Abstract: Early life stress (ELS) has a continued effect on adult psychopathology, but not much is known about its links to social anxiety and maladaptive habits. As such, we examined the relationship between social anxiety in young adults using the Liebowitz Social Anxiety Scale (LSAS-R) and ELS using the Early Experiences questionnaire. To study habitual behavior, we used a Weather Prediction task (WPT). Participants were presented with various combinations of visual cues, each associated with a probabilistic outcome of rain or sun. Participants then predicted an outcome using a keyboard. The probabilities of outcomes switched halfway through without participants’ knowledge. If a participant continued to choose an outcome based on the first probability, this was considered a habitual response. We predicted a significant interaction such that the effect level of anxiety has on habit responding will differ depending on the level of ELS. We expect higher habit responding among high compared to low anxiety individuals in the high ELS group, but not the low ELS group. This study expands on the link between ELS and habitual behavior, and views social anxiety through a novel lens. Authors: Kristen Lee, Liyang Zhou, Safa Rahman, Jennifer Ferrin, Isabel Enriquez, and Barbara Knowlton PhD Institution: University of California, Los Angeles