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Ronice Müller de Quadros1, Carina Rebello Cruz2, Aline Lemos Pizzio1

  • 1Universidade Federal de Santa Catarina - UFSC.

Revista Virtual De Estudos Da Linguagem
|August 12, 2014
PubMed
Summary

Deaf children with cochlear implants benefit from access to Brazilian Sign Language (Libras), showing improved phonological memory performance. Early and consistent Libras exposure supports cognitive development in deaf children.

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Area of Science:

  • Linguistics
  • Audiology
  • Developmental Psychology

Background:

  • Bimodal bilingualism involves simultaneous use of sign and spoken language.
  • Deaf children's language and cognitive development are influenced by access to sign language.
  • Cochlear implants offer auditory input but language acquisition depends on multimodal input.

Purpose of the Study:

  • Compare phonological memory in hearing bimodal bilinguals and deaf cochlear-implant users with varying Brazilian Sign Language (Libras) access.
  • Investigate the impact of Libras exposure on cochlear-implant recipients' performance.
  • Evaluate the effectiveness of Libras in supporting cognitive skills in deaf children.

Main Methods:

  • Utilized two phonological memory tests: Português Pseudowords and Libras Pseudosigns.
  • Included groups of hearing bimodal bilingual children, deaf children with cochlear implants, deaf children with Libras access, and hearing bimodal bilingual adults (Codas).
  • Compared performance across groups with different levels of Libras and Portuguese exposure.

Main Results:

  • Bimodal bilingual children scored higher on both phonological memory tests.
  • Deaf children with cochlear implants and full Libras access performed similarly to hearing bimodal bilingual Codas.
  • Cochlear-implant users with restricted Libras access (more Portuguese exposure) showed lower scores, especially on the Portuguese test.

Conclusions:

  • Cochlear-implant recipients demonstrate significant benefits from access to Brazilian Sign Language (Libras).
  • Early and consistent Libras exposure can lead to comparable phonological memory performance to hearing bimodal bilinguals.
  • Multimodal language input, including sign language, is crucial for cognitive development in deaf children with cochlear implants.
Keywords:
Bimodal bilíngualismcochlear implantlanguage developmentphonological memory

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