Fig. 1.

The visualization of group-wise volume differences between stable subjective cognitive decline (SCD) and progressive SCD groups. The map visualizes the relative volume difference: $\frac{V_p-V_s}{0.5\times \left(V_p+V_s\right)}$, where V_p and V_s are the mean volumes for progressive and stable groups, respectively. Blue indicates the structures on MRI that were larger in the progressive group, and red indicates the structures that were smaller.