The basics of transcranial Direct Current Stimulation (tDCS):
Transcranial Direct-Current Stimulation (tDCS) is a portable, wearable brain stimulation technique that delivers a low electric current to the scalp. A fixed current between 1 and 2 mA is typically applied1. tDCS works by applying a positive (anodal) or negative (cathodal) current via electrodes to an area. tDCS is a neuromodulation technique that produces immediate and lasting changes in brain function. The position of the anode and cathode electrodes on the head is used to set how current flows to specific brain regions. The current delivered by tDCS is NOT strong enough to trigger an action potential in a neuron; instead its “sub-threshold” .....
