Distribution of N-Acetylgalactosamine-Positive Perineuronal Nets in the Macaque Brain: Anatomy and Implications

Figure 8

Relative frequencies of perineuronal net- and parvalbumin-positive cells in different areas of the brain of one male animal, age 5. Cells were counted in 0.92 mm² areas for each region listed. We tallied cells that stained positive for either PNNs (WFA+ Parv−, black) or parvalbumin alone (WFA− Parv+, white) as well as cells that stained for both markers (WFA+ Parv+, gray) separately. The regions examined were, from left to right, primary motor cortex (M1), primary somatosensory cortex (S1), frontal eye field (FEF), orbital gyrus, primary visual cortex (V1), mediotemporal cortex (MT), primary auditory cortex (A1), cingulate cortex, internal globus pallidus (int. GP), external globus pallidus (ext. GP), amygdala, hippocampus, putamen, thalamus, deep inferior colliculus, deep superior colliculus, superficial superior colliculus, superficial inferior colliculus, cerebellar nuclei (Nuc), vestibular nuclei (Vest. Nuc), pontine nuclei, inferior olive (IO), ventral (V) spinal cord, and dorsal (D) spinal cord.