As the human body fine-tunes its neurological wiring, nerve cells often must fix a faulty connection by amputating an axon — the "business end" of the neuron that sends electrical impulses to tissues...
"I no longer can tell when I am working and when I am playing online."
~ KEVIN KELLY
Fact of the day
In a paper appearing in the August 9, 2012 issue of Nature, MIT neuroscientists report that two major classes of brain cells repress neural activity in specific mathematical ways: One type subtracts from overall activation, while the other divides it.