Task-unrelated thought (TUT), commonly referred to as mind wandering, is a mental state where a person’s attention moves away from the task-at-hand. This state is extremely common, yet not much is known about how to measure it, especially during dyadic interactions. We thus built a model to detect when a person experiences TUTs while talking to another person through a computer-mediated conversation, using their keystroke patterns. The best model was able to differentiate between task-unrelated thoughts and task-related thoughts with a kappa of 0.363, using features extracted from a 15 second window. We also present a feature analysis to provide additional insights into how various typing behaviors can be linked to our ongoing mental states.

与任务无关的想法 (TUT)，通常称为走神，是一种人的注意力从手头的任务上移开的精神状态。这种状态非常普遍，但关于如何测量它知之甚少，尤其是在二元相互作用期间。因此，我们建立了一个模型来检测一个人在通过计算机介导的对话与另一个人交谈时使用他们的击键模式时何时遇到 TUT。最佳模型能够使用从 15 秒窗口中提取的特征，以 0.363 的 kappa 区分与任务无关的想法和与任务相关的想法。我们还提供了一个特征分析，以提供更多关于各种打字行为如何与我们持续的精神状态相关联的见解。