Which personality disorders are categorized in Cluster B?

The categorization of personality disorders into clusters is an important concept in understanding different patterns of behavior and personality. Cluster B personality disorders are characterized by dramatic, emotional, or erratic behavior, and the disorders included in this cluster are Antisocial, Borderline, Narcissistic, and Histrionic.

Antisocial personality disorder is marked by a lack of regard for others' rights, deceit, and impulsive behaviors. Borderline personality disorder is defined by instability in interpersonal relationships, self-image, and emotions; individuals may experience intense episodes of anger, depression, and anxiety. Narcissistic personality disorder is characterized by grandiosity, a need for admiration, and a lack of empathy. Histrionic personality disorder involves excessive emotionality and attention-seeking behavior.

Identifying these four disorders in Cluster B is crucial for clinicians, as each exhibits significant interpersonal challenges and emotional dysregulation. The other options contain disorders that belong to different clusters or do not fit the characteristics associated with Cluster B personality disorders. For example, Paranoid belongs to Cluster A, which involves odd or eccentric behavior, while Avoidant and Dependent are in Cluster C, categorized by anxious and fearful behavior. This classification helps guide diagnosis, treatment, and understanding of these complex conditions