We administrated a clitic elicitation task to 16 school-aged Italian speaking children with specific language impairment (SLI) in order to investigated whether the failure to produce third person direct object clitics (DO clitics) is a persistent clinical marker of SLI in Italian; we examined whether this failure also extends to reflexive clitics. Results show that Italian children with SLI aged 6 to 9;11 years fail to produce DO clitics and tend to produce a lexical noun introduced by a determiner (full DP) in the argument postverbal position instead of the pronoun; the production of reflexive clitics is preserved in the same population. Receiver operating characteristic curve analyses and computation of likelihood ratios show that the failure to produce DO clitics is a persistent good clinical marker of SLI in Italian. We argue that DO clitic production requires complex morphosyntactic operations that are hardly achieved by children with SLI; our findings are compatible with theories considering SLI as a deficit of processing complex linguistic relations.
The study investigated morphosyntactic abilities and semantic-pragmatic competence in 24 children with developmental dyslexia aged 7 -12 years. Morphosyntactic abilities were investgated in a direct object clitic production task, semantic-pragmatic competence in a quantifier comprehension task. Children with dyslexia produced fewer clitics than their age controls and vocabulary controls. Ten children with dyslexia scored less than 1.5 SD below the mean score of an additional group of 89 children of the same age, selected across a range of oral and reading abilities. No difference was found in quantifier comprehension. These findings suggest that a large number of children with dyslexia are likely to be affected by SLI, although not diagnosed, and the authors recommend language assessment, including assessment of clitic production, when children are referred for dyslexia. By capitalizing on theories that see SLI as a deficit in the processing of complex aspects of linguistic relations, the authors argue that the production of clitics is particularly challenging because of their syntactic and morphosyntactic complexity.
While language skills are generally not assessed in children with Developmental Dyslexia (DD), it is known that 50% of them manifests some of the symptoms that we find in children with Specific Language Impairment (SLI). This is confirmed in this study for Italian: 50% of the children with DD scores 1.5 SD below the mean of their peers with typical development in the production of relative clauses and wh-questions. Thus, some children with DD fail in those tasks in which also children with SLI fail. These findings point to the need of language assessment when children with DD are referred for reading problems
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