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Sanders, R D; Schuepbach, D; Goldstein, G; Haas, G L; Sweeney, J A; Keshavan, M S (2004). Relationships between cognitive and neurological performance in neuroleptic-naïve psychosis. Journal of Neuropsychiatry and Clinical Neurosciences, 16(4):480-487.

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The authors explored relationships between neuropsychological performance and neurological exam abnormalities in 86 never-medicated patients with nonorganic psychosis (59 with schizophrenia or schizoaffective disorder) and 51 healthy subjects. Assessments include a reliable subset of the Neurological Evaluation Scale (rNES) and several neuropsychological tests of attention, executive function, memory, and current and premorbid intelligence. Principal components analysis of the rNES yielded two main factors. Of these, CogPer (consisting of more cognitively demanding perceptual tasks) showed stronger relationships than RepMot (consisting of repetitive manual motor tasks) to neuropsychological measures. Customarily, frontal neuropsychological tasks also relate more strongly to CogPer than to RepMot. Approximately one-half of the variability in these cognitive and neurological assessments is shared.


16 citations in Web of Science®
22 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Psychiatric University Hospital Zurich > Clinic for Psychiatry, Psychotherapy, and Psychosomatics
Dewey Decimal Classification:610 Medicine & health
Deposited On:26 Jan 2010 08:17
Last Modified:05 Apr 2016 13:45
Publisher:American Psychiatric Press
Free access at:PubMed ID. An embargo period may apply.
Publisher DOI:10.1176/appi.neuropsych.16.4.480
PubMed ID:15616175

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