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Domain-general auditory processing determines success in second language pronunciation learning in adulthood: A longitudinal study

Published online by Cambridge University Press:  05 October 2020

Kazuya Saito Open the ORCID record for Kazuya Saito [Opens in a new window] ,
Hui Sun  and
Adam Tierney
Kazuya Saito*
Affiliation:
University College London
Hui Sun
Affiliation:
University of Birmingham
Adam Tierney
Affiliation:
Birkbeck, University of London
*
*Corresponding author. E-mail: k.saito@ucl.ac.uk
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Abstract

In this study, we propose a hypothesis that domain-general auditory processing, a perceptual–cognitive anchor of first language (L1) acquisition, can serve as an important deciding factor for successful postpubertal second language (L2) pronunciation learning. To examine this hypothesis, samples of spontaneous speech were elicited from a total of 30 L1 Chinese L2 English learners at two points (outset and endpoint) during an 8-month study-abroad period in the United Kingdom. The participants were tested on three different components of auditory processing ability (formant, pitch, and duration discrimination) using behavioral instruments. The auditory processing scores were then linked to the segmental, prosodic, and fluency dimensions of their L2 pronunciation proficiency development throughout the project. Overall, most learners’ speech became smoother, faster, and more fluent (fewer pauses, faster articulation rate, and more optimal perceived tempo). Certain learners with high-level auditory processing ability (more precise formant discrimination) appeared to further attain more correct pronunciation of individual sounds and words (greater segmental and word stress accuracy), leading to more advanced L2 phonological skills (fluent and accurate). The findings suggest that auditory processing abilities can be a root of language learning throughout the life span and may apply to the initial- to midphase of naturalistic L2 pronunciation learning in adulthood.

Keywords

auditory processingindividual differencesL2 speechpronunciation

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Type
Original Article
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Applied Psycholinguistics , Volume 41 , Issue 5 , September 2020 , pp. 1083 - 1112
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© The Author(s), 2020. Published by Cambridge University Press

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