Recent studies proposed that animals compute current level of threat imminence and utilizes different defensive survival circuits according to the threat’s spatiotemporal distance and probability. The purpose of this study is to investigate how different level of threat imminence influences the anxiety-related behavior, subjective level of anxiety and bodily feeling states in humans. Subjects are placed in a virtual 2D maze (see Mobbs et al, 2009). In each trial, they will be asked to avoid predators in this environment with varying levels of threat. There are four levels of threat: 1) the safe condition without predator 2) pre-encounter condition, where the virtual predator is encaged and cannot attack the subject. 3) the post-encounter threat, where the cage is removed, allowing the virtual predator to attack the subject at any time, thus increasing the anticipation of danger and preparation for action, and 4) the circa-strike condition, where the subject is chased by the virtual predator. Subjects will obtain 10 points by finishing each trial while they will lose large amount of point (-30) by getting caught which is informed to subjects. In addition to predator, there is an ambiguous threat represented by a flashing yellow square that appears in random location at random time during the task. Moving close to this yellow square will cause subjects to lose points whose amount is not informed to subjects, thus ambiguous. In this experiment, we will test 1) behavior 2) subjective level of anxiety and 3) subjective bodily states while playing in virtual environments with different levels of threat. To examine subjective level of anxiety, we will ask subjects to rate their anxiety before starting the trial (threat level of that trial will be informed before rating anxiety). Subjective bodily state will be assessed by asking subjects to mark their current bodily state using the EmBODY toolbox (Nummenmaa et al., 2014) by coloring avatars. After finishing main experiment, subjects will also be asked to mark subjective bodily state when they feel specific emotions (Anger, Anxiety, Fear, Happiness, Depression, Safe, Sadness, Panic, Surprise and Neutral) to test similarity between bodily state to these emotions and bodily state during the task. Finally, subjects will perform a post-experimental survey including psychological scales related to anxiety, approach-avoidance tendency and interoception.