Cited by 594Schizophrenia research and treatmentMental Health and PsychiatryMental Health Research Topics

Negative Symptoms in Schizophrenia: Avolition and Occam's Razor

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Foussias, G., Remington, G.·2010·Schizophrenia Bulletin

Abstract

The identification of schizophrenia's negative symptoms dates back to the earliest descriptions of Kraepelin and Bleuler, who each highlighted the central role of avolition in the phenomenology and course of this illness. Since, there have been numerous advances in our understanding of schizophrenia, and the present review tracks the changes that have taken place in our understanding of negative symptoms, their description and measurement. That these symptoms represent a distinct domain of the illness is discussed in the context of their ties to other symptoms and functional outcome. The underlying structure of the negative symptom construct is explored, including several lines of investigation that point towards diminished expression and amotivation as key underlying subdomains. We also discuss findings of intact emotional experience and consummatory pleasure in individuals with schizophrenia, calling into question the presence of anhedonia in this illness. We conclude with a reconceptualization of the negative symptoms, suggesting amotivation (ie, avolition) represents the critical component, particularly in regard to functional outcome. Further exploration and clarification of this core deficit will ultimately enhance our neurobiological understanding of schizophrenia, as well as strategies that may improve outcome.

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  1. [10]Jackson JH. Selected Writings. New York, NY: Basic Books; 1958. [Google Scholar]
  2. [83]Baker A. Simplicity. In: Zalta EN, editor. The Stanford Encyclopedia of Philosophy. 2004. [Google Scholar]

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Authors
Foussias, G., & Remington, G.
Affiliations
Centre for Addiction and Mental Health (CA)
Corresponding author
Foussias, G.
Venue
Schizophrenia Bulletin
Published
2008-07-21
Volume
36
Issue
2
Pages
359-369
ISSN
  • 0586-7614 (ISSN-L)
  • 1745-1701
OpenAlex
W2156770514
Cited by
594
References
91
Citations by year
2026: 23 · 2025: 22 · 2024: 15 · 2023: 27 · 2022: 40 · 2021: 37 · 2020: 36 · 2019: 30 · 2018: 50 · 2017: 39 · 2016: 54 · 2015: 41 · 2014: 55 · 2013: 53 · 2012: 27
FWCI
10.31
Type
journal article
Language
en
Open access
Locations
  • Schizophrenia Bulletin (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Social Sciences › Arts and Humanities › Philosophy › Mental Health and Psychiatry
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Mental Health Research Topics
Keywords
schizophrenia, negative symptoms
MeSH terms
Affective Symptoms, Drive, Emotions, Humans, Motivation, Prognosis, Psychiatric Status Rating Scales, Psychometrics, Schizophrenia, Schizophrenic Psychology, Social Isolation, Reproducibility of Results, Pleasure

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