Rajsic Jason, Sun Sol Z, Huxtable Lauren, Pratt Jay, Ferber Susanne
Department of Psychology, University of Toronto, 100 St. George Street, Toronto, ON, M5S 3G3, Canada.
Rotman Research Institute, Baycrest, Toronto, ON, Canada.
Psychon Bull Rev. 2016 Dec;23(6):1787-1793. doi: 10.3758/s13423-016-1034-5.
Attentional control is thought to play a critical role in determining the amount of information that can be stored and retrieved from visual working memory (VWM). We tested whether and how task-irrelevant feature-based salience, known to affect the control of visual attention, affects VWM performance. Our results show that features of a task-irrelevant color singleton are more likely to be recalled from VWM than non-singleton items and that this increased memorability comes at a cost to the other items in the display. Furthermore, the singleton effect in VWM was negatively correlated with an individual's baseline VWM capacity. Taken together, these results suggest that individual differences in VWM storage capacity may be partially attributable to the ability to ignore differences in task-irrelevant physical salience.
注意力控制被认为在决定可从视觉工作记忆（VWM）中存储和检索的信息量方面起着关键作用。我们测试了已知会影响视觉注意力控制的与任务无关的基于特征的显著性是否以及如何影响VWM表现。我们的结果表明，与非单独项目相比，与任务无关的颜色单独项目的特征更有可能从VWM中被回忆起来，并且这种增加的记忆性是以牺牲显示中的其他项目为代价的。此外，VWM中的单独项目效应与个体的基线VWM容量呈负相关。综合来看，这些结果表明，VWM存储容量的个体差异可能部分归因于忽略与任务无关的物理显著性差异的能力。
