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Related Experiment Videos

Specific language impairment in children: a cross-linguistic study.

L B Leonard1, L Sabbadini, J S Leonard

  • 1Purdue University, Lafayette, IN 47907.

Brain and Language
|November 1, 1987
PubMed
Summary

Children with specific language impairment often struggle with grammar. This study found phonological factors and rule opacity, not just grammar, significantly impact language development in these children.

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Area of Science:

  • Linguistics
  • Developmental Psychology
  • Speech-Language Pathology

Background:

  • Specific language impairment (SLI) in English-speaking children often presents with broad linguistic deficits, particularly in morphology and verb systems.
  • Understanding the underlying causes of severe SLI is crucial for effective intervention.

Purpose of the Study:

  • To investigate the nature of severe language deficits in children with SLI.
  • To compare language features in Italian-speaking and English-speaking children with SLI.
  • To identify factors contributing to specific linguistic challenges.

Main Methods:

  • Analysis of speech samples from monolingual Italian-speaking and English-speaking children diagnosed with specific language impairment.
  • Examination of linguistic features, focusing on bound morphemes and verb system components.

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Main Results:

  • Phonological factors were found to significantly contribute to difficulties with specific linguistic features in children with SLI.
  • Marked deficits were associated with the opacity of linguistic rules and homonymity, rather than solely with formal grammatical devices or the verb system.
  • Cross-linguistic comparison provided insights into universal and language-specific aspects of SLI.

Conclusions:

  • Phonological influences and rule complexity play a significant role in the language impairments observed in children with SLI.
  • The findings challenge the notion that deficits are exclusively tied to formal grammatical structures, highlighting the impact of rule opacity and homonymity.
  • Further research is needed to explore the interplay of phonology, morphology, and syntax in SLI across different languages.