Code-VEP vs. Eye Tracking: A Comparison Study

• DOI: 10.3390/brainsci8070130
• Publication Date: 2018-07-09T15:18:53Z
• Authors: Hooman Nezamfar; Seyed Sadegh Mohs...; Matt Higger; Deniz Erdogmus
• Keywords: Modalities; Robustness

Even with state-of-the-art techniques there are individuals whose paralysis prevents them from communicating others. Brain⁻Computer-Interfaces (BCI) aim to utilize brain waves construct a voice for those needs remain unmet. In this paper we compare the efficacy of BCI input signal, code-VEP via Electroencephalography, against eye gaze tracking, among most popular modalities used. These results, on healthy without paralysis, suggest that while tracking works well some, it does not work or at all others; latter group includes corrected vision who squint their eyes unintentionally focusing task. It is also evident performance interface more sensitive head/body movements when used as modality, compared using c-VEP. Sensitivity movement could be better in systems which head mounted face and designed specifically assistive devices. The sample developed assessment has same reaction time driven c-VEP tracking; approximately 0.5⁻1 second needed make selection four options simultaneously presented. Factors, such system robustness play crucial role participant preferences.