Human evolution: the brain (Introduction)

by David Turell , Thursday, October 20, 2011, 05:24 (4566 days ago) @ David Turell

Several genes have been identified that apppeared and drove the development of the prefrontal lobe as hominids broke off from the chimp line (human prefrontal lobe became six times that of the chimp). Why these genes appeared is not determined, just that they appeared at the right time:

http://the-scientist.com/2011/10/19/new-genes-new-brain/