%0 Journal Article
%T 视觉工作记忆存储的表征单位<br>The Representation Unit of Visual Working Memory
%A 刘茹邑
%A 郭利静
%A 程钰欣
%A 李倩
%A 叶超雄
%J Advances in Psychology
%P 868-875
%@ 2160-7281
%D 2022
%I Hans Publishing
%R 10.12677/AP.2022.123103
%X 视觉工作记忆被视为容量有限的储存系统，人们可以灵活处理其中表征以完成任务。有关视觉工作记忆容量的讨论首先要明确其表征单位，前人利用延迟匹配范式和回忆范式，研究不同维度特征和同一维度不同水平特征在视觉工作记忆中的储存形式，支持整体表征和特征表征的学者各执一词——基于客体的表征假设认为不同特征绑定在同一客体上，且相比记忆单特征对象，记忆相同数量的多特征对象并无额外代价；而基于特征的表征假设认为不同维度的特征独立储存，有各自的容量限制。此外，作为目标驱动的记忆系统，视觉工作记忆所受到的实验设计和任务要求的影响同样不可忽视。本文通过梳理前人对表征单位的争论，试图得到统一两种假设的理论解释。这有助于我们加深对视觉工作记忆容量的理解，并在探索相关问题时考虑到任务要求的影响，完善实验设计。<br />
The visual working memory is a limited storage system in which people could flexibly process the representations to complete the task. Among studies on the capacity of visual working memory, the representation unit is a prior subject. Previous research employs the change-detection paradigm and the recall paradigm to explore the nature of representations when features of diverse dimensions and different-level features of the same dimension are stored in the visual working memory. These studies elicit two binary hypotheses: the object-based representation hypothesis backs that those diverse features are bound on the object and form a whole, while the feature-based representation hypothesis supports that independent feature representations have a specific capacity limitation on each dimension. Besides, as a target-drive memory system, the visual working memory receives an undeniable impact from the experiment process and the task demand. By comparing and concluding previous debates on the representation unit, we attempt to reach a united explanation of two hypotheses. This benefits our comprehension of the capacity of visual working memory. The exploration of relevant problems might consider the impact of task demand to improve the experimental design.
%K 视觉工作记忆，表征单位，任务要求<br>Visual Working Memory
%K Representation Unit
%K Task Demand
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=49613