Resolving Task Rule Incongruence During Task Switching by Competitor Rule Suppression
Resolving Task Rule Incongruence During Task Switching by Competitor Rule Suppression
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DOI：
10.1037/a0019761
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发表时间：
2010-07-01
影响因子：
2.6
通讯作者：
Dimov, Eduard
中科院分区：
文献类型：
--
作者：
Meiran, Nachshon;Hsieh, Shulan;Dimov, Eduard
任务切换要求保持执行给定任务集的任何任务的准备状态。然而，当任务切换时，准备执行现在不相关的任务会产生干扰，如任务规则不一致效应所示。克服这种干扰需要微调的抑制，这只会对任务准备造成最小的损害。在包含2个物体分类任务和2个位置分类任务的实验中，作者发现产生反应冲突的无关任务规则被抑制。在随后的试验中，当竞争规则变得相关时，这种竞争规则抑制(CRS)被视为响应减慢。CRS被显示为在特定规则上运行，而不影响相似规则。CRS和后向抑制是另一种抑制现象，它们对反应时产生相加效应，表明它们是相互独立的。讨论了对当前任务转换的形式化理论以及冲突监控理论的启示。
Task switching requires maintaining readiness to execute any task of a given set of tasks. However, when tasks switch, the readiness to execute the now-irrelevant task generates interference, as seen in the task rule incongruence effect. Overcoming such interference requires fine-tuned inhibition that impairs task readiness only minimally. In an experiment involving 2 object classification tasks and 2 location classification tasks, the authors show that irrelevant task rules that generate response conflicts are inhibited. This competitor rule suppression (CRS) is seen in response slowing in subsequent trials, when the competing rules become relevant. CRS is shown to operate on specific rules without affecting similar rules. CRS and backward inhibition, which is another inhibitory phenomenon, produced additive effects on reaction time, suggesting their mutual independence. Implications for current formal theories of task switching as well as for conflict monitoring theories are discussed.