OBJECTIVES/GOALS: Normal fear learning produces avoidance behavior that promotes survival. but excessive and persistent fear after trauma can lead to development of phobias and post-traumatic stress disorder (PTSD). Our goal is to understand the mechanism and identify novel genetic targets underlying fear responses. METHODS/STUDY POPULATION: Involvement of the amygdala in fear acquisi... https://www.ngetikin.com/amazing-find-Bolia-Loop-Rug-limited-choice/