title: Negative symptoms in the course of first-episode affective psychosis.
abstract: To determine whether the prognostic implications of negative symptoms apply to functional psychotic disorders other than schizophrenia, we investigated the significance of negative symptoms in the 18-month course of individuals experiencing a first episode of affective psychosis. Although negative symptoms were found to occur during the acute phase of a major depression or a bipolar disorder with psychotic features, they did not endure and had limited prognostic value. Further, the findings suggest that enduring negative symptoms may be specific to schizophrenia.
authors.affiliation: Department of Health Studies and Gerontology, University of Waterloo, ON, Canada.
authors.forename: J A
authors.initials: JA
authors.lastname: Husted
authors.forename: M
authors.initials: M
authors.lastname: Beiser
authors.forename: W G
authors.initials: WG
authors.lastname: Iacono
mesh_terms: D000293:Adolescent; D000328:Adult; D000341:Affective Disorders, Psychotic / Q000175:diagnosis / Q000523:psychology*; D001143:Arousal; D001714:Bipolar Disorder / Q000175:diagnosis / Q000523:psychology; D003863:Depression / Q000175:diagnosis / Q000523:psychology*; D003866:Depressive Disorder / Q000175:diagnosis / Q000523:psychology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010359:Patient Readmission; D011379:Prognosis; D011569:Psychiatric Status Rating Scales; D011618:Psychotic Disorders / Q000175:diagnosis / Q000523:psychology*; D012559:Schizophrenia / Q000175:diagnosis; D012565:Schizophrenic Psychology; D012917:Social Adjustment