The tDCS will be delivered using neuroConn stimulators. A 1 milliamp (mA) current will be delivered for 20 minutes through damp sponges soaked in saline solution and attached to the head of the patient using a cap. One electrode will be placed on the forehead over the LDLPFC, and the other on the left shoulder blade or left cheek to record baseline electrical signal. In the sham condition, there will be a brief current change at the beginning and end of each stimulation session, in order to mimic the effect of an actual stimulation, but no current will be delivered in between.