In what way does the parietal ERP old/new effect index recollection?
In what way does the parietal ERP old/new effect index recollection?
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DOI：
10.1016/s0167-8760(99)00095-1
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发表时间：
2000-02-01
影响因子：
3
通讯作者：
Wilding, EL
中科院分区：
文献类型：
--
作者：
Wilding, EL
当受试者执行记忆检索任务时，记录事件相关电位（ERP），该任务需要旧/新判断来直观地呈现旧（以前学习过）和新单词。对于判断为旧的单词，受试者做出两个二元强制选择上下文（以下来源）判断，表示在研究中与测试单词相关的声音（男/女）和任务（动作/喜欢）。通过根据语音和任务判断的准确性分离 ERP，可以测试以下预测：正确识别顶叶头皮部位的新旧单词的 ERP 之间的差异（顶叶旧/新效应）对从情景记忆中检索到的信息的数量或质量敏感（Rugg, M.D., Cox, C.J.C., Doyle, M.C., Wells, T., 1995。事件相关电位以及低频和高频单词的回忆 Neuropsychologia 33, 471-484)。根据这一提议，顶叶旧/新效应的大小与准确的源判断的数量共同变化。这一发现与顶叶新/旧效应以分级方式索引记忆的建议是一致的。 (C) 2000 Elsevier Science B.V. 保留所有权利。
Event-related potentials (ERPs) were recorded while subjects performed a memory retrieval task requiring old/new judgements to visually presented old (previously studied) and new words. For words judged old, subjects made two binary forced-choice context (hereafter source) judgements, denoting the voice (male/female) and task (action/liking) with which the test word had been associated at study. By separating the ERPs according to the accuracy of the voice and task judgements, it was possible to test the prediction that the differences between ERPs to correctly identified old and new words at parietal scalp sites (parietal old/new effects) are sensitive to the amount or quality of information that is retrieved from episodic memory (Rugg, M.D., Cox, C.J.C., Doyle, M.C., Wells, T., 1995. Event-related potentials and the recollection of low and high frequency words. Neuropsychologia 33, 471-484). In keeping with this proposal, the magnitude of the parietal old/new effects co-varied with the number of accurate source judgements. This finding is consistent with proposals that the parietal old/new effect indexes recollection in a graded fashion. (C) 2000 Elsevier Science B.V. All rights reserved.