Figure 1.
The paraventricular nucleus of the thalamus (Pa) in nonhuman primates. The Pa is a small group of densely-packed neurons in the dorsal midline thalamus. Shown here are three adjacent coronal sections through the dorsal midline thalamus of the Macaca fascicularis stained for (A) Nissl, (B) AChE, and (C) myelin. The Pa is densely stained with AChE but is relatively lightly stained for myelin. Other thalamic nuclei shown are the anterodorsal (AD), anteromedial (AM), anteroventral (AV), and parataenial (Pt) nuclei. The stria medullaris (sm) is also shown. Scale bar = 500 µm. Adapted from Hsu and Price (2007)