Figure 12:

Photomicrographs of CR immunostaining in the caudal portion of the frontal lobe of the lar gibbon, showing the distribution of WMICs immunoreactive to CR. (a) Moderately magnified image of the primary motor cortex (from the region indicated by the b in Fig. 2a), showing the numerous CR-immunoreactive WMICs within the infracortical white matter (WM). (b) High magnification image of the cortical/white matter boundary (marked by a dashed line) of the primary motor cortex, showing the CR-immunoreactive WMICs deep to the cerebral cortex. Arrows in a and b indicate the same neuron for orientation of image location. (c) Moderately magnified image of the WM adjacent to the putamen nucleus (P, from the region indicated by the d in Fig. 2a), showing the CR-immunoreactive WMICs. (d) High magnification image of the WM adjacent to the putamen nucleus showing the CR-immunoreactive WMICs within the deep WM. Arrows in c and d indicate the same neuron for orientation of image location. Scale bar in c = 500 μm and apply to a and c. Scale bar in d = 250 μm and applies to b and d. In all images dorsal is to the top of the image and medial to the left.