Designing a dual page virtual keyboard for mental speller

Exploiting the novel human-machine interaction paradigm which is called brain-machine interface, we are dedicated to constructing a so called imitating-natural-reading visual evoked potential based mental speller for those with neuromuscular disorders and motor disabilities. These techniques also have potential applications in occasions such as navigating, diving and battlefield, etc. Users input a character to computer by gazing at the respective key of virtual keyboard on the screen. In order to realize the goal, we designed a virtual keyboard with double pages based on the past work. Analyzing the speed of communication of this paradigm reflect that it can boost up the bit rate significantly.