TY - JOUR T1 - Methodological Dimensions of Transcranial Brain Stimulation with the Electrical Current in Human TT - JF - BCN JO - BCN VL - 4 IS - 3 UR - http://bcn.iums.ac.ir/article-1-403-en.html Y1 - 2013 SP - 190 EP - 208 KW - Transcranial Electrical Stimulation (tES) KW - Transcranial Direct Current Stimulation (tDCS) KW - Transcranial Alternating Current Stimulation (tACS) KW - Non Invasive Brain Stimulation (NIBS) N2 - Transcranial current stimulation (TCS) is a neuromodulation method in which the patient is exposed to a mild electric current (direct or alternating) at 1-2 mA, resulting in an increase or a decrease in the brain excitability. This modi.cation in neural activities can be used as a method for functional human brain mapping with causal inferences. This method might also facilitate the treatments of many neuropsychiatric disorders based on its inexpensive, simple, safe, noninvasive, painless, semi-focal excitatory and inhibitory effects. Given this, a comparison amongst different brain stimulation modalities has been made to determine the potential advantages of the TCS method. In addition, considerable methodological details on using TCS in basic and clinical neuroscience studies in human subjects have been introduced. Technical characteristics of TCS devices and their related accessories with regard to safety concerns have also been well articulated. Finally, some TCS application opportunities have been emphasized, including its potential use in the near future M3 ER -