FIGURE 4.
Effect of sleep deprivation on anxiety levels. (A) The significant effect of TSD on State Anxiety was prominent in both females and males, and consequently in the entire study population (B). Accordingly, there was no significant sleep ∗ sex interaction. Solid line brackets are related to paired t-tests. Dashed line brackets relate to the sex ∗ sleep interaction (RM-ANOVA). ∗∗p < 0.01; ∗p < 0.05; data are given as mean ± SEM.