Instead of a small number of large, powerful processors working
continuously, the
brain contains billions of relatively slow, small processors — its
neurons — which consume power only when activated.
«What was really exciting is that in both old and young
brains, a small percentage of the grafted cells retained their «stemness» feature and
continuously produced new
neurons,» said Bharathi Hattiangady, assistant professor at the Texas A&M College of Medicine and co-first author of the study.