By Remy Melina, Life's Little Mysteries Staff Writer
In the movie "Inception," the characters enter and manipulate other people's dreams. Today's real scientists can't do that, but by using brain imaging technology, they are getting closer to being able to tell whether a person is doing math calculations, talking, reading, or is frightened in their dreams.
"This imaging technology will continue to get more precise, but I doubt it will ever be as exact as to content as, say, the depiction in 'Inception,'" said Deirdre Barrett, a psychologist at Harvard University.
But scientists are able to see what parts of the brain are activated during various sleep cycles by using electroencephalography (EEG), electrocardiography (EKG) and rapid eye movement technology (REMT) to record and analyze a sleeping person's brain waves, and in some cases, they can interpret what someone is dreaming about.
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