Mengisidou, M; (2020) Investigating the locus of the phonological deficit in Greek children with dyslexia and developmental language disorder: Degraded phonological representations or deficient phonological access? Hellenic Journal of Psychology , 17 (1) pp. 45-80.

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Abstract

The objective of the study was to investigate the locus of the phonological deficit in Greek children with dyslexia and Developmental Language Disorder (hereafter children with DDLD) by testing the Degraded Phonological Representations Hypothesis and the Deficient Phonological Access Hypothesis. Sixty-six children with DDLD aged 7-12 years and 63 typically developing (TD) children aged 7-12 years, all monolingual Greek speakers, were assessed with phoneme deletion, nonword repetition, rapid automatic naming, and spelling tasks, in addition to a range of language and reading tasks. The DDLD group performed significantly poorly on phoneme deletion tasks loading on phonological short-term memory capacity. Further, a qualitative analysis of spelling errors revealed that themajority of errors (96%)made by the DDLD group did not change the phonology of the spelled words, showing that mainly nonphonological difficulties account for poor spelling accuracy performance in Greek children with DDLD. The findings are consistent with the view that phonological representations of children with dyslexia and DLD are intact, but less accessible.

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