Cited by 962Bipolar Disorder and TreatmentSchizophrenia research and treatmentNeural and Behavioral Psychology Studies

A meta-analysis of cognitive deficits in euthymic patients with bipolar disorder

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Robinson, Lucy J., Thompson, Jill M., Gallagher, Peter, Goswami, Utpal, Young, Allan H., Ferrier, I. Nicol, Moore, P. Brian·2006·Journal of Affective Disorders

Abstract

Background A number of studies have reported evidence of cognitive deficits in euthymic bipolar patients. Qualitative reviews of the literature have indicated impairments in executive functions and declarative memory are most consistently reported. However, not all primary studies conducted to date have had sufficient power to detect statistically significant differences and there have been few attempts to quantify the magnitude of impairments. This review aims to combine data from available studies to identify the profile of neuropsychological deficits in euthymic bipolar patients and quantify their magnitude. Method Systematic literature review and meta-analysis. Results Large effect sizes (d>or=0.8) were noted for aspects of executive function (category fluency, mental manipulation) and verbal learning. Medium effect sizes (0.5<or=d<0.8) were found for aspects of immediate and delayed verbal memory, abstraction and set-shifting, sustained attention, response inhibition, and psychomotor speed. Small effect sizes (0.2<or=d<0.5) were reported for verbal fluency by letter, immediate memory, and sustained attention. Limitations Sufficient data were not available to investigate all domains. For example analyses did not include measures of visuospatial function. Conclusion Euthymic bipolar patients demonstrate relatively marked impairment in aspects of executive function and verbal memory. It is not yet clear whether these are two discrete areas of impairment or are related to one another. Future investigations should clarify the functional significance of deficits and indicate whether patients will benefit from ameliorative interventions.

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Crossref · 10.1016/j.jad.2006.02.016

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Authors
Robinson, L. J., Thompson, J. M., Gallagher, P., Goswami, U., Young, A. H., Ferrier, I. N., & Moore, P. B.
Affiliations
  • Royal Victoria Infirmary (GB)
  • West Park Hospital (GB)
Corresponding author
Ferrier, I. Nicol
Venue
Journal of Affective Disorders
Publisher
Elsevier BV
Published
2006-07
Volume
93
Issue
1-3
Pages
105-115
ISSN
0165-0327 (ISSN-L)
OpenAlex
W2097812147
Cited by
962
References
4
Citations by year
2026: 25 · 2025: 33 · 2024: 29 · 2023: 25 · 2022: 28 · 2021: 55 · 2020: 39 · 2019: 53 · 2018: 37 · 2017: 47 · 2016: 54 · 2015: 69 · 2014: 65 · 2013: 75 · 2012: 66
FWCI
6.85
Type
journal article
Language
en
Open access
Locations
  • Journal of Affective Disorders (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion)
  • Newcastle University ePrints (Newcastle Univesity)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
Keywords
bipolar disorder, euthymic bipolar patients, cognitive impairment, executive function, verbal memory, verbal learning, semantic fluency, set-shifting, response inhibition, sustained attention, psychomotor speed, neuropsychological deficits
MeSH terms
Affect, Bipolar Disorder, Cognition Disorders, Humans, Neuropsychological Tests

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