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U.S. researchers fail

a computer to read the mind

The words spoken aloud and in the thought control the cursor on the screen .

07/04/2011 VARIOUS MEDIA

Researchers at the University of Washington in U.S. have first used a technique usually associated with the detection of epilepsy, to show that a computer can listen to human thoughts.

In the study, published in the Journal of Neural Engineering, the scientists show that humans can control a cursor on a computer screen using words spoken aloud and in his mind, which promises important applications for patients who may have lost the ability to talk by brain injury or those with disabilities and limited movement.

The researchers connected the patient's brain directly to a computer and showed that it could be controlled with an accuracy of up to 90% even without prior training.

The study involves a technique called electrocortiografía (ECoG), placing electrodes directly on the patient's brain to record electrical activity, which was used to identify regions of the brain that cause epilepsy. "We want to see if we can not only detect when you are saying 'dog' or some other word, but also learn what they look like in mind the sheer idea of \u200b\u200bit," says director the study.