New Scientist TV: Mind-reading movies reconstruct what you see: The team first measured brain activity produced while a person watched hours of movies. They used this data to create a model that can predict the neural activity that would be elicited by any given movie.
Then brain activity was recorded while a volunteer watched a new set of videos and the model was used to select the clips they were most likely viewing. Combining the model's best guesses produced a blurry but reasonable approximation of the original clip.
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