3D Green Virtual Face P300 Spelling Paradigm Based on Mixed Reality
S. Wang, Yan Wu, Qi Li · 2024
For this experiment we designed a 3DGCF speller based on the MR environment. This paradigm replaces the color blinking with a 3D green virtual face. Analysis of ERP waveforms and P300 speller performance for 10 subjects in the 3DGVF and the 3DG speller paradigm using color blinking. More ERP components (N170, P300, N400), as well as a larger ERP amplitude, were observed on the 3DGVF spelling paradigm, and the average accuracy as well as information transfer rate of 10 subjects was higher in 3DGVF than in 3DG.