Evidence map›Paper›PMID 39711528›Full record

ArticleResearch square2024

Effect of home-based transcranial direct current stimulation (tDCS) on cognitive functioning in bipolar depression.

Hakimeh Rezaei, Rachel D Woodham, Ali-Reza Ghazi-Noori, Philipp Ritter, Elvira Bramon, Michael Bauer, Allan H Young, Cynthia H Y Fu

Abstract readPreprint
In one paragraph

Article in Research square, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Hakimeh RezaeiTU Dresden.
Rachel D WoodhamUniversity of East London.
Ali-Reza Ghazi-NooriUniversity of East London.
Philipp RitterTU Dresden.
Elvira BramonUniversity College London.
Michael BauerTU Dresden.
Allan H YoungKing's College London.
Cynthia H Y FuUniversity of East London.

Funding

Disentangling the anatomical, functional and clinical heterogeneity of major depression, using machine learning methodsR01MH134236 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI DAVATZIKOS, CHRISTOS, FU, CYNTHIA · 2023 to 2024
$1.5M
NIMH NIH HHS R01 MH134236Wellcome Trust
6 · The paper itself

Abstract

Bipolar depression is commonly accompanied by cognitive impairments. Transcranial direct current stimulation (tDCS) is emerging as a novel non-invasive treatment for bipolar depression. Given the portability and safety of tDCS, we developed a home-based protocol with real-time supervision. Our aim was to assess the cognitive effects of tDCS in bipolar disorder. 44 participants (31 women, mean age 47.27 ± 12.89 years) experiencing a moderate to severe depressive episode received 21 sessions of home-based tDCS over 6 weeks. The stimulation protocol involved 2 mA in a bilateral frontal montage (F3 anode, F4 cathode) for 30 minutes per session. The cognitive assessments were conducted at baseline and after the course of treatment. Rey Auditory Verbal Learning Test (RAVLT) was used to assess verbal learning and memory and the Symbol Digit Modalities Test (SDMT) to assess psychomotor processing speed and visuospatial attention. 93.18% (n=41) completed RAVLT and 59.09% of participants (n=26) completed SDMT. A significant improvement was observed in the RAVLT short-term verbal memory score post-treatment (p = 0.002). Improvements were observed in RAVLT verbal learning, RAVLT post-interference recall, and SDMT, which were not statistically significant. In summary, cognitive performance showed an improvement in bipolar depression following treatment with home-based tDCS, suggesting it can be an effective intervention for cognitive deficits in bipolar depression and positively impact cognitive function.

Indexed as

bipolar depressioncognitive impairmenthome-based treatmentNeuropsychological TestsTranscranial direct current stimulation

Identifiers

PMID39711528
PMCPMC11661373

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Registered trials

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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.