Table 3 Architectonic characteristics of medial PfC
From: Cyto-, myelo- and chemoarchitecture of the prefrontal cortex of the Cebus monkey
| Â | Nissl | WFA | SMI-32 | Myelin |
|---|---|---|---|---|
32c | Agranular. IG predominates over SG compartment. Medium-sized cells in Va and smaller in III. Layer V blends with VI. | Narrow but very intense band in layer VI, reaching layer V, with patches of strongly labeled PNs. | Weak immunoreactivity. Band in IG layers with sparse neuropil and very few somas and dendrites. | Lightly myelinated. No obvious horizontal bands. |
32r | A thin and cell-sparse layer IV can be visualized. | Similar to 32c, but the labeled band over IG layers is wider, with some pale nets reaching layer III. | Immunoreactivity somewhat more intense than 32c, with some pyramidal neurons in layer IIIc. | Moderate myelination. Discernible oBb and iBb. Thin and short vertical fibers in IG layers. |
25 | Layer IV scarcely discernible. SG layers somewhat more developed than in 32c. Clear limits between II and III. Small-sized cells sparsely packed with no clear lamination in III. Layer V almost blends with layer VI. | Poorly stained. Clear-cut limits with the adjacent dorsal 32c and ventral 14c. Narrow band over layer VI reaching layer V, with a few nets and dense neuropil near white matter. | Similar to 32c, but still lighter. | Poorly myelinated, but somewhat more stained than 32c. |