The crucial role of postcue encoding in directed forgetting and context-dependent forgetting
The crucial role of postcue encoding in directed forgetting and context-dependent forgetting
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DOI：
10.1037/0278-7393.33.5.977
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发表时间：
2007-09-01
影响因子：
2.6
通讯作者：
Baeuml, Karl-Heinz
中科院分区：
文献类型：
--
作者：
Pastoetter, Bernhard;Baeuml, Karl-Heinz
如果在学习之后，提供了一个遗忘线索，并学习了新的材料，人们可以故意忘记以前学习过的材料。最近有人提出，这种列表法定向遗忘的出现是因为遗忘线索引起了内部语境的变化，并导致了对所研究材料的语境依赖性遗忘（L。Sahakyan & C. A Kelley，2002年）。作者比较了定向遗忘和情境依赖性遗忘，研究了内部情境的变化是否像遗忘线索一样需要随后学习新材料才能有效。参与者研究了一个项目列表，并在研究后，收到了一个记住线索或忘记线索或他们的内部环境通过想象任务改变。在每种情况下，一半的参与者学习了第二个列表，另一半则完成了一个无关的分心任务。只有当第二个列表的学习被内插时，遗忘线索和内部上下文的变化才引起对第一个列表的遗忘。这些结果表明，后线索编码的新材料是至关重要的定向遗忘和（某些形式的）上下文相关的遗忘。
People can intentionally forget previously studied material if, after study, a forget cue is provided and new material is learned. It has recently been suggested that such list-method directed forgetting arises because the forget cue induces a change in internal context and causes context-dependent forgetting of the studied material (L. Sahakyan & C. A Kelley, 2002). The authors compared directed forgetting and context-dependent forgetting by examining whether, like a forget cue, a change in internal context needs subsequent learning of new material to be effective. Participants studied an item list and, after study, received a remember cue or a forget cue or their internal context was changed through an imagination task. In each condition, half the participants learned a second list, and the other half fulfilled an unrelated distractor task. Both the forget cue and the change in internal context induced forgetting of the first list only when learning of the second list was interpolated. These results suggest that postcue encoding of new material is crucial for both directed forgetting and (some forms of) context-dependent forgetting.