Examining ERP correlates of recognition memory: evidence of accurate source recognition without recollection.
Examining ERP correlates of recognition memory: evidence of accurate source recognition without recollection.
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DOI：
10.1016/j.neuroimage.2012.04.031
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发表时间：
2012-08-01
期刊：
影响因子：
5.7
通讯作者：
Yonelinas, Andrew P.
中科院分区：
文献类型：
--
作者：
Addante, Richard J.;Ranganath, Charan;Yonelinas, Andrew P.
回忆通常与高识别置信度和准确的源记忆相关联。然而，有时受试者甚至对不能自信地识别的项目做出准确的来源记忆判断，并且不知道这些反应是否基于回忆或其他记忆过程。在目前的研究中，我们测量事件相关电位（ERP），而受试者作出项目和源记忆的信心判断，以确定是否回忆支持准确的源识别反应的项目，没有信心地承认。与以前的研究一致，我们发现再认记忆与两种ERP效应相关：早期的FN 400效应和后期的顶叶新旧效应[晚期正成分（LPC）]，这两种效应分别与熟悉和回忆相关。FN 400逐渐增加项目识别的信心，而LPC只观察到高度自信的识别反应。LPC也与来源准确性有关，但仅适用于已收到高置信度项目识别响应的项目;准确的来源判断，不太自信地承认的项目没有表现出典型的ERP相关的回忆或熟悉，而是表现出一个迟到的，广泛分布的负ERP差异。结果表明，即使在回忆失败的情况下，也可以对情景语境进行准确的来源判断。
Recollection is typically associated with high recognition confidence and accurate source memory. However, subjects sometimes make accurate source memory judgments even for items that are not confidently recognized, and it is not known whether these responses are based on recollection or some other memory process. In the current study, we measured event related potentials (ERPs) while subjects made item and source memory confidence judgments in order to determine whether recollection supported accurate source recognition responses for items that were not confidently recognized. In line with previous studies, we found that recognition memory was associated with two ERP effects: an early on-setting FN400 effect, and a later parietal old-new effect [Late Positive Component (LPC)], which have been associated with familiarity and recollection, respectively. The FN400 increased gradually with item recognition confidence, whereas the LPC was only observed for highly confident recognition responses. The LPC was also related to source accuracy, but only for items that had received a high confidence item recognition response; accurate source judgments to items that were less confidently recognized did not exhibit the typical ERP correlate of recollection or familiarity, but rather showed a late, broadly distributed negative ERP difference. The results indicate that accurate source judgments of episodic context can occur even when recollection fails.
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影响因子：
2.9
作者：
Diana RA;Van den Boom W;Yonelinas AP;Ranganath C
通讯作者：
Ranganath C
影响因子：
2.6
作者：
Aly M;Knight RT;Yonelinas AP
通讯作者：
Yonelinas AP
影响因子：
5.7
作者：
Bader, Regine;Mecklinger, Axel;Meyer, Patric
通讯作者：
Meyer, Patric
影响因子：
3.5
作者：
Diana, RA;Reder, LM;Park, H
通讯作者：
Park, H
DOI：
10.1073/pnas.96.4.1794
发表时间：
1999-02-16
影响因子：
11.1
作者：
Düzel, E;Cabeza, R;Tulving, E
通讯作者：
Tulving, E