Universal mono-command support system for users with severe tetraplegia and anarthria

The paper describes two input devices and a software interface that allow severely impaired people to easily interact with a personal computer. The first input device does not require residual movement but makes use of skin electrical signals and applies Artificial Neural Networks to decode the mind-driven commands. The second input device is an evolution of a proximity sensor that can be activated using minimal residual movements, therefore it is suitable for the main part of motor disabilities. The software interface can be adapted to any kind of input device and makes it possible to access any standard software installed on a PC.