Two languages, one developing brain: event-related potentials to words in bilingual toddlers
Two languages, one developing brain: event-related potentials to words in bilingual toddlers
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DOI：
10.1111/j.1467-7687.2005.00453.x
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发表时间：
2006-01-01
影响因子：
3.7
通讯作者：
Mills, DL
中科院分区：
文献类型：
--
作者：
Conboy, BT;Mills, DL
婴儿双语提供了一个独特的机会来研究语言经验和成熟对大脑发育的相对影响，每个孩子都可以自己控制。研究人员对 19 至 22 个月大的英语-西班牙语双语幼儿进行了单词事件相关电位 (ERP) 的检查。儿童的主导语言与非主导语言在早期正成分 (P100) 的横向不对称性中引发了不同的神经活动模式，以及 200-400 毫秒和 400-600 毫秒内已知词与未知词的 ERP 差异的潜伏期和分布。根据总概念词汇得分，“高”和“低”词汇组的 ERP 效果也有所不同。结果表明，与语言相关的大脑活动的组织与语言体验有关，而不是与大脑成熟有关。
Infant bilingualism offers a unique opportunity to study the relative effects of language experience and maturation on brain development, with each child serving as his or her own control. Event-related potentials (ERPs) to words were examined in 19 to 22-month-old English-Spanish bilingual toddlers. The children's dominant vs. nondominant languages elicited different patterns of neural activity in the lateral asymmetry of an early positive component (P100), and the latencies and distributions of ERP differences to known vs. unknown words from 200-400 and 400-600 ms. ERP effects also differed for 'high' and 'low' vocabulary groups based on total conceptual vocabulary scores. The results indicate that the organization of language-relevant brain activity is linked to experience with language rather than brain maturation.