Varieties of developmental dyslexia in Greek children

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    Abstract

    The current study aimed to investigate in a group of nine Greek children with dyslexia (mean age 9.9 years) whether the surface and phonological dyslexia subtypes could be identified. A simple regression was conducted using printed word naming latencies and nonword reading accuracy for 33 typically developing readers. Ninety per cent confidence intervals were established and dyslexic children with datapoints lying outside the confidence intervals were identified. Using this regression-based method three children with the characteristic of phonological dyslexia (poor nonword reading), two with surface dyslexia (slow word naming latencies) and four with a mixed profile (poor nonword reading accuracy and slow word naming latencies) were identified. The children were also assessed in spelling to dictation, phonological ability, rapid naming, visual memory and multi-character processing (letter report). Results revealed that the phonological dyslexia subtype children had difficulties in tasks of phonological ability, and the surface subtype children had difficulties in tasks of multi-character simultaneous processing ability. Dyslexic children with a mixed profile showed deficits in both phonological abilities and multi-character processing. In addition, one child with a mixed profile showed a rapid naming deficit and another showed a difficulty in visual memory for abstract designs. Overall the results confirm that the surface and phonological subtypes of developmental dyslexia can be found in Greek-speaking children. They also indicate that different subtypes are associated with different underlying disorders. Publisher statement: “This is an Accepted Manuscript of an article published by Taylor & Francis in Writing Systems Research on 12 March 2014, available online: http://wwww.tandfonline.com/10.1080/17586801.2014.893862"
    Original languageEnglish
    Pages (from-to)230-256
    JournalWriting Systems Research
    Volume6
    Issue number2
    DOIs
    Publication statusPublished - 2014

    Bibliographical note

    “This is an Accepted Manuscript of an article published by Taylor & Francis in Writing Systems Research on 12 March 2014, available online: http://wwww.tandfonline.com/10.1080/17586801.2014.893862"

    Keywords

    • Greek dyslexic children
    • Subtypes
    • Phonological ability
    • Multi-character simultaneous processing

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