2. Chapter 9: Schizophrenia Schizophrenia criteria clarified and updated Delusional, Schizophreniform and Brief Psychotic Disorder criteria clarified Criteria updated for Schizoaffective Disorder

3. Schizophrenia Two or more of the following symptoms for at least 1 month; one symptom should be either 1, 2, or 3: (1) delusions (2) hallucinations (3) disorganized speech (4) disorganized (catatonic) behavior (5) negative symptoms (diminished motivation or emotional expression) Functioning in work, relationships, or self-care has declined since onset Signs of disorder for at least 6 months; if during a prodromal or residual phase, negative symptoms or two or more of symptoms

4. Schizoaffective Disorder The DSM-5 requires either a depressive or manic episode rather than simply mood disorder symptoms, as was done in DSM-IV-TR. Criteria include Symptoms of a major mood episode are present for a majority of the duration the illness

5. Delusional Disorder DSM-5 removed criterion that the content of the delusions be “non- bizarre”.

6. Schizophreniform Disorder and Brief Psychotic Disorder DSM-5 specifies that symptoms must include either hallucinations, delusions, or disorganized speech for each of these diagnoses