Transcranial direct current stimulation reduces ischemia‐induced sensory disturbance in the hands of healthy subjects

2021 ◽  
Author(s):  
Toru Sunagawa ◽  
Akio Ueda ◽  
Hiroshi Kurumadani ◽  
Hanan Ibrahim Zehry ◽  
Shota Date ◽  
...  
Keyword(s):  
Direct Current ◽  
Transcranial Direct Current Stimulation ◽  
Healthy Subjects ◽  
Sensory Disturbance ◽  
Direct Current Stimulation

scholarly journals Transcranial direct current stimulation improves the QT variability index and autonomic cardiac control in healthy subjects older than 60 years

2016 ◽  
Vol Volume 11 ◽  
pp. 1687-1695 ◽  
Author(s):  
Gianfranco Piccirillo ◽  
Cristina Ottaviani ◽  
Claudia Fiorucci ◽  
Nicola Petrocchi ◽  
Federica Moscucci ◽  
...  
Keyword(s):  
Direct Current ◽  
Transcranial Direct Current Stimulation ◽  
Healthy Subjects ◽  
Direct Current Stimulation ◽  
Cardiac Control ◽  
Qt Variability Index ◽  
Qt Variability ◽  
Variability Index

Dynamic modulation of intrinsic functional connectivity by transcranial direct current stimulation

2012 ◽  
Vol 108 (12) ◽  
pp. 3253-3263 ◽  
Author(s):  
Bernhard Sehm ◽  
Alexander Schäfer ◽  
Judy Kipping ◽  
Daniel Margulies ◽  
Virginia Conde ◽  
...  
Keyword(s):  
Functional Connectivity ◽  
Direct Current ◽  
Transcranial Direct Current Stimulation ◽  
Healthy Subjects ◽  
Time Course ◽  
Cortical Excitability ◽  
Eigenvector Centrality ◽  
Resting State Functional Connectivity ◽  
Brain Areas ◽  
Direct Current Stimulation

Transcranial direct current stimulation (tDCS) is a noninvasive brain stimulation technique capable of modulating cortical excitability and thereby influencing behavior and learning. Recent evidence suggests that bilateral tDCS over both primary sensorimotor cortices (SM1) yields more prominent effects on motor performance in both healthy subjects and chronic stroke patients than unilateral tDCS over SM1. To better characterize the underlying neural mechanisms of this effect, we aimed to explore changes in resting-state functional connectivity during both stimulation types. In a randomized single-blind crossover design, 12 healthy subjects underwent functional magnetic resonance imaging at rest before, during, and after 20 min of unilateral, bilateral, and sham tDCS stimulation over SM1. Eigenvector centrality mapping (ECM) was used to investigate tDCS-induced changes in functional connectivity patterns across the whole brain. Uni- and bilateral tDCS over SM1 resulted in functional connectivity changes in widespread brain areas compared with sham stimulation both during and after stimulation. Whereas bilateral tDCS predominantly modulated changes in primary and secondary motor as well as prefrontal regions, unilateral tDCS affected prefrontal, parietal, and cerebellar areas. No direct effect was seen under the stimulating electrode in the unilateral condition. The time course of changes in functional connectivity in the respective brain areas was nonlinear and temporally dispersed. These findings provide evidence toward a network-based understanding regarding the underpinnings of specific tDCS interventions.

scholarly journals Bilateral frontal transcranial direct current stimulation: Failure to replicate classic findings in healthy subjects

2009 ◽  
Vol 120 (1) ◽  
pp. 80-84 ◽  
Author(s):  
Michael Koenigs ◽  
Dede Ukueberuwa ◽  
Paul Campion ◽  
Jordan Grafman ◽  
Eric Wassermann
Keyword(s):  
Direct Current ◽  
Transcranial Direct Current Stimulation ◽  
Healthy Subjects ◽  
Direct Current Stimulation
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