title: Cognitive functioning in first episode psychosis: initial presentation.
abstract: This first part of a longitudinal study examined the initial cognitive performance of 312 individuals who recently presented with a first episode (FE) of psychosis. All attend a comprehensive first episode program. Deficits on a wide range of cognitive tests were observed, suggesting impairment similar to that seen in those with an established schizophrenia illness. There was no evidence to support differences in cognition among the different schizophrenia spectrum diagnostic groups.
authors.affiliation: Department of Psychiatry, University of Calgary, Foothills Hospital, Calgary, Canada. jean_addington@camh.net
authors.forename: Jean
authors.initials: J
authors.lastname: Addington
authors.forename: Brian L
authors.initials: BL
authors.lastname: Brooks
authors.forename: Donald
authors.initials: D
authors.lastname: Addington
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D003072:Cognition Disorders / Q000175:diagnosis* / Q000523:psychology; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D009483:Neuropsychological Tests / Q000706:statistics & numerical data*; D011569:Psychiatric Status Rating Scales; D011618:Psychotic Disorders / Q000175:diagnosis* / Q000523:psychology; D012559:Schizophrenia / Q000175:diagnosis*; D012565:Schizophrenic Psychology