(CNN) – Leonardo DiCaprio and Ellen Page star in Christopher Nolan's summer blockbuster, "Inception." The movie deals with stealing and planting thoughts inside someone's mind while they dream, a sort of nocturnal espionage. Is it real or science fiction? Deirdre Barrett is a clinical psychologist with Harvard Medical School and a leader in the field of dream research. She joined us on Tuesday's American Morning to discuss the possibilities of dream manipulation. Watch
Hey, how about a reference to the dream researchers? International Association for the Study of Dreams http://asdreams.org