Our brain is a fortress. Its delicate interior is completely surrounded by a protective wall called the blood-brain barrier. True to its name, the barrier separates contents in the blood and the brain ...

Stroke survivors were more likely to have little or no disability after 90 days if a clot was removed from a large brain artery followed by the injection of the clot-dissolving medication tenecteplase ...

Scientists have uncovered a surprisingly large reserve of “silent synapses” in the adult brain—unused neural connections that can be rapidly activated to store new memories.

Vertebrates have extremely different brain sizes: even with the same body size, brain size can vary a hundredfold. As a rule, mammals and birds have the largest brains in relation to their body size, ...

Let a mouse nose around a house, and it will rapidly find food and form a strategy to return to it without getting caught. Given the same task, an AI would require millions of training examples and ...

Removing a blood clot from a large brain artery, then injecting the clot-dissolving drug tenecteplase into the artery resulted in stroke survivors being more likely to have better function 90 days ...

Humans and mice share persistent brain-activity patterns in response to adverse sensory experience, scientists find, opening a window to our emotions and, perhaps, neuropsychiatric disorders. We don't ...

Unlike other fishes, many sharks, like this blacktip reef shark, have both large young and live in warm waters. This explains why sharks have brains that overlap in size with those of the warm-blooded ...