Table 2. Parameters of the biophysical THB model.

(A) Results of fitting the theoretical expression for $R_{1W}$, Eq. (27), to the data in Table 1. Numbers represent fitting parameters ± fitting errors. (B) Detail biophysical parameters of THB model. Data represent estimates of parameters $n_{TR},\lambda ,d_H$ using data for the fast T1 component [65] (not available for Globus Pallidum), the theoretical equations for $R_{1H}$ and $R_{1W}$, Eq. (14), and the expression for $\lambda$. Eq. (24). In both cases, A and B, the uniform orientation distribution of vectors $\mathbf{r}$, Eq. (34), is used.

A	WM	cGM	Caudate	Thalamus	Putamen	Glob. Pall.
$n_{TR}\cdot \lambda$ (s−1)	4.43 ± 0.37	3.19 ± 1.26	2.82 ± 0.31	2.90 ± 0.26	2.99 ± 0.29	3.45 ± 0.32
$\tau$ (ns)	2.51 ± 0.19	4.96 ± 3.52	3.49 ± 0.49	2.75 ± 0.26	3.06 ± 0.35	2.47 ± 0.18
b	0.56 ± 0.08	0.42 ± 0.18	0.57 ± 0.09	0.58 ± 0.08	0.56 ± 0.08	0.68 ± 0.13
$r_{1W}$ (s−1)	0.23 ± 0.11	0.08 ± 0.22	0.27 ± 0.07	0.27 ± 0.07	0.24 ± 0.07	0.37 ± 0.10
B
$n_{TR}$	0.07	0.04	0.03	0.04	0.04
$\lambda /\tau$ (1/s/ns)	25.74	15.96	29.35	29.46	27.56
$d_H$ (Å)	1.58	1.71	1.55	1.55	1.56