Behavioral and neurophysiological investigations of individual variation in cue weighting strategies

线索加权策略个体差异的行为和神经生理学研究

• 批准号: 1827409
• 负责人: Alan Yu
• 金额: $ 48.05万
• 依托单位: University of Chicago
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-09-01 至 2024-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1827409&HistoricalAwards=false
• 关键词: Behavioral; neurophysiological; investigations; individual; variation

The perception of speech sounds often requires listeners to pay attention to multiple cues at once. The weighting of the relative importance of cues can nonetheless vary across individuals. Little is known regarding the sources of such variation, however. This project will investigate potential mechanisms underpinning such variability. The project will broaden the empirical database on which theories of speech perception and production are grounded as well as providing insights into first/second language acquisition and pedagogy in terms of the development of personalized training for individual language learners. The project will also introduce young women and under-represented minorities to STEM fields via the study of the language sciences through planned outreach programs. The findings from this project may inform clinical research on developmental or acquired perceptual and language impairments, and may also serve to inform research on speech related technologies.This project focuses on two potential explanations for individual variability in cue weighting. Listeners might differ in early auditory encoding, which affects the reliability, hence weighting, of certain cues that support phonological contrasts. Listeners might also differ in cue integration strategy such that some utilize a continuous cue integration strategy whereby cue information is integrated as they become available, while others might employ a buffer strategy so that phonemic identification is postponed until all necessary information becomes available. This project will investigate individual variability in cue weighting using brainstem and cortical responses to speech sounds within the same individual, thus providing a comprehensive neurophysiological profile that underlies individual patterns of real-time cue weighting process, as measured with eye-movements.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

语音的感知通常要求听众一次关注多个线索。尽管如此，提示的相对重要性的加权可能会因个人而异。但是，关于这种差异的来源知之甚少。该项目将调查为这种变异性的潜在机制。该项目将拓宽经验数据库，在该数据库中，就个人语言学习者的个性化培训的开发而言，对语音感知和生产的理论依据，并提供对第一/第二语言获取和教学法的见解。该项目还将通过计划的外展计划来研究年轻妇女和代表性不足的少数民族来STEM领域。该项目的发现可能会为有关发育或获得的知觉和语言障碍的临床研究提供信息，还可以为有关语音相关技术的研究提供信息。该项目重点介绍了提示加权中个人变异性的两个潜在解释。听众在早期听觉编码中可能会有所不同，这会影响某些支持语音对比的线索的可靠性，因此加权。听众在提示集成策略上可能也有所不同，因此有些人使用连续的提示集成策略，在该策略中，提示信息随着可用性而集成，而其他人可能会采用缓冲策略，以便将语音识别推迟到所有必要的信息可用。该项目将使用脑干和对同一个人中语音的语音响应进行提示加权的个人变异性，从而提供了全面的神经生理学特征，其基础是实时提示加权过程的个体模式，正如通过眼动衡量的。该奖项反映了NSF的法定任务，并通过评估了基金会的范围来反映出与基金会的支持，并已被评估了基金会的范围。

项目成果

Atypical context-dependent speech processing in autism

自闭症患者非典型的依赖于语境的言语处理

• DOI: 10.1017/s0142716420000387
• 发表时间: 2020
• 期刊: Applied Psycholinguistics
• 影响因子: 2.1
• 作者: Yu, Alan Chi;To, Carol Kit
• 通讯作者: To, Carol Kit

Toward an individual-difference perspective on phonologization

从个体差异的角度看待音系化

• DOI: 10.5334/gjgl.661
• 发表时间: 2021
• 期刊: Glossa: a journal of general linguistics
• 作者: Yu, Alan C.

Tonal context influences tone-duration interaction: Evidence from Cantonese

声调语境影响声调-持续时间的相互作用：来自粤语的证据

• DOI: 10.1121/10.0017517
• 发表时间: 2023
• 期刊: JASA Express Letters
• 影响因子: 1
• 作者: Yu, Alan C.

Individual Differences in Categorization Gradience As Predicted by Online Processing of Phonetic Cues During Spoken Word Recognition: Evidence From Eye Movements

• DOI: 10.1111/cogs.12948
• 发表时间: 2021-03-01
• 期刊: COGNITIVE SCIENCE
• 影响因子: 2.5
• 作者: Ou, Jinghua;Yu, Alan C. L.;Xiang, Ming
• 通讯作者: Xiang, Ming