Preparatory adjustment of cognitive control in the task switching paradigm
Preparatory adjustment of cognitive control in the task switching paradigm
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DOI：
10.3758/bf03193853
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发表时间：
2006-04-01
影响因子：
3.5
通讯作者：
Haider, Hilde
中科院分区：
文献类型：
--
作者：
Dreisbach, Gesine;Haider, Hilde
在这篇文章中，作者调查的假设，准备，而认知任务之间的切换是动态调整，以当前的任务需求。将高移位块（75%移位）中的性能与高重复块（75%重复）中的性能进行比较。这种概率信息要么在一个块的开始（全局条件），要么在每次试验之前通过特定的概率线索（局部条件）给出。作者报告说，在高移位块中，特别是当提供特定的概率线索时，有很强的准备效应（激活可能的任务和抑制不可能的任务）。然而，在高重复的区块中，准备效果不太明显。结果支持的假设，准备动态调整预期的任务要求。
In this article, the authors investigate the assumption that preparation while switching between cognitive tasks is dynamically adjusted to the current task demands. Performance in high-shift blocks (75% shifts) was compared with performance in high-repetition blocks (75% repetitions). This probability information was given either at the beginning of a block (global condition) or by specific probability cues before every trial (local condition). The authors report strong preparation effects (activation of the probable task and inhibition of the improbable task) in high-shift blocks, especially when specific probability cues were provided. In high-repetition blocks, however, the preparation effects were less pronounced. The results support the assumption that preparation is dynantically adjusted to the expected task requirements.