Victor Tangermann
Mind Reader

Scientists Debut System to Translate Thoughts Directly Into Text

byJon Christian
3. 31. 20
Victor Tangermann

It could effectively allow you to think text directly into a computer.

Brain Reader

Researchers say they’ve built a system that can translate brain signals directly into text — a promising step toward a “speech prosthesis” that could effectively allow you to think text directly into a computer.

“We are not there yet,” University of California researcher Joseph Makin told The Guardian, “but we think this could be the basis of a speech prosthesis.”

AI Power

Makin and his collaborators described the new system in a paper published in the journal Nature Neuroscience.

Basically, they recruited four epilepsy patients who had already had electrode arrays implanted into their brains for monitoring purposes. They asked the participants to repeatedly read sentences aloud, while collecting neural information — a dataset they then used to train an algorithm to interpret the signals even when the subjects weren’t reading out loud.


Locked In

The system still has weaknesses — most notably that it works best on sentences it’s already been trained on. But its accuracy is impressive, The Guardian reports, with an error rate of only about three percent, which is slightly lower than that of human transcribers.

According to the newspaper, the researchers behind the system hope it could be used as the basis for a communication device for people who are unable to type or speak due to locked in syndrome or similar conditions.

READ MORE: Scientists develop AI that can turn brain activity into text [The Guardian]

More on brain-computer interfaces: Facebook Just Bought a Brain-Computer Interface Startup


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