title: Verbal fluency as a possible predictor for psychosis.
abstract: BACKGROUND
  Neurocognitive abnormalities are prevalent in both first episode schizophrenia patients and in ultra high risk (UHR) patients.
  
  
  OBJECTIVE
  To compare verbal fluency performance at baseline in UHR in patients that did and did not make the transition to psychosis.
  
  
  METHODS
  Baseline verbal fluency performance in UHR-patients (n=47) was compared to match first episode patients (n=69) and normal controls (n=42).
  
  
  RESULTS
  Verbal fluency (semantic category) scores in UHR-patients did not differ significantly from the score in first episode schizophrenia patients. Both the UHR group (p<0.003) and the patient group (p<0.0001) performed significantly worse than controls. Compared to the non-transition group, the transition group performed worse on verbal fluency, semantic category (p<0.006) at baseline.
  
  
  CONCLUSIONS
  Verbal fluency (semantic category) is disturbed in UHR-patients that make the transition to psychosis and could contribute to an improved prediction of transition to psychosis in UHR-patients.
authors.affiliation: Department of Psychiatry, Academic Medical Centre, Amsterdam, Netherlands. H.E.Becker@amc.uva.nl
authors.forename: H E
authors.initials: HE
authors.lastname: Becker
authors.forename: D H
authors.initials: DH
authors.lastname: Nieman
authors.forename: P M
authors.initials: PM
authors.lastname: Dingemans
authors.forename: J R
authors.initials: JR
authors.lastname: van de Fliert
authors.forename: L
authors.initials: L
authors.lastname: De Haan
authors.forename: D H
authors.initials: DH
authors.lastname: Linszen
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests; D011569:Psychiatric Status Rating Scales; D011597:Psychomotor Performance; D011618:Psychotic Disorders / Q000175:diagnosis / Q000523:psychology*; D012307:Risk Factors; D012559:Schizophrenia / Q000175:diagnosis*; D012565:Schizophrenic Psychology; D012660:Semantics; D012720:Severity of Illness Index; D014705:Verbal Behavior; D014796:Visual Perception; D055815:Young Adult