Neural oscillations reflect meaning identification for novel words in context.
Neural oscillations reflect meaning identification for novel words in context.
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DOI：
10.1162/nol_a_00052
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发表时间：
2022
影响因子：
3.2
通讯作者：
Abel, Alyson D.
中科院分区：
文献类型：
--
作者：
Momsen, Jacob Pohaku;Abel, Alyson D.
在语言加工过程中，人们会迅速利用语境信息来促进对即将出现的单词的理解。当新单词是隐性学习时，周围语境中包含的信息可以限制它们的可能含义。在目前的研究中，EEG被记录为参与者听了一系列的三个句子，每个句子包含一个相同的目标伪词，目的是使用周围语言的上下文信息来识别新单词的含义表示。在一半的试验中，句子在语义上是连贯的，这样参与者就可以为适合所有上下文的新单词开发一个单一的表征。其他试验包含不相关的句子上下文，因此意义关联是不可能的。我们观察到更大的theta波段增强左半球的中央和后部电极在响应的伪词处理的语义相关相比，不相关的上下文。此外，在上下文信息更容易促进伪词意义关联的试验中，相对α和β波段抑制在伪词发作前增加。在theta增强反映词汇通达过程中的加工需求的假设下，本研究为选择性在线记忆提取口语语境中内隐学习的新词汇提供了证据。
During language processing, people make rapid use of contextual information to promote comprehension of upcoming words. When new words are learned implicitly, information contained in the surrounding context can provide constraints on their possible meaning. In the current study, EEG was recorded as participants listened to a series of three sentences, each containing an identical target pseudoword, with the aim of using contextual information in the surrounding language to identify a meaning representation for the novel word. In half of trials, sentences were semantically coherent so that participants could develop a single representation for the novel word that fit all contexts. Other trials contained unrelated sentence contexts so that meaning associations were not possible. We observed greater theta band enhancement over the left-hemisphere across central and posterior electrodes in response to pseudowords processed across semantically related compared to unrelated contexts. Additionally, relative alpha and beta band suppression was increased prior to pseudoword onset in trials where contextual information more readily promoted pseudoword-meaning associations. Under the hypothesis that theta enhancement indexes processing demands during lexical access, the current study provides evidence for selective online memory retrieval to novel words learned implicitly in a spoken context.
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影响因子：
6.2
作者：
Fukkink, RG
通讯作者：
Fukkink, RG
DOI：
10.1016/s0926-6410(01)00024-6
发表时间：
2001-08-01
期刊：
COGNITIVE BRAIN RESEARCH
影响因子：
--
作者：
Klimesch, W;Doppelmayr, M;Gruber, W
通讯作者：
Gruber, W
影响因子：
2.9
作者：
Duff MC;Brown-Schmidt S
通讯作者：
Brown-Schmidt S
影响因子：
5.3
作者：
Herweg, Nora A.;Apitz, Thore;Bunzeck, Nico
通讯作者：
Bunzeck, Nico
影响因子：
3.2
作者：
Bastiaansen, MCM;van der Linden, M;Hagoort, P
通讯作者：
Hagoort, P