Which personality disorder is characterized by excessive emotionality and attention-seeking behavior?

Histrionic personality disorder is characterized by a pervasive pattern of excessive emotionality and attention-seeking behavior. Individuals with this disorder often exhibit an intense need for approval and may engage in theatrical or exaggerated behaviors to draw attention to themselves. This can include being overly dramatic, using provocative or seductive behavior, and placing undue emphasis on their physical appearance. Their emotions can be shallow and change rapidly, which further underscores their desire for attention and validation from others.

This definition aligns closely with the key features of histrionic personality disorder. The focus on attention-seeking and emotional expression sharply differentiates it from the other personality disorders listed. Schizotypal disorder, for example, is characterized by social anxiety and eccentric behavior rather than emotionality. Narcissistic personality disorder revolves primarily around grandiosity and a lack of empathy, while paranoid personality disorder is marked by a pervasive distrust and suspicion of others. Therefore, histrionic stands out as the disorder that most closely embodies the traits described in the question.