Adult ADHD stimulation review suggests possible inattention benefits, with substantial uncertainty
A small exploratory analysis suggested improvement in inattention, while hyperactivity and impulsivity showed no significant effect. Cognitive findings varied across tasks and studies.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
The abstract suggests that transcranial direct current stimulation may affect inattention in adults with ADHD, but the evidence is tentative. Hyperactivity and impulsivity did not show a statistically significant effect. Cognitive results differed by task and study, so this review does not establish a broad improvement in ADHD symptoms or everyday functioning.
Only 2 randomized trials supplied data for the symptom meta-analysis. Small samples, substantial differences between studies and limited follow-up restrict confidence in the findings and in how long any possible benefit might last.
What the review examined
The researchers considered clinical symptoms, cognitive test performance and brain-related measurements. Only the clinical symptom data were pooled quantitatively; other outcomes were described across studies, keeping findings on test tasks distinct from changes in reported symptoms.
What remains unresolved
Stimulation protocols differed considerably, with no consistent relationship between particular settings and outcomes. Reported adverse events were generally mild and short-lived, but limited follow-up means this abstract-based review cannot fully describe longer-term effects or tolerability.
The original publication
A systematic review of transcranial direct current stimulation (tDCS) for adults with attention deficit/hyperactivity disorder (ADHD).
Zhang T, Adamis D
J Psychiatr Res · 2026
- PubMed ID
- 41610600
- Record checked
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