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TALKER VARIABILITY AND EARLY WORD REPRESENTATIONS

说话者的可变性和早期的单词表达

基本信息

批准号：
2772852
负责人：
Derek M Houston
金额：
$ 2.82万
依托单位：
JOHNS HOPKINS UNIVERSITY
依托单位国家：
美国
项目类别：
财政年份：
1999
资助国家：
美国
起止时间：
1999-03-28 至
项目状态：
未结题

来源：
https://reporter.nih.gov/project-details/2772852
关键词：
auditory stimulus behavioral /social science research tag clinical research early experience human subject infant human (0-1 year) language development memory neural information processing sound perception speech recognition videotape /videodisc voice

项目摘要

DESCRIPTION (Applicant's abstract): Recent research in infant speech perception indicates that infants learn a great deal about the sound organization of their language during the first year of life and that they use this information as a indicator of the syntactic organization of the language. Current diagnostic methods for identifying Specific Language Impairments (SLI) are only applicable with children 3 to 4 years of age. A better demarcation of the critical linguistic landmarks during the period between 6- and 18-months of age will help in developing diagnostic tools for SLI that can be used at a much earlier developmental stage. These experiments will investigate the conditions in which infants form representations of words that are generalizable across different voices. Infants will be familiarized with works presented with one or several voices and then tested on their recognition of these words presented in a different voice by examining their orientation times to passages containing the familiarized words compared to passages that do not. The first part of the project will investigate how well infants can generalize words across specific voice- property differences (i.e., voice gender, average pitch, pitch contour). In Part Two infants are familiarized with words using several voices to explore the possibility that word representations might be more or less robust and generalizable when formed with multiple talkers than with a single talker. Part Three investigates the possibility that experience with a talker's voice improves infants' ability to analyze and encode the speech from that talker. Specifically, infants will be pre-exposed to the voice that will present the passages before the familiarization phase to see if word recognition performance is improved.

描述(申请人摘要)：婴儿语言的最新研究知觉表明婴儿对声音学到了很多。在他们生命的第一年组织他们的语言他们使用这些信息作为句法组织的指示符对语言的理解。当前的诊断方法用于识别特定的语言障碍(SLI)仅适用于3至4岁的儿童几年前。更好地划分关键语言里程碑在6个月到18个月之间的期间将有助于开发可在更早的时间使用的SLI诊断工具发展阶段。这些实验将调查这些条件其中婴儿形成了可概括的词语的表征在不同的声音中。婴儿将熟悉工作向他们展示一个或几个声音，然后在他们的通过检查来识别以不同声音呈现的这些单词他们对包含熟悉单词的段落的熟悉时间相比之下，没有这样做的段落。该项目的第一部分将调查婴儿在特定声音中概括单词的能力属性差异(即，声音性别、平均音调、音调轮廓)。在第二部分中，婴儿使用不同的声音熟悉单词探索单词表示可能或多或少当与多个说话者组成而不是与一个人说话。第三部分考察了体验的可能性用说话者的声音提高婴儿的分析和编码能力那位演讲者的演讲。具体地说，婴儿将预先接触到对于将在熟悉之前呈现段落的声音阶段，以查看单词识别性能是否有所提高。