Dynamic resource allocation in spatial working memory during full and partial report tasks.
Dynamic resource allocation in spatial working memory during full and partial report tasks.
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DOI：
10.1167/jov.23.2.10
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发表时间：
2023-02-01
影响因子：
1.8
通讯作者：
中科院分区：
文献类型：
--
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序列位置效应在工作记忆文献中有很好的记载。依赖于二元反应的空间短时记忆研究;完整报告任务倾向于报告比近因效应更强的首因效应。相比之下，利用连续反应、部分报告任务的研究报告的近因效应比首因效应更强。本研究探讨了这样一种观点，即使用完全和部分连续反应任务探测空间工作记忆会在空间序列中产生不同的视觉空间工作记忆资源分布，因此，解释了文献中相互矛盾的结果。实验1证明，当用完整报告任务探索记忆时，观察到了首因效应。实验2在控制眼球运动的同时证实了这一发现。关键的是，实验3表明，从一个完整的部分报告任务的切换取消了首因效应，并产生了近因效应，与视空间工作记忆中的资源分配取决于所需的回忆类型的想法一致。有人认为，在整个报告任务中的首因效应产生的噪音的积累所造成的多个空间定向的行动在回忆过程中，而近因效应在部分报告任务反映了预分配的资源时，预期的项目是不存在的重新分配。这些数据表明，这是可能的，以调和明显矛盾的结果在空间工作记忆的资源理论和考虑如何探索记忆的重要性时，通过空间工作记忆的资源理论的透镜解释行为数据。
Serial position effects are well-documented in working memory literature. Studies of spatial short-term memory that rely on binary response; full report tasks tend to report stronger primacy than recency effects. In contrast, studies that utilize a continuous response, partial report task report stronger recency than primacy effects. The current study explored the idea that probing spatial working memory using full and partial continuous response tasks would produce different distributions of visuospatial working memory resources across spatial sequences and, therefore, explain the conflicting results in the literature. Experiment 1 demonstrated that primacy effects were observed when memory was probed with a full report task. Experiment 2 confirmed this finding while controlling eye movements. Critically, Experiment 3 demonstrated that switching from a full to a partial report task abolished the primacy effect and produced a recency effect, consistent with the idea that the distribution of resources in visuospatial working memory depends on the type of recall required. It is argued that the primacy effect in the whole report task arose from the accumulation of noise caused by the execution of multiple spatially directed actions during recall, whereas the recency effect in the partial report task reflects the redistribution of preallocated resources when an anticipated item is not presented. These data show that it is possible to reconcile apparently contradictory findings within the resource theory of spatial working memory and the importance of considering how memory is probed when interpreting behavioral data through the lens of resource theories of spatial working memory.