Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation technique that has shown initial therapeutic effects in several neurological conditions. The main mechanism underlying these therapeutic effects is the modulation of cortical excitability. Therefore, online monitoring of cortical excitability would help guide stimulation parameters and optimize its therapeutic effects. In the present article we review the use of a novel device that combines simultaneous tDCS and EEG monitoring in real time.
Schestatsky, P., Morales-Quezada, L., Fregni, F. Simultaneous EEG Monitoring During Transcranial Direct Current Stimulation. J. Vis. Exp. (76), e50426, doi:10.3791/50426 (2013).