Inclusion criteria:
Age of 18 to 60 years
Sign the informed consent form
Post-traumatic stress disorder
Having a PTSD checklist version (PCL-5) greater than 50
Experienced no change in psychosocial treatments for 2 months before tDCS
Experienced no change in psychotropic medication
Exclusion criteria:
Axis 1 psychiatric disorders or personality disorders.
A history of a significant neurological or medical disorder such as seizure, brain tumors, traumatic brain injury , stroke, Parkinson’s disease, dementia, Huntington’s chorea, multiple sclerosis
Changed medications in the 8 weeks prior to commencement of the trial
Implanted medication pumps of any sort that would increase the risk of tDCS
The risk of Seizure with any reasons, high Intracranial pressure, The history of epilepsy or Seizure in the first relatives, any metal in Head, brain trauma, history of loss of consciousness for more than 5 minutes
Pregnancy, breastfeeding
High risk of Suicide