Piotr Stawicki|Felix Gembler|Aya Rezeika|Ivan Volosyak
A Novel Hybrid Mental Spelling Application Based on Eye Tracking and SSVEP-Based BCI
Rhine-Waal University of Applied Sciences|Rhine-Waal University of Applied Sciences|Rhine-Waal University of Applied Sciences|Rhine-Waal University of Applied Sciences
steady state visual evoked potentials ssvepsbased braincomputer interfaces bcis well eyetracking devices provide pathway reestablishing communication people severe disabilities fused control techniques novel eyetrackingssvep hybrid system utilizes eye tracking initial rough selection ssvep technology fine target activation based previous studies four stimuli used ssvep aspect granting sufficient control bci users eye tracking data used activation letters false positives due inappropriate dwell times avoided novel approach combines high speed eye tracking systems high classification accuracies low target ssvepbased bcis leading optimal combination methods evaluated accuracy speed proposed hybrid system 30target spelling application implementing three control approaches pure eye tracking ssvep hybrid system 32 participants although highest information transfer rates itrs achieved pure eye tracking considerable amount subjects able gain sufficient control standalone eyetracking device pure ssvep system 7813 75 participants reached reliable control respectively respect proposed hybrid universal 90 users achieved reliable control outperformed pure ssvep system terms speed user friendliness presented hybrid system might offer communication wider range users comparison standard techniques