Steady state visual evoked potential (SSVEP) based brain-computer interface (BCI) performance under different perturbations.

ABSTRACT: Brain-computer interface (BCI) paradigms are usually tested when environmental and biological artifacts are intentionally avoided. In this study, we deliberately introduced different perturbations in order to test the robustness of a steady state visual evoked potential (SSVEP) based BCI. Specifically we investigated to what extent a drop in performance is related to the degraded quality of EEG signals or rather due to increased cognitive load. In the online tasks, subjects focused on one of the four circles and gave feedback on the correctness of the classification under four conditions randomized across subjects: Control (no perturbation), Speaking (counting loudly and repeatedly from one to ten), Thinking (mentally counting repeatedly from one to ten), and Listening (listening to verbal

SUBMITTER: Iscan Z 

PROVIDER: S-EPMC5779700 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature