Many neurons make light work?: Until recently we thought the cortex behaved like a dictatorship, governing every move we made. But now some think the central nervous system may have more in common with a democracyFeatures
Breaching the blood-brain barrier: The brain has gatekeepers that let in essential nutrients but keep out substances in the blood that would interfere with its nerve cells. Studies of this barrier may lead to ways of supplying drugs to the otherwise inacFeatures
The intricate wiring that lets us move: Studies of the complex nerve circuits in one part of the brain are beginning to reveal why people with Parkinson's and Huntington's diseases make bizarre movementsFeatures