Comparing SLI and dyslexia: developmental language profiles and reading outcomes
In light of the striking overlap in symptoms, it has been proposed that SLI anddyslexia reflect the same underlying disorder, differing only in severity. Analternative view is that SLI and dyslexia overlap (only) partially, sharing somerisk factors, and differing on various others. We will address this debate by presentingresults from a longitudinal study of children at familial risk of dyslexiaand children with SLI. We focus on two experimental tasks conducted with preschoolchildren, assessing morphosyntactic ability and phonological processing.The performances of each group were compared and related to language andliteracy profiles established at age 8. The results agree most with the hypothesisthat SLI and dyslexia share risk factors, but are not fully overlapping.