Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 644

The DOI matches its Crossref record; 16 of the 16 references it cites were found in a registry or an index.

Neuropsychological testing of cognitive impairment in euthymic bipolar disorder: an individual patient data meta‐analysis

Open access
Bourne, C., Aydemir, Ö., Balanzá‐Martínez, V., Bora, E., Brissos, S., Cavanagh, J. T. O., Clark, L., Cubukcuoglu, Z., Dias, V. V., Dittmann, S., Ferrier, I. N., Fleck, D. E., Frangou, S., Gallagher, P., Jones, L., Kieseppä, T., Martínez‐Aran, A., Melle, I., Moore, P. B., Mur, M., Pfennig, A., Raust, A., Senturk, V., Simonsen, C., Smith, D. J., Bio, D. S., Soeiro‐de‐Souza, M. G., Stoddart, S. D. R., Sundet, K., Szöke, A., Thompson, J. M., Torrent, C., Zalla, T., Craddock, N., Andreassen, O. A., Leboyer, M., Vieta, E., Bauer, M., Worhunsky, P. D., Tzagarakis, C., Rogers, R. D., Geddes, J. R., Goodwin, G. M.·2013·Acta Psychiatrica Scandinavica

Abstract

Objective: An association between bipolar disorder and cognitive impairment has repeatedly been described, even for euthymic patients. Findings are inconsistent both across primary studies and previous meta‐analyses. This study reanalysed 31 primary data sets as a single large sample (N = 2876) to provide a more definitive view. Method: Individual patient and control data were obtained from original authors for 11 measures from four common neuropsychological tests: C alifornia or Rey Verbal Learning Task (VLT), Trail Making Test (TMT), Digit Span and/or W isconsin Card Sorting Task. Results: Impairments were found for all 11 test‐measures in the bipolar group after controlling for age, IQ and gender (P s ≤ 0.001, E.S. = 0.26–0.63). Residual mood symptoms confound this result but cannot account for the effect sizes found. Impairments also seem unrelated to drug treatment. Some test‐measures were weakly correlated with illness severity measures suggesting that some impairments may track illness progression. Conclusion: This reanalysis supports VLT, Digit Span and TMT as robust measures of cognitive impairments in bipolar disorder patients. The heterogeneity of some test results explains previous differences in meta‐analyses. Better controlling for confounds suggests deficits may be smaller than previously reported but should be tracked longitudinally across illness progression and treatment.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1111/acps.12133

Cites

16 of 16 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 16 references

Cited by

See all 644

Metadata

Authors
Bourne, C., Aydemir, Ö., Balanzá‐Martínez, V., Bora, E., Brissos, S., Cavanagh, J. T. O., Clark, L., Cubukcuoglu, Z., Dias, V. V., Dittmann, S., Ferrier, I. N., Fleck, D. E., Frangou, S., Gallagher, P., Jones, L., Kieseppä, T., Martínez‐Aran, A., Melle, I., Moore, P. B., Mur, M., Pfennig, A., Raust, A., Senturk, V., Simonsen, C., Smith, D. J., Bio, D. S., Soeiro‐de‐Souza, M. G., Stoddart, S. D. R., Sundet, K., Szöke, A., Thompson, J. M., Torrent, C., Zalla, T., Craddock, N., Andreassen, O. A., Leboyer, M., Vieta, E., Bauer, M., Worhunsky, P. D., Tzagarakis, C., Rogers, R. D., Geddes, J. R., & Goodwin, G. M.
Venue
Acta Psychiatrica Scandinavica
Publisher
Wiley
Published
2013-04-26
Volume
128
Issue
3
Pages
149-162
ISSN
  • 0001-690X (ISSN-L)
  • 1600-0447
OpenAlex
W2150924595
Cited by
644
References
16
FWCI
35.51
Type
journal article
Language
en
Open access
bronze

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Neuropsychological testing of cognitive impairment in euthymic bipolar disorder: an individual patient data meta‐analysis. https://app.cochat.ai/papers/10.1111/acps.12133
The paper
Bourne, C., Aydemir, Ö., Balanzá‐Martínez, V., Bora, E., Brissos, S., Cavanagh, J. T. O., Clark, L., Cubukcuoglu, Z., Dias, V. V., Dittmann, S., Ferrier, I. N., Fleck, D. E., Frangou, S., Gallagher, P., Jones, L., Kieseppä, T., Martínez‐Aran, A., Melle, I., Moore, P. B., . . . Goodwin, G. M. (2013). Neuropsychological testing of cognitive impairment in euthymic bipolar disorder: an individual patient data meta‐analysis. Acta Psychiatrica Scandinavica. https://doi.org/10.1111/acps.12133

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.