Which criterion states that psychotic symptoms predate substance use and persist after cessation for at least one month?

• A. Post-Use Psychosis
• B. Substance-Induced Psychosis
• C. Primary Psychotic Disorder
• D. Symptoms Preceding Substance Use

Answer: (D)

The main idea here is distinguishing a primary psychotic disorder from a substance‑induced one by timing. If psychotic symptoms were already present before the person started using a substance and they continue even after stopping the substance (for at least a month), this argues that the psychosis is not caused by the substance. Instead, it points to an independent, primary psychotic disorder such as schizophrenia. The lasting course after cessation helps rule out transient substance effects like intoxication or withdrawal. So the criterion described is recognizing symptoms that precede substance use and persist after abstinence, indicating a primary psychotic disorder.