Fig. 2.

Relative MSE between base TRFs and estimated TRFs based on raw Vs CCA-filtered Vs SI-GEVD filtered EEG. Each boxplot is built from the statistics of per trial relative MSEs (38 datapoints per method). Comparison between the methods were done using Wilcoxon’s signed-rank test with Bonferroni correction: ‘****’ for $p<0.0001$. Note that the Y-axis is in log scale.