Visual memory and motor planning in a natural task
Visual memory and motor planning in a natural task
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DOI：
10.1167/3.1.6
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发表时间：
2003-01-01
影响因子：
1.8
通讯作者：
Pelz, JB
中科院分区：
文献类型：
--
作者：
Hayhoe, MM;Shrivastava, A;Pelz, JB
本文通过测量受试者做三明治时的眼睛和手的运动来研究自然视力的时间依赖性。改变盲目的现象表明，这些时间依赖可能是有限的。我们的观察在很大程度上与此一致，这表明许多自然的视觉可以通过“及时”的表现来实现。然而，我们也观察到性能的几个方面，指出需要在不同的注视下建立场景的空间结构的一些表示。眼手协调和注视序列的模式表明，需要在几秒钟内计划和协调运动。这种规划必须在与眼睛位置无关的坐标系中进行，因此需要在不同注视下构建的场景中空间结构的表示。
This paper investigates the temporal dependencies of natural vision by measuring eye and hand movements while subjects made a sandwich. The phenomenon of change blindness suggests these temporal dependencies might be limited. Our observations are largely consistent with this, suggesting that much natural vision can be accomplished with "just-in-time" representations. However, we also observe several aspects of performance that point to the need for some representation of the spatial structure of the scene that is built up over different fixations. Patterns of eye-hand coordination and fixation sequences suggest the need for planning and coordinating movements over a period of a few seconds. This planning must be in a coordinate frame that is independent of eye position, and thus requires a representation of the spatial structure in a scene that is built up over different fixations.