Figure 11.

Morphology of incertotectal neurons in a macaque monkey following a large injection of WGA-HRP into the SC. The injection shown in C spreads slightly into the periaqueductal gray. B. Labeled cells were arrayed throughout vZI, but not dZI. A. The cells were multipolar with somata and dendrites that were typically oriented horizontally in the main body of the nucleus (cells B–H). This orientation was less evident at the medial end of the layer (cell A). Within dlZI, the primary orientation of the dendrites was dorsolateral (cells I–J).