Start your free trial today and get unlimited access to America's largest dictionary, with: 1  More than 250,000 words that aren't in our free dictionary. 2  Expanded definitions, etymologies, and usage notes. 3  Advanced search features. 4  Ad free!
This small nucleus contains almost half of all the brain neurons that use norepinephrine as a neurotransmitter. The locus coeruleus also projects its axons to those parts of the brain that may be associated with panic disorders (the amygdala, hippocampus, septum, cortex, brainstem, reticular formation, etc). Stimulating an animal's locus coeruleus, like stimulating its amygdala, produces anxiety behaviours.
Hormone activity is responsible for a variety of physical and psychological reactions, including anxiety. In addition, your anxiety and stress can actually cause hormonal imbalances, because stress itself can affect hormone secretion. Learn more about your anxiety by taking my free 7 minute anxiety test now.