Trial reportBrain stimulation
Tolerability and blinding of 4x1 high-definition transcranial direct current stimulation (HD-tDCS) at two and three milliamps.
Trial report in Brain stimulation. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 51 papers, 1 of them a synthesis that pooled 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.
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.
TACS for the Recovery of Phonological STM After Stroke
Therapeutic Effect of Neuromodulation on Anxiety Disorders by High-Definition Transcranial Electrical Stimulation
Who cites it
51 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Combined Cognitive Training and Transcranial Direct Current Stimulation in Neuropsychiatric Disorders: A Systematic Review and Meta-analysis.Biological psychiatry. Cognitive neuroscience and neuroimaging · 2023Pooled it
- Optimized multichannel 4 mA vs conventional transcranial direct current stimulation for major depressive disorder: A randomized sham-controlled trial.Molecular psychiatry · 2026Trial
- Effects of high-definition transcranial direct current stimulation for the treatment of chronic insomnia: a randomized, double-blind, controlled trial.Scientific reports · 2025Trial
- Practice improves older adults' attentional control and prospective memory more than HD-tDCS: a randomized controlled trial.Scientific reports · 2024Trial
- Effects of high-definition tDCS targeting individual motor hotspot with EMG-driven robotic hand training on upper extremity motor function: a pilot randomized controlled trial.Journal of neuroengineering and rehabilitation · 2024Trial
- Effects of High Definition-Transcranial Direct Current Stimulation on Local GABA and Glutamate Levels Among Older Adults with and without Mild Cognitive Impairment: An Exploratory Study.Journal of Alzheimer's disease : JAD · 2021Trial
- Robust enhancement of motor sequence learning with 4 mA transcranial electric stimulation.Brain stimulationTrial
- Sex Does Matter! The Influence of Sex on Outcomes of Transcranial Direct Current Stimulation (tDCS).Cells · 2026Review
- High-definition transcranial direct current stimulation enhances exercise-induced hypoalgesia in patients with chronic low back pain.iScience · 2026Article
- Low intensity transcranial electric stimulation: Safety, ethical, legal regulatory and application guidelines (2017-2025: An update) - endorsed by the European Society for Brain Stimulation (ESBS) and by the International Federation for Clinical Neurophysiology (IFCN).Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2026Review
- Multimodal imaging-based targeting approach for network-level brain stimulation.Frontiers in neuroscience · 2026Article
- Computational Models of High-Definition Electroconvulsive Therapy for Focal or Multitargeting Treatment.The journal of ECT · 2025Article
- Military applications of transcranial direct current stimulation (tDCS) for enhanced multitasking performance.Cognitive research: principles and implications · 2025Review
- High-Definition Transcranial Direct Current Stimulation (HD-tDCS) Therapy in Amyotrophic Lateral Sclerosis: Study Protocol for a Multicenter Randomized Controlled Clinical Trial.Journal of clinical medicine · 2025Article
- Behavioral and neural effects of temporoparietal high-definition transcranial direct current stimulation in logopenic variant primary progressive aphasia: a preliminary study.Frontiers in psychology · 2025Article
- A review on the reporting and assessment of adverse effects associated with high-definition transcranial direct current stimulation.Frontiers in human neuroscience · 2025Review
- Beyond the surface: a review of transcranial temporal interference stimulation for deep brain modulation.Frontiers in neurology · 2025Review
- Personalized high-definition transcranial direct current stimulation improves cognition following carbon monoxide poisoning induced amnesia: A case report.Journal of the International Neuropsychological Society : JINS · 2024Article
- Network-targeted transcranial direct current stimulation of the hypothalamus appetite-control network: a feasibility study.Scientific reports · 2024Article
- Multi-physics simulations for investigating the effect of electrode conditions on transscleral ocular iontophoresis for particulate drug delivery into ocular tissues.Biomedical engineering letters · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
Abstract
backgroundTranscranial direct current stimulation (tDCS) is an in-demand form of neuromodulation generally regarded as safe and well tolerated. However, few studies have examined the safety, tolerability, or blinding of High Definition (HD-) tDCS, especially in older adults and at stimulation intensities of 2 milliamps (mA) or greater.
objectiveWe examined the rates of serious adverse events and common side effects to establish safety and tolerability, respectively, in HD-tDCS. Blinding was evaluated using participants' accuracy in correctly stating their condition (i.e., active or sham).
methodsThe sample included 101 older adults (M
resultsThere were no serious adverse events and no participants withdrew, suggesting that HD-tDCS meets basic safety parameters. Tolerability was comparable between active and sham HD-tDCS regardless of intensity (2 mA and 3 mA) in first session (allp > .09). Tingling was the most commonly endorsed item (59% active; 56% sham) followed by burning sensation (51% active; 50% sham), the majority of which were mild in nature. "Severe" ratings were reported in fewer than 4% of sessions. Blinding appeared adequate since there were no significant group differences between individuals correctly stating their stimulation condition (χ2 = 0.689, p = .679). The above tolerability and blinding findings generally persisted when multiple session data (i.e., 186 total sessions) were considered.
conclusionsHD-tDCS appears well-tolerated and safe with effective sham-control in older adults, even at 3 mA. These data support the use of HD-tDCS in randomized controlled trials and clinical translation efforts.
Indexed as
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What OpenQuestion holds
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.