title: No evidence of a homogeneous frontal neuropsychological profile in a sample of schizophrenic subjects.
abstract: The authors obtained a frontal functions profile for 81 schizophrenic patients using six neuropsychological tests that evaluate the dorsolateral prefrontal cortex functions, i.e., working memory, executive functions, and strategic performance. They then analyzed the test performances with a cluster analysis, which produced a four-cluster solution. The results support the hypothesis that neuropsychological dysfunctions in schizophrenia are heterogeneous. The performances on many of the neuropsychological tests were also strongly correlated with verbal and nonverbal IQ, as measured by the Wechsler Adult Intelligence Scale-Revised.
authors.affiliation: Psychiatric Branch, Department of Medicine, Surgery, and Dentistry, University of Milan Medical School, Italy.
authors.forename: Orsola
authors.initials: O
authors.lastname: Gambini
authors.forename: Arturo
authors.initials: A
authors.lastname: Campana
authors.forename: Giacomo
authors.initials: G
authors.lastname: Garghentini
authors.forename: Silvio
authors.initials: S
authors.lastname: Scarone
mesh_terms: D000328:Adult; D016000:Cluster Analysis; D004193:Discrimination Learning / Q000502:physiology; D004292:Dominance, Cerebral / Q000502:physiology; D005260:Female; D005625:Frontal Lobe / Q000503:physiopathology*; D006801:Humans; D007360:Intelligence / Q000502:physiology; D008297:Male; D011939:Mental Recall / Q000502:physiology; D009483:Neuropsychological Tests / Q000706:statistics & numerical data*; D011340:Problem Solving / Q000502:physiology; D011594:Psychometrics; D012559:Schizophrenia / Q000175:diagnosis / Q000503:physiopathology*; D012564:Schizophrenic Language; D012565:Schizophrenic Psychology; D014705:Verbal Behavior / Q000502:physiology; D014888:Wechsler Scales / Q000706:statistics & numerical data