Secretive experiments conducted in the 1960s used electrodes to mind control animals for nefarious purposes.
For two decades, the CIA conducted secretive experiments into mind control and psychological manipulation.
The research represents the first step toward a working mind control device - but there's still a long way to go.
A file recently released by the US government contains information about 'psycho-electric weapons'.
Researchers at the University of Washington have built a working human-to-human mind control system.