Heightened Conflict in Cue-Target Translation Increases Backward Inhibition in Set Switching
Heightened Conflict in Cue-Target Translation Increases Backward Inhibition in Set Switching
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DOI：
10.1037/a0019129
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发表时间：
2010-07-01
影响因子：
2.6
通讯作者：
Houghton, George
中科院分区：
文献类型：
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作者：
Grange, James A.;Houghton, George
后向抑制 (BI) 是当个体在 1 次（相对于超过 1 次）干预试验后返回任务时发生的绩效成本，它可能反映了切换过程中任务集组件的抑制。在 3 个实验中，我们支持了这样的理论：抑制可以针对任务的基于提示的准备阶段。参与者执行了一项提示目标定位任务，该任务之前已被证明可以产生 BI。在实验 I 中，尽管提示、目标和响应集保持不变，但在实验中途重新分配任意提示-目标配对使 BI 的大小增加了一倍。在实验 2 中，我们控制了条件顺序的影响或提示含义的简单变化。在实验 3 中，我们证明了效果取决于相同提示和目标集的成员的重新配对。结果归因于当先前学习的线索-目标映射被重新映射时，线索-目标翻译期间的冲突加剧（因此抑制更大）。
Backward inhibition (BI) is a performance cost that occurs when an individual returns to a task after I (vs. more than 1) intervening trial, and it may reflect the inhibition of task-set components during switching. In 3 experiments, we support the theory that inhibition can target cue-based preparatory stages of a task. Participants performed a cued target-localization task that had been previously shown to produce BI. In Experiment I reassignment of arbitrary cue-target pairings midway through the experiment doubled the size of BI, though cue, target, and response sets remained unchanged. In Experiment 2, we controlled for effects of order of conditions or simple change of cue meaning. In Experiment 3, we demonstrated that the effect depends on re-pairing members of the same cue and target sets. The results are attributed to heightened conflict (and hence greater inhibition) during cue-target translation when a previously learned cue-target mapping is remapped.