Cited by 43Bipolar Disorder and TreatmentSchizophrenia research and treatmentTreatment of Major Depression

Is there a difference in subjective experience of cognitive function in patients with unipolar disorder versus bipolar disorder?

Miskowiak, Kamilla, Vinberg, Maj, Christensen, Ellen Magrethe, Kessing, Lars Vedel·2012·Nordic Journal of Psychiatry

Abstract

BACKGROUND: Cognitive dysfunction in unipolar disorder (UD) and bipolar disorder (BD) may persist into remission and affect psychosocial function. Executive and memory deficits during remission may be more pronounced in BD than UD. However, patients' subjective experience of cognitive difficulties is poorly understood, and it is unclear whether BD and UD patients experience different cognitive difficulties. AIMS: To investigate whether there are differences in the quality and magnitude of subjective cognitive difficulties between UD and BD, and which factors influence the subjective cognitive difficulties in these patients. METHODS: Patients with BD (n = 54) or UD (n = 45) were referred to the outpatient mood disorder clinic at Department of Psychiatry, Copenhagen University Hospital, following hospital discharge. Affective symptoms and patients' experience of cognitive symptoms were assessed at their initial consultation at the clinic. RESULTS: Patients experienced mild to moderate cognitive impairment despite being in partial or full remission, but there were no differences in subjective difficulties between BD and UD. Subjective cognitive dysfunction was predicted by depression severity, anxiety and mania symptoms rather than by diagnosis, age, gender or alcohol misuse. CONCLUSION: The absence of difference in subjective cognitive difficulties between UD and BD contrasts with evidence of greater objective dysfunction in BD. This highlights a potential discord between subjective and objective measures of cognitive function. Subjective cognitive function was predicted by affective symptoms, perhaps suggesting that this reflects mood symptoms rather than objective deficits. This points to a clinical need for objective assessment of cognitive function in these patient groups.

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Crossref · 10.3109/08039488.2012.658862

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Authors
Miskowiak, K., Vinberg, M., Christensen, E. M., & Kessing, L. V.
Affiliations
Copenhagen University Hospital (DK)
Corresponding author
Miskowiak, Kamilla
Venue
Nordic Journal of Psychiatry
Published
2012-03-09
Volume
66
Issue
6
Pages
389-395
ISSN
  • 0029-1455 (ISSN-L)
  • 0803-9488
  • 1502-4725
OpenAlex
W2103247610
Cited by
43
References
47
Citations by year
2025: 5 · 2024: 3 · 2023: 1 · 2022: 6 · 2021: 4 · 2020: 3 · 2019: 3 · 2018: 2 · 2017: 4 · 2016: 9 · 2015: 1 · 2014: 1 · 2013: 1
FWCI
0.68
Type
journal article
Language
en
Open access
closed
Locations
  • Nordic Journal of Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
Funders
  • AstraZeneca
  • International Society for Bipolar Disorders
  • Servier
  • H. Lundbeck A/S
  • Cilag
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
Keywords
cognitive impairment, unipolar disorder, bipolar disorder, remission, executive function, memory impairment, depression severity, anxiety symptoms, manic symptoms, mood symptoms
MeSH terms
Adult, Affect, Attention, Bipolar Disorder, Cognition, Cognition Disorders, Depressive Disorder, Female, Humans, Male, Memory Disorders, Middle Aged, Perception, Psychiatric Status Rating Scales, Young Adult

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