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Transcrnial Direct Current Stimulation (tDCS)
Transcranial direct current stimulation (tDCS) is non-invasive technique to modulate neuronal excitability. The stimulation is generated by a direct current stimulator and delivered through a pair or an array of surface electrodes placed on the scalp. Depending on the electrode polarity, the stimulation can either decrease or increase excitability, probably by hyperpolarization or depolarization of the underlying neuronal populations.
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