Quantitative Review Finds No Evidence of Cognitive Effects in Healthy Populations From Single-session Transcranial Direct Current Stimulation (tDCS)

@article{Horvath2015QuantitativeRF,
  title={Quantitative Review Finds No Evidence of Cognitive Effects in Healthy Populations From Single-session Transcranial Direct Current Stimulation (tDCS)},
  author={Jared C. Horvath and Jason D. Forte and Olivia L. Carter},
  journal={Brain Stimulation},
  year={2015},
  volume={8},
  pages={535-550}
}

The effect of the interval-between-sessions on prefrontal transcranial direct current stimulation (tDCS) on cognitive outcomes: a systematic review and meta-analysis

TLDR
A systematic review and meta-analysis was performed of experimental studies published in PubMed, Science Direct, and other databases from the first data available to February 2016 to show that anodal vs. sham tDCS significantly decreased response times and increased accuracy, and specifically for the executive functioning tasks, in a sample of healthy participants and neuropsychiatric patients.

Cognitive Effects of Transcranial Direct Current Stimulation in Healthy and Clinical Populations: An Overview.

TLDR
The tDCS literature currently indicates that the effects of tDCS on cognitive measures are less robust and less predictable compared with the more consistent effects on motor outcomes and a notable difference in the consistency of single-session and longitudinal designs.

Limits to tDCS effects in language :

Transcranial direct current stimulation (tDCS) is a method of non-invasive brain stimulation widely used to modulate cognitive functions. Recent studies, however, suggests that effects are
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Investigating the Role of Current Strength in tDCS Modulation of Working Memory Performance in Healthy Controls

TLDR
Results revealed no significant improvements in participants’ accuracy, but a significant interaction was found with respect to current strength and time for accurate reaction time, providing partial support for the hypothesis that current strength may affect aspects of WM performance.

Can transcranial direct current stimulation enhance outcomes from cognitive training? A randomized controlled trial in healthy participants.

TLDR
A randomized, controlled trial explored the potential synergistic effects of CT combined with tDCS in healthy participants and confirmed prior reports of enhancement of cognitive function during tDCS stimulation, suggesting that active tDCS may have a role in further enhancing outcomes.

Does excitatory fronto-extracerebral tDCS lead to improved working memory performance?

TLDR
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TLDR
It is demonstrated that posterior tDCS can alter visuo-spatial WM performance by modulating the underlying neural activity, and can be considered an important step toward a better understanding of the mechanisms involved in tDCS-induced modulations of cognitive processing.
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