Neuroscience: understanding what makes us who we are
http://connectomethebook.com/?page_id=1233 (TED talk)
"Sebastian Seung, a dynamic professor at MIT, is on a quest to discover the biological basis of identity. He believes it lies in the pattern of connections between the brain's neurons, which change slowly over time as we learn and grow. The connectome, as it's called, is where our genetic inheritance intersects with our life experience. It's where nature meets nurture."
(Thanks CW for the link)