Fig. 8

Comparison of decoding stability on UWTN or PWTN change. Top row indicates AD variation against UWTN changes and the bottom row shows that against PWTN changes. The first column depicts the AD variation of each decoder as PWTN (top) or UWTN (bottom) increased. Colored circles denote the mean AD variation of each decoder (red: KF, black: OLE, and white: PVA). The second column shows the mean AD variations for each PWTN (top) or UTWN (bottom) conditions. N.S. denotes that differences were not significant between conditions by the post hoc analysis. On the contrary, the rest unmarked bars denote significant difference (two-way ANOVA, multiple comparison tests with Bonferroni correction, p < 0.01). The third column shows the mean AD variations for each decoder (two-way ANOVA, multiple comparison tests with Bonferroni correction, p < 0.01). Error bars show the standard deviation over angle shifts (see Fig. 3)