Figure 4.
Relationship between band power and BMIS and ZEF items. Standardized fixed effects of (a) BMIS and (b) ZEF item scores on Fz (first column), Cz (second column), Pz (third column), O1 (fourth column), and O2 (fifth column) band power values. The y-axis of each subplot contains questionnaire items, while the x-axis refers to the power in different frequency bands (i.e., Delta (D), Theta (T), Alpha (A), and Beta (B)). The sign of the effect represents the directionality of the association. A yellow color gradient indicates a positive relationship, while a blue color gradient indicates a negative relationship. Red dots denote statistically significant associations (p < 0.05). Note that each ZEF dimension contains three items as described in the Supplementary Material (e.g., general fatigue contains three questions that have been merged to one dimension in this figure and the same applies for visual, social, motivational, and emotional fatigue).