Neural signatures of language co-activation and control in bilingual spoken word comprehension.
Neural signatures of language co-activation and control in bilingual spoken word comprehension.
复制标题
双语口语单词理解中语言共同激活和控制的神经签名。
DOI：
10.1016/j.brainres.2017.03.023
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发表时间：
2017-06-15
期刊：
影响因子：
2.9
通讯作者：
Marian V
中科院分区：
文献类型：
--
作者：
Chen P;Bobb SC;Hoshino N;Marian V
为了研究双语口语单词理解过程中语言共激活和控制的神经特征，韩英双语者和英语单语者被要求对非正式呈现的英语单词对进行显性或隐性语义相关性判断。在两个关键条件下，参与者听到由英语-韩语语际同音词组成的单词对（例如，音/mu：n/在英语中表示“月亮”，在韩语中表示“门”）作为主词，而英语单词作为目标。在同音字相关的条件下，目标（例如，“锁”）与同音字的韩语含义有关，但与同音字的英语含义无关。在同音不相关条件下，目标与同音词的韩语含义或同音词的英语含义无关。在公开回应的情况下，ERP结果显示，减少N400效应在双语者的同音相关词对正相关的金额，他们每天接触到韩国。在隐蔽反应的情况下，ERP结果显示，减少了后期积极成分的同音相关的词对在右半球，这种后期积极的影响是有关的抑制干扰在非语言任务的神经效率。总之，这些研究结果表明：1）双语口语单词理解中的语言共激活程度受到日常接触非目标语言的量的调节; 2）受跨语言激活影响较小的双语者在抑制非语言任务中的干扰方面也可能具有更高的效率。
To examine the neural signatures of language co-activation and control during bilingual spoken word comprehension, Korean-English bilinguals and English monolinguals were asked to make overt or covert semantic relatedness judgments on auditorily-presented English word pairs. In two critical conditions, participants heard word pairs consisting of an English-Korean interlingual homophone (e.g., the sound /mu:n/ means “moon” in English and “door” in Korean) as the prime and an English word as the target. In the homophone-related condition, the target (e.g., “lock”) was related to the homophone’s Korean meaning, but not related to the homophone’s English meaning. In the homophone-unrelated condition, the target was unrelated to either the homophone’s Korean meaning or the homophone’s English meaning. In overtly responded situations, ERP results revealed that the reduced N400 effect in bilinguals for homophone-related word pairs correlated positively with the amount of their daily exposure to Korean. In covertly responded situations, ERP results showed a reduced late positive component for homophone-related word pairs in the right hemisphere, and this late positive effect was related to the neural efficiency of suppressing interference in a non-linguistic task. Together, these findings suggest 1) that the degree of language co-activation in bilingual spoken word comprehension is modulated by the amount of daily exposure to the non-target language; and 2) that bilinguals who are less influenced by cross-language activation may also have greater efficiency in suppressing interference in a non-linguistic task.
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影响因子：
2.5
作者：
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DOI：
10.1037/cjep2006008
发表时间：
2006-03-01
影响因子：
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作者：
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