Can severe Acquired Brain Injury users control a communication application operated through a P300-based brain computer interface?

In this study a P300 based prototype for communication and control was evaluated by three Acquired Brain Injury (ABI) users. The prototype was developed by merging an already existing assistive technology commercial solution (Qualiworld) with a BCI system and it allows the user to access to text entry and internet applications. The three ABI users were challenged with four complex tasks and the results revealed good performance levels in standard communication and internet tasks (mean=73.79%, SD=9.4). Two end-users completed the four tasks and reached a performance of respectively 69% and 76% on average. One of the end-users did not finish one of the tasks (internet task) and the mean of accuracy for the three completed tasks was 73%.