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Is the Positive-Negative Distinction in Schizophrenia Valid?

Published online by Cambridge University Press:  02 January 2018

Man Mohan Singh
Affiliation:
Schizophrenic Research Program 901 Southwind Road Springfield, Illinois 62703, USA
Stanley R. Kay
Affiliation:
Schizophrenic Research Program 901 Southwind Road Springfield, Illinois 62703, USA
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Abstract

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Type
Correspondence
Copyright
Copyright © 1987 The Royal College of Psychiatrists 

References

Kay, S. R., Fiszbein, A., Lindenmayer, J.-P. & Opler, L. A. (1986) Positive and negative syndromes in schizophrenia as a function of chronicity. Acta Psychiatrica Scandinavica, 74, 507518.CrossRefGoogle ScholarPubMed
Lindenmayer, J.-P., Kay, S. R. & Friedman, C. (1986) Negative and positive schizophrenic syndromes after the acute phase: a prospective follow-up. Comprehensive Psychiatry, 27, 276286.CrossRefGoogle ScholarPubMed
Singh, M. M. (1978) Some insights into the pathogenesis of schizophrenia. In The Biological Basis of Schizophrenia (eds Hemmings, G. and Hemmings, W. A.). Lancaster: MTP Press.Google Scholar
Singh, M. M. & Kay, S. R. (1979) Dysphoric response to neuroleptic treatment in schizophrenia: its relationship to autonomic arousal and prognosis. Biological Psychiatry, 14, 277294.Google ScholarPubMed
Singh, M. M. & Kay, S. R. (1984) Exogenous peptides and schizophrenia. In Psychoneuroendocrine Dysfunction (eds Shah, N. S. and Donald, A. G.). New York: Plenum Press.Google Scholar
Singh, M. M. & Kay, S. R. Opler, L. A. (1987) Anticholinergic-neuroleptic antagonism in terms of positive and negative symptoms of schizophrenia: implications for psychobiological subtyping. In Psychological Medicine (In Dress).Google Scholar
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