Table 1. Baseline values, definitions and descriptions of non-dimensional groups and time constants, taken from [7] and [6].

	Definition (where applicable)	Physical meaning	Baseline value
α1	$\frac{{\overline{V}}_a/\overline{q}}{{\overline{R}}_{sa}{\overline{C}}_a}$	Arterial transit time/Arterial outflow time constant	0.98
α2	$G\left(\frac{P_a-P_{ic}}{P_a-P_v}-{\beta }_1\right)$	Non-dimensional feedback gain for CBF	8.18
τ		CBF feedback time constant	20 s
τα	$\left(R_{la}+0.5{\overline{R}}_{sa}\right){\overline{C}}_z$	Arterial inflow time constant	0.60 s
β1	$\left(R_{la}+0.5{\overline{R}}_{sa}\right)/{\overline{R}}_{total}$	Fractional resistance	0.40
αv	$\frac{{\overline{V}}_v/\overline{q}}{R_{lv}{\overline{C}}_v}$	Venous transit time/Venous outflow time constant	5.23
τv	$R_{lv}{\overline{C}}_v$	Venous outflow time constant	0.55 s
β	${\overline{R}}_{sa}/R_{total}$	Arteriole resistance/Total resistance	0.69
Eo		Baseline Oxygen Extraction Fraction	0.4