Thought-controlled wheelchairs and nerve-controlled prosthetic arms are some of the latest innovations in bionics being discussed at a science conference in Washington.
The wheelchair can be directed by brain signals detected using a cap fitted to the user and is the work of scientists at the Ecole Polytechnique Federale de Lausanne in Switzerland (EPFL).
It is part of efforts to control machines directly via brain signals, which could lead to new devices for the paralysed and disabled.
