Dropped on his head

As a baby....repeatedly.

THURSDAY, Oct. 5 (HealthDay News) -- Civil society may hinge on a tiny piece of tissue at the front of the human brain, a new study suggests.

Experiments involving a "fairness" game show that the right side of this region -- called the dorsolateral prefrontal cortex -- helps people suppress selfish urges in obviously unjust situations, even at their own expense.

When researchers used a mild electric current to temporarily short-circuit this area, the law of the jungle quickly reasserted itself.

People with disabled right-side dorsolateral prefrontal cortexes grabbed whatever money they could from lopsided transactions -- even when they knew the deal they were getting was grossly unfair.

I don't get it?