Key points from article :
Mind-reading brain implant works in two stages.
1. Implanted electrode picks up brain signals that manoeuvre the mouth and voice box.
2. Computer simulate how the movements would form different sounds.
This results in synthesised speech coming out of a "virtual vocal tract".
Alternative approach of looking for signals for each word have only had limited success.
Could help people when disease robs them of their ability to talk.
At very early stages and is not close to clinical applications yet.
University of California, San Francisco research published in the journal Nature.
