Fig. 2.

Three rows show geodesic shooting of the initial momentum using the first three principal components, ± $a{\psi }_0^{(k)}$, k = 1, 2, 3, a > 0, respectively. The left and right columns in each row represent hippocampal shapes synthesized at −20 ${\psi }_0^{(k)}$ and 20 ${\psi }_0^{(k)}$, respectively. Regions with outward and inward deformations are, respectively, colored in red and blue.