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Verb use by individuals with Down syndrome

L J Hesketh1, R S Chapman

  • 1Waisman Center, University of Wisconsin-Madison, 53705-2280, USA. Hesketh@waisman.wisc.edu

American Journal of Mental Retardation : AJMR
|December 2, 1998
PubMed
Summary

Individuals with Down syndrome (DS) produce fewer verbs in sentences, impacting syntax. This verb access difficulty may stem from auditory short-term memory deficits, suggesting a key area for intervention in DS language development.

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Area of Science:

  • Linguistics
  • Developmental Psychology
  • Genetics

Background:

  • Syntactic development is crucial for language acquisition.
  • Verbs play a central role in sentence construction.
  • Individuals with Down syndrome (DS) often exhibit syntactic deficits.

Purpose of the Study:

  • To examine verb production in narratives of individuals with DS.
  • To compare verb usage between individuals with DS and typically developing controls.
  • To investigate the relationship between verb access and syntactic development theories.

Main Methods:

  • Narrative samples were collected from 29 individuals with DS and 29 controls.
  • Participants were matched on linguistic level (Brown's Stages 3-5).
  • Production of grammatical and lexical verbs per utterance was analyzed.

Main Results:

  • Individuals with DS produced fewer lexical and grammatical verbs per utterance than controls.
  • Individuals with DS demonstrated a greater diversity of lexical verb use.
  • Findings align with the child talk model regarding verb importance.

Conclusions:

  • Syntactic deficits in DS may be linked to challenges in accessing verbs during utterance formulation.
  • Auditory short-term memory deficits could underlie difficulties in verb retrieval for individuals with DS.
  • Targeting verb access and auditory memory may support syntactic development in DS.

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