Data Synthesis in Meta-Analysis may Conclude Differently on Cognitive Effect From Transcranial Direct Current Stimulation

  title={Data Synthesis in Meta-Analysis may Conclude Differently on Cognitive Effect From Transcranial Direct Current Stimulation},
  author={Pratik Y. Chhatbar and Wuwei Feng},
  journal={Brain Stimulation},

Figures and Tables from this paper

Does Transcranial Direct Current Stimulation Improve Healthy Working Memory?: A Meta-analytic Review

It is concluded that the primary WM enhancement potential of tDCS probably lies in its use during training, and a more comprehensive and arguably more sensitive meta-analysis is reported.

Inter-Individual Variability in tDCS Effects: A Narrative Review on the Contribution of Stable, Variable, and Contextual Factors

Due to its safety, portability, and cheapness, transcranial direct current stimulation (tDCS) use largely increased in research and clinical settings. Despite tDCS’s wide application, previous works

The modulatory effect of sleep on transcranial direct current stimulation-enhanced learning.

Data suggests that tDCS-effect is greater in a brain which is in a non-optimal state in terms of circadian misalignment and prolonged wake, and in this context, sleep may be responsible for variabilities in tDCS studies.

No Significant Effect of Prefrontal tDCS on Working Memory Performance in Older Adults

The results suggest that a single session of tDCS over the dlPFC is unlikely to improve working memory, as assessed by an N-back task, in old age.

Combined effects of theta-burst stimulation with transcranial direct current stimulation of the prefrontal cortex: study protocol of a randomized, double-blinded, sham-controlled trial using 99mTc-ECD SPECT

The results from this trial can guide future therapeutic protocols for NIBS treatments stimulating the PFC by demonstrating that the combination of NIBS techniques is feasible, tolerable, and can lead to greater enhancement of PFC activity.

Optimizing Transcranial Direct Current Stimulation Protocols to Promote Long-Term Learning

Preliminary evidence is reviewed that these consolidation effects can be even further enhanced via strategically spaced out stimulation sessions, which take advantage of a long-held tenet in the literature that distributed learning produces better outcomes than massed learning.

The stimulated social brain: effects of transcranial direct current stimulation on social cognition

This review presents the state‐of‐the‐art of the field of tDCS research in social cognition and aims to gather knowledge of the potential of tDCs to modulate social functioning and social decision making in healthy humans, and to inspire future research investigations.



Repeated sessions of noninvasive brain DC stimulation is associated with motor function improvement in stroke patients.

The findings of this study support previous research showing that tDCS is significantly associated with motor function improvement in stroke patients; and support that consecutive daily sessions of tDCS might increase its behavioral effects.

Anodal Transcranial Direct Current Stimulation of the Prefrontal Cortex Enhances Complex Verbal Associative Thought

Evidence is provided that anodal stimulation of the left dorsolateral prefrontal cortex can improve performance on a complex verbal problem-solving task believed to require significant executive function capacity.

Electrical Brain Stimulation Improves Cognitive Performance by Modulating Functional Connectivity and Task-Specific Activation

In conclusion, atDCS modulates endogenous low-frequency oscillations in a distributed set of functionally connected brain areas, possibly inducing more efficient processing in critical task-relevant areas and improved behavioral performance.

Transcranial direct current stimulation of the unaffected hemisphere in stroke patients

Results suggest that the appropriate modulation of bihemispheric brain structures can promote motor function recovery, and reduce the excitability in the unaffected hemisphere by cathodal transcranial direct current stimulation could result in motor performance improvement in stroke patients.

Bihemispheric brain stimulation facilitates motor recovery in chronic stroke patients

For adult patients with ischemic stroke treated at least 5 months after their first and only stroke, bihemispheric tDCS and simultaneous physical and occupational therapy given over 5 consecutive sessions significantly improves motor function as measured by the Upper Extremity Fugl-Meyer assessment.

Altering Automatic Verbal Processes with Transcranial Direct Current Stimulation

Background: Word retrieval during verbal fluency tasks invokes both automatic and controlled cognitive processes. A distinction has been made between the generation of words clusters and switches

Transcranial direct current stimulation over Broca ’ s region improves phonemic and semantic fl uency in healthy individuals

  • Neuroscience
  • 2011

Transcranial direct current stimulation over Broca’s region improves phonemic and semantic fluency in healthy individuals. Neuroscience 2011;183:64e70

  • 2011