title: Peripheral and central contribution to the difficulty of speech in noise perception in dyslexic children.
abstract: Noise typically induces both peripheral and central masking of an auditory target. Whereas the idea that a deficit of speech in noise perception is inherent to dyslexia is still debated, most studies have actually focused on the peripheral contribution to the dyslexics' difficulties of perceiving speech in noise. Here, we investigated the respective contribution of both peripheral and central noise in three groups of children: dyslexic, chronological age matched controls (CA), and reading-level matched controls (RL). In all noise conditions, dyslexics displayed significantly lower performance than CA controls. However, they performed similarly or even better than RL controls. Scrutinizing individual profiles failed to reveal a strong consistency in the speech perception difficulties experienced across all noise conditions, or across noise conditions and reading-related performances. Taken together, our results thus suggest that both peripheral and central interference contribute to the poorer speech in noise perception of dyslexic children, but that this difficulty is not a core deficit inherent to dyslexia.
authors.affiliation: Fonds de la Recherche Scientifique - FNRS (FRS-FNRS), France.|Unité de Recherche en Neurosciences Cognitives (UNESCOG), Center for Research in Cognition & Neurosciences (CRCN), Université Libre de Bruxelles (ULB), Brussels, Belgium.|Laboratoire de Neurophysiologie Sensorielle et Cognitive, Hôpital Brugmann, Brussels, Belgium.
authors.forename: Axelle
authors.initials: A
authors.lastname: Calcus
authors.affiliation: Laboratoire de Neurophysiologie Sensorielle et Cognitive, Hôpital Brugmann, Brussels, Belgium.
authors.forename: Paul
authors.initials: P
authors.lastname: Deltenre
authors.affiliation: Unité de Recherche en Neurosciences Cognitives (UNESCOG), Center for Research in Cognition & Neurosciences (CRCN), Université Libre de Bruxelles (ULB), Brussels, Belgium.|Laboratoire de Neurophysiologie Sensorielle et Cognitive, Hôpital Brugmann, Brussels, Belgium.
authors.forename: Cécile
authors.initials: C
authors.lastname: Colin
authors.affiliation: Fonds de la Recherche Scientifique - FNRS (FRS-FNRS), France.|Unité de Recherche en Neurosciences Cognitives (UNESCOG), Center for Research in Cognition & Neurosciences (CRCN), Université Libre de Bruxelles (ULB), Brussels, Belgium.
authors.forename: Régine
authors.initials: R
authors.lastname: Kolinsky
mesh_terms: D002648:Child; D004410:Dyslexia / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D009622:Noise; D010470:Perceptual Masking / Q000502:physiology*; D010700:Phonetics; D011932:Reading; D013060:Speech / Q000502:physiology; D013067:Speech Perception / Q000502:physiology*