Mouse-tracking facilitates exploration of the mental processes underlying decision-making. As the cognitive system works to settle on a decision, response competition manifests in the motor movements of the hand, bringing the mouse relatively closer to one alternative versus the other. Many metrics provide insight into decision-making processes by indexing the shape or complexity of the mouse trajectory. Lacking, however, is a metric that estimates the point in time when a participant begins to correctly categorize a stimulus. We rectify this absence by introducing a metric we refer to as time of initiating correct categorization (TICC), which is the point in time when people began moving relatively closer to the selected target relative to the distractor. We briefly review existing approaches to measuring time in mouse-tracking before describing the TICC and demonstrating its utility in three data sets.

鼠标跟踪有助于探索决策背后的心理过程。当认知系统努力做出决定时，反应竞争体现在手部的运动中，使鼠标相对于另一种选择更接近一种选择。许多指标通过索引鼠标轨迹的形状或复杂性来提供对决策过程的洞察力。然而，缺乏是一种衡量参与者开始正确分类刺激的时间点的指标。我们通过引入我们称为启动正确分类的时间的度量来纠正这种缺失（TICC），这是人们开始相对于干扰物相对靠近所选目标的时间点。在描述 TICC 并在三个数据集中展示其实用性之前，我们简要回顾了测量鼠标跟踪时间的现有方法。