Actors show different brain activity when in character, study finds

Method actors were trained to take on role of Romeo or Juliet and then respond to questions

"Acting is the least mysterious of all crafts," Marlon Brando once said. But for scientists, working out what is going on in an actor's head has always been something of a puzzle.

Now, researchers have said thespians show different patterns of brain activity depending on whether they are in character or not.