The ability to record brain activity while seeing an image, and then play it back to reconstruct the image has been a matter of pure science fiction-until now. Scientists working at the University of California, Berkeley, have succeeded in reconstructing visual images after recording the brain activity of human subjects watching movie trailers-they were able to see what the people's brains were seeing!
They used a functional Magnetic Resonance Imaging (fMRl) scanner to record the flow of blood in certain parts of the brain. Using powerful computing techniques, it was possible to correlate the visual images with the corresponding brain activities. This allowed the images to be reconstructed. The researchers hope to eventually "read the thoughts" of patients in a coma or suffering from paralysis after a stroke. Researchers have now also succeeded in reconstructing words spoken to persons by detecting the corresponding brain activity.
nice
ReplyDelete