tDCS devices claim to stimulate your brain and have psychological benefits, but do they really work?

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Sources:
http://www.sciencedirect.com/science/article/pii/S1388245715010883
http://bjp.rcpsych.org/content/early/2016/03/17/bjp.bp.115.164715
http://jnnp.bmj.com/content/87/4/345.short
http://ajp.psychiatryonline.org/doi/abs/10.1176/appi.ajp.2012.11071091
http://neurocritic.blogspot.co.uk/2016/04/what-we-think-we-know-and-dont-know.html
http://journal.frontiersin.org/article/10.3389/fnsys.2013.00076/full 
 
Image Sources:
https://commons.wikimedia.org/wiki/File:Winwick_Hospital,_Electroconvulsive_therapy,_1957_(14466087218).jpg
https://www.foc.us/gamer
https://www.foc.us/original-gamer