Extraverted Brains

Did you ever wonder how Extraverted brains differ from Amb iverted and Introverted brains? Researcher Colin DeYoung and colleagues at the University of Minnesota completed brain-imaging studies on 116 volunteers. They found that the medial orbitofrontal cortex (a part of the brain involved with considering rewards located just above and behind the eyes) was significantly larger in the study’s volunteer subjects who exhibited a lot of Extraversion. The study also correlated larger brain regions for a number of other traits: conscientiousness, which is associated with planning; neuroticism, a tendency to experience negative emotions that is associated with sensitivity to threat and punishment; and agreeableness, which relates to parts of the brain that allow humans to understand each other's emotions, intentions, and mental states.