Cited by 204Schizophrenia research and treatmentMental Health Research TopicsMental Health and Psychiatry

The latent structure of negative symptoms in schizophrenia

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Strauss, Gregory P., Nuñez, Alicia, Ahmed, Anthony O., Barchard, Kimberly A., Granholm, Eric, Kirkpatrick, Brian, Gold, James M., Allen, Daniel N.·2018·JAMA Psychiatry

Abstract

Importance: Negative symptoms are associated with a range of poor clinical outcomes, and currently available treatments generally do not produce a clinically meaningful response. Limited treatment progress may be owing in part to poor clarity regarding latent structure. Prior studies have inferred latent structure using exploratory factor analysis, which has led to the conclusion that there are 2 dimensions reflecting motivation and pleasure (MAP) and diminished expressivity (EXP) factors. However, whether these conclusions are statistically justified remains unclear because exploratory factor analysis does not test latent structure. Confirmatory factor analysis (CFA) is needed to test competing models regarding the latent structure of a construct. Objective: To evaluate the fit of 4 models of the latent structure of negative symptoms in schizophrenia using CFA. Design, Setting, and Participants: Three cross-sectional studies were conducted on outpatients with schizophrenia who were rated on the 3 most conceptually contemporary measures: Scale for the Assessment of Negative Symptoms (SANS), Brief Negative Symptom Scale (BNSS), and Clinical Assessment Interview for Negative Symptoms (CAINS). Confirmatory factor analysis evaluated the following 4 models: (1) a 1-factor model; (2) a 2-factor model with EXP and MAP factors; (3) a 5-factor model with separate factors for the 5 domains of the National Institute of Mental Health consensus development conference (blunted affect, alogia, anhedonia, avolition, and asociality); and (4) a hierarchical model with 2 second-order factors reflecting EXP and MAP and 5 first-order factors reflecting the 5 consensus domains. Main Outcomes and Measures: Outcomes included CFA model fit statistics derived from symptom severity scores on the SANS, BNSS, and CAINS. Results: The study population included 860 outpatients with schizophrenia (68.0% male; mean [SD] age, 43.0 [11.4] years). Confirmatory factor analysis was conducted on each scale, including 268 patients for the SANS, 192 for the BNSS, and 400 for the CAINS. The 1- and 2-factor models provided poor fit for the SANS, BNSS, and CAINS as indicated by comparative fit indexes (CFIs) and Tucker Lewis indexes (TLIs) less than 0.950, RMSEAs that exceeded the 0.080 threshold, and WRMRs greater than 1.00. The 5-factor and hierarchical models provided excellent fit, with the 5-factor model being more parsimonious. The CFIs and TLIs met the 0.95 threshold and the 1.00 threshold for both factor models with all 3 measures. Interestingly, the RMSEAs for the 5-factor model and the hierarchical model fell under the 0.08 threshold for the BNSS and the CAINS but not the SANS. Conclusions and Relevance: These findings suggest that the recent trend toward conceptualizing the latent structure of negative symptoms as 2 distinct dimensions does not adequately capture the complexity of the construct. The latent structure of negative symptoms is best conceptualized in relation to the 5 consensus domains. Implications for identifying pathophysiological mechanisms and targeted treatments are discussed.

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  • Anhedonia is a distinct feature of negative symptoms in schizophrenia worthy of consideration.

    “When considering the clinical end point of schizophrenia, work is emerging that anhedonia is a distinct feature of negative symptoms worthy of consideration (202).”

    From A transdiagnostic perspective on social anhedonia (2019) · cites this paper as [202]

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  1. Messinger JW, Trémeau F, Antonius D, et al. Avolition and expressive deficits capture negative symptom phenomenology: implications for DSM-5 and schizophrenia research. Clin Psychol Rev. 2011; 31(1):161-168. doi:10.1016/j.cpr.2010.09.002 · DOI · Paper page

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Authors
Strauss, G. P., Nuñez, A., Ahmed, A. O., Barchard, K. A., Granholm, E., Kirkpatrick, B., Gold, J. M., & Allen, D. N.
Affiliations
  • University of Georgia (US)
  • University of Nevada, Las Vegas (US)
  • Weill Cornell Medicine (US)
  • University of California San Diego (US)
  • University of Nevada, Reno (US)
  • University of Maryland, Baltimore (US)
Corresponding author
Strauss, Gregory P.
Venue
JAMA Psychiatry
Published
2018-12-01
Volume
75
Issue
12
Pages
1271
ISSN
2168-622X (ISSN-L)
OpenAlex
W2889918482
Cited by
204
References
56
Citations by year
2026: 25 · 2025: 30 · 2024: 16 · 2023: 26 · 2022: 22 · 2021: 35 · 2020: 32 · 2019: 15 · 2018: 3
FWCI
16.72
Type
journal article
Language
en
Open access
Locations
  • JAMA Psychiatry (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01mh080066-10)
  • National Institute of Mental Health (R61MH110019, R01-MH080066, K23MH092530)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Mental Health Research Topics
  • Social Sciences › Arts and Humanities › Philosophy › Mental Health and Psychiatry
Keywords
negative symptoms, schizophrenia, latent structure, factor structure, blunted affect, alogia, anhedonia, avolition, asociality, Scale for the Assessment of Negative Symptoms, Brief Negative Symptom Scale, model fit, hierarchical factor model, psychometric validation
MeSH terms
Adult, Cross-Sectional Studies, Factor Analysis, Statistical, Female, Humans, Male, Middle Aged, Motivation, Psychiatric Status Rating Scales, Schizophrenia, Schizophrenic Psychology, Severity of Illness Index, Reproducibility of Results, Pleasure

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