Estimation of Lifted Weight and Produced Effort through Perception of Point-Light Display
Estimation of Lifted Weight and Produced Effort through Perception of Point-Light Display
复制标题
通过感知点光显示来估计举起的重量和产生的作用力
作者：
J. Shim;L. Carlton;Jitae Kim
它已经表明，人类观察者可以估计一个箱子的重量，从观察点光显示的提升运动。我们要求观察者报告箱子的重量和五个不同大小和力量的举重者所做的努力，以确定观察者是否能感知举重者的大小。在实验1中，5名举重运动员每人拿出5或6个重物，以随机顺序展示给14名观察员。观察者发现，估计每个举重者所产生的力量比估计箱子的实际重量误差要小。在实验2中，举重运动员被单独呈现给40名观察者，以消除观察前一次举重运动可能对估计下一次不同举重运动员的举重运动产生的任何影响。结果显示，估计重量有所改善，但估计努力没有改善。在实验3中，34名观察者被告知举重者的实际尺寸，他们对举重者重量和力量的估计都有所改善。在实验4中，观察员没有改善时，观察实践审判和估计要么只有重量或只有努力。从四个实验的结果表明，观察员更敏感的举重运动员的努力比举起的重量，观察员往往使用的升降机的速度曲线的变化时，使他们的估计。
It has been shown that human observers can estimate the weight of a box from the observation of a point-light display of a lifting motion. We asked observers to report the weight of the box and the effort produced by five lifters ranging in size and strength to determine if observers can perceive lifter size. In experiment 1, five or six weights from each of five lifters were shown to fourteen observers in a random order. Observers showed less error in estimating the amount of effort each lifter produced than in estimating the actual weight of the box. In experiment 2, the lifters were presented individually to forty observers to remove any effect observing a previous lift might have had on estimating the subsequent lift by a different lifter. The results showed an improvement in estimated weight but not in estimated effort. In experiment 3, the actual size of the lifters was given to thirty-four observers, and the estimations of both weight and effort improved. In experiment 4, observers did not improve when observing practice trials and estimating either only weight or only effort. The results from the four experiments suggest that observers are more sensitive to lifter's effort than to the weight lifted, and that observers tend to use changes in the velocity profile of the lift when making their estimates.
了解自然动力学。
DOI：
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发表时间：
1989
期刊：
Journal of experimental psychology. Human perception and performance
影响因子：
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作者：
Proffitt,DR;Gilden,DL
通讯作者：
Gilden,DL