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The problem is the outcome measures for these sort of things are always kind of murky. "Signs of Responsiveness Not Previously Seen Before Intervention" might mean more eye twitching than average, etc. These aren't people who suddenly wake up and start talking after tDCS

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I guess the next step is to set up blind studies, where one doctor sets up the apparatus for either a real or sham treatment, and then leaves the room, then another doctor comes in with the family and runs the treatment without knowing which treatment is being administered.

Alternatively, the treatment is administered (or not) by a second doctor in another room who can't communicate with those in the room.

> These aren't people who suddenly wake up and start talking after tDCS

Did you actually read the article?

"Some recovered the ability to communicate"

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