Please turn on JavaScript. Media requires JavaScript to play.

Scientists believe the first step has been taken towards hearing imagined speech using a form of electronic telepathy.

They hope that, in the future, it may be possible to "decode" the thoughts of brain-damaged patients who cannot speak.

Bob Knight, professor of psychology and neuroscience at the University of California, explains how it works.

Get in touch with Today via email , Twitter or Facebook or text us on 84844.