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Related Experiment Video

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Creating Objects and Object Categories for Studying Perception and Perceptual Learning
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Perception and production in interaction during non-native speech category learning.

Jana Thorin1, Makiko Sadakata1, Peter Desain1

  • 1Donders Institute for Brain, Cognition and Behaviour, Centre for Cognition, Radboud University Nijmegen, Montessorilaan 3, 6500 HE Nijmegen, The Netherlands.

The Journal of the Acoustical Society of America
|August 5, 2018
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Summary

Learning new speech sounds is challenging. This study found that perceptual training significantly improved both speech perception and production of non-native vowel sounds, even without specific production practice.

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Area of Science:

  • Second Language Acquisition
  • Phonetics and Phonology
  • Speech Perception and Production

Background:

  • Acquiring non-native phonemes presents difficulties in both perceiving and producing them.
  • Understanding the interplay between speech perception and production during second language learning is crucial.

Purpose of the Study:

  • To investigate how perceptual learning and production practice interact in mastering a challenging non-native phoneme category.
  • To determine the effect of related vs. unrelated production practice on learning the British English /æ/-/ɛ/ vowel contrast.

Main Methods:

  • A four-day perceptual training protocol was implemented for the British English /æ/-/ɛ/ vowel contrast.
  • Participants (native Dutch speakers) received either related or unrelated production practice after perceptual categorization feedback.
  • Pre- and post-tests assessed improvements in both perception and production of the target vowel sounds.

Main Results:

  • Significant improvements in both speech perception and production were observed after the training protocol.
  • No significant differences were found between the group that received related production practice and the group that received unrelated production practice.
  • Perceptual training alone was sufficient to enhance production learning, even when production practice was phonologically unrelated.

Conclusions:

  • Perceptual training is a key driver for improving second language speech production, even when production practice is not directly related.
  • The findings contribute to understanding the complex relationship between perception and production in non-native phoneme acquisition.
  • Further research is needed to fully elucidate the mechanisms underlying the interaction between perceptual learning and production practice in L2 speech learning.