Prior to placing any electrodes, you have to possess a firm knowledge of position codes, e.g.10/20 International System.Position codes will allow you to not only estimate, but precisely determine the electrodes placement.  In order to measure your head, you will need to use anatomical landmarks, presented here https://www.trans-cranial.com/tct/end-users-patients/tdcs-stimulator-products/, or on our site:Studied Electrode tDCS Placements. It is also advisable to do proper research regarding the structure and function of each cortex.

A “montage” is described as a possible tDCS placement of the electrodes (cathode and anode) whereas a protocol is the “montage”, current, and the time of the treatment. One of the protocols which has been widely researched is the one where anode stimulates dorso-lateral pre-frontal cortex, i.e. F3 (positive:red) whereas cathode (black) is placed on top of the right eyebrow Fp2 position. The current being used in this protocol is 1mA whereas the time needed is 20 minutes. This protocol is used to enhance different cognitive functions, including learning, control of the impulses,memory, and reasoning.

The duration of the sessions can vary from five to thirty minutes.  Most of the research sessions lasted between 20 to 30 minutes, but clinical research has shown that even after five minutes, tDCS can produce effects that will last well after the treatment.

In all of the scientific research, the power of the current ranged between 0.5mA – 2.0mA. Research conducted shows that a current less than 0.5mA will not provide noticeable results. As for currents that are more than 2.0mA, there is still not enough research which shows that they are safe and efficient. Thus said, the belief among the scientists is that longer lasting effects (after the session is over) can be produced using higher currents – up to 2mA.