I'm not sure why the press release says that, but that is not t"DC"S is, and you're right there would be no reason to do that for any transcranial electrical st

I'm not sure why the press release says that, but that is not t"DC"S is, and you're right there would be no reason to do that for any transcranial electrical stimulation protocol. But in the paper, it is pretty clear they do hd-tDCS. Spatially there may be an attempt to target more specifically areas that are activated during normal flight activity, but there is no attempt to "transfer activity" which has a huge temporal and amplitude implication.