Phonological variation and spoken word recognition

语音变异和口语单词识别

• 批准号: 7389696
• 负责人: DAVID W GOW
• 金额: $ 24.57万
• 依托单位: MASSACHUSETTS GENERAL HOSPITAL
• 依托单位国家: 美国
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-02-01 至 2009-09-17
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7389696
• 关键词: Accounting; Acoustics; Address; Assimilations; Auditory; Basic Science; Behavioral; Berry; Blur; Categories; Cognitive; Communication impairment; Competence; Cues; Development; Discrimination; Electroencephalography; Elements; Goals; Group Processes; Grouping; Hares; Hearing; Knowledge; Language; Learning; Linguistics; Magnetic Resonance Imaging; Magnetoencephalography; Maps; Measures; Modeling; Modification; Monitor; Pattern; Phonetics; Play; Principal Investigator; Probability; Process; Purpose; Rate; Research; Role; Signal Transduction; Speech; Standards of Weights and Measures; Stimulus; Stream; Structure; Surface; Techniques; Technology; Testing; Variant; Work; analog; base; coping; insight; language processing; lexical; lexical processing; member; phonology; programs; relating to nervous system; remediation; research study; sound

DESCRIPTION (provided by applicant): The overall goal of this project is to determine how listeners recognize words whose surface forms have been modified as a result of lawful phonological processes including English coronal place assimilation. This project will continue the development, testing and refinement of a comprehensive theoretical framework for understanding this problem that emphasizes the importance of fine phonetic detail and the role of general auditory grouping mechanisms in processing. The work is organized around three aims: 1) to determine what role general auditory grouping mechanisms play in the processing of assimilated speech and what level of representation they operate on, (2) to determine how phonetic fine structure that has been shown to influence lexical processing is reflected in the categorization of assimilated speech, and (3) to determine what role different types of implicit linguistic knowledge play in the processing of assimilated items heard in context. These issues will be examined through a combination of off-line perceptual tasks (phoneme identification, AXB discrimination and categorical goodness rating tasks), on-line behavioral tasks (phoneme monitoring and form priming), and the use of techniques combining magnetoencephalography (MEG), electroencephalography (ERP), and functional and structural MRI. Stimuli in these experiments will consist of a combination of synthesized speech, unmodified and digitally modified natural speech, and synthesized speech analogs observing carefully measured or controlled acoustic parameters. This work will provide insight into the relationship between linguistic competence, auditory scene analysis mechanisms and spoken word recognition. As basic research it provides a framework for understanding these processes that may be useful in characterizing and developing effective remediation for communicative disorders, and in developing automatic speech synthesis and recognition technologies that may serve people with a variety of perceptual and communicative disorders.

描述（由申请人提供）：该项目的总体目标是确定听众如何识别由于合法语音过程（包括英语冠状位置同化）而改变表面形式的单词。该项目将继续开发、测试和完善一个全面的理论框架，以理解这个问题，强调精细语音细节的重要性以及一般听觉分组机制在处理中的作用。这项工作围绕三个目标进行组织：1）确定一般听觉分组机制在同化语音处理中发挥什么作用以及它们在何种表征水平上发挥作用，（2）确定已被证明影响词汇处理的语音精细结构如何反映在同化语音的分类中，以及（3）确定不同类型的隐性语言知识在处理上下文中听到的同化项目中发挥什么作用。 这些问题将通过结合离线感知任务（音素识别、AXB 辨别和分类优度评分任务）、在线行为任务（音素监测和形式启动）以及使用脑磁图 (MEG)、脑电图 (ERP) 以及功能和结构 MRI 相结合的技术来检查。这些实验中的刺激将包括合成语音、未经修改和数字修改的自然语音以及观察仔细测量或控制的声学参数的合成语音模拟的组合。 这项工作将深入了解语言能力、听觉场景分析机制和口语单词识别之间的关系。作为基础研究，它提供了一个理解这些过程的框架，可能有助于描述和开发有效的沟通障碍治疗方法，以及开发自动语音合成和识别技术，为患有各种感知和沟通障碍的人们服务。