Figure 2

Mean CB1R intensity frequency histograms for excitatory (vGlut1-IR +) and inhibitory (vGAT-IR +) cell types across three brain regions of the monkey cortex, measured in analogue-to-digital units (ADU). PFC = prefrontal cortex, A1 = primary auditory cortex, A2 = association auditory cortex. Scale bar can be seen in the sample image for A1.