Figure 12.
Pattern of pretectal connections with ZI in the monkey. Chartings show the distribution of labeled cells (dots), axons (lines) and terminals (stipple) in ZI (D–I) following an injection of WGA-HRP confined to the pretectum (A–C) in a macaque monkey. The injection site involved the anterior and posterior pretectal nuclei, nucleus of the posterior commissure and nucleus of the optic tract. Note the large numbers of cells and terminals in the dorsal half of ZI. These extended dorsolaterally, in islands of neuropil.