A computer can predict what you’re dreaming about based on brain wave activity, new research suggests.By measuring people’s brain activity during waking moments, researchers were able to pick out the signatures of specific dream imagery — such as keys or a bed — while the dreamer was asleep.
Dream readingSo why not try to read dreams? Tamaki and her colleagues tracked brain activity using functional magnetic resonance imaging (fMRI) of three people as they were sleeping; the researchers woke up the trio every few minutes to have them describe their dreams. In total, the scientists collected about 200 visual images.The researchers then tied the dream content that participants described in their waking moments to specific patterns in brain activity (as seen in the blood flow in fMRI scans) and had a computer model learn those signatures.The computer model then analyzed each person’s dreams. The model was able to pick out the time when each person dreamed of specific objects based on their brain activity when they were awake.Those findings showed the same brain regions are activated when people are awake as when they are actually having the associated dream.”We were amazed,” Tamaki said. Even though the team just tried to read dream imagery from one person’s waking brain activity, they found some common patterns for broad classes of imagery, such as scenery versus people, Tamaki told LiveScience. “There is a similarity amongst the subjects, so from that result, we could pick up some basic dream content and then we can build a model from those base contents, and they may apply to other people,” Tamaki said
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