Department of Psychology, University of California, Riverside, CA 92521, United States.
Accid Anal Prev. 2013 Jan;50:926-33. doi: 10.1016/j.aap.2012.07.013. Epub 2012 Aug 14.
In the current study we examined age-related differences in the detection of collision events on a curved trajectory. Observers were presented with displays simulating an approaching object moving at a constant speed that was either on a collision or a non-collision path. The object disappeared before reaching the observer, and the task was to determine whether the object was on a collision path. In a series of three experiments, we manipulated the motion trajectory of the object (linear or curved), time-to-contact (TTC), and radius of the curvature. We found decreased performance with older as compared to younger observers when the object was traveling on a linear trajectory at long TTC. However, there was no age-related decrement in detecting a collision when the object was traveling on a curved trajectory. These results indicate a similar ability for older and younger observers in detecting collisions on a curved trajectory.
在当前的研究中，我们研究了在检测曲线路径上的碰撞事件时年龄相关的差异。观察者被呈现出模拟以恒定速度移动的接近物体的显示，该物体要么在碰撞路径上，要么在非碰撞路径上。物体在到达观察者之前消失，任务是确定物体是否在碰撞路径上。在三个实验系列中，我们操纵了物体的运动轨迹（线性或曲线）、时距（TTC）和曲率半径。我们发现，当物体在线性轨迹上以长 TTC 行驶时，与年轻观察者相比，老年观察者的表现下降。然而，当物体在曲线路径上行驶时，在检测碰撞方面并没有与年龄相关的衰退。这些结果表明，在检测曲线路径上的碰撞时，老年和年轻观察者具有相似的能力。
