旷场实验（OF，Open Field Test）是一种用于评估小鼠或大鼠活动水平、探索行为和焦虑状态的实验。在实验中，动物被放置在一个开放的、通常是方形的区域中，记录其在新环境中的运动和行为。通常，动物在新环境中的活跃性、探索性行为和对周围的焦虑反应会被观察和分析。旷场实验广泛用于研究行为学、神经药理学和焦虑症状模型，为药物筛选和神经生物学研究提供了一种简便而有效的方法。

The open field test (OF, Open Field Test) is an experiment used to evaluate the activity level, exploratory behavior and anxiety state of mice or rats. In experiments, animals are placed in an open, usually square area, and their movements and behavior in the new environment are recorded. Typically, an animal's activity in a new environment, exploratory behavior, and anxious response to its surroundings are observed and analyzed. Open field experiments are widely used to study behavioral, neuropharmacological and anxiety symptom models, providing a simple and effective method for drug screening and neurobiological research.