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The interaction of segmental and prosodic structure in speech production: A comparison of syndromes and an investigation of auditory rhythmical priming effects.

言语产生中片段和韵律结构的相互作用：综合征的比较和听觉节奏启动效应的研究。

基本信息

批准号：
173836655
负责人：
Professorin Dr. Simone Falk
金额：
--
依托单位：
Faculté des arts et des sciences
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2010
资助国家：
德国
起止时间：
2009-12-31 至 2018-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/173836655?language=en
关键词：
interaction segmental prosodic structure speech

项目摘要

During the first research period of this project we were able to demonstrate a robust effect of rhythm and meter on speech accuracy in word and phrase repetition in apraxic speakers, in the sense that patients made fewer errors on utterances with a regular trochaic rhythm as compared to iambic words or to phrases with irregular stress patterns. These results are in accordance with predictions from an earlier nonlinear model according to which the segmental and the metrical properties of speech motor plans are hierarchically nested. Our results entail two important questions to be answered in an extension of the current project.(1) Is the advantage of regular speech rhythm confined to impairments at the motor planning stage of speech production (i.e., apraxia of speech), or does it also apply to phonological encoding impairments (lexical, post-lexical) or to impairments of speech motor execution (dysarthria). The presence of a uniform metrical influence on speech across several speech output components would be theoretically most revealing. Any disparity between components, on the other hand, might have implications for the differential diagnosis of speech impairments.(2) Do patients with phonological, phonetic, or dysarthric impairment profit, in their speech production, from auditory priming by speech with a regular intrinsic rhythm? This research question interlinks the motor with the sensory domain and hooks up with theories according to which speech motor planning and coordination results from a rhythmical entrainment of articulatory gestures. We are planning for two studies. In study 1, the word repetition paradigm used during the first research period will be expanded by a naming paradigm, in order to systematically investigate the influence of word stress on picture naming in aphasic patients with lexical (post-semantic) impairment. In study 2 we will use a new auditory-motor coupling paradigm which requires participants to complete a phrase spoken by a model speaker by maintaining the rhythm and fluency of the auditory model. This approach is based on an adaptation of speech synchronization and turn taking experiments. It will allow us to distinguish between auditory and motor influences on segmental and rhythmical aspects of spoken language production. We plan to examine speakers with phonological impairment, apraxia of speech, and (Parkinsons) dysarthria, thereby complementing our cross-syndrome comparisons. By using a paradigm related to the synchronization approach we also build a bridge to well established, rhythm based treatment methods from other motor domains.

在这个项目的第一个研究期间，我们能够证明节奏和韵律对无重音说话者的单词和短语重复的语音准确性的强大影响，从这个意义上说，患者在与抑扬格词或不规则重音模式的短语相比，具有规则抑扬格节奏的话语中犯的错误较少。这些结果是根据从早期的非线性模型，根据该模型的分段和测量性能的语音运动计划是分层嵌套的预测。我们的研究结果需要回答两个重要的问题，在当前项目的扩展。(1)有规律的言语节奏的优点是否局限于言语产生的运动规划阶段的障碍（即，言语失用症），或者它也适用于语音编码障碍（词汇，词汇后）或言语运动执行障碍（构音障碍）。在几个语音输出分量上对语音的均匀度量影响的存在在理论上是最具启发性的。另一方面，组件之间的任何差异都可能对言语障碍的鉴别诊断产生影响。(2)语音、语音或构音障碍患者的言语产生是否受益于具有规则内在节奏的言语的听觉启动？这个研究问题将运动与感觉领域联系起来，并与理论挂钩，根据该理论，言语运动规划和协调来自发音手势的有节奏的夹带。我们计划进行两项研究。研究一将在第一个研究阶段使用的词汇重复范式的基础上扩展为命名范式，系统考察词汇（语义后）损伤失语症患者的词汇重音对图片命名的影响。在研究2中，我们将使用一种新的听觉-运动耦合范式，该范式要求参与者通过保持听觉模型的节奏和流畅性来完成模型说话者所说的短语。这种方法是基于适应语音同步和轮流实验。它将使我们能够区分听觉和运动对口语产生的分段和节奏方面的影响。我们计划检查语音障碍，言语失用症和（帕金森氏症）构音障碍的发言者，从而补充我们的交叉综合征比较。通过使用与同步方法相关的范例，我们还建立了一个桥梁，从其他运动领域建立良好的，基于节奏的治疗方法。