Department of Cognitive, Linguistic and Psychological Science, Brown University.
Psychol Rev. 2024 Mar;131(2):349-372. doi: 10.1037/rev0000442. Epub 2023 Sep 4.
When faced with distraction, we can focus more on goal-relevant information (targets) or focus less on goal-conflicting information (distractors). How people use cognitive control to distribute attention across targets and distractors remains unclear. We address this question by developing a novel Parametric Attentional Control Task that can "tag" participants' sensitivity to target and distractor information. We use these precise measures of attention to develop a novel process model that can explain how participants control attention toward targets and distractors. Across three experiments, we find that participants met the demands of this task by independently controlling their processing of target and distractor information, exhibiting distinct adaptations to manipulations of incentives and conflict. Whereas incentives preferentially led to target enhancement, conflict in the previous trial preferentially led to distractor suppression. These distinct drivers of control altered sensitivity to targets and distractors early in the trial, promptly followed by reactive reconfiguration toward task-appropriate feature sensitivity. To provide a process-level account of these empirical findings, we develop a novel neural network model of evidence accumulation with attractor dynamics over feature weights that reconfigure target and distractor processing. These results provide a computational account of control reconfiguration that provides new insights into how multivariate attentional signals are optimized to achieve task goals. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
当面临分心时,我们可以更加关注与目标相关的信息(目标),或者较少关注与目标冲突的信息(分心物)。人们如何利用认知控制在目标和分心物之间分配注意力仍不清楚。我们通过开发一种新颖的参数注意控制任务来解决这个问题,该任务可以“标记”参与者对目标和分心物信息的敏感性。我们使用这些精确的注意力测量来开发一种新的过程模型,该模型可以解释参与者如何控制对目标和分心物的注意力。在三个实验中,我们发现参与者通过独立控制他们对目标和分心物信息的处理来满足这个任务的要求,对激励和冲突的操纵表现出明显的适应。虽然激励优先导致目标增强,但前一次试验中的冲突优先导致分心物抑制。这些控制的不同驱动因素在试验早期改变了对目标和分心物的敏感性,随后迅速对任务适当特征敏感性进行反应性重新配置。为了提供对这些经验发现的过程级解释,我们开发了一种具有吸引力动态的新型证据积累神经网络模型,该模型对特征权重进行重新配置,从而处理目标和分心物。这些结果为控制重新配置提供了一个计算解释,为如何优化多变量注意力信号以实现任务目标提供了新的见解。(PsycInfo 数据库记录(c)2024 APA,保留所有权利)。