The effects of transcranial direct current stimulation on global cognitive function, visuospatial function, and executive function in patients with mild cognitive impairment and Alzheimer’s disease: a meta-analysis - Report - MDSpire
Advertisement
The effects of transcranial direct current stimulation on global cognitive function, visuospatial function, and executive function in patients with mild cognitive impairment and Alzheimer’s disease: a meta-analysis
Clinical Report: Impact of tDCS on Cognitive Abilities in AD and MCI
Overview
This meta-analysis evaluates the efficacy of transcranial direct current stimulation (tDCS) in enhancing cognitive functions in patients with Alzheimer's disease (AD) and mild cognitive impairment (MCI). Results indicate significant improvements in global cognition, with preliminary evidence suggesting benefits for visuospatial skills, while findings for attention and executive functions remain inconclusive.
Background
Alzheimer's disease and mild cognitive impairment are prevalent neurodegenerative disorders with limited effective treatment options. Current pharmacological therapies often have adverse effects and do not significantly improve cognitive function. tDCS presents a non-invasive alternative that may enhance cognitive abilities, warranting further investigation into its efficacy and application in clinical settings.
tDCS significantly improved global cognition in patients with AD and MCI (SMD = 0.49).
Preliminary evidence suggests a significant effect on visuospatial ability (SMD = -0.75).
Attention showed a small effect with tDCS (SMD = -0.33).
No significant effect was observed for executive function (SMD = 0.09).
Future studies should utilize multi-test, domain-specific neuropsychological assessments.
Clinical Implications
Clinicians should consider tDCS as a potential adjunctive therapy for enhancing cognitive function in patients with AD and MCI. However, the inconclusive results for attention and executive functions highlight the need for further research to establish comprehensive treatment protocols.
Conclusion
tDCS appears to be a promising intervention for improving global cognition in AD and MCI patients, though further studies are necessary to clarify its effects on specific cognitive domains.
