Openness is Hard-Wired in the Brain

Altruism, which lies at the heart of true openness, is hard-wired, it seems:

The results were showing that when the volunteers placed the interests of others before their own, the generosity activated a primitive part of the brain that usually lights up in response to food or sex. Altruism, the experiment suggested, was not a superior moral faculty that suppresses basic selfish urges but rather was basic to the brain, hard-wired and pleasurable.

Now there's a surprise. Not.