WHAT AN ACTOR MUST DO IN ORDER TO PERCEIVE THE AFFORDANCE FOR SITTING
WHAT AN ACTOR MUST DO IN ORDER TO PERCEIVE THE AFFORDANCE FOR SITTING
复制标题
DOI：
10.1207/s15326969eco0204_2
复制
发表时间：
1990-01-01
影响因子：
1.9
通讯作者：
FOX T
中科院分区：
文献类型：
--
作者：
MARK L S;BALLIETT J A;FOX T
Mark（1987）报告说，观察者通过佩戴10 cm的垫块来改变坐姿能力，在没有机会佩戴垫块练习坐姿的情况下，他们能够发现自己能够坐在的表面的最大高度（SHmax）。目前的研究试图确定观察者的SHmax发生重新调整的条件。当观察者能够在两次试验之间移动时（实验1），以及在做出判断时旋转他们的头部、向前倾斜和向侧面倾斜时（实验1-2），SHmax判断的返回很容易发生。然而，当观察条件限制了除最基本动作之外的所有动作时，他们无法返回他们的SHmax（实验3-5）。观察员在试验期间和试验之间的行为对于他们在没有戴上块时判断的准确性也至关重要。总的来说，这些发现强烈暗示观察者自己的活动对于在他们熟悉和不熟悉自己的坐姿能力的两种条件下揭示关于他们自己的SHmax的信息至关重要。实验6支持了这一结论，表明先前的实践与坐的行为是不足以使观察员重新调整自己的SHmax（块条件）或感知自己的SHmax在熟悉的情况下（无块）。
Mark (1987) reported that observers, whose sitting capabilities had been altered by having them wear 10-cm blocks, were able to discover their own maximum height of a surface that afforded sitting on (SHmax) in the absence of an opportunity to practice sitting while wearing blocks. The current investigation attempted to identify conditions under which retuning of an observer's SHmax occurred. Returning of SHmax judgments readily occurred when observers were able to locomote between trials (Experiment 1), and rotate their heads, lean forward and to the side while making their judgments (Experiments 1-2). However, they were unable to return their SHmax when the viewing conditions restricted all but the most basic actions (Experiments 3-5). Observers' actions during and between trials also were critical to the accuracy of their judgments when they did not wear the blocks. Overall, these findings strongly implicate observers' own activities as crucial for revealing information about their own SHmax under both conditions when they are and are not familiar with their own sitting capabilities. Experiment 6 bolstered this conclusion by showing that prior practice with the act of sitting was not sufficient to enable observers to retune their own SHmax (block condition) or to perceive their own SHmax under familiar circumstances (no block).