Which domain is NOT included in psychotic symptom domains?

Affective flattening is the correct choice because it pertains to the expression of emotions and is primarily associated with the negative symptoms of schizophrenia rather than the positive symptoms that characterize psychotic symptom domains. The primary domains of psychotic symptoms include delusions, hallucinations, and disorganized speech, all of which reflect distortions in thinking or perception and are key features in diagnosing disorders like schizophrenia.

Delusions involve firm beliefs in false ideas that significantly affect a person's thoughts and behaviors, hallucinations involve perceiving things that are not present (such as hearing voices), and disorganized speech reflects incoherent or illogical speech that disrupts communication. Affective flattening, while a significant aspect of some psychiatric disorders, particularly represents a lack of emotional expression rather than a symptom of psychosis itself. Therefore, it is excluded from the primary domains associated with psychotic symptoms.