Comparing Cortical Plasticity Induced by Conventional and High-Definition 4 × 1 Ring tDCS: A Neurophysiological Study

@article{Kuo2013ComparingCP,
  title={Comparing Cortical Plasticity Induced by Conventional and High-Definition 4 × 1 Ring tDCS: A Neurophysiological Study},
  author={Hsiao-I Kuo and Marom Bikson and Abhishek Datta and Preet Minhas and Walter Paulus and Min-Fang Kuo and Michael A. Nitsche},
  journal={Brain Stimulation},
  year={2013},
  volume={6},
  pages={644-648}
}

Figures and Tables from this paper

Spatial and polarity precision of concentric high-definition transcranial direct current stimulation (HD-tDCS)

Using a range of concentric HD-tDCS montages, it is shown that cortical region of influence can be controlled while balancing other design factors such as intensity at the target and uni-directionality, which can provide categorical improvements in targeting compared to conventional tDCS.

Preconditioning with Cathodal High-Definition Transcranial Direct Current Stimulation Sensitizes the Primary Motor Cortex to Subsequent Intermittent Theta Burst Stimulation

Results demonstrate that preintervention with cathodal HD-tDCS primes the motor cortex for long-term potentiation induced by iTBS and is a potential strategy for improving the clinical outcome to guide therapeutic decisions.

a-tDCS Differential Modulation of Corticospinal Excitability: The Effects of Electrode Size

The effects of transcranial direct current stimulation on corticospinal and cortico-cortical excitability and response variability: Conventional versus high-definition montages

Future tDCS studies should utilise conventional tDCS to minimise intra-individual variability, ensuring tDCS after-effects are true changes in CSE and cortico-cortical excitability.

Effects of electrode displacement in high-definition transcranial direct current stimulation: A computational study

  • H. SeoDonghyeon KimS. Jun
  • Biology
    2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
  • 2016
The ways in which excitability in the target area persisted even with increased distance from the active electrode were discovered, including by means of stimulus-induced electric fields and membrane polarization.

Effect of transcranial direct current stimulation (tDCS) on MMN-indexed auditory discrimination: a pilot study

MMN elicited by changes in auditory pitch was found to be enhanced after receiving anodal tDCS compared to ‘sham’ stimulation, with the effects being evidenced in individuals with relatively reduced (vs. increased) baseline amplitudes and with relatively small pitch deviants.

Transcranial Direct Current Stimulation: Protocols and Physiological Mechanisms of Action

It will be discussed how specific stimulation parameters, like stimulation intensity, duration, electrode size, and configuration, including recently developed new stimulation protocols, determine the direction, magnitude, and duration of effects.

Variability in Response to Transcranial Direct Current Stimulation of the Motor Cortex

...

References

SHOWING 1-10 OF 22 REFERENCES

How does transcranial DC stimulation of the primary motor cortex alter regional neuronal activity in the human brain?

TDCS is an effective means of provoking sustained and widespread changes in regional neuronal activity and the extensive spatial and temporal effects of tDCS need to be taken into account when tDCS is used to modify brain function.

GABAergic modulation of DC stimulation‐induced motor cortex excitability shifts in humans

It is shown that pharmacological strengthening of GABAergic inhibition modulates selectively the after‐effects elicited by anodal tDCS, which results in late‐occurring excitability enhancement in the human motor cortex.

A pilot study of the tolerability and effects of high-definition transcranial direct current stimulation (HD-tDCS) on pain perception.

Transcranial direct current stimulation of the motor cortex induces distinct changes in thermal and mechanical sensory percepts

Transcranial direct current stimulation: State of the art 2008

Transcranial current stimulation focality using disc and ring electrode configurations: FEM analysis.

The concentric-ring design may provide an optimized configuration for targeted modulation of superficial cortical neuron soma hyper/depolarizing, at the expense of increased total surface current.