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Selection for Action: Interference Effects on the Articulation of Speech Sounds

行动选择：对语音清晰度的干扰效应

基本信息

批准号：
BB/E003419/1
负责人：
Kathleen Rastle
金额：
$ 36.9万
依托单位：
Royal Holloway University of London
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2007
资助国家：
英国
起止时间：
2007 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=BB%2FE003419%2F1
关键词：
Selection Action Interference Effects Articulation

项目摘要

Speech production is one of the most fundamental of human abilities and its breakdown can have devastating consequences for individuals. Despite this, there is no comprehensive theory of the cognitive and articulatory processes involved in normal speech production or of the diverse ways in which these processes may be impaired through abnormal development or brain injury. One difficulty in formulating such a theory is that the two broad levels of processing underlying speech production have typically been treated within two distinct disciplines. On one side, cognitive psychologists have used one set of methods to study the processes through which we compute an abstract code for the sounds that we intend to produce. On the other side, phoneticians have used another set of methods to study how we translate this abstract code into the articulatory movements that produce an acoustic signal. Our research project brings these disciplines together in pursuit of a more complete theory of speech production than has so far been developed. The specific aim of our research project is to determine how information flows across these two broad levels of processing in speech production. Speech production researchers have generally made an assumption that the relationship between these levels of processing is 'staged'. Essentially, this means that they have assumed that an abstract code for sound must be computed fully before the motor system can begin to compute the programs associated with appropriate articulatory movement. The view that these two broad levels of processing are accomplished in discrete stages has allowed researchers to them as largely separate problems. However, this fundamental assumption about how the speech production system operates has never been tested in a concentrated manner, and in fact has been challenged by recent findings. Our research will test this core assumption thoroughly, in a series of several experiments that use an innovative interdisciplinary method recently developed in our laboratory. This method quantifies highly-specific influences of ignored distractor syllables (e.g., KEY) on the articulation of target syllables (e.g., CORE) using fine-grained articulatory and acoustic techniques imported from experimental phonetics. Our research will ask whether, and under which experimental circumstances, visual and auditory distractor syllables leave systematic 'traces' of themselves on the otherwise accurate production of target syllables. Such traces would indicate that motor programs are computed automatically for the ignored distractor syllables, and compete with the motor programs associated with the articulation of target syllables. These findings would challenge the staged model of speech production assumed by most researchers in the field, since on that model information about distractors not selected for production cannot be passed to the motor systems involved in articulation. The findings of this research project may therefore have major theoretical implications for our understanding of the processes underlying speech production. It is also expected that the innovative method advanced in this project will advance the range of tools available for the scientific study of normal and impaired speech production.

言语产生是人类最基本的能力之一，它的崩溃可能会对个人造成毁灭性的后果。尽管如此，还没有关于正常言语产生所涉及的认知和发音过程的全面理论，也没有关于这些过程可能通过异常发育或脑损伤而受到损害的各种方式的全面理论。形成这样一个理论的一个困难是，通常在两个不同的学科中处理潜在的语音产生的两个大致水平。一方面，认知心理学家使用了一套方法来研究我们计算我们想要产生的声音的抽象代码的过程。另一方面，语音学家使用了另一套方法来研究我们如何将这种抽象的代码翻译成产生声音信号的发音动作。我们的研究项目将这些学科结合在一起，追求比迄今所开发的更完整的言语产生理论。我们研究项目的具体目的是确定信息如何在语音产生的这两个广泛的处理水平上流动。言语产生研究人员通常假设这些加工水平之间的关系是“阶段性的”。从本质上讲，这意味着他们假设，在运动系统开始计算与适当发音运动相关的程序之前，声音的抽象代码必须被完全计算出来。这两个大致水平的加工是在不同的阶段完成的，这一观点使研究人员能够将它们作为基本上独立的问题来处理。然而，这一关于语音产生系统如何运作的基本假设从未被集中测试过，事实上，最近的发现对此提出了挑战。我们的研究将在一系列实验中彻底测试这一核心假设，这些实验使用了我们实验室最近开发的一种创新的跨学科方法。该方法使用从实验语音学引入的细粒度发音和声学技术来量化被忽略的干扰音节(例如，键)对目标音节(例如，核心)的发音的高度特异性影响。我们的研究将询问视觉和听觉分心音节是否以及在哪些实验环境下，在目标音节的其他准确产生上留下系统的‘痕迹’。这样的痕迹将表明，运动程序是为被忽略的分心音节自动计算的，并与与目标音节的发音相关的运动程序竞争。这些发现将挑战该领域大多数研究人员假设的言语产生的阶段性模型，因为在该模型上，有关未被选择用于产生的分心物的信息无法传递到涉及发音的运动系统。因此，这一研究项目的发现可能对我们理解言语产生的过程具有重要的理论意义。预计该项目中提出的创新方法将促进可用于正常和受损言语产生的科学研究的工具的范围。

项目成果

期刊论文数量（1）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Activation of articulatory information in speech perception.

言语感知中发音信息的激活。

DOI：
10.1073/pnas.0904774107
发表时间：
2010
期刊：
Proceedings of the National Academy of Sciences of the United States of America
影响因子：
11.1
作者：
Yuen I
通讯作者：
Yuen I