A. Residual schizophrenia- absence of prominent delusions, hallucinations, disorganized speech, and grossly disorganized or catatonic behavior. Continued evidence of some light symptoms. Usually reserved for those who experience a schizophrenic episode but not another.
B. Schizoaffective disorder- A major depressive episode or manic episode occurs with symptoms of schizophrenia.
C. Schizophreniform disorder- a category reserved for schizophrenia-like symptoms that last at least a month but do not last for 6 months and so do not warrant a diagnosis of schizophrenia.
D. Delusional disorder- nonbizarre delusions (involving situations that could occur in real life. being followed or poisoned) that last for at least a month. No evidence of impaired functioning and no evidence of full-blown schizophrenia.
E. Shared psychotic disorder- folie a deux. A delusion that develops in someone who has a very close relationship with another person who is delusional. Contagion in friends and families.





