But, from what I can see, there are ‘wearables’ and then there are other ‘wearables’.
I would hate to equate these so called ‘brain wearables’ with a smartwatch or fitness tracker. To I there is a fundamental differences. Brain wearables are trying, via technology and some form of direct electromagnetic stimulation, to modify your behavior. A fitness tracker or smartwatch ONLY tries to ‘interfere’ with your behavior via motivation and/or shame. BIG difference.
I am familiar with tDCS technology. I have talked about it in my ‘Central Pain’ book. tDCS can work. But, with wearables the manufacturers have to be ULTRA cautious. They don’t want folks accidently frying their brains! So, they have to severely constrain the power output they deliver. And that is the crunch. tDCS, TMS or ECT administered under supervision can — and will — use significantly more juice. That in my opinion is what will cripple brain wearables. They will not be able to deliver adequate ‘juice’ to really make a difference.
So keep this in mind as you are reading about and evaluating brain wearables.