IRCT2016050927820N1 IRCT 2016-10-16 Vice Chancellors of the University of Social Welfare and Rehabilitation Sciences The effectiveness of tDCS on naming ability of patients with CVA induced aphasia. The comparison of transcranial direct current stimulation(tDCS) effect over the right and left inferior frontal gyrus (IFG) and superior temporal gyrus (STG) on the accuracy and latency of picture naming in Persian patients with CVA induced aphasia. 2016-10-22 anticipated 16 Complete https://irct.ir/trial/22714 interventional Randomization: Not randomized, Blinding: Single blinded, Placebo: Used, Assignment: Crossover, Purpose: Treatment, Other design features: This study has the cross over design, that means the target and control group are the same. N/A stroke. The intervention and control group are the same. Subjects will be received 5 consecutive real stimulation sessions (20 min, 1mA), and 5 consecutive sham stimulation sessions. The order of conditions will be randomized across subjects, and the all of patients will be blinded to the type of tDCS. There is a 7-day intersession interval between the real and the sham conditions..