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      • Department of Psychology
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      Learning to perceive non-native tones via distributional training: Effects of task and acoustic cue weighting

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      Author(s)
      Liu, Liquan
      Yuan, Chi
      Ong, Jia Hoong
      Tuninetti, Alba
      Antoniou, Mark
      Cutler, Anne
      Escudero, Paola
      Date
      2022-04-27
      Source Title
      Brain Sciences
      Print ISSN
      20763425
      Publisher
      MDPI
      Volume
      12
      Issue
      5
      Pages
      1 - 16
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      As many distributional learning (DL) studies have shown, adult listeners can achieve discrimination of a difficult non-native contrast after a short repetitive exposure to tokens falling at the extremes of that contrast. Such studies have shown using behavioural methods that a short distributional training can induce perceptual learning of vowel and consonant contrasts. However, much less is known about the neurological correlates of DL, and few studies have examined non-native lexical tone contrasts. Here, Australian-English speakers underwent DL training on a Mandarin tone contrast using behavioural (discrimination, identification) and neural (oddball-EEG) tasks, with listeners hearing either a bimodal or a unimodal distribution. Behavioural results show that listeners learned to discriminate tones after both unimodal and bimodal training; while EEG responses revealed more learning for listeners exposed to the bimodal distribution. Thus, perceptual learning through exposure to brief sound distributions (a) extends to non-native tonal contrasts, and (b) is sensitive to task, phonetic distance, and acoustic cue-weighting. Our findings have implications for models of how auditory and phonetic constraints influence speech learning. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
      Keywords
      Acoustic Cue-Weighting
      Discrimination
      Distributional Learning
      Identification
      Oddball-EEG
      Phonetic Distance
      Tone
      Permalink
      http://hdl.handle.net/11693/112022
      Published Version (Please cite this version)
      https://dx.doi.org/10.3390/brainsci12050559
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