Clarke University Psychology Department PSYC 221 Abnormal Psychology Spring 2013 Assessment Four Learning Objectives Schizophrenia and other Psychotic Disorders Chapter 12 4. Discuss the concept of schizophrenia spectrum disorders and distinguish among schizophrenia, schizotypal personality disorder, and schizoaffective disorder. Schizoaffective Disorder An uninterrupted period of illness during which, at some time, there is either a Major Depressive Episode, a Manic Episode, or a Mixed Episode concurrent with symptoms that meet Criterion A for Schizophrenia During the same period of illness, there have been delusions or hallucinations for at least 2 weeks in the absence of prominent mood symptoms Symptoms that meet criteria for a mood episode are present for a substantial portion of the total duration of the active and residual periods of the illness pe03513_