APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -The fear response starts in a region of the brain called the amygdala. This almond-shaped set of nuclei in the temporal lobe of the brain is dedicated to detecting the emotional salience of the stimuli – how much something stands out to us.

Detailed explanation-2: -Amygdala. The amygdala helps coordinate responses to things in your environment, especially those that trigger an emotional response. This structure plays an important role in fear and anger.

Detailed explanation-3: -Most prominently, the amygdala receives dense input from the prefrontal cortex, especially from the anterior cingulate and orbitofrontal cortices. The amygdala also receives prominent input from the insula and from the hippocampus and rhinal (olfactory) cortices.

Detailed explanation-4: -When someone experiences a stressful event, the amygdala, an area of the brain that contributes to emotional processing, sends a distress signal to the hypothalamus.