title: Morphological cues in the comprehension of relative clauses by Greek children with specific language impairment and typical development: A comparative study.
abstract: OBJECTIVE
  This study investigated the effect of morphological case and number marking on the comprehension of relative clauses by Greek children with Specific Language Impairment and Language Age controls.
  
  
  METHODS
  An agent selection task and experimental materials consisting of 12 subject and 12 object relative clauses were employed. There were two experimental conditions: The first one manipulated number marking for Noun Phrases and the verb (singular vs plural) and neutralised Case through the use of Noun Phrases with neuter gender, which in Greek is ambiguous between Nominative and Accusative. The second one manipulated case and included Noun Phrases marked for morphological case.
  
  
  RESULTS
  The Language Age controls performed better on the comprehension of object relative clauses with case manipulation than on those with number, unlike the children with Specific Language Impairment, who performed at the same level on the comprehension of relative clauses with number and case manipulation.
  
  
  CONCLUSIONS
  The children with Specific Language Impairment did not make efficient use of the morphological case cues in object relative clause interpretation. We argue that deficient use of case cues in object relative clause interpretation is due to difficulties in rapid interpretation of case information in these demanding structures.
authors.affiliation: a Aristotle University of Thessaloniki , Thessaloniki , Greece.
authors.forename: Stavroula
authors.initials: S
authors.lastname: Stavrakaki
authors.affiliation: b University of Thessaly , Volos , Greece.
authors.forename: Matina
authors.initials: M
authors.lastname: Tasioudi
authors.affiliation: c University of Milano-Bicocca, Psychology , Milano , Italy.
authors.forename: Teresa
authors.initials: T
authors.lastname: Guasti
keywords: Specific Language Impairment (SLI); morphology; syntax