Cognitive Complaints in Schizophrenia: A Meta-Analysis of Studies Using the Subjective Scale to Investigate Cognition in Schizophrenia (SSTICS): Les plaintes cognitives dans la schizophrénie : Une méta-analyse des études utilisant la <i>Subjective Sc

<b>Background:</b> Subjective cognitive complaints, or neurocognitive insight, reflect to patients' awareness of cognitive functioning. In schizophrenia, these complaints show inconsistent links with objective cognition, psychiatric symptoms, and illness insight. The Subjective Scale to Investigate Cognition in Schizophrenia (SSTICS), a validated self-report tool developed in Canada and used internationally, enables a homogeneous synthesis. <b>Objective:</b> This meta-analysis examined whether subjective complaints measured with the SSTICS are associated with objective cognition, psychiatric symptoms, and illness insight, and reviewed its factorial structure. <b>Method:</b> We conducted a meta-analysis following PRISMA guidelines. Systematic searches of PubMed, Web of Science, and Google Scholar identified studies using the SSTICS in psychiatric populations. Eligible studies compared patients to healthy controls and/or examined correlations with cognition, symptoms, or illness insight or conducted factor analyses of the SSTICS domains. <b>Results:</b> Twenty-five studies (<i>N</i> = 3,205) met criteria. Schizophrenia patients reported more cognitive complaints than controls (<i>d</i> = 0.746). No significant correlation emerged with global objective cognition (<i>r</i> = 0.105). Complaints were unrelated to positive, negative, or general symptoms but showed a moderate association with depressive symptoms (<i>r</i> = 0.300) and a small one with illness insight (<i>r</i> = 0.155). Factor analyses consistently identified 3 domains: memory, attention, and daily living. <b>Conclusions:</b> SSTICS-based complaints are substantial in schizophrenia but largely dissociated from objective cognition, reflecting impaired neurocognitive insight. Instead, they are more strongly linked to depressive symptoms, suggesting complaints reflect emotional distress rather than actual deficits. Findings support refining SSTICS subscales and extending investigations to other psychiatric populations.

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Publication Details

Journal
The Canadian Journal of Psychiatry
Published
2026-03-03
DOI
https://doi.org/10.1177/07067437261425086
Citations
1
Primary Topic
Schizophrenia research and treatment
Type
article
Field-Weighted Citation Impact
33.12
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article

Cognitive Complaints in Schizophrenia: A Meta-Analysis of Studies Using the Subjective Scale to Investigate Cognition in Schizophrenia (SSTICS): Les plaintes cognitives dans la schizophrénie : Une méta-analyse des études utilisant la Subjective Sc

André Do, Naomi Rosh White, Stéphane Potvin, Emmanuel Stip
1 citations
The Canadian Journal of Psychiatry
Schizophrenia research and treatment
33.12
article

Cognitive Complaints in Schizophrenia: A Meta-Analysis of Studies Using the Subjective Scale to Investigate Cognition in Schizophrenia (SSTICS): Les plaintes cognitives dans la schizophrénie : Une méta-analyse des études utilisant la Subjective Sc

André Do, Naomi Rosh White, Stéphane Potvin, Emmanuel Stip
article en
1 citations

Abstract

<b>Background:</b> Subjective cognitive complaints, or neurocognitive insight, reflect to patients' awareness of cognitive functioning. In schizophrenia, these complaints show inconsistent links with objective cognition, psychiatric symptoms, and illness insight. The Subjective Scale to Investigate Cognition in Schizophrenia (SSTICS), a validated self-report tool developed in Canada and used internationally, enables a homogeneous synthesis. <b>Objective:</b> This meta-analysis examined whether subjective complaints measured with the SSTICS are associated with objective cognition, psychiatric symptoms, and illness insight, and reviewed its factorial structure. <b>Method:</b> We conducted a meta-analysis following PRISMA guidelines. Systematic searches of PubMed, Web of Science, and Google Scholar identified studies using the SSTICS in psychiatric populations. Eligible studies compared patients to healthy controls and/or examined correlations with cognition, symptoms, or illness insight or conducted factor analyses of the SSTICS domains. <b>Results:</b> Twenty-five studies (<i>N</i> = 3,205) met criteria. Schizophrenia patients reported more cognitive complaints than controls (<i>d</i> = 0.746). No significant correlation emerged with global objective cognition (<i>r</i> = 0.105). Complaints were unrelated to positive, negative, or general symptoms but showed a moderate association with depressive symptoms (<i>r</i> = 0.300) and a small one with illness insight (<i>r</i> = 0.155). Factor analyses consistently identified 3 domains: memory, attention, and daily living. <b>Conclusions:</b> SSTICS-based complaints are substantial in schizophrenia but largely dissociated from objective cognition, reflecting impaired neurocognitive insight. Instead, they are more strongly linked to depressive symptoms, suggesting complaints reflect emotional distress rather than actual deficits. Findings support refining SSTICS subscales and extending investigations to other psychiatric populations.

The Canadian Journal of Psychiatry
Institut Universitaire en Santé Mentale de Québec (CA), Université de Montréal (CA)
Peace, Justice and strong institutions
Openalex Percentile: Top 0%
Schizophrenia research and treatment
33.12
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