The brain quickly adapts to change by predicting multiple futures, neuron by neuron. These finding could lead to AI that can do the same thing. We constantly make decisions. Some seem simple: I booked dinner at a new restaurant, but I’m hungry now. Should I grab a snack and risk losing my appetite

How consciousness arises in the brain is no clearer after two big theories go head-to-head, but the competition’s design could push the field forward. “Theories are like toothbrushes,” it’s sometimes said. “Everybody has their own and nobody wants to use anybody else’s.” It’s a joke, but when it

The drugs disrupted communication between the brain and immune system to lower stress in mice. From depression to post-traumatic stress disorder, psychedelic drugs combined with therapy might ease symptoms. Once a counterculture outcast, these drugs are undergoing a renaissance in medicine for

The cables connecting neurons act like independent ‘mini-computers’ to store different types of information. The brain’s rules seem simple: Fire together, wire together. When groups of neurons activate, they become interconnected. This networking is how we learn, reason, form memories, and adapt to

Two studies found stem-cell therapies were safe and reduced symptoms, but bigger trials are still needed. Grabbing a coffee cup seems easy. But you need to be able to move your hand, stretch it out, and keep it steady. These movements are difficult for people with Parkinson’s disease. The disorder