Psychopaths have a 10% larger striatum than non-psychopaths, suggesting biological differences in brain structure. This enlargement is tied to impulsivity and a higher craving for stimulation. The ...

Almost everyone understands that Donald Trump displays thought processes that cannot be considered normal. Simple failings ...

A new study suggests that higher levels of psychopathic traits are associated with lower relationship satisfaction in ...

Have you ever felt manipulated by a superior or come across individuals who demand worship, expect underserved praise all the time, full of ego, pride, self-importance and lack empathy? They are ...

Not one to shy away from difficult subjects, Jon Ronson’s unique career in journalism has brought him into contact with ...

Halloween — America’s favorite time to celebrate heroes, villains and cartoon icons alike. As thousands of frat boys across ...

Here are 5 traits that characterize this personality disorder, according to the Psychopathic Personality Inventory ...

Can harsh environments make societies more self-centered or ruthless? Our new study reveals how ecology—not just ...

In the fire service, imagine a captain who subtly undermines a subordinate’s efforts to gain favor with the chief, or a ...

Artificial intelligence (AI) chatbots are worse at retrieving accurate information and reasoning when trained on large ...

William Schrader, called a "psychopath" in a grand jury report, raped and killed Carol Dougherty, 9, in 1962 at St. Mark ...