In the cerebrum, the primordial hippocampus developed better than the primordial piriform.The former belongs to archipallium and the latter is paleopallium.
Results Compared with control group,the changes of neuronic ultrastructure in hippocampus CA1 in high preference group and low preference group were more severes.
The appearance diffusion coefficient and the fractional anisotropy were measured for the splenium of the corpus callosum, the genu of the corpus callosum, and the hippocampus.