The document discusses various psychotic disorders including their symptoms, course, subtypes, etiology, neurobiology features, and medications. Schizophrenia is characterized by delusions, hallucinations, disorganized speech, grossly inappropriate behavior, and affective flattening. Its symptoms typically emerge in late adolescence/early adulthood and it has both active and residual phases. Etiology may include genetic and environmental factors. Other disorders discussed include brief psychotic disorder, schizophreniform disorder, shared psychotic disorder, and delusional disorder.