The amygdala is a part of the brain important for emotional responses, especially fear. It is thought to be important in anxiety disorders. A new UC Davis study reveals new cell types in different ...

Have you ever wondered why you jump when you’re startled? Maybe you wonder why you have a harder time handling stress and anxiety than your friends and family do. Part of the reason might lie in your ...

A new study found that people who are politically conservative have a slightly larger amygdala than progressives. The results suggest that the relationship between brain anatomy and political ideology ...

One of the characteristics of depression is a tendency to perceive sensory stimuli and everyday situations in an excessively negative way. But the mechanisms underpinning this 'negativity bias,' which ...

The trauma of posttraumatic stress disorder (PTSD) is both personal and social. The condition affects approximately 3.5 percent of U.S. adults every year and the prevalence of the condition in ...

The amygdala - a brain structure enlarged in two-year-old children diagnosed with autism spectrum disorder (ASD) - begins its accelerated growth between 6 and 12 months of age, suggests a study funded ...