Sun Nana, Han Han, Lyu Peijin, Song Ruijun
School of Psychology, Shandong Normal University, Jinan, China.
Department of Applied Psychology, Lyuliang University, Lyuliang, China.
Front Psychol. 2025 Jun 9;16:1548069. doi: 10.3389/fpsyg.2025.1548069. eCollection 2025.
Past research has suggested that binding retention requires more object-based attention than feature retention in visual working memory (VWM). Long-term memory (LTM) is also believed to contribute to VWM.
We investigated whether LTM reduces the object-based attention required to maintain bindings.
Participants were familiarized with specific items prior to the VWM task to establish LTM representations, and we included a Duncan task in the maintenance phase of the VWM task to consume object-based attention.
Results revealed that consuming object-based attention disproportionately impaired bindings compared to features for unfamiliar objects but not for familiar ones (Experiment 1). This effect could not be attributed to differences in memory set sizes between the familiar-objects condition and the unfamiliar-objects condition (Experiment 2) or to differences among participants between the two levels of the LTM condition (Experiment 3).
These findings demonstrate that LTM availability modulates the role of object-based attention in retaining bindings in VWM, with bindings requiring more object-based attention than individual features for unfamiliar objects but not for familiar objects.
过去的研究表明，在视觉工作记忆（VWM）中，绑定保持比特征保持需要更多基于客体的注意。长期记忆（LTM）也被认为对VWM有贡献。
我们研究了LTM是否减少了维持绑定所需的基于客体的注意。
在VWM任务之前让参与者熟悉特定项目以建立LTM表征，并且我们在VWM任务的维持阶段纳入了一个邓肯任务以消耗基于客体的注意。
结果显示，与特征相比，消耗基于客体的注意对不熟悉客体的绑定产生的损害更大，而对熟悉客体则不然（实验1）。这种效应不能归因于熟悉客体条件和不熟悉客体条件之间记忆集大小的差异（实验2），也不能归因于LTM条件两个水平之间参与者的差异（实验3）。
这些发现表明，LTM的可用性调节了基于客体的注意在VWM中保持绑定的作用，对于不熟悉客体，绑定比单个特征需要更多基于客体的注意，而对于熟悉客体则不然。
