Internal structure of phonetic representations: Non-linear analyses of error data from patients with apraxia of speech.

语音表征的内部结构：言语失用症患者的错误数据的非线性分析。

• 批准号: 25105691
• 负责人: Professor Dr. Wolfram Ziegler
• 金额: --
• 依托单位: Institut für Phonetik und Sprachverarbeitung
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/25105691?language=en
• 关键词: Internal; structure; phonetic; representations; Non

This proposal is aimed at disclosing the internal structure of phonetic plans or speech motor programs. According to a theory developed by Levelt, Roelofs & Meyer (1999), the input to the motor execution component of speech production consists of linear strings of holistic, syllable-sized programs, but there is only little empirical support to this hypothesis. In our project we pursue a neurolinguistic approach which is based on the assumption that the representations of the phonetic encoding component of speech production are corrupted by a clinical condition termed apraxia of speech. Since the occurrence of apraxic speech errors is systematically influenced by the phonological / phonetic make-up of words, a word¿s sensitivity to apraxic failure can be assumed to mirror the complexity of its underlying phonetic representation. In our approach we estimate error-probabilities for a representative sample of words with different phonological structures and model these data by variables describing the formal properties of the target words. Estimates of error probabilities will be obtained from the speech samples of a large population of apraxic speakers, and a novel method will be used to predict these data by a non-linear metrical model of phonological form. The shape of the resulting model can be interpreted to reflect the internal structure of phonetic representations. The specificity of this result for the phonetic encoding stage will be demonstrated by inclusion of a control sample of patients with phonological impairments. The speech samples and perceptual data collected in this project will be made accessible, in a large database, to other researchers in this field.

该提案旨在披露S＆Meyer（1999）的言语计划或言语运动计划。假设的假设。 s对镜像的敏感性。通过非线性度量模型的语音模型。在该领域的其他研究人员中，可以使语音障碍的控制样本可访问。