The neural timecourse of American English vowel discrimination by Japanese, Russian and Spanish second-language learners of English
The neural timecourse of American English vowel discrimination by Japanese, Russian and Spanish second-language learners of English
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日语、俄语和西班牙语第二语言英语学习者对美式英语元音辨别的神经时间过程
DOI：
10.1017/s1366728921000201
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Strange Winifred
中科院分区：
文献类型：
--
作者：
Shafer Valerie L.;Kresh Sarah;Ito Kikuyo;Hisagi Miwako;Vidal Nancy;Higby Eve;Castillo Daniela;Strange Winifred
本研究探讨了母语（L1）音素特征和语音显著性对第二语言（L2）美国英语元音识别的影响。在感知任务中，以西班牙语、日语或俄语为母语的成人英语第二语言学习者与AE对照相比，对频繁/æ：/刺激中/æ：/作为古怪（偏差）的频谱差异的辨别能力较差。在感知和神经失配负性（MMN）方面，西班牙语听者在频谱-时间对比上与对照组有显著差异，但仅在偏差/ /和/ / /上（持续时间递减）有显著差异。对于偏倚的/ / /和偏倚的/ /æ：/和/ /或/ / /，所有的参与者都表现出相同的MMN振幅。/ /和/ / /的不对称模式表明L2语音细节只对偏离者保留。这些发现表明，母语语音比语音显著性对辨别的影响更大。
This study investigated the influence of first language (L1) phoneme features and phonetic salience on discrimination of second language (L2) American English (AE) vowels. On a perceptual task, L2 adult learners of English with Spanish, Japanese or Russian as an L1 showed poorer discrimination of the spectral-only difference between /æ:/ as the oddball (deviant) among frequent /ɑ:/ stimuli compared to AE controls. The Spanish listeners showed a significant difference from the controls for the spectral-temporal contrast between /ɑ:/ and /ʌ/ for both perception and the neural Mismatch Negativity (MMN), but only for deviant /ɑ:/ versus /ʌ/ (duration decrement). For deviant /ʌ/ versus /ɑ:/, and for deviant /æ:/ versus /ʌ/ or /ɑ:/, all participants showed equivalent MMN amplitude. The asymmetrical pattern for /ɑ:/ and /ʌ/ suggested that L2 phonetic detail was maintained only for the deviant. These findings indicated that discrimination was more strongly influenced by L1 phonology than phonetic salience.