J Exp Psychol Hum Percept Perform. 2015 Oct;41(5):1189. doi: 10.1037/xhp0000136. Epub 2015 Aug 17.
Reports the retraction of "Selection and storage of perceptual groups is constrained by a discrete resource in working memory" by David E. Anderson, Edward K. Vogel and Edward Awh (Journal of Experimental Psychology: Human Perception and Performance, 2013[Jun], Vol 39[3], 824-835). At the request of the authors, the following article from the June 2013 issue is being retracted. (The following abstract of the original article appeared in record 2012-27552-001.) Perceptual grouping can lead observers to perceive a multielement scene as a smaller number of hierarchical units. Past work has shown that grouping enables more elements to be stored in visual working memory (WM). Although this may appear to contradict so-called discrete resource models that argue for fixed item limits in WM storage, it is also possible that grouping reduces the effective number of "items" in the display. To test this hypothesis, we examined how mnemonic resolution declined as the number of items to be stored increased. Discrete resource models predict that precision will reach a stable plateau at relatively early set sizes, because no further items can be stored once putative item limits are exceeded. Thus, we examined whether the precision by set size function was bilinear when storage was enhanced via perceptual grouping. In line with the hypothesis that each perceptual group counted as a single "item," precision still reached a clear plateau at a set size determined by the number of stored groups. Moreover, the maximum number of elements stored was doubled, and electrophysiological measures showed that selection and storage-related neural responses were the same for a single element and a multielement perceptual group. Thus, perceptual grouping allows more elements to be held in working memory while storage is still constrained by a discrete item limit. (PsycINFO Database Record
报告撤回大卫·E·安德森、爱德华·K·沃格尔和爱德华·阿夫所著的《工作记忆中的离散资源限制感知组的选择与存储》（《实验心理学杂志：人类感知与表现》，2013年6月，第39卷第3期，824 - 835页）。应作者要求，撤回2013年6月期刊中的以下文章。（原始文章的以下摘要出现在记录2012 - 27552 - 001中。）感知分组能使观察者将多元素场景感知为数量更少的层次单元。过去的研究表明，分组能使更多元素存储在视觉工作记忆（WM）中。尽管这似乎与主张工作记忆存储中项目数量固定的所谓离散资源模型相矛盾，但分组也有可能减少显示中“项目”的有效数量。为验证这一假设，我们研究了随着要存储的项目数量增加，记忆分辨率如何下降。离散资源模型预测，在相对较小的集合大小下，精度将达到稳定的平稳状态，因为一旦超过假定的项目限制，就无法再存储更多项目。因此，我们研究了通过感知分组增强存储时，精度随集合大小的函数是否为双线性。与每个感知组计为单个“项目”的假设一致，在由存储组数量决定的集合大小下，精度仍达到明显的平稳状态。此外，存储的元素最大数量增加了一倍，并且电生理测量表明，单个元素和多元素感知组的选择及与存储相关的神经反应是相同的。因此，感知分组能使更多元素保存在工作记忆中，同时存储仍受离散项目限制。（PsycINFO数据库记录）
