Brand New Cortical Neurons
Are new neurons created in the adult brain?For a long time, everyone thought the answer was "no". Then, about 15 years ago, we learned that neurogenesis does occur in the adult brain, but it was thought to be limited to two very small regions, the dentate gyrus and the sub-ventricular zone. Except in cases of injury, when adult neurogenesis had been reported elsewhere.Now Guo et al look set to overturn this orthodoxy in a new Journal of Neuroscience paper, as they found ongoing neurogenesis in h