When and How Are Spatial Perceptions Scaled?
When and How Are Spatial Perceptions Scaled?
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DOI：
10.1037/a0019947
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发表时间：
2010-10-01
影响因子：
2.1
通讯作者：
Epstein, William
中科院分区：
文献类型：
--
作者：
Witt, Jessica K.;Proffitt, Dennis R.;Epstein, William
这项研究旨在测试两种感知方式的预测。根据大多数传统的描述，人们被认为是以任意的、未指明的单位为尺度的通用空间感知。相反，特定动作的方法提出，光流和眼球运动调节中固有的角度信息被重新调整，并转换为与预期动作相关的单位。例如，许多研究表明，距离目标的表观距离取决于步行所需的努力程度。这类研究可以用传统的说法来解释，即行走努力的实验操作并不影响知觉本身，而是影响知觉后的反应过程。目前的研究旨在评估特定动作对距离知觉的影响何时以及如何产生影响。结果支持了特定于行动的说法。
This research was designed to test the predictions of 2 approaches to perception. By most traditional accounts, people are thought to derive general-purpose spatial perceptions that are scaled in arbitrary, unspecified units. In contrast, action-specific approaches propose that the angular information inherent in optic flow and ocular motor adjustments is rescaled and transformed into units related to intended actions. A number of studies have shown, for example, that the apparent distance to targets is scaled by the effort required to walk the extent. Such studies can be accommodated by the traditional account by asserting that the experimental manipulations of walking effort influenced not perception itself, but rather postperceptual response processes. The current studies were designed to assess when and how action-specific influences on distance perception have their effects. The results supported the action-specific account.