Spatial context learning survives interference from working memory load.

Spatial context learning survives interference from working memory load.
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DOI:
10.1037/a0020558
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发表时间:
2010-12
影响因子:
2.1
通讯作者:
Jiang, Yuhong V.
Jiang, Yuhong V.
中科院分区:
心理学3区
文献类型:
--
作者:
Vickery, Timothy J.;Sussman, Rachel S.;Jiang, Yuhong V.

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人类视觉系统不断面临大量信息,只有其中的一小部分可以被完整详细地处理。注意力和内隐学习是优化视觉的两个重要机制。这项研究探讨了这两种机制之间的关系。具体来说,我们要问:空间上下文的内隐学习是否会受到用于不相关任务的工作记忆负载量的影响?我们在视觉搜索任务中测试了观察者,其中搜索显示偶尔会重复。观察者搜索重复显示的速度比搜索不重复显示的速度更快,这显示出上下文提示。我们发现,上下文提示的大小不受观察者是否在单一注意力下学习重复显示或使用工作记忆操作分散注意力的影响。当工作记忆由颜色、点图案、单个点位置或多个潜在目标加载时,这些结果仍然有效。我们的结论是,空间情境学习对于限制注意力和工作记忆可用性的操作干扰具有鲁棒性。
The human visual system is constantly confronted with an overwhelming amount of information, only a subset of which can be processed in complete detail. Attention and implicit learning are two important mechanisms that optimize vision. This study addresses the relationship between these two mechanisms. Specifically we ask: Is implicit learning of spatial context affected by the amount of working memory load devoted to an irrelevant task? We tested observers in visual search tasks where search displays occasionally repeated. Observers became faster searching repeated displays than unrepeated ones, showing contextual cueing. We found that the size of contextual cueing was unaffected by whether observers learned repeated displays under unitary attention or when their attention was divided using working memory manipulations. These results held when working memory was loaded by colors, dot patterns, individual dot locations, or multiple potential targets. We conclude that spatial context learning is robust to interference from manipulations that limit the availability of attention and working memory.
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