Figure 1.   Schematic diagram of a typical infusion site of antisense TrkA oligonucleotide into CA1 of the dorsal hippocampus. The extent was deduced from reduced immunohistochemical staining for ChAT and VAChT. The template is from Paxinos and Watson (1997). CA1, CA2, CA3, Ammon's horn, regions 1-3; DG, dentate gyrus.