The present study investigated how single-talker and babble maskers affect auditory and lexical processing during native (L1) and non-native (L2) speech recognition. Electroencephalogram (EEG) recordings were made while L1 and L2 (Korean) English speakers listened to sentences in the presence of single-talker and babble maskers that were colocated or spatially separated from the target. The predictability of the sentences was manipulated to measure lexical-semantic processing (N400), and selective auditory processing of the target was assessed using neural tracking measures. The results demonstrate that intelligible single-talker maskers cause listeners to attend more to the semantic content of the targets (i.e., greater context-related N400 changes) than when targets are in babble, and that listeners track the acoustics of the target less accurately with single-talker maskers. L1 and L2 listeners both modulated their processing in this way, although L2 listeners had more difficulty with the materials overall (i.e., lower behavioral accuracy, less context-related N400 variation, more listening effort). The results demonstrate that auditory and lexical processing can be simultaneously assessed within a naturalistic speech listening task, and listeners can adjust lexical processing to more strongly track the meaning of a sentence in order to help ignore competing lexical content.

中文翻译：

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噪声中语音的听觉神经跟踪和词汇处理：蒙版类型，空间位置和语言体验。

本研究调查了在本地（L1）和非本地（L2）语音识别过程中单说话者和ba语掩蔽者如何影响听觉和词汇处理。脑电图（EEG）录音是在L1和L2（韩语）的英语使用者聆听句子的情况下进行的。操纵句子的可预测性以测量词汇语义处理（N400），并使用神经跟踪方法评估目标的选择性听觉处理。结果表明，可理解的单说话者掩蔽器使听者更多地关注目标的语义内容（即，与上下文相关的更大的N400变化），而不是当目标陷入混乱时，而且，使用单说话者掩蔽器的听众跟踪目标的声音不太准确。L1和L2侦听器都以此方式调制其处理，尽管L2侦听器在总体材料上存在更多困难（即，行为准确性较低，与上下文相关的N400变体较少，侦听工作量更大）。结果表明，听觉和词汇处理可以在自然主义的语音聆听任务中同时进行评估，并且听众可以调整词汇处理以更强烈地跟踪句子的含义，从而有助于忽略竞争性的词汇内容。更多的聆听努力）。结果表明，听觉和词汇处理可以在自然主义的语音聆听任务中同时进行评估，并且听众可以调整词汇处理以更强烈地跟踪句子的含义，从而有助于忽略竞争性的词汇内容。更多的聆听努力）。结果表明，听觉和词汇处理可以在自然主义的语音聆听任务中同时进行评估，并且听众可以调整词汇处理以更强烈地跟踪句子的含义，从而有助于忽略竞争性的词汇内容。