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ERIC Number: EJ1033128
Record Type: Journal
Publication Date: 2014-Jan
Pages: 17
Abstractor: As Provided
Reference Count: 75
ISBN: N/A
ISSN: ISSN-1363-755X
The Deficit of Letter Processing in Developmental Dyslexia: Combining Evidence from Dyslexics, Typical Readers and Illiterate Adults
Fernandes, Tânia; Vale, Ana P.; Martins, Bruno; Morais, José; Kolinsky, Régine
Developmental Science, v17 n1 p125-141 Jan 2014
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.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A