This article detailing an advancement in reading people's minds is interesting.
'We want to develop an implantable device that decodes the signals that occur in the brain when we think about a word, then turn these signals into a sound file that can be reproduced by a speech device.'
Such a novel device would communicate people's intended thoughts via an electronic speaker or writing device, but the team still has a lot more research to conduct.
They have been able to reproduce a word a person has just heard on a machine, by monitoring temporal lobe activity in a neurosurgical setting.
Using electrodes placed on the surface of the language areas of the brain of awake patients, they monitored the pattern of electrical responses of brain cells during perceived speech.The scientists then created a computer model that could match spoken sounds to these signals.'We recorded electrical signals directly from the human language areas when a person heard words,' Knight explained.'We then decoded these electrical signals and were able to turn them into sound files that reflected what the person heard, with remarkable accuracy.'