Lillyth Quillan knew almost immediately that something was wrong with her baby. At around eight months old with eight sharp new teeth, he began deliberately biting her breast as she fed him, then ...

Psychopathy is an antisocial personality disorder that is highly correlated with crime and violence. The concept of psychopathy has been known for centuries but only in recent years has there been ...

Psychopaths have different brain structures to the rest of the population, a study has revealed, helping shed new light on one corner of the "dark personality" triad. Diagnosis with psychopathy is ...

A study conducted on university students found that individuals with higher levels of primary psychopathic traits tend to have lower baseline cortisol levels in the morning, but not in the afternoon.

A psychological assessment test often used to evaluate psychopathy in Canadian criminal cases is unreliable and prone to unconscious bias on the part of expert witnesses, according to research from ...

A new study has found that psychopaths show structural changes in particular areas of the brain that deal with things like impulse control and emotional regulation. This improved understanding may ...

Discover the subtle behavioral indicators that science identifies to recognize psychopathic traits in a brief encounter.

Psychopaths are notorious for playing mind games with their targets as they seek to victimize them. 1 The psychopath’s charm and tricks of persuasion have fooled and bilked millions. The psychopath, ...