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.
Follow us. While anxiety is the result of a complex interplay of social, biological, and psychological factors, hormonal changes are often the root cause of anxiety during menopause. Because of fluctuating estrogen levels, a menopausal woman may experience marked differences in the way she feels.