Figure 4.

Susceptibility in selected iron‐rich nuclei. PU: putamen; GP: globus pallidus. CN: caudate nucleus; SN; substantia nigra; RN: red nucleus; DN: dentate nucleus. Susceptibility values of these nuclei were fitted with the exponential model [Eq. (4)]. The fitted equations are listed in Table 2, and the fitted curves are plotted as solid lines (including both male and female). The dashed and dotted lines represent the functional and observation bounds of 95% confidence. Open circles: male, closed circles: female. It is noted that the susceptibility is displayed in a reversed scale so that brighter intensity corresponds to more diamagnetic susceptibility. [Color figure can be viewed in the online issue, which is available at http://wileyonlinelibrary.com.]