In psychiatry, there’s no more controversial diagnosis than dissociative identity disorder (DID), the disorder formerly known as multiple personality disorder (MPD). First appearing in the third ...

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Personality refers to a relatively stable set of tendencies in behaviors, cognitions, and emotional patterns, which together constitute a person’s unique character. One person may, for instance, be ...

HAMBURG — What is “normal” and what isn’t? This question is constantly being renegotiated in psychology. And sometimes, the boundaries shift, as they are now. What is considered a personality disorder ...

The exact cause of personality disorders is unclear. However, genetics, neurological differences, and environmental factors may contribute to the development of these complex mental health conditions.