New research shows facial expressions are planned by the brain before movement, not automatic emotional reactions.

In the past decade, scientists have made the facial transplants a reality. Now, surgeons can give someone an entirely new, functioning face grafted from a deceased donor. But after these initial ...

Expressions of fear, anger and trust can also shed light on the origins of the subtle signals sent out by a face. Angry and fearful expressions tap into the machinery we use to work out how mature a ...