The effects of transcranial direct current stimulation on the cognitive functions in older adults with mild cognitive impairment: A pilot study

Pablo Cruz Gonzalez, Kenneth N.K. Fong, Ted Brown

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Objective. The aim of this pilot study was to investigate whether the use of anodal transcranial direct current stimulation (tDCS) on the left dorsolateral prefrontal cortex could boost the effects of a cognitive stimulation (CS) programme using a tablet on five older adults with mild cognitive impairment (MCI). Method. A single-subject study of A-B-C-A design was used. After the baseline with the administration of CS (phase A), a sham treatment with CS was applied (B). Following the withdrawal of sham treatment, tDCS was introduced in combination with CS (C). Finally, phase A was replicated a second time. Results. tDCS had a significant effect on processing speed, selective attention, and planning ability tasks in terms of performance and completion time. Conclusion. tDCS appears to have a positive impact on some cognitive components in CS in persons with MCI. Further study on its long-term effects and generalization of power to daily activities is warranted.

Original languageEnglish
Article number5971385
Number of pages14
JournalBehavioural Neurology
Publication statusPublished - 15 Mar 2018

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