Discrimination of speech sounds by children with dyslexia: Comparisons with chronological age and reading level controls
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6 mai 2008
- handle: 10670/1.wb2de0
- halshs: halshs-00468930
- doi: 10.1016/j.jecp.2008.03.006
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info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jecp.2008.03.006
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Mots-clés
Dyslexia Categorical perception Speech development Allophonic perception Dyslexie Perception catégorielle développement de la parole perception allophoniqueSujets proches
Supraliminal perceptionCiter ce document
Caroline Bogliotti et al., « Discrimination of speech sounds by children with dyslexia: Comparisons with chronological age and reading level controls », HAL-SHS : linguistique, ID : 10.1016/j.jecp.2008.03.006
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Résumé
Previous studies have shown that children suffering from develop- mental dyslexia have a deficit in categorical perception of speech sounds. The aim of the current study was to better understand the nature of this categorical perception deficit. In this study, cat- egorical perception skills of children with dyslexia were compared with those of chronological age and reading level controls. Children identified and discriminated /do–to/ syllables along a voice onset time (VOT) continuum. Results showed that children with dyslexia discriminated among phonemically contrastive pairs less accu- rately than did chronological age and reading level controls and also showed higher sensitivity in the discrimination of allophonic contrasts. These results suggest that children with dyslexia per- ceive speech with allophonic units rather than phonemic units. The origin of allophonic perception in the course of perceptual development and its implication for reading acquisition are discussed.