How can you differentiate schizophrenia from mood disorders with psychotic features?

• A. Mood disorders with psychotic features never have mood symptoms.
• B. Schizophrenia shows psychotic symptoms outside mood episodes; mood disorders with psychosis have prominent mood disturbance with psychosis during episodes.
• C. Schizophrenia only occurs during mood episodes.
• D. Schizophrenia is always accompanied by seizures.

Answer: (B)

Distinguishing whether psychosis runs independently of mood or only appears during mood episodes is the main idea. In schizophrenia, psychotic symptoms such as delusions, hallucinations, and disorganized thinking can occur outside any mood disturbance. They tend to persist across time and are not contingent on mood states. In mood disorders with psychotic features, the psychosis happens only during mood episodes (depression or mania/hypomania), and the psychotic symptoms are closely tied to the mood disturbance, often resolving as the mood improves. This pattern—psychosis existing outside mood episodes in one condition but being limited to mood episodes in the other—helps clinicians separate the diagnoses. If psychosis persists without concurrent mood symptoms, or mood symptoms are present for a substantial portion of the illness with concurrent psychosis, schizoaffective disorder becomes a consideration.