The influence of reward associations on conflict processing in the Stroop task.
The influence of reward associations on conflict processing in the Stroop task.
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DOI：
10.1016/j.cognition.2010.08.018
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发表时间：
2010-12
期刊：
影响因子：
3.4
通讯作者：
Woldorff MG
中科院分区：
文献类型：
--
作者：
Krebs RM;Boehler CN;Woldorff MG
行为任务中的表现可以通过将刺激属性与奖励相关联来促进。相反，冲突的信息是已知的，阻碍任务的性能。在这里，我们研究了奖励协会如何影响审判内处理冲突的信息，使用颜色命名Stroop任务，其中一个子集的墨水颜色（任务相关的维度）与金钱激励。我们发现，与没有潜在奖励的实验相比，颜色命名的表现得到了增强。此外，在潜在奖励试验中，如果不一致的词（任务无关维度）与奖励无关，则典型的冲突诱导的绩效下降会减弱。相反，不一致的话，语义相关的奖励预测墨水颜色干扰性能在潜在的奖励试验，甚至更是在无奖励试验，尽管语义意义是完全无关的任务。这些观察结果表明，奖励的前景增强了任务相关刺激信息的加工，而不一致的奖励相关信息在任务无关的维度会阻碍任务绩效。
Performance in a behavioral task can be facilitated by associating stimulus properties with reward. In contrast, conflicting information is known to impede task performance. Here we investigated how reward associations influence the within-trial processing of conflicting information using a color-naming Stroop task in which a subset of ink colors (task-relevant dimension) was associated with monetary incentives. We found that color-naming performance was enhanced on trials with potential reward versus those without. Moreover, in potential-reward trials, typical conflict-induced performance decrements were attenuated if the incongruent word (task-irrelevant dimension) was unrelated to reward. In contrast, incongruent words that were semantically related to reward-predicting ink colors interfered with performance in potential-reward trials and even more so in no-reward trials, despite the semantic meaning being entirely task-irrelevant. These observations imply that the prospect of reward enhances the processing of task-relevant stimulus information, whereas incongruent reward-related information in a task-irrelevant dimension can impede task performance.
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