Fig. 1.

Task partial-least squares (PLS) examining group (antidepressant treatment responders, non-responders, controls) and condition (eyes-open [EO]/eyes-closed [EC]) effects in multiscale entropy (MSE) (A) and spectral power density (SPD) at baseline (B). Bar graphs depict the contrast between EO/EC conditions across groups that was significantly expressed across the entire dataset as determined by permutation tests. The statistical image plots (figures below) represent bootstrap ratio maps. Each row represents electrodes and timescales/frequencies at which the contrast displayed in the bar graphs was most stable as determined by bootstrapping. Values represent the ratio of the parameter estimate for the electrode source divided by the bootstrap-derived standard error (roughly z-scores). Positive values indicate timescales and electrode sources showing higher MSE/SPD during the EC condition, while negative values depict timescales and electrode sources showing higher MSE/SPD during the EO condition.