Figure 2.
Light microscopic images of DARPP-32 and I-1 labeling in layer III of the macaque PFC. A–C: DARPP-32 labeled pyramidal cell bodies (A, black arrows), as well as small multipolar cells (B, black arrows) in the grey matter. Glia were immunoreactive in the subcortical white matter as well (C, white arrows). D: I-1 label stained the nucleus of neurons (black arrows) and the PFC neuropil (black arrowheads). Scale bar is 20 µm.