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Native phonological processing abilities predict post-consolidation nonnative contrast learning in adults.

F Sayako Earle1, Dana T Arthur2

  • 1Communication Sciences and Disorders, University of Delaware, STAR Health Sciences Complex, 540 South College Avenue, Suite 210BB, Newark, Delaware 19716, USA.

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Native phonological processing ability did not predict learning of new speech sounds initially. However, after sleep, skills like blending and nonword repetition predicted better discrimination and identification of the nonnative sounds.

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Area of Science:

  • Linguistics
  • Cognitive Science
  • Speech Perception

Background:

  • Adults often struggle to learn new speech sounds not present in their native language.
  • Native phonological processing abilities may influence the acquisition of nonnative speech contrasts.

Purpose of the Study:

  • To investigate the relationship between native phonological processing skills and the learning of a Hindi dental-retroflex contrast (/ɖ/ vs. /d̪/).
  • To determine if these abilities predict learning immediately after training and after a period of sleep.

Main Methods:

  • Participants underwent perceptual training on the Hindi contrast, with assessments in the evening and the following morning.
  • Native phonological processing abilities, including Blending and Nonword Repetition, were assessed.

Main Results:

  • Native phonological processing ability did not predict initial learning of the nonnative contrast.
  • Post-sleep, Blending ability predicted improved nonnative Discrimination.
  • Nonword Repetition ability predicted improved nonnative Identification.

Conclusions:

  • Native phonological processing abilities do not predict immediate nonnative speech sound learning.
  • Sleep plays a crucial role in consolidating nonnative speech sound learning.
  • Similar cognitive processes may underlie native phonological representation maintenance and nonnative acoustic-phonetic feature retention in adults.