/The univariate sensitivity analysis for each parameter of the Patz model is shown in Figure 2. The three plots highlight the signal variations observed when independently varying each model parameter SVR, d, and τc. The colour scale corresponds to the values of the parameter being varied. For all parameters, an increase in model output signal amplitude and signal range is observed when moving to longer TRs. A larger model output signal range for SVR than for d or τc is apparent at all TRs, suggesting higher signal sensitivity to this model parameter.