"Theories are like toothbrushes," it's sometimes said. "Everybody has their own and nobody wants to use anybody else's." It's a joke, but when it comes to the study of consciousness—the question of ...

"Fast asleep? It is no matter; Enjoy the honey-heavy dew of slumber: Thou hast no figures nor no fantasies, Which busy care draws in the brains of men; Therefore thou sleep'st so sound." —William ...

Have you ever wondered what makes you "you"? What creates the feeling of being aware, of experiencing the world around you? Scientists call this consciousness, and it's one of the biggest mysteries we ...

How consciousness arises in the brain is no clearer after two big theories go head-to-head, but the competition's design could push the field forward. “Theories are like toothbrushes,” it’s sometimes ...