Figure 3. ( a ) Average fluctuations of total cBRS between genders over the time course of the sham measurement day. ( b ) Figure 3. ( a ) Average fluctuations of total cBRS between genders over the time course of the sham measurement day. Average fluctuation of total cBRS between genders over the time course of the active measurement day. Depicted are ( b ) Average fluctuation of total cBRS between genders over the time course of the active measurement day. Depicted are means ± SD for each condition and task. NS: nerve stimulation. RB: rhythmic breathing. means ± SD for each condition and task. NS: nerve stimulation. RB: rhythmic Table 4. Estimated linear mixed model coefficients (Coeff.) with their respective 95% confidence interval (CI-95) repre- senting the effect of change between baseline and tVNS, as well as tVNS and post-stimulation during electrical nerve stimulation. Additionally, each difference (Diff.) in coefficients (active minus sham) is shown including the respective CI- 95; s.u. = baseline standardized unit.