Previous event-related potentials (ERP) research has investigated how foreign accent modulates listeners’ neural responses to lexical-semantic and morphosyntactic errors. We extended this line of research to consider whether pronunciation errors in Mandarin Chinese are processed differently when a foreign-accented speaker makes them relative to when a native-accented speaker makes them (a conceptual replication using the materials from Pelzl et al., 2019). We evaluated behavioral judgments, the N400, and late positive component while native speakers listened to native and foreign-accented sentences containing tone and rhyme pronunciation errors. We observed effects that suggested that the participants were prone to detect errors in foreign-accented speech more often in sentences with no critical word deviation but also were less likely to reject critical tone errors produced by the foreign-accented speaker. ERP results showed a main effect of accent on late positive components that suggested a difference in degree for sensitivity to foreign-accented compared to native-accented pronunciation errors rather than a completely different response pattern. We found no effect of accent on N400s, with statistically significant differences between tone and rhyme errors regardless of speaker accent.

中文翻译：

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外国语普通话对音调错误的行为和神经反应

以前的事件相关电位（ERP）研究已经研究了外国口音如何调节听众对词汇语义和形态句法错误的神经反应。我们扩展了这一研究范围，以考虑相对于以母语为母语的人来说，普通话发音错误的处理方式是否与以母语为母语的人说话时的处理方式不同（使用Pelzl等人的材料进行的概念复制，2019年） 。我们评估了行为判断，N400和后期积极成分，而母语为母语的人则在听母语和外来语重音句子，其中包含音调和押韵发音错误。我们观察到的影响表明，参与者倾向于在没有关键单词偏差的句子中更经常地检测到带有异国情调的语音中的错误，但是也不太可能拒绝由具有异国情调的说话者产生的关键音调错误。ERP结果显示了重音对后期阳性成分的主要影响，这表明与外来重音的发音错误相比，对外来重音的敏感度有所不同，而不是完全不同的响应方式。我们发现重音对N400s没有影响，无论说话人的重音如何，音调和韵律错误之间的统计差异都很大。ERP结果显示了重音对后期阳性成分的主要影响，这表明与外来重音的发音错误相比，对外来重音的敏感度有所不同，而不是完全不同的响应方式。我们发现重音对N400s没有影响，无论说话人的重音如何，音调和韵律错误之间的统计差异都很大。ERP结果显示了重音对后期阳性成分的主要影响，这表明与外来重音的发音错误相比，对外来重音的敏感度有所不同，而不是完全不同的响应方式。我们发现重音对N400s没有影响，无论说话人的重音如何，音调和韵律错误之间的统计差异都很大。