Kraepelin-oriented research-diagnosable schizophrenia, mania, and depression in Schneider-negative schizophrenics

Archiv für Psychiatrie und Nervenkrankheiten
K G KoehlerC Jacoby

Abstract

The rigorous neo-Kraepelinean research criteria of the St. Louis/Iowa and Taylor groups were applied to case record data of 116 first admissions of Schneider-negative schizophrenics--that is, those without first-rank symptoms (FRSs)--hospitalized in a strongly Schneider-oriented German University Psychiatric Clinic from 1962 to 1971. This sample had a total of 45.7% (53 cases) of psychiatric illness diagnosable by research methods. Indeed, only 31% (36 cases) of Schneider-negative schizophrenics turned out to have research-positive Kraepelin-oriented schizophrenia; and of these, 21 fulfilled both sets of research criteria for schizophrenia. It is important that 14.6% (17 cases) of Schneider-negative schizophrenia consisted of research-diagnosable affective disorder, with mania making up 5.2% and depression 9.4% of this figure. The findings suggest that a sample of Schneider-oriented schizophrenia without FRSs as routinely diagnosed in Germany does not seem to represent a clear-cut homogeneous and 'uncontaminated' group of schizophrenics.

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Citations

Dec 13, 2006·Schizophrenia Bulletin·Lennart B Jansson, Josef Parnas
Oct 1, 1979·Acta Psychiatrica Scandinavica·K G Koehler, I Seminario
Sep 1, 1978·Comprehensive Psychiatry·K G Koehler, I Seminario
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Related Concepts

Manic Disorder
Depressive Symptoms
Differential Diagnosis
Psychopathology
Schizophrenia

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