Linnaeus University Language Processing Lab, Department of Swedish, Linnaeus University, Trummenvägen, SE-351 00 Växjö, Sweden.
Neurocognition and Perception Lab, Psychological and Brain Sciences, University of Massachusetts, Amherst, MA 01003, USA.
Brain Lang. 2023 May;240:105265. doi: 10.1016/j.bandl.2023.105265. Epub 2023 Apr 25.
This study investigated second language (L2-English) phonological processing in 31 Spanish-English bilingual, 6- to 8-year-old schoolchildren in an event-related potential (ERP) auditory pseudoword rhyming paradigm. In addition, associations between ERP effects and L2 proficiency as measured by standardized tests of receptive language and receptive vocabulary were explored. We found a classic posterior ERP rhyming effect that was more widely distributed in children with higher L2 proficiency in group analyses and was larger for children with better L2 proficiency in correlation analyses. In contrast, the amplitude of an early (75-125 ms) auditory positivity was larger in children with lower L2 proficiency. This pattern suggests differential use of early and late auditory/phonological processing resources in the pseudoword rhyme task associated with L2 proficiency, which is consistent with the predictions of the lexical restructuring model in a bilingual context.
本研究采用事件相关电位（ERP）听觉假词押韵范式，调查了 31 名西班牙语-英语双语、6 至 8 岁的学童的第二语言（L2-英语）语音处理。此外，还探讨了 ERP 效应与通过接受性语言和接受性词汇标准化测试测量的 L2 熟练程度之间的关联。我们发现了一个经典的后 ERP 押韵效应，在组分析中，L2 熟练程度较高的儿童分布更广泛，在相关分析中，L2 熟练程度较好的儿童更大。相比之下，在 L2 熟练程度较低的儿童中，早期（75-125ms）听觉正波的振幅更大。这种模式表明，在与 L2 熟练程度相关的假词押韵任务中，早期和晚期听觉/语音处理资源的使用存在差异，这与双语环境下词汇重构模型的预测一致。
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