ARTICULATORY AND PERCEPTUAL CORRELATES OF SYLLABLE STRUC

这项研究将确定英语言语产生中基本音节类型的发音、声学和知觉的相关性。这项研究也为以后的研究提供了基础，这些研究将确定影响语音中音节组织出现的因素。描述了两个项目，它们使用启发式范例，其中说话者随着节拍器的时间重复各种音节结构的标记。然后，每个实验都检查以不同的速率产生序列的效果。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表现出极不同的音率稳定性。此外，该试验还揭示了随着说话者改变语速而发生的情态转换。第一个拟议的项目将分析先前获得的一组发音数据，其中包括在矢状面上的发音运动以及声门打开的时间进程的指示器。这些发音记录将被分析以寻找基本音节结构的相关性，以及由于速率变化而导致的时间组织的梯度和突然变化。这样的分析将揭示手势计时的一些方面，这些方面对于特定的音节结构保持稳定，并且受到系统性速率变化的影响。在第二个项目中，声音记录将被提交给感知分析，以确定听者在识别音节类型时使用发音和声学的哪些方面。通过这种方式，音节结构的知觉关联也将被获得。本文提出的研究将对基本音节类型的时间结构提供明确的刻画，并为确定语音中产生音节结构的一般因素和认知因素提供基础。因此，这一项目的发现将对言语产生、言语失用、语言习得和语言学的研究进展具有重要意义。

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.