We have 1,000 types of nerve cells

This Scientific American story shows why we have only just emerged from the Stone Age into the Bronze Age on neuroscience:

(And), as our understanding of the brain grows, our desire to intervene, to help ameliorate the many pathologies to which the mind is prey, grows commensurately. Yet today’s tools (drugs and deep-brain stimulations) are comparatively crude, with undesirable side effects.

Christof Koch is a disciple of DNA co-discoverer Francis Crick and a leading neuroscientist. He's on the forefront of new research in the field; read the full story to see some of the latest avenues of research.