Intelligibility and input variability influence adaptation to unfamiliar L2 pronunciation in L2.

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Title: Intelligibility and input variability influence adaptation to unfamiliar L2 pronunciation in L2.
Authors: Nishizawa, Hitoshi1 hnishiza@reitaku-u.ac.jp
Source: Foreign Language Annals. Sep2025, Vol. 58 Issue 3, p703-722. 20p.
Subject Terms: *Intelligibility of speech, *Mutual intelligibility of modern languages, *Second language acquisition, *Speech perception, Pronunciation
Abstract: Past studies have shown that first language and second language (L2) listeners can adapt to unfamiliar L2 pronunciation. However, little is known about the process of adaptation, especially by L2 listeners. The present study examined the degree to which L2 listeners' adaptation process is influenced by speaker intelligibility and input variability. In a 2‐day experiment, L2 listeners heard and transcribed short sentences five times without feedback in seven groups that differed in speaker intelligibility and input variability (between‐subject). Adaptation was measured by transcription accuracy. Findings showed greater improvements for groups with high intelligibility and high input variability. In particular, exposure to multiple speakers of the same variety resulted in the largest gain. Thus, to facilitate adaptation to unfamiliar L2 pronunciation, high‐intelligibility speakers and/or multiple speakers of the same language background should be used. [ABSTRACT FROM AUTHOR]
Copyright of Foreign Language Annals is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Intelligibility and input variability influence adaptation to unfamiliar L2 pronunciation in L2.
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  Data: <searchLink fieldCode="AR" term="%22Nishizawa%2C+Hitoshi%22">Nishizawa, Hitoshi</searchLink><relatesTo>1</relatesTo><i> hnishiza@reitaku-u.ac.jp</i>
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  Data: <searchLink fieldCode="JN" term="%22Foreign+Language+Annals%22">Foreign Language Annals</searchLink>. Sep2025, Vol. 58 Issue 3, p703-722. 20p.
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  Data: *<searchLink fieldCode="DE" term="%22Intelligibility+of+speech%22">Intelligibility of speech</searchLink><br />*<searchLink fieldCode="DE" term="%22Mutual+intelligibility+of+modern+languages%22">Mutual intelligibility of modern languages</searchLink><br />*<searchLink fieldCode="DE" term="%22Second+language+acquisition%22">Second language acquisition</searchLink><br />*<searchLink fieldCode="DE" term="%22Speech+perception%22">Speech perception</searchLink><br /><searchLink fieldCode="DE" term="%22Pronunciation%22">Pronunciation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Past studies have shown that first language and second language (L2) listeners can adapt to unfamiliar L2 pronunciation. However, little is known about the process of adaptation, especially by L2 listeners. The present study examined the degree to which L2 listeners' adaptation process is influenced by speaker intelligibility and input variability. In a 2‐day experiment, L2 listeners heard and transcribed short sentences five times without feedback in seven groups that differed in speaker intelligibility and input variability (between‐subject). Adaptation was measured by transcription accuracy. Findings showed greater improvements for groups with high intelligibility and high input variability. In particular, exposure to multiple speakers of the same variety resulted in the largest gain. Thus, to facilitate adaptation to unfamiliar L2 pronunciation, high‐intelligibility speakers and/or multiple speakers of the same language background should be used. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Foreign Language Annals is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/flan.70013
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      – Code: eng
        Text: English
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      – SubjectFull: Intelligibility of speech
        Type: general
      – SubjectFull: Mutual intelligibility of modern languages
        Type: general
      – SubjectFull: Second language acquisition
        Type: general
      – SubjectFull: Speech perception
        Type: general
      – SubjectFull: Pronunciation
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      – TitleFull: Intelligibility and input variability influence adaptation to unfamiliar L2 pronunciation in L2.
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              M: 09
              Text: Sep2025
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              Y: 2025
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