The brain 9 free1/2/2023 ![]() ![]() ![]() In it, they urge the DIY community to be cautious and skeptical. Thirty-nine scientists - many of whom study the effects of tDCS - have signed on to a letter published online in the journal Annals of Neurology. yumikrum / Flickr Neurologists think tDCS could be riskier than it seems Reddit threads and YouTube videos abound with tutorials and results of self-experimentation.īut now researchers are worried that this DIY movement is getting ahead of the science, putting people at risk of burns and poorly understood changes to the brain. It only takes a few cheap components from an electronics store to build a stimulator at home. Anecdotally, users report that tDCS also helps them ease into a flow state (i.e., being “in the zone”), where they can get many tasks done without distraction. This small but growing community cites as its inspiration studies that have found some tentative promise for tDCS to enhance memory, alertness, and the ability to learn new tasks, and to decrease symptoms of anxiety and depression. The technical term is transcranial direct current stimulation (or tDCS), and it involves hooking up electrodes to the skull and then turning on a small electric current, typically powered by a 9-volt battery. Then there are the DIY brain stimulators. Others load up on dietary supplements (also unlikely to work). Some people believe (naively) in the power of brain training games. Cognitive enhancement techniques come in all flavors. ![]()
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