New insights on developmental dyslexia subtypes: heterogeneity of mixed reading profiles.

ABSTRACT: We examined whether classifications based on reading performance are relevant to identify cognitively homogeneous subgroups of dyslexic children. Each of the 71 dyslexic participants was selected to have a mixed reading profile, i.e. poor irregular word and pseudo-word reading performance (accuracy and speed). Despite their homogeneous reading profile, the participants were found to split into four distinct cognitive subgroups, characterized by a single phonological disorder, a single visual attention span disorder, a double deficit or none of these disorders. The two subgroups characterized by single and contrasted cognitive disorders were found to exhibit a very similar reading pattern but more contrasted spelling performance (quantitative analysis). A qualitative analysis of the error t

SUBMITTER: Zoubrinetzky R 

PROVIDER: S-EPMC4053380 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature