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The Symptoms of Chronic Schizophrenia: A Re-examination of the Positive-Negative Dichotomy

Liddle, Peter F.·1987·British Journal of Psychiatry

Abstract

The relationships between symptoms in 40 schizophrenic patients, selected for persistence of symptoms, were examined. The symptoms segregated into three syndromes: psychomotor poverty (poverty of speech, lack of spontaneous movement and various aspects of blunting of affect): disorganisation (inappropriate affect, poverty of content of speech, and disturbances of the form of thought): and reality distortion (particular types of delusions and hallucinations). Both the psychomotor poverty and disorganisation syndromes were associated with social and occupational impairment; in particular, the psychomotor poverty syndrome was associated with impairment of personal relationships, and the disorganisation syndrome with poor self-care and impersistence at work.

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Metadata

Authors
Liddle, P. F.
Venue
British Journal of Psychiatry
Published
1987-08
Volume
151
Issue
2
Pages
145-151
ISSN
  • 0007-1250 (ISSN-L)
  • 1472-1465
OpenAlex
W1999992635
Cited by
1,427
References
0
FWCI
10.03
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: The Symptoms of Chronic Schizophrenia: A Re-examination of the Positive-Negative Dichotomy. https://app.cochat.ai/papers/10.1192/bjp.151.2.145
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Liddle, P. F. (1987). The Symptoms of Chronic Schizophrenia: A Re-examination of the Positive-Negative Dichotomy. British Journal of Psychiatry. https://doi.org/10.1192/bjp.151.2.145

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.