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Body & Brain

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brain scans

PLAQUE BUSTER  In a trial of 165 people, brain scans showed reductions in amyloid-beta plaques (red) in people given the antibody aducanumab compared with a placebo. Higher doses caused more amyloid reduction. 

skull

BLOOD FLOW The internal carotid arteries pass into the skull through two tiny holes (shown with arrows on this human skull). Scientists measured these openings in hominid fossils to estimate changes in blood flow rates to the brain across human evolution.

dogs with MRI machine

GOOD DOGS  To see how dogs process speech, these pooches were trained to undergo MRI brain scans. The results: Dogs are a lot like humans.  

Body & Brain

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