Statistics
To evaluate EEG power differences across different timepoints (i.e., Pre, Post, and FUP), a Wilcoxon signed-rank test was used. The nonparametric test was required since the EEG data did not meet the parametric assumptions (i.e., not normally distributed), and participants were compared with themselves across timepoints (i.e., paired samples). For statistical testing of the Spearman correlation coefficients, 2-tailed 