A history of autism is relevant to the assessment of schizophrenia.

• A. Not relevant
• B. Relevant
• C. It confirms diagnosis
• D. It rules out schizophrenia

Answer: (B)

A developmental history can dramatically influence how we interpret psychotic symptoms. Knowing that a person has autism in their background gives important context for current presentation because it helps distinguish longstanding social-communication patterns from new features like delusions or disorganized thinking. It also helps explain baseline functioning and communication style, which can be mistaken for negative symptoms if we don’t know the history. Additionally, autism and schizophrenia can co-occur, so this history signals potential comorbidity and informs how to tailor assessment and treatment (for example, communication supports and sensory considerations). Importantly, having an autism history does not by itself confirm schizophrenia nor does it rule it out; the diagnosis depends on the overall symptom trajectory, onset, and ruling out other causes.