Vanderbilt University, Department of Psychology, 111 21st Avenue South, Nashville, TN 37203, USA.
Cognition. 2010 Oct;117(1):80-6. doi: 10.1016/j.cognition.2010.07.002. Epub 2010 Jul 24.
Investigations of multiple-object tracking aim to further our understanding of how people perform common activities such as driving in traffic. However, tracking tasks in the laboratory have overlooked a crucial component of much real-world object tracking: self-motion. We investigated the hypothesis that keeping track of one's own movement impairs the ability to keep track of other moving objects. Participants attempted to track multiple targets while either moving around the tracking area or remaining in a fixed location. Participants' tracking performance was impaired when they moved to a new location during tracking, even when they were passively moved and when they did not see a shift in viewpoint. Self-motion impaired multiple-object tracking in both an immersive virtual environment and a real-world analog, but did not interfere with a difficult non-spatial tracking task. These results suggest that people use a common mechanism to track changes both to the location of moving objects around them and to keep track of their own location.
多目标跟踪的研究旨在深入了解人们如何执行常见的活动，如在交通中驾驶。然而，实验室中的跟踪任务忽略了许多现实世界中物体跟踪的一个关键组成部分：自身运动。我们假设，跟踪自己的运动情况会损害跟踪其他移动目标的能力。参与者在跟踪区域内移动或保持固定位置时，试图跟踪多个目标。当参与者在跟踪过程中移动到新位置时，即使他们是被动移动的，并且没有看到视角的变化，他们的跟踪表现也会受到影响。自身运动不仅在沉浸式虚拟环境中，而且在真实世界的模拟环境中都损害了多目标跟踪，但并没有干扰到困难的非空间跟踪任务。这些结果表明，人们使用一种共同的机制来跟踪他们周围移动目标的位置变化和自己的位置。
