Figure 11. Diagrammatic representation of a parasagittal view of the rat brain illustrating the VIP chemistry of the cortex. VIP neurons (blue) are localized to the outer layers of the cortex, with the main fiber axis projecting perpendicular to the pial surface. VIP binding (red) is shown, with the intensity of the color representing the density of VIP binding. Afferent neurons from the cortex and thalamus are shown in grey.