 For the application of tDCS, the anode will be positioned on DLPFC and cathode in the contralateral supraorbital region. Parameters of intensity and stimulation duration of the current used were previously established in humans: intensity 1mA and duration of 10 minutes. In sham stimulation, sessions will use the same procedures of real tDCS application, however the stimulation device will be switched off five seconds after the start. 