Figure 7.

(a)-(b) Example MR images of the normal (mature, “closed”, more folded) and farthest-from-normal (immature, “open”, less folded) operculums, respectively, overlapped with the extracted cortical surfaces. (c)-(d) Average cortical folding descriptors P_{average normal}(C, S) and P_{average abnormal}(C, S) for 2 closest-to-normal and 4 significantly-abnormal operculums, respectively, chosen by a medical expert based on a subjective clinical scoring protocol [Licht et al. (2009)]. (e) P_{average normal}(C, S) − P_{average abnormal}(C, S); blue ≡ negative and red ≡ positive values.