Series: 'Map of Personality Disorders' Extra Edition 2Key Points of This IssueIn his 1960 book 'Personality' (Iwanami Shinsho ...

"That person is narcissistic," or "They must have borderline personality disorder because their emotions are so volatile." On ...

Assessment and classification of personality disorders have evolved from rigid categorical schemes towards integrative models that capture both severity of dysfunction and underlying trait dimensions.

With three years gone by since the publication of the DSM-5, researchers and clinicians have a renewed interest in righting past wrongs in the diagnostic classification of personality disorders. Some ...

Psychologists have proposed over 400 parts of personality, from readily-recognized parts that are regularly studied such as extraversion and humility to neglected and rarely-studied parts such as the ...

Narcissistic personality disorder (NPD) is 1 of 10 clinically recognized personality disorders. Though NPD is only one official diagnosis, doctors further classify the condition into 2 types.

An individual’s genetics and their environment both shape their personality. However, opinions differ on the degree to which each of these factors influences personality, and how they contribute to ...

Dr. Oldham's contributions have fundamentally reshaped personality disorder classification, moving the field from rigid diagnostic categories toward a more nuanced dimensional system. As former ...