Cognitive correlates of schizophrenia signs and symptoms: III. Hallucinations and delusions.
We examined the cognitive correlates of hallucinations and delusions in 47 schizophrenia spectrum individuals. Hallucinations were significantly negatively correlated with performance on episodic memory tasks, and were not significantly associated with performance on tasks measuring fluency or concentration/attention. Although hallucinations were more strongly associated with performance on verbal than non-verbal memory tasks, the difference was not statistically significant. There was also a trend for hallucinations to be associated with poorer performance on working memory tasks, though this association was eliminated when episodic memory performance was taken into account. Delusions were not significantly associated with any of the cognitive measures.
Berenbaum
Howard
H
Department of Psychology, University of Illinois at Urbana-Champaign, Champaign, IL 61820, USA. hberenba@uiuc.edu
Kerns
John G
JG
Vernon
Laura L
LL
Gomez
Jose J
JJ
D000328:Adult; D003072:Cognition Disorders / Q000175:diagnosis* / Q000523:psychology; D003702:Delusions / Q000175:diagnosis* / Q000523:psychology; D039721:Diagnostic and Statistical Manual of Mental Disorders; D005260:Female; D006212:Hallucinations / Q000175:diagnosis* / Q000523:psychology; D006801:Humans; D008297:Male; D008569:Memory Disorders / Q000175:diagnosis / Q000523:psychology; D009483:Neuropsychological Tests / Q000706:statistics & numerical data*; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data; D012559:Schizophrenia / Q000175:diagnosis*; D012565:Schizophrenic Psychology