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4d ago
Ultrafast MRI uncovers brain signal direction: New scan may help decode autism, Alzheimer's and hallucinations
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Researchers at the Champalimaud Foundation in Lisbon have for the first time managed to identify with an imaging technique whether nervous impulses in the brain of rats are flowing in a "bottom-up" (feedforward), carrying information about visual input, or a "top-down" (feedback) direction, carrying information about expectations or predictions on a given task or about the perception of the world around us. Their results, published in Nature Communications, could have important implications for
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