Electrode and method for transcranial current stimulation

An electrode for transcranial current stimulation, the electrode comprising:

• at least two pins for contacting the skin of a living or human being, and
• a current delivering unit connected to the at least two pins,
• wherein the current delivering unit is configured to estimate the corresponding range of the respective contact impedance with respect to the skin for each of the at least two pins or to analyze the corresponding level of the respective contact impedance with respect to the skin for each of the at least two pins, and
• wherein the current delivering unit is configured to select a set of the at least two pins for delivering a set of partial currents to achieve the desired current based on the estimated corresponding range of the respective contact impedance with respect to the skin for each of the at least two pins or based on the analyzed corresponding level of the respective contact impedance with respect to the skin for each of the at least two pins.