Psychic Computers? Not Quite...

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Psychic Computers? Not Quite...

Post  John Drake on Mon Nov 02, 2009 9:33 pm

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Written by Jeff Wagg
Monday, 02 November 2009 00:00
The media is abuzz about an apparent discovery by two doctors, Jack Gallant and Sinji Nishimoto, who have invented a "psychic computer." The computer can read a person's thoughts, and display them on a screen as a video. Sounds far-fetched? Well, it is, and it's too early to tell what exactly these two have invented.

As the Times UK reports, the study has not been peer reviewed, so we can't be sure what they're doing, but it appears that using an fMRI, a machine that can read brain activity, and a computer with a custom algorithm, they can reproduce people's thoughts on a screen.

If I understand it correctly, it works like this: when you think of a color or a shape, certain areas in the brain activate. The fMRI can read these activations, and through the algorithm, reproduce the conditions necessary for that to happen. A green square would produce a distinct pattern, the fMRI would pick it up, report it to the computer, who then decodes the pattern back into a green square. This all happens real time, so the image appears as a video.


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