Transcranial Direct Current Stimulation: A viable therapeutic option for depression?

Abstract

Transcranial direct current stimulation (tDCS) is a form of neurostimulation that has recently regained popularity in its experimental use. tDCS utilizes a direct current applied to the scalp via electrodes to induce long-term changes to cortical excitability. A series of recent studies and reviews concluded its efficacy as a potential treatment for major depressive disorder. However, further research is required to establish effective montages and intensities of treatment to promote efficacy while reducing adverse effects. These potential future studies should include wider representative samples with more detailed reporting of adverse effects. Until then, this perspective piece argues that tDCS should continue to be considered as a potential addition to the therapies used to manage depression.