Visual working memory for line orientations and face identities.
Visual working memory for line orientations and face identities.
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DOI：
10.3758/pp.70.8.1581
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发表时间：
2008-11
期刊：
影响因子：
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通讯作者：
Makovski T
中科院分区：
文献类型：
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作者：
Jiang YV;Shim WM;Makovski T
先前的研究表明，对于更复杂的物体，我们可以在视觉工作记忆中主动保存的物体数量更少。然而，复杂对象不仅更复杂，而且通常与用作测试探针的其他复杂对象更相似。为了区分复杂性的影响和相似性的影响，我们在多个记忆测试相似性级别上测量了复杂和简单对象延迟 1 秒后的视觉记忆。当内存负载为 1 个对象时，当面部沿着变形连续体以 10% 的步长变化并且线的方向以 5° 的步长变化时，面部（复杂属性）的记忆准确度与线方向（简单属性）相似。性能随着内存负载的增加和内存与测试的相似性的增加而下降。值得注意的是，当记忆负载为 3 或 4 个物体时，在类似的变化步骤下，面部记忆优于方向记忆。当将直线方向的记忆与倒立面的记忆进行比较时，这些结果仍然成立。我们得出的结论是，复杂的物体并不总是比简单的物体更快地耗尽视觉记忆。
Previous studies have shown that the number of objects we can actively hold in visual working memory is smaller for more complex objects. However, complex objects are not just more complex but are often more similar to other complex objects used as test probes. To separate effects of complexity from effects of similarity, we measured visual memory following a 1s delay for complex and simple objects at several levels of memory-to-test similarity. When memory load was 1 object, memory accuracy for a face (a complex attribute) was similar to a line orientation (a simple attribute) when the face changed in steps of 10% along a morphing continuum and the line changed in steps of 5° in orientation. Performance declined with increasing memory load and increasing memory-to-test similarity. Remarkably, when memory load was 3 or 4 objects, face memory was better than orientation memory at similar changed steps. These results held when comparing memory for line orientations with that for inverted faces. We conclude that complex objects do not always exhaust visual memory more quickly than simple objects do.