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How does reading performance modulate the impact of orthographic knowledge on speech processing?: A comparison of normal readers and dyslexic adults.

par Pattamadilok, Chotiga ;Nelis, Aubéline;Kolinsky, Régine
Référence Annals of dyslexia, 64, 1, page (57-76)
Publication Publié, 2014

Article révisé par les pairs

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Résumé :

Studies on proficient readers showed that speech processing is affected by knowledge of the orthographic code. Yet, the automaticity of the orthographic influence depends on task demand. Here, we addressed this automaticity issue in normal and dyslexic adult readers by comparing the orthographic effects obtained in two speech processing tasks that are or not sensitive to strategies developed by participants. Our finding showed that while participants' performance in a metaphonological task, which is known to be strategy prone, was affected by their orthographic knowledge regardless of the childhood diagnosis of dyslexia or of their actual reading-related skills, this latter factor significantly modulated the orthographic influence found in a more natural speech recognition task. The finding supports the claim that while any individuals who know a reading code are able to resort to their orthographic knowledge when they process speech, a more profound modification of the speech processing system by the orthographic code takes place only in readers who have reached a certain level of reading expertise. © 2013 The International Dyslexia Association.