Again, the takeaway message for me being, ‘your mileage may vary’ and, ‘are you sure it’s doing what you think it is?’.

In my experience, the best way to determine whether tDCS was effective was through stimulating the visual cortex and playing a vision training game called Ultimeyes for the iPad. I came across this study (http://www.ncbi.nlm.nih.gov/pubmed/18491714) when I first started reading about tDCS and thought I would try it myself. After just one session, I could clearly see the difference in my ability to perceive low contrast objects in the app, and this carried over to recognizing features and objects outside as well, and especially in low light conditions.

via Three things to know before trying tDCS — tDCS and Neurodynamics — Medium.