![]() The electrical arrays, while less intrusive than probes used for other brain-interface experiments, still needed to be implanted in subjects who were about to undergo epilepsy surgery. The experiment produced positive results, but showed the current limitations of the tech. "Here we show the value of decoding both sides of a conversation - both the questions someone hears and what they say in response," lead author Prof. As a result, it produced results that were 61 to 76 percent accurate, compared to 7 to 20 percent expected by guessing. If it first figured out which question was being asked, it could winnow down the possible set of responses. You can disable notifications at any time in your settings menu. Subjects responded out loud to multiple choice questions, like "From zero to 10, how comfortable are you?" or "How is your room currently?" Using brain electrical activity only, the system would then guess when a question was being asked and what it was, and from that, determine the subject's answer. They were placed in regions of the brain associated with both speech and comprehension. Researchers implanted electrical arrays on the surfaces of the brains of volunteer epilepsy patients. The UCSF researchers, however, tried to use context to help the machines translate entire words and phrases. While impressive, it shows that the technology still has a long ways to go.īrain-computer interface systems already exist, but require users to mentally select a letter at a time on a virtual keyboard, a process that tends to be very slow. Now, neuroscientists from the University of California, San Francisco (backed by Facebook's Reality Labs) have demonstrated a system that can translate speech into text in real time using brain activity only. Facebook also has ambitious plans to interface with computers using wearables and one day let us type rapidly with our brains. Elon Musk isn't the only one who wants us to communicate via brainwaves. ![]()
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