I just heard about a very interesting new discovery in neuroscience:. The basic gist is that it appears that axons process information. Until now it has been thought that only the cell body of neurons was the part that processed information. Our present understanding of the brain, and also of psychopharmacology, is based completely on the dendrites and main body of the neuron. If it turns out that axons -- the "wires" that connect neurons -- are actually major contributors to how the brain computes, then it may point to both a new understanding of cognition, as well as a new frontier in treating mental and neurological disorders. (Thanks to Bram for letting me know).