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Original Articles

Characterizing the Overlap Between SLI and Dyslexia in Chinese: The Role of Phonology and Beyond

, , &
Pages 30-57 | Received 15 Jan 2009, Accepted 29 Jun 2009, Published online: 22 Jan 2010
 

Abstract

This study examined the overlap of dyslexia and specific language impairment (SLI) in Cantonese-Chinese-speaking children. Thirty children with a prior diagnosis of SLI and 9 normal controls, aged between 6;0 and 11;3, participated. The children with SLI were tested for language impairment and dyslexia. Seven retained a diagnosis of SLI but were dyslexia-free (SLI-only), 13 received a comorbid diagnosis of dyslexia (SLI-D), and SLI had become history (SLI-H) in the other 10 children with no co-morbid diagnoses of dyslexia. The SLI-only group did worse on textual comprehension, but better on left-right reversal (an orthographic skill), than the SLI-D group. The SLI-only and the SLI-D group shared the same range of cognitive deficits relative to age norms and showed no difference in phonological processing. The SLI-D group did worse than the normal group on phonological representation, and both the SLI-only and the SLI-D group had difficulties with morphological awareness.

Notes

1Cantonese morphemes are presented in romanized forms following the scheme adopted by the CitationLinguistic Society of Hong Kong (1994). Numerals following the syllables represent one of the six lexical tones in the language.

aSignificant also in the analysis involving three groups, SLI-only, SLI-D and SLI-H.

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