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Phonological acquisition in preterm infants

M. Peña, E. Pittaluga, C. Farkas [REV NEUROL 2010;50:12-18] PMID: 20073018 DOI: https://doi.org/10.33588/rn.5001.2009202

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Volumen 50 | Number 01 | Nº of views of the article 5.510 | Nº of PDF downloads 2.428 | Article publication date 01/01/2010

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ABSTRACT

INTRODUCTION The stock of phonemes used in the mother tongue is mostly acquired towards the end of the first year of life. Systematic exposure to speech begins, maintains and enhances the learning of native phonemes and lowers sensitivity to non-native ones. Speech deprival gives rise to serious problems in the infant’s phonological development, yet little is known about the effects that premature exposure to speech can have on this learning. This study explores this issue by comparing the phonological discrimination of full-term and preterm infants at 12 months of age (corrected age in the preterm infants).

SUBJECTS AND METHODS An analysis was performed to evaluate a sample of 24 preterm babies and two cohorts of full-term infants (26 and 27 children, respectively), all of whom were healthy. Phonological discrimination was assessed using the event-related evoked potentials technique.

RESULTS Full-term and preterm infants achieve the same level of phonological discrimination at the age of 12 months (corrected age in the preterm infants). But it is suggested that preterm infants need to use more memory resources than those required by full-term children.

CONCLUSIONS The phonological acquisition evaluated at one year of age offers similar levels of performance in both full-term and preterm infants. KeywordsEvoked potentials Foreign phonemes Native phonemes Phonological acquisition Plasticity Preterm CategoriesNeuropediatría Técnicas exploratorias

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Phonological acquisition in preterm infants

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