An AI "mind-reading" tool can reconstruct what you're looking at based on a brain scan

A new AI tool can guess what you're looking at just by analyzing your brain scans--and recreate that image with remarkable precision. It can go the other way too, and predict a person's brain activity based on what they're looking at. In the image above, for example, the left-hand image of each pair is what the user actually saw--and its right-hand counterpart is what the model recreated based on the brain scan. Michal Irani, who developed the tool with her colleagues at the Weizmann Institute of Science in Rehovot, Israel, hopes her "mindreading" tool will ultimately reveal more about how the brain works, and could perhaps be used to help locked-in people communicate, or allow scientists to recreate the content of dreams. Judy Illes, a neuroethicist and professor of neurology at the University of British Columbia in Canada, who was not involved in the research, describes the work as "magnificent." "The idea [of using this approach] to help people with neurologic conditions therapeutically is tremendously exciting," she says. But other scientists warn that a similar approach could be used to reveal the inner thoughts and mental imagery of people, potentially without their consent. "The results seem very impressive," says Tommy Sprague, a neuroscientist at the University of California Santa Barbara. "But if there's a way to surreptitiously extract information about what you're thinking about, then 150 years of sci-fi can come true anytime, and that's worrisome in a lot of ways."