Chum Marvin, Bekkering Harold, Dodd Michael D, Pratt Jay
University of Toronto, Toronto, Ontario, Canada.
Psychon Bull Rev. 2007 Dec;14(6):1189-93. doi: 10.3758/bf03193111.
The spatial working memory system constantly updates spatial representations and many studies have focused on the underlying principles of the encoding and maintenance of visual information. Here we investigated the question of how the production of actions influences spatial working memory. Participants were given a task that required concurrent maintenance of two spatial arrays, one encoded by visual observation accompanied with pointing movements, the other by only visual observation. Across two experiments, movement during encoding was found to facilitate recognition of spatial arrays in a load-dependent manner. The results suggest an action-based encoding principle within the working memory system, and possible underlying action-related mechanisms are discussed.
空间工作记忆系统不断更新空间表征，许多研究聚焦于视觉信息编码与维持的潜在原理。在此，我们研究了动作产生如何影响空间工作记忆这一问题。参与者被给予一项任务，要求同时维持两个空间阵列，一个通过视觉观察并伴有指向动作进行编码，另一个仅通过视觉观察进行编码。在两个实验中，发现编码过程中的动作以负载依赖的方式促进了空间阵列的识别。结果表明工作记忆系统中存在基于动作的编码原则，并讨论了可能的潜在动作相关机制。
