Personality change refers to the different forms of change in various aspects of personality. These changes include how people experience things, how...

Organic personality disorder (OPD) or secondary personality change, is a condition described in the ICD-10 and ICD-11 respectively. It is characterized...

Personality is any person's collection of interrelated behavioral, cognitive, and emotional patterns that comprise a person’s unique adjustment to life...

Personality disorders (PD) are a class of mental health conditions characterized by enduring maladaptive patterns of behavior, cognition, and inner experience...

Schizoid personality disorder (/ˈskɪtsɔɪd, ˈskɪdzɔɪd, ˈskɪzɔɪd/, often abbreviated as SzPD or ScPD) is a personality disorder characterized by a lack...

Obsessive–compulsive personality disorder (OCPD) is a cluster C personality disorder marked by a spectrum of obsessions with rules, lists, schedules, and...

Histrionic personality disorder (HPD) is a personality disorder characterized by a pattern of excessive attention-seeking behaviors, usually beginning...

In personality psychology and psychometrics, the Big 5 or five-factor model (FFM) is a widely used scientific model for describing how personality traits...

two personality disorder diagnoses, namely Other specified personality disorder and Unspecified personality disorder, along with Personality change due...

Personality psychology is a branch of psychology that examines personality and its variation among individuals. It aims to show how people are individually...

behavioral traits. Personality development is ever-changing and subject to contextual factors and life-altering experiences. Personality development is also...

Borderline personality disorder (BPD) is a personality disorder characterized by a pervasive, long-term pattern of significant interpersonal relationship...

Snapping: America's Epidemic of Sudden Personality Change is a 1978 book written by Flo Conway and Jim Siegelman which describes the authors' theory of...

(ICD-11). The previous edition (ICD-10) proposed a diagnosis of Enduring Personality Change after Catastrophic Event (EPCACE), which was an ancestor of C-PTSD...

Insider World (2020) and Me, But Better: The Science and Promise of Personality Change (2025). Khazan graduated from American University with a degree in...

previously known as multiple personality disorder (MPD), is characterized by the presence of at least two personality states or "alters". The diagnosis...

Narcissistic personality disorder (NPD) is a personality disorder characterized by a life-long pattern of exaggerated feelings of self-importance, an...

did Phineas Gage, the first known person to exhibit a definitive personality change as a result of traumatic brain injury. The index case may or may not...

Antisocial personality disorder (ASPD) is a personality disorder defined by a chronic pattern of behavior that disregards the rights and well-being of...

The ICD-11 classification of personality disorders is a diagnostic framework for personality disorders (PD), introduced in the 11th revision of the International...

the eyes of Larry's friends and acquaintances as they witness his personality change after the war. His rejection of conventional life and search for meaningful...

Psychopathy, or psychopathic personality, is a personality construct characterized by impaired empathy and remorse, persistent antisocial behavior, along...

brain's role in deter­min­ing per­son­al­ity, and that damage to specific parts of the brain might induce specific mental changes. Gage is a fixture in the...

The Type A and Type B personality concept describes two contrasting personality types. In this hypothesis, personalities that are more competitive, highly...

dizziness, etc. As the disease progresses, mental deterioration and personality changes occur. Typical symptoms include loss of social inhibitions, asocial...

A personality test is a method of assessing human personality constructs. Most personality assessment instruments (despite being loosely referred to as...

sudden. Other symptoms may include movement problems, changes in mood, or changes in personality. In the advanced stages, it can result in a coma. Hepatic...

appeared in Client-Centered Therapy (1951) and Psychotherapy and Personality Change (1954). One of his graduate students at the University of Chicago...

to categorize individuals into 16 distinct "psychological types" or "personality types". The MBTI was constructed during World War II by Americans Katharine...

Rank-order change refers to a change in an individual's personality trait relative to other individuals. Mean-level change refers to absolute change in the...