Department of Cognitive Science, Rensselaer Polytechnic Institute, Troy, NY 12180-3590, United States.
Hum Mov Sci. 2011 Jun;30(3):504-33. doi: 10.1016/j.humov.2010.07.016. Epub 2011 Feb 18.
Many locomotor tasks require actors to choose among different categories of action, such as when deciding whether to cross the street in front of an approaching vehicle or wait until it passes. In such cases, the actor's locomotor capabilities partly determine which actions are possible, and therefore must be taken into account. The present study was designed to re-evaluate the claim that people do not know their locomotor capabilities until they begin moving because they rely entirely on information that is picked up "on the fly" (Oudejans, Michaels, Bakker, & Dolné, 1996). Three experiments were conducted in which participants judged while stationary or moving whether it was within their capabilities to catch a fly ball or pass through a shrinking gap. The main finding was that judgments were equally accurate regardless of whether participants were stationary or allowed to move for a brief period. We conclude that stationary and moving actors know their locomotor capabilities equally well, and that actors do not rely entirely on information that is picked up on the fly.
许多运动任务要求参与者在不同的动作类别之间做出选择，例如，当决定是否在驶近的车辆前穿过街道，还是等待车辆通过。在这种情况下，参与者的运动能力在一定程度上决定了哪些动作是可行的，因此必须加以考虑。本研究旨在重新评估人们在开始行动之前并不知道自己的运动能力的说法，因为他们完全依赖于“临时”获取的信息（Oudejans、Michaels、Bakker 和 Dolné，1996）。进行了三项实验，参与者在静止或移动时判断自己是否有能力接住飞球或穿过缩小的缝隙。主要发现是，无论参与者是静止的还是被允许短暂移动，判断的准确性是相等的。我们的结论是，静止和移动的参与者同样清楚自己的运动能力，而且参与者并不完全依赖于临时获取的信息。
