Quadriplegic patient uses brain signals to feed himself with two advanced prosthetic arms

For more than 30 years—following an accident in his teens—Robert “Buz” Chmielewski has been a quadriplegic with minimal movement and feeling in his hands and fingers. But last month he was able to manipulate two prosthetic arms with his brain and feed himself dessert. Buz’s accomplishment marks a big step […]

Brain regions with impaired blood flow have higher tau levels

In Alzheimer’s disease, impaired blood flow to brain regions coincides with tau protein buildup. This relationship strengthens as cognition declines, according to new research published in JNeurosci. Vascular function declines and amyloid-β and tau protein accumulate as Alzheimer’s disease progresses, resulting in neuron death. Like the proverbial chicken and egg, […]