Instructor: John Williams. The amygdala is a section of the brain that is responsible for detecting fear and preparing for emergency events. This article discusses the amygdala, its functions, and its role in our perception of fear and other emotions.ear and the Amygdala. It is important to state at this point that the amygdalae are most functional in immediate fear situations. Whenever our senses detect a change in our surroundings that could be dangerous, the amygdalae are responsible for preparing the body for escape or defense.