Recognition memory for one-trial-unitized word pairs: Evidence from event-related potentials
Recognition memory for one-trial-unitized word pairs: Evidence from event-related potentials
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DOI：
10.1016/j.neuroimage.2009.12.100
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发表时间：
2010-04-01
期刊：
影响因子：
5.7
通讯作者：
Meyer, Patric
中科院分区：
文献类型：
--
作者：
Bader, Regine;Mecklinger, Axel;Meyer, Patric
联想记忆测试中的表现通常被认为需要回忆，而熟悉度不能支持联想记忆。然而，最近的研究表明，熟悉性有助于联想记忆时，将被关联的刺激在编码过程中的单位化。在这里，我们调查了两种不同的编码条件下提取的词对的电生理相关。语义上不相关的词对作为句子框架中的独立词汇单位（非单位化词对）或与允许将联合收割机词对组合成新概念的定义（单位化词对）一起呈现。在测试中，参与者区分在学习过程中出现在同一配对中的单词对，重组或新的配对。采用事件相关电位（ERPs）检测记忆过程。一个早期的旧/新的效果与顶叶最大值被发现为unitized字对，而一个质的不同的晚期旧/新的效果引起的非unitized字对，只有。这些研究结果表明，一个审判单位化的单词对识别不同的非单位化的单词对。我们将讨论单位化导致特定形式的熟悉感概念流畅性和绝对熟悉感参与的可能性。(C)2009 Elsevier Inc. All rights reserved.
Performance in tests of associative memory is generally thought to require recollection while familiarity cannot support memory for associations. However, recent research suggested that familiarity contributes to associative memory when the to-be-associated stimuli are unitized during encoding. Here, we investigated the electrophysiological correlates of retrieval of word pairs after two different encoding conditions. Semantically unrelated word pairs were presented as separate lexical units in a sentence frame (non-unitized word pairs) or together with a definition that allows to combine word pairs to a new concept (unitized word pairs). At test, participants discriminated between word pairs that appeared in the same pairing during study, recombined, or new pairs. Memory processes were examined by means of event-related potentials (ERPs). An early old/new effect with a parietal maximum was found for unitized word pairs while a qualitatively different late old/new effect was elicited by non-unitized word pairs, only. These findings suggest that one-trial-unitized word pairs are recognized differently from non-unitized word pairs. We will discuss the possibility that unitization leads to the engagement of specific forms of familiarity-conceptual fluency and absolute familiarity. (C) 2009 Elsevier Inc. All rights reserved.