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Twin language or phonological disorder?

B Dodd1, S McEvoy

  • 1Department of Speech and Hearing, University of Queensland, Australia.

Journal of Child Language
|June 1, 1994
PubMed
Summary
This summary is machine-generated.

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Multiple-birth children often have unintelligible speech due to phonological disorders. While siblings show some speech similarities and better mutual understanding, research found no evidence of an autonomous "twin language".

Area of Science:

  • Child language acquisition
  • Developmental linguistics
  • Speech-language pathology

Background:

  • Preschool-aged multiple-birth children's language acquisition is frequently considered atypical.
  • Some researchers propose the existence of 'twin language,' an autonomous system unique to multiple-birth siblings.
  • This study investigates the validity of the 'twin language' hypothesis.

Purpose of the Study:

  • To analyze and compare the phonological features of speech in young multiple-birth children.
  • To assess multiple-birth children's comprehension of their siblings' context-free speech.
  • To determine if findings support the existence of an autonomous 'twin language.'

Main Methods:

  • Phonological analysis of speech from 19 sets of multiple-birth children (ages 2-4).

Related Experiment Videos

  • Comprehension tests measuring understanding of siblings' context-free speech.
  • Comparison of phonological similarities and intelligibility among siblings.

    • Main Results:

    • Multiple-birth children exhibit a higher prevalence of phonological disorders, leading to unintelligible speech.
    • Sibling phonologies displayed similarities but were not identical.
    • Multiple-birth children demonstrated enhanced understanding of siblings' speech errors compared to peers, contingent on error resemblance to adult forms.

    Conclusions:

    • Phonological disorder and enhanced sibling comprehension contribute to the perception of 'twin language.'
    • Despite observed similarities and mutual intelligibility, no evidence supports the existence of an autonomous 'twin language.'
    • Findings highlight phonological challenges in multiple-birth children rather than a unique linguistic system.