ARTICULATORY AND PERCEPTUAL CORRELATES OF SYLLABLE STRUC

该建议描述的研究，将确定发音，声学和感知相关的基本音节类型在英语语音生产。 本研究也为进一步研究影响语音中音节组织的因素提供了基础。 描述了两个项目，其中采用了启发式的范例，扬声器重复令牌的各种音节结构的节拍器的时间。 然后，每个实验都检查了以不同速度产生序列的效果。 一项初步研究表明，每种音节类型的特点是在不同的时间方面的稳定性在一个极端的各种速率。 此外，飞行员揭示了模态转换发生的扬声器改变率。 第一个拟议的项目将分析先前获得的一组发音数据，其中包括在矢状面的发音运动以及声门开放的时间过程的指标。 这些发音记录将被分析的相关基本音节结构，以及梯度和突然变化的时间组织由于速率的变化。这样的分析将揭示方面的手势定时保持稳定的一个特定的音节结构，并受到系统的速率变化。 在第二个项目中，将对声学记录进行感知分析，以确定听众在识别音节类型时使用的清晰度和声学方面。 以这种方式，也将获得音节结构的感知相关。 这里提出的研究将提供一个明确的表征的时间结构的基本音节类型，以及提供一个基础，以确定哪些因素在生产和感知引起音节结构的讲话一般。 因此，该项目的研究结果将对言语产生，言语失用症，语言习得和语言学的研究进展非常重要。

This proposal describes research which will determine articulatory, acoustic and perceptual correlates of the basic syllabic types in English speech production. This research also provides the basis for future research which will determine the factors which contribute to the appearance of syllabic organization in speech. Two projects are described which employ an elicitation paradigm in which speakers repeat tokens of various syllable structures in time to a metronome. Each experiment, then, examines the effect of producing sequences at different rates. A pilot study has revealed that each syllable type is characterized by stability in various temporal aspects across an extreme variety of rates. Also the pilot reveals modality shifts which occur as speakers change rates. The first proposed project will analyze a previously acquired set of articulatory data which includes articulatory motion in the sagittal plane as well as an indicator of the time course of glottal opening. These articulatory records will be analyzed for correlates of basic syllable structures, as well as for gradient and sudden changes in temporal organization due to rate changes. Such analyses will reveal aspects of gestural timing which remain stable for a particular syllable structure, and which are subject to systematic rate variation. In the second project, acoustic records will be submitted to perceptual analyses in order to determine which aspects of the articulation and acoustics are used by listeners in identifying a syllabic type. In this manner, perceptual correlates of syllable structure will also be obtained. The research proposed here will provide a definitive characterization of the temporal structure of basic syllable types, as well as provide a foundation for determining what factors in production and perception give rise to syllabic structure in speech in general. The findings of this project will thus be important for advances in research in speech production, speech apraxia, language acquisition and linguistics.