Utsumi Kenta, Saito Satoru
a Graduate School of Education , Kyoto University , Kyoto , Japan.
Memory. 2016;24(4):437-43. doi: 10.1080/09658211.2015.1015573. Epub 2015 Mar 2.
Remembering planned actions at the correct time in the future is an integral component of prospective cognition. Recent studies on future remembering have led to suggestions that prospective cognition might be based on past experience. To test this hypothesis, we focused on retrieval-induced forgetting (RIF), which usually indicates that remembering past events suppresses memory for related but different past events. The current study assessed RIF in two kinds of event-based prospective memory (PM) tasks using either focal or non-focal cues for ongoing tasks. Participants studied six members from each of eight taxonomic categories and then practiced recalling three of the six members from four of the eight categories using category-stem cues. This retrieval practice suppressed the detection of non-practiced members of the practiced categories during the PM task with non-focal cues (Experiment 1) but not with focal cues (Experiment 2). The results suggest that recall of certain items inhibits the function of the others as PM cues, but only if the PM task does not largely share its processing with the ongoing task.
在未来正确的时间记住计划好的行动是前瞻性认知的一个不可或缺的组成部分。最近关于未来记忆的研究表明，前瞻性认知可能基于过去的经验。为了验证这一假设，我们重点研究了提取诱发遗忘（RIF），它通常表明回忆过去的事件会抑制对相关但不同的过去事件的记忆。本研究在两种基于事件的前瞻性记忆（PM）任务中评估了RIF，这两种任务分别使用了正在进行任务中的焦点或非焦点线索。参与者学习了八个分类类别的六个成员，然后使用类别词干线索练习从八个类别中的四个类别中回忆六个成员中的三个。这种提取练习抑制了在使用非焦点线索的PM任务中对已练习类别中未练习成员的检测（实验1），但在使用焦点线索时没有抑制（实验2）。结果表明，回忆某些项目会抑制其他项目作为PM线索的功能，但前提是PM任务与正在进行的任务在很大程度上不共享其处理过程。
