Evidence map›Paper›PMID 26611783›Full record

ArticleEuropean archives of psychiatry and clinical neuroscience2016

Cognitive deficits in bipolar disorder: from acute episode to remission.

J Volkert, M A Schiele, Julia Kazmaier, Friederike Glaser, K C Zierhut, J Kopf, S Kittel-Schneider, A Reif

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In one paragraph

Article in European archives of psychiatry and clinical neuroscience, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

  1. Pooled it
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  12. MICEmi: A method to identify cognitive endophenotypes of mental illnesses.European psychiatry : the journal of the Association of European Psychiatrists · 2022
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

J VolkertDepartment of Psychiatry, Psychosomatic Medicine and Psychotherapy, Goethe-University, Heinrich-Hoffmann-Straße 10, 60528, Frankfurt am Main, Germany. julia.volkert@kgu.de.
M A SchieleDepartment of Psychiatry, Psychosomatics and Psychotherapy, University of Wuerzburg, Fuechsleinstrasse 15, 97080, Würzburg, Germany.
Julia KazmaierDepartment of Psychiatry, Psychosomatics and Psychotherapy, University of Wuerzburg, Fuechsleinstrasse 15, 97080, Würzburg, Germany.
Friederike GlaserDepartment of Psychiatry, Psychosomatics and Psychotherapy, University of Wuerzburg, Fuechsleinstrasse 15, 97080, Würzburg, Germany.
K C ZierhutDepartment of Psychiatry, Psychosomatics and Psychotherapy, University of Wuerzburg, Fuechsleinstrasse 15, 97080, Würzburg, Germany.
J KopfDepartment of Psychiatry, Psychosomatic Medicine and Psychotherapy, Goethe-University, Heinrich-Hoffmann-Straße 10, 60528, Frankfurt am Main, Germany.
S Kittel-SchneiderDepartment of Psychiatry, Psychosomatic Medicine and Psychotherapy, Goethe-University, Heinrich-Hoffmann-Straße 10, 60528, Frankfurt am Main, Germany.
A ReifDepartment of Psychiatry, Psychosomatic Medicine and Psychotherapy, Goethe-University, Heinrich-Hoffmann-Straße 10, 60528, Frankfurt am Main, Germany.
Goethe University Frankfurt · DEUniversity of Würzburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Considerable evidence demonstrates that neuropsychological deficits are prevalent in bipolar disorder during both acute episodes and euthymia. However, it is less clear whether these cognitive disturbances are state- or trait-related. We here present the first longitudinal study employing a within-subject pre- and post-testing examining acutely admitted bipolar patients (BP) in depression or mania and during euthymia, aiming to identify cognitive performance from acute illness to remission. Cognitive performance was measured during acute episodes and repeated after at least 3 months of remission. To do so, 55 BP (35 depressed, 20 hypo-/manic) and 55 healthy controls (HC) were tested with a neuropsychological test battery (attention, working memory, verbal memory, executive functioning). The results showed global impairments in acutely ill BP compared to HC: depressed patients showed a characteristic psychomotor slowing, while manic patients had severe deficits in executive functioning. Twenty-nine remitted BP could be measured in the follow-up (dropout rate 48 %), whose cognitive functions partially recovered, whereas working memory and verbal memory were still impaired. However, we found that subthreshold depressive symptoms and persisting sleep disturbances in euthymic BP were associated with reduced speed, deficits in attention and verbal memory, while working memory was correlated with psychotic symptoms (lifetime). This result indicates working memory as trait related for a subgroup of BP with psychotic symptoms. In contrast, attention and verbal memory are negatively influenced by state factors like residual symptoms, which should be more considered as possible confounders in the search of cognitive endophenotypes in remitted BP.

Indexed as

AdultBipolar DisorderCase-Control StudiesCognition DisordersExecutive FunctionFemaleHumansLongitudinal StudiesMaleMemory, Long-TermMemory, Short-TermNeuropsychological TestsPsychomotor PerformanceBipolar disorderCognitionDepressionManiaNeuropsychological functioningRemission

Identifiers

PMID26611783
OpenAlexW2181269755

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.