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Carina Rebello Cruz1, Ingrid Finger2

  • 1Universidade Federal do Rio Grande do Sul/CNPq - Porto Alegre - Rio Grande do Sul - Brasil, Universidade Federal de Santa Catarina - Florianópolis - Santa Catariana - Brasil.

Letras De Hoje
|December 16, 2014
PubMed
Summary

Early access to Brazilian Sign Language (Libras) supports typical phonological acquisition in hearing and deaf children using cochlear implants (CI). Unrestricted Libras exposure appears crucial for developing Brazilian Portuguese (BP) oral language skills.

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Area of Science:

  • Linguistics
  • Speech-Language Pathology
  • Developmental Psychology

Background:

  • Phonological acquisition in bilingual children is complex.
  • The role of sign language exposure in spoken language development requires further investigation.
  • Cochlear implant (CI) use impacts auditory and speech processing in deaf children.

Purpose of the Study:

  • To investigate the phonological acquisition of Brazilian Portuguese (BP) in bimodal bilingual hearing children and deaf children using cochlear implants (CI).
  • To determine the influence of Brazilian Sign Language (Libras) access on BP phonological development.
  • To compare phonological acquisition patterns between hearing and deaf children with varying degrees of Libras exposure.

Main Methods:

  • Assessed phonological systems of 24 hearing and 6 deaf children using the Naming Task (Part A) of the ABFW - Children Language Test.
  • Documented access to Brazilian Sign Language (Libras) for all participants.
  • Analyzed BP phonological acquisition in relation to age and Libras exposure.

Main Results:

  • Hearing children with unrestricted Libras access demonstrated age-expected BP phonological acquisition.
  • Deaf children using CI with full Libras access also exhibited normal phonological development for their age.
  • A correlation between early and unrestricted Libras acquisition and successful oral test performance was observed.

Conclusions:

  • Early and unrestricted access to Brazilian Sign Language (Libras) positively influences phonological acquisition of Brazilian Portuguese (BP).
  • Bimodal bilingualism, including Libras, supports spoken language development in both hearing and deaf children with CI.
  • Libras serves as a valuable linguistic foundation for oral language development in this population.

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