A gradient-based preference for sonority markedness constraints in reading: evidence for intact phonological grammar in developmental dyslexia - Laboratoire de Psychologie Sociale : contextes et régulation
Article Dans Une Revue (Data Paper) Applied Psycholinguistics Année : 2024

A gradient-based preference for sonority markedness constraints in reading: evidence for intact phonological grammar in developmental dyslexia

Résumé

How do children with developmental dyslexia process unattested or ill-formed phonological sequences in their native language? This question warrants attention because these children are primarily characterized by a phonological deficit. In this study, we support the hypothesis that intact phonological grammar allows segmenting and recognizing (pseudo)words through sensitivity to sonority markedness constraints. We administered a lexical decision task in silent reading to 21 French children with developmental dyslexia, comparing them with 21 chronological age-matched and 21 reading level-matched peers. Children were presented with words and pseudowords that either respected or transgressed syllable boundaries (⟨ar*gent⟩, money vs. ⟨a*rgent⟩ vs. ⟨arg*ent⟩). For pseudowords, we manipulated the sonority profiles of unattested intervocalic ⟨C1C2⟩ clusters from unmarked, well-formed (⟨rj⟩ in ⟨yrjyde⟩; high-fall) to marked, ill-formed clusters (⟨vl⟩ in ⟨uvlyde⟩; high-rise). Results confirmed preferences for syllable segmentation in words (⟨ar*gent⟩ is preferred to ⟨a*rgent⟩ or ⟨arg*ent⟩) regardless of distributional properties. We found a sonority projection effect that illustrated a gradient-based preference for sonority markedness constraints with pseudowords. However, pseudowords conforming to expected sonority-based segmentation (⟨yr*jyde⟩ or ⟨u*vlyde⟩) were more difficult to reject, possibly due to interferences from lexical attestedness. We discuss a phonological deficit that does not stem from degraded language-specific or universal phonological representations.
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hal-04826270 , version 1 (12-12-2024)

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Norbert Maïonchi-Pino, Élise Runge. A gradient-based preference for sonority markedness constraints in reading: evidence for intact phonological grammar in developmental dyslexia. Applied Psycholinguistics, 2024, pp.1-33. ⟨10.1017/S0142716424000353⟩. ⟨hal-04826270⟩
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