Final answer:
The Big Five personality traits (openness, conscientiousness, extroversion, agreeableness, neuroticism) have been connected to specific structures in the brain.
Step-by-step explanation:
The Big Five personality traits are openness, conscientiousness, extroversion, agreeableness, and neuroticism. Researchers have found connections between these traits and specific structures in the brain. For example, studies have shown that individuals high in openness tend to have greater activity in the prefrontal cortex, which is involved in creativity and imagination. People high in conscientiousness have been found to have larger volumes in areas associated with self-control and goal-directed behavior. Extroversion has been linked to increased activation in the areas responsible for reward and social behavior, while agreeableness is associated with stronger connectivity in brain regions involved in empathy and social cognition. Finally, neuroticism is linked to increased activity in the amygdala, which is the brain's fear center.