Cognitive control in context: Working memory capacity and proactive control
Cognitive control in context: Working memory capacity and proactive control
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DOI：
10.1016/j.actpsy.2013.10.010
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发表时间：
2014-01-01
影响因子：
1.8
通讯作者：
Redick, Thomas S.
中科院分区：
文献类型：
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作者：
Redick, Thomas S.
工作记忆对于维持关键信息处于活跃状态以指导未来的行为非常重要。工作记忆容量的执行注意力理论（WMC；Engle & Kane，2004）认为，当刺激与竞争反应相关时，目标维持对于反应选择很重要。 Braver、Burgess 和 Gray (2007) 将这种类型的准备活动称为主动控制。之前的 WMC 研究不允许个人使用目标信息在刺激之前准备具体的反应。当前的实验使用不同版本的线索探测任务来检查 WMC 个体差异和主动控制之间的关系。在连续性能测试的 AX 版本的三个版本中，操纵目标的比例来影响 A 提示的预测有效性和目标对 X 探针响应的优势。结果表明，只有当特定的探测可能发生时，高 WMC 个体才会使用提示信息提前准备反应。相比之下，低 WMC 个体的表现较少依赖于提示，而更依赖于整体响应频率。结果表明，WMC 的个体差异与主动控制和预期有关，对于将认知转化为行动很重要。 (C) 2013 Elsevier B.V. 保留所有权利。
Working memory is important for maintaining critical information in an active state to guide future behavior. The executive-attention theory of working memory capacity (WMC; Engle & Kane, 2004) argues that goal maintenance is important for response selection when stimuli are associated with competing responses. Braver, Burgess, and Gray (2007) have labeled this type of preparatory activity proactive control. Previous WMC studies have not allowed individuals to use goal information to prepare a specific response in advance of the stimulus. The current experiment used different versions of a cue-probe task to examine the relationship between individual differences in WMC and proactive control. Across three versions of the AX version of the Continuous Performance Test, the proportion of targets was manipulated to affect both the predictive validity of the A cue and the prepotency of the target response to X probes. The results indicated that the high-WMC individuals used the cue information to prepare responses in advance only when a specific probe was likely to occur. In contrast, the performance of the low-WMC individuals was less dependent upon the cue and more contingent upon overall response frequencies. The results indicate that individual differences in WMC are related to proactive control and anticipation, and important for translating cognition into action. (C) 2013 Elsevier B.V. All rights reserved.