Effects of Gaze Fixation on the Performance of a Motor Imagery-Based Brain-Computer Interface.

ABSTRACT: Motor imagery-based brain-computer interfaces (BCIs) have been studied without controlling subjects' gaze fixation position previously. The effect of gaze fixation and covert attention on the behavioral performance of BCI is still unknown. This study designed a gaze fixation controlled experiment. Subjects were required to conduct a secondary task of gaze fixation when performing the primary task of motor imagination. Subjects' performance was analyzed according to the relationship between motor imagery target and the gaze fixation position, resulting in three BCI control conditions, i.e., congruent, incongruent, and center cross trials. A group of fourteen subjects was recruited. The average group performances of three different conditions did not show statistically significant difference

SUBMITTER: Meng J 

PROVIDER: S-EPMC8818858 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature