Neural changes underlying early stages of L2 vocabulary acquisition.
Neural changes underlying early stages of L2 vocabulary acquisition.
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DOI：
10.1016/j.jneuroling.2016.05.002
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发表时间：
2016-11
影响因子：
2
通讯作者：
Midgley KJ
中科院分区：
文献类型：
--
作者：
Pu H;Holcomb PJ;Midgley KJ
研究表明，经过数周或数月的教学后，第二语言（L2）习得后的神经变化。但是，这种变化是否比以前显示的更早被发现？本研究通过记录第一周内的事件相关电位（ERP）来探讨第二语言词汇习得早期阶段的电生理变化。没有西班牙语经验的成年母语为英语的人完成了不到四个小时的西班牙语词汇培训，培训前和培训后的ERP记录为向后翻译任务。结果表明，开始L2学习者表现出快速的神经变化，学习后，表现在变化的N400 -ERP组件词汇语义处理和L2熟练程度敏感。具体而言，学习者在学习后的早期阶段的第二语言习得的N400振幅的增长，以及一个向后翻译N400启动效应，是不存在的预训练。这些结果是在最低限度的L2训练的几天内显示的，这表明在成人第二语言习得过程中捕获的神经变化比以前显示的更快。这些发现与成人二语学习者双语早期阶段的模型（如Kroll和Stewart的RHM）是一致的，并加强了使用ERP测量来评估二语学习。
Research has shown neural changes following second language (L2) acquisition after weeks or months of instruction. But are such changes detectable even earlier than previously shown? The present study examines the electrophysiological changes underlying the earliest stages of second language vocabulary acquisition by recording event-related potentials (ERPs) within the first week of learning. Adult native English speakers with no previous Spanish experience completed less than four hours of Spanish vocabulary training, with pre- and post-training ERPs recorded to a backward translation task. Results indicate that beginning L2 learners show rapid neural changes following learning, manifested in changes to the N400 — an ERP component sensitive to lexicosemantic processing and degree of L2 proficiency. Specifically, learners in early stages of L2 acquisition show growth in N400 amplitude to L2 words following learning as well as a backward translation N400 priming effect that was absent pre-training. These results were shown within days of minimal L2 training, suggesting that the neural changes captured during adult second language acquisition are more rapid than previously shown. Such findings are consistent with models of early stages of bilingualism in adult learners of L2 (e.g. Kroll and Stewart’s RHM) and reinforce the use of ERP measures to assess L2 learning.
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DOI：
10.1177/1529100610387084
发表时间：
2009-12-01
影响因子：
--
作者：
Bialystok, Ellen;Craik, Fergus I M;Gollan, Tamar H
通讯作者：
Gollan, Tamar H
影响因子：
3
作者：
GREENHOUSE, SW;GEISSER, S
通讯作者：
GEISSER, S
影响因子：
2
作者：
Osterhout, Lee;Poliakov, Andrew;Hirschensohn, Julia
通讯作者：
Hirschensohn, Julia
影响因子：
2.5
作者：
Grant, Angela M.;Fang, Shin-Yi;Li, Ping
通讯作者：
Li, Ping
影响因子：
3.7
作者：
Voss JL;Federmeier KD
通讯作者：
Federmeier KD