When a person exhibits symptoms such as bizarre postures or grimaces, extremely agitated behavior, very little speech, and the echoing of words just spoken by another person, the diagnosis would be:

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The symptoms described are consistent with catatonia, a subtype of schizophrenia. The bizarre postures and grimaces suggest motor abnormalities and the lack of speech and echoing of words suggest disordered thought processes. Antisocial personality disorder is characterized by a disregard for the rights of others and violates social norms, often accompanied by criminal behavior. Posttraumatic stress disorder involves re-experiencing a traumatic event through flashbacks or nightmares. Dissociative identity disorder involves the presence of two or more distinct personality states that alternate control over a person's behavior. None of these conditions would fully capture the described symptoms.

When a Person Exhibits Symptoms Such as Bizarre Postures or Grimaces