A recent study published in Frontiers in Psychology explores the neurological basis of certain personality traits known collectively as the Dark Triad. Researchers found that individuals exhibiting higher levels of these traits tend to have reduced grey matter volumes in brain areas involved in emotional regulation and reward processing. The motivation behind this research stems from a broader interest in understanding the ‘social brain’—the network of brain regions involved in social behavior. While previous studies have mapped various components of the social brain, such as empathy and Theor…