Human-computer interaction (HCI) increasingly occurs in motion-rich environments. The ability to accurately and rapidly respond to directional visual cues is critical in these contexts. How whole-body motion and individual differences affect human perception and reaction to these directional cues is therefore a key, yet an underexplored question for HCI. This study used a 6-DOF motion platform to measure task performance on a visual direction judgment task. We analyzed performance by decomposing the complex motion into two distinct components: a task-irrelevant lateral interference component and a task-aligned directional congruency component. Results indicate that increased motion intensity lengthened reaction times. This effect was primarily driven by the lateral interference component, and this detrimental impact was disproportionately amplified for individuals with high motion sickness susceptibility. Conversely, directional congruency, where motion direction matched the visual cue, improved performance for all participants. These findings suggest that motion's impact on cognition is not monolithic, and that system design for mobile HCI can be informed by strategies that actively shape motion, such as minimizing lateral interference while maximizing directional congruency.

翻译：人机交互（HCI）日益频繁地发生在运动丰富的环境中。在这些情境中，准确、快速地对方向性视觉线索做出反应的能力至关重要。全身运动与个体差异如何影响人类对这些方向性线索的感知与反应，因此成为人机交互领域一个关键但尚未被充分探索的问题。本研究使用一个六自由度运动平台，测量了被试在视觉方向判断任务上的表现。我们通过将复杂运动分解为两个不同的组成部分来分析性能：一个与任务无关的横向干扰成分，以及一个与任务对齐的方向一致性成分。结果表明，运动强度的增加会延长反应时间。这种效应主要由横向干扰成分驱动，并且对于运动病易感性高的个体，这种不利影响被不成比例地放大。相反，当运动方向与视觉线索匹配时（方向一致性），所有参与者的表现均得到改善。这些发现表明，运动对认知的影响并非单一整体，移动人机交互的系统设计可以参考主动塑造运动的策略，例如最小化横向干扰，同时最大化方向一致性。