-AR将是一个有价值的康复选择，不仅因为它的内容，而且因为它有可能在家中练习。 公共卫生相关性：该项目将测试计算机化言语感知评估和培训系统(SPATS)作为一种新的失语症治疗方案的可行性。SPATS已被证明在训练听力受损的听者和将英语作为第二语言的学习者方面有效，以提高他们识别英语语音和识别自然说出的有意义的句子的能力。专为满足失语症患者需求而设计的SPATS版本有可能改善这些患者的单词识别、理解和认知技能，并提供远程康复选项，可能会提高治疗效率，促进在家实践，并为无法定期参加语言治疗课程的人带来治疗活动。