Retrieval intention modulates the effects of directed forgetting instructions on recollection.
Retrieval intention modulates the effects of directed forgetting instructions on recollection.
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检索意图调节定向遗忘指令对回忆的影响
DOI：
10.1371/journal.pone.0104701
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发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
Guo CY
中科院分区：
文献类型：
--
作者：
Xiao X;Lucas HD;Paller KA;Ding JH;Guo CY
记忆提取的神经认知基础通常是通过研究大脑潜在的旧/新效应来检验的，即在识别测试中，成功记住的重复刺激和正确拒绝的新刺激之间的大脑活动差异。在这项研究中，我们将对单词的旧/新效应的分析与项目方法定向遗忘操作相结合，以分离由最初指示参与者致力于记忆的单词引发的提取过程与最初指示参与者忘记的单词所引发的提取过程之间的差异。在外显记忆测验(再认测验)和内隐记忆测验(词汇判断测验)中，我们比较了被遗忘(TBF)词和被记住(TBR)词所引起的旧/新效应。行为学结果显示，在再认测验中有明显的定向遗忘效应，而在词汇判断测验中没有。与行为研究结果相呼应的是，对大脑电位的分析显示，只有在识别测试中才有定向遗忘的证据。在本实验中，在450-650ms(P600旧/新效应)范围内，与TBF词相比，TBR的电位更具正性。相比之下，在词汇判断测试中，P600效应在两种题型之间并无显著差异。在前人研究的背景下，将类似的顶叶旧/新效应与情景信息的回忆联系起来，这些数据表明，定向遗忘效应主要体现在以任务为中心的情景提取中比以任务为中心的项目更多的情景提取中，提取意图可能对这些定向遗忘效应的发生起重要作用。
The neurocognitive basis of memory retrieval is often examined by investigating brain potential old/new effects, which are differences in brain activity between successfully remembered repeated stimuli and correctly rejected new stimuli in a recognition test. In this study, we combined analyses of old/new effects for words with an item-method directed-forgetting manipulation in order to isolate differences between the retrieval processes elicited by words that participants were initially instructed to commit to memory and those that participants were initially instructed to forget. We compared old/new effects elicited by to-be-forgotten (TBF) words with those elicited by to-be-remembered (TBR) words in both an explicit-memory test (a recognition test) and an implicit-memory test (a lexical-decision test). Behavioral results showed clear directed forgetting effects in the recognition test, but not in the lexical decision test. Mirroring the behavioral findings, analyses of brain potentials showed evidence of directed forgetting only in the recognition test. In this test, potentials from 450–650 ms (P600 old/new effects) were more positive for TBR relative to TBF words. By contrast, P600 effects evident during the lexical-decision test did not differ in magnitude between TBR and TBF items. When taken in the context of prior studies that have linked similar parietal old/new effects to the recollection of episodic information, these data suggest that directed-forgetting effects manifest primarily in greater episodic retrieval by TBR than TBF items, and that retrieval intention may be important for these directed-forgetting effects to occur.
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影响因子：
24.8
作者：
Kutas M;Federmeier KD
通讯作者：
Federmeier KD
影响因子：
56.9
作者：
GRAF, P;MANDLER, G;HADEN, PE
通讯作者：
HADEN, PE
影响因子：
8.2
作者：
PALLER, KA;KUTAS, M;MCISAAC, HK
通讯作者：
MCISAAC, HK
影响因子：
2.6
作者：
Lucas HD;Taylor JR;Henson RN;Paller KA
通讯作者：
Paller KA
DOI：
10.1037/a0015728
发表时间：
2009-07-01
影响因子：
2.6
作者：
Lehman, Melissa;Malmberg, Kenneth J.
通讯作者：
Malmberg, Kenneth J.