Anodal tDCS administration. Anodal (b) and cathodal (c) electrodes with 35 cm2 size are put on F3 and right supraorbital region, respectively. A head strap is used (d) for convenience and reproducibility, and a rubber band (e) for reducing resistance.
Research shows increasing evidence for tDCS as a treatment for depression.[2][3][4] There is mixed evidence about whether tDCS is useful for cognitive enhancement in healthy people. There is no strong evidence that tDCS is useful for memory deficits in Parkinson's disease and Alzheimer's disease,[5] non-neuropathic pain,[6] nor for improving arm or leg functioning and muscle strength in people recovering from a stroke.[7] There is emerging supportive evidence for tDCS in the management of schizophrenia – especially for negative symptoms.[8][9]
^Liu Y, Gu N, Cao X, Zhu Y, Wang J, Smith RC, Li C (February 2021). "Effects of transcranial electrical stimulation on working memory in patients with schizophrenia: A systematic review and meta-analysis". Psychiatry Research. 296: 113656. doi:10.1016/j.psychres.2020.113656. PMID33360429. S2CID229367754.