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The relationship between stored phonological representations and speech output.

Mary Claessen1, Suze Leitão

  • 1School of Psychology and Speech Pathology, Curtin University of Technology, GPO Box U1987, Perth, WA 6845, Australia. m.claessen@curtin.edu.au

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Children with Specific Language Impairment (SLI) struggle with phonological representations. This study found SLI children performed poorly on judging word accuracy, suggesting distinct input and output processing challenges.

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Area of Science:

  • Linguistics
  • Developmental Psychology
  • Speech-Language Pathology

Background:

  • Specific Language Impairment (SLI) is often linked to deficits in phonological representations.
  • Understanding these deficits is crucial for effective language intervention.
  • Distinguishing between input and output processing is key.

Purpose of the Study:

  • To investigate phonological representation abilities in children with SLI.
  • To compare their performance on tasks assessing input and output phonological processing.
  • To determine if speech errors in SLI reflect underlying representational weaknesses.

Main Methods:

  • Compared 21 children with SLI, 21 age-matched (AM) peers, and 21 language-matched (LM) peers.
  • Utilized a silent word judgment task and a multisyllabic word naming task with identical word sets.
  • Assessed performance based on accuracy in judging and naming.

Main Results:

  • Children with SLI showed significantly lower accuracy on the silent judgment task compared to both AM and LM peers.
  • Performance on the word naming task aligned with typical developmental patterns.
  • No significant correlation was found between judging accuracy and naming ability.

Conclusions:

  • Results support the existence of separate input and output phonological representations.
  • Speech output errors in SLI may not always indicate underlying phonological representation deficits.
  • Tailored tasks are valuable for assessing specific word input phonological representations.