6 Committee comments
6.1 The Committee was mindful that depression is a very common condition and that a range of other treatments is available. It considered that this increased the need for good evidence on transcranial direct current stimulation (tDCS).
6.2 The Committee noted the inconsistency of the outcomes reported after tDCS for depression between the various studies. Together with the uncertainties about the different modes of administration and number of treatments, this underpinned the recommendation for further research.