Abstract

Multiple object tracking (MOT) and goal-directed movements are both based on attentional processes. This study focused on the instant effect of attentive tracking with respect to pointing performance. We measured the precision of pointing to the targets of an MOT task immediately after the tracking period when all the objects were still in motion, and to the precision of pointing to moving objects in the task without attentional tracking. The results demonstrated that an increase in the attentional tracking load was the primary factor that decreased pointing precision, although visual load may also contribute to this influence. We also manipulated the relationship between the number of targets and the density of the MOT display (the total number of objects displayed), which affected the MOT accuracy but not the pointing precision.

摘要

多目标跟踪 (MOT) 和目标导向运动都基于注意力过程。这项研究的重点是注意力跟踪对指向性能的即时效果。我们测量了在所有物体仍在运动的跟踪期后立即指向 MOT 任务目标的精度，以及在没有注意力跟踪的情况下指向任务中运动物体的精度。结果表明，注意力跟踪负载的增加是降低指向精度的主要因素，尽管视觉负载也可能导致这种影响。我们还操纵了目标数量与 MOT 显示密度（显示的对象总数）之间的关系，这会影响 MOT 精度，但不会影响指向精度。