Fig. 3.

Localization of mRNA for gene correlates of learning and hippocampal neurogenesis. Radiographs of mRNA from the left cerebral hemisphere (Upper) and corresponding hippocampus (Lower) are presented for five genes identified by microarray. Abbreviations: DG, dentate gyrus; H, hilus; CA1, hippocampal CA1 field; CA2/3, hippocampal CA2 and CA3 fields; ARL6IP5, ADP ribosylation-like factor 6 interacting protein 5; IGF1, insulin-like growth factor 1; PRG-3, plasticity-related gene 3; PHLPP, PH domain and leucine-rich repeat protein phosphatase; GRM7, metabotropic glutamate receptor 7.