What is it about?

The likelihood that a given word is pronounced accurately by speakers with apraxia of speech depends on a variety of strongly interacting phonological factors. The NLG model combines these factors, from the level of articulatory gestures to the level of metrical feet and phonological words, in a nonlinear way, to calculate estimates of articulatory complexity from a word's phonetic transcript. Clinical implications and applications of the model are described.

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Why is it important?

This approach is important in clinical linguistics and phonetics to understand the architecture of articulatory programs for words. The model is based on concepts developed in Articulatory Phonology and integrates word form parameters from the gestural across the syllabic to the prosodic level. From a more general perspective it describes the language-specific articulatory patterns a speaker acquires during speech motor learning.


We hope this article is stimulating for clinicians to gain a new perspective on the phonetic and phonological basis of neurological speech disorders.

Prof. Wolfram Ziegler
University of Munich

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This page is a summary of: The nonlinear gestural model of speech apraxia: clinical implications and applications, Aphasiology, March 2020, Taylor & Francis, DOI: 10.1080/02687038.2020.1727839.
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