New neurons are constantly produced from neural stem and progenitor cells in the Grownup mammalian Mind (Encinas and Enikolopov, 2008; Zhao et al., 2008). Neurogenesis during the Grownup Mind is restricted to two areas: the subventricular zone (SVZ) with the lateral ventricles plus the subgranular zone (SGZ) on the hippocampal dentate gyrus. During