Science writer Sally Adee provides some background on her New Scientist article describing her experience with a DARPA program that uses targeted electrical stimulation of the brain during training exercises to induce "flow states" and enhance learning. The "thinking cap" is something like the tasp of science fiction, and the experimental evidence for it as a learning enhancement tool is pretty good thus far -- and the experimental subjects report that the experience feels wonderful (Adee: "the thing I wanted most acutely for the weeks following my experience was to go back and strap on those electrodes.")
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We don’t yet have a commercially available “thinking cap” but we will soon. So the research community has begun to ask: What are the ethics of battery-operated cognitive enhancement? Last week a group of Oxford University neuroscientists released a cautionary statement about the ethics of brain boosting, followed quickly by a report from the UK’s Royal Society that questioned the use of tDCS for military applications. Is brain boosting a fair addition to the cognitive enhancement arms race? Will it create a Morlock/Eloi-like social divide where the rich can afford to be smarter and leave everyone else behind? Will Tiger Moms force their lazy kids to strap on a zappity helmet during piano practice?
After trying it myself, I have different questions. To make you understand, I am going to tell you how it felt. The experience wasn’t simply about the easy pleasure of undeserved expertise. When the nice neuroscientists put the electrodes on me, the thing that made the earth drop out from under my feet was that for the first time in my life, everything in my head finally shut the fuck up.