An electrophysiological study of boundary conditions for control of recollection in the exclusion task
An electrophysiological study of boundary conditions for control of recollection in the exclusion task
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DOI：
10.1016/j.brainres.2010.02.010
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发表时间：
2010-04-09
期刊：
影响因子：
2.9
通讯作者：
Herron, J. E.
中科院分区：
文献类型：
--
作者：
Evans, L. H.;Wilding, E. L.;Herron, J. E.
事件相关电位（ERPs）是在一个记忆检索任务中收集的，该任务旨在评估人们对记忆检索的控制。参与者首先被要求指出具体名词所表示的物体是否有令人愉快或不愉快的内涵，（ii）通常比鞋盒小或大，或（iii）容易或难以绘制。然后，他们完成了一项检索任务，其中展示了旧的（研究过的）单词和新单词。参与者按一个键表示在绘画任务中遇到的单词，按第二个键表示所有其他测试单词（新单词以及在愉悦和大小判断任务中遇到的单词）。左顶叶ERP的新/旧效应——一种回忆的电生理指标——仅对绘画任务中的单词是可靠的。这一发现与之前的观点一致，即参与者能够成功地优先回忆某些类型的信息。这些数据还提供了一种对这种优先级可以实现的分辨率的洞察，因为几乎没有证据表明左顶叶ERP对大小判断的单词有旧/新影响，尽管视觉图像很可能被用于绘画和大小判断。(C) 2010 Elsevier B.V.版权所有
Event-related potentials (ERPs) were collected in a memory retrieval task that was designed to assess the resolution with which people exerted control over memory retrieval. Participants were first required to indicate whether the objects denoted by concrete nouns (i) had pleasant or unpleasant connotations, (ii) were typically smaller or larger than a shoebox, or (iii) were easy or difficult to draw. They then completed a retrieval task where old (studied) and new words were presented. Participants pressed one key for words encountered in the drawing task, and a second key for all other test words (new words as well as those encountered in the pleasantness and size judgment tasks). The left-parietal ERP old/new effect - an electrophysiological index of recollection - was reliable for words from the drawing task only. This finding is consistent with the view that participants were successful at prioritising recollection of some kinds of information over others. The data also provide an insight into the resolution with which this prioritisation can be implemented, because there was little evidence of a left-parietal ERP old/new effect for words to which a size judgment was made, despite the fact that visual imagery is likely to have been employed for drawing as well as for size judgments. (C) 2010 Elsevier B.V. All rights reserved.