title: Component processes subserving rapid automatized naming in dyslexic and non-dyslexic readers.
abstract: The current study investigated which time components of rapid automatized naming (RAN) predict group differences between dyslexic and non-dyslexic readers (matched for age and reading level), and how these components relate to different reading measures. Subjects performed two RAN tasks (letters and objects), and data were analyzed through a response time analysis. Our results demonstrated that impaired RAN performance in dyslexic readers mainly stem from enhanced inter-item pause times and not from difficulties at the level of post-access motor production (expressed as articulation rates). Moreover, inter-item pause times account for a significant proportion of variance in reading ability in addition to the effect of phonological awareness in the dyslexic group. This suggests that non-phonological factors may lie at the root of the association between RAN inter-item pauses and reading ability. In normal readers, RAN performance was associated with reading ability only at early ages (i.e. in the reading-matched controls), and again it was the RAN inter-item pause times that explain the association.
authors.affiliation: Cognitive Neuroscience Research Group, Institute for Biotechnology and Bioengineering, Centre for Molecular and Structural Biomedicine, University of Algarve, Faro, Portugal.
authors.forename: Susana
authors.initials: S
authors.lastname: Araújo
authors.forename: Filomena
authors.initials: F
authors.lastname: Inácio
authors.forename: Ana
authors.initials: A
authors.lastname: Francisco
authors.forename: Luís
authors.initials: L
authors.lastname: Faísca
authors.forename: Karl Magnus
authors.initials: KM
authors.lastname: Petersson
authors.forename: Alexandra
authors.initials: A
authors.lastname: Reis
mesh_terms: D001364:Awareness; D002648:Child; D004410:Dyslexia / Q000175:diagnosis* / Q000503:physiopathology*; D005260:Female; D006801:Humans; D007807:Language Tests; D008297:Male; D009275:Names; D009483:Neuropsychological Tests; D010700:Phonetics; D011930:Reaction Time / Q000502:physiology*; D011932:Reading; D012044:Regression Analysis