Abstract

Participants attempted to center a cursor on a video display of a winding roadway with a rate control system. Fourier analysis of their steering movements in response to sinusoidal perturbations of the roadway revealed how much attention they allocated to different roadway preview locations. We compared a full 1.0 s of preview with preview restricted to a narrow slit around 0.3 s or 0.6 s. Participants were able to flexibly shift their attention to either slit. However, they performed better in terms of root-mean-squared error, velocity error, and acceleration error with the fuller view. They concentrated their attention over a range from 0.1 s to 0.3 s of preview in a manner qualitatively consistent with Miller’s optimal control model.

摘要

参与者试图通过速率控制系统将光标置于蜿蜒道路的视频显示的中心。对他们响应道路正弦扰动的转向运动的傅立叶分析揭示了他们分配给不同道路预览位置的注意力。我们将完整的 1.0 s 预览与仅限于 0.3 s 或 0.6 s 左右的窄缝的预览进行了比较。参与者能够灵活地将注意力转移到任一狭缝上。然而，在更全面的情况下，它们在均方根误差、速度误差和加速度误差方面表现更好。他们将注意力集中在 0.1 秒到 0.3 秒的预览范围内，其方式与米勒的最优控制模型定性一致。