This research aimed to develop a system that would allow physically disabled people to control a cursor through brain-computer interface (BCI), enabling them to perform tasks on a computer. Such a system could provide more independence and improve communication skills for disabled people, thus providing a better quality of life (Kübler 2001). The present paper analyzed the EMOTIV Epoc BCI device (Emotiv 2012), developed statistic solutions on brain activity patterns identified by the device, developed an application to allow the cursor’s control through the device, and performed tests with 20 people with and without physical disabilities. The tests required participants to click objects on the screen and type sentences on a virtual keyboard, which enabled researchers to evaluate quantitatively and qualitatively their use of the computer. The results showed that 90% of people, including 4 of 5 disabled subjects, were able to perform tasks on the computer satisfactorily. The developed solution also improved the cursor’s control by 65%. The system allowed the usage of the computer satisfactorily, providing accessibility to computers for physically disabled people.
|Keywords:||Brain Computer Interface, Cursor Control, Assistive Technology, Restricted Mobility, Usability, Accessibility|
Student, Pontifícia Universidade Católica de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
Professor, Computer Science Department, Pontifical University of Minas Gerais - PUC Minas, Belo Horizonte, MG, Brazil