How our brains build social worlds …

"This raises the interesting question of how our brains deal with deception. Somehow, a balance has to be struck: it would be too costly to question the motive behind every interaction, but taking everything at face value makes us vulnerable. Neuroscientists have become very interested in the differences in brain activity between interacting with a person considered trustworthy and one perceived as dangerous and deceptive."

"One key difference may be a shift in the balance between unconscious mirroring of another person's actions and expressions and conscious attempts to grasp the other's motives. This may lead to a decoupling from the other, a kind of separation within the interaction, as activity diminishes in areas that mirror experiences, while higher-order, cognitive frontal functions kick in."

via How our brains build social worlds - opinion - 02 December 2009 - New Scientist.