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Does transcranial direct current stimulation enhance cognitive and motor functions in the ageing brain? A systematic review and metaanalysis

Citation

Summers, JJ and Kang, N and Cauraugh, JH, Does transcranial direct current stimulation enhance cognitive and motor functions in the ageing brain? A systematic review and metaanalysis, Ageing Research Reviews, 25 pp. 42-45. ISSN 1568-1637 (2016) [Refereed Article]

Copyright Statement

2015 Elsevier B.V. All rights reserved.

DOI: doi:10.1016/j.arr.2015.11.004

Abstract

The use of transcranial direct current stimulation (tDCS) to enhance cognitive and motor functions has enjoyed a massive increase in popularity. Modifying neuroplasticity via non-invasive cortical stimulation has enormous potential to slow or even reverse declines in functions associated with ageing. The current meta-analysis evaluated the effects of tDCS on cognitive and motor performance in healthy older adults. Of the 81 studies identified, 25 qualified for inclusion. A random effects model meta-analysis revealed a significant overall standardized mean difference equal to 0.53 (SE=0.09; medium heterogeneity: I2=57.08%; and high fail-safe: N=448). Five analyses on moderator variables indicated significant tDCS beneficial effects: (a) on both cognitive and motor task performances, (b) across a wide-range of cognitive tasks, (c) on specific brain areas, (d) stimulation offline (before) or online (during) the cognitive and motor tasks. Although the meta-analysis revealed robust support for enhancing both cognitive and motor performance, we outline a number of caveats on the use of tDCS.

Item Details

Item Type:Refereed Article
Keywords:Meta-analysis; Transcranial direct current stimulation (tDCS); Anodal tDCS; Cognitive function; Motor function; Ageing
Research Division:Medical and Health Sciences
Research Group:Neurosciences
Research Field:Central Nervous System
Objective Division:Health
Objective Group:Specific Population Health (excl. Indigenous Health)
Objective Field:Health Related to Ageing
Author:Summers, JJ (Professor Jeffery Summers)
ID Code:105087
Year Published:2016
Funding Support:Australian Research Council (DP130104317)
Web of Science® Times Cited:18
Deposited By:Psychology
Deposited On:2015-12-07
Last Modified:2017-11-08
Downloads:0

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