Evidence map›Paper›PMID 35115703›Full record

SynthesisMolecular psychiatry2022

A systematic review and meta-analysis of transcranial direct-current stimulation effects on cognitive function in patients with Alzheimer's disease.

Alireza Majdi, Luuk van Boekholdt, Saeed Sadigh-Eteghad, Myles Mc Laughlin

Registry-linked trialAbstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Molecular psychiatry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07366346 (Telehealth-Adapted Compensatory Training and Intervention for Cognition for People With Mild Cognitive Impairment), which is not on this map. Cited by 43 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 8 pooled it
5.0field-weighted citation impact, top 4% 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.

NCT07366346 narecruitingnot on this mapstarted 2026, after this paper: background citation

Telehealth-Adapted Compensatory Training and Intervention for Cognition for People With Mild Cognitive Impairment

TypeinterventionalSponsorUniversity of FloridaRan2026 to 2027Enrolled100ConditionsMCI, Mild Cognitive Impairment, Mild Cognitive Impairment (MCI)ArmsMotivationally Enhanced Compensatory Cognitive Training for Mild Cognitive Impairment (ME-CCT-MCI), Brief Motivationally Enhanced Compensatory Cognitive Training for Mild Cognitive Impairment (bME-CCT-MCI)
3 · Its place in the literature

Who cites it

43 citing papers in PubMed, 8 syntheses or guidelines pooled it, 64 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Transcranial direct current stimulation for global cognition in Alzheimer's disease: a systemic review and meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
    Pooled it
  8. Pooled it
  9. Trial
  10. Effect of online tDCS to left somatomotor cortex on neuropsychiatric symptoms among older adults at risk for dementia.Cortex; a journal devoted to the study of the nervous system and behavior · 2023
    Trial
  11. Trial
  12. Trial
  13. Trial
  14. Article
  15. Review
  16. Review
  17. A meta-analysis of the effect of non-invasive neuromodulation techniques on improving cognitive function in patients with Alzheimer's disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Review
  18. Excitation-inhibition homeostasis in Alzheimer's disease: a selective multiscale review of mechanisms, sex differences, and therapeutic opportunities.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Review
  19. Review
  20. Review
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

4 authors at 3 institutions in 3 countries.

Alireza MajdiExp ORL, Department of Neuroscience, Leuven Brain Institute, KU Leuven, Leuven, Belgium.ORCID http://orcid.org/0000-0002-2990-4762
Luuk van BoekholdtExp ORL, Department of Neuroscience, Leuven Brain Institute, KU Leuven, Leuven, Belgium.
Saeed Sadigh-EteghadNeurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Myles Mc LaughlinExp ORL, Department of Neuroscience, Leuven Brain Institute, KU Leuven, Leuven, Belgium. Myles.mclaughlin@kuleuven.be.ORCID http://orcid.org/0000-0001-8574-1841
VIB-KU Leuven Center for Brain & Disease Research · BEAllen Institute for Brain Science · USTabriz University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Transcranial direct-current stimulation (tDCS) appears to enhance cognitive function in Alzheimer's disease (AD). Accordingly, over the last two decades, the number of studies using tDCS for AD has grown. This study aimed to provide a quantitative assessment of the efficacy of tDCS in improving cognitive function in patients with AD. We systematically searched the literature until May 2021 to identify relevant publications for inclusion in our systematic review and meta-analysis. Eligible studies were sham-controlled trials assessing the impacts of anodal or cathodal tDCS on cognitive function in patients with AD. The outcome measure of this study was the effects of tDCS on distinct cognitive domains including memory, attention, and global cognitive function. The initial search yielded a total of 323 records. Five other articles were found using manual search of the databases. Of these, 13 publications (14 different studies) with a total of 211 patients of various degrees of AD severity underwent meta-analysis. Meta-analysis revealed the non-significant effects of tDCS on attention (0.425 SMD, 95% CI, -0.254 to 1.104, p = 0.220), and significant positive impacts on the amelioration of general cognitive measures (1.640 SMD, 95% CI, 0.782 to 2.498, p < 0.000), and memory (1.031 SMD, 95% CI, 0.688 to 1.373, p < 0.000) dysfunction in patients with AD. However, the heterogeneity of the studies were high in all subdomains of cognition (ϰ

Indexed as

Alzheimer DiseaseTranscranial Direct Current StimulationCognitionHumans

Identifiers

PMID35115703
OpenAlexW4210620215

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.