Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/99609
Author(s): fernandes, t
vale, ap
martins, b
morais, j
kolinsky, r
Title: The deficit of letter processing in developmental dyslexia: combining evidence from dyslexics, typical readers and illiterate adults
Issue Date: 2014
Abstract: To clarify the link between anomalous letter processing and developmental dyslexia, we examined the impact of surrounding contours on letter vs. pseudo-letter processing by three groups of children - phonological dyslexics and two controls, one matched for chronological age, the other for reading level - and three groups of adults differing by schooling and literacy - unschooled illiterates and ex-illiterates, and schooled literates. For pseudo-letters, all groups showed congruence effects (CE: better performance for targets surrounded by a congruent than by an incongruent shape). In contrast, for letters, only dyslexics exhibited a CE, strongly related to their phonological recoding abilities even after partialling out working memory, whereas the reverse held true for the pseudo-letter CE. In illiterate adults, the higher letter knowledge, the smaller their letter CE; their letter processing was immune (to some extent) to inference from surrounding information. The absence of a letter CE in illiterates and the positive CE in dyslexics have their origin in different aspects of the same ability, i.e. phonological recoding.
Subject: Psicologia
Psychology
Scientific areas: Ciências sociais::Psicologia
Social sciences::Psychology
URI: https://repositorio-aberto.up.pt/handle/10216/99609
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FPCEUP - Artigo em Revista Científica Internacional

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