Seeking
How the brain hard-wires us to love Google, Twitter, and texting.

http://www.slate.com/id/2224932/pagenum/all/

I like this article. The distinction between the chemical pathways for "wanting" and "liking" is intriguing. I wonder what would happen if you gave the rats control of an electrode for their own "liking" centers?

The doughnut-shaped machine swallows the nun, who is outfitted in a plain T-shirt and loose hospital pants rather than her usual brown habit and long veil. She wears earplugs and rests her head on foam cushions to dampen the device’s roar, as loud as a jet engine. Supercooled giant magnets generate intense fields around the nun’s head in a high- ( Read more... )

"Spindle neurons - the specialised brain cells thought to process our emotions and that may even enable us to love and suffer - have been found in whales."

http://environment.newscientist.com/article/mg19225804.000