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Segmentation de la parole en mots et régularités phonotactiques : Effets phonologiques, probabilistes ou lexicaux ?

Abstract : It has been argued that speakers would be able to use their knowledge about phonotactic or syllabic regularities in the process of segmenting speech into words. However, a distributional analysis of the frequency of consonant clusters in a French computerised lexicon reveals a strong relationship between the phonological structure of consonant sequences and their frequency of occurrence in the language's words. On the average, tautosyllabic or phonotactically legal sequences are much more frequent than heterosyllabic or phonotactically illegal sequences. Three lexical segmentation models are discussed that could account for these effects without involving the influence of phonological regularities in speech segmentation processes. Experiments were conducted in order to test between the hypothesis of an involvement of phonological knowledge into lexical segmentation processes and these three alternate models. The data partly confirm the role of phonological constraints in the segmentation of speech into words. Nevertheless, they provide the basis to discuss issues of implementation level (pre-lexical vs. post-lexical) as well as the way prelexical and lexical informations should be integrated together. It is argued that these segmentation procedures would be performed according to general perceptual organisation principles that are not to be considered as language-specific. Indeed, prelexical segmentation processes would not influence lexical representations; both would be integrated at a later stage of processing.
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https://tel.archives-ouvertes.fr/tel-00425949
Contributor : Olivier Crouzet <>
Submitted on : Thursday, October 22, 2009 - 11:49:10 PM
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Olivier Crouzet. Segmentation de la parole en mots et régularités phonotactiques : Effets phonologiques, probabilistes ou lexicaux ?. Psychologie. Université René Descartes - Paris V, 2000. Français. ⟨tel-00425949⟩

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