The Psychological Imaging Laboratory, Department of Psychology, University of Stirling, Stirling FK9 4LA, UK.
Brain Res. 2010 Mar 8;1318:87-95. doi: 10.1016/j.brainres.2009.11.047. Epub 2009 Dec 5.
To examine how judgments of learning (JOLs) are made, we used event-related potentials (ERPs) to compare neural correlates of JOLs and successful memory encoding. Participants saw word pairs, and for each made a JOL indicating how confident they were that they would remember the pairing on a later cued recall task. ERPs were recorded while JOLs were made and were separated according to whether items were: (i) remembered or forgotten on the subsequent test, and (ii) rated likely or unlikely to be remembered. An early positive-going ERP effect was associated with both of these comparisons, whereas a later negative-going effect was present only in the separation based upon JOL ratings. ERP data therefore indicate that JOLs do not reduce to encoding processes that predict the accuracy of memory judgments.
为了研究学习判断（JOL）是如何做出的，我们使用事件相关电位（ERP）来比较 JOL 和成功的记忆编码的神经相关性。参与者观看单词对，然后对每个单词做出一个 JOL，表明他们对自己在以后的提示回忆任务中记住配对的信心。在做出 JOL 时记录 ERP，并根据项目是否：（i）在随后的测试中被记住或遗忘，以及（ii）被评为可能或不可能被记住进行分离。一个早期的正向前向 ERP 效应与这两个比较都有关，而一个较晚的负向后向效应仅存在于基于 JOL 评分的分离中。因此，ERP 数据表明，JOL 并不仅仅是预测记忆判断准确性的编码过程。
