Scientists have identified a brain protein that may help Alzheimer’s spread, revealing a potential new target for slowing the disease’s progression. Alzheimer’s disease is closely linked to the accumulation of a toxic form of the protein Tau inside the brain. As Tau damage reaches additional brain regions, more neurons are harmed, symptoms intensify, and the [...]

Biological defenses make losing weight and keeping it off unusually difficult. Better treatments, healthier environments, and sustainable habits may support long-term health more effectively than willpower alone. For years, weight loss has been framed as a simple test of discipline: consume fewer calories and exercise more. Modern research, however, shows that body weight is regulated [...]

A reverse prediction test suggests that supposedly brainlike AI models may rely on visual strategies the primate brain does not use. Artificial intelligence can sometimes predict how the brain responds when people recognize objects. But that resemblance may hide an important weakness: the internal workings of today’s vision models do not necessarily match the processes [...]

Aging appears to alter how key cerebellar neurons fire, with measurable effects on movement and coordination. Aging often brings slower movement, weaker balance, and reduced agility, but the brain changes behind these losses have been difficult to identify. McGill University researchers have now directly linked declining activity in Purkinje cells, an important type of neuron [...]

New study shows what happens in our brains as we track multiple conversations

The post Some People Are Better at Eavesdropping Than Others appeared first on Nautilus.

Keith Thomas can move arms and hands, and feel sensation of touch after ‘double neural bypass’ and months of training

A man who was paralysed from the chest down in a swimming accident six years ago has been able to feed himself and drink from a cup thanks to a brain implant that bypasses his spinal cord injury.

Keith Thomas of Massapequa, New York, could not lift his arms off his wheelchair when he agreed to trial the technology in 2021, but after surgery to implant electrodes in his brain and many months of training, he was able to move the limbs again.

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© Photograph: Feinstein Institutes for Medical Research

© Photograph: Feinstein Institutes for Medical Research

© Photograph: Feinstein Institutes for Medical Research