When remembering causes forgetting:: Electrophysiological correlates of retrieval-induced forgetting
When remembering causes forgetting:: Electrophysiological correlates of retrieval-induced forgetting
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DOI：
10.1093/cercor/bhl044
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发表时间：
2007-06-01
期刊：
影响因子：
3.7
通讯作者：
Mecklinger, Axel
中科院分区：
文献类型：
--
作者：
Johansson, Mikael;Aslan, Alp;Mecklinger, Axel
人们往往会忘记与他们积极试图找回的记忆有关的信息。根据行为学研究的结果，这种检索诱发的遗忘被认为是抑制控制过程的结果，抑制控制过程被用来减弱竞争性记忆痕迹引起的干扰。采用脑活动的电生理测量，本研究检查了这些抑制过程的神经相关性。结果表明，持续的前额叶事件相关电位1)与在先前学习的单词的再加工过程中是否需要选择性记忆检索有关；2)预测在随后的回忆测试中观察到的遗忘量的个体差异。目前的研究结果支持了提取诱发遗忘的抑制控制理论，并与前额叶区域在选择和维持相关记忆表征方面发挥重要作用的观点一致，这些记忆表征是以牺牲当前不相关的记忆表征为代价的。
People tend to forget information that is related to memories they are actively trying to retrieve. On the basis of results from behavioral studies, such retrieval-induced forgetting is held to result from inhibitory control processes that are recruited to attenuate interference caused by competing memory traces. Employing electrophysiological measures of brain activity, the present study examined the neural correlates of these inhibitory processes as they operate. The results demonstrate that sustained prefrontal event-related potentials were 1) related to whether or not selective memory retrieval was required during reprocessing of previously studied words and 2) predictive of individual differences in the amount of forgetting observed in an ensuing recall test. The present findings give support to an inhibitory control account of retrieval-induced forgetting and are in accord with the view that prefrontal regions play an important role in the selection and maintenance of relevant memory representations at the expense of those currently irrelevant.