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The original was posted on /r/science by /u/chrisdh79 on 2024-12-03 13:02:18+00:00.

Original Title: Temporary scalp e-tattoos that scan brain could replace traditional EEGs | Scientists have created a liquid ink that can be sprayed directly onto a person’s scalp, forming an ultra-thin electronic tattoo. This “tattoo” EEG listens to the brain beneath it.