The technique used temporary electrodes placed in the brain to monitor people before surgery, but the aim is to make a permanent implant.
So far the approach has only been able to decode simple words that people were listening to. But the researchers hope that with further development it will understand speech that people are thinking but not voicing.
If successful it could help people who can’t speak because they are paralysed after a stroke, for instance, or have motor neuron disease.
Read More.. Source New Scientist